From 6136075dcafe3b00cba7c366208451f46a3da9f0 Mon Sep 17 00:00:00 2001
From: Edward <Langley>
Date: Wed, 6 Jan 2021 14:55:01 -0800
Subject: [PATCH] chore: update docs

---
 docs/Concept-index.html                       |   77 +-
 docs/Data-type-index.html                     |   81 +-
 docs/Definitions.html                         |   39 +-
 docs/Exported-classes.html                    |   89 +
 docs/Exported-definitions.html                |   43 +-
 docs/Exported-functions.html                  |  417 ++-
 docs/Exported-generic-functions.html          |  231 +-
 docs/Exported-macros.html                     |   71 +-
 docs/Files.html                               |   37 +-
 docs/Function-index.html                      |  455 +--
 docs/Indexes.html                             |   41 +-
 docs/Internal-classes.html                    |   51 +-
 docs/Internal-definitions.html                |   43 +-
 docs/Internal-functions.html                  |   95 +-
 docs/Internal-generic-functions.html          |  100 +-
 docs/Internal-macros.html                     |   75 +-
 docs/Lisp-files.html                          |   51 +-
 docs/Packages.html                            |   45 +-
 docs/Systems.html                             |   39 +-
 docs/The-data_002dlens-package.html           |   47 +-
 docs/The-data_002dlens-system.html            |   41 +-
 docs/The-data_002dlens_002easd-file.html      |   48 +-
 .../The-data_002dlens_002elenses-package.html |   42 +-
 ...The-data_002dlens_002epackage-package.html |   41 +-
 ...data_002dlens_002etransducers-package.html |   97 +
 ...002etransducers_002einternals-package.html |   91 +
 ...dlens_002fbeta_002ftransducers-system.html |   84 +
 ...s_002flazy_002dsequence_002elisp-file.html |   80 +
 ...transducers_002fpackage_002elisp-file.html |   73 +
 ...transducer_002dprotocol_002elisp-file.html |   85 +
 ...sducers_002ftransducers_002elisp-file.html |  100 +
 ...-data_002dlens_002flens_002elisp-file.html |   47 +-
 ...ata_002dlens_002foptics_002elisp-file.html |   41 +-
 ...ta_002dlens_002fpackage_002elisp-file.html |   43 +-
 docs/Variable-index.html                      |   49 +-
 docs/data-lens-transducers.info               | 2230 +++++++++++++++
 docs/data-lens-transducers.texi               | 2450 +++++++++++++++++
 docs/data-lens-transducers.texi.info          | 2230 +++++++++++++++
 docs/data-lens.info                           | 1916 +++++++++++++
 docs/data-lens.texi                           |  645 ++++-
 docs/go-to-the-DATA_002dLENS-package.html     |   17 +-
 ...-the-DATA_002dLENS_002eLENSES-package.html |   17 +-
 ...3f_005d_005b_003f_005dT-AROUND-method.html |   17 +-
 ..._005b_003f_005dCLONE-generic-function.html |   17 +-
 ...05d_005b_003f_005dCONSTANT_002d-class.html |   17 +-
 ...b_003f_005d_005b_003f_005dLIST-method.html |   17 +-
 ...003f_005d_005b_003f_005dVECTOR-method.html |   17 +-
 ...5d_005b_003f_005dCONSTANT_002d-method.html |   17 +-
 ...5d_005b_003f_005dIDENTITY_002d-method.html |   17 +-
 ...d_005b_003f_005dFMAP-generic-function.html |   17 +-
 ...05d_005b_003f_005dIDENTITY_002d-class.html |   17 +-
 ...2dALIST_002dHISTORY_002dLENS-function.html |   17 +-
 ..._005dMAKE_002dALIST_002dLENS-function.html |   17 +-
 ..._002dHASH_002dTABLE_002dLENS-function.html |   17 +-
 ...f_005dMAKE_002dLIST_002dLENS-function.html |   17 +-
 ..._005dMAKE_002dPLIST_002dLENS-function.html |   17 +-
 ...003f_005d_005b_003f_005dOVER-function.html |   17 +-
 ..._003f_005d_005b_003f_005dSET-function.html |   17 +-
 ...5d_005b_003f_005dCONSTANT_002d-method.html |   17 +-
 ..._003f_005dUNCONSTANT-generic-function.html |   17 +-
 ...5d_005b_003f_005dIDENTITY_002d-method.html |   17 +-
 ..._003f_005dUNIDENTITY-generic-function.html |   17 +-
 ...003f_005d_005b_003f_005dVIEW-function.html |   17 +-
 ...b_003f_005dWRAP_002dCONSTANT-function.html |   17 +-
 ...b_003f_005dWRAP_002dIDENTITY-function.html |   17 +-
 ...the-DATA_002dLENS_002ePACKAGE-package.html |   17 +-
 ...DATA_002dLENS_002eTRANSDUCERS-package.html |   40 +
 ...002eTRANSDUCERS_002eINTERNALS-package.html |   40 +
 ..._005b_003f_005dDEFDOCUMENTATION-macro.html |   40 +
 ...005b_003f_005dEXIT_002dEARLY-function.html |   40 +
 ...005dHASH_002dTABLE_002dBUILDER-method.html |   40 +
 ...005b_003f_005dLIST_002dBUILDER-method.html |   40 +
 ...5b_003f_005dVECTOR_002dBUILDER-method.html |   40 +
 ...d_005b_003f_005dINIT-generic-function.html |   40 +
 ...UNCTION-COMMON_002dLISP_005b_003f_005.html |   40 +
 ...N-COMMON_002dLISP_005b_003f_005d_005b.html |   40 +
 ...COMMON_002dLISP_005b_003f_005d_005b_0.html |   40 +
 ...002dLISP_005b_003f_005d_005b_003f_005.html |   40 +
 ...d_005b_003f_005dFUNCTION-COMMON_002dL.html |   40 +
 ...5dREDUCE_002dGENERIC-generic-function.html |   40 +
 ...005dHASH_002dTABLE_002dBUILDER-method.html |   40 +
 ...005b_003f_005dLIST_002dBUILDER-method.html |   40 +
 ...5b_003f_005dVECTOR_002dBUILDER-method.html |   40 +
 ...05b_003f_005dSTEPPER-generic-function.html |   40 +
 ...005d_005b_003f_005dTRANSDUCE-function.html |   40 +
 ...005b_003f_005d_005b_003f_005dT-method.html |   40 +
 ...005b_003f_005d_005b_003f_005dT-method.html |   40 +
 ...005b_003f_005dUNWRAP-generic-function.html |   40 +
 ...f_005d_005b_003f_005dCATTING-function.html |   40 +
 ...05d_005b_003f_005dCOLLECTING-function.html |   40 +
 ...003f_005d_005b_003f_005dCOMMENT-macro.html |   40 +
 ...03f_005dCOMPRESSING_002dRUNS-function.html |   40 +
 ..._005d_005b_003f_005dDEDUPING-function.html |   40 +
 ..._005d_005b_003f_005dDROPPING-function.html |   40 +
 ..._005d_005b_003f_005dEDUCTION-function.html |   40 +
 ...005d_005b_003f_005dFILTERING-function.html |   40 +
 ...05dHASH_002dTABLE_002dSELECT-function.html |   40 +
 ...003f_005d_005b_003f_005dIOTA-function.html |   40 +
 ...005b_003f_005dLAZY_002dSEQUENCE-class.html |   40 +
 ...b_003f_005dLAZY_002dSEQUENCE-function.html |   40 +
 ...05d_005b_003f_005dMAPCATTING-function.html |   40 +
 ...f_005d_005b_003f_005dMAPPING-function.html |   40 +
 ...5b_003f_005dMV_002dFILTERING-function.html |   40 +
 ...005b_003f_005dMV_002dMAPPING-function.html |   40 +
 ...5b_003f_005dMV_002dSELECTING-function.html |   40 +
 ...05b_003f_005dLAZY_002dSEQUENCE-method.html |   40 +
 ...d_005b_003f_005dNEXT-generic-function.html |   40 +
 ...3f_005d_005b_003f_005dREPEATING-macro.html |   40 +
 ...005b_003f_005dREPEATING_002a-function.html |   40 +
 ..._003f_005d_005b_003f_005dSEQ-function.html |   40 +
 ...005d_005b_003f_005dSPLITTING-function.html |   40 +
 ...3f_005d_005b_003f_005dTAKING-function.html |   40 +
 ..._003f_005dTRANSDUCER_002dLAMBDA-macro.html |   40 +
 ...003f_005dAPPLICABLE_002dWHEN-function.html |   17 +-
 ...03f_005d_005b_003f_005dAPPLYING-macro.html |   17 +-
 ...MBINE_002dMATCHING_002dLISTS-function.html |   17 +-
 ...b_003f_005dCOMPRESS_002dRUNS-function.html |   17 +-
 ...d_005b_003f_005dCONS_002dNEW-function.html |   17 +-
 ...3f_005d_005b_003f_005dCUMSUM-function.html |   17 +-
 ...5d_005b_003f_005dDEDUPLICATE-function.html |   17 +-
 ...005d_005b_003f_005dDEFUN_002dCT-macro.html |   17 +-
 ...3f_005d_005b_003f_005dDENEST-function.html |   17 +-
 ...3f_005d_005b_003f_005dDERIVE-function.html |   17 +-
 ...f_005d_005b_003f_005dELEMENT-function.html |   17 +-
 ...f_005d_005b_003f_005dEXCLUDE-function.html |   17 +-
 ...005b_003f_005d_005b_003f_005dT-method.html |   17 +-
 ...005b_003f_005d_005b_003f_005dT-method.html |   17 +-
 ..._005dEXTRACT_002dKEY-generic-function.html |   17 +-
 ...3f_005d_005b_003f_005dFILLER-function.html |   17 +-
 ...3f_005d_005b_003f_005dFUNCTION-method.html |   40 +
 ...d_005b_003f_005dHASH_002dTABLE-method.html |   40 +
 ...003f_005d_005b_003f_005dSYMBOL-method.html |   40 +
 ...003f_005d_005b_003f_005dVECTOR-method.html |   40 +
 ...3f_005dFUNCTIONALIZE-generic-function.html |   40 +
 ...f_005d_005b_003f_005dINCLUDE-function.html |   17 +-
 ...003f_005d_005b_003f_005dJUXT-function.html |   17 +-
 ..._003f_005d_005b_003f_005dKEY-function.html |   17 +-
 ...b_003f_005dKEY_002dTRANSFORM-function.html |   17 +-
 ...f_005d_005b_003f_005dLET_002dFN-macro.html |   17 +-
 ...ATCHING_002dLIST_002dREDUCER-function.html |   17 +-
 ...05d_005b_003f_005dMAXIMIZING-function.html |   17 +-
 ..._005b_003f_005dOF_002dLENGTH-function.html |   17 +-
 ...3f_005dOF_002dMAX_002dLENGTH-function.html |   17 +-
 ...3f_005dOF_002dMIN_002dLENGTH-function.html |   17 +-
 ...b_003f_005d_005b_003f_005dON-function.html |   17 +-
 ...003f_005d_005b_003f_005dOVER-function.html |   17 +-
 ...003f_005d_005b_003f_005dPICK-function.html |   17 +-
 ...05b_003f_005dREGEX_002dMATCH-function.html |   17 +-
 ...03f_005d_005b_003f_005dSHORTCUT-macro.html |   17 +-
 ...03f_005d_005b_003f_005dSLICE-function.html |   17 +-
 ...3f_005d_005b_003f_005dSORTED-function.html |   17 +-
 ...005b_003f_005dSPLICE_002dELT-function.html |   17 +-
 ...f_005d_005b_003f_005dSUFFIXP-function.html |   40 +
 ...b_003f_005dTRANSFORM_002dELT-function.html |   17 +-
 ..._003f_005dTRANSFORM_002dHEAD-function.html |   17 +-
 ..._003f_005dTRANSFORM_002dTAIL-function.html |   17 +-
 ...3f_005d_005b_003f_005dUPDATE-function.html |   17 +-
 ...003f_005d_005b_003f_005dUPDATEF-macro.html |   17 +-
 ...f_005d_005b_003f_005dZIPPING-function.html |   17 +-
 ..._005d_005b_003f_005d_003c_003e1-macro.html |   17 +-
 ...05d_005b_003f_005d_003d_003d-function.html |   17 +-
 ...05b_003f_005d_003d_003e_003e-function.html |   17 +-
 ...b_003f_005d_005b_003f_005d_2022-macro.html |   17 +-
 docs/go-to-the-data_002dlens-system.html      |   17 +-
 .../go-to-the-data_002dlens_002easd-file.html |   17 +-
 ...dlens_002fbeta_002ftransducers-system.html |   40 +
 ...s_002flazy_002dsequence_002elisp-file.html |   40 +
 ...transducers_002fpackage_002elisp-file.html |   40 +
 ...transducer_002dprotocol_002elisp-file.html |   40 +
 ...sducers_002ftransducers_002elisp-file.html |   40 +
 ...-data_002dlens_002flens_002elisp-file.html |   17 +-
 ...ata_002dlens_002foptics_002elisp-file.html |   17 +-
 ...ta_002dlens_002fpackage_002elisp-file.html |   17 +-
 docs/index.html                               |  111 +-
 174 files changed, 14224 insertions(+), 2042 deletions(-)
 create mode 100644 docs/Exported-classes.html
 create mode 100644 docs/The-data_002dlens_002etransducers-package.html
 create mode 100644 docs/The-data_002dlens_002etransducers_002einternals-package.html
 create mode 100644 docs/The-data_002dlens_002fbeta_002ftransducers-system.html
 create mode 100644 docs/The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html
 create mode 100644 docs/The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html
 create mode 100644 docs/The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html
 create mode 100644 docs/The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html
 create mode 100644 docs/data-lens-transducers.info
 create mode 100644 docs/data-lens-transducers.texi
 create mode 100644 docs/data-lens-transducers.texi.info
 create mode 100644 docs/data-lens.info
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS-package.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS-package.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dDEFDOCUMENTATION-macro.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dEXIT_002dEARLY-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dINIT-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dHASH_002dTABLE_002dBUILDER-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dINIT-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLIST_002dBUILDER-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dINIT-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dVECTOR_002dBUILDER-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dINIT-generic-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-COMMON_002dLISP_005b_003f_005d_005b_003f_005dHASH_002dTABLE-COMMON_002dLISP_005b_003f_005d_005b_003f_005dFUNCTION-COMMON_002dLISP_005b_003f_005.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-COMMON_002dLISP_005b_003f_005d_005b_003f_005dSEQUENCE-COMMON_002dLISP_005b_003f_005d_005b_003f_005dFUNCTION-COMMON_002dLISP_005b_003f_005d_005b.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-COMMON_002dLISP_005b_003f_005d_005b_003f_005dSEQUENCE-COMMON_002dLISP_005b_003f_005d_005b_003f_005dSYMBOL-COMMON_002dLISP_005b_003f_005d_005b_0.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-COMMON_002dLISP_005b_003f_005d_005b_003f_005dSYMBOL-COMMON_002dLISP_005b_003f_005d_005b_003f_005.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-COMMON_002dLISP_005b_003f_005d_005b_003f_005dFUNCTION-COMMON_002dL.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-generic-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dSTEPPER-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dHASH_002dTABLE_002dBUILDER-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dSTEPPER-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLIST_002dBUILDER-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dSTEPPER-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dVECTOR_002dBUILDER-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dSTEPPER-generic-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dTRANSDUCE-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLIST_002dBUILDER-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-generic-function.html
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 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOLLECTING-function.html
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 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOMPRESSING_002dRUNS-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dDEDUPING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dDROPPING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dEDUCTION-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dFILTERING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dHASH_002dTABLE_002dSELECT-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dIOTA-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-class.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMAPCATTING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMAPPING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dFILTERING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dMAPPING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dSELECTING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dNEXT-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dNEXT-generic-function.html
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 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dREPEATING_002a-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dSEQ-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dSPLITTING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dTAKING-function.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dTRANSDUCER_002dLAMBDA-macro.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_005b_003f_005d_005b_003f_005dFUNCTIONALIZE-COMMON_002dLISP_005b_003f_005d_005b_003f_005dFUNCTION-method.html
 create mode 100644 docs/go-to-the-DATA_002dLENS_005b_003f_005d_005b_003f_005dFUNCTIONALIZE-COMMON_002dLISP_005b_003f_005d_005b_003f_005dHASH_002dTABLE-method.html
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diff --git a/docs/Concept-index.html b/docs/Concept-index.html
index dc4449f..676370d 100644
--- a/docs/Concept-index.html
+++ b/docs/Concept-index.html
@@ -1,42 +1,33 @@
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 <html>
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+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Concept index (The data-lens Reference Manual)</title>
+<title>Concept index (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Concept index (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Concept index (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Indexes.html#Indexes" rel="up" title="Indexes">
-<link href="Function-index.html#Function-index" rel="next" title="Function index">
-<link href="Indexes.html#Indexes" rel="prev" title="Indexes">
+<link href="Indexes.html" rel="up" title="Indexes">
+<link href="Function-index.html" rel="next" title="Function index">
+<link href="Indexes.html" rel="prev" title="Indexes">
 <style type="text/css">
 <!--
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@@ -48,14 +39,12 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Concept-index"></a>
-<div class="header">
+<span id="Concept-index"></span><div class="header">
 <p>
-Next: <a href="Function-index.html#Function-index" accesskey="n" rel="next">Function index</a>, Previous: <a href="Indexes.html#Indexes" accesskey="p" rel="prev">Indexes</a>, Up: <a href="Indexes.html#Indexes" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Function-index.html" accesskey="n" rel="next">Function index</a>, Previous: <a href="Indexes.html" accesskey="p" rel="prev">Indexes</a>, Up: <a href="Indexes.html" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Concepts"></a>
-<h3 class="appendixsec">A.1 Concepts</h3>
+<span id="Concepts"></span><h3 class="appendixsec">A.1 Concepts</h3>
 <table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Concept-index_cp_letter-D"><b>D</b></a>
  &nbsp; 
 <a class="summary-letter" href="#Concept-index_cp_letter-F"><b>F</b></a>
@@ -66,23 +55,35 @@ Next: <a href="Function-index.html#Function-index" accesskey="n" rel="next">Func
 <table class="index-cp" border="0">
 <tr><td></td><th align="left">Index Entry</th><td>&nbsp;</td><th align="left"> Section</th></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-index_cp_letter-D">D</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002easd-file.html#index-data_002dlens_002easd"><tt>data-lens.asd</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file">The data-lens․asd file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#index-data_002dlens_002flens_002elisp"><tt>data-lens/lens.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file">The data-lens/lens․lisp file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#index-data_002dlens_002foptics_002elisp"><tt>data-lens/optics.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file">The data-lens/optics․lisp file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#index-data_002dlens_002fpackage_002elisp"><tt>data-lens/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file">The data-lens/package․lisp file</a></td></tr>
+<tr><th id="Concept-index_cp_letter-D">D</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002easd-file.html#index-data_002dlens_002easd"><tt>data-lens.asd</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002easd-file.html">The data-lens․asd file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#index-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp"><tt>data-lens/beta/transducers/lazy-sequence.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html">The data-lens/beta/transducers/lazy-sequence․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#index-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp"><tt>data-lens/beta/transducers/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html">The data-lens/beta/transducers/package․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#index-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp"><tt>data-lens/beta/transducers/transducer-protocol.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html">The data-lens/beta/transducers/transducer-protocol․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#index-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp"><tt>data-lens/beta/transducers/transducers.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html">The data-lens/beta/transducers/transducers․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#index-data_002dlens_002flens_002elisp"><tt>data-lens/lens.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html">The data-lens/lens․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#index-data_002dlens_002foptics_002elisp"><tt>data-lens/optics.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html">The data-lens/optics․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#index-data_002dlens_002fpackage_002elisp"><tt>data-lens/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html">The data-lens/package․lisp file</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-index_cp_letter-F">F</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002easd-file.html#index-File_002c-Lisp_002c-data_002dlens_002easd">File, Lisp, <tt>data-lens.asd</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file">The data-lens․asd file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002flens_002elisp">File, Lisp, <tt>data-lens/lens.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file">The data-lens/lens․lisp file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002foptics_002elisp">File, Lisp, <tt>data-lens/optics.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file">The data-lens/optics․lisp file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002fpackage_002elisp">File, Lisp, <tt>data-lens/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file">The data-lens/package․lisp file</a></td></tr>
+<tr><th id="Concept-index_cp_letter-F">F</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002easd-file.html#index-File_002c-Lisp_002c-data_002dlens_002easd">File, Lisp, <tt>data-lens.asd</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002easd-file.html">The data-lens․asd file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp">File, Lisp, <tt>data-lens/beta/transducers/lazy-sequence.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html">The data-lens/beta/transducers/lazy-sequence․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp">File, Lisp, <tt>data-lens/beta/transducers/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html">The data-lens/beta/transducers/package․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp">File, Lisp, <tt>data-lens/beta/transducers/transducer-protocol.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html">The data-lens/beta/transducers/transducer-protocol․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp">File, Lisp, <tt>data-lens/beta/transducers/transducers.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html">The data-lens/beta/transducers/transducers․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002flens_002elisp">File, Lisp, <tt>data-lens/lens.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html">The data-lens/lens․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002foptics_002elisp">File, Lisp, <tt>data-lens/optics.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html">The data-lens/optics․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#index-File_002c-Lisp_002c-data_002dlens_002fpackage_002elisp">File, Lisp, <tt>data-lens/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html">The data-lens/package․lisp file</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-index_cp_letter-L">L</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002easd-file.html#index-Lisp-File_002c-data_002dlens_002easd">Lisp File, <tt>data-lens.asd</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file">The data-lens․asd file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002flens_002elisp">Lisp File, <tt>data-lens/lens.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file">The data-lens/lens․lisp file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002foptics_002elisp">Lisp File, <tt>data-lens/optics.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file">The data-lens/optics․lisp file</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002fpackage_002elisp">Lisp File, <tt>data-lens/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file">The data-lens/package․lisp file</a></td></tr>
+<tr><th id="Concept-index_cp_letter-L">L</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002easd-file.html#index-Lisp-File_002c-data_002dlens_002easd">Lisp File, <tt>data-lens.asd</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002easd-file.html">The data-lens․asd file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp">Lisp File, <tt>data-lens/beta/transducers/lazy-sequence.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html">The data-lens/beta/transducers/lazy-sequence․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp">Lisp File, <tt>data-lens/beta/transducers/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html">The data-lens/beta/transducers/package․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp">Lisp File, <tt>data-lens/beta/transducers/transducer-protocol.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html">The data-lens/beta/transducers/transducer-protocol․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp">Lisp File, <tt>data-lens/beta/transducers/transducers.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html">The data-lens/beta/transducers/transducers․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002flens_002elisp">Lisp File, <tt>data-lens/lens.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002flens_002elisp-file.html">The data-lens/lens․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002foptics_002elisp">Lisp File, <tt>data-lens/optics.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002foptics_002elisp-file.html">The data-lens/optics․lisp file</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html#index-Lisp-File_002c-data_002dlens_002fpackage_002elisp">Lisp File, <tt>data-lens/package.lisp</tt></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fpackage_002elisp-file.html">The data-lens/package․lisp file</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
 </table>
 <table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Concept-index_cp_letter-D"><b>D</b></a>
diff --git a/docs/Data-type-index.html b/docs/Data-type-index.html
index 1b14c16..c9ea03b 100644
--- a/docs/Data-type-index.html
+++ b/docs/Data-type-index.html
@@ -1,41 +1,32 @@
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 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Data type index (The data-lens Reference Manual)</title>
+<title>Data type index (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Data type index (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Data type index (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
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-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
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-<link href="Indexes.html#Indexes" rel="up" title="Indexes">
-<link href="Variable-index.html#Variable-index" rel="prev" title="Variable index">
+<link href="Indexes.html" rel="up" title="Indexes">
+<link href="Variable-index.html" rel="prev" title="Variable index">
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-<a name="Data-type-index"></a>
-<div class="header">
+<span id="Data-type-index"></span><div class="header">
 <p>
-Previous: <a href="Variable-index.html#Variable-index" accesskey="p" rel="prev">Variable index</a>, Up: <a href="Indexes.html#Indexes" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Previous: <a href="Variable-index.html" accesskey="p" rel="prev">Variable index</a>, Up: <a href="Indexes.html" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Data-types"></a>
-<h3 class="appendixsec">A.4 Data types</h3>
+<span id="Data-types"></span><h3 class="appendixsec">A.4 Data types</h3>
 <table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Data-type-index_tp_letter-C"><b>C</b></a>
  &nbsp; 
 <a class="summary-letter" href="#Data-type-index_tp_letter-D"><b>D</b></a>
  &nbsp; 
 <a class="summary-letter" href="#Data-type-index_tp_letter-I"><b>I</b></a>
  &nbsp; 
+<a class="summary-letter" href="#Data-type-index_tp_letter-L"><b>L</b></a>
+ &nbsp; 
 <a class="summary-letter" href="#Data-type-index_tp_letter-P"><b>P</b></a>
  &nbsp; 
 <a class="summary-letter" href="#Data-type-index_tp_letter-S"><b>S</b></a>
@@ -69,27 +60,37 @@ Previous: <a href="Variable-index.html#Variable-index" accesskey="p" rel="prev">
 <table class="index-tp" border="0">
 <tr><td></td><th align="left">Index Entry</th><td>&nbsp;</td><th align="left"> Section</th></tr>
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-<tr><th><a name="Data-type-index_tp_letter-C">C</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-classes.html#index-Class_002c-constant_002d"><code><span class="roman">Class, </span>constant-</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html#Internal-classes">Internal classes</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-classes.html#index-Class_002c-identity_002d"><code><span class="roman">Class, </span>identity-</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html#Internal-classes">Internal classes</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-classes.html#index-constant_002d"><code>constant-</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html#Internal-classes">Internal classes</a></td></tr>
+<tr><th id="Data-type-index_tp_letter-C">C</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-classes.html#index-Class_002c-constant_002d"><code><span class="roman">Class, </span>constant-</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html">Internal classes</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-classes.html#index-Class_002c-identity_002d"><code><span class="roman">Class, </span>identity-</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html">Internal classes</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-classes.html#index-Class_002c-lazy_002dsequence"><code><span class="roman">Class, </span>lazy-sequence</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-classes.html">Exported classes</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-classes.html#index-constant_002d"><code>constant-</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html">Internal classes</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Data-type-index_tp_letter-D">D</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens-system.html#index-data_002dlens"><code>data-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens-system.html#The-data_002dlens-system">The data-lens system</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens-package.html#index-data_002dlens-1"><code>data-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens-package.html#The-data_002dlens-package">The data-lens package</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002elenses-package.html#index-data_002dlens_002elenses"><code>data-lens.lenses</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002elenses-package.html#The-data_002dlens_2024lenses-package">The data-lens․lenses package</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002epackage-package.html#index-data_002dlens_002epackage"><code>data-lens.package</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024package-package">The data-lens․package package</a></td></tr>
+<tr><th id="Data-type-index_tp_letter-D">D</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens-system.html#index-data_002dlens"><code>data-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens-system.html">The data-lens system</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens-package.html#index-data_002dlens-1"><code>data-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens-package.html">The data-lens package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002elenses-package.html#index-data_002dlens_002elenses"><code>data-lens.lenses</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002elenses-package.html">The data-lens․lenses package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002epackage-package.html#index-data_002dlens_002epackage"><code>data-lens.package</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002epackage-package.html">The data-lens․package package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002etransducers-package.html#index-data_002dlens_002etransducers"><code>data-lens.transducers</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002etransducers-package.html">The data-lens․transducers package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002etransducers_002einternals-package.html#index-data_002dlens_002etransducers_002einternals"><code>data-lens.transducers.internals</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002etransducers_002einternals-package.html">The data-lens․transducers․internals package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers-system.html#index-data_002dlens_002fbeta_002ftransducers"><code>data-lens/beta/transducers</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers-system.html">The data-lens/beta/transducers system</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Data-type-index_tp_letter-I">I</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-classes.html#index-identity_002d"><code>identity-</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html#Internal-classes">Internal classes</a></td></tr>
+<tr><th id="Data-type-index_tp_letter-I">I</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-classes.html#index-identity_002d"><code>identity-</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html">Internal classes</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Data-type-index_tp_letter-P">P</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens-package.html#index-Package_002c-data_002dlens"><code><span class="roman">Package, </span>data-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens-package.html#The-data_002dlens-package">The data-lens package</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002elenses-package.html#index-Package_002c-data_002dlens_002elenses"><code><span class="roman">Package, </span>data-lens.lenses</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002elenses-package.html#The-data_002dlens_2024lenses-package">The data-lens․lenses package</a></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens_002epackage-package.html#index-Package_002c-data_002dlens_002epackage"><code><span class="roman">Package, </span>data-lens.package</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024package-package">The data-lens․package package</a></td></tr>
+<tr><th id="Data-type-index_tp_letter-L">L</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-classes.html#index-lazy_002dsequence-1"><code>lazy-sequence</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-classes.html">Exported classes</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Data-type-index_tp_letter-S">S</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="The-data_002dlens-system.html#index-System_002c-data_002dlens"><code><span class="roman">System, </span>data-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens-system.html#The-data_002dlens-system">The data-lens system</a></td></tr>
+<tr><th id="Data-type-index_tp_letter-P">P</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens-package.html#index-Package_002c-data_002dlens"><code><span class="roman">Package, </span>data-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens-package.html">The data-lens package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002elenses-package.html#index-Package_002c-data_002dlens_002elenses"><code><span class="roman">Package, </span>data-lens.lenses</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002elenses-package.html">The data-lens․lenses package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002epackage-package.html#index-Package_002c-data_002dlens_002epackage"><code><span class="roman">Package, </span>data-lens.package</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002epackage-package.html">The data-lens․package package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002etransducers-package.html#index-Package_002c-data_002dlens_002etransducers"><code><span class="roman">Package, </span>data-lens.transducers</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002etransducers-package.html">The data-lens․transducers package</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002etransducers_002einternals-package.html#index-Package_002c-data_002dlens_002etransducers_002einternals"><code><span class="roman">Package, </span>data-lens.transducers.internals</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002etransducers_002einternals-package.html">The data-lens․transducers․internals package</a></td></tr>
+<tr><td colspan="4"> <hr></td></tr>
+<tr><th id="Data-type-index_tp_letter-S">S</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens-system.html#index-System_002c-data_002dlens"><code><span class="roman">System, </span>data-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens-system.html">The data-lens system</a></td></tr>
+<tr><td></td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers-system.html#index-System_002c-data_002dlens_002fbeta_002ftransducers"><code><span class="roman">System, </span>data-lens/beta/transducers</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="The-data_002dlens_002fbeta_002ftransducers-system.html">The data-lens/beta/transducers system</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
 </table>
 <table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Data-type-index_tp_letter-C"><b>C</b></a>
@@ -98,6 +99,8 @@ Previous: <a href="Variable-index.html#Variable-index" accesskey="p" rel="prev">
  &nbsp; 
 <a class="summary-letter" href="#Data-type-index_tp_letter-I"><b>I</b></a>
  &nbsp; 
+<a class="summary-letter" href="#Data-type-index_tp_letter-L"><b>L</b></a>
+ &nbsp; 
 <a class="summary-letter" href="#Data-type-index_tp_letter-P"><b>P</b></a>
  &nbsp; 
 <a class="summary-letter" href="#Data-type-index_tp_letter-S"><b>S</b></a>
diff --git a/docs/Definitions.html b/docs/Definitions.html
index ebf017e..c3b2f3c 100644
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+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
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-<title>Definitions (The data-lens Reference Manual)</title>
+<title>Definitions (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Definitions (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Definitions (The data-lens/beta/transducers Reference Manual)">
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-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
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-<link href="index.html#Top" rel="up" title="Top">
-<link href="Exported-definitions.html#Exported-definitions" rel="next" title="Exported definitions">
-<link href="The-data_002dlens_002elenses-package.html#The-data_002dlens_2024lenses-package" rel="prev" title="The data-lens․lenses package">
+<link href="index.html" rel="up" title="Top">
+<link href="Exported-definitions.html" rel="next" title="Exported definitions">
+<link href="The-data_002dlens_002etransducers_002einternals-package.html" rel="prev" title="The data-lens․transducers․internals package">
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 <body lang="en">
-<a name="Definitions"></a>
-<div class="header">
+<span id="Definitions"></span><div class="header">
 <p>
-Next: <a href="Indexes.html#Indexes" accesskey="n" rel="next">Indexes</a>, Previous: <a href="Packages.html#Packages" accesskey="p" rel="prev">Packages</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Indexes.html" accesskey="n" rel="next">Indexes</a>, Previous: <a href="Packages.html" accesskey="p" rel="prev">Packages</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Definitions-1"></a>
-<h2 class="chapter">4 Definitions</h2>
+<span id="Definitions-1"></span><h2 class="chapter">4 Definitions</h2>
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diff --git a/docs/Exported-classes.html b/docs/Exported-classes.html
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+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>Exported classes (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Exported classes (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
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+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
+<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
+<link href="Exported-definitions.html" rel="up" title="Exported definitions">
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+<link href="Exported-generic-functions.html" rel="prev" title="Exported generic functions">
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+pre.display {font-family: inherit}
+pre.format {font-family: inherit}
+pre.menu-comment {font-family: serif}
+pre.menu-preformatted {font-family: serif}
+span.nolinebreak {white-space: nowrap}
+span.roman {font-family: initial; font-weight: normal}
+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+
+</head>
+
+<body lang="en">
+<span id="Exported-classes"></span><div class="header">
+<p>
+Previous: <a href="Exported-generic-functions.html" accesskey="p" rel="prev">Exported generic functions</a>, Up: <a href="Exported-definitions.html" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<span id="Classes"></span><h4 class="subsection">4.1.4 Classes</h4>
+<dl>
+<dt id="index-lazy_002dsequence-1">Class: <strong>lazy-sequence</strong> <em>()</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-class"></span><span id="index-Class_002c-lazy_002dsequence"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"><tt>lazy-sequence.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Direct superclasses</strong></dt>
+<dd><p><tt>standard-object</tt> (class)
+</p></dd>
+<dt><strong>Direct methods</strong></dt>
+<dd><ul>
+<li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-method"><tt>next</tt></a> (method)
+</li></ul>
+</dd>
+<dt><strong>Direct slots</strong></dt>
+<dd><dl>
+<dt id="index-_0025next">Slot: <strong>%next</strong></dt>
+<dd><span id="index-Slot_002c-_0025next"></span>
+<dl compact="compact">
+<dt><strong>Initargs</strong></dt>
+<dd><p><tt>:next</tt>
+</p></dd>
+<dt><strong>Readers</strong></dt>
+<dd><p><a href="Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-generic-function"><tt>next</tt></a> (generic function)
+</p></dd>
+</dl>
+</dd></dl>
+</dd>
+</dl>
+</dd></dl>
+
+
+
+
+
+</body>
+</html>
diff --git a/docs/Exported-definitions.html b/docs/Exported-definitions.html
index 42d8a8d..a256131 100644
--- a/docs/Exported-definitions.html
+++ b/docs/Exported-definitions.html
@@ -1,42 +1,33 @@
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-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Exported definitions (The data-lens Reference Manual)</title>
+<title>Exported definitions (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Exported definitions (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Exported definitions (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Definitions.html#Definitions" rel="up" title="Definitions">
-<link href="Exported-macros.html#Exported-macros" rel="next" title="Exported macros">
-<link href="Definitions.html#Definitions" rel="prev" title="Definitions">
+<link href="Definitions.html" rel="up" title="Definitions">
+<link href="Exported-macros.html" rel="next" title="Exported macros">
+<link href="Definitions.html" rel="prev" title="Definitions">
 <style type="text/css">
 <!--
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@@ -48,20 +39,20 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Exported-definitions"></a>
-<div class="header">
+<span id="Exported-definitions"></span><div class="header">
 <p>
-Next: <a href="Internal-definitions.html#Internal-definitions" accesskey="n" rel="next">Internal definitions</a>, Previous: <a href="Definitions.html#Definitions" accesskey="p" rel="prev">Definitions</a>, Up: <a href="Definitions.html#Definitions" accesskey="u" rel="up">Definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Internal-definitions.html" accesskey="n" rel="next">Internal definitions</a>, Previous: <a href="Definitions.html" accesskey="p" rel="prev">Definitions</a>, Up: <a href="Definitions.html" accesskey="u" rel="up">Definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Exported-definitions-1"></a>
-<h3 class="section">4.1 Exported definitions</h3>
+<span id="Exported-definitions-1"></span><h3 class="section">4.1 Exported definitions</h3>
 <table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="Exported-macros.html#Exported-macros" accesskey="1">Exported macros</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Exported-macros.html" accesskey="1">Exported macros</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Exported-functions.html#Exported-functions" accesskey="2">Exported functions</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Exported-functions.html" accesskey="2">Exported functions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Exported-generic-functions.html#Exported-generic-functions" accesskey="3">Exported generic functions</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Exported-generic-functions.html" accesskey="3">Exported generic functions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="Exported-classes.html" accesskey="4">Exported classes</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
 </table>
 
diff --git a/docs/Exported-functions.html b/docs/Exported-functions.html
index c9db4e1..d244bfa 100644
--- a/docs/Exported-functions.html
+++ b/docs/Exported-functions.html
@@ -1,42 +1,33 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Exported functions (The data-lens Reference Manual)</title>
+<title>Exported functions (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Exported functions (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Exported functions (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Exported-definitions.html#Exported-definitions" rel="up" title="Exported definitions">
-<link href="Exported-generic-functions.html#Exported-generic-functions" rel="next" title="Exported generic functions">
-<link href="Exported-macros.html#Exported-macros" rel="prev" title="Exported macros">
+<link href="Exported-definitions.html" rel="up" title="Exported definitions">
+<link href="Exported-generic-functions.html" rel="next" title="Exported generic functions">
+<link href="Exported-macros.html" rel="prev" title="Exported macros">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
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@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Exported-functions"></a>
-<div class="header">
+<span id="Exported-functions"></span><div class="header">
 <p>
-Next: <a href="Exported-generic-functions.html#Exported-generic-functions" accesskey="n" rel="next">Exported generic functions</a>, Previous: <a href="Exported-macros.html#Exported-macros" accesskey="p" rel="prev">Exported macros</a>, Up: <a href="Exported-definitions.html#Exported-definitions" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Exported-generic-functions.html" accesskey="n" rel="next">Exported generic functions</a>, Previous: <a href="Exported-macros.html" accesskey="p" rel="prev">Exported macros</a>, Up: <a href="Exported-definitions.html" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Functions"></a>
-<h4 class="subsection">4.1.2 Functions</h4>
+<span id="Functions"></span><h4 class="subsection">4.1.2 Functions</h4>
 <dl>
-<dt><a name="index-_003d_003d"></a>Function: <strong>==</strong> <em>TARGET &amp;key TEST</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236_003d_003d-function"></a><a name="index-Function_002c-_003d_003d"></a>
+<dt id="index-_003d_003d">Function: <strong>==</strong> <em>TARGET &amp;key TEST</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236_003d_003d-function"></span><span id="index-Function_002c-_003d_003d"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -69,8 +58,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-applicable_002dwhen"></a>Function: <strong>applicable-when</strong> <em>FUN TEST</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236APPLICABLE_002dWHEN-function"></a><a name="index-Function_002c-applicable_002dwhen"></a>
+<dt id="index-applicable_002dwhen">Function: <strong>applicable-when</strong> <em>FUN TEST</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236APPLICABLE_002dWHEN-function"></span><span id="index-Function_002c-applicable_002dwhen"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -81,8 +70,32 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-combine_002dmatching_002dlists"></a>Function: <strong>combine-matching-lists</strong> <em>&amp;key TEST &amp;allow-other-keys</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236COMBINE_002dMATCHING_002dLISTS-function"></a><a name="index-Function_002c-combine_002dmatching_002dlists"></a>
+<dt id="index-catting">Function: <strong>catting</strong> <em>()</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236CATTING-function"></span><span id="index-Function_002c-catting"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-collecting">Function: <strong>collecting</strong> <em>COLLECTOR</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COLLECTING-function"></span><span id="index-Function_002c-collecting"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-combine_002dmatching_002dlists">Function: <strong>combine-matching-lists</strong> <em>&amp;key TEST &amp;allow-other-keys</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236COMBINE_002dMATCHING_002dLISTS-function"></span><span id="index-Function_002c-combine_002dmatching_002dlists"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -93,8 +106,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-compress_002druns"></a>Function: <strong>compress-runs</strong> <em>&amp;key COLLECTOR TEST KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236COMPRESS_002dRUNS-function"></a><a name="index-Function_002c-compress_002druns"></a>
+<dt id="index-compress_002druns">Function: <strong>compress-runs</strong> <em>&amp;key COLLECTOR TEST KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236COMPRESS_002dRUNS-function"></span><span id="index-Function_002c-compress_002druns"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -105,8 +118,20 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-cumsum"></a>Function: <strong>cumsum</strong> <em>&amp;key ADD-FUN KEY COMBINE ZERO</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236CUMSUM-function"></a><a name="index-Function_002c-cumsum"></a>
+<dt id="index-compressing_002druns">Function: <strong>compressing-runs</strong> <em>&amp;key TEST COMBINER</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMPRESSING_002dRUNS-function"></span><span id="index-Function_002c-compressing_002druns"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-cumsum">Function: <strong>cumsum</strong> <em>&amp;key ADD-FUN KEY COMBINE ZERO</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236CUMSUM-function"></span><span id="index-Function_002c-cumsum"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -117,8 +142,20 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-denest"></a>Function: <strong>denest</strong> <em>&amp;key RESULT-TYPE</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236DENEST-function"></a><a name="index-Function_002c-denest"></a>
+<dt id="index-deduping">Function: <strong>deduping</strong> <em>&amp;optional TEST</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DEDUPING-function"></span><span id="index-Function_002c-deduping"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-denest">Function: <strong>denest</strong> <em>&amp;key RESULT-TYPE</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236DENEST-function"></span><span id="index-Function_002c-denest"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -129,8 +166,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-derive"></a>Function: <strong>derive</strong> <em>DIFF-FUN &amp;key KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236DERIVE-function"></a><a name="index-Function_002c-derive"></a>
+<dt id="index-derive">Function: <strong>derive</strong> <em>DIFF-FUN &amp;key KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236DERIVE-function"></span><span id="index-Function_002c-derive"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -141,8 +178,20 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-element"></a>Function: <strong>element</strong> <em>NUM</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236ELEMENT-function"></a><a name="index-Function_002c-element"></a>
+<dt id="index-dropping">Function: <strong>dropping</strong> <em>N</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DROPPING-function"></span><span id="index-Function_002c-dropping"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-element">Function: <strong>element</strong> <em>NUM</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236ELEMENT-function"></span><span id="index-Function_002c-element"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -153,8 +202,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-exclude"></a>Function: <strong>exclude</strong> <em>PRED</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236EXCLUDE-function"></a><a name="index-Function_002c-exclude"></a>
+<dt id="index-exclude">Function: <strong>exclude</strong> <em>PRED</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236EXCLUDE-function"></span><span id="index-Function_002c-exclude"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -165,8 +214,44 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-include"></a>Function: <strong>include</strong> <em>PRED</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236INCLUDE-function"></a><a name="index-Function_002c-include"></a>
+<dt id="index-exit_002dearly">Function: <strong>exit-early</strong> <em>ACC</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236EXIT_002dEARLY-function"></span><span id="index-Function_002c-exit_002dearly"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-filtering">Function: <strong>filtering</strong> <em>FUNCTION &amp;rest ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236FILTERING-function"></span><span id="index-Function_002c-filtering"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-hash_002dtable_002dselect">Function: <strong>hash-table-select</strong> <em>HASH-TABLE</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dSELECT-function"></span><span id="index-Function_002c-hash_002dtable_002dselect"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-include">Function: <strong>include</strong> <em>PRED</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236INCLUDE-function"></span><span id="index-Function_002c-include"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -177,8 +262,20 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-juxt"></a>Function: <strong>juxt</strong> <em>FUN1 &amp;rest R</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236JUXT-function"></a><a name="index-Function_002c-juxt"></a>
+<dt id="index-iota">Function: <strong>iota</strong> <em>&amp;key START STEP COUNT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236IOTA-function"></span><span id="index-Function_002c-iota"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"><tt>lazy-sequence.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-juxt">Function: <strong>juxt</strong> <em>FUN1 &amp;rest R</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236JUXT-function"></span><span id="index-Function_002c-juxt"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -189,8 +286,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-key"></a>Function: <strong>key</strong> <em>KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236KEY-function"></a><a name="index-Function_002c-key"></a>
+<dt id="index-key">Function: <strong>key</strong> <em>KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236KEY-function"></span><span id="index-Function_002c-key"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -201,8 +298,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-key_002dtransform"></a>Function: <strong>key-transform</strong> <em>FUN KEY-GET KEY-SET</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236KEY_002dTRANSFORM-function"></a><a name="index-Function_002c-key_002dtransform"></a>
+<dt id="index-key_002dtransform">Function: <strong>key-transform</strong> <em>FUN KEY-GET KEY-SET</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236KEY_002dTRANSFORM-function"></span><span id="index-Function_002c-key_002dtransform"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -213,8 +310,20 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-make_002dalist_002dlens"></a>Function: <strong>make-alist-lens</strong> <em>KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dALIST_002dLENS-function"></a><a name="index-Function_002c-make_002dalist_002dlens"></a>
+<dt id="index-lazy_002dsequence">Function: <strong>lazy-sequence</strong> <em>NEXT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-function"></span><span id="index-Function_002c-lazy_002dsequence"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"><tt>lazy-sequence.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-make_002dalist_002dlens">Function: <strong>make-alist-lens</strong> <em>KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dALIST_002dLENS-function"></span><span id="index-Function_002c-make_002dalist_002dlens"></span>
 <p>A lens for updating a alist, discarding previous values
 </p><dl compact="compact">
 <dt><strong>Package</strong></dt>
@@ -226,8 +335,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-make_002dhash_002dtable_002dlens"></a>Function: <strong>make-hash-table-lens</strong> <em>KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dHASH_002dTABLE_002dLENS-function"></a><a name="index-Function_002c-make_002dhash_002dtable_002dlens"></a>
+<dt id="index-make_002dhash_002dtable_002dlens">Function: <strong>make-hash-table-lens</strong> <em>KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dHASH_002dTABLE_002dLENS-function"></span><span id="index-Function_002c-make_002dhash_002dtable_002dlens"></span>
 <p>A lens for updating a hash-table, discarding previous values
 </p><dl compact="compact">
 <dt><strong>Package</strong></dt>
@@ -239,8 +348,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-make_002dlist_002dlens"></a>Function: <strong>make-list-lens</strong> <em>INDEX</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dLIST_002dLENS-function"></a><a name="index-Function_002c-make_002dlist_002dlens"></a>
+<dt id="index-make_002dlist_002dlens">Function: <strong>make-list-lens</strong> <em>INDEX</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dLIST_002dLENS-function"></span><span id="index-Function_002c-make_002dlist_002dlens"></span>
 <p>A lens for updating a sequence
 </p><dl compact="compact">
 <dt><strong>Package</strong></dt>
@@ -252,8 +361,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-make_002dplist_002dlens"></a>Function: <strong>make-plist-lens</strong> <em>KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dPLIST_002dLENS-function"></a><a name="index-Function_002c-make_002dplist_002dlens"></a>
+<dt id="index-make_002dplist_002dlens">Function: <strong>make-plist-lens</strong> <em>KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dPLIST_002dLENS-function"></span><span id="index-Function_002c-make_002dplist_002dlens"></span>
 <p>A lens for updating a plist, preserving previous values
 </p><dl compact="compact">
 <dt><strong>Package</strong></dt>
@@ -265,8 +374,32 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-maximizing"></a>Function: <strong>maximizing</strong> <em>RELATION MEASURE</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236MAXIMIZING-function"></a><a name="index-Function_002c-maximizing"></a>
+<dt id="index-mapcatting">Function: <strong>mapcatting</strong> <em>FUN</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPCATTING-function"></span><span id="index-Function_002c-mapcatting"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-mapping">Function: <strong>mapping</strong> <em>FUNCTION &amp;rest ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPPING-function"></span><span id="index-Function_002c-mapping"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-maximizing">Function: <strong>maximizing</strong> <em>RELATION MEASURE</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236MAXIMIZING-function"></span><span id="index-Function_002c-maximizing"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -277,8 +410,44 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-of_002dlength"></a>Function: <strong>of-length</strong> <em>LEN</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236OF_002dLENGTH-function"></a><a name="index-Function_002c-of_002dlength"></a>
+<dt id="index-mv_002dfiltering">Function: <strong>mv-filtering</strong> <em>FUNCTION &amp;rest ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dFILTERING-function"></span><span id="index-Function_002c-mv_002dfiltering"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-mv_002dmapping">Function: <strong>mv-mapping</strong> <em>FUNCTION &amp;rest ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dMAPPING-function"></span><span id="index-Function_002c-mv_002dmapping"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-mv_002dselecting">Function: <strong>mv-selecting</strong> <em>FUNCTION &amp;rest ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dSELECTING-function"></span><span id="index-Function_002c-mv_002dselecting"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-of_002dlength">Function: <strong>of-length</strong> <em>LEN</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236OF_002dLENGTH-function"></span><span id="index-Function_002c-of_002dlength"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -289,8 +458,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-of_002dmax_002dlength"></a>Function: <strong>of-max-length</strong> <em>LEN</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236OF_002dMAX_002dLENGTH-function"></a><a name="index-Function_002c-of_002dmax_002dlength"></a>
+<dt id="index-of_002dmax_002dlength">Function: <strong>of-max-length</strong> <em>LEN</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236OF_002dMAX_002dLENGTH-function"></span><span id="index-Function_002c-of_002dmax_002dlength"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -301,8 +470,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-of_002dmin_002dlength"></a>Function: <strong>of-min-length</strong> <em>LEN</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236OF_002dMIN_002dLENGTH-function"></a><a name="index-Function_002c-of_002dmin_002dlength"></a>
+<dt id="index-of_002dmin_002dlength">Function: <strong>of-min-length</strong> <em>LEN</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236OF_002dMIN_002dLENGTH-function"></span><span id="index-Function_002c-of_002dmin_002dlength"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -313,8 +482,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-on"></a>Function: <strong>on</strong> <em>FUN KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236ON-function"></a><a name="index-Function_002c-on"></a>
+<dt id="index-on">Function: <strong>on</strong> <em>FUN KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236ON-function"></span><span id="index-Function_002c-on"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -325,8 +494,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-over"></a>Function: <strong>over</strong> <em>FUN &amp;key RESULT-TYPE</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236OVER-function"></a><a name="index-Function_002c-over"></a>
+<dt id="index-over">Function: <strong>over</strong> <em>FUN &amp;key RESULT-TYPE</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236OVER-function"></span><span id="index-Function_002c-over"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -337,8 +506,8 @@ Next: <a href="Exported-generic-functions.html#Exported-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-over-1"></a>Function: <strong>over</strong> <em>LENS CB REC</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236OVER-function"></a><a name="index-Function_002c-over-1"></a>
+<dt id="index-over-1">Function: <strong>over</strong> <em>LENS CB REC</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236OVER-function"></span><span id="index-Function_002c-over-1"></span>
 <p>Given a lens, a callback and a record, apply the lens to the
 record, transform it by the callback and return copy of the record,
 updated to contain the result of the callback. This is the fundamental
@@ -377,8 +546,8 @@ lambda that actually pulls a value out of a record later.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-pick"></a>Function: <strong>pick</strong> <em>SELECTOR</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236PICK-function"></a><a name="index-Function_002c-pick"></a>
+<dt id="index-pick">Function: <strong>pick</strong> <em>SELECTOR</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236PICK-function"></span><span id="index-Function_002c-pick"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -389,8 +558,8 @@ lambda that actually pulls a value out of a record later.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-regex_002dmatch"></a>Function: <strong>regex-match</strong> <em>REGEX</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236REGEX_002dMATCH-function"></a><a name="index-Function_002c-regex_002dmatch"></a>
+<dt id="index-regex_002dmatch">Function: <strong>regex-match</strong> <em>REGEX</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236REGEX_002dMATCH-function"></span><span id="index-Function_002c-regex_002dmatch"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -401,8 +570,20 @@ lambda that actually pulls a value out of a record later.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-set"></a>Function: <strong>set</strong> <em>LENS V REC</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236SET-function"></a><a name="index-Function_002c-set"></a>
+<dt id="index-repeating_002a">Function: <strong>repeating*</strong> <em>V &amp;key COUNT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING_002a-function"></span><span id="index-Function_002c-repeating_002a"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"><tt>lazy-sequence.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-set">Function: <strong>set</strong> <em>LENS V REC</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236SET-function"></span><span id="index-Function_002c-set"></span>
 <p>Given a lens, a value and a rec, immutably update the rec to
 contain the new value at the location focused by the lens.
 </p><dl compact="compact">
@@ -415,8 +596,8 @@ contain the new value at the location focused by the lens.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-slice"></a>Function: <strong>slice</strong> <em>START &amp;optional END</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236SLICE-function"></a><a name="index-Function_002c-slice"></a>
+<dt id="index-slice">Function: <strong>slice</strong> <em>START &amp;optional END</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236SLICE-function"></span><span id="index-Function_002c-slice"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -427,8 +608,8 @@ contain the new value at the location focused by the lens.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-sorted"></a>Function: <strong>sorted</strong> <em>COMPARATOR &amp;rest R &amp;key KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236SORTED-function"></a><a name="index-Function_002c-sorted"></a>
+<dt id="index-sorted">Function: <strong>sorted</strong> <em>COMPARATOR &amp;rest R &amp;key KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236SORTED-function"></span><span id="index-Function_002c-sorted"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -439,8 +620,8 @@ contain the new value at the location focused by the lens.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-splice_002delt"></a>Function: <strong>splice-elt</strong> <em>ELT FUN</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236SPLICE_002dELT-function"></a><a name="index-Function_002c-splice_002delt"></a>
+<dt id="index-splice_002delt">Function: <strong>splice-elt</strong> <em>ELT FUN</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236SPLICE_002dELT-function"></span><span id="index-Function_002c-splice_002delt"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -451,8 +632,20 @@ contain the new value at the location focused by the lens.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-transform_002delt"></a>Function: <strong>transform-elt</strong> <em>ELT FUN</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dELT-function"></a><a name="index-Function_002c-transform_002delt"></a>
+<dt id="index-splitting">Function: <strong>splitting</strong> <em>&amp;rest FUNCTIONS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236SPLITTING-function"></span><span id="index-Function_002c-splitting"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-suffixp">Function: <strong>suffixp</strong> <em>SUFFIX &amp;key TEST</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236SUFFIXP-function"></span><span id="index-Function_002c-suffixp"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -463,8 +656,32 @@ contain the new value at the location focused by the lens.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-transform_002dhead"></a>Function: <strong>transform-head</strong> <em>FUN</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dHEAD-function"></a><a name="index-Function_002c-transform_002dhead"></a>
+<dt id="index-taking">Function: <strong>taking</strong> <em>N</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236TAKING-function"></span><span id="index-Function_002c-taking"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-transduce">Function: <strong>transduce</strong> <em>XF BUILD SEQ</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236TRANSDUCE-function"></span><span id="index-Function_002c-transduce"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-transform_002delt">Function: <strong>transform-elt</strong> <em>ELT FUN</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dELT-function"></span><span id="index-Function_002c-transform_002delt"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -475,8 +692,8 @@ contain the new value at the location focused by the lens.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-transform_002dtail"></a>Function: <strong>transform-tail</strong> <em>FUN</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dTAIL-function"></a><a name="index-Function_002c-transform_002dtail"></a>
+<dt id="index-transform_002dhead">Function: <strong>transform-head</strong> <em>FUN</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dHEAD-function"></span><span id="index-Function_002c-transform_002dhead"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -487,8 +704,20 @@ contain the new value at the location focused by the lens.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-view"></a>Function: <strong>view</strong> <em>LENS REC</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236VIEW-function"></a><a name="index-Function_002c-view"></a>
+<dt id="index-transform_002dtail">Function: <strong>transform-tail</strong> <em>FUN</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dTAIL-function"></span><span id="index-Function_002c-transform_002dtail"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002flens_002elisp-file.html#go-to-the-data_002dlens_002flens_2024lisp-file"><tt>lens.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-view">Function: <strong>view</strong> <em>LENS REC</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236VIEW-function"></span><span id="index-Function_002c-view"></span>
 <p>Given a lens and a rec, return the focused value
 </p><dl compact="compact">
 <dt><strong>Package</strong></dt>
@@ -500,8 +729,8 @@ contain the new value at the location focused by the lens.
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-zipping"></a>Function: <strong>zipping</strong> <em>RESULT-TYPE &amp;key FILL-VALUE</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236ZIPPING-function"></a><a name="index-Function_002c-zipping"></a>
+<dt id="index-zipping">Function: <strong>zipping</strong> <em>RESULT-TYPE &amp;key FILL-VALUE</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236ZIPPING-function"></span><span id="index-Function_002c-zipping"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -515,7 +744,7 @@ contain the new value at the location focused by the lens.
 <hr>
 <div class="header">
 <p>
-Next: <a href="Exported-generic-functions.html#Exported-generic-functions" accesskey="n" rel="next">Exported generic functions</a>, Previous: <a href="Exported-macros.html#Exported-macros" accesskey="p" rel="prev">Exported macros</a>, Up: <a href="Exported-definitions.html#Exported-definitions" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Exported-generic-functions.html" accesskey="n" rel="next">Exported generic functions</a>, Previous: <a href="Exported-macros.html" accesskey="p" rel="prev">Exported macros</a>, Up: <a href="Exported-definitions.html" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 
 
diff --git a/docs/Exported-generic-functions.html b/docs/Exported-generic-functions.html
index bb49fff..93f2092 100644
--- a/docs/Exported-generic-functions.html
+++ b/docs/Exported-generic-functions.html
@@ -1,42 +1,33 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Exported generic functions (The data-lens Reference Manual)</title>
+<title>Exported generic functions (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Exported generic functions (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Exported generic functions (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Exported-definitions.html#Exported-definitions" rel="up" title="Exported definitions">
-<link href="Internal-definitions.html#Internal-definitions" rel="next" title="Internal definitions">
-<link href="Exported-functions.html#Exported-functions" rel="prev" title="Exported functions">
+<link href="Exported-definitions.html" rel="up" title="Exported definitions">
+<link href="Exported-classes.html" rel="next" title="Exported classes">
+<link href="Exported-functions.html" rel="prev" title="Exported functions">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
 blockquote.indentedblock {margin-right: 0em}
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 div.example {margin-left: 3.2em}
 div.lisp {margin-left: 3.2em}
-div.smalldisplay {margin-left: 3.2em}
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 span.sansserif {font-family: sans-serif; font-weight: normal}
@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Exported-generic-functions"></a>
-<div class="header">
+<span id="Exported-generic-functions"></span><div class="header">
 <p>
-Previous: <a href="Exported-functions.html#Exported-functions" accesskey="p" rel="prev">Exported functions</a>, Up: <a href="Exported-definitions.html#Exported-definitions" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Exported-classes.html" accesskey="n" rel="next">Exported classes</a>, Previous: <a href="Exported-functions.html" accesskey="p" rel="prev">Exported functions</a>, Up: <a href="Exported-definitions.html" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Generic-functions"></a>
-<h4 class="subsection">4.1.3 Generic functions</h4>
+<span id="Generic-functions"></span><h4 class="subsection">4.1.3 Generic functions</h4>
 <dl>
-<dt><a name="index-extract_002dkey"></a>Generic Function: <strong>extract-key</strong> <em>MAP KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-generic-function"></a><a name="index-Generic-Function_002c-extract_002dkey"></a>
+<dt id="index-extract_002dkey">Generic Function: <strong>extract-key</strong> <em>MAP KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-generic-function"></span><span id="index-Generic-Function_002c-extract_002dkey"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -68,18 +57,200 @@ Previous: <a href="Exported-functions.html#Exported-functions" accesskey="p" rel
 </p></dd>
 <dt><strong>Methods</strong></dt>
 <dd><dl>
-<dt><a name="index-extract_002dkey-1"></a>Method: <strong>extract-key</strong> <em>(MAP <tt>hash-table</tt>) KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-COMMON_002dLISP_2236_2236HASH_002dTABLE-COMMON_002dLISP_2236_2236T-method"></a><a name="index-Method_002c-extract_002dkey"></a>
+<dt id="index-extract_002dkey-1">Method: <strong>extract-key</strong> <em>(MAP <tt>hash-table</tt>) KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-COMMON_002dLISP_2236_2236HASH_002dTABLE-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-extract_002dkey"></span>
 </dd></dl>
 <dl>
-<dt><a name="index-extract_002dkey-2"></a>Method: <strong>extract-key</strong> <em>(MAP <tt>list</tt>) KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-COMMON_002dLISP_2236_2236LIST-COMMON_002dLISP_2236_2236T-method"></a><a name="index-Method_002c-extract_002dkey-1"></a>
+<dt id="index-extract_002dkey-2">Method: <strong>extract-key</strong> <em>(MAP <tt>list</tt>) KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-COMMON_002dLISP_2236_2236LIST-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-extract_002dkey-1"></span>
+</dd></dl>
+</dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-functionalize">Generic Function: <strong>functionalize</strong> <em>IT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-generic-function"></span><span id="index-Generic-Function_002c-functionalize"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002flens_002elisp-file.html#go-to-the-data_002dlens_002flens_2024lisp-file"><tt>lens.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Methods</strong></dt>
+<dd><dl>
+<dt id="index-functionalize-1">Method: <strong>functionalize</strong> <em>(IT <tt>hash-table</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236HASH_002dTABLE-method"></span><span id="index-Method_002c-functionalize"></span>
+</dd></dl>
+<dl>
+<dt id="index-functionalize-2">Method: <strong>functionalize</strong> <em>(IT <tt>vector</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236VECTOR-method"></span><span id="index-Method_002c-functionalize-1"></span>
+</dd></dl>
+<dl>
+<dt id="index-functionalize-3">Method: <strong>functionalize</strong> <em>(IT <tt>symbol</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236SYMBOL-method"></span><span id="index-Method_002c-functionalize-2"></span>
+</dd></dl>
+<dl>
+<dt id="index-functionalize-4">Method: <strong>functionalize</strong> <em>(IT <tt>function</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236FUNCTION-method"></span><span id="index-Method_002c-functionalize-3"></span>
+</dd></dl>
+</dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-init">Generic Function: <strong>init</strong> <em>CLIENT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-generic-function"></span><span id="index-Generic-Function_002c-init"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Methods</strong></dt>
+<dd><dl>
+<dt id="index-init-1">Method: <strong>init</strong> <em>(IT <tt>(eql list-builder)</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-method"></span><span id="index-Method_002c-init"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-init-2">Method: <strong>init</strong> <em>(IT <tt>(eql vector-builder)</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236VECTOR_002dBUILDER_2769-method"></span><span id="index-Method_002c-init-1"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-init-3">Method: <strong>init</strong> <em>(IT <tt>(eql hash-table-builder)</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dBUILDER_2769-method"></span><span id="index-Method_002c-init-2"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+</dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-reduce_002dgeneric">Generic Function: <strong>reduce-generic</strong> <em>SEQ FUNC INIT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-generic-function"></span><span id="index-Generic-Function_002c-reduce_002dgeneric"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Methods</strong></dt>
+<dd><dl>
+<dt id="index-reduce_002dgeneric-1">Method: <strong>reduce-generic</strong> <em>(SEQ <tt>lazy-sequence</tt>) (FUNC <tt>function</tt>) INIT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-reduce_002dgeneric"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"><tt>lazy-sequence.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-reduce_002dgeneric-2">Method: <strong>reduce-generic</strong> <em>(SEQ <tt>sequence</tt>) (FUNC <tt>function</tt>) INIT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236SEQUENCE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-reduce_002dgeneric-1"></span>
+</dd></dl>
+<dl>
+<dt id="index-reduce_002dgeneric-3">Method: <strong>reduce-generic</strong> <em>(SEQ <tt>sequence</tt>) (FUNC <tt>symbol</tt>) INIT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236SEQUENCE-COMMON_002dLISP_2236_2236SYMBOL-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-reduce_002dgeneric-2"></span>
+</dd></dl>
+<dl>
+<dt id="index-reduce_002dgeneric-4">Method: <strong>reduce-generic</strong> <em>SEQ (FUNC <tt>symbol</tt>) INIT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236SYMBOL-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-reduce_002dgeneric-3"></span>
+</dd></dl>
+<dl>
+<dt id="index-reduce_002dgeneric-5">Method: <strong>reduce-generic</strong> <em>(SEQ <tt>hash-table</tt>) (FUNC <tt>function</tt>) INIT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236HASH_002dTABLE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-reduce_002dgeneric-4"></span>
+</dd></dl>
+</dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-stepper">Generic Function: <strong>stepper</strong> <em>CLIENT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-generic-function"></span><span id="index-Generic-Function_002c-stepper"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Methods</strong></dt>
+<dd><dl>
+<dt id="index-stepper-1">Method: <strong>stepper</strong> <em>(IT <tt>(eql list-builder)</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-method"></span><span id="index-Method_002c-stepper"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-stepper-2">Method: <strong>stepper</strong> <em>(IT <tt>(eql vector-builder)</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236VECTOR_002dBUILDER_2769-method"></span><span id="index-Method_002c-stepper-1"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-stepper-3">Method: <strong>stepper</strong> <em>(IT <tt>(eql hash-table-builder)</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dBUILDER_2769-method"></span><span id="index-Method_002c-stepper-2"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+</dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-unwrap">Generic Function: <strong>unwrap</strong> <em>CLIENT OBJ</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-generic-function"></span><span id="index-Generic-Function_002c-unwrap"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Methods</strong></dt>
+<dd><dl>
+<dt id="index-unwrap-1">Method: <strong>unwrap</strong> <em>(IT <tt>(eql list-builder)</tt>) OBJ</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-unwrap"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-unwrap-2">Method: <strong>unwrap</strong> <em>CLIENT OBJ</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236T-method"></span><span id="index-Method_002c-unwrap-1"></span>
 </dd></dl>
 </dd>
 </dl>
 </dd></dl>
 
