1 /* Iterate over next character in UTF-8 string.
2 Copyright (C) 2002, 2006, 2009-2014 Free Software Foundation, Inc.
3 Written by Bruno Haible <bruno@clisp.org>, 2002.
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 "unistr.h"
22
23 const uint8_t *
u8_next(ucs4_t * puc,const uint8_t * s)24 u8_next (ucs4_t *puc, const uint8_t *s)
25 {
26 int count;
27
28 count = u8_strmbtouc (puc, s);
29 if (count > 0)
30 return s + count;
31 else
32 {
33 if (count < 0)
34 *puc = 0xfffd;
35 return NULL;
36 }
37 }
38