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comparison lib/unigbrk/u8-grapheme-next.c @ 14076:bf75753bb6d8

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unigbrk: New modules for grapheme clusters. New module 'u8-grapheme-len'. * modules/unigbrk/u8-grapheme-len: New file. * modules/unigbrk/u8-grapheme-len-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u8-grapheme-len.c: New file. * tests/unigbrk/test-u8-grapheme-len.c: New file. New module 'u16-grapheme-len'. * modules/unigbrk/u16-grapheme-len: New file. * modules/unigbrk/u16-grapheme-len-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u16-grapheme-len.c: New file. * tests/unigbrk/test-u16-grapheme-len.c: New file. New module 'u32-grapheme-len'. * modules/unigbrk/u32-grapheme-len: New file. * modules/unigbrk/u32-grapheme-len-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u32-grapheme-len.c: New file. * tests/unigbrk/test-u32-grapheme-len.c: New file. New module 'u8-grapheme-next'. * modules/unigbrk/u8-grapheme-next: New file. * modules/unigbrk/u8-grapheme-next-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u8-grapheme-next.c: New file. * tests/unigbrk/test-u8-grapheme-next.c: New file. New module 'u16-grapheme-next'. * modules/unigbrk/u16-grapheme-next: New file. * modules/unigbrk/u16-grapheme-next-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u16-grapheme-next.c: New file. * tests/unigbrk/test-u16-grapheme-next.c: New file. New module 'u32-grapheme-next'. * modules/unigbrk/u32-grapheme-next: New file. * modules/unigbrk/u32-grapheme-next-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u32-grapheme-next.c: New file. * tests/unigbrk/test-u32-grapheme-next.c: New file. New module 'u8-grapheme-prev'. * modules/unigbrk/u8-grapheme-prev: New file. * modules/unigbrk/u8-grapheme-prev-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u8-grapheme-prev.c: New file. * tests/unigbrk/test-u8-grapheme-prev.c: New file. New module 'u16-grapheme-prev'. * modules/unigbrk/u16-grapheme-prev: New file. * modules/unigbrk/u16-grapheme-prev-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u16-grapheme-prev.c: New file. * tests/unigbrk/test-u16-grapheme-prev.c: New file. New module 'u32-grapheme-prev'. * modules/unigbrk/u32-grapheme-prev: New file. * modules/unigbrk/u32-grapheme-prev-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u32-grapheme-prev.c: New file. * tests/unigbrk/test-u32-grapheme-prev.c: New file. New module 'u8-grapheme-breaks'. * modules/unigbrk/u8-grapheme-breaks: New file. * modules/unigbrk/u8-grapheme-breaks-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u8-grapheme-breaks.c: New file. * tests/unigbrk/test-u8-grapheme-breaks.c: New file. New module 'u16-grapheme-breaks'. * modules/unigbrk/u16-grapheme-breaks: New file. * modules/unigbrk/u16-grapheme-breaks-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u16-grapheme-breaks.c: New file. * tests/unigbrk/test-u16-grapheme-breaks.c: New file. New module 'u32-grapheme-breaks'. * modules/unigbrk/u32-grapheme-breaks: New file. * modules/unigbrk/u32-grapheme-breaks-tests: New file. * lib/unigbrk.in.h: Add prototype for new function. * lib/unigbrk/u32-grapheme-breaks.c: New file. * tests/unigbrk/test-u32-grapheme-breaks.c: New file. New module 'ulc-grapheme-breaks'. * modules/unigbrk/ulc-grapheme-breaks: New file. * modules/unigbrk/ulc-grapheme-breaks-tests: New file. * m4/locale-ar.m4: New file. * lib/unigbrk/ulc-grapheme-breaks.c: New file. * tests/unigbrk/test-ulc-grapheme-breaks.c: New file. * tests/unigbrk/test-ulc-grapheme-breaks.sh: New file.
author Ben Pfaff <blp@cs.stanford.edu>
date Sat, 01 Jan 2011 08:47:34 -0800
parents
children 97fc9a21a8fb
comparison
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14075:ca165ba0f722 14076:bf75753bb6d8
1 /* Next grapheme cluster function.
2 Copyright (C) 2010 Free Software Foundation, Inc.
3 Written by Ben Pfaff <blp@cs.stanford.edu>, 2010.
4
5 This program is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Lesser General Public License as published
7 by the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #include <config.h>
19
20 /* Specification. */
21 #include "unigbrk.h"
22
23 #include "unistr.h"
24
25 const uint8_t *
26 u8_grapheme_next (const uint8_t *s, const uint8_t *end)
27 {
28 ucs4_t prev;
29 int mblen;
30
31 if (s == end)
32 return NULL;
33
34 for (s += u8_mbtouc (&prev, s, end - s); s != end; s += mblen)
35 {
36 ucs4_t next;
37
38 mblen = u8_mbtouc (&next, s, end - s);
39 if (uc_is_grapheme_cluster_break (prev, next))
40 break;
41
42 prev = next;
43 }
44
45 return s;
46 }