-
+<hr>
+<div class="header">
+<p>
+Next: <a href="Exported-classes.html" accesskey="n" rel="next">Exported classes</a>, Previous: <a href="Exported-functions.html" accesskey="p" rel="prev">Exported functions</a>, Up: <a href="Exported-definitions.html" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
 
 
 
diff --git a/docs/Exported-macros.html b/docs/Exported-macros.html
index 931fc33..2526c73 100644
--- a/docs/Exported-macros.html
+++ b/docs/Exported-macros.html
@@ -1,42 +1,33 @@
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+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
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 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Exported macros (The data-lens Reference Manual)</title>
+<title>Exported macros (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Exported macros (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Exported macros (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Exported-definitions.html#Exported-definitions" rel="up" title="Exported definitions">
-<link href="Exported-functions.html#Exported-functions" rel="next" title="Exported functions">
-<link href="Exported-definitions.html#Exported-definitions" rel="prev" title="Exported definitions">
+<link href="Exported-definitions.html" rel="up" title="Exported definitions">
+<link href="Exported-functions.html" rel="next" title="Exported functions">
+<link href="Exported-definitions.html" rel="prev" title="Exported definitions">
 <style type="text/css">
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@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Exported-macros"></a>
-<div class="header">
+<span id="Exported-macros"></span><div class="header">
 <p>
-Next: <a href="Exported-functions.html#Exported-functions" accesskey="n" rel="next">Exported functions</a>, Previous: <a href="Exported-definitions.html#Exported-definitions" accesskey="p" rel="prev">Exported definitions</a>, Up: <a href="Exported-definitions.html#Exported-definitions" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Exported-functions.html" accesskey="n" rel="next">Exported functions</a>, Previous: <a href="Exported-definitions.html" accesskey="p" rel="prev">Exported definitions</a>, Up: <a href="Exported-definitions.html" accesskey="u" rel="up">Exported definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Macros"></a>
-<h4 class="subsection">4.1.1 Macros</h4>
+<span id="Macros"></span><h4 class="subsection">4.1.1 Macros</h4>
 <dl>
-<dt><a name="index-_003c_003e1"></a>Macro: <strong>&lt;&gt;1</strong> <em>&amp;rest FUNS</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236_003c_003e1-macro"></a><a name="index-Macro_002c-_003c_003e1"></a>
+<dt id="index-_003c_003e1">Macro: <strong>&lt;&gt;1</strong> <em>&amp;rest FUNS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236_003c_003e1-macro"></span><span id="index-Macro_002c-_003c_003e1"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -69,8 +58,8 @@ Next: <a href="Exported-functions.html#Exported-functions" accesskey="n" rel="ne
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-applying"></a>Macro: <strong>applying</strong> <em>FUN &amp;rest ARGS</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236APPLYING-macro"></a><a name="index-Macro_002c-applying"></a>
+<dt id="index-applying">Macro: <strong>applying</strong> <em>FUN &amp;rest ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236APPLYING-macro"></span><span id="index-Macro_002c-applying"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -81,8 +70,8 @@ Next: <a href="Exported-functions.html#Exported-functions" accesskey="n" rel="ne
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-defun_002dct"></a>Macro: <strong>defun-ct</strong> <em>NAME (&amp;rest ARGS) &amp;body BODY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236DEFUN_002dCT-macro"></a><a name="index-Macro_002c-defun_002dct"></a>
+<dt id="index-defun_002dct">Macro: <strong>defun-ct</strong> <em>NAME (&amp;rest ARGS) &amp;body BODY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236DEFUN_002dCT-macro"></span><span id="index-Macro_002c-defun_002dct"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -93,8 +82,8 @@ Next: <a href="Exported-functions.html#Exported-functions" accesskey="n" rel="ne
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-let_002dfn"></a>Macro: <strong>let-fn</strong> <em>(&amp;rest BINDINGS) &amp;body BODY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236LET_002dFN-macro"></a><a name="index-Macro_002c-let_002dfn"></a>
+<dt id="index-let_002dfn">Macro: <strong>let-fn</strong> <em>(&amp;rest BINDINGS) &amp;body BODY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236LET_002dFN-macro"></span><span id="index-Macro_002c-let_002dfn"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -105,8 +94,20 @@ Next: <a href="Exported-functions.html#Exported-functions" accesskey="n" rel="ne
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-shortcut"></a>Macro: <strong>shortcut</strong> <em>NAME FUNCTION &amp;body BOUND-ARGS</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236SHORTCUT-macro"></a><a name="index-Macro_002c-shortcut"></a>
+<dt id="index-repeating">Macro: <strong>repeating</strong> <em>V</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING-macro"></span><span id="index-Macro_002c-repeating"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"><tt>lazy-sequence.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-shortcut">Macro: <strong>shortcut</strong> <em>NAME FUNCTION &amp;body BOUND-ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236SHORTCUT-macro"></span><span id="index-Macro_002c-shortcut"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -117,8 +118,8 @@ Next: <a href="Exported-functions.html#Exported-functions" accesskey="n" rel="ne
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-_2022"></a>Macro: <strong>•</strong> <em>&amp;rest FUNS</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236_2022-macro"></a><a name="index-Macro_002c-_2022"></a>
+<dt id="index-_2022">Macro: <strong>•</strong> <em>&amp;rest FUNS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236_2022-macro"></span><span id="index-Macro_002c-_2022"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
diff --git a/docs/Files.html b/docs/Files.html
index a2cc0f0..e43576d 100644
--- a/docs/Files.html
+++ b/docs/Files.html
@@ -1,42 +1,33 @@
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 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Files (The data-lens Reference Manual)</title>
+<title>Files (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Files (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Files (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="index.html#Top" rel="up" title="Top">
-<link href="Lisp-files.html#Lisp-files" rel="next" title="Lisp files">
-<link href="The-data_002dlens-system.html#The-data_002dlens-system" rel="prev" title="The data-lens system">
+<link href="index.html" rel="up" title="Top">
+<link href="Lisp-files.html" rel="next" title="Lisp files">
+<link href="The-data_002dlens-system.html" rel="prev" title="The data-lens system">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
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@@ -48,19 +39,17 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Files"></a>
-<div class="header">
+<span id="Files"></span><div class="header">
 <p>
-Next: <a href="Packages.html#Packages" accesskey="n" rel="next">Packages</a>, Previous: <a href="Systems.html#Systems" accesskey="p" rel="prev">Systems</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Packages.html" accesskey="n" rel="next">Packages</a>, Previous: <a href="Systems.html" accesskey="p" rel="prev">Systems</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Files-1"></a>
-<h2 class="chapter">2 Files</h2>
+<span id="Files-1"></span><h2 class="chapter">2 Files</h2>
 <p>Files are sorted by type and then listed depth-first from the systems
 components trees.
 </p>
 <table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="Lisp-files.html#Lisp-files" accesskey="1">Lisp files</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Lisp-files.html" accesskey="1">Lisp files</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
 </table>
 
diff --git a/docs/Function-index.html b/docs/Function-index.html
index ff77e32..4b666f8 100644
--- a/docs/Function-index.html
+++ b/docs/Function-index.html
@@ -1,42 +1,33 @@
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 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Function index (The data-lens Reference Manual)</title>
+<title>Function index (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Function index (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Function index (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Indexes.html#Indexes" rel="up" title="Indexes">
-<link href="Variable-index.html#Variable-index" rel="next" title="Variable index">
-<link href="Concept-index.html#Concept-index" rel="prev" title="Concept index">
+<link href="Indexes.html" rel="up" title="Indexes">
+<link href="Variable-index.html" rel="next" title="Variable index">
+<link href="Concept-index.html" rel="prev" title="Concept index">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
 blockquote.indentedblock {margin-right: 0em}
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@@ -48,14 +39,12 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Function-index"></a>
-<div class="header">
+<span id="Function-index"></span><div class="header">
 <p>
-Next: <a href="Variable-index.html#Variable-index" accesskey="n" rel="next">Variable index</a>, Previous: <a href="Concept-index.html#Concept-index" accesskey="p" rel="prev">Concept index</a>, Up: <a href="Indexes.html#Indexes" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Variable-index.html" accesskey="n" rel="next">Variable index</a>, Previous: <a href="Concept-index.html" accesskey="p" rel="prev">Concept index</a>, Up: <a href="Indexes.html" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Functions-2"></a>
-<h3 class="appendixsec">A.2 Functions</h3>
+<span id="Functions-2"></span><h3 class="appendixsec">A.2 Functions</h3>
 <table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Function-index_fn_symbol-1"><b>&lt;</b></a>
  &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_symbol-2"><b>=</b></a>
@@ -75,6 +64,8 @@ Next: <a href="Variable-index.html#Variable-index" accesskey="n" rel="next">Vari
  &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-G"><b>G</b></a>
  &nbsp; 
+<a class="summary-letter" href="#Function-index_fn_letter-H"><b>H</b></a>
+ &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-I"><b>I</b></a>
  &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-J"><b>J</b></a>
@@ -85,6 +76,8 @@ Next: <a href="Variable-index.html#Variable-index" accesskey="n" rel="next">Vari
  &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-M"><b>M</b></a>
  &nbsp; 
+<a class="summary-letter" href="#Function-index_fn_letter-N"><b>N</b></a>
+ &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-O"><b>O</b></a>
  &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-P"><b>P</b></a>
@@ -107,181 +100,285 @@ Next: <a href="Variable-index.html#Variable-index" accesskey="n" rel="next">Vari
 <table class="index-fn" border="0">
 <tr><td></td><th align="left">Index Entry</th><td>&nbsp;</td><th align="left"> Section</th></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_symbol-1">&lt;</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-_003c_003e1"><code>&lt;&gt;1</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
+<tr><th id="Function-index_fn_symbol-1">&lt;</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-_003c_003e1"><code>&lt;&gt;1</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_symbol-2">=</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-_003d_003d"><code>==</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-_003d_003e_003e"><code>=&gt;&gt;</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
+<tr><th id="Function-index_fn_symbol-2">=</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-_003d_003d"><code>==</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-_003d_003e_003e"><code>=&gt;&gt;</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_symbol-3">•</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-_2022"><code>•</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
+<tr><th id="Function-index_fn_symbol-3">•</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-_2022"><code>•</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-A">A</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-applicable_002dwhen"><code>applicable-when</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-applying"><code>applying</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
+<tr><th id="Function-index_fn_letter-A">A</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-applicable_002dwhen"><code>applicable-when</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-applying"><code>applying</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-C">C</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-clone"><code>clone</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-clone-1"><code>clone</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-combine_002dmatching_002dlists"><code>combine-matching-lists</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-compress_002druns"><code>compress-runs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-cons_002dnew"><code>cons-new</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-cumsum"><code>cumsum</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-C">C</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-catting"><code>catting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-clone"><code>clone</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-clone-1"><code>clone</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-collecting"><code>collecting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-combine_002dmatching_002dlists"><code>combine-matching-lists</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-macros.html#index-comment"><code>comment</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html">Internal macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-compress_002druns"><code>compress-runs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-compressing_002druns"><code>compressing-runs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-cons_002dnew"><code>cons-new</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-cumsum"><code>cumsum</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-D">D</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-deduplicate"><code>deduplicate</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-defun_002dct"><code>defun-ct</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-denest"><code>denest</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-derive"><code>derive</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-D">D</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-deduping"><code>deduping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-deduplicate"><code>deduplicate</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-macros.html#index-defdocumentation"><code>defdocumentation</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html">Internal macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-defun_002dct"><code>defun-ct</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-denest"><code>denest</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-derive"><code>derive</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-dropping"><code>dropping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-E">E</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-element"><code>element</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-exclude"><code>exclude</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-extract_002dkey"><code>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html#Exported-generic-functions">Exported generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-extract_002dkey-1"><code>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html#Exported-generic-functions">Exported generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-extract_002dkey-2"><code>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html#Exported-generic-functions">Exported generic functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-E">E</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-eduction"><code>eduction</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-element"><code>element</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-exclude"><code>exclude</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-exit_002dearly"><code>exit-early</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-extract_002dkey"><code>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-extract_002dkey-1"><code>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-extract_002dkey-2"><code>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-F">F</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-filler"><code>filler</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap-1"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap-2"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap-3"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap-4"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-_003d_003d"><code><span class="roman">Function, </span>==</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-_003d_003e_003e"><code><span class="roman">Function, </span>=&gt;&gt;</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-applicable_002dwhen"><code><span class="roman">Function, </span>applicable-when</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-combine_002dmatching_002dlists"><code><span class="roman">Function, </span>combine-matching-lists</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-compress_002druns"><code><span class="roman">Function, </span>compress-runs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-cons_002dnew"><code><span class="roman">Function, </span>cons-new</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-cumsum"><code><span class="roman">Function, </span>cumsum</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-deduplicate"><code><span class="roman">Function, </span>deduplicate</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-denest"><code><span class="roman">Function, </span>denest</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-derive"><code><span class="roman">Function, </span>derive</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-element"><code><span class="roman">Function, </span>element</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-exclude"><code><span class="roman">Function, </span>exclude</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-filler"><code><span class="roman">Function, </span>filler</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-include"><code><span class="roman">Function, </span>include</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-juxt"><code><span class="roman">Function, </span>juxt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-key"><code><span class="roman">Function, </span>key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-key_002dtransform"><code><span class="roman">Function, </span>key-transform</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-make_002dalist_002dhistory_002dlens"><code><span class="roman">Function, </span>make-alist-history-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-make_002dalist_002dlens"><code><span class="roman">Function, </span>make-alist-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-make_002dhash_002dtable_002dlens"><code><span class="roman">Function, </span>make-hash-table-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-make_002dlist_002dlens"><code><span class="roman">Function, </span>make-list-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-make_002dplist_002dlens"><code><span class="roman">Function, </span>make-plist-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-matching_002dlist_002dreducer"><code><span class="roman">Function, </span>matching-list-reducer</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-maximizing"><code><span class="roman">Function, </span>maximizing</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-of_002dlength"><code><span class="roman">Function, </span>of-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-of_002dmax_002dlength"><code><span class="roman">Function, </span>of-max-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-of_002dmin_002dlength"><code><span class="roman">Function, </span>of-min-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-on"><code><span class="roman">Function, </span>on</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-over"><code><span class="roman">Function, </span>over</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-over-1"><code><span class="roman">Function, </span>over</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-pick"><code><span class="roman">Function, </span>pick</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-regex_002dmatch"><code><span class="roman">Function, </span>regex-match</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-set"><code><span class="roman">Function, </span>set</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-slice"><code><span class="roman">Function, </span>slice</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-sorted"><code><span class="roman">Function, </span>sorted</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-splice_002delt"><code><span class="roman">Function, </span>splice-elt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-transform_002delt"><code><span class="roman">Function, </span>transform-elt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-transform_002dhead"><code><span class="roman">Function, </span>transform-head</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-transform_002dtail"><code><span class="roman">Function, </span>transform-tail</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-update"><code><span class="roman">Function, </span>update</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-view"><code><span class="roman">Function, </span>view</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-wrap_002dconstant"><code><span class="roman">Function, </span>wrap-constant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-wrap_002didentity"><code><span class="roman">Function, </span>wrap-identity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-zipping"><code><span class="roman">Function, </span>zipping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-F">F</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-filler"><code>filler</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-filtering"><code>filtering</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap-1"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap-2"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap-3"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-fmap-4"><code>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-_003d_003d"><code><span class="roman">Function, </span>==</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-_003d_003e_003e"><code><span class="roman">Function, </span>=&gt;&gt;</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-applicable_002dwhen"><code><span class="roman">Function, </span>applicable-when</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-catting"><code><span class="roman">Function, </span>catting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-collecting"><code><span class="roman">Function, </span>collecting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-combine_002dmatching_002dlists"><code><span class="roman">Function, </span>combine-matching-lists</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-compress_002druns"><code><span class="roman">Function, </span>compress-runs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-compressing_002druns"><code><span class="roman">Function, </span>compressing-runs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-cons_002dnew"><code><span class="roman">Function, </span>cons-new</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-cumsum"><code><span class="roman">Function, </span>cumsum</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-deduping"><code><span class="roman">Function, </span>deduping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-deduplicate"><code><span class="roman">Function, </span>deduplicate</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-denest"><code><span class="roman">Function, </span>denest</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-derive"><code><span class="roman">Function, </span>derive</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-dropping"><code><span class="roman">Function, </span>dropping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-eduction"><code><span class="roman">Function, </span>eduction</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-element"><code><span class="roman">Function, </span>element</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-exclude"><code><span class="roman">Function, </span>exclude</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-exit_002dearly"><code><span class="roman">Function, </span>exit-early</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-filler"><code><span class="roman">Function, </span>filler</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-filtering"><code><span class="roman">Function, </span>filtering</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-hash_002dtable_002dselect"><code><span class="roman">Function, </span>hash-table-select</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-include"><code><span class="roman">Function, </span>include</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-iota"><code><span class="roman">Function, </span>iota</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-juxt"><code><span class="roman">Function, </span>juxt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-key"><code><span class="roman">Function, </span>key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-key_002dtransform"><code><span class="roman">Function, </span>key-transform</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-lazy_002dsequence"><code><span class="roman">Function, </span>lazy-sequence</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-make_002dalist_002dhistory_002dlens"><code><span class="roman">Function, </span>make-alist-history-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-make_002dalist_002dlens"><code><span class="roman">Function, </span>make-alist-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-make_002dhash_002dtable_002dlens"><code><span class="roman">Function, </span>make-hash-table-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-make_002dlist_002dlens"><code><span class="roman">Function, </span>make-list-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-make_002dplist_002dlens"><code><span class="roman">Function, </span>make-plist-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-mapcatting"><code><span class="roman">Function, </span>mapcatting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-mapping"><code><span class="roman">Function, </span>mapping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-matching_002dlist_002dreducer"><code><span class="roman">Function, </span>matching-list-reducer</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-maximizing"><code><span class="roman">Function, </span>maximizing</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-mv_002dfiltering"><code><span class="roman">Function, </span>mv-filtering</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-mv_002dmapping"><code><span class="roman">Function, </span>mv-mapping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-mv_002dselecting"><code><span class="roman">Function, </span>mv-selecting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-of_002dlength"><code><span class="roman">Function, </span>of-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-of_002dmax_002dlength"><code><span class="roman">Function, </span>of-max-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-of_002dmin_002dlength"><code><span class="roman">Function, </span>of-min-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-on"><code><span class="roman">Function, </span>on</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-over"><code><span class="roman">Function, </span>over</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-over-1"><code><span class="roman">Function, </span>over</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-pick"><code><span class="roman">Function, </span>pick</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-regex_002dmatch"><code><span class="roman">Function, </span>regex-match</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-repeating_002a"><code><span class="roman">Function, </span>repeating*</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-seq"><code><span class="roman">Function, </span>seq</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-set"><code><span class="roman">Function, </span>set</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-slice"><code><span class="roman">Function, </span>slice</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-sorted"><code><span class="roman">Function, </span>sorted</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-splice_002delt"><code><span class="roman">Function, </span>splice-elt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-splitting"><code><span class="roman">Function, </span>splitting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-suffixp"><code><span class="roman">Function, </span>suffixp</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-taking"><code><span class="roman">Function, </span>taking</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-transduce"><code><span class="roman">Function, </span>transduce</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-transform_002delt"><code><span class="roman">Function, </span>transform-elt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-transform_002dhead"><code><span class="roman">Function, </span>transform-head</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-transform_002dtail"><code><span class="roman">Function, </span>transform-tail</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-update"><code><span class="roman">Function, </span>update</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-view"><code><span class="roman">Function, </span>view</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-wrap_002dconstant"><code><span class="roman">Function, </span>wrap-constant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-Function_002c-wrap_002didentity"><code><span class="roman">Function, </span>wrap-identity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-Function_002c-zipping"><code><span class="roman">Function, </span>zipping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-functionalize"><code>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-functionalize-1"><code>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-functionalize-2"><code>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-functionalize-3"><code>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-functionalize-4"><code>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-G">G</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-clone"><code><span class="roman">Generic Function, </span>clone</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Generic-Function_002c-extract_002dkey"><code><span class="roman">Generic Function, </span>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html#Exported-generic-functions">Exported generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-fmap"><code><span class="roman">Generic Function, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-unconstant"><code><span class="roman">Generic Function, </span>unconstant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-unidentity"><code><span class="roman">Generic Function, </span>unidentity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-G">G</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-clone"><code><span class="roman">Generic Function, </span>clone</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Generic-Function_002c-extract_002dkey"><code><span class="roman">Generic Function, </span>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-fmap"><code><span class="roman">Generic Function, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Generic-Function_002c-functionalize"><code><span class="roman">Generic Function, </span>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Generic-Function_002c-init"><code><span class="roman">Generic Function, </span>init</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-next"><code><span class="roman">Generic Function, </span>next</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Generic-Function_002c-reduce_002dgeneric"><code><span class="roman">Generic Function, </span>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Generic-Function_002c-stepper"><code><span class="roman">Generic Function, </span>stepper</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-unconstant"><code><span class="roman">Generic Function, </span>unconstant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Generic-Function_002c-unidentity"><code><span class="roman">Generic Function, </span>unidentity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Generic-Function_002c-unwrap"><code><span class="roman">Generic Function, </span>unwrap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-I">I</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-include"><code>include</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-H">H</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-hash_002dtable_002dselect"><code>hash-table-select</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-J">J</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-juxt"><code>juxt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-I">I</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-include"><code>include</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-init"><code>init</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-init-1"><code>init</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-init-2"><code>init</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-init-3"><code>init</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-iota"><code>iota</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-K">K</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-key"><code>key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-key_002dtransform"><code>key-transform</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-J">J</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-juxt"><code>juxt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-L">L</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-let_002dfn"><code>let-fn</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
+<tr><th id="Function-index_fn_letter-K">K</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-key"><code>key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-key_002dtransform"><code>key-transform</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-M">M</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-_003c_003e1"><code><span class="roman">Macro, </span>&lt;&gt;1</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-applying"><code><span class="roman">Macro, </span>applying</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-defun_002dct"><code><span class="roman">Macro, </span>defun-ct</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-let_002dfn"><code><span class="roman">Macro, </span>let-fn</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-shortcut"><code><span class="roman">Macro, </span>shortcut</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-macros.html#index-Macro_002c-updatef"><code><span class="roman">Macro, </span>updatef</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html#Internal-macros">Internal macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-_2022"><code><span class="roman">Macro, </span>•</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-make_002dalist_002dhistory_002dlens"><code>make-alist-history-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-make_002dalist_002dlens"><code>make-alist-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-make_002dhash_002dtable_002dlens"><code>make-hash-table-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-make_002dlist_002dlens"><code>make-list-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-make_002dplist_002dlens"><code>make-plist-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-matching_002dlist_002dreducer"><code>matching-list-reducer</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-maximizing"><code>maximizing</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-clone"><code><span class="roman">Method, </span>clone</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-extract_002dkey"><code><span class="roman">Method, </span>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html#Exported-generic-functions">Exported generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-extract_002dkey-1"><code><span class="roman">Method, </span>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html#Exported-generic-functions">Exported generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-fmap"><code><span class="roman">Method, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-fmap-1"><code><span class="roman">Method, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-fmap-2"><code><span class="roman">Method, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-fmap-3"><code><span class="roman">Method, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-unconstant"><code><span class="roman">Method, </span>unconstant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-unidentity"><code><span class="roman">Method, </span>unidentity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-L">L</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-lazy_002dsequence"><code>lazy-sequence</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-let_002dfn"><code>let-fn</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-O">O</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-of_002dlength"><code>of-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-of_002dmax_002dlength"><code>of-max-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-of_002dmin_002dlength"><code>of-min-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-on"><code>on</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-over"><code>over</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-over-1"><code>over</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-M">M</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-_003c_003e1"><code><span class="roman">Macro, </span>&lt;&gt;1</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-applying"><code><span class="roman">Macro, </span>applying</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-macros.html#index-Macro_002c-comment"><code><span class="roman">Macro, </span>comment</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html">Internal macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-macros.html#index-Macro_002c-defdocumentation"><code><span class="roman">Macro, </span>defdocumentation</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html">Internal macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-defun_002dct"><code><span class="roman">Macro, </span>defun-ct</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-let_002dfn"><code><span class="roman">Macro, </span>let-fn</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-repeating"><code><span class="roman">Macro, </span>repeating</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-shortcut"><code><span class="roman">Macro, </span>shortcut</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-macros.html#index-Macro_002c-transducer_002dlambda"><code><span class="roman">Macro, </span>transducer-lambda</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html">Internal macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-macros.html#index-Macro_002c-updatef"><code><span class="roman">Macro, </span>updatef</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html">Internal macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-Macro_002c-_2022"><code><span class="roman">Macro, </span>•</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-make_002dalist_002dhistory_002dlens"><code>make-alist-history-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-make_002dalist_002dlens"><code>make-alist-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-make_002dhash_002dtable_002dlens"><code>make-hash-table-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-make_002dlist_002dlens"><code>make-list-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-make_002dplist_002dlens"><code>make-plist-lens</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-mapcatting"><code>mapcatting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-mapping"><code>mapping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-matching_002dlist_002dreducer"><code>matching-list-reducer</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-maximizing"><code>maximizing</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-clone"><code><span class="roman">Method, </span>clone</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-extract_002dkey"><code><span class="roman">Method, </span>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-extract_002dkey-1"><code><span class="roman">Method, </span>extract-key</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-fmap"><code><span class="roman">Method, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-fmap-1"><code><span class="roman">Method, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-fmap-2"><code><span class="roman">Method, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-fmap-3"><code><span class="roman">Method, </span>fmap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-functionalize"><code><span class="roman">Method, </span>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-functionalize-1"><code><span class="roman">Method, </span>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-functionalize-2"><code><span class="roman">Method, </span>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-functionalize-3"><code><span class="roman">Method, </span>functionalize</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-init"><code><span class="roman">Method, </span>init</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-init-1"><code><span class="roman">Method, </span>init</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-init-2"><code><span class="roman">Method, </span>init</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-next"><code><span class="roman">Method, </span>next</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-reduce_002dgeneric"><code><span class="roman">Method, </span>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-reduce_002dgeneric-1"><code><span class="roman">Method, </span>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-reduce_002dgeneric-2"><code><span class="roman">Method, </span>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-reduce_002dgeneric-3"><code><span class="roman">Method, </span>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-reduce_002dgeneric-4"><code><span class="roman">Method, </span>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-stepper"><code><span class="roman">Method, </span>stepper</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-stepper-1"><code><span class="roman">Method, </span>stepper</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-stepper-2"><code><span class="roman">Method, </span>stepper</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-unconstant"><code><span class="roman">Method, </span>unconstant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-Method_002c-unidentity"><code><span class="roman">Method, </span>unidentity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-unwrap"><code><span class="roman">Method, </span>unwrap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-Method_002c-unwrap-1"><code><span class="roman">Method, </span>unwrap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-mv_002dfiltering"><code>mv-filtering</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-mv_002dmapping"><code>mv-mapping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-mv_002dselecting"><code>mv-selecting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-P">P</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-pick"><code>pick</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-N">N</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-next"><code>next</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-next-1"><code>next</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-R">R</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-regex_002dmatch"><code>regex-match</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-O">O</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-of_002dlength"><code>of-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-of_002dmax_002dlength"><code>of-max-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-of_002dmin_002dlength"><code>of-min-length</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-on"><code>on</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-over"><code>over</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-over-1"><code>over</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-S">S</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-set"><code>set</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-macros.html#index-shortcut"><code>shortcut</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html#Exported-macros">Exported macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-slice"><code>slice</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-sorted"><code>sorted</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-splice_002delt"><code>splice-elt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-P">P</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-pick"><code>pick</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-T">T</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-transform_002delt"><code>transform-elt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-transform_002dhead"><code>transform-head</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-transform_002dtail"><code>transform-tail</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-R">R</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-reduce_002dgeneric"><code>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-reduce_002dgeneric-1"><code>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-reduce_002dgeneric-2"><code>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-reduce_002dgeneric-3"><code>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-reduce_002dgeneric-4"><code>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-reduce_002dgeneric-5"><code>reduce-generic</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-regex_002dmatch"><code>regex-match</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-repeating"><code>repeating</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-repeating_002a"><code>repeating*</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-U">U</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-unconstant"><code>unconstant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-unconstant-1"><code>unconstant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-unidentity"><code>unidentity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-unidentity-1"><code>unidentity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html#Internal-generic-functions">Internal generic functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-update"><code>update</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-macros.html#index-updatef"><code>updatef</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html#Internal-macros">Internal macros</a></td></tr>
+<tr><th id="Function-index_fn_letter-S">S</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-seq"><code>seq</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-set"><code>set</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-macros.html#index-shortcut"><code>shortcut</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-macros.html">Exported macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-slice"><code>slice</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-sorted"><code>sorted</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-splice_002delt"><code>splice-elt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-splitting"><code>splitting</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-stepper"><code>stepper</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-stepper-1"><code>stepper</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-stepper-2"><code>stepper</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-stepper-3"><code>stepper</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-suffixp"><code>suffixp</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-V">V</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-view"><code>view</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-T">T</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-taking"><code>taking</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-transduce"><code>transduce</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-macros.html#index-transducer_002dlambda"><code>transducer-lambda</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html">Internal macros</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-transform_002delt"><code>transform-elt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-transform_002dhead"><code>transform-head</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-transform_002dtail"><code>transform-tail</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-W">W</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-wrap_002dconstant"><code>wrap-constant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-functions.html#index-wrap_002didentity"><code>wrap-identity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html#Internal-functions">Internal functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-U">U</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-unconstant"><code>unconstant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-unconstant-1"><code>unconstant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-unidentity"><code>unidentity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-generic-functions.html#index-unidentity-1"><code>unidentity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-generic-functions.html">Internal generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-unwrap"><code>unwrap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-unwrap-1"><code>unwrap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-generic-functions.html#index-unwrap-2"><code>unwrap</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-generic-functions.html">Exported generic functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-update"><code>update</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-macros.html#index-updatef"><code>updatef</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-macros.html">Internal macros</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Function-index_fn_letter-Z">Z</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Exported-functions.html#index-zipping"><code>zipping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html#Exported-functions">Exported functions</a></td></tr>
+<tr><th id="Function-index_fn_letter-V">V</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-view"><code>view</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
+<tr><td colspan="4"> <hr></td></tr>
+<tr><th id="Function-index_fn_letter-W">W</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-wrap_002dconstant"><code>wrap-constant</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-functions.html#index-wrap_002didentity"><code>wrap-identity</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-functions.html">Internal functions</a></td></tr>
+<tr><td colspan="4"> <hr></td></tr>
+<tr><th id="Function-index_fn_letter-Z">Z</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-functions.html#index-zipping"><code>zipping</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-functions.html">Exported functions</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
 </table>
 <table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Function-index_fn_symbol-1"><b>&lt;</b></a>
@@ -303,6 +400,8 @@ Next: <a href="Variable-index.html#Variable-index" accesskey="n" rel="next">Vari
  &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-G"><b>G</b></a>
  &nbsp; 
+<a class="summary-letter" href="#Function-index_fn_letter-H"><b>H</b></a>
+ &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-I"><b>I</b></a>
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@@ -313,6 +412,8 @@ Next: <a href="Variable-index.html#Variable-index" accesskey="n" rel="next">Vari
  &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-M"><b>M</b></a>
  &nbsp; 
+<a class="summary-letter" href="#Function-index_fn_letter-N"><b>N</b></a>
+ &nbsp; 
 <a class="summary-letter" href="#Function-index_fn_letter-O"><b>O</b></a>
  &nbsp; 
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@@ -338,7 +439,7 @@ Next: <a href="Variable-index.html#Variable-index" accesskey="n" rel="next">Vari
 <hr>
 <div class="header">
 <p>
-Next: <a href="Variable-index.html#Variable-index" accesskey="n" rel="next">Variable index</a>, Previous: <a href="Concept-index.html#Concept-index" accesskey="p" rel="prev">Concept index</a>, Up: <a href="Indexes.html#Indexes" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Variable-index.html" accesskey="n" rel="next">Variable index</a>, Previous: <a href="Concept-index.html" accesskey="p" rel="prev">Concept index</a>, Up: <a href="Indexes.html" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 
 
diff --git a/docs/Indexes.html b/docs/Indexes.html
index 8eec832..b435e0a 100644
--- a/docs/Indexes.html
+++ b/docs/Indexes.html
@@ -1,42 +1,33 @@
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-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Indexes (The data-lens Reference Manual)</title>
+<title>Indexes (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Indexes (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Indexes (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
+<link href="index.html" rel="start" title="Top">
 <link href="#Indexes" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="index.html#Top" rel="up" title="Top">
-<link href="Concept-index.html#Concept-index" rel="next" title="Concept index">
-<link href="Internal-classes.html#Internal-classes" rel="prev" title="Internal classes">
+<link href="index.html" rel="up" title="Top">
+<link href="Concept-index.html" rel="next" title="Concept index">
+<link href="Internal-classes.html" rel="prev" title="Internal classes">
 <style type="text/css">
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@@ -48,22 +39,20 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Indexes"></a>
-<div class="header">
+<span id="Indexes"></span><div class="header">
 <p>
-Previous: <a href="Definitions.html#Definitions" accesskey="p" rel="prev">Definitions</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Indexes" title="Index" rel="index">Index</a>]</p>
+Previous: <a href="Definitions.html" accesskey="p" rel="prev">Definitions</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Indexes" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Indexes-1"></a>
-<h2 class="appendix">Appendix A Indexes</h2>
+<span id="Indexes-1"></span><h2 class="appendix">Appendix A Indexes</h2>
 <table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="Concept-index.html#Concept-index" accesskey="1">Concept index</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Concept-index.html" rel="index" accesskey="1">Concept index</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Function-index.html#Function-index" accesskey="2">Function index</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Function-index.html" rel="index" accesskey="2">Function index</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Variable-index.html#Variable-index" accesskey="3">Variable index</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Variable-index.html" rel="index" accesskey="3">Variable index</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Data-type-index.html#Data-type-index" accesskey="4">Data type index</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Data-type-index.html" rel="index" accesskey="4">Data type index</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
 </table>
 
diff --git a/docs/Internal-classes.html b/docs/Internal-classes.html
index dab7e37..1b5ee6e 100644
--- a/docs/Internal-classes.html
+++ b/docs/Internal-classes.html
@@ -1,42 +1,33 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Internal classes (The data-lens Reference Manual)</title>
+<title>Internal classes (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Internal classes (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Internal classes (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Internal-definitions.html#Internal-definitions" rel="up" title="Internal definitions">
-<link href="Indexes.html#Indexes" rel="next" title="Indexes">
-<link href="Internal-generic-functions.html#Internal-generic-functions" rel="prev" title="Internal generic functions">
+<link href="Internal-definitions.html" rel="up" title="Internal definitions">
+<link href="Indexes.html" rel="next" title="Indexes">
+<link href="Internal-generic-functions.html" rel="prev" title="Internal generic functions">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
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@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Internal-classes"></a>
-<div class="header">
+<span id="Internal-classes"></span><div class="header">
 <p>
-Previous: <a href="Internal-generic-functions.html#Internal-generic-functions" accesskey="p" rel="prev">Internal generic functions</a>, Up: <a href="Internal-definitions.html#Internal-definitions" accesskey="u" rel="up">Internal definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Previous: <a href="Internal-generic-functions.html" accesskey="p" rel="prev">Internal generic functions</a>, Up: <a href="Internal-definitions.html" accesskey="u" rel="up">Internal definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Classes"></a>
-<h4 class="subsection">4.2.4 Classes</h4>
+<span id="Classes-1"></span><h4 class="subsection">4.2.4 Classes</h4>
 <dl>
-<dt><a name="index-constant_002d"></a>Class: <strong>constant-</strong> <em>()</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236CONSTANT_002d-class"></a><a name="index-Class_002c-constant_002d"></a>
+<dt id="index-constant_002d">Class: <strong>constant-</strong> <em>()</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236CONSTANT_002d-class"></span><span id="index-Class_002c-constant_002d"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
@@ -78,8 +67,8 @@ Previous: <a href="Internal-generic-functions.html#Internal-generic-functions" a
 </dd>
 <dt><strong>Direct slots</strong></dt>
 <dd><dl>
-<dt><a name="index-_0025v"></a>Slot: <strong>%v</strong></dt>
-<dd><a name="index-Slot_002c-_0025v"></a>
+<dt id="index-_0025v">Slot: <strong>%v</strong></dt>
+<dd><span id="index-Slot_002c-_0025v"></span>
 <dl compact="compact">
 <dt><strong>Initargs</strong></dt>
 <dd><p><tt>:value</tt>
@@ -93,8 +82,8 @@ Previous: <a href="Internal-generic-functions.html#Internal-generic-functions" a
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-identity_002d"></a>Class: <strong>identity-</strong> <em>()</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236IDENTITY_002d-class"></a><a name="index-Class_002c-identity_002d"></a>
+<dt id="index-identity_002d">Class: <strong>identity-</strong> <em>()</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236IDENTITY_002d-class"></span><span id="index-Class_002c-identity_002d"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
@@ -114,8 +103,8 @@ Previous: <a href="Internal-generic-functions.html#Internal-generic-functions" a
 </dd>
 <dt><strong>Direct slots</strong></dt>
 <dd><dl>
-<dt><a name="index-_0025v-1"></a>Slot: <strong>%v</strong></dt>
-<dd><a name="index-Slot_002c-_0025v-1"></a>
+<dt id="index-_0025v-1">Slot: <strong>%v</strong></dt>
+<dd><span id="index-Slot_002c-_0025v-1"></span>
 <dl compact="compact">
 <dt><strong>Initargs</strong></dt>
 <dd><p><tt>:value</tt>
diff --git a/docs/Internal-definitions.html b/docs/Internal-definitions.html
index c0ab51b..0451702 100644
--- a/docs/Internal-definitions.html
+++ b/docs/Internal-definitions.html
@@ -1,42 +1,33 @@
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 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Internal definitions (The data-lens Reference Manual)</title>
+<title>Internal definitions (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Internal definitions (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Internal definitions (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Definitions.html#Definitions" rel="up" title="Definitions">
-<link href="Internal-macros.html#Internal-macros" rel="next" title="Internal macros">
-<link href="Exported-generic-functions.html#Exported-generic-functions" rel="prev" title="Exported generic functions">
+<link href="Definitions.html" rel="up" title="Definitions">
+<link href="Internal-macros.html" rel="next" title="Internal macros">
+<link href="Exported-classes.html" rel="prev" title="Exported classes">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
 blockquote.indentedblock {margin-right: 0em}
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@@ -48,22 +39,20 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Internal-definitions"></a>
-<div class="header">
+<span id="Internal-definitions"></span><div class="header">
 <p>
-Previous: <a href="Exported-definitions.html#Exported-definitions" accesskey="p" rel="prev">Exported definitions</a>, Up: <a href="Definitions.html#Definitions" accesskey="u" rel="up">Definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Previous: <a href="Exported-definitions.html" accesskey="p" rel="prev">Exported definitions</a>, Up: <a href="Definitions.html" accesskey="u" rel="up">Definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Internal-definitions-1"></a>
-<h3 class="section">4.2 Internal definitions</h3>
+<span id="Internal-definitions-1"></span><h3 class="section">4.2 Internal definitions</h3>
 <table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="Internal-macros.html#Internal-macros" accesskey="1">Internal macros</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Internal-macros.html" accesskey="1">Internal macros</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Internal-functions.html#Internal-functions" accesskey="2">Internal functions</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Internal-functions.html" accesskey="2">Internal functions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Internal-generic-functions.html#Internal-generic-functions" accesskey="3">Internal generic functions</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Internal-generic-functions.html" accesskey="3">Internal generic functions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Internal-classes.html#Internal-classes" accesskey="4">Internal classes</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Internal-classes.html" accesskey="4">Internal classes</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
 </table>
 
