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2b474353 UD |
1 | /* Mapping tables for EUC-JP handling. |
2 | Copyright (C) 1998 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. | |
5 | ||
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. | |
10 | ||
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. | |
15 | ||
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. */ | |
20 | ||
2b474353 | 21 | #include <stdint.h> |
8619129f | 22 | #include <gconv.h> |
2b474353 UD |
23 | #include <jis0201.h> |
24 | #include <jis0208.h> | |
25 | #include <jis0212.h> | |
26 | ||
8619129f | 27 | /* Definitions used in the body of the `gconv' function. */ |
9b26f5c4 | 28 | #define CHARSET_NAME "EUC-JP//" |
8619129f UD |
29 | #define FROM_LOOP from_euc_jp |
30 | #define TO_LOOP to_euc_jp | |
31 | #define DEFINE_INIT 1 | |
32 | #define DEFINE_FINI 1 | |
33 | #define MIN_NEEDED_FROM 1 | |
34 | #define MAX_NEEDED_FROM 3 | |
35 | #define MIN_NEEDED_TO 4 | |
36 | ||
37 | ||
38 | /* First define the conversion function from EUC-JP 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; \ | |
46 | \ | |
47 | if (ch <= 0x7f) \ | |
48 | ++inptr; \ | |
49 | else if ((ch <= 0xa0 || ch > 0xfe) && ch != 0x8e && ch != 0x8f) \ | |
50 | { \ | |
51 | /* This is illegal. */ \ | |
52 | result = GCONV_ILLEGAL_INPUT; \ | |
53 | break; \ | |
54 | } \ | |
55 | else \ | |
56 | { \ | |
57 | /* Two or more byte character. First test whether the next \ | |
58 | character is also available. */ \ | |
59 | int ch2; \ | |
60 | \ | |
61 | if (NEED_LENGTH_TEST && inptr + 1 >= inend) \ | |
62 | { \ | |
63 | /* The second character is not available. Store the \ | |
64 | intermediate result. */ \ | |
65 | result = GCONV_INCOMPLETE_INPUT; \ | |
66 | break; \ | |
67 | } \ | |
68 | \ | |
69 | ch2 = inptr[1]; \ | |
70 | \ | |
71 | /* All second bytes of a multibyte character must be >= 0xa1. */ \ | |
72 | if (ch2 < 0xa1) \ | |
73 | { \ | |
74 | /* This is an illegal character. */ \ | |
75 | result = GCONV_ILLEGAL_INPUT; \ | |
76 | break; \ | |
77 | } \ | |
78 | \ | |
79 | if (ch == 0x8e) \ | |
80 | { \ | |
81 | /* This is code set 2: half-width katakana. */ \ | |
82 | ch = jisx0201_to_ucs4 (ch2); \ | |
83 | inptr += 2; \ | |
84 | } \ | |
85 | else \ | |
86 | { \ | |
87 | const unsigned char *endp; \ | |
88 | \ | |
89 | if (ch == 0x8f) \ | |
90 | { \ | |
91 | /* This is code set 3: JIS X 0212-1990. */ \ | |
92 | endp = inptr + 1; \ | |
93 | \ | |
94 | ch = jisx0212_to_ucs4 (&endp, \ | |
95 | NEED_LENGTH_TEST ? inend - endp : 2, \ | |
96 | 0x80); \ | |
97 | } \ | |
98 | else \ | |
99 | { \ | |
100 | /* This is code set 1: JIS X 0208. */ \ | |
101 | endp = inptr; \ | |
102 | \ | |
103 | ch = jisx0208_to_ucs4 (&endp, \ | |
104 | NEED_LENGTH_TEST ? inend - inptr : 2, \ | |
105 | 0x80); \ | |
106 | } \ | |
107 | \ | |
108 | if (NEED_LENGTH_TEST && ch == 0) \ | |
109 | { \ | |
