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;;; unicode.scm --- The R6RS Unicode library
;; Copyright (C) 2010 Free Software Foundation, Inc.
;;
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
;; License as published by the Free Software Foundation; either
;; version 3 of the License, or (at your option) any later version.
;;
;; This library 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
;; Lesser General Public License for more details.
;;
;; You should have received a copy of the GNU Lesser General Public
;; License along with this library; if not, write to the Free Software
;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(library (rnrs unicode (6))
(export char-upcase
char-downcase
char-titlecase
char-foldcase
char-ci=?
char-ci<?
char-ci>?
char-ci<=?
char-ci>=?
char-alphabetic?
char-numeric?
char-whitespace?
char-upper-case?
char-lower-case?
char-title-case?
char-general-category
string-upcase
string-downcase
string-titlecase
string-foldcase
string-ci=?
string-ci<?
string-ci>?
string-ci<=?
string-ci>=?
string-normalize-nfd
string-normalize-nfkd
string-normalize-nfc
string-normalize-nfkc)
(import (only (guile) char-upcase
char-downcase
char-titlecase
char-ci=?
char-ci<?
char-ci>?
char-ci<=?
char-ci>=?
char-alphabetic?
char-numeric?
char-whitespace?
char-upper-case?
char-lower-case?
char-set-contains?
char-set:title-case
char-general-category
char-upcase
char-downcase
char-titlecase
string-upcase
string-downcase
string-titlecase
string-ci=?
string-ci<?
string-ci>?
string-ci<=?
string-ci>=?
string-normalize-nfd
string-normalize-nfkd
string-normalize-nfc
string-normalize-nfkc)
(rnrs base (6)))
(define (char-foldcase char)
(if (or (eqv? char #\460) (eqv? char #\461))
char (char-downcase (char-upcase char))))
(define (char-title-case? char) (char-set-contains? char-set:title-case char))
(define (string-foldcase str) (string-downcase (string-upcase str)))
)
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