105 lines
2.3 KiB
Scheme
105 lines
2.3 KiB
Scheme
;;; unicode.scm --- The R6RS Unicode library
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;; Copyright (C) 2010 Free Software Foundation, Inc.
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;;
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;; This library is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU Lesser General Public
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;; License as published by the Free Software Foundation; either
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;; version 3 of the License, or (at your option) any later version.
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;;
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;; This library is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; Lesser General Public License for more details.
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;;
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;; You should have received a copy of the GNU Lesser General Public
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;; License along with this library; if not, write to the Free Software
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;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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(library (rnrs unicode (6))
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(export char-upcase
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char-downcase
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char-titlecase
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char-foldcase
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char-ci=?
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char-ci<?
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char-ci>?
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char-ci<=?
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char-ci>=?
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char-alphabetic?
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char-numeric?
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char-whitespace?
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char-upper-case?
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char-lower-case?
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char-title-case?
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char-general-category
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string-upcase
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string-downcase
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string-titlecase
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string-foldcase
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string-ci=?
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string-ci<?
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string-ci>?
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string-ci<=?
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string-ci>=?
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string-normalize-nfd
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string-normalize-nfkd
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string-normalize-nfc
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string-normalize-nfkc)
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(import (only (guile) char-upcase
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char-downcase
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char-titlecase
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char-ci=?
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char-ci<?
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char-ci>?
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char-ci<=?
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char-ci>=?
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char-alphabetic?
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char-numeric?
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char-whitespace?
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char-upper-case?
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char-lower-case?
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char-set-contains?
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char-set:title-case
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char-general-category
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char-upcase
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char-downcase
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char-titlecase
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string-upcase
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string-downcase
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string-titlecase
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string-ci=?
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string-ci<?
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string-ci>?
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string-ci<=?
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string-ci>=?
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string-normalize-nfd
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string-normalize-nfkd
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string-normalize-nfc
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string-normalize-nfkc)
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(rnrs base (6)))
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(define (char-foldcase char)
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(if (or (eqv? char #\460) (eqv? char #\461))
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char (char-downcase (char-upcase char))))
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(define (char-title-case? char) (char-set-contains? char-set:title-case char))
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(define (string-foldcase str) (string-downcase (string-upcase str)))
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)
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