diff --git a/docs/Internal-functions.html b/docs/Internal-functions.html
index 4372700..9a75592 100644
--- a/docs/Internal-functions.html
+++ b/docs/Internal-functions.html
@@ -1,42 +1,33 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Internal functions (The data-lens Reference Manual)</title>
+<title>Internal functions (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Internal functions (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Internal functions (The data-lens/beta/transducers Reference Manual)">
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 <meta name="Generator" content="texi2any">
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+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Internal-definitions.html#Internal-definitions" rel="up" title="Internal definitions">
-<link href="Internal-generic-functions.html#Internal-generic-functions" rel="next" title="Internal generic functions">
-<link href="Internal-macros.html#Internal-macros" rel="prev" title="Internal macros">
+<link href="Internal-definitions.html" rel="up" title="Internal definitions">
+<link href="Internal-generic-functions.html" rel="next" title="Internal generic functions">
+<link href="Internal-macros.html" rel="prev" title="Internal macros">
 <style type="text/css">
 <!--
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 blockquote.indentedblock {margin-right: 0em}
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 span.sansserif {font-family: sans-serif; font-weight: normal}
@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Internal-functions"></a>
-<div class="header">
+<span id="Internal-functions"></span><div class="header">
 <p>
-Next: <a href="Internal-generic-functions.html#Internal-generic-functions" accesskey="n" rel="next">Internal generic functions</a>, Previous: <a href="Internal-macros.html#Internal-macros" accesskey="p" rel="prev">Internal macros</a>, Up: <a href="Internal-definitions.html#Internal-definitions" accesskey="u" rel="up">Internal definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Internal-generic-functions.html" accesskey="n" rel="next">Internal generic functions</a>, Previous: <a href="Internal-macros.html" accesskey="p" rel="prev">Internal macros</a>, Up: <a href="Internal-definitions.html" accesskey="u" rel="up">Internal definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Functions-1"></a>
-<h4 class="subsection">4.2.2 Functions</h4>
+<span id="Functions-1"></span><h4 class="subsection">4.2.2 Functions</h4>
 <dl>
-<dt><a name="index-_003d_003e_003e"></a>Function: <strong>=&gt;&gt;</strong> <em>FUN1 FUN2</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236_003d_003e_003e-function"></a><a name="index-Function_002c-_003d_003e_003e"></a>
+<dt id="index-_003d_003e_003e">Function: <strong>=&gt;&gt;</strong> <em>FUN1 FUN2</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236_003d_003e_003e-function"></span><span id="index-Function_002c-_003d_003e_003e"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -69,8 +58,8 @@ Next: <a href="Internal-generic-functions.html#Internal-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-cons_002dnew"></a>Function: <strong>cons-new</strong> <em>&amp;key TEST KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236CONS_002dNEW-function"></a><a name="index-Function_002c-cons_002dnew"></a>
+<dt id="index-cons_002dnew">Function: <strong>cons-new</strong> <em>&amp;key TEST KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236CONS_002dNEW-function"></span><span id="index-Function_002c-cons_002dnew"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -81,8 +70,8 @@ Next: <a href="Internal-generic-functions.html#Internal-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-deduplicate"></a>Function: <strong>deduplicate</strong> <em>&amp;optional TEST</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236DEDUPLICATE-function"></a><a name="index-Function_002c-deduplicate"></a>
+<dt id="index-deduplicate">Function: <strong>deduplicate</strong> <em>&amp;optional TEST</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236DEDUPLICATE-function"></span><span id="index-Function_002c-deduplicate"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -93,8 +82,20 @@ Next: <a href="Internal-generic-functions.html#Internal-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-filler"></a>Function: <strong>filler</strong> <em>LENGTH1 LENGTH2 FILL-VALUE</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236FILLER-function"></a><a name="index-Function_002c-filler"></a>
+<dt id="index-eduction">Function: <strong>eduction</strong> <em>XF SEQ</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236EDUCTION-function"></span><span id="index-Function_002c-eduction"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-filler">Function: <strong>filler</strong> <em>LENGTH1 LENGTH2 FILL-VALUE</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236FILLER-function"></span><span id="index-Function_002c-filler"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -105,8 +106,8 @@ Next: <a href="Internal-generic-functions.html#Internal-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-make_002dalist_002dhistory_002dlens"></a>Function: <strong>make-alist-history-lens</strong> <em>KEY</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dALIST_002dHISTORY_002dLENS-function"></a><a name="index-Function_002c-make_002dalist_002dhistory_002dlens"></a>
+<dt id="index-make_002dalist_002dhistory_002dlens">Function: <strong>make-alist-history-lens</strong> <em>KEY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236MAKE_002dALIST_002dHISTORY_002dLENS-function"></span><span id="index-Function_002c-make_002dalist_002dhistory_002dlens"></span>
 <p>A lens for updating a alist, preserving previous values
 </p><dl compact="compact">
 <dt><strong>Package</strong></dt>
@@ -118,8 +119,8 @@ Next: <a href="Internal-generic-functions.html#Internal-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-matching_002dlist_002dreducer"></a>Function: <strong>matching-list-reducer</strong> <em>TEST ACC NEXT</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236MATCHING_002dLIST_002dREDUCER-function"></a><a name="index-Function_002c-matching_002dlist_002dreducer"></a>
+<dt id="index-matching_002dlist_002dreducer">Function: <strong>matching-list-reducer</strong> <em>TEST ACC NEXT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236MATCHING_002dLIST_002dREDUCER-function"></span><span id="index-Function_002c-matching_002dlist_002dreducer"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -130,8 +131,20 @@ Next: <a href="Internal-generic-functions.html#Internal-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-update"></a>Function: <strong>update</strong> <em>THING FUN &amp;rest ARGS</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236UPDATE-function"></a><a name="index-Function_002c-update"></a>
+<dt id="index-seq">Function: <strong>seq</strong> <em>A B</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236SEQ-function"></span><span id="index-Function_002c-seq"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-update">Function: <strong>update</strong> <em>THING FUN &amp;rest ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236UPDATE-function"></span><span id="index-Function_002c-update"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
@@ -142,8 +155,8 @@ Next: <a href="Internal-generic-functions.html#Internal-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-wrap_002dconstant"></a>Function: <strong>wrap-constant</strong> <em>V</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236WRAP_002dCONSTANT-function"></a><a name="index-Function_002c-wrap_002dconstant"></a>
+<dt id="index-wrap_002dconstant">Function: <strong>wrap-constant</strong> <em>V</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236WRAP_002dCONSTANT-function"></span><span id="index-Function_002c-wrap_002dconstant"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
@@ -154,8 +167,8 @@ Next: <a href="Internal-generic-functions.html#Internal-generic-functions" acces
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-wrap_002didentity"></a>Function: <strong>wrap-identity</strong> <em>V</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236WRAP_002dIDENTITY-function"></a><a name="index-Function_002c-wrap_002didentity"></a>
+<dt id="index-wrap_002didentity">Function: <strong>wrap-identity</strong> <em>V</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236WRAP_002dIDENTITY-function"></span><span id="index-Function_002c-wrap_002didentity"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
diff --git a/docs/Internal-generic-functions.html b/docs/Internal-generic-functions.html
index 54518bb..9e5f025 100644
--- a/docs/Internal-generic-functions.html
+++ b/docs/Internal-generic-functions.html
@@ -1,42 +1,33 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Internal generic functions (The data-lens Reference Manual)</title>
+<title>Internal generic functions (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Internal generic functions (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Internal generic functions (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Internal-definitions.html#Internal-definitions" rel="up" title="Internal definitions">
-<link href="Internal-classes.html#Internal-classes" rel="next" title="Internal classes">
-<link href="Internal-functions.html#Internal-functions" rel="prev" title="Internal functions">
+<link href="Internal-definitions.html" rel="up" title="Internal definitions">
+<link href="Internal-classes.html" rel="next" title="Internal classes">
+<link href="Internal-functions.html" rel="prev" title="Internal functions">
 <style type="text/css">
 <!--
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 span.sansserif {font-family: sans-serif; font-weight: normal}
@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Internal-generic-functions"></a>
-<div class="header">
+<span id="Internal-generic-functions"></span><div class="header">
 <p>
-Next: <a href="Internal-classes.html#Internal-classes" accesskey="n" rel="next">Internal classes</a>, Previous: <a href="Internal-functions.html#Internal-functions" accesskey="p" rel="prev">Internal functions</a>, Up: <a href="Internal-definitions.html#Internal-definitions" accesskey="u" rel="up">Internal definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Internal-classes.html" accesskey="n" rel="next">Internal classes</a>, Previous: <a href="Internal-functions.html" accesskey="p" rel="prev">Internal functions</a>, Up: <a href="Internal-definitions.html" accesskey="u" rel="up">Internal definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Generic-functions-1"></a>
-<h4 class="subsection">4.2.3 Generic functions</h4>
+<span id="Generic-functions-1"></span><h4 class="subsection">4.2.3 Generic functions</h4>
 <dl>
-<dt><a name="index-clone"></a>Generic Function: <strong>clone</strong> <em>OBJ &amp;rest NEW-INITARGS &amp;key</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236CLONE-generic-function"></a><a name="index-Generic-Function_002c-clone"></a>
+<dt id="index-clone">Generic Function: <strong>clone</strong> <em>OBJ &amp;rest NEW-INITARGS &amp;key</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236CLONE-generic-function"></span><span id="index-Generic-Function_002c-clone"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
@@ -68,15 +57,15 @@ Next: <a href="Internal-classes.html#Internal-classes" accesskey="n" rel="next">
 </p></dd>
 <dt><strong>Methods</strong></dt>
 <dd><dl>
-<dt><a name="index-clone-1"></a>Method: <strong>clone</strong> <em>OBJ &amp;rest NEW-INITARGS &amp;key <tt>around</tt></em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236CLONE-COMMON_002dLISP_2236_2236T-AROUND-method"></a><a name="index-Method_002c-clone"></a>
+<dt id="index-clone-1">Method: <strong>clone</strong> <em>OBJ &amp;rest NEW-INITARGS &amp;key <tt>around</tt></em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236CLONE-COMMON_002dLISP_2236_2236T-AROUND-method"></span><span id="index-Method_002c-clone"></span>
 </dd></dl>
 </dd>
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-fmap"></a>Generic Function: <strong>fmap</strong> <em>FUNCTION DATA</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-generic-function"></a><a name="index-Generic-Function_002c-fmap"></a>
+<dt id="index-fmap">Generic Function: <strong>fmap</strong> <em>FUNCTION DATA</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-generic-function"></span><span id="index-Generic-Function_002c-fmap"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
@@ -86,35 +75,56 @@ Next: <a href="Internal-classes.html#Internal-classes" accesskey="n" rel="next">
 </p></dd>
 <dt><strong>Methods</strong></dt>
 <dd><dl>
-<dt><a name="index-fmap-1"></a>Method: <strong>fmap</strong> <em>FUNCTION (DATA <tt>identity-</tt>)</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-COMMON_002dLISP_2236_2236T-DATA_002dLENS_2024LENSES_2236_2236IDENTITY_002d-method"></a><a name="index-Method_002c-fmap"></a>
+<dt id="index-fmap-1">Method: <strong>fmap</strong> <em>FUNCTION (DATA <tt>identity-</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-COMMON_002dLISP_2236_2236T-DATA_002dLENS_2024LENSES_2236_2236IDENTITY_002d-method"></span><span id="index-Method_002c-fmap"></span>
 </dd></dl>
 <dl>
-<dt><a name="index-fmap-2"></a>Method: <strong>fmap</strong> <em>FUNCTION (DATA <tt>constant-</tt>)</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-COMMON_002dLISP_2236_2236T-DATA_002dLENS_2024LENSES_2236_2236CONSTANT_002d-method"></a><a name="index-Method_002c-fmap-1"></a>
+<dt id="index-fmap-2">Method: <strong>fmap</strong> <em>FUNCTION (DATA <tt>constant-</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-COMMON_002dLISP_2236_2236T-DATA_002dLENS_2024LENSES_2236_2236CONSTANT_002d-method"></span><span id="index-Method_002c-fmap-1"></span>
 </dd></dl>
 <dl>
-<dt><a name="index-fmap-3"></a>Method: <strong>fmap</strong> <em>FUNCTION (DATA <tt>list</tt>)</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236LIST-method"></a><a name="index-Method_002c-fmap-2"></a>
+<dt id="index-fmap-3">Method: <strong>fmap</strong> <em>FUNCTION (DATA <tt>list</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236LIST-method"></span><span id="index-Method_002c-fmap-2"></span>
 </dd></dl>
 <dl>
-<dt><a name="index-fmap-4"></a>Method: <strong>fmap</strong> <em>FUNCTION (DATA <tt>vector</tt>)</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236VECTOR-method"></a><a name="index-Method_002c-fmap-3"></a>
+<dt id="index-fmap-4">Method: <strong>fmap</strong> <em>FUNCTION (DATA <tt>vector</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236FMAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236VECTOR-method"></span><span id="index-Method_002c-fmap-3"></span>
 </dd></dl>
 </dd>
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-unconstant"></a>Generic Function: <strong>unconstant</strong> <em>OBJECT</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236UNCONSTANT-generic-function"></a><a name="index-Generic-Function_002c-unconstant"></a>
+<dt id="index-next">Generic Function: <strong>next</strong> <em>OBJECT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-generic-function"></span><span id="index-Generic-Function_002c-next"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Methods</strong></dt>
+<dd><dl>
+<dt id="index-next-1">Method: <strong>next</strong> <em>(LAZY-SEQUENCE <tt>lazy-sequence</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-method"></span><span id="index-Method_002c-next"></span>
+<p>automatically generated reader method
+</p><dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"><tt>lazy-sequence.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+</dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-unconstant">Generic Function: <strong>unconstant</strong> <em>OBJECT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236UNCONSTANT-generic-function"></span><span id="index-Generic-Function_002c-unconstant"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
 </p></dd>
 <dt><strong>Methods</strong></dt>
 <dd><dl>
-<dt><a name="index-unconstant-1"></a>Method: <strong>unconstant</strong> <em>(CONSTANT- <tt>constant-</tt>)</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236UNCONSTANT-DATA_002dLENS_2024LENSES_2236_2236CONSTANT_002d-method"></a><a name="index-Method_002c-unconstant"></a>
+<dt id="index-unconstant-1">Method: <strong>unconstant</strong> <em>(CONSTANT- <tt>constant-</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236UNCONSTANT-DATA_002dLENS_2024LENSES_2236_2236CONSTANT_002d-method"></span><span id="index-Method_002c-unconstant"></span>
 <p>automatically generated reader method
 </p><dl compact="compact">
 <dt><strong>Source</strong></dt>
@@ -126,16 +136,16 @@ Next: <a href="Internal-classes.html#Internal-classes" accesskey="n" rel="next">
 </dl>
 </dd></dl>
 <dl>
-<dt><a name="index-unidentity"></a>Generic Function: <strong>unidentity</strong> <em>OBJECT</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236UNIDENTITY-generic-function"></a><a name="index-Generic-Function_002c-unidentity"></a>
+<dt id="index-unidentity">Generic Function: <strong>unidentity</strong> <em>OBJECT</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236UNIDENTITY-generic-function"></span><span id="index-Generic-Function_002c-unidentity"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
 </p></dd>
 <dt><strong>Methods</strong></dt>
 <dd><dl>
-<dt><a name="index-unidentity-1"></a>Method: <strong>unidentity</strong> <em>(IDENTITY- <tt>identity-</tt>)</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2024LENSES_2236_2236UNIDENTITY-DATA_002dLENS_2024LENSES_2236_2236IDENTITY_002d-method"></a><a name="index-Method_002c-unidentity"></a>
+<dt id="index-unidentity-1">Method: <strong>unidentity</strong> <em>(IDENTITY- <tt>identity-</tt>)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024LENSES_2236_2236UNIDENTITY-DATA_002dLENS_2024LENSES_2236_2236IDENTITY_002d-method"></span><span id="index-Method_002c-unidentity"></span>
 <p>automatically generated reader method
 </p><dl compact="compact">
 <dt><strong>Source</strong></dt>
diff --git a/docs/Internal-macros.html b/docs/Internal-macros.html
index 4072511..5d6556b 100644
--- a/docs/Internal-macros.html
+++ b/docs/Internal-macros.html
@@ -1,42 +1,33 @@
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 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Internal macros (The data-lens Reference Manual)</title>
+<title>Internal macros (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Internal macros (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Internal macros (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Internal-definitions.html#Internal-definitions" rel="up" title="Internal definitions">
-<link href="Internal-functions.html#Internal-functions" rel="next" title="Internal functions">
-<link href="Internal-definitions.html#Internal-definitions" rel="prev" title="Internal definitions">
+<link href="Internal-definitions.html" rel="up" title="Internal definitions">
+<link href="Internal-functions.html" rel="next" title="Internal functions">
+<link href="Internal-definitions.html" rel="prev" title="Internal definitions">
 <style type="text/css">
 <!--
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 blockquote.indentedblock {margin-right: 0em}
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 span.roman {font-family: initial; font-weight: normal}
 span.sansserif {font-family: sans-serif; font-weight: normal}
@@ -48,17 +39,51 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Internal-macros"></a>
-<div class="header">
+<span id="Internal-macros"></span><div class="header">
 <p>
-Next: <a href="Internal-functions.html#Internal-functions" accesskey="n" rel="next">Internal functions</a>, Previous: <a href="Internal-definitions.html#Internal-definitions" accesskey="p" rel="prev">Internal definitions</a>, Up: <a href="Internal-definitions.html#Internal-definitions" accesskey="u" rel="up">Internal definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Internal-functions.html" accesskey="n" rel="next">Internal functions</a>, Previous: <a href="Internal-definitions.html" accesskey="p" rel="prev">Internal definitions</a>, Up: <a href="Internal-definitions.html" accesskey="u" rel="up">Internal definitions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Macros-1"></a>
-<h4 class="subsection">4.2.1 Macros</h4>
+<span id="Macros-1"></span><h4 class="subsection">4.2.1 Macros</h4>
 <dl>
-<dt><a name="index-updatef"></a>Macro: <strong>updatef</strong> <em>PLACE FUN &amp;rest ARGS</em></dt>
-<dd><a name="go-to-the-DATA_002dLENS_2236_2236UPDATEF-macro"></a><a name="index-Macro_002c-updatef"></a>
+<dt id="index-comment">Macro: <strong>comment</strong> <em>&amp;body BODY</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMMENT-macro"></span><span id="index-Macro_002c-comment"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-defdocumentation">Macro: <strong>defdocumentation</strong> <em>NAME &amp;body DOC-SPECS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236DEFDOCUMENTATION-macro"></span><span id="index-Macro_002c-defdocumentation"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-transducer_002dlambda">Macro: <strong>transducer-lambda</strong> <em>&amp;body ((TWO-ARG-ACC TWO-ARG-NEXT) &amp;body TWO-ARG-BODY)</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236TRANSDUCER_002dLAMBDA-macro"></span><span id="index-Macro_002c-transducer_002dlambda"></span>
+<dl compact="compact">
+<dt><strong>Package</strong></dt>
+<dd><p><a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</p></dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+</dl>
+</dd></dl>
+<dl>
+<dt id="index-updatef">Macro: <strong>updatef</strong> <em>PLACE FUN &amp;rest ARGS</em></dt>
+<dd><span id="go-to-the-DATA_002dLENS_2236_2236UPDATEF-macro"></span><span id="index-Macro_002c-updatef"></span>
 <dl compact="compact">
 <dt><strong>Package</strong></dt>
 <dd><p><a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
diff --git a/docs/Lisp-files.html b/docs/Lisp-files.html
index e7d0ebc..1decea7 100644
--- a/docs/Lisp-files.html
+++ b/docs/Lisp-files.html
@@ -1,42 +1,33 @@
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-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Lisp files (The data-lens Reference Manual)</title>
+<title>Lisp files (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Lisp files (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Lisp files (The data-lens/beta/transducers Reference Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Files.html#Files" rel="up" title="Files">
-<link href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file" rel="next" title="The data-lens․asd file">
-<link href="Files.html#Files" rel="prev" title="Files">
+<link href="Files.html" rel="up" title="Files">
+<link href="The-data_002dlens_002easd-file.html" rel="next" title="The data-lens․asd file">
+<link href="Files.html" rel="prev" title="Files">
 <style type="text/css">
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@@ -48,22 +39,28 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Lisp-files"></a>
-<div class="header">
+<span id="Lisp-files"></span><div class="header">
 <p>
-Previous: <a href="Files.html#Files" accesskey="p" rel="prev">Files</a>, Up: <a href="Files.html#Files" accesskey="u" rel="up">Files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Previous: <a href="Files.html" accesskey="p" rel="prev">Files</a>, Up: <a href="Files.html" accesskey="u" rel="up">Files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Lisp"></a>
-<h3 class="section">2.1 Lisp</h3>
+<span id="Lisp"></span><h3 class="section">2.1 Lisp</h3>
 <table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file" accesskey="1">The data-lens.asd file</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002easd-file.html" accesskey="1">The data-lens.asd file</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file" accesskey="2">The data-lens/package.lisp file</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html" accesskey="2">The data-lens/beta/transducers/package.lisp file</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file" accesskey="3">The data-lens/optics.lisp file</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html" accesskey="3">The data-lens/beta/transducers/transducer-protocol.lisp file</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file" accesskey="4">The data-lens/lens.lisp file</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html" accesskey="4">The data-lens/beta/transducers/transducers.lisp file</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html" accesskey="5">The data-lens/beta/transducers/lazy-sequence.lisp file</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002fpackage_002elisp-file.html" accesskey="6">The data-lens/package.lisp file</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002foptics_002elisp-file.html" accesskey="7">The data-lens/optics.lisp file</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002flens_002elisp-file.html" accesskey="8">The data-lens/lens.lisp file</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
 </table>
 
diff --git a/docs/Packages.html b/docs/Packages.html
index 2f9d984..2aca3c4 100644
--- a/docs/Packages.html
+++ b/docs/Packages.html
@@ -1,42 +1,33 @@
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+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Packages (The data-lens Reference Manual)</title>
+<title>Packages (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Packages (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Packages (The data-lens/beta/transducers Reference Manual)">
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-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="index.html#Top" rel="up" title="Top">
-<link href="The-data_002dlens-package.html#The-data_002dlens-package" rel="next" title="The data-lens package">
-<link href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file" rel="prev" title="The data-lens/lens․lisp file">
+<link href="index.html" rel="up" title="Top">
+<link href="The-data_002dlens-package.html" rel="next" title="The data-lens package">
+<link href="The-data_002dlens_002flens_002elisp-file.html" rel="prev" title="The data-lens/lens․lisp file">
 <style type="text/css">
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@@ -48,22 +39,24 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Packages"></a>
-<div class="header">
+<span id="Packages"></span><div class="header">
 <p>
-Next: <a href="Definitions.html#Definitions" accesskey="n" rel="next">Definitions</a>, Previous: <a href="Files.html#Files" accesskey="p" rel="prev">Files</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Definitions.html" accesskey="n" rel="next">Definitions</a>, Previous: <a href="Files.html" accesskey="p" rel="prev">Files</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Packages-1"></a>
-<h2 class="chapter">3 Packages</h2>
+<span id="Packages-1"></span><h2 class="chapter">3 Packages</h2>
 <p>Packages are listed by definition order.
 </p>
 <table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens-package.html#The-data_002dlens-package" accesskey="1">The data-lens package</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens-package.html" accesskey="1">The data-lens package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024package-package" accesskey="2">The data-lens.package package</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002etransducers-package.html" accesskey="2">The data-lens.transducers package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002elenses-package.html#The-data_002dlens_2024lenses-package" accesskey="3">The data-lens.lenses package</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002epackage-package.html" accesskey="3">The data-lens.package package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002elenses-package.html" accesskey="4">The data-lens.lenses package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002etransducers_002einternals-package.html" accesskey="5">The data-lens.transducers.internals package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
 </table>
 
diff --git a/docs/Systems.html b/docs/Systems.html
index bfc339b..e1233ea 100644
--- a/docs/Systems.html
+++ b/docs/Systems.html
@@ -1,42 +1,33 @@
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+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Systems (The data-lens Reference Manual)</title>
+<title>Systems (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Systems (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Systems (The data-lens/beta/transducers Reference Manual)">
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-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
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-<link href="index.html#Top" rel="up" title="Top">
-<link href="The-data_002dlens-system.html#The-data_002dlens-system" rel="next" title="The data-lens system">
-<link href="index.html#Top" rel="prev" title="Top">
+<link href="index.html" rel="up" title="Top">
+<link href="The-data_002dlens_002fbeta_002ftransducers-system.html" rel="next" title="The data-lens/beta/transducers system">
+<link href="index.html" rel="prev" title="Top">
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@@ -48,18 +39,18 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Systems"></a>
-<div class="header">
+<span id="Systems"></span><div class="header">
 <p>
-Next: <a href="Files.html#Files" accesskey="n" rel="next">Files</a>, Previous: <a href="index.html#Top" accesskey="p" rel="prev">Top</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Files.html" accesskey="n" rel="next">Files</a>, Previous: <a href="index.html" accesskey="p" rel="prev">Top</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Systems-1"></a>
-<h2 class="chapter">1 Systems</h2>
+<span id="Systems-1"></span><h2 class="chapter">1 Systems</h2>
 <p>The main system appears first, followed by any subsystem dependency.
 </p>
 <table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens-system.html#The-data_002dlens-system" accesskey="1">The data-lens system</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens_002fbeta_002ftransducers-system.html" accesskey="1">The data-lens/beta/transducers system</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="The-data_002dlens-system.html" accesskey="2">The data-lens system</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
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diff --git a/docs/The-data_002dlens-package.html b/docs/The-data_002dlens-package.html
index b9ed565..8982921 100644
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+<title>The data-lens package (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="The data-lens package (The data-lens Reference Manual)">
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-<link href="Packages.html#Packages" rel="prev" title="Packages">
+<link href="Packages.html" rel="up" title="Packages">
+<link href="The-data_002dlens_002etransducers-package.html" rel="next" title="The data-lens․transducers package">
+<link href="Packages.html" rel="prev" title="Packages">
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-<a name="The-data_002dlens-package"></a>
-<div class="header">
+<span id="The-data_002dlens-package"></span><div class="header">
 <p>
-Next: <a href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024package-package" accesskey="n" rel="next">The data-lens․package package</a>, Previous: <a href="Packages.html#Packages" accesskey="p" rel="prev">Packages</a>, Up: <a href="Packages.html#Packages" accesskey="u" rel="up">Packages</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="The-data_002dlens_002etransducers-package.html" accesskey="n" rel="next">The data-lens․transducers package</a>, Previous: <a href="Packages.html" accesskey="p" rel="prev">Packages</a>, Up: <a href="Packages.html" accesskey="u" rel="up">Packages</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="data_002dlens-1"></a>
-<h3 class="section">3.1 <tt>data-lens</tt></h3>
-<a name="go-to-the-DATA_002dLENS-package"></a><a name="index-data_002dlens-1"></a>
-<a name="index-Package_002c-data_002dlens"></a>
+<span id="data_002dlens-1"></span><h3 class="section">3.1 <tt>data-lens</tt></h3>
+<span id="go-to-the-DATA_002dLENS-package"></span><span id="index-data_002dlens-1"></span>
+<span id="index-Package_002c-data_002dlens"></span>
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 <dt><strong>Source</strong></dt>
-<dd><p><a href="The-data_002dlens_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
 </p></dd>
 <dt><strong>Use List</strong></dt>
 <dd><p><tt>common-lisp</tt>
@@ -82,6 +71,11 @@ Next: <a href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024
 </li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-generic-function"><tt>extract-key</tt></a> (generic function)
 </li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-COMMON_002dLISP_2236_2236HASH_002dTABLE-COMMON_002dLISP_2236_2236T-method"><tt>extract-key</tt></a> (method)
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+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-generic-function"><tt>functionalize</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236HASH_002dTABLE-method"><tt>functionalize</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236VECTOR-method"><tt>functionalize</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236SYMBOL-method"><tt>functionalize</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236FUNCTION-method"><tt>functionalize</tt></a> (method)
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 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236JUXT-function"><tt>juxt</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236KEY-function"><tt>key</tt></a> (function)
@@ -99,6 +93,7 @@ Next: <a href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024
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 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236SPLICE_002dELT-function"><tt>splice-elt</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236SUFFIXP-function"><tt>suffixp</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dELT-function"><tt>transform-elt</tt></a> (function)
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diff --git a/docs/The-data_002dlens-system.html b/docs/The-data_002dlens-system.html
index ede0049..311bc3e 100644
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+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
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 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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+<title>The data-lens system (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="The data-lens system (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
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+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Systems.html#Systems" rel="up" title="Systems">
-<link href="Files.html#Files" rel="next" title="Files">
-<link href="Systems.html#Systems" rel="prev" title="Systems">
+<link href="Systems.html" rel="up" title="Systems">
+<link href="Files.html" rel="next" title="Files">
+<link href="The-data_002dlens_002fbeta_002ftransducers-system.html" rel="prev" title="The data-lens/beta/transducers system">
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@@ -48,16 +39,14 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="The-data_002dlens-system"></a>
-<div class="header">
+<span id="The-data_002dlens-system"></span><div class="header">
 <p>
-Previous: <a href="Systems.html#Systems" accesskey="p" rel="prev">Systems</a>, Up: <a href="Systems.html#Systems" accesskey="u" rel="up">Systems</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Previous: <a href="The-data_002dlens_002fbeta_002ftransducers-system.html" accesskey="p" rel="prev">The data-lens/beta/transducers system</a>, Up: <a href="Systems.html" accesskey="u" rel="up">Systems</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="data_002dlens"></a>
-<h3 class="section">1.1 <tt>data-lens</tt></h3>
-<a name="go-to-the-data_002dlens-system"></a><a name="index-data_002dlens"></a>
-<a name="index-System_002c-data_002dlens"></a>
+<span id="data_002dlens"></span><h3 class="section">1.2 <tt>data-lens</tt></h3>
+<span id="go-to-the-data_002dlens-system"></span><span id="index-data_002dlens"></span>
+<span id="index-System_002c-data_002dlens"></span>
 <dl compact="compact">
 <dt><strong>Author</strong></dt>
 <dd><p>Edward Langley &lt;<a href="mailto:el-cl@elangley.org">el-cl@elangley.org</a>&gt;
@@ -66,7 +55,7 @@ Previous: <a href="Systems.html#Systems" accesskey="p" rel="prev">Systems</a>, U
 <dd><p>MIT
 </p></dd>
 <dt><strong>Description</strong></dt>
-<dd><p>Utilities for building data transormations from composable functions, modeled on lenses and transducers
+<dd><p>Utilities for building data transformations from composable functions, modeled on lenses and transducers
 </p></dd>
 <dt><strong>Dependencies</strong></dt>
 <dd><ul>
diff --git a/docs/The-data_002dlens_002easd-file.html b/docs/The-data_002dlens_002easd-file.html
index bac1e38..dff1851 100644
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-<title>The data-lens․asd file (The data-lens Reference Manual)</title>
+<title>The data-lens․asd file (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="The data-lens․asd file (The data-lens Reference Manual)">
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-<link href="Lisp-files.html#Lisp-files" rel="up" title="Lisp files">
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-<link href="Lisp-files.html#Lisp-files" rel="prev" title="Lisp files">
+<link href="Lisp-files.html" rel="up" title="Lisp files">
+<link href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html" rel="next" title="The data-lens/beta/transducers/package․lisp file">
+<link href="Lisp-files.html" rel="prev" title="Lisp files">
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-<a name="The-data_002dlens_2024asd-file"></a>
-<div class="header">
+<span id="The-data_002dlens_2024asd-file"></span><div class="header">
 <p>
-Next: <a href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file" accesskey="n" rel="next">The data-lens/package․lisp file</a>, Previous: <a href="Lisp-files.html#Lisp-files" accesskey="p" rel="prev">Lisp files</a>, Up: <a href="Lisp-files.html#Lisp-files" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html" accesskey="n" rel="next">The data-lens/beta/transducers/package․lisp file</a>, Previous: <a href="Lisp-files.html" accesskey="p" rel="prev">Lisp files</a>, Up: <a href="Lisp-files.html" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="data_002dlens_002easd"></a>
-<h4 class="subsection">2.1.1 <tt>data-lens.asd</tt></h4>
-<a name="go-to-the-data_002dlens_2024asd-file"></a><a name="index-data_002dlens_002easd"></a>
-<a name="index-Lisp-File_002c-data_002dlens_002easd"></a>
-<a name="index-File_002c-Lisp_002c-data_002dlens_002easd"></a>
+<span id="data_002dlens_002easd"></span><h4 class="subsection">2.1.1 <tt>data-lens.asd</tt></h4>
+<span id="go-to-the-data_002dlens_2024asd-file"></span><span id="index-data_002dlens_002easd"></span>
+<span id="index-Lisp-File_002c-data_002dlens_002easd"></span>
+<span id="index-File_002c-Lisp_002c-data_002dlens_002easd"></span>
 <dl compact="compact">
 <dt><strong>Location</strong></dt>
 <dd><p><tt>data-lens.asd</tt>
 </p></dd>
 <dt><strong>Systems</strong></dt>
-<dd><p><a href="The-data_002dlens-system.html#go-to-the-data_002dlens-system"><tt>data-lens</tt></a> (system)
-</p></dd>
+<dd><ul>
+<li> <a href="The-data_002dlens_002fbeta_002ftransducers-system.html#go-to-the-data_002dlens_002fbeta_002ftransducers-system"><tt>data-lens/beta/transducers</tt></a> (system)
+</li><li> <a href="The-data_002dlens-system.html#go-to-the-data_002dlens-system"><tt>data-lens</tt></a> (system)
+</li></ul>
+</dd>
 </dl>
 
 
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index c12c4ed..0689ae0 100644
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-<title>The data-lens․lenses package (The data-lens Reference Manual)</title>
+<title>The data-lens․lenses package (The data-lens/beta/transducers Reference Manual)</title>
 
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-<meta name="keywords" content="The data-lens․lenses package (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
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+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Packages.html#Packages" rel="up" title="Packages">
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-<link href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024package-package" rel="prev" title="The data-lens․package package">
+<link href="Packages.html" rel="up" title="Packages">
+<link href="The-data_002dlens_002etransducers_002einternals-package.html" rel="next" title="The data-lens․transducers․internals package">
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 <p>
-Previous: <a href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024package-package" accesskey="p" rel="prev">The data-lens․package package</a>, Up: <a href="Packages.html#Packages" accesskey="u" rel="up">Packages</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="The-data_002dlens_002etransducers_002einternals-package.html" accesskey="n" rel="next">The data-lens․transducers․internals package</a>, Previous: <a href="The-data_002dlens_002epackage-package.html" accesskey="p" rel="prev">The data-lens․package package</a>, Up: <a href="Packages.html" accesskey="u" rel="up">Packages</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
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-<a name="index-Package_002c-data_002dlens_002elenses"></a>
+<span id="data_002dlens_002elenses"></span><h3 class="section">3.4 <tt>data-lens.lenses</tt></h3>
+<span id="go-to-the-DATA_002dLENS_2024LENSES-package"></span><span id="index-data_002dlens_002elenses"></span>
+<span id="index-Package_002c-data_002dlens_002elenses"></span>
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-<dd><p><a href="The-data_002dlens_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
 </p></dd>
 <dt><strong>Use List</strong></dt>
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@@ -102,6 +91,5 @@ Previous: <a href="The-data_002dlens_002epackage-package.html#The-data_002dlens_
 
 
 
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-<title>The data-lens․package package (The data-lens Reference Manual)</title>
+<title>The data-lens․package package (The data-lens/beta/transducers Reference Manual)</title>
 
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+<link href="Indexes.html" rel="index" title="Indexes">
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-<link href="Packages.html#Packages" rel="up" title="Packages">
-<link href="The-data_002dlens_002elenses-package.html#The-data_002dlens_2024lenses-package" rel="next" title="The data-lens․lenses package">
-<link href="The-data_002dlens-package.html#The-data_002dlens-package" rel="prev" title="The data-lens package">
+<link href="Packages.html" rel="up" title="Packages">
+<link href="The-data_002dlens_002elenses-package.html" rel="next" title="The data-lens․lenses package">
+<link href="The-data_002dlens_002etransducers-package.html" rel="prev" title="The data-lens․transducers package">
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-<a name="The-data_002dlens_2024package-package"></a>
-<div class="header">
+<span id="The-data_002dlens_2024package-package"></span><div class="header">
 <p>
-Next: <a href="The-data_002dlens_002elenses-package.html#The-data_002dlens_2024lenses-package" accesskey="n" rel="next">The data-lens․lenses package</a>, Previous: <a href="The-data_002dlens-package.html#The-data_002dlens-package" accesskey="p" rel="prev">The data-lens package</a>, Up: <a href="Packages.html#Packages" accesskey="u" rel="up">Packages</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="The-data_002dlens_002elenses-package.html" accesskey="n" rel="next">The data-lens․lenses package</a>, Previous: <a href="The-data_002dlens_002etransducers-package.html" accesskey="p" rel="prev">The data-lens․transducers package</a>, Up: <a href="Packages.html" accesskey="u" rel="up">Packages</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="data_002dlens_002epackage"></a>
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-<a name="go-to-the-DATA_002dLENS_2024PACKAGE-package"></a><a name="index-data_002dlens_002epackage"></a>
-<a name="index-Package_002c-data_002dlens_002epackage"></a>
+<span id="data_002dlens_002epackage"></span><h3 class="section">3.3 <tt>data-lens.package</tt></h3>
+<span id="go-to-the-DATA_002dLENS_2024PACKAGE-package"></span><span id="index-data_002dlens_002epackage"></span>
+<span id="index-Package_002c-data_002dlens_002epackage"></span>
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-<dd><p><a href="The-data_002dlens_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
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diff --git a/docs/The-data_002dlens_002etransducers-package.html b/docs/The-data_002dlens_002etransducers-package.html
new file mode 100644
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+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>The data-lens․transducers package (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens․transducers package (The data-lens/beta/transducers Reference Manual)">
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+<meta name="Generator" content="texi2any">
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+<link href="Indexes.html" rel="index" title="Indexes">
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+<link href="Packages.html" rel="up" title="Packages">
+<link href="The-data_002dlens_002epackage-package.html" rel="next" title="The data-lens․package package">
+<link href="The-data_002dlens-package.html" rel="prev" title="The data-lens package">
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+</style>
+
+
+</head>
+
+<body lang="en">
+<span id="The-data_002dlens_2024transducers-package"></span><div class="header">
+<p>
+Next: <a href="The-data_002dlens_002epackage-package.html" accesskey="n" rel="next">The data-lens․package package</a>, Previous: <a href="The-data_002dlens-package.html" accesskey="p" rel="prev">The data-lens package</a>, Up: <a href="Packages.html" accesskey="u" rel="up">Packages</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<span id="data_002dlens_002etransducers"></span><h3 class="section">3.2 <tt>data-lens.transducers</tt></h3>
+<span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"></span><span id="index-data_002dlens_002etransducers"></span>
+<span id="index-Package_002c-data_002dlens_002etransducers"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Use List</strong></dt>
+<dd><p><tt>common-lisp</tt>
+</p></dd>
+<dt><strong>Exported Definitions</strong></dt>
+<dd><ul>
+<li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236CATTING-function"><tt>catting</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COLLECTING-function"><tt>collecting</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMPRESSING_002dRUNS-function"><tt>compressing-runs</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DEDUPING-function"><tt>deduping</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DROPPING-function"><tt>dropping</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236FILTERING-function"><tt>filtering</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dSELECT-function"><tt>hash-table-select</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236IOTA-function"><tt>iota</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-function"><tt>lazy-sequence</tt></a> (function)
+</li><li> <a href="Exported-classes.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-class"><tt>lazy-sequence</tt></a> (class)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPCATTING-function"><tt>mapcatting</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPPING-function"><tt>mapping</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dFILTERING-function"><tt>mv-filtering</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dMAPPING-function"><tt>mv-mapping</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dSELECTING-function"><tt>mv-selecting</tt></a> (function)
+</li><li> <a href="Exported-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING-macro"><tt>repeating</tt></a> (macro)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING_002a-function"><tt>repeating*</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236SPLITTING-function"><tt>splitting</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236TAKING-function"><tt>taking</tt></a> (function)
+</li></ul>
+</dd>
+<dt><strong>Internal Definitions</strong></dt>
+<dd><ul>
+<li> <a href="Internal-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMMENT-macro"><tt>comment</tt></a> (macro)
+</li><li> <a href="Internal-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236EDUCTION-function"><tt>eduction</tt></a> (function)
+</li><li> <a href="Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-generic-function"><tt>next</tt></a> (generic function)
+</li><li> <a href="Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-method"><tt>next</tt></a> (method)
+</li><li> <a href="Internal-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236SEQ-function"><tt>seq</tt></a> (function)
+</li><li> <a href="Internal-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236TRANSDUCER_002dLAMBDA-macro"><tt>transducer-lambda</tt></a> (macro)
+</li></ul>
+</dd>
+</dl>
+
+
+
+
+
+</body>
+</html>
diff --git a/docs/The-data_002dlens_002etransducers_002einternals-package.html b/docs/The-data_002dlens_002etransducers_002einternals-package.html
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index 0000000..4fdc832
--- /dev/null
+++ b/docs/The-data_002dlens_002etransducers_002einternals-package.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>The data-lens․transducers․internals package (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens․transducers․internals package (The data-lens/beta/transducers Reference Manual)">
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+<link href="Packages.html" rel="up" title="Packages">
+<link href="Definitions.html" rel="next" title="Definitions">
+<link href="The-data_002dlens_002elenses-package.html" rel="prev" title="The data-lens․lenses package">
+<style type="text/css">
+<!--
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+blockquote.indentedblock {margin-right: 0em}
+div.display {margin-left: 3.2em}
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+div.lisp {margin-left: 3.2em}
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+pre.format {font-family: inherit}
+pre.menu-comment {font-family: serif}
+pre.menu-preformatted {font-family: serif}
+span.nolinebreak {white-space: nowrap}
+span.roman {font-family: initial; font-weight: normal}
+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+
+</head>
+
+<body lang="en">
+<span id="The-data_002dlens_2024transducers_2024internals-package"></span><div class="header">
+<p>
+Previous: <a href="The-data_002dlens_002elenses-package.html" accesskey="p" rel="prev">The data-lens․lenses package</a>, Up: <a href="Packages.html" accesskey="u" rel="up">Packages</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<span id="data_002dlens_002etransducers_002einternals"></span><h3 class="section">3.5 <tt>data-lens.transducers.internals</tt></h3>
+<span id="go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"></span><span id="index-data_002dlens_002etransducers_002einternals"></span>
+<span id="index-Package_002c-data_002dlens_002etransducers_002einternals"></span>
+<dl compact="compact">
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Use List</strong></dt>
+<dd><p><tt>common-lisp</tt>
+</p></dd>
+<dt><strong>Exported Definitions</strong></dt>
+<dd><ul>
+<li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236EXIT_002dEARLY-function"><tt>exit-early</tt></a> (function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-generic-function"><tt>init</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-method"><tt>init</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236VECTOR_002dBUILDER_2769-method"><tt>init</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dBUILDER_2769-method"><tt>init</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-generic-function"><tt>reduce-generic</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236SEQUENCE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236SEQUENCE-COMMON_002dLISP_2236_2236SYMBOL-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236SYMBOL-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236HASH_002dTABLE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-generic-function"><tt>stepper</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-method"><tt>stepper</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236VECTOR_002dBUILDER_2769-method"><tt>stepper</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dBUILDER_2769-method"><tt>stepper</tt></a> (method)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236TRANSDUCE-function"><tt>transduce</tt></a> (function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-generic-function"><tt>unwrap</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-COMMON_002dLISP_2236_2236T-method"><tt>unwrap</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236T-method"><tt>unwrap</tt></a> (method)
+</li></ul>
+</dd>
+<dt><strong>Internal Definitions</strong></dt>
+<dd><p><a href="Internal-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236DEFDOCUMENTATION-macro"><tt>defdocumentation</tt></a> (macro)
+</p></dd>
+</dl>
+
+
+
+
+
+
+</body>
+</html>
diff --git a/docs/The-data_002dlens_002fbeta_002ftransducers-system.html b/docs/The-data_002dlens_002fbeta_002ftransducers-system.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>The data-lens/beta/transducers system (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens/beta/transducers system (The data-lens/beta/transducers Reference Manual)">
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+<link href="Systems.html" rel="up" title="Systems">
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+<link href="Systems.html" rel="prev" title="Systems">
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+div.lisp {margin-left: 3.2em}
+kbd {font-style: oblique}
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+
+<body lang="en">
+<span id="The-data_002dlens_002fbeta_002ftransducers-system"></span><div class="header">
+<p>
+Next: <a href="The-data_002dlens-system.html" accesskey="n" rel="next">The data-lens system</a>, Previous: <a href="Systems.html" accesskey="p" rel="prev">Systems</a>, Up: <a href="Systems.html" accesskey="u" rel="up">Systems</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<span id="data_002dlens_002fbeta_002ftransducers"></span><h3 class="section">1.1 <tt>data-lens/beta/transducers</tt></h3>
+<span id="go-to-the-data_002dlens_002fbeta_002ftransducers-system"></span><span id="index-data_002dlens_002fbeta_002ftransducers"></span>
+<span id="index-System_002c-data_002dlens_002fbeta_002ftransducers"></span>
+<dl compact="compact">
+<dt><strong>Author</strong></dt>
+<dd><p>Edward Langley &lt;<a href="mailto:el-cl@elangley.org">el-cl@elangley.org</a>&gt;
+</p></dd>
+<dt><strong>License</strong></dt>
+<dd><p>MIT
+</p></dd>
+<dt><strong>Description</strong></dt>
+<dd><p>A collection of transducers to reduce stream-manipulation overhead
+</p></dd>
+<dt><strong>Dependencies</strong></dt>
+<dd><ul>
+<li> <a href="The-data_002dlens-system.html#go-to-the-data_002dlens-system"><tt>data-lens</tt></a> (system)
+</li><li> <tt>alexandria</tt>
+</li></ul>
+</dd>
+<dt><strong>Source</strong></dt>
+<dd><p><a href="The-data_002dlens_002easd-file.html#go-to-the-data_002dlens_2024asd-file"><tt>data-lens.asd</tt></a> (file)
+</p></dd>
+<dt><strong>Components</strong></dt>
+<dd><ul>
+<li> <a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
+</li><li> <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</li><li> <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</li><li> <a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"><tt>lazy-sequence.lisp</tt></a> (file)
+</li></ul>
+</dd>
+</dl>
+
+
+
+
+
+</body>
+</html>
diff --git a/docs/The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html b/docs/The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html
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--- /dev/null
+++ b/docs/The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>The data-lens/beta/transducers/lazy-sequence․lisp file (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens/beta/transducers/lazy-sequence․lisp file (The data-lens/beta/transducers Reference Manual)">
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+<meta name="Generator" content="texi2any">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
+<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
+<link href="Lisp-files.html" rel="up" title="Lisp files">
+<link href="The-data_002dlens_002fpackage_002elisp-file.html" rel="next" title="The data-lens/package․lisp file">
+<link href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html" rel="prev" title="The data-lens/beta/transducers/transducers․lisp file">
+<style type="text/css">
+<!--
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+div.lisp {margin-left: 3.2em}
+kbd {font-style: oblique}
+pre.display {font-family: inherit}
+pre.format {font-family: inherit}
+pre.menu-comment {font-family: serif}
+pre.menu-preformatted {font-family: serif}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+
+</head>
+
+<body lang="en">
+<span id="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"></span><div class="header">
+<p>
+Next: <a href="The-data_002dlens_002fpackage_002elisp-file.html" accesskey="n" rel="next">The data-lens/package․lisp file</a>, Previous: <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html" accesskey="p" rel="prev">The data-lens/beta/transducers/transducers․lisp file</a>, Up: <a href="Lisp-files.html" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<span id="data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp"></span><h4 class="subsection">2.1.5 <tt>data-lens/beta/transducers/lazy-sequence.lisp</tt></h4>
+<span id="go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file"></span><span id="index-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp"></span>
+<span id="index-Lisp-File_002c-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp"></span>
+<span id="index-File_002c-Lisp_002c-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp"></span>
+<dl compact="compact">
+<dt><strong>Dependency</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"><tt>transducers.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Parent</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers-system.html#go-to-the-data_002dlens_002fbeta_002ftransducers-system"><tt>data-lens/beta/transducers</tt></a> (system)
+</p></dd>
+<dt><strong>Location</strong></dt>
+<dd><p><tt>lazy-sequence.lisp</tt>
+</p></dd>
+<dt><strong>Exported Definitions</strong></dt>
+<dd><ul>
+<li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236IOTA-function"><tt>iota</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-function"><tt>lazy-sequence</tt></a> (function)
+</li><li> <a href="Exported-classes.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-class"><tt>lazy-sequence</tt></a> (class)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING-macro"><tt>repeating</tt></a> (macro)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING_002a-function"><tt>repeating*</tt></a> (function)
+</li></ul>
+</dd>
+<dt><strong>Internal Definitions</strong></dt>
+<dd><p><a href="Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-method"><tt>next</tt></a> (method)
+</p></dd>
+</dl>
+
+
+
+
+</body>
+</html>
diff --git a/docs/The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html b/docs/The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html
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+++ b/docs/The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>The data-lens/beta/transducers/package․lisp file (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens/beta/transducers/package․lisp file (The data-lens/beta/transducers Reference Manual)">
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+<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
+<link href="Lisp-files.html" rel="up" title="Lisp files">
+<link href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html" rel="next" title="The data-lens/beta/transducers/transducer-protocol․lisp file">
+<link href="The-data_002dlens_002easd-file.html" rel="prev" title="The data-lens․asd file">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
+div.display {margin-left: 3.2em}
+div.example {margin-left: 3.2em}
+div.lisp {margin-left: 3.2em}
+kbd {font-style: oblique}
+pre.display {font-family: inherit}
+pre.format {font-family: inherit}
+pre.menu-comment {font-family: serif}
+pre.menu-preformatted {font-family: serif}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
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+-->
+</style>
+
+
+</head>
+
+<body lang="en">
+<span id="The-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"></span><div class="header">
+<p>
+Next: <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html" accesskey="n" rel="next">The data-lens/beta/transducers/transducer-protocol․lisp file</a>, Previous: <a href="The-data_002dlens_002easd-file.html" accesskey="p" rel="prev">The data-lens․asd file</a>, Up: <a href="Lisp-files.html" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<span id="data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp"></span><h4 class="subsection">2.1.2 <tt>data-lens/beta/transducers/package.lisp</tt></h4>
+<span id="go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"></span><span id="index-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp"></span>
+<span id="index-Lisp-File_002c-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp"></span>
+<span id="index-File_002c-Lisp_002c-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp"></span>
+<dl compact="compact">
+<dt><strong>Parent</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers-system.html#go-to-the-data_002dlens_002fbeta_002ftransducers-system"><tt>data-lens/beta/transducers</tt></a> (system)
+</p></dd>
+<dt><strong>Location</strong></dt>
+<dd><p><tt>package.lisp</tt>
+</p></dd>
+<dt><strong>Packages</strong></dt>
+<dd><ul>
+<li> <a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
+</li><li> <a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
+</li><li> <a href="The-data_002dlens_002epackage-package.html#go-to-the-DATA_002dLENS_2024PACKAGE-package"><tt>data-lens.package</tt></a>
+</li><li> <a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
+</li><li> <a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
+</li></ul>
+</dd>
+</dl>
+
+
+
+
+</body>
+</html>
diff --git a/docs/The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html b/docs/The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html
new file mode 100644
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--- /dev/null
+++ b/docs/The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html
@@ -0,0 +1,85 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>The data-lens/beta/transducers/transducer-protocol․lisp file (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens/beta/transducers/transducer-protocol․lisp file (The data-lens/beta/transducers Reference Manual)">
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+<meta name="Generator" content="texi2any">
+<link href="index.html" rel="start" title="Top">
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+<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
+<link href="Lisp-files.html" rel="up" title="Lisp files">
+<link href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html" rel="next" title="The data-lens/beta/transducers/transducers․lisp file">
+<link href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html" rel="prev" title="The data-lens/beta/transducers/package․lisp file">
+<style type="text/css">
+<!--
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+div.lisp {margin-left: 3.2em}
+kbd {font-style: oblique}
+pre.display {font-family: inherit}
+pre.format {font-family: inherit}
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+pre.menu-preformatted {font-family: serif}
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+
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+<span id="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"></span><div class="header">
+<p>
+Next: <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html" accesskey="n" rel="next">The data-lens/beta/transducers/transducers․lisp file</a>, Previous: <a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html" accesskey="p" rel="prev">The data-lens/beta/transducers/package․lisp file</a>, Up: <a href="Lisp-files.html" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<span id="data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp"></span><h4 class="subsection">2.1.3 <tt>data-lens/beta/transducers/transducer-protocol.lisp</tt></h4>
+<span id="go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"></span><span id="index-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp"></span>
+<span id="index-Lisp-File_002c-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp"></span>
+<span id="index-File_002c-Lisp_002c-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp"></span>
+<dl compact="compact">
+<dt><strong>Dependency</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Parent</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers-system.html#go-to-the-data_002dlens_002fbeta_002ftransducers-system"><tt>data-lens/beta/transducers</tt></a> (system)
+</p></dd>
+<dt><strong>Location</strong></dt>
+<dd><p><tt>transducer-protocol.lisp</tt>
+</p></dd>
+<dt><strong>Exported Definitions</strong></dt>
+<dd><ul>
+<li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236EXIT_002dEARLY-function"><tt>exit-early</tt></a> (function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-generic-function"><tt>init</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-generic-function"><tt>reduce-generic</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236SEQUENCE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236SEQUENCE-COMMON_002dLISP_2236_2236SYMBOL-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236SYMBOL-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236HASH_002dTABLE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method"><tt>reduce-generic</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-generic-function"><tt>stepper</tt></a> (generic function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236TRANSDUCE-function"><tt>transduce</tt></a> (function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-generic-function"><tt>unwrap</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236T-method"><tt>unwrap</tt></a> (method)
+</li></ul>
+</dd>
+<dt><strong>Internal Definitions</strong></dt>
+<dd><p><a href="Internal-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236DEFDOCUMENTATION-macro"><tt>defdocumentation</tt></a> (macro)
+</p></dd>
+</dl>
+
+
+
+
+</body>
+</html>
diff --git a/docs/The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html b/docs/The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html
new file mode 100644
index 0000000..6078b52
--- /dev/null
+++ b/docs/The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html
@@ -0,0 +1,100 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>The data-lens/beta/transducers/transducers․lisp file (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens/beta/transducers/transducers․lisp file (The data-lens/beta/transducers Reference Manual)">
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+<meta name="Generator" content="texi2any">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
+<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
+<link href="Lisp-files.html" rel="up" title="Lisp files">
+<link href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html" rel="next" title="The data-lens/beta/transducers/lazy-sequence․lisp file">
+<link href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html" rel="prev" title="The data-lens/beta/transducers/transducer-protocol․lisp file">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
+div.display {margin-left: 3.2em}
+div.example {margin-left: 3.2em}
+div.lisp {margin-left: 3.2em}
+kbd {font-style: oblique}
+pre.display {font-family: inherit}
+pre.format {font-family: inherit}
+pre.menu-comment {font-family: serif}
+pre.menu-preformatted {font-family: serif}
+span.nolinebreak {white-space: nowrap}
+span.roman {font-family: initial; font-weight: normal}
+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+
+</head>
+
+<body lang="en">
+<span id="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"></span><div class="header">
+<p>
+Next: <a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html" accesskey="n" rel="next">The data-lens/beta/transducers/lazy-sequence․lisp file</a>, Previous: <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html" accesskey="p" rel="prev">The data-lens/beta/transducers/transducer-protocol․lisp file</a>, Up: <a href="Lisp-files.html" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<span id="data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp"></span><h4 class="subsection">2.1.4 <tt>data-lens/beta/transducers/transducers.lisp</tt></h4>
+<span id="go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file"></span><span id="index-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp"></span>
+<span id="index-Lisp-File_002c-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp"></span>
+<span id="index-File_002c-Lisp_002c-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp"></span>
+<dl compact="compact">
+<dt><strong>Dependency</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file"><tt>transducer-protocol.lisp</tt></a> (file)
+</p></dd>
+<dt><strong>Parent</strong></dt>
+<dd><p><a href="The-data_002dlens_002fbeta_002ftransducers-system.html#go-to-the-data_002dlens_002fbeta_002ftransducers-system"><tt>data-lens/beta/transducers</tt></a> (system)
+</p></dd>
+<dt><strong>Location</strong></dt>
+<dd><p><tt>transducers.lisp</tt>
+</p></dd>
+<dt><strong>Exported Definitions</strong></dt>
+<dd><ul>
+<li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236CATTING-function"><tt>catting</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COLLECTING-function"><tt>collecting</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMPRESSING_002dRUNS-function"><tt>compressing-runs</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DEDUPING-function"><tt>deduping</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DROPPING-function"><tt>dropping</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236FILTERING-function"><tt>filtering</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dSELECT-function"><tt>hash-table-select</tt></a> (function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-method"><tt>init</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236VECTOR_002dBUILDER_2769-method"><tt>init</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236INIT-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dBUILDER_2769-method"><tt>init</tt></a> (method)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPCATTING-function"><tt>mapcatting</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPPING-function"><tt>mapping</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dFILTERING-function"><tt>mv-filtering</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dMAPPING-function"><tt>mv-mapping</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dSELECTING-function"><tt>mv-selecting</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236SPLITTING-function"><tt>splitting</tt></a> (function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-method"><tt>stepper</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236VECTOR_002dBUILDER_2769-method"><tt>stepper</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dBUILDER_2769-method"><tt>stepper</tt></a> (method)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236TAKING-function"><tt>taking</tt></a> (function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-COMMON_002dLISP_2236_2236T-method"><tt>unwrap</tt></a> (method)
+</li></ul>
+</dd>
+<dt><strong>Internal Definitions</strong></dt>
+<dd><ul>
+<li> <a href="Internal-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMMENT-macro"><tt>comment</tt></a> (macro)
+</li><li> <a href="Internal-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236EDUCTION-function"><tt>eduction</tt></a> (function)
+</li><li> <a href="Internal-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236SEQ-function"><tt>seq</tt></a> (function)
+</li><li> <a href="Internal-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236TRANSDUCER_002dLAMBDA-macro"><tt>transducer-lambda</tt></a> (macro)
+</li></ul>
+</dd>
+</dl>
+
+
+
+
+</body>
+</html>
diff --git a/docs/The-data_002dlens_002flens_002elisp-file.html b/docs/The-data_002dlens_002flens_002elisp-file.html
index fd18f37..b706875 100644
--- a/docs/The-data_002dlens_002flens_002elisp-file.html
+++ b/docs/The-data_002dlens_002flens_002elisp-file.html
@@ -1,42 +1,33 @@
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 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>The data-lens/lens․lisp file (The data-lens Reference Manual)</title>
+<title>The data-lens/lens․lisp file (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="The data-lens/lens․lisp file (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens/lens․lisp file (The data-lens/beta/transducers Reference Manual)">
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 <meta name="Generator" content="texi2any">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Lisp-files.html#Lisp-files" rel="up" title="Lisp files">
-<link href="Packages.html#Packages" rel="next" title="Packages">
-<link href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file" rel="prev" title="The data-lens/optics․lisp file">
+<link href="Lisp-files.html" rel="up" title="Lisp files">
+<link href="Packages.html" rel="next" title="Packages">
+<link href="The-data_002dlens_002foptics_002elisp-file.html" rel="prev" title="The data-lens/optics․lisp file">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
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-div.smalllisp {margin-left: 3.2em}
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@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="The-data_002dlens_002flens_2024lisp-file"></a>
-<div class="header">
+<span id="The-data_002dlens_002flens_2024lisp-file"></span><div class="header">
 <p>
-Previous: <a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file" accesskey="p" rel="prev">The data-lens/optics․lisp file</a>, Up: <a href="Lisp-files.html#Lisp-files" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Previous: <a href="The-data_002dlens_002foptics_002elisp-file.html" accesskey="p" rel="prev">The data-lens/optics․lisp file</a>, Up: <a href="Lisp-files.html" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="data_002dlens_002flens_002elisp"></a>
-<h4 class="subsection">2.1.4 <tt>data-lens/lens.lisp</tt></h4>
-<a name="go-to-the-data_002dlens_002flens_2024lisp-file"></a><a name="index-data_002dlens_002flens_002elisp"></a>
-<a name="index-Lisp-File_002c-data_002dlens_002flens_002elisp"></a>
-<a name="index-File_002c-Lisp_002c-data_002dlens_002flens_002elisp"></a>
+<span id="data_002dlens_002flens_002elisp"></span><h4 class="subsection">2.1.8 <tt>data-lens/lens.lisp</tt></h4>
+<span id="go-to-the-data_002dlens_002flens_2024lisp-file"></span><span id="index-data_002dlens_002flens_002elisp"></span>
+<span id="index-Lisp-File_002c-data_002dlens_002flens_002elisp"></span>
+<span id="index-File_002c-Lisp_002c-data_002dlens_002flens_002elisp"></span>
 <dl compact="compact">
 <dt><strong>Dependency</strong></dt>
 <dd><p><a href="The-data_002dlens_002foptics_002elisp-file.html#go-to-the-data_002dlens_002foptics_2024lisp-file"><tt>optics.lisp</tt></a> (file)
@@ -86,6 +75,11 @@ Previous: <a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002d
 </li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-generic-function"><tt>extract-key</tt></a> (generic function)
 </li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-COMMON_002dLISP_2236_2236HASH_002dTABLE-COMMON_002dLISP_2236_2236T-method"><tt>extract-key</tt></a> (method)
 </li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236EXTRACT_002dKEY-COMMON_002dLISP_2236_2236LIST-COMMON_002dLISP_2236_2236T-method"><tt>extract-key</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-generic-function"><tt>functionalize</tt></a> (generic function)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236HASH_002dTABLE-method"><tt>functionalize</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236VECTOR-method"><tt>functionalize</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236SYMBOL-method"><tt>functionalize</tt></a> (method)
+</li><li> <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2236_2236FUNCTIONALIZE-COMMON_002dLISP_2236_2236FUNCTION-method"><tt>functionalize</tt></a> (method)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236INCLUDE-function"><tt>include</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236JUXT-function"><tt>juxt</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236KEY-function"><tt>key</tt></a> (function)
@@ -103,6 +97,7 @@ Previous: <a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002d
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236SLICE-function"><tt>slice</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236SORTED-function"><tt>sorted</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236SPLICE_002dELT-function"><tt>splice-elt</tt></a> (function)
+</li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236SUFFIXP-function"><tt>suffixp</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dELT-function"><tt>transform-elt</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dHEAD-function"><tt>transform-head</tt></a> (function)
 </li><li> <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2236_2236TRANSFORM_002dTAIL-function"><tt>transform-tail</tt></a> (function)
diff --git a/docs/The-data_002dlens_002foptics_002elisp-file.html b/docs/The-data_002dlens_002foptics_002elisp-file.html
index 87a4a9b..3461a63 100644
--- a/docs/The-data_002dlens_002foptics_002elisp-file.html
+++ b/docs/The-data_002dlens_002foptics_002elisp-file.html
@@ -1,42 +1,33 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>The data-lens/optics․lisp file (The data-lens Reference Manual)</title>
+<title>The data-lens/optics․lisp file (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="The data-lens/optics․lisp file (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens/optics․lisp file (The data-lens/beta/transducers Reference Manual)">
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+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Lisp-files.html#Lisp-files" rel="up" title="Lisp files">
-<link href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file" rel="next" title="The data-lens/lens․lisp file">
-<link href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file" rel="prev" title="The data-lens/package․lisp file">
+<link href="Lisp-files.html" rel="up" title="Lisp files">
+<link href="The-data_002dlens_002flens_002elisp-file.html" rel="next" title="The data-lens/lens․lisp file">
+<link href="The-data_002dlens_002fpackage_002elisp-file.html" rel="prev" title="The data-lens/package․lisp file">
 <style type="text/css">
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@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="The-data_002dlens_002foptics_2024lisp-file"></a>
-<div class="header">
+<span id="The-data_002dlens_002foptics_2024lisp-file"></span><div class="header">
 <p>
-Next: <a href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file" accesskey="n" rel="next">The data-lens/lens․lisp file</a>, Previous: <a href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file" accesskey="p" rel="prev">The data-lens/package․lisp file</a>, Up: <a href="Lisp-files.html#Lisp-files" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="The-data_002dlens_002flens_002elisp-file.html" accesskey="n" rel="next">The data-lens/lens․lisp file</a>, Previous: <a href="The-data_002dlens_002fpackage_002elisp-file.html" accesskey="p" rel="prev">The data-lens/package․lisp file</a>, Up: <a href="Lisp-files.html" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="data_002dlens_002foptics_002elisp"></a>
-<h4 class="subsection">2.1.3 <tt>data-lens/optics.lisp</tt></h4>
-<a name="go-to-the-data_002dlens_002foptics_2024lisp-file"></a><a name="index-data_002dlens_002foptics_002elisp"></a>
-<a name="index-Lisp-File_002c-data_002dlens_002foptics_002elisp"></a>
-<a name="index-File_002c-Lisp_002c-data_002dlens_002foptics_002elisp"></a>
+<span id="data_002dlens_002foptics_002elisp"></span><h4 class="subsection">2.1.7 <tt>data-lens/optics.lisp</tt></h4>
+<span id="go-to-the-data_002dlens_002foptics_2024lisp-file"></span><span id="index-data_002dlens_002foptics_002elisp"></span>
+<span id="index-Lisp-File_002c-data_002dlens_002foptics_002elisp"></span>
+<span id="index-File_002c-Lisp_002c-data_002dlens_002foptics_002elisp"></span>
 <dl compact="compact">
 <dt><strong>Dependency</strong></dt>
 <dd><p><a href="The-data_002dlens_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fpackage_2024lisp-file"><tt>package.lisp</tt></a> (file)
diff --git a/docs/The-data_002dlens_002fpackage_002elisp-file.html b/docs/The-data_002dlens_002fpackage_002elisp-file.html
index 0e102d2..209a506 100644
--- a/docs/The-data_002dlens_002fpackage_002elisp-file.html
+++ b/docs/The-data_002dlens_002fpackage_002elisp-file.html
@@ -1,42 +1,33 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>The data-lens/package․lisp file (The data-lens Reference Manual)</title>
+<title>The data-lens/package․lisp file (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="The data-lens/package․lisp file (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="The data-lens/package․lisp file (The data-lens/beta/transducers Reference Manual)">
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 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
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-<link href="Indexes.html#Indexes" rel="index" title="Indexes">
+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Lisp-files.html#Lisp-files" rel="up" title="Lisp files">
-<link href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file" rel="next" title="The data-lens/optics․lisp file">
-<link href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file" rel="prev" title="The data-lens․asd file">
+<link href="Lisp-files.html" rel="up" title="Lisp files">
+<link href="The-data_002dlens_002foptics_002elisp-file.html" rel="next" title="The data-lens/optics․lisp file">
+<link href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html" rel="prev" title="The data-lens/beta/transducers/lazy-sequence․lisp file">
 <style type="text/css">
 <!--
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 span.sansserif {font-family: sans-serif; font-weight: normal}
@@ -48,17 +39,15 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="The-data_002dlens_002fpackage_2024lisp-file"></a>
-<div class="header">
+<span id="The-data_002dlens_002fpackage_2024lisp-file"></span><div class="header">
 <p>
-Next: <a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file" accesskey="n" rel="next">The data-lens/optics․lisp file</a>, Previous: <a href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file" accesskey="p" rel="prev">The data-lens․asd file</a>, Up: <a href="Lisp-files.html#Lisp-files" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="The-data_002dlens_002foptics_002elisp-file.html" accesskey="n" rel="next">The data-lens/optics․lisp file</a>, Previous: <a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html" accesskey="p" rel="prev">The data-lens/beta/transducers/lazy-sequence․lisp file</a>, Up: <a href="Lisp-files.html" accesskey="u" rel="up">Lisp files</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="data_002dlens_002fpackage_002elisp"></a>
-<h4 class="subsection">2.1.2 <tt>data-lens/package.lisp</tt></h4>
-<a name="go-to-the-data_002dlens_002fpackage_2024lisp-file"></a><a name="index-data_002dlens_002fpackage_002elisp"></a>
-<a name="index-Lisp-File_002c-data_002dlens_002fpackage_002elisp"></a>
-<a name="index-File_002c-Lisp_002c-data_002dlens_002fpackage_002elisp"></a>
+<span id="data_002dlens_002fpackage_002elisp"></span><h4 class="subsection">2.1.6 <tt>data-lens/package.lisp</tt></h4>
+<span id="go-to-the-data_002dlens_002fpackage_2024lisp-file"></span><span id="index-data_002dlens_002fpackage_002elisp"></span>
+<span id="index-Lisp-File_002c-data_002dlens_002fpackage_002elisp"></span>
+<span id="index-File_002c-Lisp_002c-data_002dlens_002fpackage_002elisp"></span>
 <dl compact="compact">
 <dt><strong>Parent</strong></dt>
 <dd><p><a href="The-data_002dlens-system.html#go-to-the-data_002dlens-system"><tt>data-lens</tt></a> (system)
@@ -69,8 +58,10 @@ Next: <a href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens
 <dt><strong>Packages</strong></dt>
 <dd><ul>
 <li> <a href="The-data_002dlens-package.html#go-to-the-DATA_002dLENS-package"><tt>data-lens</tt></a>
+</li><li> <a href="The-data_002dlens_002etransducers-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS-package"><tt>data-lens.transducers</tt></a>
 </li><li> <a href="The-data_002dlens_002epackage-package.html#go-to-the-DATA_002dLENS_2024PACKAGE-package"><tt>data-lens.package</tt></a>
 </li><li> <a href="The-data_002dlens_002elenses-package.html#go-to-the-DATA_002dLENS_2024LENSES-package"><tt>data-lens.lenses</tt></a>
+</li><li> <a href="The-data_002dlens_002etransducers_002einternals-package.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS-package"><tt>data-lens.transducers.internals</tt></a>
 </li></ul>
 </dd>
 </dl>
diff --git a/docs/Variable-index.html b/docs/Variable-index.html
index 651225c..e6f83c0 100644
--- a/docs/Variable-index.html
+++ b/docs/Variable-index.html
@@ -1,42 +1,33 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Variable index (The data-lens Reference Manual)</title>
+<title>Variable index (The data-lens/beta/transducers Reference Manual)</title>
 
