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[glibc.git] / iconvdata / euc-cn.c
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1 /* Mapping tables for EUC-CN handling.
2 Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #include <dlfcn.h>
22 #include <gb2312.h>
23 #include <stdint.h>
25 /* Definitions used in the body of the `gconv' function. */
26 #define CHARSET_NAME "EUC-CN//"
27 #define FROM_LOOP from_euc_cn
28 #define TO_LOOP to_euc_cn
29 #define DEFINE_INIT 1
30 #define DEFINE_FINI 1
31 #define MIN_NEEDED_FROM 1
32 #define MAX_NEEDED_FROM 2
33 #define MIN_NEEDED_TO 4
36 /* First define the conversion function from EUC-CN to UCS4. */
37 #define MIN_NEEDED_INPUT MIN_NEEDED_FROM
38 #define MAX_NEEDED_INPUT MAX_NEEDED_FROM
39 #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
40 #define LOOPFCT FROM_LOOP
41 #define BODY \
42 { \
43 uint32_t ch = *inptr; \
45 if (ch <= 0x7f) \
46 ++inptr; \
47 else \
48 if ((__builtin_expect (ch, 0xa1) <= 0xa0 && ch != 0x8e && ch != 0x8f) \
49 || __builtin_expect (ch, 0xfe) > 0xfe) \
50 { \
51 /* This is illegal. */ \
52 if (! ignore_errors_p ()) \
53 { \
54 result = __GCONV_ILLEGAL_INPUT; \
55 break; \
56 } \
58 ++inptr; \
59 ++*irreversible; \
60 continue; \
61 } \
62 else \
63 { \
64 /* Two or more byte character. First test whether the \
65 next character is also available. */ \
66 const unsigned char *endp; \
68 if (__builtin_expect (inptr + 1 >= inend, 0)) \
69 { \
70 /* The second character is not available. Store \
71 the intermediate result. */ \
72 result = __GCONV_INCOMPLETE_INPUT; \
73 break; \
74 } \
76 ch = inptr[1]; \
78 /* All second bytes of a multibyte character must be >= 0xa1. */ \
79 if (__builtin_expect (ch, 0xa1) < 0xa1) \
80 { \
81 if (! ignore_errors_p ()) \
82 { \
83 /* This is an illegal character. */ \
84 result = __GCONV_ILLEGAL_INPUT; \
85 break; \
86 } \
88 ++inptr; \
89 ++*irreversible; \
90 continue; \
91 } \
93 /* This is code set 1: GB 2312-80. */ \
94 endp = inptr; \
96 ch = gb2312_to_ucs4 (&endp, 2, 0x80); \
97 if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR) \
98 { \
99 /* This is an illegal character. */ \
100 if (! ignore_errors_p ()) \
102 /* This is an illegal character. */ \
103 result = __GCONV_ILLEGAL_INPUT; \
104 break; \
107 inptr += 2; \
108 ++*irreversible; \
109 continue; \
112 inptr += 2; \
115 put32 (outptr, ch); \
116 outptr += 4; \
118 #define LOOP_NEED_FLAGS
119 #include <iconv/loop.c>
122 /* Next, define the other direction. */
123 #define MIN_NEEDED_INPUT MIN_NEEDED_TO
124 #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
125 #define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
126 #define LOOPFCT TO_LOOP
127 #define BODY \
129 uint32_t ch = get32 (inptr); \
131 if (ch <= L'\x7f') \
132 /* It's plain ASCII. */ \
133 *outptr++ = (unsigned char) ch; \
134 else \
136 size_t found; \
138 found = ucs4_to_gb2312 (ch, outptr, outend - outptr); \
139 if (__builtin_expect (found, 1) != 0) \
141 if (__builtin_expect (found, 0) == __UNKNOWN_10646_CHAR) \
143 /* Illegal character. */ \
144 STANDARD_ERR_HANDLER (4); \
147 /* It's a GB 2312 character, adjust it for EUC-CN. */ \
148 *outptr++ += 0x80; \
149 *outptr++ += 0x80; \
151 else \
153 /* We ran out of space. */ \
154 result = __GCONV_FULL_OUTPUT; \
155 break; \
158 inptr += 4; \
160 #define LOOP_NEED_FLAGS
161 #include <iconv/loop.c>
164 /* Now define the toplevel functions. */
165 #include <iconv/skeleton.c>