blob: d547d7e46b125d9a7f4c8d740b45ff54bd801a81 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* Next grapheme cluster function.
Copyright (C) 2010-2015 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 <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include "unigbrk.h"
#include "unistr.h"
const uint32_t *
u32_grapheme_next (const uint32_t *s, const uint32_t *end)
{
ucs4_t prev;
if (s == end)
return NULL;
u32_mbtouc (&prev, s, end - s);
for (s++; s != end; s++)
{
ucs4_t next;
u32_mbtouc (&next, s, end - s);
if (uc_is_grapheme_break (prev, next))
break;
prev = next;
}
return s;
}
|