110 | /* Not enough input available. */ \ | |
111 | result = GCONV_INCOMPLETE_INPUT; \ | |
112 | break; \ | |
113 | } \ | |
114 | if (ch == UNKNOWN_10646_CHAR) \ | |
115 | { \ | |
116 | /* Illegal character. */ \ | |
117 | result = GCONV_ILLEGAL_INPUT; \ | |
118 | break; \ | |
119 | } \ | |
120 | inptr = endp; \ | |
121 | } \ | |
122 | } \ | |
123 | \ | |
124 | *((uint32_t *) outptr)++ = ch; \ | |
125 | } | |
126 | #include <iconv/loop.c> | |
127 | ||
128 | ||
129 | /* Next, define the other direction. */ | |
130 | #define MIN_NEEDED_INPUT MIN_NEEDED_TO | |
131 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM | |
132 | #define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM | |
133 | #define LOOPFCT TO_LOOP | |
134 | #define BODY \ | |
135 | { \ | |
136 | uint32_t ch = *((uint32_t *) inptr); \ | |
137 | \ | |
138 | if (ch <= 0x7f) \ | |
139 | /* It's plain ASCII. */ \ | |
140 | *outptr++ = ch; \ | |
141 | else \ | |
142 | { \ | |
143 | /* Try the JIS character sets. */ \ | |
144 | size_t found; \ | |
145 | \ | |
146 | /* See whether we have room for at least two characters. */ \ | |
147 | if (NEED_LENGTH_TEST && outptr + 1 >= outend) \ | |
148 | { \ | |
149 | result = GCONV_FULL_OUTPUT; \ | |
150 | break; \ | |
151 | } \ | |
152 | \ | |
153 | found = ucs4_to_jisx0201 (ch, outptr + 1); \ | |
154 | if (found != UNKNOWN_10646_CHAR) \ | |
155 | { \ | |
156 | /* Yes, it's a JIS 0201 character. Store the shift byte. */ \ | |
157 | *outptr = 0x8e; \ | |
158 | outptr += 2; \ | |
159 | } \ | |
160 | else \ | |
161 | { \ | |
162 | /* No JIS 0201 character. */ \ | |
163 | found = ucs4_to_jisx0208 (ch, outptr, 2); \ | |
164 | /* Please note that we always have enough room for the output. */ \ | |
165 | if (found != UNKNOWN_10646_CHAR) \ | |
166 | { \ | |
167 | /* It's a JIS 0208 character, adjust it for EUC-JP. */ \ | |
168 | *outptr++ += 0x80; \ | |
169 | *outptr++ += 0x80; \ | |
170 | } \ | |
171 | else \ | |
172 | { \ | |
173 | /* No JIS 0208 character. */ \ | |
174 | found = ucs4_to_jisx0212 (ch, outptr + 1, \ | |
175 | (NEED_LENGTH_TEST \ | |
176 | ? outend - outptr - 1 : 2)); \ | |
177 | \ | |
178 | if (found == 0) \ | |
179 | { \ | |
180 | /* We ran out of space. */ \ | |
181 | result = GCONV_FULL_OUTPUT; \ | |
182 | break; \ | |
183 | } \ | |
184 | else if (found != UNKNOWN_10646_CHAR) \ | |
185 | { \ | |
186 | /* It's a JIS 0212 character, adjust it for EUC-JP. */ \ | |
187 | *outptr++ = 0x8f; \ | |
188 | *outptr++ += 0x80; \ | |
189 | *outptr++ += 0x80; \ | |
190 | } \ | |
191 | else \ | |
192 | { \ | |
193 | /* Illegal character. */ \ | |
194 | result = GCONV_ILLEGAL_INPUT; \ | |
195 | break; \ | |
196 | } \ | |
197 | } \ | |
198 | } \ | |
199 | } \ | |
200 | \ | |
201 | inptr += 4; \ | |
202 | } | |
203 | #include <iconv/loop.c> | |
204 | ||
205 | ||
206 | /* Now define the toplevel functions. */ | |
207 | #include <iconv/skeleton.c> |