| 1 | ;;;; srfi-14.scm --- SRFI-14 procedures for Guile |
| 2 | ;;;; |
| 3 | ;;;; Copyright (C) 2001 Free Software Foundation, Inc. |
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| 43 | |
| 44 | (define-module (srfi srfi-14) |
| 45 | :export ( |
| 46 | ;;; General procedures |
| 47 | char-set? |
| 48 | char-set= |
| 49 | char-set<= |
| 50 | char-set-hash |
| 51 | |
| 52 | ;;; Iterating over character sets |
| 53 | char-set-cursor |
| 54 | char-set-ref |
| 55 | char-set-cursor-next |
| 56 | end-of-char-set? |
| 57 | char-set-fold |
| 58 | char-set-unfold char-set-unfold! |
| 59 | char-set-for-each |
| 60 | char-set-map |
| 61 | |
| 62 | ;;; Creating character sets |
| 63 | char-set-copy |
| 64 | char-set |
| 65 | list->char-set list->char-set! |
| 66 | string->char-set string->char-set! |
| 67 | char-set-filter char-set-filter! |
| 68 | ucs-range->char-set ucs-range->char-set! |
| 69 | ->char-set |
| 70 | |
| 71 | ;;; Querying character sets |
| 72 | char-set-size |
| 73 | char-set-count |
| 74 | char-set->list |
| 75 | char-set->string |
| 76 | char-set-contains? |
| 77 | char-set-every |
| 78 | char-set-any |
| 79 | |
| 80 | ;;; Character set algebra |
| 81 | char-set-adjoin char-set-adjoin! |
| 82 | char-set-delete char-set-delete! |
| 83 | char-set-complement |
| 84 | char-set-union |
| 85 | char-set-intersection |
| 86 | char-set-difference |
| 87 | char-set-xor |
| 88 | char-set-diff+intersection |
| 89 | char-set-complement! |
| 90 | char-set-union! |
| 91 | char-set-intersection! |
| 92 | char-set-difference! |
| 93 | char-set-xor! |
| 94 | char-set-diff+intersection! |
| 95 | |
| 96 | ;;; Standard character sets |
| 97 | char-set:lower-case |
| 98 | char-set:upper-case |
| 99 | char-set:title-case |
| 100 | char-set:letter |
| 101 | char-set:digit |
| 102 | char-set:letter+digit |
| 103 | char-set:graphic |
| 104 | char-set:printing |
| 105 | char-set:whitespace |
| 106 | char-set:iso-control |
| 107 | char-set:punctuation |
| 108 | char-set:symbol |
| 109 | char-set:hex-digit |
| 110 | char-set:blank |
| 111 | char-set:ascii |
| 112 | char-set:empty |
| 113 | char-set:full |
| 114 | )) |
| 115 | |
| 116 | (cond-expand-provide (current-module) '(srfi-14)) |
| 117 | |
| 118 | (load-extension "libguile-srfi-srfi-13-14" "scm_init_srfi_14") |
| 119 | |
| 120 | (define (->char-set x) |
| 121 | (cond |
| 122 | ((string? x) (string->char-set x)) |
| 123 | ((char? x) (char-set x)) |
| 124 | ((char-set? x) x) |
| 125 | (else (error "invalid argument to `->char-set'")))) |
| 126 | |
| 127 | (define char-set:full (ucs-range->char-set 0 256)) |
| 128 | |
| 129 | (define char-set:lower-case (char-set-filter char-lower-case? char-set:full)) |
| 130 | |
| 131 | (define char-set:upper-case (char-set-filter char-upper-case? char-set:full)) |
| 132 | |
| 133 | (define char-set:title-case (char-set)) |
| 134 | |
| 135 | (define char-set:letter (char-set-union char-set:lower-case |
| 136 | char-set:upper-case)) |
| 137 | |
| 138 | (define char-set:digit (string->char-set "0123456789")) |
| 139 | |
| 140 | (define char-set:letter+digit |
| 141 | (char-set-union char-set:letter char-set:digit)) |
| 142 | |
| 143 | (define char-set:punctuation (string->char-set "!\"#%&'()*,-./:;?@[\\]_{}")) |
| 144 | |
| 145 | (define char-set:symbol (string->char-set "$+<=>^`|~")) |
| 146 | |
| 147 | (define char-set:whitespace (char-set #\space #\newline #\tab #\cr #\vt #\np)) |
| 148 | |
| 149 | (define char-set:blank (char-set #\space #\tab)) |
| 150 | |
| 151 | (define char-set:graphic |
| 152 | (char-set-union char-set:letter+digit char-set:punctuation char-set:symbol)) |
| 153 | |
| 154 | (define char-set:printing |
| 155 | (char-set-union char-set:graphic char-set:whitespace)) |
| 156 | |
| 157 | (define char-set:iso-control |
| 158 | (char-set-adjoin |
| 159 | (char-set-filter (lambda (ch) (< (char->integer ch) 31)) char-set:full) |
| 160 | (integer->char 127))) |
| 161 | |
| 162 | (define char-set:hex-digit (string->char-set "0123456789abcdefABCDEF")) |
| 163 | |
| 164 | (define char-set:ascii |
| 165 | (char-set-filter (lambda (ch) (< (char->integer ch) 128)) char-set:full)) |
| 166 | |
| 167 | (define char-set:empty (char-set)) |