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1 | /* Conversion to and from ISO 11548-1. |
2 | Copyright (C) 1997-1999, 2000-2005 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997, | |
5 | Samuel Thibault <samuel.thibault@ens-lyon.org>, 2005. | |
6 | ||
7 | The GNU C Library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Lesser General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | The GNU C Library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
18 | License along with the GNU C Library; if not, write to the Free | |
19 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
20 | 02111-1307 USA. */ | |
21 | ||
22 | #include <dlfcn.h> | |
23 | #include <stdint.h> | |
24 | ||
25 | /* Definitions used in the body of the `gconv' function. */ | |
26 | #define CHARSET_NAME "ISO_11548-1//" | |
27 | #define FROM_LOOP from_iso11548_1 | |
28 | #define TO_LOOP to_iso11548_1 | |
29 | #define DEFINE_INIT 1 | |
30 | #define DEFINE_FINI 1 | |
31 | #define MIN_NEEDED_FROM 1 | |
32 | #define MIN_NEEDED_TO 4 | |
33 | ||
34 | #define BRAILLE_UCS_BASE 0x2800 | |
35 | ||
36 | /* First define the conversion function from ISO 11548-1 to UCS4. */ | |
37 | #define MIN_NEEDED_INPUT MIN_NEEDED_FROM | |
38 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO | |
39 | #define LOOPFCT FROM_LOOP | |
40 | #define BODY \ | |
41 | *((uint32_t *) outptr) = BRAILLE_UCS_BASE | (*inptr++); \ | |
42 | outptr += sizeof (uint32_t); | |
43 | #define ONEBYTE_BODY \ | |
44 | { \ | |
45 | return BRAILLE_UCS_BASE | c; \ | |
46 | } | |
47 | #include <iconv/loop.c> | |
48 | ||
49 | ||
50 | /* Next, define the other direction. */ | |
51 | #define MIN_NEEDED_INPUT MIN_NEEDED_TO | |
52 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM | |
53 | #define LOOPFCT TO_LOOP | |
54 | #define BODY \ | |
55 | { \ | |
56 | uint32_t ch = *((const uint32_t *) inptr); \ | |
57 | if (__builtin_expect ((ch & 0xffffff00u) != BRAILLE_UCS_BASE, 0)) \ | |
58 | { \ | |
59 | UNICODE_TAG_HANDLER (ch, 4); \ | |
60 | \ | |
61 | /* We have an illegal character. */ \ | |
62 | STANDARD_TO_LOOP_ERR_HANDLER (4); \ | |
63 | } \ | |
64 | else \ | |
65 | *outptr++ = (unsigned char) (ch & 0xff); \ | |
66 | inptr += 4; \ | |
67 | } | |
68 | #define LOOP_NEED_FLAGS | |
69 | #include <iconv/loop.c> | |
70 | ||
71 | ||
72 | /* Now define the toplevel functions. */ | |
73 | #include <iconv/skeleton.c> |