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- ;;; srfi-14.scm --- Character-set Library
-
- ;; Copyright (C) 2001, 2002 Free Software Foundation, Inc.
- ;;
- ;; This program is free software; you can redistribute it and/or
- ;; modify it under the terms of the GNU General Public License as
- ;; published by the Free Software Foundation; either version 2, or
- ;; (at your option) any later version.
- ;;
- ;; This program is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- ;; General Public License for more details.
- ;;
- ;; You should have received a copy of the GNU General Public License
- ;; along with this software; see the file COPYING. If not, write to
- ;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- ;; Boston, MA 02111-1307 USA
- ;;
- ;; As a special exception, the Free Software Foundation gives permission
- ;; for additional uses of the text contained in its release of GUILE.
- ;;
- ;; The exception is that, if you link the GUILE library with other files
- ;; to produce an executable, this does not by itself cause the
- ;; resulting executable to be covered by the GNU General Public License.
- ;; Your use of that executable is in no way restricted on account of
- ;; linking the GUILE library code into it.
- ;;
- ;; This exception does not however invalidate any other reasons why
- ;; the executable file might be covered by the GNU General Public License.
- ;;
- ;; This exception applies only to the code released by the
- ;; Free Software Foundation under the name GUILE. If you copy
- ;; code from other Free Software Foundation releases into a copy of
- ;; GUILE, as the General Public License permits, the exception does
- ;; not apply to the code that you add in this way. To avoid misleading
- ;; anyone as to the status of such modified files, you must delete
- ;; this exception notice from them.
- ;;
- ;; If you write modifications of your own for GUILE, it is your choice
- ;; whether to permit this exception to apply to your modifications.
- ;; If you do not wish that, delete this exception notice.
-
- ;;; Commentary:
-
- ;; This module is fully documented in the Guile Reference Manual.
-
- ;;; Code:
-
- (define-module (srfi srfi-14)
- :export (
- ;;; General procedures
- char-set?
- char-set=
- char-set<=
- char-set-hash
-
- ;;; Iterating over character sets
- char-set-cursor
- char-set-ref
- char-set-cursor-next
- end-of-char-set?
- char-set-fold
- char-set-unfold char-set-unfold!
- char-set-for-each
- char-set-map
-
- ;;; Creating character sets
- char-set-copy
- char-set
- list->char-set list->char-set!
- string->char-set string->char-set!
- char-set-filter char-set-filter!
- ucs-range->char-set ucs-range->char-set!
- ->char-set
-
- ;;; Querying character sets
- char-set-size
- char-set-count
- char-set->list
- char-set->string
- char-set-contains?
- char-set-every
- char-set-any
-
- ;;; Character set algebra
- char-set-adjoin char-set-adjoin!
- char-set-delete char-set-delete!
- char-set-complement
- char-set-union
- char-set-intersection
- char-set-difference
- char-set-xor
- char-set-diff+intersection
- char-set-complement!
- char-set-union!
- char-set-intersection!
- char-set-difference!
- char-set-xor!
- char-set-diff+intersection!
-
- ;;; Standard character sets
- char-set:lower-case
- char-set:upper-case
- char-set:title-case
- char-set:letter
- char-set:digit
- char-set:letter+digit
- char-set:graphic
- char-set:printing
- char-set:whitespace
- char-set:iso-control
- char-set:punctuation
- char-set:symbol
- char-set:hex-digit
- char-set:blank
- char-set:ascii
- char-set:empty
- char-set:full
- ))
-
- (cond-expand-provide (current-module) '(srfi-14))
-
- (load-extension "libguile-srfi-srfi-13-14-v-1" "scm_init_srfi_14")
-
- (define (->char-set x)
- (cond
- ((string? x) (string->char-set x))
- ((char? x) (char-set x))
- ((char-set? x) x)
- (else (error "invalid argument to `->char-set'"))))
-
- (define char-set:full (ucs-range->char-set 0 256))
-
- (define char-set:lower-case (char-set-filter char-lower-case? char-set:full))
-
- (define char-set:upper-case (char-set-filter char-upper-case? char-set:full))
-
- (define char-set:title-case (char-set))
-
- (define char-set:letter (char-set-union char-set:lower-case
- char-set:upper-case))
-
- (define char-set:digit (string->char-set "0123456789"))
-
- (define char-set:letter+digit
- (char-set-union char-set:letter char-set:digit))
-
- (define char-set:punctuation (string->char-set "!\"#%&'()*,-./:;?@[\\]_{}"))
-
- (define char-set:symbol (string->char-set "$+<=>^`|~"))
-
- (define char-set:whitespace (char-set #\space #\newline #\tab #\cr #\vt #\np))
-
- (define char-set:blank (char-set #\space #\tab))
-
- (define char-set:graphic
- (char-set-union char-set:letter+digit char-set:punctuation char-set:symbol))
-
- (define char-set:printing
- (char-set-union char-set:graphic char-set:whitespace))
-
- (define char-set:iso-control
- (char-set-adjoin
- (char-set-filter (lambda (ch) (< (char->integer ch) 31)) char-set:full)
- (integer->char 127)))
-
- (define char-set:hex-digit (string->char-set "0123456789abcdefABCDEF"))
-
- (define char-set:ascii
- (char-set-filter (lambda (ch) (< (char->integer ch) 128)) char-set:full))
-
- (define char-set:empty (char-set))
-
- ;;; srfi-14.scm ends here
-