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  "Encoding": "UTF-8",
  "Title": "List-Processing à La 'SRFI-1'",
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  "Date": "2026-06-13",
  "Authors@R": "person(given = \"Peter\",\nfamily = \"Danenberg\",\nrole = c(\"aut\", \"cre\"),\nemail = \"pcd@roxygen.org\")",
  "Description": "Provides list-processing utilities inspired by the\n'SRFI-1' list library for Scheme\n(<https://srfi.schemers.org/srfi-1/srfi-1.html>), including\ncar/cdr family accessors, zip, pairwise, for.each,\npair.fold.right and friends.  Higher-order helpers that are\northogonal to list processing are deferred to the 'functional'\npackage; this package is freely a mixture of implementation and\nAPI.",
  "License": "GPL (>= 2)",
  "URL": "https://github.com/klutometis/R-lisp",
  "BugReports": "https://github.com/klutometis/R-lisp/issues",
  "LazyLoad": "yes",
  "Collate": "'lisp.R'",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-06-15 15:56:45 UTC",
    "User": "root"
  },
  "Author": "Peter Danenberg [aut, cre]",
  "Maintainer": "Peter Danenberg <pcd@roxygen.org>",
  "Repository": "https://cran.r-universe.dev",
  "Date/Publication": "2026-06-15 14:41:03 UTC",
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      "date": "2026-06-15"
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    "count": 1,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/lisp"
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  "_mentions": 5,
  "_devurl": "https://github.com/klutometis/r-lisp",
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  "_assets": [
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    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
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    "manual.pdf"
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    "cadar",
    "caddr",
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    "car",
    "cdddr",
    "cddr",
    "cdr",
    "for.each",
    "is.even",
    "is.nil",
    "is.odd",
    "last",
    "nil",
    "pair.fold.right",
    "pairwise",
    "zip",
    "zip.c",
    "zip.list",
    "zip.with.names"
  ],
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    {
      "page": "caar",
      "title": "Composite 'car'/'cdr'",
      "topics": [
        "caar"
      ]
    },
    {
      "page": "cadar",
      "title": "Composite 'car'/'cdr'",
      "topics": [
        "cadar"
      ]
    },
    {
      "page": "caddr",
      "title": "Composite 'car'/'cdr'",
      "topics": [
        "caddr"
      ]
    },
    {
      "page": "cadr",
      "title": "Composite 'car'/'cdr'",
      "topics": [
        "cadr"
      ]
    },
    {
      "page": "car",
      "title": "First element of a list",
      "topics": [
        "car"
      ]
    },
    {
      "page": "cdddr",
      "title": "Composite 'car'/'cdr'",
      "topics": [
        "cdddr"
      ]
    },
    {
      "page": "cddr",
      "title": "Composite 'car'/'cdr'",
      "topics": [
        "cddr"
      ]
    },
    {
      "page": "cdr",
      "title": "Return elements after the first of a list.",
      "topics": [
        "cdr"
      ]
    },
    {
      "page": "cdrs",
      "title": "Try to get the 'cdrs'; otherwise, return 'nil'.",
      "topics": [
        "cdrs"
      ]
    },
    {
      "page": "for.each",
      "title": "Apply 'f' to the successive elements of '...'.",
      "topics": [
        "for.each"
      ]
    },
    {
      "page": "is.even",
      "title": "Is a number even?",
      "topics": [
        "is.even"
      ]
    },
    {
      "page": "is.nil",
      "title": "Whether a list is empty.",
      "topics": [
        "is.nil"
      ]
    },
    {
      "page": "is.odd",
      "title": "Is a number odd?",
      "topics": [
        "is.odd"
      ]
    },
    {
      "page": "last",
      "title": "Last element in a list.",
      "topics": [
        "last"
      ]
    },
    {
      "page": "nil",
      "title": "The empty list",
      "topics": [
        "nil"
      ]
    },
    {
      "page": "pair.fold.right",
      "title": "pair-fold-right from SRFI-1.",
      "topics": [
        "pair.fold.right"
      ]
    },
    {
      "page": "pairwise",
      "title": "Combine a list into pairwise elements; lists should be of the same length. In case of odd numbers of members, the last will be removed.",
      "topics": [
        "pairwise"
      ]
    },
    {
      "page": "zip",
      "title": "Zip _n_ lists together into tuplets of length _n_.",
      "topics": [
        "zip"
      ]
    },
    {
      "page": "zip.c",
      "title": "Zip using 'c'.",
      "topics": [
        "zip.c"
      ]
    },
    {
      "page": "zip.list",
      "title": "Zip using 'list'.",
      "topics": [
        "zip.list"
      ]
    },
    {
      "page": "zip.with.names",
      "title": "Do a less efficient zip whilst preserving names.",
      "topics": [
        "zip.with.names"
      ]
    }
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  "_nocasepkg": "lisp",
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