-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="Variable index (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="Variable index (The data-lens/beta/transducers Reference Manual)">
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 <meta name="distribution" content="global">
 <meta name="Generator" content="texi2any">
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+<link href="index.html" rel="start" title="Top">
+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Indexes.html#Indexes" rel="up" title="Indexes">
-<link href="Data-type-index.html#Data-type-index" rel="next" title="Data type index">
-<link href="Function-index.html#Function-index" rel="prev" title="Function index">
+<link href="Indexes.html" rel="up" title="Indexes">
+<link href="Data-type-index.html" rel="next" title="Data type index">
+<link href="Function-index.html" rel="prev" title="Function index">
 <style type="text/css">
 <!--
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 blockquote.indentedblock {margin-right: 0em}
-blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
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 span.sansserif {font-family: sans-serif; font-weight: normal}
@@ -48,14 +39,12 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Variable-index"></a>
-<div class="header">
+<span id="Variable-index"></span><div class="header">
 <p>
-Next: <a href="Data-type-index.html#Data-type-index" accesskey="n" rel="next">Data type index</a>, Previous: <a href="Function-index.html#Function-index" accesskey="p" rel="prev">Function index</a>, Up: <a href="Indexes.html#Indexes" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Data-type-index.html" accesskey="n" rel="next">Data type index</a>, Previous: <a href="Function-index.html" accesskey="p" rel="prev">Function index</a>, Up: <a href="Indexes.html" accesskey="u" rel="up">Indexes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="Variables"></a>
-<h3 class="appendixsec">A.3 Variables</h3>
+<span id="Variables"></span><h3 class="appendixsec">A.3 Variables</h3>
 <table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Variable-index_vr_symbol-1"><b>%</b></a>
  &nbsp; 
 <br>
@@ -65,13 +54,15 @@ Next: <a href="Data-type-index.html#Data-type-index" accesskey="n" rel="next">Da
 <table class="index-vr" border="0">
 <tr><td></td><th align="left">Index Entry</th><td>&nbsp;</td><th align="left"> Section</th></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Variable-index_vr_symbol-1">%</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-classes.html#index-_0025v"><code>%v</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html#Internal-classes">Internal classes</a></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-classes.html#index-_0025v-1"><code>%v</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html#Internal-classes">Internal classes</a></td></tr>
+<tr><th id="Variable-index_vr_symbol-1">%</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-classes.html#index-_0025next"><code>%next</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-classes.html">Exported classes</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-classes.html#index-_0025v"><code>%v</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html">Internal classes</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-classes.html#index-_0025v-1"><code>%v</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html">Internal classes</a></td></tr>
 <tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Variable-index_vr_letter-S">S</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Internal-classes.html#index-Slot_002c-_0025v"><code><span class="roman">Slot, </span>%v</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html#Internal-classes">Internal classes</a></td></tr>
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+<tr><th id="Variable-index_vr_letter-S">S</th><td></td><td></td></tr>
+<tr><td></td><td valign="top"><a href="Exported-classes.html#index-Slot_002c-_0025next"><code><span class="roman">Slot, </span>%next</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Exported-classes.html">Exported classes</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-classes.html#index-Slot_002c-_0025v"><code><span class="roman">Slot, </span>%v</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html">Internal classes</a></td></tr>
+<tr><td></td><td valign="top"><a href="Internal-classes.html#index-Slot_002c-_0025v-1"><code><span class="roman">Slot, </span>%v</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="Internal-classes.html">Internal classes</a></td></tr>
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diff --git a/docs/data-lens-transducers.info b/docs/data-lens-transducers.info
new file mode 100644
index 0000000..1fc8091
--- /dev/null
+++ b/docs/data-lens-transducers.info
@@ -0,0 +1,2230 @@
+This is data-lens-transducers.info, produced by makeinfo version 6.7
+from data-lens-transducers.texi.
+
+INFO-DIR-SECTION Common Lisp
+START-INFO-DIR-ENTRY
+* data-lens/beta/transducers Reference: (data-lens-transducers). The data-lens/beta/transducers Reference Manual.
+END-INFO-DIR-ENTRY
+
+
+File: data-lens-transducers.info,  Node: Top,  Next: Systems,  Prev: (dir),  Up: (dir)
+
+The data-lens/beta/transducers Reference Manual
+***********************************************
+
+This is the data-lens/beta/transducers Reference Manual, generated
+automatically by Declt version 3.0 "Montgomery Scott" on Wed Jan 06
+14:24:28 2021 GMT-8.
+
+* Menu:
+
+* Systems:: The systems documentation
+* Files:: The files documentation
+* Packages:: The packages documentation
+* Definitions:: The symbols documentation
+* Indexes:: Concepts, functions, variables and data types
+
+
+File: data-lens-transducers.info,  Node: Systems,  Next: Files,  Prev: Top,  Up: Top
+
+1 Systems
+*********
+
+The main system appears first, followed by any subsystem dependency.
+
+* Menu:
+
+* The data-lens/beta/transducers system::
+* The data-lens system::
+
+
+File: data-lens-transducers.info,  Node: The data-lens/beta/transducers system,  Next: The data-lens system,  Prev: Systems,  Up: Systems
+
+1.1 data-lens/beta/transducers
+==============================
+
+*Author*
+     Edward Langley <<el-cl@elangley.org>>
+*License*
+     MIT
+*Description*
+     A collection of transducers to reduce stream-manipulation overhead
+*Dependencies*
+        • *note data-lens: go to the data-lens system. (system)
+        • alexandria
+*Source*
+     *note data-lens.asd: go to the data-lens․asd file. (file)
+*Components*
+        • *note package.lisp: go to the
+          data-lens/beta/transducers/package․lisp file. (file)
+        • *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+        • *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+        • *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+
+
+File: data-lens-transducers.info,  Node: The data-lens system,  Prev: The data-lens/beta/transducers system,  Up: Systems
+
+1.2 data-lens
+=============
+
+*Author*
+     Edward Langley <<el-cl@elangley.org>>
+*License*
+     MIT
+*Description*
+     Utilities for building data transformations from composable
+     functions, modeled on lenses and transducers
+*Dependencies*
+        • cl-ppcre
+        • alexandria
+        • serapeum
+*Source*
+     *note data-lens.asd: go to the data-lens․asd file. (file)
+*Components*
+        • *note package.lisp: go to the data-lens/package․lisp file.
+          (file)
+        • *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+        • *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens-transducers.info,  Node: Files,  Next: Packages,  Prev: Systems,  Up: Top
+
+2 Files
+*******
+
+Files are sorted by type and then listed depth-first from the systems
+components trees.
+
+* Menu:
+
+* Lisp files::
+
+
+File: data-lens-transducers.info,  Node: Lisp files,  Prev: Files,  Up: Files
+
+2.1 Lisp
+========
+
+* Menu:
+
+* The data-lens.asd file: The data-lens․asd file.
+* The data-lens/beta/transducers/package.lisp file: The data-lens/beta/transducers/package․lisp file.
+* The data-lens/beta/transducers/transducer-protocol.lisp file: The data-lens/beta/transducers/transducer-protocol․lisp file.
+* The data-lens/beta/transducers/transducers.lisp file: The data-lens/beta/transducers/transducers․lisp file.
+* The data-lens/beta/transducers/lazy-sequence.lisp file: The data-lens/beta/transducers/lazy-sequence․lisp file.
+* The data-lens/package.lisp file: The data-lens/package․lisp file.
+* The data-lens/optics.lisp file: The data-lens/optics․lisp file.
+* The data-lens/lens.lisp file: The data-lens/lens․lisp file.
+
+
+File: data-lens-transducers.info,  Node: The data-lens․asd file,  Next: The data-lens/beta/transducers/package․lisp file,  Prev: Lisp files,  Up: Lisp files
+
+2.1.1 data-lens.asd
+-------------------
+
+*Location*
+     data-lens.asd
+*Systems*
+        • *note data-lens/beta/transducers: go to the
+          data-lens/beta/transducers system. (system)
+        • *note data-lens: go to the data-lens system. (system)
+
+
+File: data-lens-transducers.info,  Node: The data-lens/beta/transducers/package․lisp file,  Next: The data-lens/beta/transducers/transducer-protocol․lisp file,  Prev: The data-lens․asd file,  Up: Lisp files
+
+2.1.2 data-lens/beta/transducers/package.lisp
+---------------------------------------------
+
+*Parent*
+     *note data-lens/beta/transducers: go to the
+     data-lens/beta/transducers system. (system)
+*Location*
+     package.lisp
+*Packages*
+        • *note data-lens: go to the DATA-LENS package.
+        • *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+        • *note data-lens.package: go to the DATA-LENS․PACKAGE package.
+        • *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+        • *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+
+
+File: data-lens-transducers.info,  Node: The data-lens/beta/transducers/transducer-protocol․lisp file,  Next: The data-lens/beta/transducers/transducers․lisp file,  Prev: The data-lens/beta/transducers/package․lisp file,  Up: Lisp files
+
+2.1.3 data-lens/beta/transducers/transducer-protocol.lisp
+---------------------------------------------------------
+
+*Dependency*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Parent*
+     *note data-lens/beta/transducers: go to the
+     data-lens/beta/transducers system. (system)
+*Location*
+     transducer-protocol.lisp
+*Exported Definitions*
+        • *note exit-early: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function.
+          (function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          generic function. (generic function)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic
+          function. (generic function)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T
+          COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function.
+          (generic function)
+        • *note transduce: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function.
+          (function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function.
+          (generic function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶T method. (method)
+*Internal Definitions*
+     *note defdocumentation: go to the
+     DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro. (macro)
+
+
+File: data-lens-transducers.info,  Node: The data-lens/beta/transducers/transducers․lisp file,  Next: The data-lens/beta/transducers/lazy-sequence․lisp file,  Prev: The data-lens/beta/transducers/transducer-protocol․lisp file,  Up: Lisp files
+
+2.1.4 data-lens/beta/transducers/transducers.lisp
+-------------------------------------------------
+
+*Dependency*
+     *note transducer-protocol.lisp: go to the
+     data-lens/beta/transducers/transducer-protocol․lisp file. (file)
+*Parent*
+     *note data-lens/beta/transducers: go to the
+     data-lens/beta/transducers system. (system)
+*Location*
+     transducers.lisp
+*Exported Definitions*
+        • *note catting: go to the DATA-LENS․TRANSDUCERS∶∶CATTING
+          function. (function)
+        • *note collecting: go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING
+          function. (function)
+        • *note compressing-runs: go to the
+          DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function. (function)
+        • *note deduping: go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING
+          function. (function)
+        • *note dropping: go to the DATA-LENS․TRANSDUCERS∶∶DROPPING
+          function. (function)
+        • *note filtering: go to the DATA-LENS․TRANSDUCERS∶∶FILTERING
+          function. (function)
+        • *note hash-table-select: go to the
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function. (function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method.
+          (method)
+        • *note mapcatting: go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING
+          function. (function)
+        • *note mapping: go to the DATA-LENS․TRANSDUCERS∶∶MAPPING
+          function. (function)
+        • *note mv-filtering: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function. (function)
+        • *note mv-mapping: go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING
+          function. (function)
+        • *note mv-selecting: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function. (function)
+        • *note splitting: go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING
+          function. (function)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method. (method)
+        • *note taking: go to the DATA-LENS․TRANSDUCERS∶∶TAKING
+          function. (function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method.
+          (method)
+*Internal Definitions*
+        • *note comment: go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro.
+          (macro)
+        • *note eduction: go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION
+          function. (function)
+        • *note seq: go to the DATA-LENS․TRANSDUCERS∶∶SEQ function.
+          (function)
+        • *note transducer-lambda: go to the
+          DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro. (macro)
+
+
+File: data-lens-transducers.info,  Node: The data-lens/beta/transducers/lazy-sequence․lisp file,  Next: The data-lens/package․lisp file,  Prev: The data-lens/beta/transducers/transducers․lisp file,  Up: Lisp files
+
+2.1.5 data-lens/beta/transducers/lazy-sequence.lisp
+---------------------------------------------------
+
+*Dependency*
+     *note transducers.lisp: go to the
+     data-lens/beta/transducers/transducers․lisp file. (file)
+*Parent*
+     *note data-lens/beta/transducers: go to the
+     data-lens/beta/transducers system. (system)
+*Location*
+     lazy-sequence.lisp
+*Exported Definitions*
+        • *note iota: go to the DATA-LENS․TRANSDUCERS∶∶IOTA function.
+          (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function. (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class. (class)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION
+          COMMON-LISP∶∶T method. (method)
+        • *note repeating: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING
+          macro. (macro)
+        • *note repeating*: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING*
+          function. (function)
+*Internal Definitions*
+     *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+     DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method. (method)
+
+
+File: data-lens-transducers.info,  Node: The data-lens/package․lisp file,  Next: The data-lens/optics․lisp file,  Prev: The data-lens/beta/transducers/lazy-sequence․lisp file,  Up: Lisp files
+
+2.1.6 data-lens/package.lisp
+----------------------------
+
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     package.lisp
+*Packages*
+        • *note data-lens: go to the DATA-LENS package.
+        • *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+        • *note data-lens.package: go to the DATA-LENS․PACKAGE package.
+        • *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+        • *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+
+
+File: data-lens-transducers.info,  Node: The data-lens/optics․lisp file,  Next: The data-lens/lens․lisp file,  Prev: The data-lens/package․lisp file,  Up: Lisp files
+
+2.1.7 data-lens/optics.lisp
+---------------------------
+
+*Dependency*
+     *note package.lisp: go to the data-lens/package․lisp file. (file)
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     optics.lisp
+*Exported Definitions*
+        • *note make-alist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function. (function)
+        • *note make-hash-table-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function. (function)
+        • *note make-list-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-LIST-LENS function. (function)
+        • *note make-plist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function. (function)
+        • *note over: go to the DATA-LENS․LENSES∶∶OVER function.
+          (function)
+        • *note set: go to the DATA-LENS․LENSES∶∶SET function.
+          (function)
+        • *note view: go to the DATA-LENS․LENSES∶∶VIEW function.
+          (function)
+*Internal Definitions*
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE generic
+          function. (generic function)
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T
+          AROUND method. (method)
+        • *note constant-: go to the DATA-LENS․LENSES∶∶CONSTANT- class.
+          (class)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP generic function.
+          (generic function)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶LIST method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note identity-: go to the DATA-LENS․LENSES∶∶IDENTITY- class.
+          (class)
+        • *note make-alist-history-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function. (function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note wrap-constant: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT
+          function. (function)
+        • *note wrap-identity: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY
+          function. (function)
+
+
+File: data-lens-transducers.info,  Node: The data-lens/lens․lisp file,  Prev: The data-lens/optics․lisp file,  Up: Lisp files
+
+2.1.8 data-lens/lens.lisp
+-------------------------
+
+*Dependency*
+     *note optics.lisp: go to the data-lens/optics․lisp file. (file)
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     lens.lisp
+*Exported Definitions*
+        • *note <>1: go to the DATA-LENS∶∶<>1 macro. (macro)
+        • *note ==: go to the DATA-LENS∶∶== function. (function)
+        • *note applicable-when: go to the DATA-LENS∶∶APPLICABLE-WHEN
+          function. (function)
+        • *note applying: go to the DATA-LENS∶∶APPLYING macro. (macro)
+        • *note combine-matching-lists: go to the
+          DATA-LENS∶∶COMBINE-MATCHING-LISTS function. (function)
+        • *note compress-runs: go to the DATA-LENS∶∶COMPRESS-RUNS
+          function. (function)
+        • *note cumsum: go to the DATA-LENS∶∶CUMSUM function. (function)
+        • *note defun-ct: go to the DATA-LENS∶∶DEFUN-CT macro. (macro)
+        • *note denest: go to the DATA-LENS∶∶DENEST function. (function)
+        • *note derive: go to the DATA-LENS∶∶DERIVE function. (function)
+        • *note element: go to the DATA-LENS∶∶ELEMENT function.
+          (function)
+        • *note exclude: go to the DATA-LENS∶∶EXCLUDE function.
+          (function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY generic
+          function. (generic function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method. (method)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶LIST COMMON-LISP∶∶T method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          generic function. (generic function)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶HASH-TABLE method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶SYMBOL method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶FUNCTION method. (method)
+        • *note include: go to the DATA-LENS∶∶INCLUDE function.
+          (function)
+        • *note juxt: go to the DATA-LENS∶∶JUXT function. (function)
+        • *note key: go to the DATA-LENS∶∶KEY function. (function)
+        • *note key-transform: go to the DATA-LENS∶∶KEY-TRANSFORM
+          function. (function)
+        • *note let-fn: go to the DATA-LENS∶∶LET-FN macro. (macro)
+        • *note maximizing: go to the DATA-LENS∶∶MAXIMIZING function.
+          (function)
+        • *note of-length: go to the DATA-LENS∶∶OF-LENGTH function.
+          (function)
+        • *note of-max-length: go to the DATA-LENS∶∶OF-MAX-LENGTH
+          function. (function)
+        • *note of-min-length: go to the DATA-LENS∶∶OF-MIN-LENGTH
+          function. (function)
+        • *note on: go to the DATA-LENS∶∶ON function. (function)
+        • *note over: go to the DATA-LENS∶∶OVER function. (function)
+        • *note pick: go to the DATA-LENS∶∶PICK function. (function)
+        • *note regex-match: go to the DATA-LENS∶∶REGEX-MATCH function.
+          (function)
+        • *note shortcut: go to the DATA-LENS∶∶SHORTCUT macro. (macro)
+        • *note slice: go to the DATA-LENS∶∶SLICE function. (function)
+        • *note sorted: go to the DATA-LENS∶∶SORTED function. (function)
+        • *note splice-elt: go to the DATA-LENS∶∶SPLICE-ELT function.
+          (function)
+        • *note suffixp: go to the DATA-LENS∶∶SUFFIXP function.
+          (function)
+        • *note transform-elt: go to the DATA-LENS∶∶TRANSFORM-ELT
+          function. (function)
+        • *note transform-head: go to the DATA-LENS∶∶TRANSFORM-HEAD
+          function. (function)
+        • *note transform-tail: go to the DATA-LENS∶∶TRANSFORM-TAIL
+          function. (function)
+        • *note zipping: go to the DATA-LENS∶∶ZIPPING function.
+          (function)
+        • *note •: go to the DATA-LENS∶∶• macro. (macro)
+*Internal Definitions*
+        • *note =>>: go to the DATA-LENS∶∶=>> function. (function)
+        • *note cons-new: go to the DATA-LENS∶∶CONS-NEW function.
+          (function)
+        • *note deduplicate: go to the DATA-LENS∶∶DEDUPLICATE function.
+          (function)
+        • *note filler: go to the DATA-LENS∶∶FILLER function. (function)
+        • *note matching-list-reducer: go to the
+          DATA-LENS∶∶MATCHING-LIST-REDUCER function. (function)
+        • *note update: go to the DATA-LENS∶∶UPDATE function. (function)
+        • *note updatef: go to the DATA-LENS∶∶UPDATEF macro. (macro)
+
+
+File: data-lens-transducers.info,  Node: Packages,  Next: Definitions,  Prev: Files,  Up: Top
+
+3 Packages
+**********
+
+Packages are listed by definition order.
+
+* Menu:
+
+* The data-lens package::
+* The data-lens.transducers package: The data-lens․transducers package.
+* The data-lens.package package: The data-lens․package package.
+* The data-lens.lenses package: The data-lens․lenses package.
+* The data-lens.transducers.internals package: The data-lens․transducers․internals package.
+
+
+File: data-lens-transducers.info,  Node: The data-lens package,  Next: The data-lens․transducers package,  Prev: Packages,  Up: Packages
+
+3.1 data-lens
+=============
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note <>1: go to the DATA-LENS∶∶<>1 macro. (macro)
+        • *note ==: go to the DATA-LENS∶∶== function. (function)
+        • *note applicable-when: go to the DATA-LENS∶∶APPLICABLE-WHEN
+          function. (function)
+        • *note applying: go to the DATA-LENS∶∶APPLYING macro. (macro)
+        • *note combine-matching-lists: go to the
+          DATA-LENS∶∶COMBINE-MATCHING-LISTS function. (function)
+        • *note compress-runs: go to the DATA-LENS∶∶COMPRESS-RUNS
+          function. (function)
+        • *note cumsum: go to the DATA-LENS∶∶CUMSUM function. (function)
+        • *note defun-ct: go to the DATA-LENS∶∶DEFUN-CT macro. (macro)
+        • *note denest: go to the DATA-LENS∶∶DENEST function. (function)
+        • *note derive: go to the DATA-LENS∶∶DERIVE function. (function)
+        • *note element: go to the DATA-LENS∶∶ELEMENT function.
+          (function)
+        • *note exclude: go to the DATA-LENS∶∶EXCLUDE function.
+          (function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY generic
+          function. (generic function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method. (method)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶LIST COMMON-LISP∶∶T method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          generic function. (generic function)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶HASH-TABLE method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶SYMBOL method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶FUNCTION method. (method)
+        • *note include: go to the DATA-LENS∶∶INCLUDE function.
+          (function)
+        • *note juxt: go to the DATA-LENS∶∶JUXT function. (function)
+        • *note key: go to the DATA-LENS∶∶KEY function. (function)
+        • *note key-transform: go to the DATA-LENS∶∶KEY-TRANSFORM
+          function. (function)
+        • *note let-fn: go to the DATA-LENS∶∶LET-FN macro. (macro)
+        • *note maximizing: go to the DATA-LENS∶∶MAXIMIZING function.
+          (function)
+        • *note of-length: go to the DATA-LENS∶∶OF-LENGTH function.
+          (function)
+        • *note of-max-length: go to the DATA-LENS∶∶OF-MAX-LENGTH
+          function. (function)
+        • *note of-min-length: go to the DATA-LENS∶∶OF-MIN-LENGTH
+          function. (function)
+        • *note on: go to the DATA-LENS∶∶ON function. (function)
+        • *note over: go to the DATA-LENS∶∶OVER function. (function)
+        • *note pick: go to the DATA-LENS∶∶PICK function. (function)
+        • *note regex-match: go to the DATA-LENS∶∶REGEX-MATCH function.
+          (function)
+        • *note shortcut: go to the DATA-LENS∶∶SHORTCUT macro. (macro)
+        • *note slice: go to the DATA-LENS∶∶SLICE function. (function)
+        • *note sorted: go to the DATA-LENS∶∶SORTED function. (function)
+        • *note splice-elt: go to the DATA-LENS∶∶SPLICE-ELT function.
+          (function)
+        • *note suffixp: go to the DATA-LENS∶∶SUFFIXP function.
+          (function)
+        • *note transform-elt: go to the DATA-LENS∶∶TRANSFORM-ELT
+          function. (function)
+        • *note transform-head: go to the DATA-LENS∶∶TRANSFORM-HEAD
+          function. (function)
+        • *note transform-tail: go to the DATA-LENS∶∶TRANSFORM-TAIL
+          function. (function)
+        • *note zipping: go to the DATA-LENS∶∶ZIPPING function.
+          (function)
+        • *note •: go to the DATA-LENS∶∶• macro. (macro)
+*Internal Definitions*
+        • *note =>>: go to the DATA-LENS∶∶=>> function. (function)
+        • *note cons-new: go to the DATA-LENS∶∶CONS-NEW function.
+          (function)
+        • *note deduplicate: go to the DATA-LENS∶∶DEDUPLICATE function.
+          (function)
+        • *note filler: go to the DATA-LENS∶∶FILLER function. (function)
+        • *note matching-list-reducer: go to the
+          DATA-LENS∶∶MATCHING-LIST-REDUCER function. (function)
+        • *note update: go to the DATA-LENS∶∶UPDATE function. (function)
+        • *note updatef: go to the DATA-LENS∶∶UPDATEF macro. (macro)
+
+
+File: data-lens-transducers.info,  Node: The data-lens․transducers package,  Next: The data-lens․package package,  Prev: The data-lens package,  Up: Packages
+
+3.2 data-lens.transducers
+=========================
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note catting: go to the DATA-LENS․TRANSDUCERS∶∶CATTING
+          function. (function)
+        • *note collecting: go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING
+          function. (function)
+        • *note compressing-runs: go to the
+          DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function. (function)
+        • *note deduping: go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING
+          function. (function)
+        • *note dropping: go to the DATA-LENS․TRANSDUCERS∶∶DROPPING
+          function. (function)
+        • *note filtering: go to the DATA-LENS․TRANSDUCERS∶∶FILTERING
+          function. (function)
+        • *note hash-table-select: go to the
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function. (function)
+        • *note iota: go to the DATA-LENS․TRANSDUCERS∶∶IOTA function.
+          (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function. (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class. (class)
+        • *note mapcatting: go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING
+          function. (function)
+        • *note mapping: go to the DATA-LENS․TRANSDUCERS∶∶MAPPING
+          function. (function)
+        • *note mv-filtering: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function. (function)
+        • *note mv-mapping: go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING
+          function. (function)
+        • *note mv-selecting: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function. (function)
+        • *note repeating: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING
+          macro. (macro)
+        • *note repeating*: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING*
+          function. (function)
+        • *note splitting: go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING
+          function. (function)
+        • *note taking: go to the DATA-LENS․TRANSDUCERS∶∶TAKING
+          function. (function)
+*Internal Definitions*
+        • *note comment: go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro.
+          (macro)
+        • *note eduction: go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION
+          function. (function)
+        • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic
+          function. (generic function)
+        • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method. (method)
+        • *note seq: go to the DATA-LENS․TRANSDUCERS∶∶SEQ function.
+          (function)
+        • *note transducer-lambda: go to the
+          DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro. (macro)
+
+
+File: data-lens-transducers.info,  Node: The data-lens․package package,  Next: The data-lens․lenses package,  Prev: The data-lens․transducers package,  Up: Packages
+
+3.3 data-lens.package
+=====================
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+
+
+File: data-lens-transducers.info,  Node: The data-lens․lenses package,  Next: The data-lens․transducers․internals package,  Prev: The data-lens․package package,  Up: Packages
+
+3.4 data-lens.lenses
+====================
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note make-alist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function. (function)
+        • *note make-hash-table-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function. (function)
+        • *note make-list-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-LIST-LENS function. (function)
+        • *note make-plist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function. (function)
+        • *note over: go to the DATA-LENS․LENSES∶∶OVER function.
+          (function)
+        • *note set: go to the DATA-LENS․LENSES∶∶SET function.
+          (function)
+        • *note view: go to the DATA-LENS․LENSES∶∶VIEW function.
+          (function)
+*Internal Definitions*
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE generic
+          function. (generic function)
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T
+          AROUND method. (method)
+        • *note constant-: go to the DATA-LENS․LENSES∶∶CONSTANT- class.
+          (class)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP generic function.
+          (generic function)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶LIST method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note identity-: go to the DATA-LENS․LENSES∶∶IDENTITY- class.
+          (class)
+        • *note make-alist-history-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function. (function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          generic function. (generic function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          generic function. (generic function)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note wrap-constant: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT
+          function. (function)
+        • *note wrap-identity: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY
+          function. (function)
+
+
+File: data-lens-transducers.info,  Node: The data-lens․transducers․internals package,  Prev: The data-lens․lenses package,  Up: Packages
+
+3.5 data-lens.transducers.internals
+===================================
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note exit-early: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function.
+          (function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          generic function. (generic function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method.
+          (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic
+          function. (generic function)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION
+          COMMON-LISP∶∶T method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T
+          COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function.
+          (generic function)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method. (method)
+        • *note transduce: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function.
+          (function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function.
+          (generic function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method.
+          (method)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶T method. (method)
+*Internal Definitions*
+     *note defdocumentation: go to the
+     DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro. (macro)
+
+
+File: data-lens-transducers.info,  Node: Definitions,  Next: Indexes,  Prev: Packages,  Up: Top
+
+4 Definitions
+*************
+
+Definitions are sorted by export status, category, package, and then by
+lexicographic order.
+
+* Menu:
+
+* Exported definitions::
+* Internal definitions::
+
+
+File: data-lens-transducers.info,  Node: Exported definitions,  Next: Internal definitions,  Prev: Definitions,  Up: Definitions
+
+4.1 Exported definitions
+========================
+
+* Menu:
+
+* Exported macros::
+* Exported functions::
+* Exported generic functions::
+* Exported classes::
+
+
+File: data-lens-transducers.info,  Node: Exported macros,  Next: Exported functions,  Prev: Exported definitions,  Up: Exported definitions
+
+4.1.1 Macros
+------------
+
+ -- Macro: <>1 &rest FUNS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: applying FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: defun-ct NAME (&rest ARGS) &body BODY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: let-fn (&rest BINDINGS) &body BODY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: repeating V
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+ -- Macro: shortcut NAME FUNCTION &body BOUND-ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: • &rest FUNS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens-transducers.info,  Node: Exported functions,  Next: Exported generic functions,  Prev: Exported macros,  Up: Exported definitions
+
+4.1.2 Functions
+---------------
+
+ -- Function: == TARGET &key TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: applicable-when FUN TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: catting ()
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: collecting COLLECTOR
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: combine-matching-lists &key TEST &allow-other-keys
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: compress-runs &key COLLECTOR TEST KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: compressing-runs &key TEST COMBINER
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: cumsum &key ADD-FUN KEY COMBINE ZERO
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: deduping &optional TEST
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: denest &key RESULT-TYPE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: derive DIFF-FUN &key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: dropping N
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: element NUM
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: exclude PRED
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: exit-early ACC
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+ -- Function: filtering FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: hash-table-select HASH-TABLE
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: include PRED
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: iota &key START STEP COUNT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+ -- Function: juxt FUN1 &rest R
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: key-transform FUN KEY-GET KEY-SET
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: lazy-sequence NEXT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+ -- Function: make-alist-lens KEY
+     A lens for updating a alist, discarding previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-hash-table-lens KEY
+     A lens for updating a hash-table, discarding previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-list-lens INDEX
+     A lens for updating a sequence
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-plist-lens KEY
+     A lens for updating a plist, preserving previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: mapcatting FUN
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: mapping FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: maximizing RELATION MEASURE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: mv-filtering FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: mv-mapping FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: mv-selecting FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: of-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: of-max-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: of-min-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: on FUN KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: over FUN &key RESULT-TYPE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: over LENS CB REC
+     Given a lens, a callback and a record, apply the lens to the
+     record, transform it by the callback and return copy of the record,
+     updated to contain the result of the callback.  This is the
+     fundamental operation on a lens and SET and VIEW are implemented in
+     terms of it.
+
+     A lens is any function of the form (lambda (fun) (lambda (rec)
+     ...))  that obeys the lens laws (where == is some reasonable
+     equality operator):
+
+     (== (view lens (set lens value rec))
+     value)
+
+     (== (set lens (view lens rec) rec)
+     rec)
+
+     (== (set lens value2 (set lens value1 rec))
+     (set lens value2 rec))
+
+     The inner lambda returns a functor that determines the policy to be
+     applied to the focused part.  By default, this only uses IDENTITY-
+     and CONSTANT- in order to implement the lens operations over, set
+     and view.
+
+     If these conditions are met, (over (data-lens:<>1 lens1 lens2) ...)
+     is equivalent to using lens2 to focus the part lens1 focuses: note
+     that composition is "backwards" from what one might expect: this is
+     because composition composes the wrapper lambdas and applies the
+     lambda that actually pulls a value out of a record later.
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: pick SELECTOR
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: regex-match REGEX
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: repeating* V &key COUNT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+ -- Function: set LENS V REC
+     Given a lens, a value and a rec, immutably update the rec to
+     contain the new value at the location focused by the lens.
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: slice START &optional END
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: sorted COMPARATOR &rest R &key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: splice-elt ELT FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: splitting &rest FUNCTIONS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: suffixp SUFFIX &key TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: taking N
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: transduce XF BUILD SEQ
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+ -- Function: transform-elt ELT FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: transform-head FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: transform-tail FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: view LENS REC
+     Given a lens and a rec, return the focused value
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: zipping RESULT-TYPE &key FILL-VALUE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens-transducers.info,  Node: Exported generic functions,  Next: Exported classes,  Prev: Exported functions,  Up: Exported definitions
+
+4.1.3 Generic functions
+-----------------------
+
+ -- Generic Function: extract-key MAP KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+     *Methods*
+           -- Method: extract-key (MAP hash-table) KEY
+           -- Method: extract-key (MAP list) KEY
+ -- Generic Function: functionalize IT
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+     *Methods*
+           -- Method: functionalize (IT hash-table)
+           -- Method: functionalize (IT vector)
+           -- Method: functionalize (IT symbol)
+           -- Method: functionalize (IT function)
+ -- Generic Function: init CLIENT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+     *Methods*
+           -- Method: init (IT (eql list-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: init (IT (eql vector-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: init (IT (eql hash-table-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+ -- Generic Function: reduce-generic SEQ FUNC INIT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+     *Methods*
+           -- Method: reduce-generic (SEQ lazy-sequence) (FUNC function)
+                    INIT
+               *Source*
+                    *note lazy-sequence.lisp: go to the
+                    data-lens/beta/transducers/lazy-sequence․lisp file.
+                    (file)
+           -- Method: reduce-generic (SEQ sequence) (FUNC function) INIT
+           -- Method: reduce-generic (SEQ sequence) (FUNC symbol) INIT
+           -- Method: reduce-generic SEQ (FUNC symbol) INIT
+           -- Method: reduce-generic (SEQ hash-table) (FUNC function)
+                    INIT
+ -- Generic Function: stepper CLIENT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+     *Methods*
+           -- Method: stepper (IT (eql list-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: stepper (IT (eql vector-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: stepper (IT (eql hash-table-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+ -- Generic Function: unwrap CLIENT OBJ
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+     *Methods*
+           -- Method: unwrap (IT (eql list-builder)) OBJ
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: unwrap CLIENT OBJ
+
+
+File: data-lens-transducers.info,  Node: Exported classes,  Prev: Exported generic functions,  Up: Exported definitions
+
+4.1.4 Classes
+-------------
+
+ -- Class: lazy-sequence ()
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note reduce-generic: go to the
+               DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+               DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE
+               COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method. (method)
+             • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+               DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method. (method)
+     *Direct slots*
+           -- Slot: %next
+               *Initargs*
+                    :next
+               *Readers*
+                    *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+                    generic function. (generic function)
+
+
+File: data-lens-transducers.info,  Node: Internal definitions,  Prev: Exported definitions,  Up: Definitions
+
+4.2 Internal definitions
+========================
+
+* Menu:
+
+* Internal macros::
+* Internal functions::
+* Internal generic functions::
+* Internal classes::
+
+
+File: data-lens-transducers.info,  Node: Internal macros,  Next: Internal functions,  Prev: Internal definitions,  Up: Internal definitions
+
+4.2.1 Macros
+------------
+
+ -- Macro: comment &body BODY
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Macro: defdocumentation NAME &body DOC-SPECS
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+ -- Macro: transducer-lambda &body ((TWO-ARG-ACC TWO-ARG-NEXT) &body
+          TWO-ARG-BODY)
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Macro: updatef PLACE FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens-transducers.info,  Node: Internal functions,  Next: Internal generic functions,  Prev: Internal macros,  Up: Internal definitions
+
+4.2.2 Functions
+---------------
+
+ -- Function: =>> FUN1 FUN2
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: cons-new &key TEST KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: deduplicate &optional TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: eduction XF SEQ
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: filler LENGTH1 LENGTH2 FILL-VALUE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: make-alist-history-lens KEY
+     A lens for updating a alist, preserving previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: matching-list-reducer TEST ACC NEXT
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: seq A B
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: update THING FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: wrap-constant V
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: wrap-identity V
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+
+
+File: data-lens-transducers.info,  Node: Internal generic functions,  Next: Internal classes,  Prev: Internal functions,  Up: Internal definitions
+
+4.2.3 Generic functions
+-----------------------
+
+ -- Generic Function: clone OBJ &rest NEW-INITARGS &key
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Methods*
+           -- Method: clone OBJ &rest NEW-INITARGS &key around
+ -- Generic Function: fmap FUNCTION DATA
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Methods*
+           -- Method: fmap FUNCTION (DATA identity-)
+           -- Method: fmap FUNCTION (DATA constant-)
+           -- Method: fmap FUNCTION (DATA list)
+           -- Method: fmap FUNCTION (DATA vector)
+ -- Generic Function: next OBJECT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Methods*
+           -- Method: next (LAZY-SEQUENCE lazy-sequence)
+               automatically generated reader method
+               *Source*
+                    *note lazy-sequence.lisp: go to the
+                    data-lens/beta/transducers/lazy-sequence․lisp file.
+                    (file)
+ -- Generic Function: unconstant OBJECT
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Methods*
+           -- Method: unconstant (CONSTANT- constant-)
+               automatically generated reader method
+               *Source*
+                    *note optics.lisp: go to the data-lens/optics․lisp
+                    file. (file)
+ -- Generic Function: unidentity OBJECT
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Methods*
+           -- Method: unidentity (IDENTITY- identity-)
+               automatically generated reader method
+               *Source*
+                    *note optics.lisp: go to the data-lens/optics․lisp
+                    file. (file)
+
+
+File: data-lens-transducers.info,  Node: Internal classes,  Prev: Internal generic functions,  Up: Internal definitions
+
+4.2.4 Classes
+-------------
+
+ -- Class: constant- ()
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP
+               COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method.
+               (method)
+             • print-object (method)
+             • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+               DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+     *Direct slots*
+           -- Slot: %v
+               *Initargs*
+                    :value
+               *Readers*
+                    *note unconstant: go to the
+                    DATA-LENS․LENSES∶∶UNCONSTANT generic function.
+                    (generic function)
+ -- Class: identity- ()
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP
+               COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method.
+               (method)
+             • print-object (method)
+             • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+               DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+     *Direct slots*
+           -- Slot: %v
+               *Initargs*
+                    :value
+               *Readers*
+                    *note unidentity: go to the
+                    DATA-LENS․LENSES∶∶UNIDENTITY generic function.
+                    (generic function)
+
+
+File: data-lens-transducers.info,  Node: Indexes,  Prev: Definitions,  Up: Top
+
+Appendix A Indexes
+******************
+
+* Menu:
+
+* Concept index::
+* Function index::
+* Variable index::
+* Data type index::
+
+
+File: data-lens-transducers.info,  Node: Concept index,  Next: Function index,  Prev: Indexes,  Up: Indexes
+
+A.1 Concepts
+============
+
+[index]
+* Menu:
+
+* data-lens.asd:                         The data-lens․asd file.
+                                                                (line 6)
+* data-lens/beta/transducers/lazy-sequence.lisp: The data-lens/beta/transducers/lazy-sequence․lisp file.
+                                                                (line 6)
+* data-lens/beta/transducers/package.lisp: The data-lens/beta/transducers/package․lisp file.
+                                                                (line 6)
+* data-lens/beta/transducers/transducer-protocol.lisp: The data-lens/beta/transducers/transducer-protocol․lisp file.
+                                                                (line 6)
+* data-lens/beta/transducers/transducers.lisp: The data-lens/beta/transducers/transducers․lisp file.
+                                                                (line 6)
+* data-lens/lens.lisp:                   The data-lens/lens․lisp file.
+                                                                (line 6)
+* data-lens/optics.lisp:                 The data-lens/optics․lisp file.
+                                                                (line 6)
+* data-lens/package.lisp:                The data-lens/package․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens.asd:             The data-lens․asd file.
+                                                                (line 6)
+* File, Lisp, data-lens/beta/transducers/lazy-sequence.lisp: The data-lens/beta/transducers/lazy-sequence․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/beta/transducers/package.lisp: The data-lens/beta/transducers/package․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/beta/transducers/transducer-protocol.lisp: The data-lens/beta/transducers/transducer-protocol․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/beta/transducers/transducers.lisp: The data-lens/beta/transducers/transducers․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/lens.lisp:       The data-lens/lens․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/optics.lisp:     The data-lens/optics․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/package.lisp:    The data-lens/package․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens.asd:              The data-lens․asd file.
+                                                                (line 6)
+* Lisp File, data-lens/beta/transducers/lazy-sequence.lisp: The data-lens/beta/transducers/lazy-sequence․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/beta/transducers/package.lisp: The data-lens/beta/transducers/package․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/beta/transducers/transducer-protocol.lisp: The data-lens/beta/transducers/transducer-protocol․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/beta/transducers/transducers.lisp: The data-lens/beta/transducers/transducers․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/lens.lisp:        The data-lens/lens․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/optics.lisp:      The data-lens/optics․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/package.lisp:     The data-lens/package․lisp file.
+                                                                (line 6)
+
+
+File: data-lens-transducers.info,  Node: Function index,  Next: Variable index,  Prev: Concept index,  Up: Indexes
+
+A.2 Functions
+=============
+
+[index]
+* Menu:
+
+* <>1:                                   Exported macros.     (line   6)
+* ==:                                    Exported functions.  (line   6)
+* =>>:                                   Internal functions.  (line   6)
+* •:                                     Exported macros.     (line  38)
+* applicable-when:                       Exported functions.  (line  11)
+* applying:                              Exported macros.     (line  11)
+* catting:                               Exported functions.  (line  16)
+* clone:                                 Internal generic functions.
+                                                              (line   6)
+* clone <1>:                             Internal generic functions.
+                                                              (line  13)
+* collecting:                            Exported functions.  (line  23)
+* combine-matching-lists:                Exported functions.  (line  30)
+* comment:                               Internal macros.     (line   6)
+* compress-runs:                         Exported functions.  (line  35)
+* compressing-runs:                      Exported functions.  (line  40)
+* cons-new:                              Internal functions.  (line  11)
+* cumsum:                                Exported functions.  (line  47)
+* deduping:                              Exported functions.  (line  52)
+* deduplicate:                           Internal functions.  (line  16)
+* defdocumentation:                      Internal macros.     (line  13)
+* defun-ct:                              Exported macros.     (line  16)
+* denest:                                Exported functions.  (line  59)
+* derive:                                Exported functions.  (line  64)
+* dropping:                              Exported functions.  (line  69)
+* eduction:                              Internal functions.  (line  21)
+* element:                               Exported functions.  (line  76)
+* exclude:                               Exported functions.  (line  81)
+* exit-early:                            Exported functions.  (line  86)
+* extract-key:                           Exported generic functions.
+                                                              (line   6)
+* extract-key <1>:                       Exported generic functions.
+                                                              (line  12)
+* extract-key <2>:                       Exported generic functions.
+                                                              (line  13)
+* filler:                                Internal functions.  (line  28)
+* filtering:                             Exported functions.  (line  94)
+* fmap:                                  Internal generic functions.
+                                                              (line  14)
+* fmap <1>:                              Internal generic functions.
+                                                              (line  21)
+* fmap <2>:                              Internal generic functions.
+                                                              (line  22)
+* fmap <3>:                              Internal generic functions.
+                                                              (line  23)
+* fmap <4>:                              Internal generic functions.
+                                                              (line  24)
+* Function, ==:                          Exported functions.  (line   7)
+* Function, =>>:                         Internal functions.  (line   7)
+* Function, applicable-when:             Exported functions.  (line  12)
+* Function, catting:                     Exported functions.  (line  17)
+* Function, collecting:                  Exported functions.  (line  24)
+* Function, combine-matching-lists:      Exported functions.  (line  31)
+* Function, compress-runs:               Exported functions.  (line  36)
+* Function, compressing-runs:            Exported functions.  (line  41)
+* Function, cons-new:                    Internal functions.  (line  12)
+* Function, cumsum:                      Exported functions.  (line  48)
+* Function, deduping:                    Exported functions.  (line  53)
+* Function, deduplicate:                 Internal functions.  (line  17)
+* Function, denest:                      Exported functions.  (line  60)
+* Function, derive:                      Exported functions.  (line  65)
+* Function, dropping:                    Exported functions.  (line  70)
+* Function, eduction:                    Internal functions.  (line  22)
+* Function, element:                     Exported functions.  (line  77)
+* Function, exclude:                     Exported functions.  (line  82)
+* Function, exit-early:                  Exported functions.  (line  87)
+* Function, filler:                      Internal functions.  (line  29)
+* Function, filtering:                   Exported functions.  (line  95)
+* Function, hash-table-select:           Exported functions.  (line 102)
+* Function, include:                     Exported functions.  (line 109)
+* Function, iota:                        Exported functions.  (line 114)
+* Function, juxt:                        Exported functions.  (line 121)
+* Function, key:                         Exported functions.  (line 126)
+* Function, key-transform:               Exported functions.  (line 131)
+* Function, lazy-sequence:               Exported functions.  (line 136)
+* Function, make-alist-history-lens:     Internal functions.  (line  34)
+* Function, make-alist-lens:             Exported functions.  (line 143)
+* Function, make-hash-table-lens:        Exported functions.  (line 150)
+* Function, make-list-lens:              Exported functions.  (line 157)
+* Function, make-plist-lens:             Exported functions.  (line 164)
+* Function, mapcatting:                  Exported functions.  (line 171)
+* Function, mapping:                     Exported functions.  (line 178)
+* Function, matching-list-reducer:       Internal functions.  (line  41)
+* Function, maximizing:                  Exported functions.  (line 185)
+* Function, mv-filtering:                Exported functions.  (line 190)
+* Function, mv-mapping:                  Exported functions.  (line 197)
+* Function, mv-selecting:                Exported functions.  (line 204)
+* Function, of-length:                   Exported functions.  (line 211)
+* Function, of-max-length:               Exported functions.  (line 216)
+* Function, of-min-length:               Exported functions.  (line 221)
+* Function, on:                          Exported functions.  (line 226)
+* Function, over:                        Exported functions.  (line 231)
+* Function, over <1>:                    Exported functions.  (line 236)
+* Function, pick:                        Exported functions.  (line 271)
+* Function, regex-match:                 Exported functions.  (line 276)
+* Function, repeating*:                  Exported functions.  (line 281)
+* Function, seq:                         Internal functions.  (line  46)
+* Function, set:                         Exported functions.  (line 288)
+* Function, slice:                       Exported functions.  (line 296)
+* Function, sorted:                      Exported functions.  (line 301)
+* Function, splice-elt:                  Exported functions.  (line 306)
+* Function, splitting:                   Exported functions.  (line 311)
+* Function, suffixp:                     Exported functions.  (line 318)
+* Function, taking:                      Exported functions.  (line 323)
+* Function, transduce:                   Exported functions.  (line 330)
+* Function, transform-elt:               Exported functions.  (line 338)
+* Function, transform-head:              Exported functions.  (line 343)
+* Function, transform-tail:              Exported functions.  (line 348)
+* Function, update:                      Internal functions.  (line  53)
+* Function, view:                        Exported functions.  (line 353)
+* Function, wrap-constant:               Internal functions.  (line  58)
+* Function, wrap-identity:               Internal functions.  (line  64)
+* Function, zipping:                     Exported functions.  (line 360)
+* functionalize:                         Exported generic functions.
+                                                              (line  14)
+* functionalize <1>:                     Exported generic functions.
+                                                              (line  20)
+* functionalize <2>:                     Exported generic functions.
+                                                              (line  21)
+* functionalize <3>:                     Exported generic functions.
+                                                              (line  22)
+* functionalize <4>:                     Exported generic functions.
+                                                              (line  23)
+* Generic Function, clone:               Internal generic functions.
+                                                              (line   7)
+* Generic Function, extract-key:         Exported generic functions.
+                                                              (line   7)
+* Generic Function, fmap:                Internal generic functions.
+                                                              (line  15)
+* Generic Function, functionalize:       Exported generic functions.
+                                                              (line  15)
+* Generic Function, init:                Exported generic functions.
+                                                              (line  25)
+* Generic Function, next:                Internal generic functions.
+                                                              (line  26)
+* Generic Function, reduce-generic:      Exported generic functions.
+                                                              (line  49)
+* Generic Function, stepper:             Exported generic functions.
+                                                              (line  69)
+* Generic Function, unconstant:          Internal generic functions.
+                                                              (line  37)
+* Generic Function, unidentity:          Internal generic functions.
+                                                              (line  46)
+* Generic Function, unwrap:              Exported generic functions.
+                                                              (line  93)
+* hash-table-select:                     Exported functions.  (line 101)
+* include:                               Exported functions.  (line 108)
+* init:                                  Exported generic functions.
+                                                              (line  24)
+* init <1>:                              Exported generic functions.
+                                                              (line  33)
+* init <2>:                              Exported generic functions.
+                                                              (line  38)
+* init <3>:                              Exported generic functions.
+                                                              (line  43)
+* iota:                                  Exported functions.  (line 113)
+* juxt:                                  Exported functions.  (line 120)
+* key:                                   Exported functions.  (line 125)
+* key-transform:                         Exported functions.  (line 130)
+* lazy-sequence:                         Exported functions.  (line 135)
+* let-fn:                                Exported macros.     (line  21)
+* Macro, <>1:                            Exported macros.     (line   7)
+* Macro, applying:                       Exported macros.     (line  12)
+* Macro, comment:                        Internal macros.     (line   7)
+* Macro, defdocumentation:               Internal macros.     (line  14)
+* Macro, defun-ct:                       Exported macros.     (line  17)
+* Macro, let-fn:                         Exported macros.     (line  22)
+* Macro, repeating:                      Exported macros.     (line  27)
+* Macro, shortcut:                       Exported macros.     (line  34)
+* Macro, transducer-lambda:              Internal macros.     (line  23)
+* Macro, updatef:                        Internal macros.     (line  30)
+* Macro, •:                              Exported macros.     (line  39)
+* make-alist-history-lens:               Internal functions.  (line  33)
+* make-alist-lens:                       Exported functions.  (line 142)
+* make-hash-table-lens:                  Exported functions.  (line 149)
+* make-list-lens:                        Exported functions.  (line 156)
+* make-plist-lens:                       Exported functions.  (line 163)
+* mapcatting:                            Exported functions.  (line 170)
+* mapping:                               Exported functions.  (line 177)
+* matching-list-reducer:                 Internal functions.  (line  40)
+* maximizing:                            Exported functions.  (line 184)
+* Method, clone:                         Internal generic functions.
+                                                              (line  14)
+* Method, extract-key:                   Exported generic functions.
+                                                              (line  13)
+* Method, extract-key <1>:               Exported generic functions.
+                                                              (line  14)
+* Method, fmap:                          Internal generic functions.
+                                                              (line  22)
+* Method, fmap <1>:                      Internal generic functions.
+                                                              (line  23)
+* Method, fmap <2>:                      Internal generic functions.
+                                                              (line  24)
+* Method, fmap <3>:                      Internal generic functions.
+                                                              (line  25)
+* Method, functionalize:                 Exported generic functions.
+                                                              (line  21)
+* Method, functionalize <1>:             Exported generic functions.
+                                                              (line  22)
+* Method, functionalize <2>:             Exported generic functions.
+                                                              (line  23)
+* Method, functionalize <3>:             Exported generic functions.
+                                                              (line  24)
+* Method, init:                          Exported generic functions.
+                                                              (line  34)
+* Method, init <1>:                      Exported generic functions.
+                                                              (line  39)
+* Method, init <2>:                      Exported generic functions.
+                                                              (line  44)
+* Method, next:                          Internal generic functions.
+                                                              (line  31)
+* Method, reduce-generic:                Exported generic functions.
+                                                              (line  59)
+* Method, reduce-generic <1>:            Exported generic functions.
+                                                              (line  64)
+* Method, reduce-generic <2>:            Exported generic functions.
+                                                              (line  65)
+* Method, reduce-generic <3>:            Exported generic functions.
+                                                              (line  66)
+* Method, reduce-generic <4>:            Exported generic functions.
+                                                              (line  68)
+* Method, stepper:                       Exported generic functions.
+                                                              (line  78)
+* Method, stepper <1>:                   Exported generic functions.
+                                                              (line  83)
+* Method, stepper <2>:                   Exported generic functions.
+                                                              (line  88)
+* Method, unconstant:                    Internal generic functions.
+                                                              (line  41)
+* Method, unidentity:                    Internal generic functions.
+                                                              (line  50)
+* Method, unwrap:                        Exported generic functions.
+                                                              (line 102)
+* Method, unwrap <1>:                    Exported generic functions.
+                                                              (line 107)
+* mv-filtering:                          Exported functions.  (line 189)
+* mv-mapping:                            Exported functions.  (line 196)
+* mv-selecting:                          Exported functions.  (line 203)
+* next:                                  Internal generic functions.
+                                                              (line  25)
+* next <1>:                              Internal generic functions.
+                                                              (line  30)
+* of-length:                             Exported functions.  (line 210)
+* of-max-length:                         Exported functions.  (line 215)
+* of-min-length:                         Exported functions.  (line 220)
+* on:                                    Exported functions.  (line 225)
+* over:                                  Exported functions.  (line 230)
+* over <1>:                              Exported functions.  (line 235)
+* pick:                                  Exported functions.  (line 270)
+* reduce-generic:                        Exported generic functions.
+                                                              (line  48)
+* reduce-generic <1>:                    Exported generic functions.
+                                                              (line  57)
+* reduce-generic <2>:                    Exported generic functions.
+                                                              (line  63)
+* reduce-generic <3>:                    Exported generic functions.
+                                                              (line  64)
+* reduce-generic <4>:                    Exported generic functions.
+                                                              (line  65)
+* reduce-generic <5>:                    Exported generic functions.
+                                                              (line  66)
+* regex-match:                           Exported functions.  (line 275)
+* repeating:                             Exported macros.     (line  26)
+* repeating*:                            Exported functions.  (line 280)
+* seq:                                   Internal functions.  (line  45)
+* set:                                   Exported functions.  (line 287)
+* shortcut:                              Exported macros.     (line  33)
+* slice:                                 Exported functions.  (line 295)
+* sorted:                                Exported functions.  (line 300)
+* splice-elt:                            Exported functions.  (line 305)
+* splitting:                             Exported functions.  (line 310)
+* stepper:                               Exported generic functions.
+                                                              (line  68)
+* stepper <1>:                           Exported generic functions.
+                                                              (line  77)
+* stepper <2>:                           Exported generic functions.
+                                                              (line  82)
+* stepper <3>:                           Exported generic functions.
+                                                              (line  87)
+* suffixp:                               Exported functions.  (line 317)
+* taking:                                Exported functions.  (line 322)
+* transduce:                             Exported functions.  (line 329)
+* transducer-lambda:                     Internal macros.     (line  21)
+* transform-elt:                         Exported functions.  (line 337)
+* transform-head:                        Exported functions.  (line 342)
+* transform-tail:                        Exported functions.  (line 347)
+* unconstant:                            Internal generic functions.
+                                                              (line  36)
+* unconstant <1>:                        Internal generic functions.
+                                                              (line  40)
+* unidentity:                            Internal generic functions.
+                                                              (line  45)
+* unidentity <1>:                        Internal generic functions.
+                                                              (line  49)
+* unwrap:                                Exported generic functions.
+                                                              (line  92)
+* unwrap <1>:                            Exported generic functions.
+                                                              (line 101)
+* unwrap <2>:                            Exported generic functions.
+                                                              (line 106)
+* update:                                Internal functions.  (line  52)
+* updatef:                               Internal macros.     (line  29)
+* view:                                  Exported functions.  (line 352)
+* wrap-constant:                         Internal functions.  (line  57)
+* wrap-identity:                         Internal functions.  (line  63)
+* zipping:                               Exported functions.  (line 359)
+
+
+File: data-lens-transducers.info,  Node: Variable index,  Next: Data type index,  Prev: Function index,  Up: Indexes
+
+A.3 Variables
+=============
+
+[index]
+* Menu:
+
+* %next:                                 Exported classes.     (line 23)
+* %v:                                    Internal classes.     (line 22)
+* %v <1>:                                Internal classes.     (line 45)
+* Slot, %next:                           Exported classes.     (line 24)
+* Slot, %v:                              Internal classes.     (line 23)
+* Slot, %v <1>:                          Internal classes.     (line 46)
+
+
+File: data-lens-transducers.info,  Node: Data type index,  Prev: Variable index,  Up: Indexes
+
+A.4 Data types
+==============
+
+[index]
+* Menu:
+
+* Class, constant-:                      Internal classes.     (line  7)
+* Class, identity-:                      Internal classes.     (line 30)
+* Class, lazy-sequence:                  Exported classes.     (line  7)
+* constant-:                             Internal classes.     (line  6)
+* data-lens:                             The data-lens system. (line  6)
+* data-lens <1>:                         The data-lens package.
+                                                               (line  6)
+* data-lens.lenses:                      The data-lens․lenses package.
+                                                               (line  6)
+* data-lens.package:                     The data-lens․package package.
+                                                               (line  6)
+* data-lens.transducers:                 The data-lens․transducers package.
+                                                               (line  6)
+* data-lens.transducers.internals:       The data-lens․transducers․internals package.
+                                                               (line  6)
+* data-lens/beta/transducers:            The data-lens/beta/transducers system.
+                                                               (line  6)
+* identity-:                             Internal classes.     (line 29)
+* lazy-sequence:                         Exported classes.     (line  6)
+* Package, data-lens:                    The data-lens package.
