Mercurial > hg > xemacs-beta
comparison src/iso-wide.h @ 0:376386a54a3c r19-14
Import from CVS: tag r19-14
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 08:45:50 +0200 |
| parents | |
| children | 74fd4e045ea6 |
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| -1:000000000000 | 0:376386a54a3c |
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| 1 /* This file is part of XEmacs. | |
| 2 | |
| 3 XEmacs is free software; you can redistribute it and/or modify it | |
| 4 under the terms of the GNU General Public License as published by the | |
| 5 Free Software Foundation; either version 2, or (at your option) any | |
| 6 later version. | |
| 7 | |
| 8 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 9 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 10 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 11 for more details. | |
| 12 | |
| 13 You should have received a copy of the GNU General Public License | |
| 14 along with XEmacs; see the file COPYING. If not, write to | |
| 15 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 16 Boston, MA 02111-1307, USA. */ | |
| 17 | |
| 18 /* Synched up with: Not in FSF. */ | |
| 19 | |
| 20 #ifndef _XEMACS_ISO_WIDE_H | |
| 21 #define _XEMACS_ISO_WIDE_H | |
| 22 | |
| 23 /* The following macros are designed for SunOS 5.0 wide characters, | |
| 24 in which the single byte ISO Latin-1 character 1xxxxxxx are represented | |
| 25 | |
| 26 00110000 00000000 00000000 0xxxxxxx | |
| 27 | |
| 28 For wide character systems which maintain the numeric value of all | |
| 29 single-byte characters, IN_TABLE_DOMAIN can simply be defined | |
| 30 | |
| 31 (0 <= (c) && (c) <= 0xff) | |
| 32 | |
| 33 and no funky ISO_WIDE_TO_BYTE conversions are needed. */ | |
| 34 | |
| 35 /* Can't use isascii() because we want wide char argument */ | |
| 36 #define IS_ASCII(c) (0 <= (c) && (c) <= 0x7f) | |
| 37 | |
| 38 #define IS_ISO_WIDE(c) (0x30000000 <= (c) && (c) <= 0x3000007f) | |
| 39 #define IS_ISO_BYTE(c) (0x80 <= (c) && (c) <= 0xff) | |
| 40 | |
| 41 #define IN_TABLE_DOMAIN(c) (IS_ASCII (c) || IS_ISO_WIDE (c)) | |
| 42 | |
| 43 #define ISO_WIDE_TO_BYTE(c) ((c) & 0x0000007f | 0x80) | |
| 44 #define ISO_BYTE_TO_WIDE(c) ((c) & 0x7f | 0x30000000) | |
| 45 | |
| 46 #define WIDE_TO_BYTE(c) (IS_ISO_WIDE (c) ? ISO_WIDE_TO_BYTE (c) : (c)) | |
| 47 #define BYTE_TO_WIDE(c) (IS_ISO_BYTE (c) ? ISO_BYTE_TO_WIDE (c) : (c)) | |
| 48 | |
| 49 #endif /* _XEMACS_ISO_WIDE_H */ |