/usr/share/gauche-0.9/0.9.1/lib/srfi-14/query.scm is in gauche 0.9.1-5.
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;;; srfi-14/query - character set (querying contents)
;;;
;;; Copyright (c) 2000-2010 Shiro Kawai <shiro@acm.org>
;;;
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;;
;;; 1. Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;;
;;; 2. Redistributions in binary form must reproduce the above copyright
;;; notice, this list of conditions and the following disclaimer in the
;;; documentation and/or other materials provided with the distribution.
;;;
;;; 3. Neither the name of the authors nor the names of its contributors
;;; may be used to endorse or promote products derived from this
;;; software without specific prior written permission.
;;;
;;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
;;; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
;;; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
;;; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
;;; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
;;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
;;; TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
;;; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
;;; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;;
;; Say `(use srfi-14)' and this file is autoloaded on demand.
(select-module srfi-14)
(define (char-set-size cs)
(let ((count 0))
(for-each (lambda (range)
(set! count (+ count (- (cdr range) (car range)) 1)))
(%char-set-ranges cs))
count))
(define (char-set-count pred cs)
(char-set-fold (lambda (c r) (if (pred c) (+ r 1) r)) 0 cs))
(define (char-set->list cs)
(char-set-fold cons '() cs))
(define (char-set->string cs)
(list->string (char-set-fold cons '() cs)))
;; char-set-contains? : native
(define (char-set-every pred cs)
(let loop ((cursor (char-set-cursor cs)))
(cond ((end-of-char-set? cursor))
((pred (char-set-ref cs cursor))
(loop (char-set-cursor-next cs cursor)))
(else #f))))
(define (char-set-any pred cs)
(let loop ((cursor (char-set-cursor cs)))
(cond ((end-of-char-set? cursor) #f)
((pred (char-set-ref cs cursor)) #t)
(else (loop (char-set-cursor-next cs cursor))))))
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