+                                                               (line  6)
+* Package, data-lens.lenses:             The data-lens․lenses package.
+                                                               (line  6)
+* Package, data-lens.package:            The data-lens․package package.
+                                                               (line  6)
+* Package, data-lens.transducers:        The data-lens․transducers package.
+                                                               (line  6)
+* Package, data-lens.transducers.internals: The data-lens․transducers․internals package.
+                                                               (line  6)
+* System, data-lens:                     The data-lens system. (line  6)
+* System, data-lens/beta/transducers:    The data-lens/beta/transducers system.
+                                                               (line  6)
+
+
+
+Tag Table:
+Node: Top287
+Node: Systems853
+Node: The data-lens/beta/transducers system1109
+Ref: go to the data-lens/beta/transducers system1313
+Node: The data-lens system2144
+Ref: go to the data-lens system2298
+Node: Files2918
+Node: Lisp files3142
+Node: The data-lens․asd file3966
+Ref: go to the data-lens․asd file4171
+Node: The data-lens/beta/transducers/package․lisp file4388
+Ref: go to the data-lens/beta/transducers/package․lisp file4697
+Node: The data-lens/beta/transducers/transducer-protocol․lisp file5263
+Ref: go to the data-lens/beta/transducers/transducer-protocol․lisp file5626
+Node: The data-lens/beta/transducers/transducers․lisp file7890
+Ref: go to the data-lens/beta/transducers/transducers․lisp file8243
+Node: The data-lens/beta/transducers/lazy-sequence․lisp file11770
+Ref: go to the data-lens/beta/transducers/lazy-sequence․lisp file12098
+Node: The data-lens/package․lisp file13305
+Ref: go to the data-lens/package․lisp file13565
+Node: The data-lens/optics․lisp file14092
+Ref: go to the data-lens/optics․lisp file14324
+Node: The data-lens/lens․lisp file17019
+Ref: go to the data-lens/lens․lisp file17205
+Node: Packages22124
+Node: The data-lens package22622
+Ref: go to the DATA-LENS package22793
+Node: The data-lens․transducers package27666
+Ref: go to the DATA-LENS․TRANSDUCERS package27884
+Node: The data-lens․package package30835
+Ref: go to the DATA-LENS․PACKAGE package31054
+Node: The data-lens․lenses package31187
+Ref: go to the DATA-LENS․LENSES package31416
+Node: The data-lens․transducers․internals package34305
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS package34524
+Node: Definitions38129
+Node: Exported definitions38411
+Node: Exported macros38699
+Ref: go to the DATA-LENS∶∶<>1 macro38895
+Ref: go to the DATA-LENS∶∶APPLYING macro39087
+Ref: go to the DATA-LENS∶∶DEFUN-CT macro39293
+Ref: go to the DATA-LENS∶∶LET-FN macro39496
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro39676
+Ref: go to the DATA-LENS∶∶SHORTCUT macro39965
+Ref: go to the DATA-LENS∶∶• macro40148
+Node: Exported functions40306
+Ref: go to the DATA-LENS∶∶== function40522
+Ref: go to the DATA-LENS∶∶APPLICABLE-WHEN function40718
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶CATTING function40900
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function41169
+Ref: go to the DATA-LENS∶∶COMBINE-MATCHING-LISTS function41468
+Ref: go to the DATA-LENS∶∶COMPRESS-RUNS function41677
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function41884
+Ref: go to the DATA-LENS∶∶CUMSUM function42169
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function42364
+Ref: go to the DATA-LENS∶∶DENEST function42636
+Ref: go to the DATA-LENS∶∶DERIVE function42832
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function43014
+Ref: go to the DATA-LENS∶∶ELEMENT function43274
+Ref: go to the DATA-LENS∶∶EXCLUDE function43458
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function43644
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function43970
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function44247
+Ref: go to the DATA-LENS∶∶INCLUDE function44508
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶IOTA function44706
+Ref: go to the DATA-LENS∶∶JUXT function44976
+Ref: go to the DATA-LENS∶∶KEY function45155
+Ref: go to the DATA-LENS∶∶KEY-TRANSFORM function45360
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function45550
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function45822
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function46109
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-LIST-LENS function46397
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function46654
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function46931
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function47207
+Ref: go to the DATA-LENS∶∶MAXIMIZING function47483
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function47687
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function47966
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function48247
+Ref: go to the DATA-LENS∶∶OF-LENGTH function48509
+Ref: go to the DATA-LENS∶∶OF-MAX-LENGTH function48698
+Ref: go to the DATA-LENS∶∶OF-MIN-LENGTH function48887
+Ref: go to the DATA-LENS∶∶ON function49069
+Ref: go to the DATA-LENS∶∶OVER function49266
+Ref: go to the DATA-LENS․LENSES∶∶OVER function49454
+Ref: go to the DATA-LENS∶∶PICK function50892
+Ref: go to the DATA-LENS∶∶REGEX-MATCH function51081
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function51276
+Ref: go to the DATA-LENS․LENSES∶∶SET function51543
+Ref: go to the DATA-LENS∶∶SLICE function51900
+Ref: go to the DATA-LENS∶∶SORTED function52106
+Ref: go to the DATA-LENS∶∶SPLICE-ELT function52296
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING function52493
+Ref: go to the DATA-LENS∶∶SUFFIXP function52766
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶TAKING function52946
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function53217
+Ref: go to the DATA-LENS∶∶TRANSFORM-ELT function53535
+Ref: go to the DATA-LENS∶∶TRANSFORM-HEAD function53725
+Ref: go to the DATA-LENS∶∶TRANSFORM-TAIL function53915
+Ref: go to the DATA-LENS․LENSES∶∶VIEW function54100
+Ref: go to the DATA-LENS∶∶ZIPPING function54391
+Node: Exported generic functions54549
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY generic function54790
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method55017
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶LIST COMMON-LISP∶∶T method55066
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE generic function55105
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method55329
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method55377
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method55425
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method55475
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT generic function55509
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method55857
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method56087
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method56321
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function56549
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method56944
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method57198
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method57269
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method57329
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method57424
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function57461
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method57812
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method58045
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method58282
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function58499
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method58853
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method59070
+Node: Exported classes59071
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class59251
+Node: Internal definitions60232
+Node: Internal macros60500
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro60700
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro60983
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro61358
+Ref: go to the DATA-LENS∶∶UPDATEF macro61632
+Node: Internal functions61790
+Ref: go to the DATA-LENS∶∶=>> function62000
+Ref: go to the DATA-LENS∶∶CONS-NEW function62194
+Ref: go to the DATA-LENS∶∶DEDUPLICATE function62392
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function62579
+Ref: go to the DATA-LENS∶∶FILLER function62861
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function63060
+Ref: go to the DATA-LENS∶∶MATCHING-LIST-REDUCER function63358
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶SEQ function63537
+Ref: go to the DATA-LENS∶∶UPDATE function63813
+Ref: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT function64000
+Ref: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY function64217
+Node: Internal generic functions64405
+Ref: go to the DATA-LENS․LENSES∶∶CLONE generic function64660
+Ref: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T AROUND method64925
+Ref: go to the DATA-LENS․LENSES∶∶FMAP generic function64966
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method65221
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method65274
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶LIST method65322
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶VECTOR method65372
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function65406
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method65585
+Ref: go to the DATA-LENS․LENSES∶∶UNCONSTANT generic function65859
+Ref: go to the DATA-LENS․LENSES∶∶UNCONSTANT DATA-LENS․LENSES∶∶CONSTANT- method66016
+Ref: go to the DATA-LENS․LENSES∶∶UNIDENTITY generic function66239
+Ref: go to the DATA-LENS․LENSES∶∶UNIDENTITY DATA-LENS․LENSES∶∶IDENTITY- method66396
+Node: Internal classes66580
+Ref: go to the DATA-LENS․LENSES∶∶CONSTANT- class66756
+Ref: go to the DATA-LENS․LENSES∶∶IDENTITY- class67684
+Node: Indexes68589
+Node: Concept index68796
+Node: Function index72945
+Node: Variable index95152
+Node: Data type index95761
+
+End Tag Table
+
+
+Local Variables:
+coding: utf-8
+End:
diff --git a/docs/data-lens-transducers.texi b/docs/data-lens-transducers.texi
new file mode 100644
index 0000000..02d0bc3
--- /dev/null
+++ b/docs/data-lens-transducers.texi
@@ -0,0 +1,2450 @@
+\input texinfo
+
+@c data-lens-transducers.texi --- Reference manual
+
+@c Copyright (C) 2021 Edward Langley
+
+@c This file is part of data-lens/beta/transducers.
+
+
+
+@c Commentary:
+
+@c Generated automatically by Declt version 3.0 "Montgomery Scott"
+@c on Wed Jan 06 14:24:28 2021 GMT-8.
+
+
+@c ====================================================================
+@c Header
+@c ====================================================================
+@c %**start of header
+@setfilename data-lens-transducers.info
+@settitle The data-lens/beta/transducers Reference Manual
+@afourpaper
+@documentencoding UTF-8
+@c %**end of header
+
+
+
+@c ====================================================================
+@c Format Specific Tweaks
+@c ====================================================================
+@tex
+%% Declt uses several Unicode characters to "reveal" blanks. This
+%% works fine in HTML or Info output, but TeX will have problems with
+%% these. The code below translates those characters to something that
+%% TeX can handle.
+
+%% U+23B5 (Bottom Square Bracket), used to reveal white spaces, is
+%% translated to its Computer Modern teletype version.
+\DeclareUnicodeCharacter{23B5}{{\tt\char'040}}
+
+%% U+21B5 (Downwards Arrow With Corner Leftwards), used to reveal
+%% carriage returns, is translated to \hookleftarrow in math mode.
+\DeclareUnicodeCharacter{21B5}{\ensuremath\hookleftarrow}
+
+%% U+21E5 (Rightwards Arrow To Bar), used to reveal tabs, is
+%% translated to something that looks similar, based on a rightarrow
+%% and a vertical bar from the math extension font.
+\DeclareUnicodeCharacter{21E5}{%
+  \ensuremath{\rightarrow\kern-.5em\mathchar\"130C}}
+
+
+%% Declt uses several Unicode characters to replace "fragile" ones in
+%% anchor names and references. These characters are chosen to resemble
+%% the original ones, without interfering with Info syntax. In TeX
+%% however, we can switch them back to the original versions, because
+%% cross-references are done differently. In theory, I think we could do
+%% something similar for HTML output (again, only the Info syntax poses
+%% problems), but I don't know how to do something similar to what's
+%% below.
+
+%% U+2024 (One Dot Leader) replaces periods.
+\DeclareUnicodeCharacter{2024}{.}
+
+%% U+2236 (Ratio) replaces colons.
+\DeclareUnicodeCharacter{2236}{:}
+
+%% U+2768 (Medium Left Parenthesis Ornament) replaces left parenthesis.
+\DeclareUnicodeCharacter{2768}{(}
+
+%% U+2769 (Medium Right Parenthesis Ornament) replaces right parenthesis.
+\DeclareUnicodeCharacter{2769}{)}
+
+%% U+214B (Turned Ampersand) replaces ampersands.
+\DeclareUnicodeCharacter{214B}{&}
+
+%% U+2216 (Set Minus) replaces backslashes.
+\DeclareUnicodeCharacter{2216}{\char"5C}
+
+%% The following ones are already defined in texinfo.tex so we have nothing
+%% more to do:
+%% U+201A (Single Low-9 Quotation Mark) replaces commas.
+%% U+2205 (Empty Set) replaces empty symbol names.
+
+@end tex
+
+
+
+@c ====================================================================
+@c Settings
+@c ====================================================================
+@setchapternewpage odd
+@documentdescription
+The data-lens/beta/transducers Reference Manual.
+@end documentdescription
+
+
+
+@c ====================================================================
+@c New Commands
+@c ====================================================================
+
+@c ---------------
+@c Indexing macros
+@c ---------------
+
+@c Packages
+@macro packageindex{name}
+@tpindex \name\
+@tpindex @r{Package, }\name\
+@end macro
+
+@c Systems
+@macro systemindex{name}
+@tpindex \name\
+@tpindex @r{System, }\name\
+@end macro
+
+@c Modules
+@macro moduleindex{name}
+@cindex @t{\name\}
+@cindex Module, @t{\name\}
+@end macro
+
+@c Other files
+@macro otherfileindex{name}
+@cindex @t{\name\}
+@cindex Other File, @t{\name\}
+@cindex File, other, @t{\name\}
+@end macro
+
+@c Lisp files
+@macro lispfileindex{name}
+@cindex @t{\name\}
+@cindex Lisp File, @t{\name\}
+@cindex File, Lisp, @t{\name\}
+@end macro
+
+@c C files
+@macro cfileindex{name}
+@cindex @t{\name\}
+@cindex C File, @t{\name\}
+@cindex File, C, @t{\name\}
+@end macro
+
+@c Java files
+@macro javafileindex{name}
+@cindex @t{\name\}
+@cindex Java File, @t{\name\}
+@cindex File, Java, @t{\name\}
+@end macro
+
+@c Static files
+@macro staticfileindex{name}
+@cindex @t{\name\}
+@cindex Static File, @t{\name\}
+@cindex File, static, @t{\name\}
+@end macro
+
+@c Doc files
+@macro docfileindex{name}
+@cindex @t{\name\}
+@cindex Doc File, @t{\name\}
+@cindex File, doc, @t{\name\}
+@end macro
+
+@c HTML files
+@macro htmlfileindex{name}
+@cindex @t{\name\}
+@cindex HTML File, @t{\name\}
+@cindex File, html, @t{\name\}
+@end macro
+
+@c The following macros are meant to be used within @defxxx environments.
+@c Texinfo performs half the indexing job and we do the other half.
+
+@c Constants
+@macro constantsubindex{name}
+@vindex @r{Constant, }\name\
+@end macro
+
+@c Special variables
+@macro specialsubindex{name}
+@vindex @r{Special Variable, }\name\
+@end macro
+
+@c Symbol macros
+@macro symbolmacrosubindex{name}
+@vindex @r{Symbol Macro, }\name\
+@end macro
+
+@c Slots
+@macro slotsubindex{name}
+@vindex @r{Slot, }\name\
+@end macro
+
+@c Macros
+@macro macrosubindex{name}
+@findex @r{Macro, }\name\
+@end macro
+
+@c Compiler Macros
+@macro compilermacrosubindex{name}
+@findex @r{Compiler Macro, }\name\
+@end macro
+
+@c Functions
+@macro functionsubindex{name}
+@findex @r{Function, }\name\
+@end macro
+
+@c Methods
+@macro methodsubindex{name}
+@findex @r{Method, }\name\
+@end macro
+
+@c Generic Functions
+@macro genericsubindex{name}
+@findex @r{Generic Function, }\name\
+@end macro
+
+@c Setf Expanders
+@macro setfexpandersubindex{name}
+@findex @r{Setf Expander, }\name\
+@end macro
+
+@c Method Combinations
+@macro shortcombinationsubindex{name}
+@tpindex @r{Short Method Combination, }\name\
+@tpindex @r{Method Combination, Short, }\name\
+@end macro
+
+@macro longcombinationsubindex{name}
+@tpindex @r{Long Method Combination, }\name\
+@tpindex @r{Method Combination, Long, }\name\
+@end macro
+
+@c Conditions
+@macro conditionsubindex{name}
+@tpindex @r{Condition, }\name\
+@end macro
+
+@c Structures
+@macro structuresubindex{name}
+@tpindex @r{Structure, }\name\
+@end macro
+
+@c Types
+@macro typesubindex{name}
+@tpindex @r{Type, }\name\
+@end macro
+
+@c Classes
+@macro classsubindex{name}
+@tpindex @r{Class, }\name\
+@end macro
+
+
+
+@c ====================================================================
+@c Info Category and Directory
+@c ====================================================================
+@dircategory Common Lisp
+@direntry
+* data-lens/beta/transducers Reference: (data-lens-transducers). The data-lens/beta/transducers Reference Manual.
+@end direntry
+
+
+
+@c ====================================================================
+@c Title Page
+@c ====================================================================
+@titlepage
+@title The data-lens/beta/transducers Reference Manual
+@subtitle A collection of transducers to reduce stream-manipulation overhead
+
+@author Edward Langley <@email{el-cl@atchar{}elangley.org}>
+
+@page
+@quotation
+This manual was generated automatically by Declt 3.0 "Montgomery Scott" on Wed Jan 06 14:24:28 2021 GMT-8.
+@end quotation
+@end titlepage
+
+
+
+@c ====================================================================
+@c Table of Contents
+@c ====================================================================
+@contents
+
+
+
+@c ====================================================================
+@c Top
+@c ====================================================================
+@ifnottex
+@node Top, Systems, (dir), (dir)
+@top The data-lens/beta/transducers Reference Manual
+This is the data-lens/beta/transducers Reference Manual,
+generated automatically by Declt version 3.0 "Montgomery Scott"
+on Wed Jan 06 14:24:28 2021 GMT-8.
+
+@menu
+* Systems:: The systems documentation
+* Files:: The files documentation
+* Packages:: The packages documentation
+* Definitions:: The symbols documentation
+* Indexes:: Concepts, functions, variables and data types
+@end menu
+@end ifnottex
+
+
+
+@c ====================================================================
+@c Systems
+@c ====================================================================
+@node Systems, Files, Top, Top
+@chapter Systems
+The main system appears first, followed by any subsystem dependency.
+
+@menu
+* The data-lens/beta/transducers system::
+* The data-lens system::
+@end menu
+
+
+@c -------------------------------------
+@c The data-lens/beta/transducers system
+@c -------------------------------------
+@node The data-lens/beta/transducers system, The data-lens system, Systems, Systems
+@section @t{data-lens/beta/transducers}
+@anchor{go to the data-lens/beta/transducers system}@c
+@systemindex{data-lens/beta/transducers}@c
+@table @strong
+@item Author
+Edward Langley <@email{el-cl@atchar{}elangley.org}>
+@item License
+MIT
+@item Description
+A collection of transducers to reduce stream-manipulation overhead
+@item Dependencies
+@itemize @bullet
+@item
+@ref{go to the data-lens system, , @t{data-lens}} (system)
+@item
+@t{alexandria}
+@end itemize
+@item Source
+@ref{go to the data-lens․asd file, , @t{data-lens.asd}} (file)
+@item Components
+@itemize @bullet
+@item
+@ref{go to the data-lens/beta/transducers/package․lisp file, , @t{package.lisp}} (file)
+@item
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@item
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@item
+@ref{go to the data-lens/beta/transducers/lazy-sequence․lisp file, , @t{lazy-sequence.lisp}} (file)
+@end itemize
+@end table
+
+
+@c --------------------
+@c The data-lens system
+@c --------------------
+@node The data-lens system, , The data-lens/beta/transducers system, Systems
+@section @t{data-lens}
+@anchor{go to the data-lens system}@c
+@systemindex{data-lens}@c
+@table @strong
+@item Author
+Edward Langley <@email{el-cl@atchar{}elangley.org}>
+@item License
+MIT
+@item Description
+Utilities for building data transformations from composable functions@comma{} modeled on lenses and transducers
+@item Dependencies
+@itemize @bullet
+@item
+@t{cl-ppcre}
+@item
+@t{alexandria}
+@item
+@t{serapeum}
+@end itemize
+@item Source
+@ref{go to the data-lens․asd file, , @t{data-lens.asd}} (file)
+@item Components
+@itemize @bullet
+@item
+@ref{go to the data-lens/package․lisp file, , @t{package.lisp}} (file)
+@item
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@item
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end itemize
+@end table
+
+
+
+@c ====================================================================
+@c Files
+@c ====================================================================
+@node Files, Packages, Systems, Top
+@chapter Files
+Files are sorted by type and then listed depth-first from the systems
+components trees.
+
+@menu
+* Lisp files::
+@end menu
+
+
+@c ----------
+@c Lisp files
+@c ----------
+@node Lisp files, , Files, Files
+@section Lisp
+@menu
+* The data-lens.asd file: The data-lens․asd file.
+* The data-lens/beta/transducers/package.lisp file: The data-lens/beta/transducers/package․lisp file.
+* The data-lens/beta/transducers/transducer-protocol.lisp file: The data-lens/beta/transducers/transducer-protocol․lisp file.
+* The data-lens/beta/transducers/transducers.lisp file: The data-lens/beta/transducers/transducers․lisp file.
+* The data-lens/beta/transducers/lazy-sequence.lisp file: The data-lens/beta/transducers/lazy-sequence․lisp file.
+* The data-lens/package.lisp file: The data-lens/package․lisp file.
+* The data-lens/optics.lisp file: The data-lens/optics․lisp file.
+* The data-lens/lens.lisp file: The data-lens/lens․lisp file.
+@end menu
+
+@node The data-lens․asd file, The data-lens/beta/transducers/package․lisp file, Lisp files, Lisp files
+@subsection @t{data-lens.asd}
+@anchor{go to the data-lens․asd file}@c
+@lispfileindex{data-lens.asd}@c
+@table @strong
+@item Location
+@t{data-lens.asd}
+@item Systems
+@itemize @bullet
+@item
+@ref{go to the data-lens/beta/transducers system, , @t{data-lens/beta/transducers}} (system)
+@item
+@ref{go to the data-lens system, , @t{data-lens}} (system)
+@end itemize
+@end table
+
+@node The data-lens/beta/transducers/package․lisp file, The data-lens/beta/transducers/transducer-protocol․lisp file, The data-lens․asd file, Lisp files
+@subsection @t{data-lens/beta/transducers/package.lisp}
+@anchor{go to the data-lens/beta/transducers/package․lisp file}@c
+@lispfileindex{data-lens/beta/transducers/package.lisp}@c
+@table @strong
+@item Parent
+@ref{go to the data-lens/beta/transducers system, , @t{data-lens/beta/transducers}} (system)
+@item Location
+@t{package.lisp}
+@item Packages
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item
+@ref{go to the DATA-LENS․PACKAGE package, , @t{data-lens.package}}
+@item
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@end itemize
+@end table
+
+@node The data-lens/beta/transducers/transducer-protocol․lisp file, The data-lens/beta/transducers/transducers․lisp file, The data-lens/beta/transducers/package․lisp file, Lisp files
+@subsection @t{data-lens/beta/transducers/transducer-protocol.lisp}
+@anchor{go to the data-lens/beta/transducers/transducer-protocol․lisp file}@c
+@lispfileindex{data-lens/beta/transducers/transducer-protocol.lisp}@c
+@table @strong
+@item Dependency
+@ref{go to the data-lens/beta/transducers/package․lisp file, , @t{package.lisp}} (file)
+@item Parent
+@ref{go to the data-lens/beta/transducers system, , @t{data-lens/beta/transducers}} (system)
+@item Location
+@t{transducer-protocol.lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function, , @t{exit-early}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT generic function, , @t{init}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function, , @t{reduce-generic}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function, , @t{stepper}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function, , @t{transduce}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function, , @t{unwrap}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method, , @t{unwrap}} (method)
+@end itemize
+@item Internal Definitions
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro, , @t{defdocumentation}} (macro)
+@end table
+
+@node The data-lens/beta/transducers/transducers․lisp file, The data-lens/beta/transducers/lazy-sequence․lisp file, The data-lens/beta/transducers/transducer-protocol․lisp file, Lisp files
+@subsection @t{data-lens/beta/transducers/transducers.lisp}
+@anchor{go to the data-lens/beta/transducers/transducers․lisp file}@c
+@lispfileindex{data-lens/beta/transducers/transducers.lisp}@c
+@table @strong
+@item Dependency
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@item Parent
+@ref{go to the data-lens/beta/transducers system, , @t{data-lens/beta/transducers}} (system)
+@item Location
+@t{transducers.lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶CATTING function, , @t{catting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function, , @t{collecting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function, , @t{compressing-runs}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function, , @t{deduping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function, , @t{dropping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function, , @t{filtering}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function, , @t{hash-table-select}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function, , @t{mapcatting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function, , @t{mapping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function, , @t{mv-filtering}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function, , @t{mv-mapping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function, , @t{mv-selecting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING function, , @t{splitting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶TAKING function, , @t{taking}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method, , @t{unwrap}} (method)
+@end itemize
+@item Internal Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro, , @t{comment}} (macro)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function, , @t{eduction}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶SEQ function, , @t{seq}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro, , @t{transducer-lambda}} (macro)
+@end itemize
+@end table
+
+@node The data-lens/beta/transducers/lazy-sequence․lisp file, The data-lens/package․lisp file, The data-lens/beta/transducers/transducers․lisp file, Lisp files
+@subsection @t{data-lens/beta/transducers/lazy-sequence.lisp}
+@anchor{go to the data-lens/beta/transducers/lazy-sequence․lisp file}@c
+@lispfileindex{data-lens/beta/transducers/lazy-sequence.lisp}@c
+@table @strong
+@item Dependency
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@item Parent
+@ref{go to the data-lens/beta/transducers system, , @t{data-lens/beta/transducers}} (system)
+@item Location
+@t{lazy-sequence.lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶IOTA function, , @t{iota}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function, , @t{lazy-sequence}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class, , @t{lazy-sequence}} (class)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro, , @t{repeating}} (macro)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function, , @t{repeating*}} (function)
+@end itemize
+@item Internal Definitions
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method, , @t{next}} (method)
+@end table
+
+@node The data-lens/package․lisp file, The data-lens/optics․lisp file, The data-lens/beta/transducers/lazy-sequence․lisp file, Lisp files
+@subsection @t{data-lens/package.lisp}
+@anchor{go to the data-lens/package․lisp file}@c
+@lispfileindex{data-lens/package.lisp}@c
+@table @strong
+@item Parent
+@ref{go to the data-lens system, , @t{data-lens}} (system)
+@item Location
+@t{package.lisp}
+@item Packages
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item
+@ref{go to the DATA-LENS․PACKAGE package, , @t{data-lens.package}}
+@item
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@end itemize
+@end table
+
+@node The data-lens/optics․lisp file, The data-lens/lens․lisp file, The data-lens/package․lisp file, Lisp files
+@subsection @t{data-lens/optics.lisp}
+@anchor{go to the data-lens/optics․lisp file}@c
+@lispfileindex{data-lens/optics.lisp}@c
+@table @strong
+@item Dependency
+@ref{go to the data-lens/package․lisp file, , @t{package.lisp}} (file)
+@item Parent
+@ref{go to the data-lens system, , @t{data-lens}} (system)
+@item Location
+@t{optics.lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function, , @t{make-alist-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function, , @t{make-hash-table-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-LIST-LENS function, , @t{make-list-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function, , @t{make-plist-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶OVER function, , @t{over}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶SET function, , @t{set}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶VIEW function, , @t{view}} (function)
+@end itemize
+@item Internal Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․LENSES∶∶CLONE generic function, , @t{clone}} (generic function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T AROUND method, , @t{clone}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶CONSTANT- class, , @t{constant-}} (class)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP generic function, , @t{fmap}} (generic function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method, , @t{fmap}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method, , @t{fmap}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶LIST method, , @t{fmap}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶VECTOR method, , @t{fmap}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶IDENTITY- class, , @t{identity-}} (class)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function, , @t{make-alist-history-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶UNCONSTANT DATA-LENS․LENSES∶∶CONSTANT- method, , @t{unconstant}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶UNIDENTITY DATA-LENS․LENSES∶∶IDENTITY- method, , @t{unidentity}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT function, , @t{wrap-constant}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY function, , @t{wrap-identity}} (function)
+@end itemize
+@end table
+
+@node The data-lens/lens․lisp file, , The data-lens/optics․lisp file, Lisp files
+@subsection @t{data-lens/lens.lisp}
+@anchor{go to the data-lens/lens․lisp file}@c
+@lispfileindex{data-lens/lens.lisp}@c
+@table @strong
+@item Dependency
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@item Parent
+@ref{go to the data-lens system, , @t{data-lens}} (system)
+@item Location
+@t{lens.lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS∶∶<>1 macro, , @t{<>1}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶== function, , @t{==}} (function)
+@item
+@ref{go to the DATA-LENS∶∶APPLICABLE-WHEN function, , @t{applicable-when}} (function)
+@item
+@ref{go to the DATA-LENS∶∶APPLYING macro, , @t{applying}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶COMBINE-MATCHING-LISTS function, , @t{combine-matching-lists}} (function)
+@item
+@ref{go to the DATA-LENS∶∶COMPRESS-RUNS function, , @t{compress-runs}} (function)
+@item
+@ref{go to the DATA-LENS∶∶CUMSUM function, , @t{cumsum}} (function)
+@item
+@ref{go to the DATA-LENS∶∶DEFUN-CT macro, , @t{defun-ct}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶DENEST function, , @t{denest}} (function)
+@item
+@ref{go to the DATA-LENS∶∶DERIVE function, , @t{derive}} (function)
+@item
+@ref{go to the DATA-LENS∶∶ELEMENT function, , @t{element}} (function)
+@item
+@ref{go to the DATA-LENS∶∶EXCLUDE function, , @t{exclude}} (function)
+@item
+@ref{go to the DATA-LENS∶∶EXTRACT-KEY generic function, , @t{extract-key}} (generic function)
+@item
+@ref{go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method, , @t{extract-key}} (method)
+@item
+@ref{go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶LIST COMMON-LISP∶∶T method, , @t{extract-key}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE generic function, , @t{functionalize}} (generic function)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶INCLUDE function, , @t{include}} (function)
+@item
+@ref{go to the DATA-LENS∶∶JUXT function, , @t{juxt}} (function)
+@item
+@ref{go to the DATA-LENS∶∶KEY function, , @t{key}} (function)
+@item
+@ref{go to the DATA-LENS∶∶KEY-TRANSFORM function, , @t{key-transform}} (function)
+@item
+@ref{go to the DATA-LENS∶∶LET-FN macro, , @t{let-fn}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶MAXIMIZING function, , @t{maximizing}} (function)
+@item
+@ref{go to the DATA-LENS∶∶OF-LENGTH function, , @t{of-length}} (function)
+@item
+@ref{go to the DATA-LENS∶∶OF-MAX-LENGTH function, , @t{of-max-length}} (function)
+@item
+@ref{go to the DATA-LENS∶∶OF-MIN-LENGTH function, , @t{of-min-length}} (function)
+@item
+@ref{go to the DATA-LENS∶∶ON function, , @t{on}} (function)
+@item
+@ref{go to the DATA-LENS∶∶OVER function, , @t{over}} (function)
+@item
+@ref{go to the DATA-LENS∶∶PICK function, , @t{pick}} (function)
+@item
+@ref{go to the DATA-LENS∶∶REGEX-MATCH function, , @t{regex-match}} (function)
+@item
+@ref{go to the DATA-LENS∶∶SHORTCUT macro, , @t{shortcut}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶SLICE function, , @t{slice}} (function)
+@item
+@ref{go to the DATA-LENS∶∶SORTED function, , @t{sorted}} (function)
+@item
+@ref{go to the DATA-LENS∶∶SPLICE-ELT function, , @t{splice-elt}} (function)
+@item
+@ref{go to the DATA-LENS∶∶SUFFIXP function, , @t{suffixp}} (function)
+@item
+@ref{go to the DATA-LENS∶∶TRANSFORM-ELT function, , @t{transform-elt}} (function)
+@item
+@ref{go to the DATA-LENS∶∶TRANSFORM-HEAD function, , @t{transform-head}} (function)
+@item
+@ref{go to the DATA-LENS∶∶TRANSFORM-TAIL function, , @t{transform-tail}} (function)
+@item
+@ref{go to the DATA-LENS∶∶ZIPPING function, , @t{zipping}} (function)
+@item
+@ref{go to the DATA-LENS∶∶• macro, , @t{•}} (macro)
+@end itemize
+@item Internal Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS∶∶=>> function, , @t{=>>}} (function)
+@item
+@ref{go to the DATA-LENS∶∶CONS-NEW function, , @t{cons-new}} (function)
+@item
+@ref{go to the DATA-LENS∶∶DEDUPLICATE function, , @t{deduplicate}} (function)
+@item
+@ref{go to the DATA-LENS∶∶FILLER function, , @t{filler}} (function)
+@item
+@ref{go to the DATA-LENS∶∶MATCHING-LIST-REDUCER function, , @t{matching-list-reducer}} (function)
+@item
+@ref{go to the DATA-LENS∶∶UPDATE function, , @t{update}} (function)
+@item
+@ref{go to the DATA-LENS∶∶UPDATEF macro, , @t{updatef}} (macro)
+@end itemize
+@end table
+
+
+
+@c ====================================================================
+@c Packages
+@c ====================================================================
+@node Packages, Definitions, Files, Top
+@chapter Packages
+Packages are listed by definition order.
+
+@menu
+* The data-lens package::
+* The data-lens.transducers package: The data-lens․transducers package.
+* The data-lens.package package: The data-lens․package package.
+* The data-lens.lenses package: The data-lens․lenses package.
+* The data-lens.transducers.internals package: The data-lens․transducers․internals package.
+@end menu
+
+
+@c ---------------------
+@c The data-lens package
+@c ---------------------
+@node The data-lens package, The data-lens․transducers package, Packages, Packages
+@section @t{data-lens}
+@anchor{go to the DATA-LENS package}@c
+@packageindex{data-lens}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/package․lisp file, , @t{package.lisp}} (file)
+@item Use List
+@t{common-lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS∶∶<>1 macro, , @t{<>1}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶== function, , @t{==}} (function)
+@item
+@ref{go to the DATA-LENS∶∶APPLICABLE-WHEN function, , @t{applicable-when}} (function)
+@item
+@ref{go to the DATA-LENS∶∶APPLYING macro, , @t{applying}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶COMBINE-MATCHING-LISTS function, , @t{combine-matching-lists}} (function)
+@item
+@ref{go to the DATA-LENS∶∶COMPRESS-RUNS function, , @t{compress-runs}} (function)
+@item
+@ref{go to the DATA-LENS∶∶CUMSUM function, , @t{cumsum}} (function)
+@item
+@ref{go to the DATA-LENS∶∶DEFUN-CT macro, , @t{defun-ct}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶DENEST function, , @t{denest}} (function)
+@item
+@ref{go to the DATA-LENS∶∶DERIVE function, , @t{derive}} (function)
+@item
+@ref{go to the DATA-LENS∶∶ELEMENT function, , @t{element}} (function)
+@item
+@ref{go to the DATA-LENS∶∶EXCLUDE function, , @t{exclude}} (function)
+@item
+@ref{go to the DATA-LENS∶∶EXTRACT-KEY generic function, , @t{extract-key}} (generic function)
+@item
+@ref{go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method, , @t{extract-key}} (method)
+@item
+@ref{go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶LIST COMMON-LISP∶∶T method, , @t{extract-key}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE generic function, , @t{functionalize}} (generic function)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶INCLUDE function, , @t{include}} (function)
+@item
+@ref{go to the DATA-LENS∶∶JUXT function, , @t{juxt}} (function)
+@item
+@ref{go to the DATA-LENS∶∶KEY function, , @t{key}} (function)
+@item
+@ref{go to the DATA-LENS∶∶KEY-TRANSFORM function, , @t{key-transform}} (function)
+@item
+@ref{go to the DATA-LENS∶∶LET-FN macro, , @t{let-fn}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶MAXIMIZING function, , @t{maximizing}} (function)
+@item
+@ref{go to the DATA-LENS∶∶OF-LENGTH function, , @t{of-length}} (function)
+@item
+@ref{go to the DATA-LENS∶∶OF-MAX-LENGTH function, , @t{of-max-length}} (function)
+@item
+@ref{go to the DATA-LENS∶∶OF-MIN-LENGTH function, , @t{of-min-length}} (function)
+@item
+@ref{go to the DATA-LENS∶∶ON function, , @t{on}} (function)
+@item
+@ref{go to the DATA-LENS∶∶OVER function, , @t{over}} (function)
+@item
+@ref{go to the DATA-LENS∶∶PICK function, , @t{pick}} (function)
+@item
+@ref{go to the DATA-LENS∶∶REGEX-MATCH function, , @t{regex-match}} (function)
+@item
+@ref{go to the DATA-LENS∶∶SHORTCUT macro, , @t{shortcut}} (macro)
+@item
+@ref{go to the DATA-LENS∶∶SLICE function, , @t{slice}} (function)
+@item
+@ref{go to the DATA-LENS∶∶SORTED function, , @t{sorted}} (function)
+@item
+@ref{go to the DATA-LENS∶∶SPLICE-ELT function, , @t{splice-elt}} (function)
+@item
+@ref{go to the DATA-LENS∶∶SUFFIXP function, , @t{suffixp}} (function)
+@item
+@ref{go to the DATA-LENS∶∶TRANSFORM-ELT function, , @t{transform-elt}} (function)
+@item
+@ref{go to the DATA-LENS∶∶TRANSFORM-HEAD function, , @t{transform-head}} (function)
+@item
+@ref{go to the DATA-LENS∶∶TRANSFORM-TAIL function, , @t{transform-tail}} (function)
+@item
+@ref{go to the DATA-LENS∶∶ZIPPING function, , @t{zipping}} (function)
+@item
+@ref{go to the DATA-LENS∶∶• macro, , @t{•}} (macro)
+@end itemize
+@item Internal Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS∶∶=>> function, , @t{=>>}} (function)
+@item
+@ref{go to the DATA-LENS∶∶CONS-NEW function, , @t{cons-new}} (function)
+@item
+@ref{go to the DATA-LENS∶∶DEDUPLICATE function, , @t{deduplicate}} (function)
+@item
+@ref{go to the DATA-LENS∶∶FILLER function, , @t{filler}} (function)
+@item
+@ref{go to the DATA-LENS∶∶MATCHING-LIST-REDUCER function, , @t{matching-list-reducer}} (function)
+@item
+@ref{go to the DATA-LENS∶∶UPDATE function, , @t{update}} (function)
+@item
+@ref{go to the DATA-LENS∶∶UPDATEF macro, , @t{updatef}} (macro)
+@end itemize
+@end table
+
+
+@c ---------------------------------
+@c The data-lens.transducers package
+@c ---------------------------------
+@node The data-lens․transducers package, The data-lens․package package, The data-lens package, Packages
+@section @t{data-lens.transducers}
+@anchor{go to the DATA-LENS․TRANSDUCERS package}@c
+@packageindex{data-lens.transducers}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/package․lisp file, , @t{package.lisp}} (file)
+@item Use List
+@t{common-lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶CATTING function, , @t{catting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function, , @t{collecting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function, , @t{compressing-runs}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function, , @t{deduping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function, , @t{dropping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function, , @t{filtering}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function, , @t{hash-table-select}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶IOTA function, , @t{iota}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function, , @t{lazy-sequence}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class, , @t{lazy-sequence}} (class)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function, , @t{mapcatting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function, , @t{mapping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function, , @t{mv-filtering}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function, , @t{mv-mapping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function, , @t{mv-selecting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro, , @t{repeating}} (macro)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function, , @t{repeating*}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING function, , @t{splitting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶TAKING function, , @t{taking}} (function)
+@end itemize
+@item Internal Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro, , @t{comment}} (macro)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function, , @t{eduction}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function, , @t{next}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method, , @t{next}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶SEQ function, , @t{seq}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro, , @t{transducer-lambda}} (macro)
+@end itemize
+@end table
+
+
+@c -----------------------------
+@c The data-lens.package package
+@c -----------------------------
+@node The data-lens․package package, The data-lens․lenses package, The data-lens․transducers package, Packages
+@section @t{data-lens.package}
+@anchor{go to the DATA-LENS․PACKAGE package}@c
+@packageindex{data-lens.package}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/package․lisp file, , @t{package.lisp}} (file)
+@item Use List
+@t{common-lisp}
+@end table
+
+
+@c ----------------------------
+@c The data-lens.lenses package
+@c ----------------------------
+@node The data-lens․lenses package, The data-lens․transducers․internals package, The data-lens․package package, Packages
+@section @t{data-lens.lenses}
+@anchor{go to the DATA-LENS․LENSES package}@c
+@packageindex{data-lens.lenses}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/package․lisp file, , @t{package.lisp}} (file)
+@item Use List
+@t{common-lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function, , @t{make-alist-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function, , @t{make-hash-table-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-LIST-LENS function, , @t{make-list-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function, , @t{make-plist-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶OVER function, , @t{over}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶SET function, , @t{set}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶VIEW function, , @t{view}} (function)
+@end itemize
+@item Internal Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․LENSES∶∶CLONE generic function, , @t{clone}} (generic function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T AROUND method, , @t{clone}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶CONSTANT- class, , @t{constant-}} (class)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP generic function, , @t{fmap}} (generic function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method, , @t{fmap}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method, , @t{fmap}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶LIST method, , @t{fmap}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶VECTOR method, , @t{fmap}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶IDENTITY- class, , @t{identity-}} (class)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function, , @t{make-alist-history-lens}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶UNCONSTANT generic function, , @t{unconstant}} (generic function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶UNCONSTANT DATA-LENS․LENSES∶∶CONSTANT- method, , @t{unconstant}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶UNIDENTITY generic function, , @t{unidentity}} (generic function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶UNIDENTITY DATA-LENS․LENSES∶∶IDENTITY- method, , @t{unidentity}} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT function, , @t{wrap-constant}} (function)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY function, , @t{wrap-identity}} (function)
+@end itemize
+@end table
+
+
+@c -------------------------------------------
+@c The data-lens.transducers.internals package
+@c -------------------------------------------
+@node The data-lens․transducers․internals package, , The data-lens․lenses package, Packages
+@section @t{data-lens.transducers.internals}
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS package}@c
+@packageindex{data-lens.transducers.internals}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/package․lisp file, , @t{package.lisp}} (file)
+@item Use List
+@t{common-lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function, , @t{exit-early}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT generic function, , @t{init}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function, , @t{reduce-generic}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function, , @t{stepper}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function, , @t{transduce}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function, , @t{unwrap}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method, , @t{unwrap}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method, , @t{unwrap}} (method)
+@end itemize
+@item Internal Definitions
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro, , @t{defdocumentation}} (macro)
+@end table
+
+
+
+@c ====================================================================
+@c Definitions
+@c ====================================================================
+@node Definitions, Indexes, Packages, Top
+@chapter Definitions
+Definitions are sorted by export status, category, package, and then by
+lexicographic order.
+
+@menu
+* Exported definitions::
+* Internal definitions::
+@end menu
+
+
+@c --------------------
+@c Exported definitions
+@c --------------------
+@node Exported definitions, Internal definitions, Definitions, Definitions
+@section Exported definitions
+@menu
+* Exported macros::
+* Exported functions::
+* Exported generic functions::
+* Exported classes::
+@end menu
+
+@node Exported macros, Exported functions, Exported definitions, Exported definitions
+@subsection Macros
+@deffn {Macro} {<>1} &rest FUNS
+@anchor{go to the DATA-LENS∶∶<>1 macro}@c
+@macrosubindex{<>1}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {applying} FUN &rest ARGS
+@anchor{go to the DATA-LENS∶∶APPLYING macro}@c
+@macrosubindex{applying}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {defun-ct} NAME (&rest ARGS) &body BODY
+@anchor{go to the DATA-LENS∶∶DEFUN-CT macro}@c
+@macrosubindex{defun-ct}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {let-fn} (&rest BINDINGS) &body BODY
+@anchor{go to the DATA-LENS∶∶LET-FN macro}@c
+@macrosubindex{let-fn}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {repeating} V
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro}@c
+@macrosubindex{repeating}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/lazy-sequence․lisp file, , @t{lazy-sequence.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {shortcut} NAME FUNCTION &body BOUND-ARGS
+@anchor{go to the DATA-LENS∶∶SHORTCUT macro}@c
+@macrosubindex{shortcut}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {•} &rest FUNS
+@anchor{go to the DATA-LENS∶∶• macro}@c
+@macrosubindex{•}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+
+@node Exported functions, Exported generic functions, Exported macros, Exported definitions
+@subsection Functions
+@deffn {Function} {==} TARGET &key TEST
+@anchor{go to the DATA-LENS∶∶== function}@c
+@functionsubindex{==}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {applicable-when} FUN TEST
+@anchor{go to the DATA-LENS∶∶APPLICABLE-WHEN function}@c
+@functionsubindex{applicable-when}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {catting} ()
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶CATTING function}@c
+@functionsubindex{catting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {collecting} COLLECTOR
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function}@c
+@functionsubindex{collecting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {combine-matching-lists} &key TEST &allow-other-keys
+@anchor{go to the DATA-LENS∶∶COMBINE-MATCHING-LISTS function}@c
+@functionsubindex{combine-matching-lists}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {compress-runs} &key COLLECTOR TEST KEY
+@anchor{go to the DATA-LENS∶∶COMPRESS-RUNS function}@c
+@functionsubindex{compress-runs}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {compressing-runs} &key TEST COMBINER
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function}@c
+@functionsubindex{compressing-runs}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {cumsum} &key ADD-FUN KEY COMBINE ZERO
+@anchor{go to the DATA-LENS∶∶CUMSUM function}@c
+@functionsubindex{cumsum}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {deduping} &optional TEST
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function}@c
+@functionsubindex{deduping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {denest} &key RESULT-TYPE
+@anchor{go to the DATA-LENS∶∶DENEST function}@c
+@functionsubindex{denest}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {derive} DIFF-FUN &key KEY
+@anchor{go to the DATA-LENS∶∶DERIVE function}@c
+@functionsubindex{derive}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {dropping} N
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function}@c
+@functionsubindex{dropping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {element} NUM
+@anchor{go to the DATA-LENS∶∶ELEMENT function}@c
+@functionsubindex{element}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {exclude} PRED
+@anchor{go to the DATA-LENS∶∶EXCLUDE function}@c
+@functionsubindex{exclude}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {exit-early} ACC
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function}@c
+@functionsubindex{exit-early}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {filtering} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function}@c
+@functionsubindex{filtering}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {hash-table-select} HASH-TABLE
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function}@c
+@functionsubindex{hash-table-select}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {include} PRED
+@anchor{go to the DATA-LENS∶∶INCLUDE function}@c
+@functionsubindex{include}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {iota} &key START STEP COUNT
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶IOTA function}@c
+@functionsubindex{iota}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/lazy-sequence․lisp file, , @t{lazy-sequence.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {juxt} FUN1 &rest R
+@anchor{go to the DATA-LENS∶∶JUXT function}@c
+@functionsubindex{juxt}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {key} KEY
+@anchor{go to the DATA-LENS∶∶KEY function}@c
+@functionsubindex{key}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {key-transform} FUN KEY-GET KEY-SET
+@anchor{go to the DATA-LENS∶∶KEY-TRANSFORM function}@c
+@functionsubindex{key-transform}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {lazy-sequence} NEXT
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function}@c
+@functionsubindex{lazy-sequence}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/lazy-sequence․lisp file, , @t{lazy-sequence.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {make-alist-lens} KEY
+@anchor{go to the DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function}@c
+@functionsubindex{make-alist-lens}@c
+A lens for updating a alist@comma{} discarding previous values
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {make-hash-table-lens} KEY
+@anchor{go to the DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function}@c
+@functionsubindex{make-hash-table-lens}@c
+A lens for updating a hash-table@comma{} discarding previous values
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {make-list-lens} INDEX
+@anchor{go to the DATA-LENS․LENSES∶∶MAKE-LIST-LENS function}@c
+@functionsubindex{make-list-lens}@c
+A lens for updating a sequence
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {make-plist-lens} KEY
+@anchor{go to the DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function}@c
+@functionsubindex{make-plist-lens}@c
+A lens for updating a plist@comma{} preserving previous values
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {mapcatting} FUN
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function}@c
+@functionsubindex{mapcatting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {mapping} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function}@c
+@functionsubindex{mapping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {maximizing} RELATION MEASURE
+@anchor{go to the DATA-LENS∶∶MAXIMIZING function}@c
+@functionsubindex{maximizing}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {mv-filtering} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function}@c
+@functionsubindex{mv-filtering}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {mv-mapping} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function}@c
+@functionsubindex{mv-mapping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {mv-selecting} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function}@c
+@functionsubindex{mv-selecting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {of-length} LEN
+@anchor{go to the DATA-LENS∶∶OF-LENGTH function}@c
+@functionsubindex{of-length}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {of-max-length} LEN
+@anchor{go to the DATA-LENS∶∶OF-MAX-LENGTH function}@c
+@functionsubindex{of-max-length}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {of-min-length} LEN
+@anchor{go to the DATA-LENS∶∶OF-MIN-LENGTH function}@c
+@functionsubindex{of-min-length}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {on} FUN KEY
+@anchor{go to the DATA-LENS∶∶ON function}@c
+@functionsubindex{on}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {over} FUN &key RESULT-TYPE
+@anchor{go to the DATA-LENS∶∶OVER function}@c
+@functionsubindex{over}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {over} LENS CB REC
+@anchor{go to the DATA-LENS․LENSES∶∶OVER function}@c
+@functionsubindex{over}@c
+Given a lens@comma{} a callback and a record@comma{} apply the lens to the
+record@comma{} transform it by the callback and return copy of the record@comma{}
+updated to contain the result of the callback. This is the fundamental
+operation on a lens and SET and VIEW are implemented in terms of it.
+
+A lens is any function of the form (lambda (fun) (lambda (rec) ...))
+that obeys the lens laws (where == is some reasonable equality
+operator):@*
+
+    (== (view lens (set lens value rec))@*
+        value)@*
+
+    (== (set lens (view lens rec) rec)@*
+        rec)@*
+
+    (== (set lens value2 (set lens value1 rec))@*
+        (set lens value2 rec))@*
+
+The inner lambda returns a functor that determines the policy to be
+applied to the focused part.  By default@comma{} this only uses IDENTITY- and
+CONSTANT- in order to implement the lens operations over@comma{} set and
+view.@*
+
+If these conditions are met@comma{} (over (data-lens:<>1 lens1 lens2) ...) is
+equivalent to using lens2 to focus the part lens1 focuses: note that
+composition is "backwards" from what one might expect: this is
+because composition composes the wrapper lambdas and applies the
+lambda that actually pulls a value out of a record later.
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {pick} SELECTOR
+@anchor{go to the DATA-LENS∶∶PICK function}@c
+@functionsubindex{pick}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {regex-match} REGEX
+@anchor{go to the DATA-LENS∶∶REGEX-MATCH function}@c
+@functionsubindex{regex-match}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {repeating*} V &key COUNT
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function}@c
+@functionsubindex{repeating*}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/lazy-sequence․lisp file, , @t{lazy-sequence.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {set} LENS V REC
+@anchor{go to the DATA-LENS․LENSES∶∶SET function}@c
+@functionsubindex{set}@c
+Given a lens@comma{} a value and a rec@comma{} immutably update the rec to
+contain the new value at the location focused by the lens.
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {slice} START &optional END
+@anchor{go to the DATA-LENS∶∶SLICE function}@c
+@functionsubindex{slice}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {sorted} COMPARATOR &rest R &key KEY
+@anchor{go to the DATA-LENS∶∶SORTED function}@c
+@functionsubindex{sorted}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {splice-elt} ELT FUN
+@anchor{go to the DATA-LENS∶∶SPLICE-ELT function}@c
+@functionsubindex{splice-elt}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {splitting} &rest FUNCTIONS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING function}@c
+@functionsubindex{splitting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {suffixp} SUFFIX &key TEST
+@anchor{go to the DATA-LENS∶∶SUFFIXP function}@c
+@functionsubindex{suffixp}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {taking} N
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶TAKING function}@c
+@functionsubindex{taking}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {transduce} XF BUILD SEQ
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function}@c
+@functionsubindex{transduce}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {transform-elt} ELT FUN
+@anchor{go to the DATA-LENS∶∶TRANSFORM-ELT function}@c
+@functionsubindex{transform-elt}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {transform-head} FUN
+@anchor{go to the DATA-LENS∶∶TRANSFORM-HEAD function}@c
+@functionsubindex{transform-head}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {transform-tail} FUN
+@anchor{go to the DATA-LENS∶∶TRANSFORM-TAIL function}@c
+@functionsubindex{transform-tail}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {view} LENS REC
+@anchor{go to the DATA-LENS․LENSES∶∶VIEW function}@c
+@functionsubindex{view}@c
+Given a lens and a rec@comma{} return the focused value
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {zipping} RESULT-TYPE &key FILL-VALUE
+@anchor{go to the DATA-LENS∶∶ZIPPING function}@c
+@functionsubindex{zipping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+
+@node Exported generic functions, Exported classes, Exported functions, Exported definitions
+@subsection Generic functions
+@deffn {Generic Function} {extract-key} MAP KEY
+@anchor{go to the DATA-LENS∶∶EXTRACT-KEY generic function}@c
+@genericsubindex{extract-key}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@item Methods
+@deffn {Method} {extract-key} (MAP @t{hash-table}) KEY
+@anchor{go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method}@c
+@methodsubindex{extract-key}@c
+@end deffn
+@deffn {Method} {extract-key} (MAP @t{list}) KEY
+@anchor{go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶LIST COMMON-LISP∶∶T method}@c
+@methodsubindex{extract-key}@c
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {functionalize} IT
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE generic function}@c
+@genericsubindex{functionalize}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@item Methods
+@deffn {Method} {functionalize} (IT @t{hash-table})
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method}@c
+@methodsubindex{functionalize}@c
+@end deffn
+@deffn {Method} {functionalize} (IT @t{vector})
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method}@c
+@methodsubindex{functionalize}@c
+@end deffn
+@deffn {Method} {functionalize} (IT @t{symbol})
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method}@c
+@methodsubindex{functionalize}@c
+@end deffn
+@deffn {Method} {functionalize} (IT @t{function})
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method}@c
+@methodsubindex{functionalize}@c
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {init} CLIENT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT generic function}@c
+@genericsubindex{init}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@item Methods
+@deffn {Method} {init} (IT @t{(eql list-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method}@c
+@methodsubindex{init}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Method} {init} (IT @t{(eql vector-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method}@c
+@methodsubindex{init}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Method} {init} (IT @t{(eql hash-table-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method}@c
+@methodsubindex{init}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {reduce-generic} SEQ FUNC INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function}@c
+@genericsubindex{reduce-generic}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@item Methods
+@deffn {Method} {reduce-generic} (SEQ @t{lazy-sequence}) (FUNC @t{function}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/lazy-sequence․lisp file, , @t{lazy-sequence.lisp}} (file)
+@end table
+@end deffn
+@deffn {Method} {reduce-generic} (SEQ @t{sequence}) (FUNC @t{function}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@end deffn
+@deffn {Method} {reduce-generic} (SEQ @t{sequence}) (FUNC @t{symbol}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@end deffn
+@deffn {Method} {reduce-generic} SEQ (FUNC @t{symbol}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@end deffn
+@deffn {Method} {reduce-generic} (SEQ @t{hash-table}) (FUNC @t{function}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {stepper} CLIENT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function}@c
+@genericsubindex{stepper}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@item Methods
+@deffn {Method} {stepper} (IT @t{(eql list-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method}@c
+@methodsubindex{stepper}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Method} {stepper} (IT @t{(eql vector-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method}@c
+@methodsubindex{stepper}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Method} {stepper} (IT @t{(eql hash-table-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method}@c
+@methodsubindex{stepper}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {unwrap} CLIENT OBJ
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function}@c
+@genericsubindex{unwrap}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@item Methods
+@deffn {Method} {unwrap} (IT @t{(eql list-builder)}) OBJ
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method}@c
+@methodsubindex{unwrap}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Method} {unwrap} CLIENT OBJ
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method}@c
+@methodsubindex{unwrap}@c
+@end deffn
+@end table
+@end deffn
+
+@node Exported classes, , Exported generic functions, Exported definitions
+@subsection Classes
+@deftp {Class} {lazy-sequence} ()
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class}@c
+@classsubindex{lazy-sequence}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/lazy-sequence․lisp file, , @t{lazy-sequence.lisp}} (file)
+@item Direct superclasses
+@t{standard-object} (class)
+@item Direct methods
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method, , @t{next}} (method)
+@end itemize
+@item Direct slots
+@defvr {Slot} %next
+@slotsubindex{%next}@c
+@table @strong
+@item Initargs
+@t{:next}
+@item Readers
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function, , @t{next}} (generic function)
+@end table
+@end defvr
+@end table
+@end deftp
+
+
+@c --------------------
+@c Internal definitions
+@c --------------------
+@node Internal definitions, , Exported definitions, Definitions
+@section Internal definitions
+@menu
+* Internal macros::
+* Internal functions::
+* Internal generic functions::
+* Internal classes::
+@end menu
+
+@node Internal macros, Internal functions, Internal definitions, Internal definitions
+@subsection Macros
+@deffn {Macro} {comment} &body BODY
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro}@c
+@macrosubindex{comment}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {defdocumentation} NAME &body DOC-SPECS
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro}@c
+@macrosubindex{defdocumentation}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducer-protocol․lisp file, , @t{transducer-protocol.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {transducer-lambda} &body ((TWO-ARG-ACC TWO-ARG-NEXT) &body TWO-ARG-BODY)
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro}@c
+@macrosubindex{transducer-lambda}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Macro} {updatef} PLACE FUN &rest ARGS
+@anchor{go to the DATA-LENS∶∶UPDATEF macro}@c
+@macrosubindex{updatef}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+
+@node Internal functions, Internal generic functions, Internal macros, Internal definitions
+@subsection Functions
+@deffn {Function} {=>>} FUN1 FUN2
+@anchor{go to the DATA-LENS∶∶=>> function}@c
+@functionsubindex{=>>}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {cons-new} &key TEST KEY
+@anchor{go to the DATA-LENS∶∶CONS-NEW function}@c
+@functionsubindex{cons-new}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {deduplicate} &optional TEST
+@anchor{go to the DATA-LENS∶∶DEDUPLICATE function}@c
+@functionsubindex{deduplicate}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {eduction} XF SEQ
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function}@c
+@functionsubindex{eduction}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {filler} LENGTH1 LENGTH2 FILL-VALUE
+@anchor{go to the DATA-LENS∶∶FILLER function}@c
+@functionsubindex{filler}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {make-alist-history-lens} KEY
+@anchor{go to the DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function}@c
+@functionsubindex{make-alist-history-lens}@c
+A lens for updating a alist@comma{} preserving previous values
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {matching-list-reducer} TEST ACC NEXT
+@anchor{go to the DATA-LENS∶∶MATCHING-LIST-REDUCER function}@c
+@functionsubindex{matching-list-reducer}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {seq} A B
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶SEQ function}@c
+@functionsubindex{seq}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@ref{go to the data-lens/beta/transducers/transducers․lisp file, , @t{transducers.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {update} THING FUN &rest ARGS
+@anchor{go to the DATA-LENS∶∶UPDATE function}@c
+@functionsubindex{update}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {wrap-constant} V
+@anchor{go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT function}@c
+@functionsubindex{wrap-constant}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {wrap-identity} V
+@anchor{go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY function}@c
+@functionsubindex{wrap-identity}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+
+@node Internal generic functions, Internal classes, Internal functions, Internal definitions
+@subsection Generic functions
+@deffn {Generic Function} {clone} OBJ &rest NEW-INITARGS &key
+@anchor{go to the DATA-LENS․LENSES∶∶CLONE generic function}@c
+@genericsubindex{clone}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@item Methods
+@deffn {Method} {clone} OBJ &rest NEW-INITARGS &key @t{around}
+@anchor{go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T AROUND method}@c
+@methodsubindex{clone}@c
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {fmap} FUNCTION DATA
+@anchor{go to the DATA-LENS․LENSES∶∶FMAP generic function}@c
+@genericsubindex{fmap}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@item Methods
+@deffn {Method} {fmap} FUNCTION (DATA @t{identity-})
+@anchor{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method}@c
+@methodsubindex{fmap}@c
+@end deffn
+@deffn {Method} {fmap} FUNCTION (DATA @t{constant-})
+@anchor{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method}@c
+@methodsubindex{fmap}@c
+@end deffn
+@deffn {Method} {fmap} FUNCTION (DATA @t{list})
+@anchor{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶LIST method}@c
+@methodsubindex{fmap}@c
+@end deffn
+@deffn {Method} {fmap} FUNCTION (DATA @t{vector})
+@anchor{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶VECTOR method}@c
+@methodsubindex{fmap}@c
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {next} OBJECT
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function}@c
+@genericsubindex{next}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Methods
+@deffn {Method} {next} (LAZY-SEQUENCE @t{lazy-sequence})
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method}@c
+@methodsubindex{next}@c
+automatically generated reader method
+@table @strong
+@item Source
+@ref{go to the data-lens/beta/transducers/lazy-sequence․lisp file, , @t{lazy-sequence.lisp}} (file)
+@end table
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {unconstant} OBJECT
+@anchor{go to the DATA-LENS․LENSES∶∶UNCONSTANT generic function}@c
+@genericsubindex{unconstant}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Methods
+@deffn {Method} {unconstant} (CONSTANT- @t{constant-})
+@anchor{go to the DATA-LENS․LENSES∶∶UNCONSTANT DATA-LENS․LENSES∶∶CONSTANT- method}@c
+@methodsubindex{unconstant}@c
+automatically generated reader method
+@table @strong
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {unidentity} OBJECT
+@anchor{go to the DATA-LENS․LENSES∶∶UNIDENTITY generic function}@c
+@genericsubindex{unidentity}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Methods
+@deffn {Method} {unidentity} (IDENTITY- @t{identity-})
+@anchor{go to the DATA-LENS․LENSES∶∶UNIDENTITY DATA-LENS․LENSES∶∶IDENTITY- method}@c
+@methodsubindex{unidentity}@c
+automatically generated reader method
+@table @strong
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@end table
+@end deffn
+@end table
+@end deffn
+
+@node Internal classes, , Internal generic functions, Internal definitions
+@subsection Classes
+@deftp {Class} {constant-} ()
+@anchor{go to the DATA-LENS․LENSES∶∶CONSTANT- class}@c
+@classsubindex{constant-}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@item Direct superclasses
+@t{standard-object} (class)
+@item Direct methods
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method, , @t{fmap}} (method)
+@item
+@t{print-object} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶UNCONSTANT DATA-LENS․LENSES∶∶CONSTANT- method, , @t{unconstant}} (method)
+@end itemize
+@item Direct slots
+@defvr {Slot} %v
+@slotsubindex{%v}@c
+@table @strong
+@item Initargs
+@t{:value}
+@item Readers
+@ref{go to the DATA-LENS․LENSES∶∶UNCONSTANT generic function, , @t{unconstant}} (generic function)
+@end table
+@end defvr
+@end table
+@end deftp
+@deftp {Class} {identity-} ()
+@anchor{go to the DATA-LENS․LENSES∶∶IDENTITY- class}@c
+@classsubindex{identity-}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item Source
+@ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
+@item Direct superclasses
+@t{standard-object} (class)
+@item Direct methods
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method, , @t{fmap}} (method)
+@item
+@t{print-object} (method)
+@item
+@ref{go to the DATA-LENS․LENSES∶∶UNIDENTITY DATA-LENS․LENSES∶∶IDENTITY- method, , @t{unidentity}} (method)
+@end itemize
+@item Direct slots
+@defvr {Slot} %v
+@slotsubindex{%v}@c
+@table @strong
+@item Initargs
+@t{:value}
+@item Readers
+@ref{go to the DATA-LENS․LENSES∶∶UNIDENTITY generic function, , @t{unidentity}} (generic function)
+@end table
+@end defvr
+@end table
+@end deftp
+
+
+
+@c ====================================================================
+@c Indexes
+@c ====================================================================
+@node Indexes, , Definitions, Top
+@appendix Indexes
+@menu
+* Concept index::
+* Function index::
+* Variable index::
+* Data type index::
+@end menu
+
+
+@c -------------
+@c Concept index
+@c -------------
+@node Concept index, Function index, Indexes, Indexes
+@appendixsec Concepts
+@printindex cp
+
+@page
+
+
+@c --------------
+@c Function index
+@c --------------
+@node Function index, Variable index, Concept index, Indexes
+@appendixsec Functions
+@printindex fn
+
+@page
+
+
+@c --------------
+@c Variable index
+@c --------------
+@node Variable index, Data type index, Function index, Indexes
+@appendixsec Variables
+@printindex vr
+
+@page
+
+
+@c ---------------
+@c Data type index
+@c ---------------
+@node Data type index, , Variable index, Indexes
+@appendixsec Data types
+@printindex tp
+
+@bye
+
+@c data-lens-transducers.texi ends here
diff --git a/docs/data-lens-transducers.texi.info b/docs/data-lens-transducers.texi.info
new file mode 100644
index 0000000..a1924c3
--- /dev/null
+++ b/docs/data-lens-transducers.texi.info
@@ -0,0 +1,2230 @@
+This is data-lens-transducers.texi.info, produced by makeinfo version
+6.7 from data-lens-transducers.texi.
+
+INFO-DIR-SECTION Common Lisp
+START-INFO-DIR-ENTRY
+* data-lens/beta/transducers Reference: (data-lens-transducers.texi). The data-lens/beta/transducers Reference Manual.
+END-INFO-DIR-ENTRY
+
+
+File: data-lens-transducers.texi.info,  Node: Top,  Next: Systems,  Prev: (dir),  Up: (dir)
+
+The data-lens/beta/transducers Reference Manual
+***********************************************
+
+This is the data-lens/beta/transducers Reference Manual, generated
+automatically by Declt version 3.0 "Montgomery Scott" on Wed Jan 06
+14:22:25 2021 GMT-8.
+
+* Menu:
+
+* Systems:: The systems documentation
+* Files:: The files documentation
+* Packages:: The packages documentation
+* Definitions:: The symbols documentation
+* Indexes:: Concepts, functions, variables and data types
+
+
+File: data-lens-transducers.texi.info,  Node: Systems,  Next: Files,  Prev: Top,  Up: Top
+
+1 Systems
+*********
+
+The main system appears first, followed by any subsystem dependency.
+
+* Menu:
+
+* The data-lens/beta/transducers system::
+* The data-lens system::
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens/beta/transducers system,  Next: The data-lens system,  Prev: Systems,  Up: Systems
+
+1.1 data-lens/beta/transducers
+==============================
+
+*Author*
+     Edward Langley <<el-cl@elangley.org>>
+*License*
+     MIT
+*Description*
+     A collection of transducers to reduce stream-manipulation overhead
+*Dependencies*
+        • *note data-lens: go to the data-lens system. (system)
+        • alexandria
+*Source*
+     *note data-lens.asd: go to the data-lens․asd file. (file)
+*Components*
+        • *note package.lisp: go to the
+          data-lens/beta/transducers/package․lisp file. (file)
+        • *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+        • *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+        • *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens system,  Prev: The data-lens/beta/transducers system,  Up: Systems
+
+1.2 data-lens
+=============
+
+*Author*
+     Edward Langley <<el-cl@elangley.org>>
+*License*
+     MIT
+*Description*
+     Utilities for building data transformations from composable
+     functions, modeled on lenses and transducers
+*Dependencies*
+        • cl-ppcre
+        • alexandria
+        • serapeum
+*Source*
+     *note data-lens.asd: go to the data-lens․asd file. (file)
+*Components*
+        • *note package.lisp: go to the data-lens/package․lisp file.
+          (file)
+        • *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+        • *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens-transducers.texi.info,  Node: Files,  Next: Packages,  Prev: Systems,  Up: Top
+
+2 Files
+*******
+
+Files are sorted by type and then listed depth-first from the systems
+components trees.
+
+* Menu:
+
+* Lisp files::
+
+
+File: data-lens-transducers.texi.info,  Node: Lisp files,  Prev: Files,  Up: Files
+
+2.1 Lisp
+========
+
+* Menu:
+
+* The data-lens.asd file: The data-lens․asd file.
+* The data-lens/beta/transducers/package.lisp file: The data-lens/beta/transducers/package․lisp file.
