| 460b9539 |
1 | /* |
| 2 | * This file is part of DisOrder |
| 3 | * Copyright (C) 2004, 2005 Richard Kettlewell |
| 4 | * |
| 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. |
| 9 | * |
| 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. |
| 14 | * |
| 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 |
| 18 | * USA |
| 19 | */ |
| 20 | #ifndef UTF8_H |
| 21 | #define UTF8_H |
| 22 | |
| 23 | #define PARSE_UTF8(S,C,E) do { \ |
| 24 | if((unsigned char)*S < 0x80) \ |
| 25 | C = *S++; \ |
| 26 | else if((unsigned char)*S <= 0xDF) { \ |
| 27 | C = (*S++ & 0x1F) << 6; \ |
| 28 | if((*S & 0xC0) != 0x80) { E; } \ |
| 29 | C |= (*S++ & 0x3F); \ |
| 30 | if(C < 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; } \ |
| 36 | C |= (*S++ & 0x3F); \ |
| 37 | if(C < 0x800 \ |
| 38 | || (C >= 0xD800 && C <= 0xDFFF)) { \ |
| 39 | E; \ |
| 40 | } \ |
| 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; } \ |
| 48 | C |= (*S++ & 0x3F); \ |
| 49 | if(C < 0x10000 || C > 0x10FFFF) { E; } \ |
| 50 | } else { \ |
| 51 | E; \ |
| 52 | } \ |
| 53 | } while(0) |
| 54 | |
| 55 | int validutf8(const char *s); |
| 56 | /* return nonzero if S is a valid UTF-8 sequence, else false */ |
| 57 | |
| 58 | #endif /* UTF8_h */ |
| 59 | |
| 60 | /* |
| 61 | Local Variables: |
| 62 | c-basic-offset:2 |
| 63 | comment-column:40 |
| 64 | End: |
| 65 | */ |
~mdw / disorder / blame