Signal temporary host lookup errors in nscd as such to the requester.
[glibc.git] / iconvdata / euc-tw.c
blobe6d3e3554d805ba4de83bcec03828e49975b12c0
1 /* Mapping tables for EUC-TW handling.
2 Copyright (C) 1998, 1999, 2000-2002, 2003, 2007
3 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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.
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.
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. */
22 #include <dlfcn.h>
23 #include <stdint.h>
24 #include <cns11643l1.h>
25 #include <cns11643.h>
27 /* Definitions used in the body of the `gconv' function. */
28 #define CHARSET_NAME "EUC-TW//"
29 #define FROM_LOOP from_euc_tw
30 #define TO_LOOP to_euc_tw
31 #define DEFINE_INIT 1
32 #define DEFINE_FINI 1
33 #define MIN_NEEDED_FROM 1
34 #define MAX_NEEDED_FROM 4
35 #define MIN_NEEDED_TO 4
38 /* First define the conversion function from EUC-TW to UCS4. */
39 #define MIN_NEEDED_INPUT MIN_NEEDED_FROM
40 #define MAX_NEEDED_INPUT MAX_NEEDED_FROM
41 #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
42 #define LOOPFCT FROM_LOOP
43 #define BODY \
44 { \
45 uint32_t ch = *inptr; \
47 if (ch <= 0x7f) \
48 /* Plain ASCII. */ \
49 ++inptr; \
50 else if ((ch <= 0xa0 || ch > 0xfe) && ch != 0x8e) \
51 { \
52 /* This is illegal. */ \
53 STANDARD_FROM_LOOP_ERR_HANDLER (1); \
54 } \
55 else \
56 { \
57 /* Two or more byte character. First test whether the next byte \
58 is also available. */ \
59 uint32_t ch2; \
61 if (inptr + 1 >= inend) \
62 { \
63 /* The second byte is not available. Store the intermediate \
64 result. */ \
65 result = __GCONV_INCOMPLETE_INPUT; \
66 break; \
67 } \
69 ch2 = *(inptr + 1); \
71 /* All second bytes of a multibyte character must be >= 0xa1. */ \
72 if (ch2 < 0xa1 || ch2 == 0xff) \
73 STANDARD_FROM_LOOP_ERR_HANDLER (1); \
75 if (ch == 0x8e) \
76 { \
77 /* This is code set 2: CNS 11643, planes 1 to 16. */ \
78 const unsigned char *endp = inptr + 1; \
80 ch = cns11643_to_ucs4 (&endp, inend - inptr - 1, 0x80); \
82 if (ch == 0) \
83 { \
84 /* The third or fourth byte is not available. Store \
85 the intermediate result. */ \
86 result = __GCONV_INCOMPLETE_INPUT; \
87 break; \
88 } \
90 if (ch == __UNKNOWN_10646_CHAR) \
91 /* Illegal input. */ \
92 STANDARD_FROM_LOOP_ERR_HANDLER (1); \
94 inptr += 4; \
95 } \
96 else \
97 { \
98 /* This is code set 1: CNS 11643, plane 1. */ \
99 const unsigned char *endp = inptr; \
101 ch = cns11643l1_to_ucs4 (&endp, inend - inptr, 0x80); \
102 /* Please note that we need not test for the missing input \
103 characters here anymore. */ \
104 if (ch == __UNKNOWN_10646_CHAR) \
105 /* Illegal input. */ \
106 STANDARD_FROM_LOOP_ERR_HANDLER (2); \
108 inptr += 2; \
112 put32 (outptr, ch); \
113 outptr += 4; \
115 #define LOOP_NEED_FLAGS
116 #define ONEBYTE_BODY \
118 if (c < 0x80) \
119 return c; \
120 else \
121 return WEOF; \
123 #include <iconv/loop.c>
126 /* Next, define the other direction. */
127 #define MIN_NEEDED_INPUT MIN_NEEDED_TO
128 #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
129 #define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
130 #define LOOPFCT TO_LOOP
131 #define BODY \
133 uint32_t ch = get32 (inptr); \
135 if (ch <= 0x7f) \
136 /* It's plain ASCII. */ \
137 *outptr++ = ch; \
138 else \
140 /* Try the CNS 11643 planes. */ \
141 size_t found; \
143 found = ucs4_to_cns11643l1 (ch, outptr, outend - outptr); \
144 if (__builtin_expect (found, 1) == 0) \
146 /* We ran out of space. */ \
147 result = __GCONV_FULL_OUTPUT; \
148 break; \
150 if (__builtin_expect (found, 1) != __UNKNOWN_10646_CHAR) \
152 /* It's a CNS 11643, plane 1 character, adjust it for EUC-TW. */ \
153 *outptr++ += 0x80; \
154 *outptr++ += 0x80; \
156 else \
158 /* No CNS 11643, plane 1 character. */ \
160 found = ucs4_to_cns11643 (ch, outptr + 1, outend - outptr - 1); \
161 if (__builtin_expect (found, 1) == 0) \
163 /* We ran out of space. */ \
164 result = __GCONV_FULL_OUTPUT; \
165 break; \
167 if (__builtin_expect (found, 0) == __UNKNOWN_10646_CHAR) \
169 UNICODE_TAG_HANDLER (ch, 4); \
171 /* Illegal character. */ \
172 STANDARD_TO_LOOP_ERR_HANDLER (4); \
175 /* It's a CNS 11643 character, adjust it for EUC-TW. */ \
176 *outptr++ = '\x8e'; \
177 *outptr++ += 0xa0; \
178 *outptr++ += 0x80; \
179 *outptr++ += 0x80; \
183 inptr += 4; \
185 #define LOOP_NEED_FLAGS
186 #include <iconv/loop.c>
189 /* Now define the toplevel functions. */
190 #include <iconv/skeleton.c>