+* The data-lens/beta/transducers/transducer-protocol.lisp file: The data-lens/beta/transducers/transducer-protocol․lisp file.
+* The data-lens/beta/transducers/transducers.lisp file: The data-lens/beta/transducers/transducers․lisp file.
+* The data-lens/beta/transducers/lazy-sequence.lisp file: The data-lens/beta/transducers/lazy-sequence․lisp file.
+* The data-lens/package.lisp file: The data-lens/package․lisp file.
+* The data-lens/optics.lisp file: The data-lens/optics․lisp file.
+* The data-lens/lens.lisp file: The data-lens/lens․lisp file.
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens․asd file,  Next: The data-lens/beta/transducers/package․lisp file,  Prev: Lisp files,  Up: Lisp files
+
+2.1.1 data-lens.asd
+-------------------
+
+*Location*
+     data-lens.asd
+*Systems*
+        • *note data-lens/beta/transducers: go to the
+          data-lens/beta/transducers system. (system)
+        • *note data-lens: go to the data-lens system. (system)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens/beta/transducers/package․lisp file,  Next: The data-lens/beta/transducers/transducer-protocol․lisp file,  Prev: The data-lens․asd file,  Up: Lisp files
+
+2.1.2 data-lens/beta/transducers/package.lisp
+---------------------------------------------
+
+*Parent*
+     *note data-lens/beta/transducers: go to the
+     data-lens/beta/transducers system. (system)
+*Location*
+     package.lisp
+*Packages*
+        • *note data-lens: go to the DATA-LENS package.
+        • *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+        • *note data-lens.package: go to the DATA-LENS․PACKAGE package.
+        • *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+        • *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens/beta/transducers/transducer-protocol․lisp file,  Next: The data-lens/beta/transducers/transducers․lisp file,  Prev: The data-lens/beta/transducers/package․lisp file,  Up: Lisp files
+
+2.1.3 data-lens/beta/transducers/transducer-protocol.lisp
+---------------------------------------------------------
+
+*Dependency*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Parent*
+     *note data-lens/beta/transducers: go to the
+     data-lens/beta/transducers system. (system)
+*Location*
+     transducer-protocol.lisp
+*Exported Definitions*
+        • *note exit-early: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function.
+          (function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          generic function. (generic function)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic
+          function. (generic function)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T
+          COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function.
+          (generic function)
+        • *note transduce: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function.
+          (function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function.
+          (generic function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶T method. (method)
+*Internal Definitions*
+     *note defdocumentation: go to the
+     DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro. (macro)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens/beta/transducers/transducers․lisp file,  Next: The data-lens/beta/transducers/lazy-sequence․lisp file,  Prev: The data-lens/beta/transducers/transducer-protocol․lisp file,  Up: Lisp files
+
+2.1.4 data-lens/beta/transducers/transducers.lisp
+-------------------------------------------------
+
+*Dependency*
+     *note transducer-protocol.lisp: go to the
+     data-lens/beta/transducers/transducer-protocol․lisp file. (file)
+*Parent*
+     *note data-lens/beta/transducers: go to the
+     data-lens/beta/transducers system. (system)
+*Location*
+     transducers.lisp
+*Exported Definitions*
+        • *note catting: go to the DATA-LENS․TRANSDUCERS∶∶CATTING
+          function. (function)
+        • *note collecting: go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING
+          function. (function)
+        • *note compressing-runs: go to the
+          DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function. (function)
+        • *note deduping: go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING
+          function. (function)
+        • *note dropping: go to the DATA-LENS․TRANSDUCERS∶∶DROPPING
+          function. (function)
+        • *note filtering: go to the DATA-LENS․TRANSDUCERS∶∶FILTERING
+          function. (function)
+        • *note hash-table-select: go to the
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function. (function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method.
+          (method)
+        • *note mapcatting: go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING
+          function. (function)
+        • *note mapping: go to the DATA-LENS․TRANSDUCERS∶∶MAPPING
+          function. (function)
+        • *note mv-filtering: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function. (function)
+        • *note mv-mapping: go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING
+          function. (function)
+        • *note mv-selecting: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function. (function)
+        • *note splitting: go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING
+          function. (function)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method. (method)
+        • *note taking: go to the DATA-LENS․TRANSDUCERS∶∶TAKING
+          function. (function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method.
+          (method)
+*Internal Definitions*
+        • *note comment: go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro.
+          (macro)
+        • *note eduction: go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION
+          function. (function)
+        • *note seq: go to the DATA-LENS․TRANSDUCERS∶∶SEQ function.
+          (function)
+        • *note transducer-lambda: go to the
+          DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro. (macro)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens/beta/transducers/lazy-sequence․lisp file,  Next: The data-lens/package․lisp file,  Prev: The data-lens/beta/transducers/transducers․lisp file,  Up: Lisp files
+
+2.1.5 data-lens/beta/transducers/lazy-sequence.lisp
+---------------------------------------------------
+
+*Dependency*
+     *note transducers.lisp: go to the
+     data-lens/beta/transducers/transducers․lisp file. (file)
+*Parent*
+     *note data-lens/beta/transducers: go to the
+     data-lens/beta/transducers system. (system)
+*Location*
+     lazy-sequence.lisp
+*Exported Definitions*
+        • *note iota: go to the DATA-LENS․TRANSDUCERS∶∶IOTA function.
+          (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function. (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class. (class)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION
+          COMMON-LISP∶∶T method. (method)
+        • *note repeating: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING
+          macro. (macro)
+        • *note repeating*: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING*
+          function. (function)
+*Internal Definitions*
+     *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+     DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method. (method)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens/package․lisp file,  Next: The data-lens/optics․lisp file,  Prev: The data-lens/beta/transducers/lazy-sequence․lisp file,  Up: Lisp files
+
+2.1.6 data-lens/package.lisp
+----------------------------
+
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     package.lisp
+*Packages*
+        • *note data-lens: go to the DATA-LENS package.
+        • *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+        • *note data-lens.package: go to the DATA-LENS․PACKAGE package.
+        • *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+        • *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens/optics․lisp file,  Next: The data-lens/lens․lisp file,  Prev: The data-lens/package․lisp file,  Up: Lisp files
+
+2.1.7 data-lens/optics.lisp
+---------------------------
+
+*Dependency*
+     *note package.lisp: go to the data-lens/package․lisp file. (file)
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     optics.lisp
+*Exported Definitions*
+        • *note make-alist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function. (function)
+        • *note make-hash-table-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function. (function)
+        • *note make-list-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-LIST-LENS function. (function)
+        • *note make-plist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function. (function)
+        • *note over: go to the DATA-LENS․LENSES∶∶OVER function.
+          (function)
+        • *note set: go to the DATA-LENS․LENSES∶∶SET function.
+          (function)
+        • *note view: go to the DATA-LENS․LENSES∶∶VIEW function.
+          (function)
+*Internal Definitions*
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE generic
+          function. (generic function)
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T
+          AROUND method. (method)
+        • *note constant-: go to the DATA-LENS․LENSES∶∶CONSTANT- class.
+          (class)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP generic function.
+          (generic function)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶LIST method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note identity-: go to the DATA-LENS․LENSES∶∶IDENTITY- class.
+          (class)
+        • *note make-alist-history-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function. (function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note wrap-constant: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT
+          function. (function)
+        • *note wrap-identity: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY
+          function. (function)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens/lens․lisp file,  Prev: The data-lens/optics․lisp file,  Up: Lisp files
+
+2.1.8 data-lens/lens.lisp
+-------------------------
+
+*Dependency*
+     *note optics.lisp: go to the data-lens/optics․lisp file. (file)
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     lens.lisp
+*Exported Definitions*
+        • *note <>1: go to the DATA-LENS∶∶<>1 macro. (macro)
+        • *note ==: go to the DATA-LENS∶∶== function. (function)
+        • *note applicable-when: go to the DATA-LENS∶∶APPLICABLE-WHEN
+          function. (function)
+        • *note applying: go to the DATA-LENS∶∶APPLYING macro. (macro)
+        • *note combine-matching-lists: go to the
+          DATA-LENS∶∶COMBINE-MATCHING-LISTS function. (function)
+        • *note compress-runs: go to the DATA-LENS∶∶COMPRESS-RUNS
+          function. (function)
+        • *note cumsum: go to the DATA-LENS∶∶CUMSUM function. (function)
+        • *note defun-ct: go to the DATA-LENS∶∶DEFUN-CT macro. (macro)
+        • *note denest: go to the DATA-LENS∶∶DENEST function. (function)
+        • *note derive: go to the DATA-LENS∶∶DERIVE function. (function)
+        • *note element: go to the DATA-LENS∶∶ELEMENT function.
+          (function)
+        • *note exclude: go to the DATA-LENS∶∶EXCLUDE function.
+          (function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY generic
+          function. (generic function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method. (method)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶LIST COMMON-LISP∶∶T method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          generic function. (generic function)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶HASH-TABLE method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶SYMBOL method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶FUNCTION method. (method)
+        • *note include: go to the DATA-LENS∶∶INCLUDE function.
+          (function)
+        • *note juxt: go to the DATA-LENS∶∶JUXT function. (function)
+        • *note key: go to the DATA-LENS∶∶KEY function. (function)
+        • *note key-transform: go to the DATA-LENS∶∶KEY-TRANSFORM
+          function. (function)
+        • *note let-fn: go to the DATA-LENS∶∶LET-FN macro. (macro)
+        • *note maximizing: go to the DATA-LENS∶∶MAXIMIZING function.
+          (function)
+        • *note of-length: go to the DATA-LENS∶∶OF-LENGTH function.
+          (function)
+        • *note of-max-length: go to the DATA-LENS∶∶OF-MAX-LENGTH
+          function. (function)
+        • *note of-min-length: go to the DATA-LENS∶∶OF-MIN-LENGTH
+          function. (function)
+        • *note on: go to the DATA-LENS∶∶ON function. (function)
+        • *note over: go to the DATA-LENS∶∶OVER function. (function)
+        • *note pick: go to the DATA-LENS∶∶PICK function. (function)
+        • *note regex-match: go to the DATA-LENS∶∶REGEX-MATCH function.
+          (function)
+        • *note shortcut: go to the DATA-LENS∶∶SHORTCUT macro. (macro)
+        • *note slice: go to the DATA-LENS∶∶SLICE function. (function)
+        • *note sorted: go to the DATA-LENS∶∶SORTED function. (function)
+        • *note splice-elt: go to the DATA-LENS∶∶SPLICE-ELT function.
+          (function)
+        • *note suffixp: go to the DATA-LENS∶∶SUFFIXP function.
+          (function)
+        • *note transform-elt: go to the DATA-LENS∶∶TRANSFORM-ELT
+          function. (function)
+        • *note transform-head: go to the DATA-LENS∶∶TRANSFORM-HEAD
+          function. (function)
+        • *note transform-tail: go to the DATA-LENS∶∶TRANSFORM-TAIL
+          function. (function)
+        • *note zipping: go to the DATA-LENS∶∶ZIPPING function.
+          (function)
+        • *note •: go to the DATA-LENS∶∶• macro. (macro)
+*Internal Definitions*
+        • *note =>>: go to the DATA-LENS∶∶=>> function. (function)
+        • *note cons-new: go to the DATA-LENS∶∶CONS-NEW function.
+          (function)
+        • *note deduplicate: go to the DATA-LENS∶∶DEDUPLICATE function.
+          (function)
+        • *note filler: go to the DATA-LENS∶∶FILLER function. (function)
+        • *note matching-list-reducer: go to the
+          DATA-LENS∶∶MATCHING-LIST-REDUCER function. (function)
+        • *note update: go to the DATA-LENS∶∶UPDATE function. (function)
+        • *note updatef: go to the DATA-LENS∶∶UPDATEF macro. (macro)
+
+
+File: data-lens-transducers.texi.info,  Node: Packages,  Next: Definitions,  Prev: Files,  Up: Top
+
+3 Packages
+**********
+
+Packages are listed by definition order.
+
+* Menu:
+
+* The data-lens package::
+* The data-lens.transducers package: The data-lens․transducers package.
+* The data-lens.package package: The data-lens․package package.
+* The data-lens.lenses package: The data-lens․lenses package.
+* The data-lens.transducers.internals package: The data-lens․transducers․internals package.
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens package,  Next: The data-lens․transducers package,  Prev: Packages,  Up: Packages
+
+3.1 data-lens
+=============
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note <>1: go to the DATA-LENS∶∶<>1 macro. (macro)
+        • *note ==: go to the DATA-LENS∶∶== function. (function)
+        • *note applicable-when: go to the DATA-LENS∶∶APPLICABLE-WHEN
+          function. (function)
+        • *note applying: go to the DATA-LENS∶∶APPLYING macro. (macro)
+        • *note combine-matching-lists: go to the
+          DATA-LENS∶∶COMBINE-MATCHING-LISTS function. (function)
+        • *note compress-runs: go to the DATA-LENS∶∶COMPRESS-RUNS
+          function. (function)
+        • *note cumsum: go to the DATA-LENS∶∶CUMSUM function. (function)
+        • *note defun-ct: go to the DATA-LENS∶∶DEFUN-CT macro. (macro)
+        • *note denest: go to the DATA-LENS∶∶DENEST function. (function)
+        • *note derive: go to the DATA-LENS∶∶DERIVE function. (function)
+        • *note element: go to the DATA-LENS∶∶ELEMENT function.
+          (function)
+        • *note exclude: go to the DATA-LENS∶∶EXCLUDE function.
+          (function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY generic
+          function. (generic function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method. (method)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶LIST COMMON-LISP∶∶T method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          generic function. (generic function)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶HASH-TABLE method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶SYMBOL method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶FUNCTION method. (method)
+        • *note include: go to the DATA-LENS∶∶INCLUDE function.
+          (function)
+        • *note juxt: go to the DATA-LENS∶∶JUXT function. (function)
+        • *note key: go to the DATA-LENS∶∶KEY function. (function)
+        • *note key-transform: go to the DATA-LENS∶∶KEY-TRANSFORM
+          function. (function)
+        • *note let-fn: go to the DATA-LENS∶∶LET-FN macro. (macro)
+        • *note maximizing: go to the DATA-LENS∶∶MAXIMIZING function.
+          (function)
+        • *note of-length: go to the DATA-LENS∶∶OF-LENGTH function.
+          (function)
+        • *note of-max-length: go to the DATA-LENS∶∶OF-MAX-LENGTH
+          function. (function)
+        • *note of-min-length: go to the DATA-LENS∶∶OF-MIN-LENGTH
+          function. (function)
+        • *note on: go to the DATA-LENS∶∶ON function. (function)
+        • *note over: go to the DATA-LENS∶∶OVER function. (function)
+        • *note pick: go to the DATA-LENS∶∶PICK function. (function)
+        • *note regex-match: go to the DATA-LENS∶∶REGEX-MATCH function.
+          (function)
+        • *note shortcut: go to the DATA-LENS∶∶SHORTCUT macro. (macro)
+        • *note slice: go to the DATA-LENS∶∶SLICE function. (function)
+        • *note sorted: go to the DATA-LENS∶∶SORTED function. (function)
+        • *note splice-elt: go to the DATA-LENS∶∶SPLICE-ELT function.
+          (function)
+        • *note suffixp: go to the DATA-LENS∶∶SUFFIXP function.
+          (function)
+        • *note transform-elt: go to the DATA-LENS∶∶TRANSFORM-ELT
+          function. (function)
+        • *note transform-head: go to the DATA-LENS∶∶TRANSFORM-HEAD
+          function. (function)
+        • *note transform-tail: go to the DATA-LENS∶∶TRANSFORM-TAIL
+          function. (function)
+        • *note zipping: go to the DATA-LENS∶∶ZIPPING function.
+          (function)
+        • *note •: go to the DATA-LENS∶∶• macro. (macro)
+*Internal Definitions*
+        • *note =>>: go to the DATA-LENS∶∶=>> function. (function)
+        • *note cons-new: go to the DATA-LENS∶∶CONS-NEW function.
+          (function)
+        • *note deduplicate: go to the DATA-LENS∶∶DEDUPLICATE function.
+          (function)
+        • *note filler: go to the DATA-LENS∶∶FILLER function. (function)
+        • *note matching-list-reducer: go to the
+          DATA-LENS∶∶MATCHING-LIST-REDUCER function. (function)
+        • *note update: go to the DATA-LENS∶∶UPDATE function. (function)
+        • *note updatef: go to the DATA-LENS∶∶UPDATEF macro. (macro)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens․transducers package,  Next: The data-lens․package package,  Prev: The data-lens package,  Up: Packages
+
+3.2 data-lens.transducers
+=========================
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note catting: go to the DATA-LENS․TRANSDUCERS∶∶CATTING
+          function. (function)
+        • *note collecting: go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING
+          function. (function)
+        • *note compressing-runs: go to the
+          DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function. (function)
+        • *note deduping: go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING
+          function. (function)
+        • *note dropping: go to the DATA-LENS․TRANSDUCERS∶∶DROPPING
+          function. (function)
+        • *note filtering: go to the DATA-LENS․TRANSDUCERS∶∶FILTERING
+          function. (function)
+        • *note hash-table-select: go to the
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function. (function)
+        • *note iota: go to the DATA-LENS․TRANSDUCERS∶∶IOTA function.
+          (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function. (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class. (class)
+        • *note mapcatting: go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING
+          function. (function)
+        • *note mapping: go to the DATA-LENS․TRANSDUCERS∶∶MAPPING
+          function. (function)
+        • *note mv-filtering: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function. (function)
+        • *note mv-mapping: go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING
+          function. (function)
+        • *note mv-selecting: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function. (function)
+        • *note repeating: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING
+          macro. (macro)
+        • *note repeating*: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING*
+          function. (function)
+        • *note splitting: go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING
+          function. (function)
+        • *note taking: go to the DATA-LENS․TRANSDUCERS∶∶TAKING
+          function. (function)
+*Internal Definitions*
+        • *note comment: go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro.
+          (macro)
+        • *note eduction: go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION
+          function. (function)
+        • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic
+          function. (generic function)
+        • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method. (method)
+        • *note seq: go to the DATA-LENS․TRANSDUCERS∶∶SEQ function.
+          (function)
+        • *note transducer-lambda: go to the
+          DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro. (macro)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens․package package,  Next: The data-lens․lenses package,  Prev: The data-lens․transducers package,  Up: Packages
+
+3.3 data-lens.package
+=====================
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens․lenses package,  Next: The data-lens․transducers․internals package,  Prev: The data-lens․package package,  Up: Packages
+
+3.4 data-lens.lenses
+====================
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note make-alist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function. (function)
+        • *note make-hash-table-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function. (function)
+        • *note make-list-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-LIST-LENS function. (function)
+        • *note make-plist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function. (function)
+        • *note over: go to the DATA-LENS․LENSES∶∶OVER function.
+          (function)
+        • *note set: go to the DATA-LENS․LENSES∶∶SET function.
+          (function)
+        • *note view: go to the DATA-LENS․LENSES∶∶VIEW function.
+          (function)
+*Internal Definitions*
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE generic
+          function. (generic function)
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T
+          AROUND method. (method)
+        • *note constant-: go to the DATA-LENS․LENSES∶∶CONSTANT- class.
+          (class)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP generic function.
+          (generic function)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶LIST method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note identity-: go to the DATA-LENS․LENSES∶∶IDENTITY- class.
+          (class)
+        • *note make-alist-history-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function. (function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          generic function. (generic function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          generic function. (generic function)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note wrap-constant: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT
+          function. (function)
+        • *note wrap-identity: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY
+          function. (function)
+
+
+File: data-lens-transducers.texi.info,  Node: The data-lens․transducers․internals package,  Prev: The data-lens․lenses package,  Up: Packages
+
+3.5 data-lens.transducers.internals
+===================================
+
+*Source*
+     *note package.lisp: go to the
+     data-lens/beta/transducers/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note exit-early: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function.
+          (function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          generic function. (generic function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method.
+          (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic
+          function. (generic function)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION
+          COMMON-LISP∶∶T method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T
+          COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function.
+          (generic function)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method. (method)
+        • *note transduce: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function.
+          (function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function.
+          (generic function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method.
+          (method)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶T method. (method)
+*Internal Definitions*
+     *note defdocumentation: go to the
+     DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro. (macro)
+
+
+File: data-lens-transducers.texi.info,  Node: Definitions,  Next: Indexes,  Prev: Packages,  Up: Top
+
+4 Definitions
+*************
+
+Definitions are sorted by export status, category, package, and then by
+lexicographic order.
+
+* Menu:
+
+* Exported definitions::
+* Internal definitions::
+
+
+File: data-lens-transducers.texi.info,  Node: Exported definitions,  Next: Internal definitions,  Prev: Definitions,  Up: Definitions
+
+4.1 Exported definitions
+========================
+
+* Menu:
+
+* Exported macros::
+* Exported functions::
+* Exported generic functions::
+* Exported classes::
+
+
+File: data-lens-transducers.texi.info,  Node: Exported macros,  Next: Exported functions,  Prev: Exported definitions,  Up: Exported definitions
+
+4.1.1 Macros
+------------
+
+ -- Macro: <>1 &rest FUNS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: applying FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: defun-ct NAME (&rest ARGS) &body BODY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: let-fn (&rest BINDINGS) &body BODY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: repeating V
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+ -- Macro: shortcut NAME FUNCTION &body BOUND-ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: • &rest FUNS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens-transducers.texi.info,  Node: Exported functions,  Next: Exported generic functions,  Prev: Exported macros,  Up: Exported definitions
+
+4.1.2 Functions
+---------------
+
+ -- Function: == TARGET &key TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: applicable-when FUN TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: catting ()
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: collecting COLLECTOR
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: combine-matching-lists &key TEST &allow-other-keys
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: compress-runs &key COLLECTOR TEST KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: compressing-runs &key TEST COMBINER
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: cumsum &key ADD-FUN KEY COMBINE ZERO
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: deduping &optional TEST
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: denest &key RESULT-TYPE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: derive DIFF-FUN &key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: dropping N
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: element NUM
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: exclude PRED
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: exit-early ACC
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+ -- Function: filtering FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: hash-table-select HASH-TABLE
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: include PRED
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: iota &key START STEP COUNT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+ -- Function: juxt FUN1 &rest R
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: key-transform FUN KEY-GET KEY-SET
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: lazy-sequence NEXT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+ -- Function: make-alist-lens KEY
+     A lens for updating a alist, discarding previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-hash-table-lens KEY
+     A lens for updating a hash-table, discarding previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-list-lens INDEX
+     A lens for updating a sequence
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-plist-lens KEY
+     A lens for updating a plist, preserving previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: mapcatting FUN
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: mapping FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: maximizing RELATION MEASURE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: mv-filtering FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: mv-mapping FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: mv-selecting FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: of-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: of-max-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: of-min-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: on FUN KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: over FUN &key RESULT-TYPE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: over LENS CB REC
+     Given a lens, a callback and a record, apply the lens to the
+     record, transform it by the callback and return copy of the record,
+     updated to contain the result of the callback.  This is the
+     fundamental operation on a lens and SET and VIEW are implemented in
+     terms of it.
+
+     A lens is any function of the form (lambda (fun) (lambda (rec)
+     ...))  that obeys the lens laws (where == is some reasonable
+     equality operator):
+
+     (== (view lens (set lens value rec))
+     value)
+
+     (== (set lens (view lens rec) rec)
+     rec)
+
+     (== (set lens value2 (set lens value1 rec))
+     (set lens value2 rec))
+
+     The inner lambda returns a functor that determines the policy to be
+     applied to the focused part.  By default, this only uses IDENTITY-
+     and CONSTANT- in order to implement the lens operations over, set
+     and view.
+
+     If these conditions are met, (over (data-lens:<>1 lens1 lens2) ...)
+     is equivalent to using lens2 to focus the part lens1 focuses: note
+     that composition is "backwards" from what one might expect: this is
+     because composition composes the wrapper lambdas and applies the
+     lambda that actually pulls a value out of a record later.
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: pick SELECTOR
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: regex-match REGEX
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: repeating* V &key COUNT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+ -- Function: set LENS V REC
+     Given a lens, a value and a rec, immutably update the rec to
+     contain the new value at the location focused by the lens.
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: slice START &optional END
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: sorted COMPARATOR &rest R &key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: splice-elt ELT FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: splitting &rest FUNCTIONS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: suffixp SUFFIX &key TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: taking N
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: transduce XF BUILD SEQ
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+ -- Function: transform-elt ELT FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: transform-head FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: transform-tail FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: view LENS REC
+     Given a lens and a rec, return the focused value
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: zipping RESULT-TYPE &key FILL-VALUE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens-transducers.texi.info,  Node: Exported generic functions,  Next: Exported classes,  Prev: Exported functions,  Up: Exported definitions
+
+4.1.3 Generic functions
+-----------------------
+
+ -- Generic Function: extract-key MAP KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+     *Methods*
+           -- Method: extract-key (MAP hash-table) KEY
+           -- Method: extract-key (MAP list) KEY
+ -- Generic Function: functionalize IT
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+     *Methods*
+           -- Method: functionalize (IT hash-table)
+           -- Method: functionalize (IT vector)
+           -- Method: functionalize (IT symbol)
+           -- Method: functionalize (IT function)
+ -- Generic Function: init CLIENT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+     *Methods*
+           -- Method: init (IT (eql list-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: init (IT (eql vector-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: init (IT (eql hash-table-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+ -- Generic Function: reduce-generic SEQ FUNC INIT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+     *Methods*
+           -- Method: reduce-generic (SEQ lazy-sequence) (FUNC function)
+                    INIT
+               *Source*
+                    *note lazy-sequence.lisp: go to the
+                    data-lens/beta/transducers/lazy-sequence․lisp file.
+                    (file)
+           -- Method: reduce-generic (SEQ sequence) (FUNC function) INIT
+           -- Method: reduce-generic (SEQ sequence) (FUNC symbol) INIT
+           -- Method: reduce-generic SEQ (FUNC symbol) INIT
+           -- Method: reduce-generic (SEQ hash-table) (FUNC function)
+                    INIT
+ -- Generic Function: stepper CLIENT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+     *Methods*
+           -- Method: stepper (IT (eql list-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: stepper (IT (eql vector-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: stepper (IT (eql hash-table-builder))
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+ -- Generic Function: unwrap CLIENT OBJ
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+     *Methods*
+           -- Method: unwrap (IT (eql list-builder)) OBJ
+               *Source*
+                    *note transducers.lisp: go to the
+                    data-lens/beta/transducers/transducers․lisp file.
+                    (file)
+           -- Method: unwrap CLIENT OBJ
+
+
+File: data-lens-transducers.texi.info,  Node: Exported classes,  Prev: Exported generic functions,  Up: Exported definitions
+
+4.1.4 Classes
+-------------
+
+ -- Class: lazy-sequence ()
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note lazy-sequence.lisp: go to the
+          data-lens/beta/transducers/lazy-sequence․lisp file. (file)
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note reduce-generic: go to the
+               DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+               DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE
+               COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method. (method)
+             • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+               DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method. (method)
+     *Direct slots*
+           -- Slot: %next
+               *Initargs*
+                    :next
+               *Readers*
+                    *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+                    generic function. (generic function)
+
+
+File: data-lens-transducers.texi.info,  Node: Internal definitions,  Prev: Exported definitions,  Up: Definitions
+
+4.2 Internal definitions
+========================
+
+* Menu:
+
+* Internal macros::
+* Internal functions::
+* Internal generic functions::
+* Internal classes::
+
+
+File: data-lens-transducers.texi.info,  Node: Internal macros,  Next: Internal functions,  Prev: Internal definitions,  Up: Internal definitions
+
+4.2.1 Macros
+------------
+
+ -- Macro: comment &body BODY
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Macro: defdocumentation NAME &body DOC-SPECS
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          *note transducer-protocol.lisp: go to the
+          data-lens/beta/transducers/transducer-protocol․lisp file.
+          (file)
+ -- Macro: transducer-lambda &body ((TWO-ARG-ACC TWO-ARG-NEXT) &body
+          TWO-ARG-BODY)
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Macro: updatef PLACE FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens-transducers.texi.info,  Node: Internal functions,  Next: Internal generic functions,  Prev: Internal macros,  Up: Internal definitions
+
+4.2.2 Functions
+---------------
+
+ -- Function: =>> FUN1 FUN2
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: cons-new &key TEST KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: deduplicate &optional TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: eduction XF SEQ
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: filler LENGTH1 LENGTH2 FILL-VALUE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: make-alist-history-lens KEY
+     A lens for updating a alist, preserving previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: matching-list-reducer TEST ACC NEXT
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: seq A B
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          *note transducers.lisp: go to the
+          data-lens/beta/transducers/transducers․lisp file. (file)
+ -- Function: update THING FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: wrap-constant V
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: wrap-identity V
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+
+
+File: data-lens-transducers.texi.info,  Node: Internal generic functions,  Next: Internal classes,  Prev: Internal functions,  Up: Internal definitions
+
+4.2.3 Generic functions
+-----------------------
+
+ -- Generic Function: clone OBJ &rest NEW-INITARGS &key
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Methods*
+           -- Method: clone OBJ &rest NEW-INITARGS &key around
+ -- Generic Function: fmap FUNCTION DATA
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Methods*
+           -- Method: fmap FUNCTION (DATA identity-)
+           -- Method: fmap FUNCTION (DATA constant-)
+           -- Method: fmap FUNCTION (DATA list)
+           -- Method: fmap FUNCTION (DATA vector)
+ -- Generic Function: next OBJECT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Methods*
+           -- Method: next (LAZY-SEQUENCE lazy-sequence)
+               automatically generated reader method
+               *Source*
+                    *note lazy-sequence.lisp: go to the
+                    data-lens/beta/transducers/lazy-sequence․lisp file.
+                    (file)
+ -- Generic Function: unconstant OBJECT
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Methods*
+           -- Method: unconstant (CONSTANT- constant-)
+               automatically generated reader method
+               *Source*
+                    *note optics.lisp: go to the data-lens/optics․lisp
+                    file. (file)
+ -- Generic Function: unidentity OBJECT
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Methods*
+           -- Method: unidentity (IDENTITY- identity-)
+               automatically generated reader method
+               *Source*
+                    *note optics.lisp: go to the data-lens/optics․lisp
+                    file. (file)
+
+
+File: data-lens-transducers.texi.info,  Node: Internal classes,  Prev: Internal generic functions,  Up: Internal definitions
+
+4.2.4 Classes
+-------------
+
+ -- Class: constant- ()
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP
+               COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method.
+               (method)
+             • print-object (method)
+             • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+               DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+     *Direct slots*
+           -- Slot: %v
+               *Initargs*
+                    :value
+               *Readers*
+                    *note unconstant: go to the
+                    DATA-LENS․LENSES∶∶UNCONSTANT generic function.
+                    (generic function)
+ -- Class: identity- ()
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP
+               COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method.
+               (method)
+             • print-object (method)
+             • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+               DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+     *Direct slots*
+           -- Slot: %v
+               *Initargs*
+                    :value
+               *Readers*
+                    *note unidentity: go to the
+                    DATA-LENS․LENSES∶∶UNIDENTITY generic function.
+                    (generic function)
+
+
+File: data-lens-transducers.texi.info,  Node: Indexes,  Prev: Definitions,  Up: Top
+
+Appendix A Indexes
+******************
+
+* Menu:
+
+* Concept index::
+* Function index::
+* Variable index::
+* Data type index::
+
+
+File: data-lens-transducers.texi.info,  Node: Concept index,  Next: Function index,  Prev: Indexes,  Up: Indexes
+
+A.1 Concepts
+============
+
+[index]
+* Menu:
+
+* data-lens.asd:                         The data-lens․asd file.
+                                                                (line 6)
+* data-lens/beta/transducers/lazy-sequence.lisp: The data-lens/beta/transducers/lazy-sequence․lisp file.
+                                                                (line 6)
+* data-lens/beta/transducers/package.lisp: The data-lens/beta/transducers/package․lisp file.
+                                                                (line 6)
+* data-lens/beta/transducers/transducer-protocol.lisp: The data-lens/beta/transducers/transducer-protocol․lisp file.
+                                                                (line 6)
+* data-lens/beta/transducers/transducers.lisp: The data-lens/beta/transducers/transducers․lisp file.
+                                                                (line 6)
+* data-lens/lens.lisp:                   The data-lens/lens․lisp file.
+                                                                (line 6)
+* data-lens/optics.lisp:                 The data-lens/optics․lisp file.
+                                                                (line 6)
+* data-lens/package.lisp:                The data-lens/package․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens.asd:             The data-lens․asd file.
+                                                                (line 6)
+* File, Lisp, data-lens/beta/transducers/lazy-sequence.lisp: The data-lens/beta/transducers/lazy-sequence․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/beta/transducers/package.lisp: The data-lens/beta/transducers/package․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/beta/transducers/transducer-protocol.lisp: The data-lens/beta/transducers/transducer-protocol․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/beta/transducers/transducers.lisp: The data-lens/beta/transducers/transducers․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/lens.lisp:       The data-lens/lens․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/optics.lisp:     The data-lens/optics․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/package.lisp:    The data-lens/package․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens.asd:              The data-lens․asd file.
+                                                                (line 6)
+* Lisp File, data-lens/beta/transducers/lazy-sequence.lisp: The data-lens/beta/transducers/lazy-sequence․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/beta/transducers/package.lisp: The data-lens/beta/transducers/package․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/beta/transducers/transducer-protocol.lisp: The data-lens/beta/transducers/transducer-protocol․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/beta/transducers/transducers.lisp: The data-lens/beta/transducers/transducers․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/lens.lisp:        The data-lens/lens․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/optics.lisp:      The data-lens/optics․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/package.lisp:     The data-lens/package․lisp file.
+                                                                (line 6)
+
+
+File: data-lens-transducers.texi.info,  Node: Function index,  Next: Variable index,  Prev: Concept index,  Up: Indexes
+
+A.2 Functions
+=============
+
+[index]
+* Menu:
+
+* <>1:                                   Exported macros.     (line   6)
+* ==:                                    Exported functions.  (line   6)
+* =>>:                                   Internal functions.  (line   6)
+* •:                                     Exported macros.     (line  38)
+* applicable-when:                       Exported functions.  (line  11)
+* applying:                              Exported macros.     (line  11)
+* catting:                               Exported functions.  (line  16)
+* clone:                                 Internal generic functions.
+                                                              (line   6)
+* clone <1>:                             Internal generic functions.
+                                                              (line  13)
+* collecting:                            Exported functions.  (line  23)
+* combine-matching-lists:                Exported functions.  (line  30)
+* comment:                               Internal macros.     (line   6)
+* compress-runs:                         Exported functions.  (line  35)
+* compressing-runs:                      Exported functions.  (line  40)
+* cons-new:                              Internal functions.  (line  11)
+* cumsum:                                Exported functions.  (line  47)
+* deduping:                              Exported functions.  (line  52)
+* deduplicate:                           Internal functions.  (line  16)
+* defdocumentation:                      Internal macros.     (line  13)
+* defun-ct:                              Exported macros.     (line  16)
+* denest:                                Exported functions.  (line  59)
+* derive:                                Exported functions.  (line  64)
+* dropping:                              Exported functions.  (line  69)
+* eduction:                              Internal functions.  (line  21)
+* element:                               Exported functions.  (line  76)
+* exclude:                               Exported functions.  (line  81)
+* exit-early:                            Exported functions.  (line  86)
+* extract-key:                           Exported generic functions.
+                                                              (line   6)
+* extract-key <1>:                       Exported generic functions.
+                                                              (line  12)
+* extract-key <2>:                       Exported generic functions.
+                                                              (line  13)
+* filler:                                Internal functions.  (line  28)
+* filtering:                             Exported functions.  (line  94)
+* fmap:                                  Internal generic functions.
+                                                              (line  14)
+* fmap <1>:                              Internal generic functions.
+                                                              (line  21)
+* fmap <2>:                              Internal generic functions.
+                                                              (line  22)
+* fmap <3>:                              Internal generic functions.
+                                                              (line  23)
+* fmap <4>:                              Internal generic functions.
+                                                              (line  24)
+* Function, ==:                          Exported functions.  (line   7)
+* Function, =>>:                         Internal functions.  (line   7)
+* Function, applicable-when:             Exported functions.  (line  12)
+* Function, catting:                     Exported functions.  (line  17)
+* Function, collecting:                  Exported functions.  (line  24)
+* Function, combine-matching-lists:      Exported functions.  (line  31)
+* Function, compress-runs:               Exported functions.  (line  36)
+* Function, compressing-runs:            Exported functions.  (line  41)
+* Function, cons-new:                    Internal functions.  (line  12)
+* Function, cumsum:                      Exported functions.  (line  48)
+* Function, deduping:                    Exported functions.  (line  53)
+* Function, deduplicate:                 Internal functions.  (line  17)
+* Function, denest:                      Exported functions.  (line  60)
+* Function, derive:                      Exported functions.  (line  65)
+* Function, dropping:                    Exported functions.  (line  70)
+* Function, eduction:                    Internal functions.  (line  22)
+* Function, element:                     Exported functions.  (line  77)
+* Function, exclude:                     Exported functions.  (line  82)
+* Function, exit-early:                  Exported functions.  (line  87)
+* Function, filler:                      Internal functions.  (line  29)
+* Function, filtering:                   Exported functions.  (line  95)
+* Function, hash-table-select:           Exported functions.  (line 102)
+* Function, include:                     Exported functions.  (line 109)
+* Function, iota:                        Exported functions.  (line 114)
+* Function, juxt:                        Exported functions.  (line 121)
+* Function, key:                         Exported functions.  (line 126)
+* Function, key-transform:               Exported functions.  (line 131)
+* Function, lazy-sequence:               Exported functions.  (line 136)
+* Function, make-alist-history-lens:     Internal functions.  (line  34)
+* Function, make-alist-lens:             Exported functions.  (line 143)
+* Function, make-hash-table-lens:        Exported functions.  (line 150)
+* Function, make-list-lens:              Exported functions.  (line 157)
+* Function, make-plist-lens:             Exported functions.  (line 164)
+* Function, mapcatting:                  Exported functions.  (line 171)
+* Function, mapping:                     Exported functions.  (line 178)
+* Function, matching-list-reducer:       Internal functions.  (line  41)
+* Function, maximizing:                  Exported functions.  (line 185)
+* Function, mv-filtering:                Exported functions.  (line 190)
+* Function, mv-mapping:                  Exported functions.  (line 197)
+* Function, mv-selecting:                Exported functions.  (line 204)
+* Function, of-length:                   Exported functions.  (line 211)
+* Function, of-max-length:               Exported functions.  (line 216)
+* Function, of-min-length:               Exported functions.  (line 221)
+* Function, on:                          Exported functions.  (line 226)
+* Function, over:                        Exported functions.  (line 231)
+* Function, over <1>:                    Exported functions.  (line 236)
+* Function, pick:                        Exported functions.  (line 271)
+* Function, regex-match:                 Exported functions.  (line 276)
+* Function, repeating*:                  Exported functions.  (line 281)
+* Function, seq:                         Internal functions.  (line  46)
+* Function, set:                         Exported functions.  (line 288)
+* Function, slice:                       Exported functions.  (line 296)
+* Function, sorted:                      Exported functions.  (line 301)
+* Function, splice-elt:                  Exported functions.  (line 306)
+* Function, splitting:                   Exported functions.  (line 311)
+* Function, suffixp:                     Exported functions.  (line 318)
+* Function, taking:                      Exported functions.  (line 323)
+* Function, transduce:                   Exported functions.  (line 330)
+* Function, transform-elt:               Exported functions.  (line 338)
+* Function, transform-head:              Exported functions.  (line 343)
+* Function, transform-tail:              Exported functions.  (line 348)
+* Function, update:                      Internal functions.  (line  53)
+* Function, view:                        Exported functions.  (line 353)
+* Function, wrap-constant:               Internal functions.  (line  58)
+* Function, wrap-identity:               Internal functions.  (line  64)
+* Function, zipping:                     Exported functions.  (line 360)
+* functionalize:                         Exported generic functions.
+                                                              (line  14)
+* functionalize <1>:                     Exported generic functions.
+                                                              (line  20)
+* functionalize <2>:                     Exported generic functions.
+                                                              (line  21)
+* functionalize <3>:                     Exported generic functions.
+                                                              (line  22)
+* functionalize <4>:                     Exported generic functions.
+                                                              (line  23)
+* Generic Function, clone:               Internal generic functions.
+                                                              (line   7)
+* Generic Function, extract-key:         Exported generic functions.
+                                                              (line   7)
+* Generic Function, fmap:                Internal generic functions.
+                                                              (line  15)
+* Generic Function, functionalize:       Exported generic functions.
+                                                              (line  15)
+* Generic Function, init:                Exported generic functions.
+                                                              (line  25)
+* Generic Function, next:                Internal generic functions.
+                                                              (line  26)
+* Generic Function, reduce-generic:      Exported generic functions.
+                                                              (line  49)
+* Generic Function, stepper:             Exported generic functions.
+                                                              (line  69)
+* Generic Function, unconstant:          Internal generic functions.
+                                                              (line  37)
+* Generic Function, unidentity:          Internal generic functions.
+                                                              (line  46)
+* Generic Function, unwrap:              Exported generic functions.
+                                                              (line  93)
+* hash-table-select:                     Exported functions.  (line 101)
+* include:                               Exported functions.  (line 108)
+* init:                                  Exported generic functions.
+                                                              (line  24)
+* init <1>:                              Exported generic functions.
+                                                              (line  33)
+* init <2>:                              Exported generic functions.
+                                                              (line  38)
+* init <3>:                              Exported generic functions.
+                                                              (line  43)
+* iota:                                  Exported functions.  (line 113)
+* juxt:                                  Exported functions.  (line 120)
+* key:                                   Exported functions.  (line 125)
+* key-transform:                         Exported functions.  (line 130)
+* lazy-sequence:                         Exported functions.  (line 135)
+* let-fn:                                Exported macros.     (line  21)
+* Macro, <>1:                            Exported macros.     (line   7)
+* Macro, applying:                       Exported macros.     (line  12)
+* Macro, comment:                        Internal macros.     (line   7)
+* Macro, defdocumentation:               Internal macros.     (line  14)
+* Macro, defun-ct:                       Exported macros.     (line  17)
+* Macro, let-fn:                         Exported macros.     (line  22)
+* Macro, repeating:                      Exported macros.     (line  27)
+* Macro, shortcut:                       Exported macros.     (line  34)
+* Macro, transducer-lambda:              Internal macros.     (line  23)
+* Macro, updatef:                        Internal macros.     (line  30)
+* Macro, •:                              Exported macros.     (line  39)
+* make-alist-history-lens:               Internal functions.  (line  33)
+* make-alist-lens:                       Exported functions.  (line 142)
+* make-hash-table-lens:                  Exported functions.  (line 149)
+* make-list-lens:                        Exported functions.  (line 156)
+* make-plist-lens:                       Exported functions.  (line 163)
+* mapcatting:                            Exported functions.  (line 170)
+* mapping:                               Exported functions.  (line 177)
+* matching-list-reducer:                 Internal functions.  (line  40)
+* maximizing:                            Exported functions.  (line 184)
+* Method, clone:                         Internal generic functions.
+                                                              (line  14)
+* Method, extract-key:                   Exported generic functions.
+                                                              (line  13)
+* Method, extract-key <1>:               Exported generic functions.
+                                                              (line  14)
+* Method, fmap:                          Internal generic functions.
+                                                              (line  22)
+* Method, fmap <1>:                      Internal generic functions.
+                                                              (line  23)
+* Method, fmap <2>:                      Internal generic functions.
+                                                              (line  24)
+* Method, fmap <3>:                      Internal generic functions.
+                                                              (line  25)
+* Method, functionalize:                 Exported generic functions.
+                                                              (line  21)
+* Method, functionalize <1>:             Exported generic functions.
+                                                              (line  22)
+* Method, functionalize <2>:             Exported generic functions.
+                                                              (line  23)
+* Method, functionalize <3>:             Exported generic functions.
+                                                              (line  24)
+* Method, init:                          Exported generic functions.
+                                                              (line  34)
+* Method, init <1>:                      Exported generic functions.
+                                                              (line  39)
+* Method, init <2>:                      Exported generic functions.
+                                                              (line  44)
+* Method, next:                          Internal generic functions.
+                                                              (line  31)
+* Method, reduce-generic:                Exported generic functions.
+                                                              (line  59)
+* Method, reduce-generic <1>:            Exported generic functions.
+                                                              (line  64)
+* Method, reduce-generic <2>:            Exported generic functions.
+                                                              (line  65)
+* Method, reduce-generic <3>:            Exported generic functions.
+                                                              (line  66)
+* Method, reduce-generic <4>:            Exported generic functions.
+                                                              (line  68)
+* Method, stepper:                       Exported generic functions.
+                                                              (line  78)
+* Method, stepper <1>:                   Exported generic functions.
+                                                              (line  83)
+* Method, stepper <2>:                   Exported generic functions.
+                                                              (line  88)
+* Method, unconstant:                    Internal generic functions.
+                                                              (line  41)
+* Method, unidentity:                    Internal generic functions.
+                                                              (line  50)
+* Method, unwrap:                        Exported generic functions.
+                                                              (line 102)
+* Method, unwrap <1>:                    Exported generic functions.
+                                                              (line 107)
+* mv-filtering:                          Exported functions.  (line 189)
+* mv-mapping:                            Exported functions.  (line 196)
+* mv-selecting:                          Exported functions.  (line 203)
+* next:                                  Internal generic functions.
+                                                              (line  25)
+* next <1>:                              Internal generic functions.
+                                                              (line  30)
+* of-length:                             Exported functions.  (line 210)
+* of-max-length:                         Exported functions.  (line 215)
+* of-min-length:                         Exported functions.  (line 220)
+* on:                                    Exported functions.  (line 225)
+* over:                                  Exported functions.  (line 230)
+* over <1>:                              Exported functions.  (line 235)
+* pick:                                  Exported functions.  (line 270)
+* reduce-generic:                        Exported generic functions.
+                                                              (line  48)
+* reduce-generic <1>:                    Exported generic functions.
+                                                              (line  57)
+* reduce-generic <2>:                    Exported generic functions.
+                                                              (line  63)
+* reduce-generic <3>:                    Exported generic functions.
+                                                              (line  64)
+* reduce-generic <4>:                    Exported generic functions.
+                                                              (line  65)
+* reduce-generic <5>:                    Exported generic functions.
+                                                              (line  66)
+* regex-match:                           Exported functions.  (line 275)
+* repeating:                             Exported macros.     (line  26)
+* repeating*:                            Exported functions.  (line 280)
+* seq:                                   Internal functions.  (line  45)
+* set:                                   Exported functions.  (line 287)
+* shortcut:                              Exported macros.     (line  33)
+* slice:                                 Exported functions.  (line 295)
+* sorted:                                Exported functions.  (line 300)
+* splice-elt:                            Exported functions.  (line 305)
+* splitting:                             Exported functions.  (line 310)
+* stepper:                               Exported generic functions.
+                                                              (line  68)
+* stepper <1>:                           Exported generic functions.
+                                                              (line  77)
+* stepper <2>:                           Exported generic functions.
+                                                              (line  82)
+* stepper <3>:                           Exported generic functions.
+                                                              (line  87)
+* suffixp:                               Exported functions.  (line 317)
+* taking:                                Exported functions.  (line 322)
+* transduce:                             Exported functions.  (line 329)
+* transducer-lambda:                     Internal macros.     (line  21)
+* transform-elt:                         Exported functions.  (line 337)
+* transform-head:                        Exported functions.  (line 342)
+* transform-tail:                        Exported functions.  (line 347)
+* unconstant:                            Internal generic functions.
+                                                              (line  36)
+* unconstant <1>:                        Internal generic functions.
+                                                              (line  40)
+* unidentity:                            Internal generic functions.
+                                                              (line  45)
+* unidentity <1>:                        Internal generic functions.
+                                                              (line  49)
+* unwrap:                                Exported generic functions.
+                                                              (line  92)
+* unwrap <1>:                            Exported generic functions.
+                                                              (line 101)
+* unwrap <2>:                            Exported generic functions.
+                                                              (line 106)
+* update:                                Internal functions.  (line  52)
+* updatef:                               Internal macros.     (line  29)
+* view:                                  Exported functions.  (line 352)
+* wrap-constant:                         Internal functions.  (line  57)
+* wrap-identity:                         Internal functions.  (line  63)
+* zipping:                               Exported functions.  (line 359)
+
+
+File: data-lens-transducers.texi.info,  Node: Variable index,  Next: Data type index,  Prev: Function index,  Up: Indexes
+
+A.3 Variables
+=============
+
+[index]
+* Menu:
+
+* %next:                                 Exported classes.     (line 23)
+* %v:                                    Internal classes.     (line 22)
+* %v <1>:                                Internal classes.     (line 45)
+* Slot, %next:                           Exported classes.     (line 24)
+* Slot, %v:                              Internal classes.     (line 23)
+* Slot, %v <1>:                          Internal classes.     (line 46)
+
+
+File: data-lens-transducers.texi.info,  Node: Data type index,  Prev: Variable index,  Up: Indexes
+
+A.4 Data types
+==============
+
+[index]
+* Menu:
+
+* Class, constant-:                      Internal classes.     (line  7)
+* Class, identity-:                      Internal classes.     (line 30)
+* Class, lazy-sequence:                  Exported classes.     (line  7)
+* constant-:                             Internal classes.     (line  6)
+* data-lens:                             The data-lens system. (line  6)
+* data-lens <1>:                         The data-lens package.
+                                                               (line  6)
+* data-lens.lenses:                      The data-lens․lenses package.
+                                                               (line  6)
+* data-lens.package:                     The data-lens․package package.
+                                                               (line  6)
+* data-lens.transducers:                 The data-lens․transducers package.
+                                                               (line  6)
+* data-lens.transducers.internals:       The data-lens․transducers․internals package.
+                                                               (line  6)
+* data-lens/beta/transducers:            The data-lens/beta/transducers system.
+                                                               (line  6)
+* identity-:                             Internal classes.     (line 29)
+* lazy-sequence:                         Exported classes.     (line  6)
+* Package, data-lens:                    The data-lens package.
+                                                               (line  6)
+* Package, data-lens.lenses:             The data-lens․lenses package.
+                                                               (line  6)
+* Package, data-lens.package:            The data-lens․package package.
+                                                               (line  6)
+* Package, data-lens.transducers:        The data-lens․transducers package.
+                                                               (line  6)
+* Package, data-lens.transducers.internals: The data-lens․transducers․internals package.
+                                                               (line  6)
+* System, data-lens:                     The data-lens system. (line  6)
+* System, data-lens/beta/transducers:    The data-lens/beta/transducers system.
+                                                               (line  6)
+
+
+
+Tag Table:
+Node: Top297
+Node: Systems868
+Node: The data-lens/beta/transducers system1129
+Ref: go to the data-lens/beta/transducers system1338
+Node: The data-lens system2169
+Ref: go to the data-lens system2328
+Node: Files2948
+Node: Lisp files3177
+Node: The data-lens․asd file4006
+Ref: go to the data-lens․asd file4216
+Node: The data-lens/beta/transducers/package․lisp file4433
+Ref: go to the data-lens/beta/transducers/package․lisp file4747
+Node: The data-lens/beta/transducers/transducer-protocol․lisp file5313
+Ref: go to the data-lens/beta/transducers/transducer-protocol․lisp file5681
+Node: The data-lens/beta/transducers/transducers․lisp file7945
+Ref: go to the data-lens/beta/transducers/transducers․lisp file8303
+Node: The data-lens/beta/transducers/lazy-sequence․lisp file11830
+Ref: go to the data-lens/beta/transducers/lazy-sequence․lisp file12163
+Node: The data-lens/package․lisp file13370
+Ref: go to the data-lens/package․lisp file13635
+Node: The data-lens/optics․lisp file14162
+Ref: go to the data-lens/optics․lisp file14399
+Node: The data-lens/lens․lisp file17094
+Ref: go to the data-lens/lens․lisp file17285
+Node: Packages22204
+Node: The data-lens package22707
+Ref: go to the DATA-LENS package22883
+Node: The data-lens․transducers package27756
+Ref: go to the DATA-LENS․TRANSDUCERS package27979
+Node: The data-lens․package package30930
+Ref: go to the DATA-LENS․PACKAGE package31154
+Node: The data-lens․lenses package31287
+Ref: go to the DATA-LENS․LENSES package31521
+Node: The data-lens․transducers․internals package34410
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS package34634
+Node: Definitions38239
+Node: Exported definitions38526
+Node: Exported macros38819
+Ref: go to the DATA-LENS∶∶<>1 macro39020
+Ref: go to the DATA-LENS∶∶APPLYING macro39212
+Ref: go to the DATA-LENS∶∶DEFUN-CT macro39418
+Ref: go to the DATA-LENS∶∶LET-FN macro39621
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro39801
+Ref: go to the DATA-LENS∶∶SHORTCUT macro40090
+Ref: go to the DATA-LENS∶∶• macro40273
+Node: Exported functions40431
+Ref: go to the DATA-LENS∶∶== function40652
+Ref: go to the DATA-LENS∶∶APPLICABLE-WHEN function40848
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶CATTING function41030
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function41299
+Ref: go to the DATA-LENS∶∶COMBINE-MATCHING-LISTS function41598
+Ref: go to the DATA-LENS∶∶COMPRESS-RUNS function41807
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function42014
+Ref: go to the DATA-LENS∶∶CUMSUM function42299
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function42494
+Ref: go to the DATA-LENS∶∶DENEST function42766
+Ref: go to the DATA-LENS∶∶DERIVE function42962
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function43144
+Ref: go to the DATA-LENS∶∶ELEMENT function43404
+Ref: go to the DATA-LENS∶∶EXCLUDE function43588
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function43774
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function44100
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function44377
+Ref: go to the DATA-LENS∶∶INCLUDE function44638
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶IOTA function44836
+Ref: go to the DATA-LENS∶∶JUXT function45106
+Ref: go to the DATA-LENS∶∶KEY function45285
+Ref: go to the DATA-LENS∶∶KEY-TRANSFORM function45490
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function45680
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function45952
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function46239
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-LIST-LENS function46527
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function46784
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function47061
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function47337
+Ref: go to the DATA-LENS∶∶MAXIMIZING function47613
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function47817
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function48096
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function48377
+Ref: go to the DATA-LENS∶∶OF-LENGTH function48639
+Ref: go to the DATA-LENS∶∶OF-MAX-LENGTH function48828
+Ref: go to the DATA-LENS∶∶OF-MIN-LENGTH function49017
+Ref: go to the DATA-LENS∶∶ON function49199
+Ref: go to the DATA-LENS∶∶OVER function49396
+Ref: go to the DATA-LENS․LENSES∶∶OVER function49584
+Ref: go to the DATA-LENS∶∶PICK function51022
+Ref: go to the DATA-LENS∶∶REGEX-MATCH function51211
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function51406
+Ref: go to the DATA-LENS․LENSES∶∶SET function51673
+Ref: go to the DATA-LENS∶∶SLICE function52030
+Ref: go to the DATA-LENS∶∶SORTED function52236
+Ref: go to the DATA-LENS∶∶SPLICE-ELT function52426
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING function52623
+Ref: go to the DATA-LENS∶∶SUFFIXP function52896
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶TAKING function53076
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function53347
+Ref: go to the DATA-LENS∶∶TRANSFORM-ELT function53665
+Ref: go to the DATA-LENS∶∶TRANSFORM-HEAD function53855
+Ref: go to the DATA-LENS∶∶TRANSFORM-TAIL function54045
+Ref: go to the DATA-LENS․LENSES∶∶VIEW function54230
+Ref: go to the DATA-LENS∶∶ZIPPING function54521
+Node: Exported generic functions54679
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY generic function54925
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method55152
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶LIST COMMON-LISP∶∶T method55201
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE generic function55240
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method55464
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method55512
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method55560
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method55610
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT generic function55644
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method55992
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method56222
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method56456
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function56684
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method57079
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method57333
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method57404
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method57464
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method57559
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function57596
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method57947
