2 * This file is part of DisOrder
3 * Copyright (C) 2004, 2005 Richard Kettlewell
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 #define PARSE_UTF8(S,C,E) do { \
24 if((unsigned char)*S < 0x80) \
26 else if((unsigned char)*S <= 0xDF) { \
27 C = (*S++ & 0x1F) << 6; \
28 if((*S & 0xC0) != 0x80) { E; } \
31 } else if((unsigned char)*S <= 0xEF) { \
32 C = (*S++ & 0x0F) << 12; \
33 if((*S & 0xC0) != 0x80) { E; } \
34 C |= (*S++ & 0x3F) << 6; \
35 if((*S & 0xC0) != 0x80) { E; } \
38 || (C >= 0xD800 && C <= 0xDFFF)) { \
41 } else if((unsigned char)*S <= 0xF7) { \
42 C = (*S++ & 0x07) << 18; \
43 if((*S & 0xC0) != 0x80) { E; } \
44 C |= (*S++ & 0x3F) << 12; \
45 if((*S & 0xC0) != 0x80) { E; } \
46 C |= (*S++ & 0x3F) << 6; \
47 if((*S & 0xC0) != 0x80) { E; } \
49 if(C < 0x10000 || C > 0x10FFFF) { E; } \
55 int validutf8(const char *s);
56 /* return nonzero if S is a valid UTF-8 sequence, else false */