From 3590c846d4c2febbc05b4ad6b14a06edc549e453 Mon Sep 17 00:00:00 2001 From: "Manuel A. Fernandez Montecelo" Date: Fri, 27 May 2016 14:35:16 +0100 Subject: Imported Upstream version 0.9.6+really0.9.6 --- lib/unigbrk/u16-grapheme-next.c | 46 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 lib/unigbrk/u16-grapheme-next.c (limited to 'lib/unigbrk/u16-grapheme-next.c') diff --git a/lib/unigbrk/u16-grapheme-next.c b/lib/unigbrk/u16-grapheme-next.c new file mode 100644 index 0000000..e1fc8e0 --- /dev/null +++ b/lib/unigbrk/u16-grapheme-next.c @@ -0,0 +1,46 @@ +/* Next grapheme cluster function. + Copyright (C) 2010-2015 Free Software Foundation, Inc. + Written by Ben Pfaff , 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 . */ + +#include + +/* 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; +} -- cgit v1.2.3