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method58180
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method58417
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function58634
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method58988
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method59205
+Node: Exported classes59206
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class59391
+Node: Internal definitions60372
+Node: Internal macros60645
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro60850
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro61133
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro61508
+Ref: go to the DATA-LENS∶∶UPDATEF macro61782
+Node: Internal functions61940
+Ref: go to the DATA-LENS∶∶=>> function62155
+Ref: go to the DATA-LENS∶∶CONS-NEW function62349
+Ref: go to the DATA-LENS∶∶DEDUPLICATE function62547
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function62734
+Ref: go to the DATA-LENS∶∶FILLER function63016
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function63215
+Ref: go to the DATA-LENS∶∶MATCHING-LIST-REDUCER function63513
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶SEQ function63692
+Ref: go to the DATA-LENS∶∶UPDATE function63968
+Ref: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT function64155
+Ref: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY function64372
+Node: Internal generic functions64560
+Ref: go to the DATA-LENS․LENSES∶∶CLONE generic function64820
+Ref: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T AROUND method65085
+Ref: go to the DATA-LENS․LENSES∶∶FMAP generic function65126
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method65381
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method65434
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶LIST method65482
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶VECTOR method65532
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function65566
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method65745
+Ref: go to the DATA-LENS․LENSES∶∶UNCONSTANT generic function66019
+Ref: go to the DATA-LENS․LENSES∶∶UNCONSTANT DATA-LENS․LENSES∶∶CONSTANT- method66176
+Ref: go to the DATA-LENS․LENSES∶∶UNIDENTITY generic function66399
+Ref: go to the DATA-LENS․LENSES∶∶UNIDENTITY DATA-LENS․LENSES∶∶IDENTITY- method66556
+Node: Internal classes66740
+Ref: go to the DATA-LENS․LENSES∶∶CONSTANT- class66921
+Ref: go to the DATA-LENS․LENSES∶∶IDENTITY- class67849
+Node: Indexes68754
+Node: Concept index68966
+Node: Function index73120
+Node: Variable index95332
+Node: Data type index95946
+
+End Tag Table
+
+
+Local Variables:
+coding: utf-8
+End:
diff --git a/docs/data-lens.info b/docs/data-lens.info
new file mode 100644
index 0000000..d89f4ee
--- /dev/null
+++ b/docs/data-lens.info
@@ -0,0 +1,1916 @@
+This is data-lens.info, produced by makeinfo version 6.7 from
+data-lens.texi.
+
+INFO-DIR-SECTION Common Lisp
+START-INFO-DIR-ENTRY
+* data-lens Reference: (data-lens). The data-lens Reference Manual.
+END-INFO-DIR-ENTRY
+
+
+File: data-lens.info,  Node: Top,  Next: Systems,  Prev: (dir),  Up: (dir)
+
+The data-lens Reference Manual
+******************************
+
+This is the data-lens Reference Manual, generated automatically by Declt
+version 3.0 "Montgomery Scott" on Wed Jan 06 14:19:05 2021 GMT-8.
+
+* Menu:
+
+* Systems:: The systems documentation
+* Files:: The files documentation
+* Packages:: The packages documentation
+* Definitions:: The symbols documentation
+* Indexes:: Concepts, functions, variables and data types
+
+
+File: data-lens.info,  Node: Systems,  Next: Files,  Prev: Top,  Up: Top
+
+1 Systems
+*********
+
+The main system appears first, followed by any subsystem dependency.
+
+* Menu:
+
+* The data-lens system::
+
+
+File: data-lens.info,  Node: The data-lens system,  Prev: Systems,  Up: Systems
+
+1.1 data-lens
+=============
+
+*Author*
+     Edward Langley <<el-cl@elangley.org>>
+*License*
+     MIT
+*Description*
+     Utilities for building data transformations from composable
+     functions, modeled on lenses and transducers
+*Dependencies*
+        • cl-ppcre
+        • alexandria
+        • serapeum
+*Source*
+     *note data-lens.asd: go to the data-lens․asd file. (file)
+*Components*
+        • *note package.lisp: go to the data-lens/package․lisp file.
+          (file)
+        • *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+        • *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens.info,  Node: Files,  Next: Packages,  Prev: Systems,  Up: Top
+
+2 Files
+*******
+
+Files are sorted by type and then listed depth-first from the systems
+components trees.
+
+* Menu:
+
+* Lisp files::
+
+
+File: data-lens.info,  Node: Lisp files,  Prev: Files,  Up: Files
+
+2.1 Lisp
+========
+
+* Menu:
+
+* The data-lens.asd file: The data-lens․asd file.
+* The data-lens/package.lisp file: The data-lens/package․lisp file.
+* The data-lens/optics.lisp file: The data-lens/optics․lisp file.
+* The data-lens/lens.lisp file: The data-lens/lens․lisp file.
+
+
+File: data-lens.info,  Node: The data-lens․asd file,  Next: The data-lens/package․lisp file,  Prev: Lisp files,  Up: Lisp files
+
+2.1.1 data-lens.asd
+-------------------
+
+*Location*
+     data-lens.asd
+*Systems*
+     *note data-lens: go to the data-lens system. (system)
+
+
+File: data-lens.info,  Node: The data-lens/package․lisp file,  Next: The data-lens/optics․lisp file,  Prev: The data-lens․asd file,  Up: Lisp files
+
+2.1.2 data-lens/package.lisp
+----------------------------
+
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     package.lisp
+*Packages*
+        • *note data-lens: go to the DATA-LENS package.
+        • *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+        • *note data-lens.package: go to the DATA-LENS․PACKAGE package.
+        • *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+        • *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+
+
+File: data-lens.info,  Node: The data-lens/optics․lisp file,  Next: The data-lens/lens․lisp file,  Prev: The data-lens/package․lisp file,  Up: Lisp files
+
+2.1.3 data-lens/optics.lisp
+---------------------------
+
+*Dependency*
+     *note package.lisp: go to the data-lens/package․lisp file. (file)
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     optics.lisp
+*Exported Definitions*
+        • *note make-alist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function. (function)
+        • *note make-hash-table-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function. (function)
+        • *note make-list-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-LIST-LENS function. (function)
+        • *note make-plist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function. (function)
+        • *note over: go to the DATA-LENS․LENSES∶∶OVER function.
+          (function)
+        • *note set: go to the DATA-LENS․LENSES∶∶SET function.
+          (function)
+        • *note view: go to the DATA-LENS․LENSES∶∶VIEW function.
+          (function)
+*Internal Definitions*
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE generic
+          function. (generic function)
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T
+          AROUND method. (method)
+        • *note constant-: go to the DATA-LENS․LENSES∶∶CONSTANT- class.
+          (class)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP generic function.
+          (generic function)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶LIST method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note identity-: go to the DATA-LENS․LENSES∶∶IDENTITY- class.
+          (class)
+        • *note make-alist-history-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function. (function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note wrap-constant: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT
+          function. (function)
+        • *note wrap-identity: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY
+          function. (function)
+
+
+File: data-lens.info,  Node: The data-lens/lens․lisp file,  Prev: The data-lens/optics․lisp file,  Up: Lisp files
+
+2.1.4 data-lens/lens.lisp
+-------------------------
+
+*Dependency*
+     *note optics.lisp: go to the data-lens/optics․lisp file. (file)
+*Parent*
+     *note data-lens: go to the data-lens system. (system)
+*Location*
+     lens.lisp
+*Exported Definitions*
+        • *note <>1: go to the DATA-LENS∶∶<>1 macro. (macro)
+        • *note ==: go to the DATA-LENS∶∶== function. (function)
+        • *note applicable-when: go to the DATA-LENS∶∶APPLICABLE-WHEN
+          function. (function)
+        • *note applying: go to the DATA-LENS∶∶APPLYING macro. (macro)
+        • *note combine-matching-lists: go to the
+          DATA-LENS∶∶COMBINE-MATCHING-LISTS function. (function)
+        • *note compress-runs: go to the DATA-LENS∶∶COMPRESS-RUNS
+          function. (function)
+        • *note cumsum: go to the DATA-LENS∶∶CUMSUM function. (function)
+        • *note defun-ct: go to the DATA-LENS∶∶DEFUN-CT macro. (macro)
+        • *note denest: go to the DATA-LENS∶∶DENEST function. (function)
+        • *note derive: go to the DATA-LENS∶∶DERIVE function. (function)
+        • *note element: go to the DATA-LENS∶∶ELEMENT function.
+          (function)
+        • *note exclude: go to the DATA-LENS∶∶EXCLUDE function.
+          (function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY generic
+          function. (generic function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method. (method)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶LIST COMMON-LISP∶∶T method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          generic function. (generic function)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶HASH-TABLE method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶SYMBOL method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶FUNCTION method. (method)
+        • *note include: go to the DATA-LENS∶∶INCLUDE function.
+          (function)
+        • *note juxt: go to the DATA-LENS∶∶JUXT function. (function)
+        • *note key: go to the DATA-LENS∶∶KEY function. (function)
+        • *note key-transform: go to the DATA-LENS∶∶KEY-TRANSFORM
+          function. (function)
+        • *note let-fn: go to the DATA-LENS∶∶LET-FN macro. (macro)
+        • *note maximizing: go to the DATA-LENS∶∶MAXIMIZING function.
+          (function)
+        • *note of-length: go to the DATA-LENS∶∶OF-LENGTH function.
+          (function)
+        • *note of-max-length: go to the DATA-LENS∶∶OF-MAX-LENGTH
+          function. (function)
+        • *note of-min-length: go to the DATA-LENS∶∶OF-MIN-LENGTH
+          function. (function)
+        • *note on: go to the DATA-LENS∶∶ON function. (function)
+        • *note over: go to the DATA-LENS∶∶OVER function. (function)
+        • *note pick: go to the DATA-LENS∶∶PICK function. (function)
+        • *note regex-match: go to the DATA-LENS∶∶REGEX-MATCH function.
+          (function)
+        • *note shortcut: go to the DATA-LENS∶∶SHORTCUT macro. (macro)
+        • *note slice: go to the DATA-LENS∶∶SLICE function. (function)
+        • *note sorted: go to the DATA-LENS∶∶SORTED function. (function)
+        • *note splice-elt: go to the DATA-LENS∶∶SPLICE-ELT function.
+          (function)
+        • *note suffixp: go to the DATA-LENS∶∶SUFFIXP function.
+          (function)
+        • *note transform-elt: go to the DATA-LENS∶∶TRANSFORM-ELT
+          function. (function)
+        • *note transform-head: go to the DATA-LENS∶∶TRANSFORM-HEAD
+          function. (function)
+        • *note transform-tail: go to the DATA-LENS∶∶TRANSFORM-TAIL
+          function. (function)
+        • *note zipping: go to the DATA-LENS∶∶ZIPPING function.
+          (function)
+        • *note •: go to the DATA-LENS∶∶• macro. (macro)
+*Internal Definitions*
+        • *note =>>: go to the DATA-LENS∶∶=>> function. (function)
+        • *note cons-new: go to the DATA-LENS∶∶CONS-NEW function.
+          (function)
+        • *note deduplicate: go to the DATA-LENS∶∶DEDUPLICATE function.
+          (function)
+        • *note filler: go to the DATA-LENS∶∶FILLER function. (function)
+        • *note matching-list-reducer: go to the
+          DATA-LENS∶∶MATCHING-LIST-REDUCER function. (function)
+        • *note update: go to the DATA-LENS∶∶UPDATE function. (function)
+        • *note updatef: go to the DATA-LENS∶∶UPDATEF macro. (macro)
+
+
+File: data-lens.info,  Node: Packages,  Next: Definitions,  Prev: Files,  Up: Top
+
+3 Packages
+**********
+
+Packages are listed by definition order.
+
+* Menu:
+
+* The data-lens package::
+* The data-lens.transducers package: The data-lens․transducers package.
+* The data-lens.package package: The data-lens․package package.
+* The data-lens.lenses package: The data-lens․lenses package.
+* The data-lens.transducers.internals package: The data-lens․transducers․internals package.
+
+
+File: data-lens.info,  Node: The data-lens package,  Next: The data-lens․transducers package,  Prev: Packages,  Up: Packages
+
+3.1 data-lens
+=============
+
+*Source*
+     *note package.lisp: go to the data-lens/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note <>1: go to the DATA-LENS∶∶<>1 macro. (macro)
+        • *note ==: go to the DATA-LENS∶∶== function. (function)
+        • *note applicable-when: go to the DATA-LENS∶∶APPLICABLE-WHEN
+          function. (function)
+        • *note applying: go to the DATA-LENS∶∶APPLYING macro. (macro)
+        • *note combine-matching-lists: go to the
+          DATA-LENS∶∶COMBINE-MATCHING-LISTS function. (function)
+        • *note compress-runs: go to the DATA-LENS∶∶COMPRESS-RUNS
+          function. (function)
+        • *note cumsum: go to the DATA-LENS∶∶CUMSUM function. (function)
+        • *note defun-ct: go to the DATA-LENS∶∶DEFUN-CT macro. (macro)
+        • *note denest: go to the DATA-LENS∶∶DENEST function. (function)
+        • *note derive: go to the DATA-LENS∶∶DERIVE function. (function)
+        • *note element: go to the DATA-LENS∶∶ELEMENT function.
+          (function)
+        • *note exclude: go to the DATA-LENS∶∶EXCLUDE function.
+          (function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY generic
+          function. (generic function)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method. (method)
+        • *note extract-key: go to the DATA-LENS∶∶EXTRACT-KEY
+          COMMON-LISP∶∶LIST COMMON-LISP∶∶T method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          generic function. (generic function)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶HASH-TABLE method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶SYMBOL method. (method)
+        • *note functionalize: go to the DATA-LENS∶∶FUNCTIONALIZE
+          COMMON-LISP∶∶FUNCTION method. (method)
+        • *note include: go to the DATA-LENS∶∶INCLUDE function.
+          (function)
+        • *note juxt: go to the DATA-LENS∶∶JUXT function. (function)
+        • *note key: go to the DATA-LENS∶∶KEY function. (function)
+        • *note key-transform: go to the DATA-LENS∶∶KEY-TRANSFORM
+          function. (function)
+        • *note let-fn: go to the DATA-LENS∶∶LET-FN macro. (macro)
+        • *note maximizing: go to the DATA-LENS∶∶MAXIMIZING function.
+          (function)
+        • *note of-length: go to the DATA-LENS∶∶OF-LENGTH function.
+          (function)
+        • *note of-max-length: go to the DATA-LENS∶∶OF-MAX-LENGTH
+          function. (function)
+        • *note of-min-length: go to the DATA-LENS∶∶OF-MIN-LENGTH
+          function. (function)
+        • *note on: go to the DATA-LENS∶∶ON function. (function)
+        • *note over: go to the DATA-LENS∶∶OVER function. (function)
+        • *note pick: go to the DATA-LENS∶∶PICK function. (function)
+        • *note regex-match: go to the DATA-LENS∶∶REGEX-MATCH function.
+          (function)
+        • *note shortcut: go to the DATA-LENS∶∶SHORTCUT macro. (macro)
+        • *note slice: go to the DATA-LENS∶∶SLICE function. (function)
+        • *note sorted: go to the DATA-LENS∶∶SORTED function. (function)
+        • *note splice-elt: go to the DATA-LENS∶∶SPLICE-ELT function.
+          (function)
+        • *note suffixp: go to the DATA-LENS∶∶SUFFIXP function.
+          (function)
+        • *note transform-elt: go to the DATA-LENS∶∶TRANSFORM-ELT
+          function. (function)
+        • *note transform-head: go to the DATA-LENS∶∶TRANSFORM-HEAD
+          function. (function)
+        • *note transform-tail: go to the DATA-LENS∶∶TRANSFORM-TAIL
+          function. (function)
+        • *note zipping: go to the DATA-LENS∶∶ZIPPING function.
+          (function)
+        • *note •: go to the DATA-LENS∶∶• macro. (macro)
+*Internal Definitions*
+        • *note =>>: go to the DATA-LENS∶∶=>> function. (function)
+        • *note cons-new: go to the DATA-LENS∶∶CONS-NEW function.
+          (function)
+        • *note deduplicate: go to the DATA-LENS∶∶DEDUPLICATE function.
+          (function)
+        • *note filler: go to the DATA-LENS∶∶FILLER function. (function)
+        • *note matching-list-reducer: go to the
+          DATA-LENS∶∶MATCHING-LIST-REDUCER function. (function)
+        • *note update: go to the DATA-LENS∶∶UPDATE function. (function)
+        • *note updatef: go to the DATA-LENS∶∶UPDATEF macro. (macro)
+
+
+File: data-lens.info,  Node: The data-lens․transducers package,  Next: The data-lens․package package,  Prev: The data-lens package,  Up: Packages
+
+3.2 data-lens.transducers
+=========================
+
+*Source*
+     *note package.lisp: go to the data-lens/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note catting: go to the DATA-LENS․TRANSDUCERS∶∶CATTING
+          function. (function)
+        • *note collecting: go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING
+          function. (function)
+        • *note compressing-runs: go to the
+          DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function. (function)
+        • *note deduping: go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING
+          function. (function)
+        • *note dropping: go to the DATA-LENS․TRANSDUCERS∶∶DROPPING
+          function. (function)
+        • *note filtering: go to the DATA-LENS․TRANSDUCERS∶∶FILTERING
+          function. (function)
+        • *note hash-table-select: go to the
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function. (function)
+        • *note iota: go to the DATA-LENS․TRANSDUCERS∶∶IOTA function.
+          (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function. (function)
+        • *note lazy-sequence: go to the
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class. (class)
+        • *note mapcatting: go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING
+          function. (function)
+        • *note mapping: go to the DATA-LENS․TRANSDUCERS∶∶MAPPING
+          function. (function)
+        • *note mv-filtering: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function. (function)
+        • *note mv-mapping: go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING
+          function. (function)
+        • *note mv-selecting: go to the
+          DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function. (function)
+        • *note repeating: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING
+          macro. (macro)
+        • *note repeating*: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING*
+          function. (function)
+        • *note splitting: go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING
+          function. (function)
+        • *note taking: go to the DATA-LENS․TRANSDUCERS∶∶TAKING
+          function. (function)
+*Internal Definitions*
+        • *note comment: go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro.
+          (macro)
+        • *note eduction: go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION
+          function. (function)
+        • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic
+          function. (generic function)
+        • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method. (method)
+        • *note seq: go to the DATA-LENS․TRANSDUCERS∶∶SEQ function.
+          (function)
+        • *note transducer-lambda: go to the
+          DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro. (macro)
+
+
+File: data-lens.info,  Node: The data-lens․package package,  Next: The data-lens․lenses package,  Prev: The data-lens․transducers package,  Up: Packages
+
+3.3 data-lens.package
+=====================
+
+*Source*
+     *note package.lisp: go to the data-lens/package․lisp file. (file)
+*Use List*
+     common-lisp
+
+
+File: data-lens.info,  Node: The data-lens․lenses package,  Next: The data-lens․transducers․internals package,  Prev: The data-lens․package package,  Up: Packages
+
+3.4 data-lens.lenses
+====================
+
+*Source*
+     *note package.lisp: go to the data-lens/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note make-alist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function. (function)
+        • *note make-hash-table-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function. (function)
+        • *note make-list-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-LIST-LENS function. (function)
+        • *note make-plist-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function. (function)
+        • *note over: go to the DATA-LENS․LENSES∶∶OVER function.
+          (function)
+        • *note set: go to the DATA-LENS․LENSES∶∶SET function.
+          (function)
+        • *note view: go to the DATA-LENS․LENSES∶∶VIEW function.
+          (function)
+*Internal Definitions*
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE generic
+          function. (generic function)
+        • *note clone: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T
+          AROUND method. (method)
+        • *note constant-: go to the DATA-LENS․LENSES∶∶CONSTANT- class.
+          (class)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP generic function.
+          (generic function)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶LIST method. (method)
+        • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶VECTOR method. (method)
+        • *note identity-: go to the DATA-LENS․LENSES∶∶IDENTITY- class.
+          (class)
+        • *note make-alist-history-lens: go to the
+          DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function. (function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          generic function. (generic function)
+        • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+          DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          generic function. (generic function)
+        • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+          DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+        • *note wrap-constant: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT
+          function. (function)
+        • *note wrap-identity: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY
+          function. (function)
+
+
+File: data-lens.info,  Node: The data-lens․transducers․internals package,  Prev: The data-lens․lenses package,  Up: Packages
+
+3.5 data-lens.transducers.internals
+===================================
+
+*Source*
+     *note package.lisp: go to the data-lens/package․lisp file. (file)
+*Use List*
+     common-lisp
+*Exported Definitions*
+        • *note exit-early: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function.
+          (function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          generic function. (generic function)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note init: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT
+          ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method.
+          (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic
+          function. (generic function)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION
+          COMMON-LISP∶∶T method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T
+          method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T
+          COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method. (method)
+        • *note reduce-generic: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+          COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T
+          method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function.
+          (generic function)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method. (method)
+        • *note stepper: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql
+          DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method. (method)
+        • *note transduce: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function.
+          (function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function.
+          (generic function)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql
+          DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method.
+          (method)
+        • *note unwrap: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T
+          COMMON-LISP∶∶T method. (method)
+*Internal Definitions*
+     *note defdocumentation: go to the
+     DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro. (macro)
+
+
+File: data-lens.info,  Node: Definitions,  Next: Indexes,  Prev: Packages,  Up: Top
+
+4 Definitions
+*************
+
+Definitions are sorted by export status, category, package, and then by
+lexicographic order.
+
+* Menu:
+
+* Exported definitions::
+* Internal definitions::
+
+
+File: data-lens.info,  Node: Exported definitions,  Next: Internal definitions,  Prev: Definitions,  Up: Definitions
+
+4.1 Exported definitions
+========================
+
+* Menu:
+
+* Exported macros::
+* Exported functions::
+* Exported generic functions::
+* Exported classes::
+
+
+File: data-lens.info,  Node: Exported macros,  Next: Exported functions,  Prev: Exported definitions,  Up: Exported definitions
+
+4.1.1 Macros
+------------
+
+ -- Macro: <>1 &rest FUNS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: applying FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: defun-ct NAME (&rest ARGS) &body BODY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: let-fn (&rest BINDINGS) &body BODY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: repeating V
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          lazy-sequence.lisp
+ -- Macro: shortcut NAME FUNCTION &body BOUND-ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Macro: • &rest FUNS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens.info,  Node: Exported functions,  Next: Exported generic functions,  Prev: Exported macros,  Up: Exported definitions
+
+4.1.2 Functions
+---------------
+
+ -- Function: == TARGET &key TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: applicable-when FUN TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: catting ()
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: collecting COLLECTOR
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: combine-matching-lists &key TEST &allow-other-keys
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: compress-runs &key COLLECTOR TEST KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: compressing-runs &key TEST COMBINER
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: cumsum &key ADD-FUN KEY COMBINE ZERO
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: deduping &optional TEST
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: denest &key RESULT-TYPE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: derive DIFF-FUN &key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: dropping N
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: element NUM
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: exclude PRED
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: exit-early ACC
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          transducer-protocol.lisp
+ -- Function: filtering FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: hash-table-select HASH-TABLE
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: include PRED
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: iota &key START STEP COUNT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          lazy-sequence.lisp
+ -- Function: juxt FUN1 &rest R
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: key-transform FUN KEY-GET KEY-SET
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: lazy-sequence NEXT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          lazy-sequence.lisp
+ -- Function: make-alist-lens KEY
+     A lens for updating a alist, discarding previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-hash-table-lens KEY
+     A lens for updating a hash-table, discarding previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-list-lens INDEX
+     A lens for updating a sequence
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: make-plist-lens KEY
+     A lens for updating a plist, preserving previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: mapcatting FUN
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: mapping FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: maximizing RELATION MEASURE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: mv-filtering FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: mv-mapping FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: mv-selecting FUNCTION &rest ARGS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: of-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: of-max-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: of-min-length LEN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: on FUN KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: over FUN &key RESULT-TYPE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: over LENS CB REC
+     Given a lens, a callback and a record, apply the lens to the
+     record, transform it by the callback and return copy of the record,
+     updated to contain the result of the callback.  This is the
+     fundamental operation on a lens and SET and VIEW are implemented in
+     terms of it.
+
+     A lens is any function of the form (lambda (fun) (lambda (rec)
+     ...))  that obeys the lens laws (where == is some reasonable
+     equality operator):
+
+     (== (view lens (set lens value rec))
+     value)
+
+     (== (set lens (view lens rec) rec)
+     rec)
+
+     (== (set lens value2 (set lens value1 rec))
+     (set lens value2 rec))
+
+     The inner lambda returns a functor that determines the policy to be
+     applied to the focused part.  By default, this only uses IDENTITY-
+     and CONSTANT- in order to implement the lens operations over, set
+     and view.
+
+     If these conditions are met, (over (data-lens:<>1 lens1 lens2) ...)
+     is equivalent to using lens2 to focus the part lens1 focuses: note
+     that composition is "backwards" from what one might expect: this is
+     because composition composes the wrapper lambdas and applies the
+     lambda that actually pulls a value out of a record later.
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: pick SELECTOR
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: regex-match REGEX
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: repeating* V &key COUNT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          lazy-sequence.lisp
+ -- Function: set LENS V REC
+     Given a lens, a value and a rec, immutably update the rec to
+     contain the new value at the location focused by the lens.
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: slice START &optional END
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: sorted COMPARATOR &rest R &key KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: splice-elt ELT FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: splitting &rest FUNCTIONS
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: suffixp SUFFIX &key TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: taking N
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: transduce XF BUILD SEQ
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          transducer-protocol.lisp
+ -- Function: transform-elt ELT FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: transform-head FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: transform-tail FUN
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: view LENS REC
+     Given a lens and a rec, return the focused value
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: zipping RESULT-TYPE &key FILL-VALUE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens.info,  Node: Exported generic functions,  Next: Exported classes,  Prev: Exported functions,  Up: Exported definitions
+
+4.1.3 Generic functions
+-----------------------
+
+ -- Generic Function: extract-key MAP KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+     *Methods*
+           -- Method: extract-key (MAP hash-table) KEY
+           -- Method: extract-key (MAP list) KEY
+ -- Generic Function: functionalize IT
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+     *Methods*
+           -- Method: functionalize (IT hash-table)
+           -- Method: functionalize (IT vector)
+           -- Method: functionalize (IT symbol)
+           -- Method: functionalize (IT function)
+ -- Generic Function: init CLIENT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          transducer-protocol.lisp
+     *Methods*
+           -- Method: init (IT (eql list-builder))
+               *Source*
+                    transducers.lisp
+           -- Method: init (IT (eql vector-builder))
+               *Source*
+                    transducers.lisp
+           -- Method: init (IT (eql hash-table-builder))
+               *Source*
+                    transducers.lisp
+ -- Generic Function: reduce-generic SEQ FUNC INIT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          transducer-protocol.lisp
+     *Methods*
+           -- Method: reduce-generic (SEQ lazy-sequence) (FUNC function)
+                    INIT
+               *Source*
+                    lazy-sequence.lisp
+           -- Method: reduce-generic (SEQ sequence) (FUNC function) INIT
+           -- Method: reduce-generic (SEQ sequence) (FUNC symbol) INIT
+           -- Method: reduce-generic SEQ (FUNC symbol) INIT
+           -- Method: reduce-generic (SEQ hash-table) (FUNC function)
+                    INIT
+ -- Generic Function: stepper CLIENT
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          transducer-protocol.lisp
+     *Methods*
+           -- Method: stepper (IT (eql list-builder))
+               *Source*
+                    transducers.lisp
+           -- Method: stepper (IT (eql vector-builder))
+               *Source*
+                    transducers.lisp
+           -- Method: stepper (IT (eql hash-table-builder))
+               *Source*
+                    transducers.lisp
+ -- Generic Function: unwrap CLIENT OBJ
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          transducer-protocol.lisp
+     *Methods*
+           -- Method: unwrap (IT (eql list-builder)) OBJ
+               *Source*
+                    transducers.lisp
+           -- Method: unwrap CLIENT OBJ
+
+
+File: data-lens.info,  Node: Exported classes,  Prev: Exported generic functions,  Up: Exported definitions
+
+4.1.4 Classes
+-------------
+
+ -- Class: lazy-sequence ()
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          lazy-sequence.lisp
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note reduce-generic: go to the
+               DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC
+               DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE
+               COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method. (method)
+             • *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+               DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method. (method)
+     *Direct slots*
+           -- Slot: %next
+               *Initargs*
+                    :next
+               *Readers*
+                    *note next: go to the DATA-LENS․TRANSDUCERS∶∶NEXT
+                    generic function. (generic function)
+
+
+File: data-lens.info,  Node: Internal definitions,  Prev: Exported definitions,  Up: Definitions
+
+4.2 Internal definitions
+========================
+
+* Menu:
+
+* Internal macros::
+* Internal functions::
+* Internal generic functions::
+* Internal classes::
+
+
+File: data-lens.info,  Node: Internal macros,  Next: Internal functions,  Prev: Internal definitions,  Up: Internal definitions
+
+4.2.1 Macros
+------------
+
+ -- Macro: comment &body BODY
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Macro: defdocumentation NAME &body DOC-SPECS
+     *Package*
+          *note data-lens.transducers.internals: go to the
+          DATA-LENS․TRANSDUCERS․INTERNALS package.
+     *Source*
+          transducer-protocol.lisp
+ -- Macro: transducer-lambda &body ((TWO-ARG-ACC TWO-ARG-NEXT) &body
+          TWO-ARG-BODY)
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Macro: updatef PLACE FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+
+
+File: data-lens.info,  Node: Internal functions,  Next: Internal generic functions,  Prev: Internal macros,  Up: Internal definitions
+
+4.2.2 Functions
+---------------
+
+ -- Function: =>> FUN1 FUN2
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: cons-new &key TEST KEY
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: deduplicate &optional TEST
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: eduction XF SEQ
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: filler LENGTH1 LENGTH2 FILL-VALUE
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: make-alist-history-lens KEY
+     A lens for updating a alist, preserving previous values
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: matching-list-reducer TEST ACC NEXT
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: seq A B
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Source*
+          transducers.lisp
+ -- Function: update THING FUN &rest ARGS
+     *Package*
+          *note data-lens: go to the DATA-LENS package.
+     *Source*
+          *note lens.lisp: go to the data-lens/lens․lisp file. (file)
+ -- Function: wrap-constant V
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+ -- Function: wrap-identity V
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+
+
+File: data-lens.info,  Node: Internal generic functions,  Next: Internal classes,  Prev: Internal functions,  Up: Internal definitions
+
+4.2.3 Generic functions
+-----------------------
+
+ -- Generic Function: clone OBJ &rest NEW-INITARGS &key
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Methods*
+           -- Method: clone OBJ &rest NEW-INITARGS &key around
+ -- Generic Function: fmap FUNCTION DATA
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Methods*
+           -- Method: fmap FUNCTION (DATA identity-)
+           -- Method: fmap FUNCTION (DATA constant-)
+           -- Method: fmap FUNCTION (DATA list)
+           -- Method: fmap FUNCTION (DATA vector)
+ -- Generic Function: next OBJECT
+     *Package*
+          *note data-lens.transducers: go to the DATA-LENS․TRANSDUCERS
+          package.
+     *Methods*
+           -- Method: next (LAZY-SEQUENCE lazy-sequence)
+               automatically generated reader method
+               *Source*
+                    lazy-sequence.lisp
+ -- Generic Function: unconstant OBJECT
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Methods*
+           -- Method: unconstant (CONSTANT- constant-)
+               automatically generated reader method
+               *Source*
+                    *note optics.lisp: go to the data-lens/optics․lisp
+                    file. (file)
+ -- Generic Function: unidentity OBJECT
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Methods*
+           -- Method: unidentity (IDENTITY- identity-)
+               automatically generated reader method
+               *Source*
+                    *note optics.lisp: go to the data-lens/optics․lisp
+                    file. (file)
+
+
+File: data-lens.info,  Node: Internal classes,  Prev: Internal generic functions,  Up: Internal definitions
+
+4.2.4 Classes
+-------------
+
+ -- Class: constant- ()
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP
+               COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method.
+               (method)
+             • print-object (method)
+             • *note unconstant: go to the DATA-LENS․LENSES∶∶UNCONSTANT
+               DATA-LENS․LENSES∶∶CONSTANT- method. (method)
+     *Direct slots*
+           -- Slot: %v
+               *Initargs*
+                    :value
+               *Readers*
+                    *note unconstant: go to the
+                    DATA-LENS․LENSES∶∶UNCONSTANT generic function.
+                    (generic function)
+ -- Class: identity- ()
+     *Package*
+          *note data-lens.lenses: go to the DATA-LENS․LENSES package.
+     *Source*
+          *note optics.lisp: go to the data-lens/optics․lisp file.
+          (file)
+     *Direct superclasses*
+          standard-object (class)
+     *Direct methods*
+             • *note fmap: go to the DATA-LENS․LENSES∶∶FMAP
+               COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method.
+               (method)
+             • print-object (method)
+             • *note unidentity: go to the DATA-LENS․LENSES∶∶UNIDENTITY
+               DATA-LENS․LENSES∶∶IDENTITY- method. (method)
+     *Direct slots*
+           -- Slot: %v
+               *Initargs*
+                    :value
+               *Readers*
+                    *note unidentity: go to the
+                    DATA-LENS․LENSES∶∶UNIDENTITY generic function.
+                    (generic function)
+
+
+File: data-lens.info,  Node: Indexes,  Prev: Definitions,  Up: Top
+
+Appendix A Indexes
+******************
+
+* Menu:
+
+* Concept index::
+* Function index::
+* Variable index::
+* Data type index::
+
+
+File: data-lens.info,  Node: Concept index,  Next: Function index,  Prev: Indexes,  Up: Indexes
+
+A.1 Concepts
+============
+
+[index]
+* Menu:
+
+* data-lens.asd:                         The data-lens․asd file.
+                                                                (line 6)
+* data-lens/lens.lisp:                   The data-lens/lens․lisp file.
+                                                                (line 6)
+* data-lens/optics.lisp:                 The data-lens/optics․lisp file.
+                                                                (line 6)
+* data-lens/package.lisp:                The data-lens/package․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens.asd:             The data-lens․asd file.
+                                                                (line 6)
+* File, Lisp, data-lens/lens.lisp:       The data-lens/lens․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/optics.lisp:     The data-lens/optics․lisp file.
+                                                                (line 6)
+* File, Lisp, data-lens/package.lisp:    The data-lens/package․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens.asd:              The data-lens․asd file.
+                                                                (line 6)
+* Lisp File, data-lens/lens.lisp:        The data-lens/lens․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/optics.lisp:      The data-lens/optics․lisp file.
+                                                                (line 6)
+* Lisp File, data-lens/package.lisp:     The data-lens/package․lisp file.
+                                                                (line 6)
+
+
+File: data-lens.info,  Node: Function index,  Next: Variable index,  Prev: Concept index,  Up: Indexes
+
+A.2 Functions
+=============
+
+[index]
+* Menu:
+
+* <>1:                                   Exported macros.     (line   6)
+* ==:                                    Exported functions.  (line   6)
+* =>>:                                   Internal functions.  (line   6)
+* •:                                     Exported macros.     (line  37)
+* applicable-when:                       Exported functions.  (line  11)
+* applying:                              Exported macros.     (line  11)
+* catting:                               Exported functions.  (line  16)
+* clone:                                 Internal generic functions.
+                                                              (line   6)
+* clone <1>:                             Internal generic functions.
+                                                              (line  13)
+* collecting:                            Exported functions.  (line  22)
+* combine-matching-lists:                Exported functions.  (line  28)
+* comment:                               Internal macros.     (line   6)
+* compress-runs:                         Exported functions.  (line  33)
+* compressing-runs:                      Exported functions.  (line  38)
+* cons-new:                              Internal functions.  (line  11)
+* cumsum:                                Exported functions.  (line  44)
+* deduping:                              Exported functions.  (line  49)
+* deduplicate:                           Internal functions.  (line  16)
+* defdocumentation:                      Internal macros.     (line  12)
+* defun-ct:                              Exported macros.     (line  16)
+* denest:                                Exported functions.  (line  55)
+* derive:                                Exported functions.  (line  60)
+* dropping:                              Exported functions.  (line  65)
+* eduction:                              Internal functions.  (line  21)
+* element:                               Exported functions.  (line  71)
+* exclude:                               Exported functions.  (line  76)
+* exit-early:                            Exported functions.  (line  81)
+* extract-key:                           Exported generic functions.
+                                                              (line   6)
+* extract-key <1>:                       Exported generic functions.
+                                                              (line  12)
+* extract-key <2>:                       Exported generic functions.
+                                                              (line  13)
+* filler:                                Internal functions.  (line  27)
+* filtering:                             Exported functions.  (line  87)
+* fmap:                                  Internal generic functions.
+                                                              (line  14)
+* fmap <1>:                              Internal generic functions.
+                                                              (line  21)
+* fmap <2>:                              Internal generic functions.
+                                                              (line  22)
+* fmap <3>:                              Internal generic functions.
+                                                              (line  23)
+* fmap <4>:                              Internal generic functions.
+                                                              (line  24)
+* Function, ==:                          Exported functions.  (line   7)
+* Function, =>>:                         Internal functions.  (line   7)
+* Function, applicable-when:             Exported functions.  (line  12)
+* Function, catting:                     Exported functions.  (line  17)
+* Function, collecting:                  Exported functions.  (line  23)
+* Function, combine-matching-lists:      Exported functions.  (line  29)
+* Function, compress-runs:               Exported functions.  (line  34)
+* Function, compressing-runs:            Exported functions.  (line  39)
+* Function, cons-new:                    Internal functions.  (line  12)
+* Function, cumsum:                      Exported functions.  (line  45)
+* Function, deduping:                    Exported functions.  (line  50)
+* Function, deduplicate:                 Internal functions.  (line  17)
+* Function, denest:                      Exported functions.  (line  56)
+* Function, derive:                      Exported functions.  (line  61)
+* Function, dropping:                    Exported functions.  (line  66)
+* Function, eduction:                    Internal functions.  (line  22)
+* Function, element:                     Exported functions.  (line  72)
+* Function, exclude:                     Exported functions.  (line  77)
+* Function, exit-early:                  Exported functions.  (line  82)
+* Function, filler:                      Internal functions.  (line  28)
+* Function, filtering:                   Exported functions.  (line  88)
+* Function, hash-table-select:           Exported functions.  (line  94)
+* Function, include:                     Exported functions.  (line 100)
+* Function, iota:                        Exported functions.  (line 105)
+* Function, juxt:                        Exported functions.  (line 111)
+* Function, key:                         Exported functions.  (line 116)
+* Function, key-transform:               Exported functions.  (line 121)
+* Function, lazy-sequence:               Exported functions.  (line 126)
+* Function, make-alist-history-lens:     Internal functions.  (line  33)
+* Function, make-alist-lens:             Exported functions.  (line 132)
+* Function, make-hash-table-lens:        Exported functions.  (line 139)
+* Function, make-list-lens:              Exported functions.  (line 146)
+* Function, make-plist-lens:             Exported functions.  (line 153)
+* Function, mapcatting:                  Exported functions.  (line 160)
+* Function, mapping:                     Exported functions.  (line 166)
+* Function, matching-list-reducer:       Internal functions.  (line  40)
+* Function, maximizing:                  Exported functions.  (line 172)
+* Function, mv-filtering:                Exported functions.  (line 177)
+* Function, mv-mapping:                  Exported functions.  (line 183)
+* Function, mv-selecting:                Exported functions.  (line 189)
+* Function, of-length:                   Exported functions.  (line 195)
+* Function, of-max-length:               Exported functions.  (line 200)
+* Function, of-min-length:               Exported functions.  (line 205)
+* Function, on:                          Exported functions.  (line 210)
+* Function, over:                        Exported functions.  (line 215)
+* Function, over <1>:                    Exported functions.  (line 220)
+* Function, pick:                        Exported functions.  (line 255)
+* Function, regex-match:                 Exported functions.  (line 260)
+* Function, repeating*:                  Exported functions.  (line 265)
+* Function, seq:                         Internal functions.  (line  45)
+* Function, set:                         Exported functions.  (line 271)
+* Function, slice:                       Exported functions.  (line 279)
+* Function, sorted:                      Exported functions.  (line 284)
+* Function, splice-elt:                  Exported functions.  (line 289)
+* Function, splitting:                   Exported functions.  (line 294)
+* Function, suffixp:                     Exported functions.  (line 300)
+* Function, taking:                      Exported functions.  (line 305)
+* Function, transduce:                   Exported functions.  (line 311)
+* Function, transform-elt:               Exported functions.  (line 317)
+* Function, transform-head:              Exported functions.  (line 322)
+* Function, transform-tail:              Exported functions.  (line 327)
+* Function, update:                      Internal functions.  (line  51)
+* Function, view:                        Exported functions.  (line 332)
+* Function, wrap-constant:               Internal functions.  (line  56)
+* Function, wrap-identity:               Internal functions.  (line  62)
+* Function, zipping:                     Exported functions.  (line 339)
+* functionalize:                         Exported generic functions.
+                                                              (line  14)
+* functionalize <1>:                     Exported generic functions.
+                                                              (line  20)
+* functionalize <2>:                     Exported generic functions.
+                                                              (line  21)
+* functionalize <3>:                     Exported generic functions.
+                                                              (line  22)
+* functionalize <4>:                     Exported generic functions.
+                                                              (line  23)
+* Generic Function, clone:               Internal generic functions.
+                                                              (line   7)
+* Generic Function, extract-key:         Exported generic functions.
+                                                              (line   7)
+* Generic Function, fmap:                Internal generic functions.
+                                                              (line  15)
+* Generic Function, functionalize:       Exported generic functions.
+                                                              (line  15)
+* Generic Function, init:                Exported generic functions.
+                                                              (line  25)
+* Generic Function, next:                Internal generic functions.
+                                                              (line  26)
+* Generic Function, reduce-generic:      Exported generic functions.
+                                                              (line  41)
+* Generic Function, stepper:             Exported generic functions.
+                                                              (line  57)
+* Generic Function, unconstant:          Internal generic functions.
+                                                              (line  35)
+* Generic Function, unidentity:          Internal generic functions.
+                                                              (line  44)
+* Generic Function, unwrap:              Exported generic functions.
+                                                              (line  73)
+* hash-table-select:                     Exported functions.  (line  93)
+* include:                               Exported functions.  (line  99)
+* init:                                  Exported generic functions.
+                                                              (line  24)
+* init <1>:                              Exported generic functions.
+                                                              (line  31)
+* init <2>:                              Exported generic functions.
+                                                              (line  34)
+* init <3>:                              Exported generic functions.
+                                                              (line  37)
+* iota:                                  Exported functions.  (line 104)
+* juxt:                                  Exported functions.  (line 110)
+* key:                                   Exported functions.  (line 115)
+* key-transform:                         Exported functions.  (line 120)
+* lazy-sequence:                         Exported functions.  (line 125)
+* let-fn:                                Exported macros.     (line  21)
+* Macro, <>1:                            Exported macros.     (line   7)
+* Macro, applying:                       Exported macros.     (line  12)
+* Macro, comment:                        Internal macros.     (line   7)
+* Macro, defdocumentation:               Internal macros.     (line  13)
+* Macro, defun-ct:                       Exported macros.     (line  17)
+* Macro, let-fn:                         Exported macros.     (line  22)
+* Macro, repeating:                      Exported macros.     (line  27)
+* Macro, shortcut:                       Exported macros.     (line  33)
+* Macro, transducer-lambda:              Internal macros.     (line  20)
+* Macro, updatef:                        Internal macros.     (line  26)
+* Macro, •:                              Exported macros.     (line  38)
+* make-alist-history-lens:               Internal functions.  (line  32)
+* make-alist-lens:                       Exported functions.  (line 131)
+* make-hash-table-lens:                  Exported functions.  (line 138)
+* make-list-lens:                        Exported functions.  (line 145)
+* make-plist-lens:                       Exported functions.  (line 152)
+* mapcatting:                            Exported functions.  (line 159)
+* mapping:                               Exported functions.  (line 165)
+* matching-list-reducer:                 Internal functions.  (line  39)
+* maximizing:                            Exported functions.  (line 171)
+* Method, clone:                         Internal generic functions.
+                                                              (line  14)
+* Method, extract-key:                   Exported generic functions.
+                                                              (line  13)
+* Method, extract-key <1>:               Exported generic functions.
+                                                              (line  14)
+* Method, fmap:                          Internal generic functions.
+                                                              (line  22)
+* Method, fmap <1>:                      Internal generic functions.
+                                                              (line  23)
+* Method, fmap <2>:                      Internal generic functions.
+                                                              (line  24)
+* Method, fmap <3>:                      Internal generic functions.
+                                                              (line  25)
+* Method, functionalize:                 Exported generic functions.
+                                                              (line  21)
+* Method, functionalize <1>:             Exported generic functions.
+                                                              (line  22)
+* Method, functionalize <2>:             Exported generic functions.
+                                                              (line  23)
+* Method, functionalize <3>:             Exported generic functions.
+                                                              (line  24)
+* Method, init:                          Exported generic functions.
+                                                              (line  32)
+* Method, init <1>:                      Exported generic functions.
+                                                              (line  35)
+* Method, init <2>:                      Exported generic functions.
+                                                              (line  38)
+* Method, next:                          Internal generic functions.
+                                                              (line  31)
+* Method, reduce-generic:                Exported generic functions.
+                                                              (line  49)
+* Method, reduce-generic <1>:            Exported generic functions.
+                                                              (line  52)
+* Method, reduce-generic <2>:            Exported generic functions.
+                                                              (line  53)
+* Method, reduce-generic <3>:            Exported generic functions.
+                                                              (line  54)
+* Method, reduce-generic <4>:            Exported generic functions.
+                                                              (line  56)
+* Method, stepper:                       Exported generic functions.
+                                                              (line  64)
+* Method, stepper <1>:                   Exported generic functions.
+                                                              (line  67)
+* Method, stepper <2>:                   Exported generic functions.
+                                                              (line  70)
+* Method, unconstant:                    Internal generic functions.
+                                                              (line  39)
+* Method, unidentity:                    Internal generic functions.
+                                                              (line  48)
+* Method, unwrap:                        Exported generic functions.
+                                                              (line  80)
+* Method, unwrap <1>:                    Exported generic functions.
+                                                              (line  83)
+* mv-filtering:                          Exported functions.  (line 176)
+* mv-mapping:                            Exported functions.  (line 182)
+* mv-selecting:                          Exported functions.  (line 188)
+* next:                                  Internal generic functions.
+                                                              (line  25)
+* next <1>:                              Internal generic functions.
+                                                              (line  30)
+* of-length:                             Exported functions.  (line 194)
+* of-max-length:                         Exported functions.  (line 199)
+* of-min-length:                         Exported functions.  (line 204)
+* on:                                    Exported functions.  (line 209)
+* over:                                  Exported functions.  (line 214)
+* over <1>:                              Exported functions.  (line 219)
+* pick:                                  Exported functions.  (line 254)
+* reduce-generic:                        Exported generic functions.
+                                                              (line  40)
+* reduce-generic <1>:                    Exported generic functions.
+                                                              (line  47)
+* reduce-generic <2>:                    Exported generic functions.
+                                                              (line  51)
+* reduce-generic <3>:                    Exported generic functions.
+                                                              (line  52)
+* reduce-generic <4>:                    Exported generic functions.
+                                                              (line  53)
+* reduce-generic <5>:                    Exported generic functions.
+                                                              (line  54)
+* regex-match:                           Exported functions.  (line 259)
+* repeating:                             Exported macros.     (line  26)
+* repeating*:                            Exported functions.  (line 264)
+* seq:                                   Internal functions.  (line  44)
+* set:                                   Exported functions.  (line 270)
+* shortcut:                              Exported macros.     (line  32)
+* slice:                                 Exported functions.  (line 278)
+* sorted:                                Exported functions.  (line 283)
+* splice-elt:                            Exported functions.  (line 288)
+* splitting:                             Exported functions.  (line 293)
+* stepper:                               Exported generic functions.
+                                                              (line  56)
+* stepper <1>:                           Exported generic functions.
+                                                              (line  63)
+* stepper <2>:                           Exported generic functions.
+                                                              (line  66)
+* stepper <3>:                           Exported generic functions.
+                                                              (line  69)
+* suffixp:                               Exported functions.  (line 299)
+* taking:                                Exported functions.  (line 304)
+* transduce:                             Exported functions.  (line 310)
+* transducer-lambda:                     Internal macros.     (line  18)
+* transform-elt:                         Exported functions.  (line 316)
+* transform-head:                        Exported functions.  (line 321)
+* transform-tail:                        Exported functions.  (line 326)
+* unconstant:                            Internal generic functions.
+                                                              (line  34)
+* unconstant <1>:                        Internal generic functions.
+                                                              (line  38)
+* unidentity:                            Internal generic functions.
+                                                              (line  43)
+* unidentity <1>:                        Internal generic functions.
+                                                              (line  47)
+* unwrap:                                Exported generic functions.
+                                                              (line  72)
+* unwrap <1>:                            Exported generic functions.
+                                                              (line  79)
+* unwrap <2>:                            Exported generic functions.
+                                                              (line  82)
+* update:                                Internal functions.  (line  50)
+* updatef:                               Internal macros.     (line  25)
+* view:                                  Exported functions.  (line 331)
+* wrap-constant:                         Internal functions.  (line  55)
+* wrap-identity:                         Internal functions.  (line  61)
+* zipping:                               Exported functions.  (line 338)
+
+
+File: data-lens.info,  Node: Variable index,  Next: Data type index,  Prev: Function index,  Up: Indexes
+
+A.3 Variables
+=============
+
+[index]
+* Menu:
+
+* %next:                                 Exported classes.     (line 22)
+* %v:                                    Internal classes.     (line 22)
+* %v <1>:                                Internal classes.     (line 45)
+* Slot, %next:                           Exported classes.     (line 23)
+* Slot, %v:                              Internal classes.     (line 23)
+* Slot, %v <1>:                          Internal classes.     (line 46)
+
+
+File: data-lens.info,  Node: Data type index,  Prev: Variable index,  Up: Indexes
+
+A.4 Data types
+==============
+
+[index]
+* Menu:
+
+* Class, constant-:                      Internal classes.     (line  7)
+* Class, identity-:                      Internal classes.     (line 30)
+* Class, lazy-sequence:                  Exported classes.     (line  7)
+* constant-:                             Internal classes.     (line  6)
+* data-lens:                             The data-lens system. (line  6)
+* data-lens <1>:                         The data-lens package.
+                                                               (line  6)
+* data-lens.lenses:                      The data-lens․lenses package.
+                                                               (line  6)
+* data-lens.package:                     The data-lens․package package.
+                                                               (line  6)
+* data-lens.transducers:                 The data-lens․transducers package.
+                                                               (line  6)
+* data-lens.transducers.internals:       The data-lens․transducers․internals package.
+                                                               (line  6)
+* identity-:                             Internal classes.     (line 29)
+* lazy-sequence:                         Exported classes.     (line  6)
+* Package, data-lens:                    The data-lens package.
+                                                               (line  6)
+* Package, data-lens.lenses:             The data-lens․lenses package.
+                                                               (line  6)
+* Package, data-lens.package:            The data-lens․package package.
+                                                               (line  6)
+* Package, data-lens.transducers:        The data-lens․transducers package.
+                                                               (line  6)
+* Package, data-lens.transducers.internals: The data-lens․transducers․internals package.
+                                                               (line  6)
+* System, data-lens:                     The data-lens system. (line  6)
+
+
+
+Tag Table:
+Node: Top217
+Node: Systems720
+Node: The data-lens system922
+Ref: go to the data-lens system1034
+Node: Files1654
+Node: Lisp files1866
+Node: The data-lens․asd file2218
+Ref: go to the data-lens․asd file2394
+Node: The data-lens/package․lisp file2494
+Ref: go to the data-lens/package․lisp file2710
+Node: The data-lens/optics․lisp file3237
+Ref: go to the data-lens/optics․lisp file3457
+Node: The data-lens/lens․lisp file6152
+Ref: go to the data-lens/lens․lisp file6326
+Node: Packages11245
+Node: The data-lens package11731
+Ref: go to the DATA-LENS package11890
+Node: The data-lens․transducers package16741
+Ref: go to the DATA-LENS․TRANSDUCERS package16947
+Node: The data-lens․package package19876
+Ref: go to the DATA-LENS․PACKAGE package20083
+Node: The data-lens․lenses package20194
+Ref: go to the DATA-LENS․LENSES package20411
+Node: The data-lens․transducers․internals package23278
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS package23485
+Node: Definitions27068
+Node: Exported definitions27338
+Node: Exported macros27614
+Ref: go to the DATA-LENS∶∶<>1 macro27798
+Ref: go to the DATA-LENS∶∶APPLYING macro27990
+Ref: go to the DATA-LENS∶∶DEFUN-CT macro28196
+Ref: go to the DATA-LENS∶∶LET-FN macro28399
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro28579
+Ref: go to the DATA-LENS∶∶SHORTCUT macro28780
+Ref: go to the DATA-LENS∶∶• macro28963
+Node: Exported functions29121
+Ref: go to the DATA-LENS∶∶== function29325
+Ref: go to the DATA-LENS∶∶APPLICABLE-WHEN function29521
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶CATTING function29703
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function29886
+Ref: go to the DATA-LENS∶∶COMBINE-MATCHING-LISTS function30099
+Ref: go to the DATA-LENS∶∶COMPRESS-RUNS function30308
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function30515
+Ref: go to the DATA-LENS∶∶CUMSUM function30714
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function30909
+Ref: go to the DATA-LENS∶∶DENEST function31095
+Ref: go to the DATA-LENS∶∶DERIVE function31291
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function31473
+Ref: go to the DATA-LENS∶∶ELEMENT function31647
+Ref: go to the DATA-LENS∶∶EXCLUDE function31831
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function32017
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function32239
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function32430
+Ref: go to the DATA-LENS∶∶INCLUDE function32605
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶IOTA function32803
+Ref: go to the DATA-LENS∶∶JUXT function32985
+Ref: go to the DATA-LENS∶∶KEY function33164
+Ref: go to the DATA-LENS∶∶KEY-TRANSFORM function33369
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function33559
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function33743
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-HASH-TABLE-LENS function34030
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-LIST-LENS function34318
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-PLIST-LENS function34575
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function34852
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function35042
+Ref: go to the DATA-LENS∶∶MAXIMIZING function35232
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function35436
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function35629
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function35824
+Ref: go to the DATA-LENS∶∶OF-LENGTH function36000
+Ref: go to the DATA-LENS∶∶OF-MAX-LENGTH function36189
+Ref: go to the DATA-LENS∶∶OF-MIN-LENGTH function36378
+Ref: go to the DATA-LENS∶∶ON function36560
+Ref: go to the DATA-LENS∶∶OVER function36757
+Ref: go to the DATA-LENS․LENSES∶∶OVER function36945
+Ref: go to the DATA-LENS∶∶PICK function38383
+Ref: go to the DATA-LENS∶∶REGEX-MATCH function38572
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function38767
+Ref: go to the DATA-LENS․LENSES∶∶SET function38946
+Ref: go to the DATA-LENS∶∶SLICE function39303
+Ref: go to the DATA-LENS∶∶SORTED function39509
+Ref: go to the DATA-LENS∶∶SPLICE-ELT function39699
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING function39896
+Ref: go to the DATA-LENS∶∶SUFFIXP function40083
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶TAKING function40263
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function40448
+Ref: go to the DATA-LENS∶∶TRANSFORM-ELT function40662
+Ref: go to the DATA-LENS∶∶TRANSFORM-HEAD function40852
+Ref: go to the DATA-LENS∶∶TRANSFORM-TAIL function41042
+Ref: go to the DATA-LENS․LENSES∶∶VIEW function41227
+Ref: go to the DATA-LENS∶∶ZIPPING function41518
+Node: Exported generic functions41676
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY generic function41905
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶T method42132
+Ref: go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶LIST COMMON-LISP∶∶T method42181
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE generic function42220
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method42444
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method42492
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method42540
+Ref: go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method42590
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT generic function42624
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method42868
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method42982
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method43100
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function43212
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method43503
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method43639
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method43710
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method43770
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method43865
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function43902
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method44149
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method44266
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method44387
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function44488
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method44738
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method44839
+Node: Exported classes44840
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class45008
+Node: Internal definitions45901
+Node: Internal macros46157
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro46345
+Ref: go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro46542
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro46813
+Ref: go to the DATA-LENS∶∶UPDATEF macro47001
+Node: Internal functions47159
+Ref: go to the DATA-LENS∶∶=>> function47357
+Ref: go to the DATA-LENS∶∶CONS-NEW function47551
+Ref: go to the DATA-LENS∶∶DEDUPLICATE function47749
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function47936
+Ref: go to the DATA-LENS∶∶FILLER function48132
+Ref: go to the DATA-LENS․LENSES∶∶MAKE-ALIST-HISTORY-LENS function48331
+Ref: go to the DATA-LENS∶∶MATCHING-LIST-REDUCER function48629
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶SEQ function48808
+Ref: go to the DATA-LENS∶∶UPDATE function48998
+Ref: go to the DATA-LENS․LENSES∶∶WRAP-CONSTANT function49185
+Ref: go to the DATA-LENS․LENSES∶∶WRAP-IDENTITY function49402
+Node: Internal generic functions49590
+Ref: go to the DATA-LENS․LENSES∶∶CLONE generic function49833
+Ref: go to the DATA-LENS․LENSES∶∶CLONE COMMON-LISP∶∶T AROUND method50098
+Ref: go to the DATA-LENS․LENSES∶∶FMAP generic function50139
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶IDENTITY- method50394
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T DATA-LENS․LENSES∶∶CONSTANT- method50447
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶LIST method50495
+Ref: go to the DATA-LENS․LENSES∶∶FMAP COMMON-LISP∶∶T COMMON-LISP∶∶VECTOR method50545
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function50579
+Ref: go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method50758
+Ref: go to the DATA-LENS․LENSES∶∶UNCONSTANT generic function50914
+Ref: go to the DATA-LENS․LENSES∶∶UNCONSTANT DATA-LENS․LENSES∶∶CONSTANT- method51071
+Ref: go to the DATA-LENS․LENSES∶∶UNIDENTITY generic function51294
+Ref: go to the DATA-LENS․LENSES∶∶UNIDENTITY DATA-LENS․LENSES∶∶IDENTITY- method51451
+Node: Internal classes51635
+Ref: go to the DATA-LENS․LENSES∶∶CONSTANT- class51799
+Ref: go to the DATA-LENS․LENSES∶∶IDENTITY- class52727
+Node: Indexes53632
+Node: Concept index53827
+Node: Function index55724
+Node: Variable index77919
+Node: Data type index78516
+
+End Tag Table
+
+
+Local Variables:
+coding: utf-8
+End:
diff --git a/docs/data-lens.texi b/docs/data-lens.texi
index 396cedf..5e9dd22 100644
--- a/docs/data-lens.texi
+++ b/docs/data-lens.texi
@@ -2,7 +2,7 @@
 
