Mercurial > gnulib
view lib/unigbrk/u16-grapheme-next.c @ 40057:b06060465f09
maint: Run 'make update-copyright'
author | Paul Eggert <eggert@cs.ucla.edu> |
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date | Tue, 01 Jan 2019 00:25:11 +0100 |
parents | 10eb9086bea0 |
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/* Next grapheme cluster function. Copyright (C) 2010-2019 Free Software Foundation, Inc. Written by Ben Pfaff <blp@cs.stanford.edu>, 2010. This program 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 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include "unigbrk.h" #include "unistr.h" const uint16_t * u16_grapheme_next (const uint16_t *s, const uint16_t *end) { ucs4_t prev; int mblen; if (s == end) return NULL; for (s += u16_mbtouc (&prev, s, end - s); s != end; s += mblen) { ucs4_t next; mblen = u16_mbtouc (&next, s, end - s); if (uc_is_grapheme_break (prev, next)) break; prev = next; } return s; }