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3b7caeac | 1 | /* Conversion from and to IBM932. |
5d32be9a | 2 | Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc. |
3b7caeac UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Masahide Washizawa <washi@jp.ibm.com>, 2000. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
3b7caeac UD |
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 | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
3b7caeac | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
3b7caeac | 19 | |
e438a468 UD |
20 | #include <dlfcn.h> |
21 | #include <stdint.h> | |
f9ad060c | 22 | #include <stdbool.h> |
3b7caeac UD |
23 | #include "ibm932.h" |
24 | ||
3b7caeac | 25 | #define FROM 0 |
db2d05f9 | 26 | #define TO 1 |
3b7caeac UD |
27 | |
28 | /* Definitions used in the body of the `gconv' function. */ | |
29 | #define CHARSET_NAME "IBM932//" | |
30 | #define FROM_LOOP from_ibm932 | |
31 | #define TO_LOOP to_ibm932 | |
32 | ||
33 | /* Definitions of initialization and destructor function. */ | |
34 | #define DEFINE_INIT 1 | |
35 | #define DEFINE_FINI 1 | |
36 | ||
37 | #define MIN_NEEDED_FROM 1 | |
38 | #define MAX_NEEDED_FROM 2 | |
39 | #define MIN_NEEDED_TO 4 | |
40 | ||
41 | /* First, define the conversion function from IBM-932 to UCS4. */ | |
42 | #define MIN_NEEDED_INPUT MIN_NEEDED_FROM | |
43 | #define MAX_NEEDED_INPUT MAX_NEEDED_FROM | |
44 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO | |
45 | #define LOOPFCT FROM_LOOP | |
46 | #define BODY \ | |
47 | { \ | |
3b7caeac UD |
48 | const struct gap *rp2 = __ibm932db_to_ucs4_idx; \ |
49 | uint32_t ch = *inptr; \ | |
50 | uint32_t res; \ | |
51 | \ | |
f9ad060c UD |
52 | if (__builtin_expect (ch == 0x80, 0) \ |
53 | || __builtin_expect (ch == 0xa0, 0) \ | |
54 | || __builtin_expect (ch == 0xfd, 0) \ | |
55 | || __builtin_expect (ch == 0xfe, 0) \ | |
56 | || __builtin_expect (ch == 0xff, 0)) \ | |
3b7caeac UD |
57 | { \ |
58 | /* This is an illegal character. */ \ | |
e438a468 | 59 | STANDARD_FROM_LOOP_ERR_HANDLER (1); \ |
3b7caeac UD |
60 | } \ |
61 | \ | |
62 | /* Use the IBM932 table for single byte. */ \ | |
f9ad060c UD |
63 | res = __ibm932sb_to_ucs4[ch]; \ |
64 | if (__builtin_expect (res == 0, 0) && ch != 0) \ | |
3b7caeac | 65 | { \ |
3b7caeac UD |
66 | /* Use the IBM932 table for double byte. */ \ |
67 | if (__builtin_expect (inptr + 1 >= inend, 0)) \ | |
68 | { \ | |
69 | /* The second character is not available. \ | |
70 | Store the intermediate result. */ \ | |
71 | result = __GCONV_INCOMPLETE_INPUT; \ | |
72 | break; \ | |
73 | } \ | |
74 | \ | |
75 | ch = (ch * 0x100) + inptr[1]; \ | |
76 | while (ch > rp2->end) \ | |
77 | ++rp2; \ | |
78 | \ | |
79 | if (__builtin_expect (rp2 == NULL, 0) \ | |
80 | || __builtin_expect (ch < rp2->start, 0) \ | |
81 | || (res = __ibm932db_to_ucs4[ch + rp2->idx], \ | |
82 | __builtin_expect (res, '\1') == 0 && ch !=0)) \ | |
83 | { \ | |
84 | /* This is an illegal character. */ \ | |
e438a468 | 85 | STANDARD_FROM_LOOP_ERR_HANDLER (2); \ |
3b7caeac UD |
86 | } \ |
87 | else \ | |
88 | { \ | |
89 | put32 (outptr, res); \ | |
90 | outptr += 4; \ | |
91 | inptr += 2; \ | |
92 | } \ | |
93 | } \ | |
94 | else \ | |
95 | { \ | |
15627a21 | 96 | if (res == 0xa5) \ |
3b7caeac UD |
97 | res = 0x5c; \ |
98 | else if (res == 0x203e) \ | |
99 | res = 0x7e; \ | |
3b7caeac UD |
100 | put32 (outptr, res); \ |
101 | outptr += 4; \ | |
102 | inptr++; \ | |
103 | } \ | |
104 | } | |
105 | #define LOOP_NEED_FLAGS | |
f9ad060c UD |
