1/* Conversion to and from ISO 11548-1.
2 Copyright (C) 1997-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library 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
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <dlfcn.h>
20#include <stdint.h>
21
22/* Definitions used in the body of the `gconv' function. */
23#define CHARSET_NAME "ISO_11548-1//"
24#define FROM_LOOP from_iso11548_1
25#define TO_LOOP to_iso11548_1
26#define DEFINE_INIT 1
27#define DEFINE_FINI 1
28#define MIN_NEEDED_FROM 1
29#define MIN_NEEDED_TO 4
30#define ONE_DIRECTION 0
31
32#define BRAILLE_UCS_BASE 0x2800
33
34/* First define the conversion function from ISO 11548-1 to UCS4. */
35#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
36#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
37#define LOOPFCT FROM_LOOP
38#define BODY \
39 *((uint32_t *) outptr) = BRAILLE_UCS_BASE | (*inptr++); \
40 outptr += sizeof (uint32_t);
41#define ONEBYTE_BODY \
42 { \
43 return BRAILLE_UCS_BASE | c; \
44 }
45#include <iconv/loop.c>
46
47
48/* Next, define the other direction. */
49#define MIN_NEEDED_INPUT MIN_NEEDED_TO
50#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
51#define LOOPFCT TO_LOOP
52#define BODY \
53 { \
54 uint32_t ch = *((const uint32_t *) inptr); \
55 if (__glibc_unlikely ((ch & 0xffffff00u) != BRAILLE_UCS_BASE)) \
56 { \
57 UNICODE_TAG_HANDLER (ch, 4); \
58 \
59 /* We have an illegal character. */ \
60 STANDARD_TO_LOOP_ERR_HANDLER (4); \
61 } \
62 else \
63 *outptr++ = (unsigned char) (ch & 0xff); \
64 inptr += 4; \
65 }
66#define LOOP_NEED_FLAGS
67#include <iconv/loop.c>
68
69
70/* Now define the toplevel functions. */
71#include <iconv/skeleton.c>
72