 @c data-lens.texi --- Reference manual
 
-@c Copyright (C) 2020 Edward Langley
+@c Copyright (C) 2021 Edward Langley
 
 @c This file is part of data-lens.
 
@@ -11,7 +11,7 @@
 @c Commentary:
 
 @c Generated automatically by Declt version 3.0 "Montgomery Scott"
-@c on Mon Oct 12 20:22:22 2020 GMT-8.
+@c on Wed Jan 06 14:19:05 2021 GMT-8.
 
 
 @c ====================================================================
@@ -272,13 +272,13 @@ The data-lens Reference Manual.
 @c ====================================================================
 @titlepage
 @title The data-lens Reference Manual
-@subtitle Utilities for building data transormations from composable functions@comma{} modeled on lenses and transducers
+@subtitle Utilities for building data transformations from composable functions@comma{} modeled on lenses and transducers
 
 @author Edward Langley <@email{el-cl@atchar{}elangley.org}>
 
 @page
 @quotation
-This manual was generated automatically by Declt 3.0 "Montgomery Scott" on Mon Oct 12 20:22:22 2020 GMT-8.
+This manual was generated automatically by Declt 3.0 "Montgomery Scott" on Wed Jan 06 14:19:05 2021 GMT-8.
 @end quotation
 @end titlepage
 
@@ -299,7 +299,7 @@ This manual was generated automatically by Declt 3.0 "Montgomery Scott" on Mon O
 @top The data-lens Reference Manual
 This is the data-lens Reference Manual,
 generated automatically by Declt version 3.0 "Montgomery Scott"
-on Mon Oct 12 20:22:22 2020 GMT-8.
+on Wed Jan 06 14:19:05 2021 GMT-8.
 
 @menu
 * Systems:: The systems documentation
@@ -337,7 +337,7 @@ Edward Langley <@email{el-cl@atchar{}elangley.org}>
 @item License
 MIT
 @item Description
-Utilities for building data transormations from composable functions@comma{} modeled on lenses and transducers
+Utilities for building data transformations from composable functions@comma{} modeled on lenses and transducers
 @item Dependencies
 @itemize @bullet
 @item
@@ -412,9 +412,13 @@ components trees.
 @item
 @ref{go to the DATA-LENS package, , @t{data-lens}}
 @item
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item
 @ref{go to the DATA-LENS․PACKAGE package, , @t{data-lens.package}}
 @item
 @ref{go to the DATA-LENS․LENSES package, , @t{data-lens.lenses}}
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
 @end itemize
 @end table
 
@@ -523,6 +527,16 @@ components trees.
 @item
 @ref{go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶LIST COMMON-LISP∶∶T method, , @t{extract-key}} (method)
 @item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE generic function, , @t{functionalize}} (generic function)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method, , @t{functionalize}} (method)
+@item
 @ref{go to the DATA-LENS∶∶INCLUDE function, , @t{include}} (function)
 @item
 @ref{go to the DATA-LENS∶∶JUXT function, , @t{juxt}} (function)
@@ -557,6 +571,8 @@ components trees.
 @item
 @ref{go to the DATA-LENS∶∶SPLICE-ELT function, , @t{splice-elt}} (function)
 @item
+@ref{go to the DATA-LENS∶∶SUFFIXP function, , @t{suffixp}} (function)
+@item
 @ref{go to the DATA-LENS∶∶TRANSFORM-ELT function, , @t{transform-elt}} (function)
 @item
 @ref{go to the DATA-LENS∶∶TRANSFORM-HEAD function, , @t{transform-head}} (function)
@@ -597,15 +613,17 @@ Packages are listed by definition order.
 
 @menu
 * The data-lens package::
+* The data-lens.transducers package: The data-lens․transducers package.
 * The data-lens.package package: The data-lens․package package.
 * The data-lens.lenses package: The data-lens․lenses package.
+* The data-lens.transducers.internals package: The data-lens․transducers․internals package.
 @end menu
 
 
 @c ---------------------
 @c The data-lens package
 @c ---------------------
-@node The data-lens package, The data-lens․package package, Packages, Packages
+@node The data-lens package, The data-lens․transducers package, Packages, Packages
 @section @t{data-lens}
 @anchor{go to the DATA-LENS package}@c
 @packageindex{data-lens}@c
@@ -647,6 +665,16 @@ Packages are listed by definition order.
 @item
 @ref{go to the DATA-LENS∶∶EXTRACT-KEY COMMON-LISP∶∶LIST COMMON-LISP∶∶T method, , @t{extract-key}} (method)
 @item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE generic function, , @t{functionalize}} (generic function)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method, , @t{functionalize}} (method)
+@item
+@ref{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method, , @t{functionalize}} (method)
+@item
 @ref{go to the DATA-LENS∶∶INCLUDE function, , @t{include}} (function)
 @item
 @ref{go to the DATA-LENS∶∶JUXT function, , @t{juxt}} (function)
@@ -681,6 +709,8 @@ Packages are listed by definition order.
 @item
 @ref{go to the DATA-LENS∶∶SPLICE-ELT function, , @t{splice-elt}} (function)
 @item
+@ref{go to the DATA-LENS∶∶SUFFIXP function, , @t{suffixp}} (function)
+@item
 @ref{go to the DATA-LENS∶∶TRANSFORM-ELT function, , @t{transform-elt}} (function)
 @item
 @ref{go to the DATA-LENS∶∶TRANSFORM-HEAD function, , @t{transform-head}} (function)
@@ -711,10 +741,81 @@ Packages are listed by definition order.
 @end table
 
 
+@c ---------------------------------
+@c The data-lens.transducers package
+@c ---------------------------------
+@node The data-lens․transducers package, The data-lens․package package, The data-lens package, Packages
+@section @t{data-lens.transducers}
+@anchor{go to the DATA-LENS․TRANSDUCERS package}@c
+@packageindex{data-lens.transducers}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/package․lisp file, , @t{package.lisp}} (file)
+@item Use List
+@t{common-lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶CATTING function, , @t{catting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function, , @t{collecting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function, , @t{compressing-runs}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function, , @t{deduping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function, , @t{dropping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function, , @t{filtering}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function, , @t{hash-table-select}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶IOTA function, , @t{iota}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function, , @t{lazy-sequence}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class, , @t{lazy-sequence}} (class)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function, , @t{mapcatting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function, , @t{mapping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function, , @t{mv-filtering}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function, , @t{mv-mapping}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function, , @t{mv-selecting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro, , @t{repeating}} (macro)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function, , @t{repeating*}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING function, , @t{splitting}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶TAKING function, , @t{taking}} (function)
+@end itemize
+@item Internal Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro, , @t{comment}} (macro)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function, , @t{eduction}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function, , @t{next}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method, , @t{next}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶SEQ function, , @t{seq}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro, , @t{transducer-lambda}} (macro)
+@end itemize
+@end table
+
+
 @c -----------------------------
 @c The data-lens.package package
 @c -----------------------------
-@node The data-lens․package package, The data-lens․lenses package, The data-lens package, Packages
+@node The data-lens․package package, The data-lens․lenses package, The data-lens․transducers package, Packages
 @section @t{data-lens.package}
 @anchor{go to the DATA-LENS․PACKAGE package}@c
 @packageindex{data-lens.package}@c
@@ -729,7 +830,7 @@ Packages are listed by definition order.
 @c ----------------------------
 @c The data-lens.lenses package
 @c ----------------------------
-@node The data-lens․lenses package, , The data-lens․package package, Packages
+@node The data-lens․lenses package, The data-lens․transducers․internals package, The data-lens․package package, Packages
 @section @t{data-lens.lenses}
 @anchor{go to the DATA-LENS․LENSES package}@c
 @packageindex{data-lens.lenses}@c
@@ -793,6 +894,64 @@ Packages are listed by definition order.
 @end table
 
 
+@c -------------------------------------------
+@c The data-lens.transducers.internals package
+@c -------------------------------------------
+@node The data-lens․transducers․internals package, , The data-lens․lenses package, Packages
+@section @t{data-lens.transducers.internals}
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS package}@c
+@packageindex{data-lens.transducers.internals}@c
+@table @strong
+@item Source
+@ref{go to the data-lens/package․lisp file, , @t{package.lisp}} (file)
+@item Use List
+@t{common-lisp}
+@item Exported Definitions
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function, , @t{exit-early}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT generic function, , @t{init}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method, , @t{init}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function, , @t{reduce-generic}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function, , @t{stepper}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method, , @t{stepper}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function, , @t{transduce}} (function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function, , @t{unwrap}} (generic function)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method, , @t{unwrap}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method, , @t{unwrap}} (method)
+@end itemize
+@item Internal Definitions
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro, , @t{defdocumentation}} (macro)
+@end table
+
+
 
 @c ====================================================================
 @c Definitions
@@ -817,6 +976,7 @@ lexicographic order.
 * Exported macros::
 * Exported functions::
 * Exported generic functions::
+* Exported classes::
 @end menu
 
 @node Exported macros, Exported functions, Exported definitions, Exported definitions
@@ -861,6 +1021,16 @@ lexicographic order.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Macro} {repeating} V
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro}@c
+@macrosubindex{repeating}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{lazy-sequence.lisp}
+@end table
+@end deffn
 @deffn {Macro} {shortcut} NAME FUNCTION &body BOUND-ARGS
 @anchor{go to the DATA-LENS∶∶SHORTCUT macro}@c
 @macrosubindex{shortcut}@c
@@ -904,6 +1074,26 @@ lexicographic order.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {catting} ()
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶CATTING function}@c
+@functionsubindex{catting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Function} {collecting} COLLECTOR
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function}@c
+@functionsubindex{collecting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {combine-matching-lists} &key TEST &allow-other-keys
 @anchor{go to the DATA-LENS∶∶COMBINE-MATCHING-LISTS function}@c
 @functionsubindex{combine-matching-lists}@c
@@ -924,6 +1114,16 @@ lexicographic order.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {compressing-runs} &key TEST COMBINER
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function}@c
+@functionsubindex{compressing-runs}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {cumsum} &key ADD-FUN KEY COMBINE ZERO
 @anchor{go to the DATA-LENS∶∶CUMSUM function}@c
 @functionsubindex{cumsum}@c
@@ -934,6 +1134,16 @@ lexicographic order.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {deduping} &optional TEST
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function}@c
+@functionsubindex{deduping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {denest} &key RESULT-TYPE
 @anchor{go to the DATA-LENS∶∶DENEST function}@c
 @functionsubindex{denest}@c
@@ -954,6 +1164,16 @@ lexicographic order.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {dropping} N
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function}@c
+@functionsubindex{dropping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {element} NUM
 @anchor{go to the DATA-LENS∶∶ELEMENT function}@c
 @functionsubindex{element}@c
@@ -974,6 +1194,36 @@ lexicographic order.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {exit-early} ACC
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶EXIT-EARLY function}@c
+@functionsubindex{exit-early}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@t{transducer-protocol.lisp}
+@end table
+@end deffn
+@deffn {Function} {filtering} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function}@c
+@functionsubindex{filtering}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Function} {hash-table-select} HASH-TABLE
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function}@c
+@functionsubindex{hash-table-select}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {include} PRED
 @anchor{go to the DATA-LENS∶∶INCLUDE function}@c
 @functionsubindex{include}@c
@@ -984,6 +1234,16 @@ lexicographic order.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {iota} &key START STEP COUNT
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶IOTA function}@c
+@functionsubindex{iota}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{lazy-sequence.lisp}
+@end table
+@end deffn
 @deffn {Function} {juxt} FUN1 &rest R
 @anchor{go to the DATA-LENS∶∶JUXT function}@c
 @functionsubindex{juxt}@c
@@ -1014,6 +1274,16 @@ lexicographic order.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {lazy-sequence} NEXT
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function}@c
+@functionsubindex{lazy-sequence}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{lazy-sequence.lisp}
+@end table
+@end deffn
 @deffn {Function} {make-alist-lens} KEY
 @anchor{go to the DATA-LENS․LENSES∶∶MAKE-ALIST-LENS function}@c
 @functionsubindex{make-alist-lens}@c
@@ -1058,6 +1328,26 @@ A lens for updating a plist@comma{} preserving previous values
 @ref{go to the data-lens/optics․lisp file, , @t{optics.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {mapcatting} FUN
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function}@c
+@functionsubindex{mapcatting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Function} {mapping} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function}@c
+@functionsubindex{mapping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {maximizing} RELATION MEASURE
 @anchor{go to the DATA-LENS∶∶MAXIMIZING function}@c
 @functionsubindex{maximizing}@c
@@ -1068,6 +1358,36 @@ A lens for updating a plist@comma{} preserving previous values
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {mv-filtering} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function}@c
+@functionsubindex{mv-filtering}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Function} {mv-mapping} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function}@c
+@functionsubindex{mv-mapping}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Function} {mv-selecting} FUNCTION &rest ARGS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function}@c
+@functionsubindex{mv-selecting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {of-length} LEN
 @anchor{go to the DATA-LENS∶∶OF-LENGTH function}@c
 @functionsubindex{of-length}@c
@@ -1176,6 +1496,16 @@ lambda that actually pulls a value out of a record later.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {repeating*} V &key COUNT
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function}@c
+@functionsubindex{repeating*}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{lazy-sequence.lisp}
+@end table
+@end deffn
 @deffn {Function} {set} LENS V REC
 @anchor{go to the DATA-LENS․LENSES∶∶SET function}@c
 @functionsubindex{set}@c
@@ -1218,6 +1548,46 @@ contain the new value at the location focused by the lens.
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {splitting} &rest FUNCTIONS
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶SPLITTING function}@c
+@functionsubindex{splitting}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Function} {suffixp} SUFFIX &key TEST
+@anchor{go to the DATA-LENS∶∶SUFFIXP function}@c
+@functionsubindex{suffixp}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@end table
+@end deffn
+@deffn {Function} {taking} N
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶TAKING function}@c
+@functionsubindex{taking}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Function} {transduce} XF BUILD SEQ
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function}@c
+@functionsubindex{transduce}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@t{transducer-protocol.lisp}
+@end table
+@end deffn
 @deffn {Function} {transform-elt} ELT FUN
 @anchor{go to the DATA-LENS∶∶TRANSFORM-ELT function}@c
 @functionsubindex{transform-elt}@c
@@ -1270,7 +1640,7 @@ Given a lens and a rec@comma{} return the focused value
 @end table
 @end deffn
 
-@node Exported generic functions, , Exported functions, Exported definitions
+@node Exported generic functions, Exported classes, Exported functions, Exported definitions
 @subsection Generic functions
 @deffn {Generic Function} {extract-key} MAP KEY
 @anchor{go to the DATA-LENS∶∶EXTRACT-KEY generic function}@c
@@ -1291,6 +1661,193 @@ Given a lens and a rec@comma{} return the focused value
 @end deffn
 @end table
 @end deffn
+@deffn {Generic Function} {functionalize} IT
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE generic function}@c
+@genericsubindex{functionalize}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS package, , @t{data-lens}}
+@item Source
+@ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
+@item Methods
+@deffn {Method} {functionalize} (IT @t{hash-table})
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶HASH-TABLE method}@c
+@methodsubindex{functionalize}@c
+@end deffn
+@deffn {Method} {functionalize} (IT @t{vector})
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶VECTOR method}@c
+@methodsubindex{functionalize}@c
+@end deffn
+@deffn {Method} {functionalize} (IT @t{symbol})
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶SYMBOL method}@c
+@methodsubindex{functionalize}@c
+@end deffn
+@deffn {Method} {functionalize} (IT @t{function})
+@anchor{go to the DATA-LENS∶∶FUNCTIONALIZE COMMON-LISP∶∶FUNCTION method}@c
+@methodsubindex{functionalize}@c
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {init} CLIENT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT generic function}@c
+@genericsubindex{init}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@t{transducer-protocol.lisp}
+@item Methods
+@deffn {Method} {init} (IT @t{(eql list-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method}@c
+@methodsubindex{init}@c
+@table @strong
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Method} {init} (IT @t{(eql vector-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method}@c
+@methodsubindex{init}@c
+@table @strong
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Method} {init} (IT @t{(eql hash-table-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶INIT ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method}@c
+@methodsubindex{init}@c
+@table @strong
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {reduce-generic} SEQ FUNC INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function}@c
+@genericsubindex{reduce-generic}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@t{transducer-protocol.lisp}
+@item Methods
+@deffn {Method} {reduce-generic} (SEQ @t{lazy-sequence}) (FUNC @t{function}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@table @strong
+@item Source
+@t{lazy-sequence.lisp}
+@end table
+@end deffn
+@deffn {Method} {reduce-generic} (SEQ @t{sequence}) (FUNC @t{function}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@end deffn
+@deffn {Method} {reduce-generic} (SEQ @t{sequence}) (FUNC @t{symbol}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶SEQUENCE COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@end deffn
+@deffn {Method} {reduce-generic} SEQ (FUNC @t{symbol}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@end deffn
+@deffn {Method} {reduce-generic} (SEQ @t{hash-table}) (FUNC @t{function}) INIT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶HASH-TABLE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method}@c
+@methodsubindex{reduce-generic}@c
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {stepper} CLIENT
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function}@c
+@genericsubindex{stepper}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@t{transducer-protocol.lisp}
+@item Methods
+@deffn {Method} {stepper} (IT @t{(eql list-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method}@c
+@methodsubindex{stepper}@c
+@table @strong
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Method} {stepper} (IT @t{(eql vector-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method}@c
+@methodsubindex{stepper}@c
+@table @strong
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Method} {stepper} (IT @t{(eql hash-table-builder)})
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method}@c
+@methodsubindex{stepper}@c
+@table @strong
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@end table
+@end deffn
+@deffn {Generic Function} {unwrap} CLIENT OBJ
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function}@c
+@genericsubindex{unwrap}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@t{transducer-protocol.lisp}
+@item Methods
+@deffn {Method} {unwrap} (IT @t{(eql list-builder)}) OBJ
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method}@c
+@methodsubindex{unwrap}@c
+@table @strong
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Method} {unwrap} CLIENT OBJ
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method}@c
+@methodsubindex{unwrap}@c
+@end deffn
+@end table
+@end deffn
+
+@node Exported classes, , Exported generic functions, Exported definitions
+@subsection Classes
+@deftp {Class} {lazy-sequence} ()
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class}@c
+@classsubindex{lazy-sequence}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{lazy-sequence.lisp}
+@item Direct superclasses
+@t{standard-object} (class)
+@item Direct methods
+@itemize @bullet
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method, , @t{reduce-generic}} (method)
+@item
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method, , @t{next}} (method)
+@end itemize
+@item Direct slots
+@defvr {Slot} %next
+@slotsubindex{%next}@c
+@table @strong
+@item Initargs
+@t{:next}
+@item Readers
+@ref{go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function, , @t{next}} (generic function)
+@end table
+@end defvr
+@end table
+@end deftp
 
 
 @c --------------------
@@ -1307,6 +1864,36 @@ Given a lens and a rec@comma{} return the focused value
 
 @node Internal macros, Internal functions, Internal definitions, Internal definitions
 @subsection Macros
+@deffn {Macro} {comment} &body BODY
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro}@c
+@macrosubindex{comment}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
+@deffn {Macro} {defdocumentation} NAME &body DOC-SPECS
+@anchor{go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶DEFDOCUMENTATION macro}@c
+@macrosubindex{defdocumentation}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS․INTERNALS package, , @t{data-lens.transducers.internals}}
+@item Source
+@t{transducer-protocol.lisp}
+@end table
+@end deffn
+@deffn {Macro} {transducer-lambda} &body ((TWO-ARG-ACC TWO-ARG-NEXT) &body TWO-ARG-BODY)
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶TRANSDUCER-LAMBDA macro}@c
+@macrosubindex{transducer-lambda}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Macro} {updatef} PLACE FUN &rest ARGS
 @anchor{go to the DATA-LENS∶∶UPDATEF macro}@c
 @macrosubindex{updatef}@c
@@ -1350,6 +1937,16 @@ Given a lens and a rec@comma{} return the focused value
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {eduction} XF SEQ
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function}@c
+@functionsubindex{eduction}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {filler} LENGTH1 LENGTH2 FILL-VALUE
 @anchor{go to the DATA-LENS∶∶FILLER function}@c
 @functionsubindex{filler}@c
@@ -1381,6 +1978,16 @@ A lens for updating a alist@comma{} preserving previous values
 @ref{go to the data-lens/lens․lisp file, , @t{lens.lisp}} (file)
 @end table
 @end deffn
+@deffn {Function} {seq} A B
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶SEQ function}@c
+@functionsubindex{seq}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Source
+@t{transducers.lisp}
+@end table
+@end deffn
 @deffn {Function} {update} THING FUN &rest ARGS
 @anchor{go to the DATA-LENS∶∶UPDATE function}@c
 @functionsubindex{update}@c
@@ -1456,6 +2063,24 @@ A lens for updating a alist@comma{} preserving previous values
 @end deffn
 @end table
 @end deffn
+@deffn {Generic Function} {next} OBJECT
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function}@c
+@genericsubindex{next}@c
+@table @strong
+@item Package
+@ref{go to the DATA-LENS․TRANSDUCERS package, , @t{data-lens.transducers}}
+@item Methods
+@deffn {Method} {next} (LAZY-SEQUENCE @t{lazy-sequence})
+@anchor{go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method}@c
+@methodsubindex{next}@c
+automatically generated reader method
+@table @strong
+@item Source
+@t{lazy-sequence.lisp}
+@end table
+@end deffn
+@end table
+@end deffn
 @deffn {Generic Function} {unconstant} OBJECT
 @anchor{go to the DATA-LENS․LENSES∶∶UNCONSTANT generic function}@c
 @genericsubindex{unconstant}@c
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diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dINIT-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dVECTOR_002dBUILDER-method.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dINIT-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dVECTOR_002dBUILDER-method.html
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diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dINIT-generic-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dINIT-generic-function.html
new file mode 100644
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+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236SYMBOL-COMMON_002dLISP_2236_2236T-method">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC COMMON-LISP∶∶T COMMON-LISP∶∶SYMBOL COMMON-LISP∶∶T method</a>.</p>
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diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-COMMON_002dLISP_005b_003f_005d_005b_003f_005dFUNCTION-COMMON_002dL.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-COMMON_002dLISP_005b_003f_005d_005b_003f_005dFUNCTION-COMMON_002dL.html
new file mode 100644
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+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-COMMON_002dLISP_2236_2236FUNCTION-COMMON_002dLISP_2236_2236T-method">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE COMMON-LISP∶∶FUNCTION COMMON-LISP∶∶T method</a>.</p>
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diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-generic-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dREDUCE_002dGENERIC-generic-function.html
new file mode 100644
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236REDUCE_002dGENERIC-generic-function">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶REDUCE-GENERIC generic function</a>.</p>
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diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dSTEPPER-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dHASH_002dTABLE_002dBUILDER-method.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dSTEPPER-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dHASH_002dTABLE_002dBUILDER-method.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+<title>go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method (The data-lens/beta/transducers Reference Manual)</title>
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+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dBUILDER_2769-method">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-BUILDER❩ method</a>.</p>
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+<title>go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method (The data-lens/beta/transducers Reference Manual)</title>
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+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-method">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ method</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dSTEPPER-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dVECTOR_002dBUILDER-method.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dSTEPPER-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dVECTOR_002dBUILDER-method.html
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+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236VECTOR_002dBUILDER_2769-method">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER ❨eql DATA-LENS․TRANSDUCERS∶∶VECTOR-BUILDER❩ method</a>.</p>
+</body>
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new file mode 100644
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+
+<meta http-equiv="Refresh" content="0; url=Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-generic-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236STEPPER-generic-function">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶STEPPER generic function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dTRANSDUCE-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dTRANSDUCE-function.html
new file mode 100644
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--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dTRANSDUCE-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236TRANSDUCE-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236TRANSDUCE-function">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶TRANSDUCE function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-method.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-method.html
new file mode 100644
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--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-method.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
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+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236T-method">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-COMMON_002dLISP_2236_2236T-COMMON_002dLISP_2236_2236T-method">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP COMMON-LISP∶∶T COMMON-LISP∶∶T method</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLIST_002dBUILDER-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-method.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLIST_002dBUILDER-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-method.html
new file mode 100644
index 0000000..1a076ca
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-eql-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLIST_002dBUILDER-COMMON_002dLISP_005b_003f_005d_005b_003f_005dT-method.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-COMMON_002dLISP_2236_2236T-method">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-_2768eql-DATA_002dLENS_2024TRANSDUCERS_2236_2236LIST_002dBUILDER_2769-COMMON_002dLISP_2236_2236T-method">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP ❨eql DATA-LENS․TRANSDUCERS∶∶LIST-BUILDER❩ COMMON-LISP∶∶T method</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-generic-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-generic-function.html
new file mode 100644
index 0000000..fe97a07
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_002eINTERNALS_005b_003f_005d_005b_003f_005dUNWRAP-generic-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-generic-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2024INTERNALS_2236_2236UNWRAP-generic-function">go to the DATA-LENS․TRANSDUCERS․INTERNALS∶∶UNWRAP generic function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCATTING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCATTING-function.html
new file mode 100644
index 0000000..e06b077
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCATTING-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶CATTING function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶CATTING function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
+div.display {margin-left: 3.2em}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236CATTING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236CATTING-function">go to the DATA-LENS․TRANSDUCERS∶∶CATTING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOLLECTING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOLLECTING-function.html
new file mode 100644
index 0000000..a9be06f
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOLLECTING-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
+div.display {margin-left: 3.2em}
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+span.nolinebreak {white-space: nowrap}
+span.roman {font-family: initial; font-weight: normal}
+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COLLECTING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COLLECTING-function">go to the DATA-LENS․TRANSDUCERS∶∶COLLECTING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOMMENT-macro.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOMMENT-macro.html
new file mode 100644
index 0000000..a7e7109
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOMMENT-macro.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Internal-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMMENT-macro">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Internal-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMMENT-macro">go to the DATA-LENS․TRANSDUCERS∶∶COMMENT macro</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOMPRESSING_002dRUNS-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOMPRESSING_002dRUNS-function.html
new file mode 100644
index 0000000..da438f4
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dCOMPRESSING_002dRUNS-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMPRESSING_002dRUNS-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236COMPRESSING_002dRUNS-function">go to the DATA-LENS․TRANSDUCERS∶∶COMPRESSING-RUNS function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dDEDUPING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dDEDUPING-function.html
new file mode 100644
index 0000000..d5c0c50
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dDEDUPING-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DEDUPING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DEDUPING-function">go to the DATA-LENS․TRANSDUCERS∶∶DEDUPING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dDROPPING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dDROPPING-function.html
new file mode 100644
index 0000000..6b7a513
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dDROPPING-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DROPPING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236DROPPING-function">go to the DATA-LENS․TRANSDUCERS∶∶DROPPING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dEDUCTION-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dEDUCTION-function.html
new file mode 100644
index 0000000..78bef93
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dEDUCTION-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Internal-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236EDUCTION-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Internal-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236EDUCTION-function">go to the DATA-LENS․TRANSDUCERS∶∶EDUCTION function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dFILTERING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dFILTERING-function.html
new file mode 100644
index 0000000..3727915
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dFILTERING-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236FILTERING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236FILTERING-function">go to the DATA-LENS․TRANSDUCERS∶∶FILTERING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dHASH_002dTABLE_002dSELECT-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dHASH_002dTABLE_002dSELECT-function.html
new file mode 100644
index 0000000..6a02cac
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dHASH_002dTABLE_002dSELECT-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dSELECT-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236HASH_002dTABLE_002dSELECT-function">go to the DATA-LENS․TRANSDUCERS∶∶HASH-TABLE-SELECT function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dIOTA-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dIOTA-function.html
new file mode 100644
index 0000000..a00e3fd
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dIOTA-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶IOTA function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶IOTA function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
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+pre.menu-preformatted {font-family: serif}
+span.nolinebreak {white-space: nowrap}
+span.roman {font-family: initial; font-weight: normal}
+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236IOTA-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236IOTA-function">go to the DATA-LENS․TRANSDUCERS∶∶IOTA function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-class.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-class.html
new file mode 100644
index 0000000..0062e2e
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-class.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
+div.display {margin-left: 3.2em}
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+pre.menu-preformatted {font-family: serif}
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+span.roman {font-family: initial; font-weight: normal}
+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-classes.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-class">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-classes.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-class">go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE class</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-function.html
new file mode 100644
index 0000000..d639cda
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
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+pre.format {font-family: inherit}
+pre.menu-comment {font-family: serif}
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+span.roman {font-family: initial; font-weight: normal}
+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-function">go to the DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMAPCATTING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMAPCATTING-function.html
new file mode 100644
index 0000000..3ff632b
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMAPCATTING-function.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
+div.display {margin-left: 3.2em}
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+pre.format {font-family: inherit}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPCATTING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPCATTING-function">go to the DATA-LENS․TRANSDUCERS∶∶MAPCATTING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMAPPING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMAPPING-function.html
new file mode 100644
index 0000000..5e17948
--- /dev/null
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
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+<!-- This file redirects to the location of a node or anchor -->
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+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
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+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPPING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MAPPING-function">go to the DATA-LENS․TRANSDUCERS∶∶MAPPING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dFILTERING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dFILTERING-function.html
new file mode 100644
index 0000000..d9a6e13
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@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
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+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dFILTERING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dFILTERING-function">go to the DATA-LENS․TRANSDUCERS∶∶MV-FILTERING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dMAPPING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dMAPPING-function.html
new file mode 100644
index 0000000..bf31e74
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
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+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dMAPPING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dMAPPING-function">go to the DATA-LENS․TRANSDUCERS∶∶MV-MAPPING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dSELECTING-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dMV_002dSELECTING-function.html
new file mode 100644
index 0000000..9d4d3da
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function (The data-lens/beta/transducers Reference Manual)">
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+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dSELECTING-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236MV_002dSELECTING-function">go to the DATA-LENS․TRANSDUCERS∶∶MV-SELECTING function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dNEXT-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-method.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dNEXT-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-method.html
new file mode 100644
index 0000000..654dc2c
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dNEXT-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dLAZY_002dSEQUENCE-method.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method (The data-lens/beta/transducers Reference Manual)">
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+<meta http-equiv="Refresh" content="0; url=Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-method">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-DATA_002dLENS_2024TRANSDUCERS_2236_2236LAZY_002dSEQUENCE-method">go to the DATA-LENS․TRANSDUCERS∶∶NEXT DATA-LENS․TRANSDUCERS∶∶LAZY-SEQUENCE method</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dNEXT-generic-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dNEXT-generic-function.html
new file mode 100644
index 0000000..1ceb65c
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dNEXT-generic-function.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
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+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function (The data-lens/beta/transducers Reference Manual)">
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+
+<meta http-equiv="Refresh" content="0; url=Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-generic-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Internal-generic-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236NEXT-generic-function">go to the DATA-LENS․TRANSDUCERS∶∶NEXT generic function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dREPEATING-macro.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dREPEATING-macro.html
new file mode 100644
index 0000000..d900f22
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dREPEATING-macro.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
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+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro (The data-lens/beta/transducers Reference Manual)">
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+</style>
+
+<meta http-equiv="Refresh" content="0; url=Exported-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING-macro">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-macros.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING-macro">go to the DATA-LENS․TRANSDUCERS∶∶REPEATING macro</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dREPEATING_002a-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dREPEATING_002a-function.html
new file mode 100644
index 0000000..95f4de3
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+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dREPEATING_002a-function.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
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+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function (The data-lens/beta/transducers Reference Manual)">
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+<meta name="Generator" content="texi2any">
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+
+<meta http-equiv="Refresh" content="0; url=Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING_002a-function">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="Exported-functions.html#go-to-the-DATA_002dLENS_2024TRANSDUCERS_2236_2236REPEATING_002a-function">go to the DATA-LENS․TRANSDUCERS∶∶REPEATING* function</a>.</p>
+</body>
diff --git a/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dSEQ-function.html b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dSEQ-function.html
new file mode 100644
index 0000000..c56b395
--- /dev/null
+++ b/docs/go-to-the-DATA_002dLENS_002eTRANSDUCERS_005b_003f_005d_005b_003f_005dSEQ-function.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
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+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
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index a906042..527f078 100644
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-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="go to the data-lens system (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
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diff --git a/docs/go-to-the-data_002dlens_002easd-file.html b/docs/go-to-the-data_002dlens_002easd-file.html
index 236f447..1424877 100644
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-<meta name="description" content="The data-lens Reference Manual.">
-<meta name="keywords" content="go to the data-lens․asd file (The data-lens Reference Manual)">
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diff --git a/docs/go-to-the-data_002dlens_002fbeta_002ftransducers-system.html b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers-system.html
new file mode 100644
index 0000000..46ac1ad
--- /dev/null
+++ b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers-system.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the data-lens/beta/transducers system (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the data-lens/beta/transducers system (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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+<meta http-equiv="Refresh" content="0; url=The-data_002dlens_002fbeta_002ftransducers-system.html#go-to-the-data_002dlens_002fbeta_002ftransducers-system">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="The-data_002dlens_002fbeta_002ftransducers-system.html#go-to-the-data_002dlens_002fbeta_002ftransducers-system">go to the data-lens/beta/transducers system</a>.</p>
+</body>
diff --git a/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html
new file mode 100644
index 0000000..06aed7d
--- /dev/null
+++ b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the data-lens/beta/transducers/lazy-sequence․lisp file (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the data-lens/beta/transducers/lazy-sequence․lisp file (The data-lens/beta/transducers Reference Manual)">
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+<meta name="Generator" content="texi2any">
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+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file">go to the data-lens/beta/transducers/lazy-sequence․lisp file</a>.</p>
+</body>
diff --git a/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html
new file mode 100644
index 0000000..e087d55
--- /dev/null
+++ b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the data-lens/beta/transducers/package․lisp file (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the data-lens/beta/transducers/package․lisp file (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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+</style>
+
+<meta http-equiv="Refresh" content="0; url=The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file">go to the data-lens/beta/transducers/package․lisp file</a>.</p>
+</body>
diff --git a/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html
new file mode 100644
index 0000000..625ed8e
--- /dev/null
+++ b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the data-lens/beta/transducers/transducer-protocol․lisp file (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the data-lens/beta/transducers/transducer-protocol․lisp file (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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+kbd {font-style: oblique}
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+pre.format {font-family: inherit}
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+pre.menu-preformatted {font-family: serif}
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+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+
+<meta http-equiv="Refresh" content="0; url=The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file">
+
+</head>
+
+<body lang="en">
+
+<p>The node you are looking for is at <a href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file">go to the data-lens/beta/transducers/transducer-protocol․lisp file</a>.</p>
+</body>
diff --git a/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html
new file mode 100644
index 0000000..5978b67
--- /dev/null
+++ b/docs/go-to-the-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+<!-- This file redirects to the location of a node or anchor -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>go to the data-lens/beta/transducers/transducers․lisp file (The data-lens/beta/transducers Reference Manual)</title>
+
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
+<meta name="keywords" content="go to the data-lens/beta/transducers/transducers․lisp file (The data-lens/beta/transducers Reference Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="texi2any">
+<style type="text/css">
+<!--
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-<title>go to the data-lens/optics․lisp file (The data-lens Reference Manual)</title>
+<title>go to the data-lens/optics․lisp file (The data-lens/beta/transducers Reference Manual)</title>
 
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+<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
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+<title>Top (The data-lens/beta/transducers Reference Manual)</title>
 
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-<meta name="keywords" content="Top (The data-lens Reference Manual)">
+<meta name="description" content="The data-lens/beta/transducers Reference Manual.">
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+<link href="Indexes.html" rel="index" title="Indexes">
 <link href="#SEC_Contents" rel="contents" title="Table of Contents">
 <link href="../dir/index.html" rel="up" title="(dir)">
-<link href="Systems.html#Systems" rel="next" title="Systems">
+<link href="Systems.html" rel="next" title="Systems">
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@@ -47,7 +38,7 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<h1 class="settitle" align="center">The data-lens Reference Manual</h1>
+<h1 class="settitle" align="center">The data-lens/beta/transducers Reference Manual</h1>
 
 
 
@@ -94,54 +85,62 @@ ul.no-bullet {list-style: none}
 
 
 
-<a name="SEC_Contents"></a>
+<span id="SEC_Contents"></span>
 <h2 class="contents-heading">Table of Contents</h2>
 
 <div class="contents">
 
 <ul class="no-bullet">
-  <li><a name="toc-Systems-1" href="Systems.html#Systems">1 Systems</a>
+  <li><a id="toc-Systems-1" href="Systems.html#Systems">1 Systems</a>
   <ul class="no-bullet">
-    <li><a name="toc-data_002dlens" href="The-data_002dlens-system.html#The-data_002dlens-system">1.1 <tt>data-lens</tt></a></li>
+    <li><a id="toc-data_002dlens_002fbeta_002ftransducers" href="The-data_002dlens_002fbeta_002ftransducers-system.html#The-data_002dlens_002fbeta_002ftransducers-system">1.1 <tt>data-lens/beta/transducers</tt></a></li>
+    <li><a id="toc-data_002dlens" href="The-data_002dlens-system.html#The-data_002dlens-system">1.2 <tt>data-lens</tt></a></li>
   </ul></li>
-  <li><a name="toc-Files-1" href="Files.html#Files">2 Files</a>
+  <li><a id="toc-Files-1" href="Files.html#Files">2 Files</a>
   <ul class="no-bullet">
-    <li><a name="toc-Lisp" href="Lisp-files.html#Lisp-files">2.1 Lisp</a>
+    <li><a id="toc-Lisp" href="Lisp-files.html#Lisp-files">2.1 Lisp</a>
     <ul class="no-bullet">
-      <li><a name="toc-data_002dlens_002easd" href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file">2.1.1 <tt>data-lens.asd</tt></a></li>
-      <li><a name="toc-data_002dlens_002fpackage_002elisp" href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file">2.1.2 <tt>data-lens/package.lisp</tt></a></li>
-      <li><a name="toc-data_002dlens_002foptics_002elisp" href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file">2.1.3 <tt>data-lens/optics.lisp</tt></a></li>
-      <li><a name="toc-data_002dlens_002flens_002elisp" href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file">2.1.4 <tt>data-lens/lens.lisp</tt></a></li>
+      <li><a id="toc-data_002dlens_002easd" href="The-data_002dlens_002easd-file.html#The-data_002dlens_2024asd-file">2.1.1 <tt>data-lens.asd</tt></a></li>
+      <li><a id="toc-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp" href="The-data_002dlens_002fbeta_002ftransducers_002fpackage_002elisp-file.html#The-data_002dlens_002fbeta_002ftransducers_002fpackage_2024lisp-file">2.1.2 <tt>data-lens/beta/transducers/package.lisp</tt></a></li>
+      <li><a id="toc-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp" href="The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_002elisp-file.html#The-data_002dlens_002fbeta_002ftransducers_002ftransducer_002dprotocol_2024lisp-file">2.1.3 <tt>data-lens/beta/transducers/transducer-protocol.lisp</tt></a></li>
+      <li><a id="toc-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp" href="The-data_002dlens_002fbeta_002ftransducers_002ftransducers_002elisp-file.html#The-data_002dlens_002fbeta_002ftransducers_002ftransducers_2024lisp-file">2.1.4 <tt>data-lens/beta/transducers/transducers.lisp</tt></a></li>
+      <li><a id="toc-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp" href="The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_002elisp-file.html#The-data_002dlens_002fbeta_002ftransducers_002flazy_002dsequence_2024lisp-file">2.1.5 <tt>data-lens/beta/transducers/lazy-sequence.lisp</tt></a></li>
+      <li><a id="toc-data_002dlens_002fpackage_002elisp" href="The-data_002dlens_002fpackage_002elisp-file.html#The-data_002dlens_002fpackage_2024lisp-file">2.1.6 <tt>data-lens/package.lisp</tt></a></li>
+      <li><a id="toc-data_002dlens_002foptics_002elisp" href="The-data_002dlens_002foptics_002elisp-file.html#The-data_002dlens_002foptics_2024lisp-file">2.1.7 <tt>data-lens/optics.lisp</tt></a></li>
+      <li><a id="toc-data_002dlens_002flens_002elisp" href="The-data_002dlens_002flens_002elisp-file.html#The-data_002dlens_002flens_2024lisp-file">2.1.8 <tt>data-lens/lens.lisp</tt></a></li>
     </ul></li>
   </ul></li>
-  <li><a name="toc-Packages-1" href="Packages.html#Packages">3 Packages</a>
+  <li><a id="toc-Packages-1" href="Packages.html#Packages">3 Packages</a>
   <ul class="no-bullet">
-    <li><a name="toc-data_002dlens-1" href="The-data_002dlens-package.html#The-data_002dlens-package">3.1 <tt>data-lens</tt></a></li>
-    <li><a name="toc-data_002dlens_002epackage" href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024package-package">3.2 <tt>data-lens.package</tt></a></li>
-    <li><a name="toc-data_002dlens_002elenses" href="The-data_002dlens_002elenses-package.html#The-data_002dlens_2024lenses-package">3.3 <tt>data-lens.lenses</tt></a></li>
+    <li><a id="toc-data_002dlens-1" href="The-data_002dlens-package.html#The-data_002dlens-package">3.1 <tt>data-lens</tt></a></li>
+    <li><a id="toc-data_002dlens_002etransducers" href="The-data_002dlens_002etransducers-package.html#The-data_002dlens_2024transducers-package">3.2 <tt>data-lens.transducers</tt></a></li>
+    <li><a id="toc-data_002dlens_002epackage" href="The-data_002dlens_002epackage-package.html#The-data_002dlens_2024package-package">3.3 <tt>data-lens.package</tt></a></li>
+    <li><a id="toc-data_002dlens_002elenses" href="The-data_002dlens_002elenses-package.html#The-data_002dlens_2024lenses-package">3.4 <tt>data-lens.lenses</tt></a></li>
+    <li><a id="toc-data_002dlens_002etransducers_002einternals" href="The-data_002dlens_002etransducers_002einternals-package.html#The-data_002dlens_2024transducers_2024internals-package">3.5 <tt>data-lens.transducers.internals</tt></a></li>
   </ul></li>
-  <li><a name="toc-Definitions-1" href="Definitions.html#Definitions">4 Definitions</a>
+  <li><a id="toc-Definitions-1" href="Definitions.html#Definitions">4 Definitions</a>
   <ul class="no-bullet">
-    <li><a name="toc-Exported-definitions-1" href="Exported-definitions.html#Exported-definitions">4.1 Exported definitions</a>
+    <li><a id="toc-Exported-definitions-1" href="Exported-definitions.html#Exported-definitions">4.1 Exported definitions</a>
     <ul class="no-bullet">
-      <li><a name="toc-Macros" href="Exported-macros.html#Exported-macros">4.1.1 Macros</a></li>
-      <li><a name="toc-Functions" href="Exported-functions.html#Exported-functions">4.1.2 Functions</a></li>
-      <li><a name="toc-Generic-functions" href="Exported-generic-functions.html#Exported-generic-functions">4.1.3 Generic functions</a></li>
+      <li><a id="toc-Macros" href="Exported-macros.html#Exported-macros">4.1.1 Macros</a></li>
+      <li><a id="toc-Functions" href="Exported-functions.html#Exported-functions">4.1.2 Functions</a></li>
+      <li><a id="toc-Generic-functions" href="Exported-generic-functions.html#Exported-generic-functions">4.1.3 Generic functions</a></li>
+      <li><a id="toc-Classes" href="Exported-classes.html#Exported-classes">4.1.4 Classes</a></li>
     </ul></li>
-    <li><a name="toc-Internal-definitions-1" href="Internal-definitions.html#Internal-definitions">4.2 Internal definitions</a>
+    <li><a id="toc-Internal-definitions-1" href="Internal-definitions.html#Internal-definitions">4.2 Internal definitions</a>
     <ul class="no-bullet">
-      <li><a name="toc-Macros-1" href="Internal-macros.html#Internal-macros">4.2.1 Macros</a></li>
-      <li><a name="toc-Functions-1" href="Internal-functions.html#Internal-functions">4.2.2 Functions</a></li>
-      <li><a name="toc-Generic-functions-1" href="Internal-generic-functions.html#Internal-generic-functions">4.2.3 Generic functions</a></li>
-      <li><a name="toc-Classes" href="Internal-classes.html#Internal-classes">4.2.4 Classes</a></li>
+      <li><a id="toc-Macros-1" href="Internal-macros.html#Internal-macros">4.2.1 Macros</a></li>
+      <li><a id="toc-Functions-1" href="Internal-functions.html#Internal-functions">4.2.2 Functions</a></li>
+      <li><a id="toc-Generic-functions-1" href="Internal-generic-functions.html#Internal-generic-functions">4.2.3 Generic functions</a></li>
+      <li><a id="toc-Classes-1" href="Internal-classes.html#Internal-classes">4.2.4 Classes</a></li>
     </ul></li>
   </ul></li>
-  <li><a name="toc-Indexes-1" href="Indexes.html#Indexes">Appendix A Indexes</a>
+  <li><a id="toc-Indexes-1" href="Indexes.html#Indexes">Appendix A Indexes</a>
   <ul class="no-bullet">
-    <li><a name="toc-Concepts" href="Concept-index.html#Concept-index">A.1 Concepts</a></li>
-    <li><a name="toc-Functions-2" href="Function-index.html#Function-index">A.2 Functions</a></li>
-    <li><a name="toc-Variables" href="Variable-index.html#Variable-index">A.3 Variables</a></li>
-    <li><a name="toc-Data-types" href="Data-type-index.html#Data-type-index">A.4 Data types</a></li>
+    <li><a id="toc-Concepts" href="Concept-index.html#Concept-index" rel="index">A.1 Concepts</a></li>
+    <li><a id="toc-Functions-2" href="Function-index.html#Function-index" rel="index">A.2 Functions</a></li>
+    <li><a id="toc-Variables" href="Variable-index.html#Variable-index" rel="index">A.3 Variables</a></li>
+    <li><a id="toc-Data-types" href="Data-type-index.html#Data-type-index" rel="index">A.4 Data types</a></li>
   </ul></li>
 </ul>
 </div>
@@ -149,28 +148,26 @@ ul.no-bullet {list-style: none}
 
 
 
-<a name="Top"></a>
-<div class="header">
+<span id="Top"></span><div class="header">
 <p>
-Next: <a href="Systems.html#Systems" accesskey="n" rel="next">Systems</a>, Previous: <a href="../dir/index.html" accesskey="p" rel="prev">(dir)</a>, Up: <a href="../dir/index.html" accesskey="u" rel="up">(dir)</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html#Indexes" title="Index" rel="index">Index</a>]</p>
+Next: <a href="Systems.html" accesskey="n" rel="next">Systems</a>, Previous: <a href="../dir/index.html" accesskey="p" rel="prev">(dir)</a>, Up: <a href="../dir/index.html" accesskey="u" rel="up">(dir)</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
-<a name="The-data_002dlens-Reference-Manual"></a>
-<h1 class="top">The data-lens Reference Manual</h1>
-<p>This is the data-lens Reference Manual,
+<span id="The-data_002dlens_002fbeta_002ftransducers-Reference-Manual"></span><h1 class="top">The data-lens/beta/transducers Reference Manual</h1>
+<p>This is the data-lens/beta/transducers Reference Manual,
 generated automatically by Declt version 3.0 &quot;Montgomery Scott&quot;
-on Mon Oct 12 20:22:22 2020 GMT-8.
+on Wed Jan 06 14:24:28 2021 GMT-8.
 </p>
 <table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="Systems.html#Systems" accesskey="1">Systems</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The systems documentation
+<tr><td align="left" valign="top">&bull; <a href="Systems.html" accesskey="1">Systems</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The systems documentation
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Files.html#Files" accesskey="2">Files</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The files documentation
+<tr><td align="left" valign="top">&bull; <a href="Files.html" accesskey="2">Files</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The files documentation
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Packages.html#Packages" accesskey="3">Packages</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The packages documentation
+<tr><td align="left" valign="top">&bull; <a href="Packages.html" accesskey="3">Packages</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The packages documentation
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Definitions.html#Definitions" accesskey="4">Definitions</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The symbols documentation
+<tr><td align="left" valign="top">&bull; <a href="Definitions.html" accesskey="4">Definitions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The symbols documentation
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Indexes.html#Indexes" accesskey="5">Indexes</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Concepts, functions, variables and data types
+<tr><td align="left" valign="top">&bull; <a href="Indexes.html" accesskey="5">Indexes</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Concepts, functions, variables and data types
 </td></tr>
 </table>
 
@@ -179,7 +176,7 @@ on Mon Oct 12 20:22:22 2020 GMT-8.
 <hr>
 <div class="header">
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+Next: <a href="Systems.html" accesskey="n" rel="next">Systems</a>, Previous: <a href="../dir/index.html" accesskey="p" rel="prev">(dir)</a>, Up: <a href="../dir/index.html" accesskey="u" rel="up">(dir)</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
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