106 | #define ONEBYTE_BODY \ |
107 | { \ | |
108 | if (c == 0x80 || c == 0xa0 || c >= 0xfd) \ | |
109 | return WEOF; \ | |
110 | uint32_t res = __ibm932sb_to_ucs4[c]; \ | |
111 | if (res == 0 && c != 0) \ | |
112 | return WEOF; \ | |
15627a21 | 113 | if (res == 0xa5) \ |
f9ad060c UD |
114 | res = 0x5c; \ |
115 | else if (res == 0x203e) \ | |
116 | res = 0x7e; \ | |
f9ad060c UD |
117 | return res; \ |
118 | } | |
3b7caeac UD |
119 | #include <iconv/loop.c> |
120 | ||
121 | /* Next, define the other direction. */ | |
122 | #define MIN_NEEDED_INPUT MIN_NEEDED_TO | |
123 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM | |
124 | #define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM | |
125 | #define LOOPFCT TO_LOOP | |
126 | #define BODY \ | |
127 | { \ | |
128 | const struct gap *rp = __ucs4_to_ibm932sb_idx; \ | |
129 | unsigned char sc; \ | |
601d2942 | 130 | uint32_t ch = get32 (inptr); \ |
f9ad060c | 131 | bool found = true; \ |
3b7caeac UD |
132 | uint32_t i; \ |
133 | uint32_t low; \ | |
134 | uint32_t high; \ | |
135 | uint16_t pccode; \ | |
136 | \ | |
db2d05f9 | 137 | if (__builtin_expect (ch >= 0xffff, 0)) \ |
601d2942 UD |
138 | { \ |
139 | UNICODE_TAG_HANDLER (ch, 4); \ | |
3b7caeac | 140 | rp = NULL; \ |
601d2942 | 141 | } \ |
3b7caeac UD |
142 | else \ |
143 | while (ch > rp->end) \ | |
144 | ++rp; \ | |
145 | \ | |
146 | /* Use the UCS4 table for single byte. */ \ | |
147 | if (__builtin_expect (rp == NULL, 0) \ | |
148 | || __builtin_expect (ch < rp->start, 0) \ | |
149 | || (sc = __ucs4_to_ibm932sb[ch + rp->idx], \ | |
150 | __builtin_expect (sc, '\1') == '\0' && ch != L'\0')) \ | |
151 | { \ | |
152 | \ | |
153 | /* Use the UCS4 table for double byte. */ \ | |
f9ad060c | 154 | found = false; \ |
3b7caeac UD |
155 | low = 0; \ |
156 | high = (sizeof (__ucs4_to_ibm932db) >> 1) \ | |
157 | / sizeof (__ucs4_to_ibm932db[0][FROM]); \ | |
158 | pccode = ch; \ | |
5d32be9a UD |
159 | if (__builtin_expect (rp != NULL, 1)) \ |
160 | while (low < high) \ | |
161 | { \ | |
162 | i = (low + high) >> 1; \ | |
163 | if (pccode < __ucs4_to_ibm932db[i][FROM]) \ | |
164 | high = i; \ | |
165 | else if (pccode > __ucs4_to_ibm932db[i][FROM]) \ | |
166 | low = i + 1; \ | |
167 | else \ | |
168 | { \ | |
169 | pccode = __ucs4_to_ibm932db[i][TO]; \ | |
170 | found = true; \ | |
171 | break; \ | |
172 | } \ | |
173 | } \ | |
601d2942 UD |
174 | if (found) \ |
175 | { \ | |
176 | if (__builtin_expect (outptr + 2 > outend, 0)) \ | |
177 | { \ | |
178 | result = __GCONV_FULL_OUTPUT; \ | |
179 | break; \ | |
180 | } \ | |
181 | *outptr++ = pccode >> 8 & 0xff; \ | |
182 | *outptr++ = pccode & 0xff; \ | |
183 | } \ | |
184 | else \ | |
185 | { \ | |
186 | /* This is an illegal character. */ \ | |
e438a468 | 187 | STANDARD_TO_LOOP_ERR_HANDLER (4); \ |
601d2942 | 188 | } \ |
3b7caeac UD |
189 | } \ |
190 | else \ | |
191 | { \ | |
192 | if (__builtin_expect (outptr + 1 > outend, 0)) \ | |
193 | { \ | |
194 | result = __GCONV_FULL_OUTPUT; \ | |
195 | break; \ | |
196 | } \ | |
197 | if (ch == 0x5c) \ | |
198 | *outptr++ = 0x5c; \ | |
199 | else if (ch == 0x7e) \ | |
200 | *outptr++ = 0x7e; \ | |
201 | else \ | |
202 | *outptr++ = sc; \ | |
203 | } \ | |
204 | \ | |
601d2942 UD |
205 | /* Now that we wrote the output increment the input pointer. */ \ |
206 | inptr += 4; \ | |
3b7caeac UD |
207 | } |
208 | #define LOOP_NEED_FLAGS | |
209 | #include <iconv/loop.c> | |
210 | ||
211 | /* Now define the toplevel functions. */ | |
212 | #include <iconv/skeleton.c> |