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/cvs/rxvt-unicode/src/encoding.C
Revision: 1.9
Committed: Wed Mar 10 18:42:58 2004 UTC (20 years, 2 months ago) by pcg
Content type: text/plain
Branch: MAIN
CVS Tags: rel-2_2
Changes since 1.3: +28 -13 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #include "../config.h"
2
3 #include "encoding.h"
4
5 #include <cstdlib>
6 #include <cstring>
7
8 const struct n2cs {
9 const char *name;
10 codeset cs;
11 } n2cs[] = {
12 /* first one found is the normalized one */
13 { "ISO88591", CS_ISO8859_1 },
14 { "ISO8859PRIMARY", CS_ISO8859_1 }, // some stupid fonts use this (hi tigert)
15 { "ISO88592", CS_ISO8859_2 },
16 { "ISO88593", CS_ISO8859_3 },
17 { "ISO88594", CS_ISO8859_4 },
18 { "ISO88595", CS_ISO8859_5 },
19 { "ISO88596", CS_ISO8859_6 },
20 { "ISO88597", CS_ISO8859_7 },
21 { "ISO88598", CS_ISO8859_8 },
22 { "ISO88599", CS_ISO8859_9 },
23 { "ISO885910", CS_ISO8859_10 },
24 { "ISO885911", CS_ISO8859_11 },
25 { "ISO885913", CS_ISO8859_13 },
26 { "ISO885914", CS_ISO8859_14 },
27 { "ISO885915", CS_ISO8859_15 },
28 { "FCD885915", CS_ISO8859_15 },
29 { "ISO885916", CS_ISO8859_16 },
30
31 { "TIS620*", CS_ISO8859_11 }, // close enough
32
33 { "ISO10646*", CS_UNICODE },
34 { "UNICODE", CS_UNICODE },
35 { "UTF8", CS_UNICODE },
36
37 { "ASCII", CS_US_ASCII },
38 { "USASCII", CS_US_ASCII },
39 { "ANSIX341968", CS_US_ASCII },
40
41 { "KOI8R", CS_KOI8_R },
42 { "GOST1976874*", CS_KOI8_R },
43 { "KOI8RU", CS_KOI8_U },
44 { "KOI8U", CS_KOI8_U },
45
46 { "VISCII*", CS_VISCII },
47
48 { "JISX0201*", CS_JIS0201_1976_0 },
49 { "JISX0208*", CS_JIS0208_1983_0 }, // also wrongly matches -1990-0 (check Encode::JP)
50 { "JISX0212*", CS_JIS0212_1990_0 },
51 { "JISX0221*", CS_UNICODE },
52
53 { "KSC5601*", CS_KSC5601_1987_0 },
54 { "KSX1001*", CS_KSC5601_1987_0 },
55 { "KSC5700*", CS_UNICODE }, // unicode plus extensions
56
57 { "BIG5P*", CS_BIG5_PLUS },
58 { "BIG5ETEN*", CS_BIG5_EXT },
59 { "BIG5*", CS_BIG5 },
60 { "GB2312*", CS_GB2312_1980_0 },
61 { "GB6345*", CS_GB2312_1980_0 }, // slightly different to gb2312??
62 { "GB8565*", CS_GB2312_1980_0 }, // a superset of gb2312??
63 { "GB13000*", CS_UNICODE },
64 { "CNS1164319921", CS_CNS11643_1992_1 },
65 { "CNS1164319922", CS_CNS11643_1992_2 },
66 { "CNS1164319923", CS_CNS11643_1992_3 },
67 { "CNS1164319924", CS_CNS11643_1992_4 },
68 { "CNS1164319925", CS_CNS11643_1992_5 },
69 { "CNS1164319926", CS_CNS11643_1992_6 },
70 { "CNS1164319927", CS_CNS11643_1992_7 },
71 { "CNS116431992F", CS_CNS11643_1992_F },
72
73 { 0, CS_UNKNOWN }
74 };
75
76 static const char *
77 normalize_name (const char *name)
78 {
79 static char res[16];
80 char *r;
81
82 for (r = res; *name && r < res + 15; name++)
83 if ((*name >= '0' && *name <= '9')
84 || (*name >= 'A' && *name <= 'Z'))
85 *r++ = *name;
86 else if (*name >= 'a' && *name <= 'z')
87 *r++ = *name - ('a' - 'A');
88
89 *r = 0;
90
91 return res;
92 }
93
94 codeset
95 codeset_from_name (const char *name)
96 {
97 if (!name)
98 return CS_UNKNOWN;
99
100 name = normalize_name (name);
101
102 const struct n2cs *i = n2cs;
103
104 do {
105 int len = strlen (i->name);
106
107 if ((i->name[len - 1] == '*'
108 && !strncmp (name, i->name, len - 1))
109 || !strcmp (name, i->name))
110 return i->cs;
111
112 } while ((++i)->name);
113
114 return CS_UNKNOWN;
115 }
116
117 struct rxvt_codeset_conv_unknown : rxvt_codeset_conv {
118 uint32_t to_unicode (uint32_t enc) const { return NOCHAR; }
119 uint32_t from_unicode (uint32_t unicode) const { return NOCHAR; }
120 } rxvt_codeset_conv_unknown;
121
122 struct rxvt_codeset_conv_us_ascii : rxvt_codeset_conv {
123 uint32_t from_unicode (uint32_t unicode) const { return unicode <= 127 ? unicode : NOCHAR; }
124 } rxvt_codeset_conv_us_ascii;
125
126 struct rxvt_codeset_conv_unicode : rxvt_codeset_conv {
127 /* transparent */
128 } rxvt_codeset_conv_unicode;
129
130 struct rxvt_codeset_conv_unicode_16 : rxvt_codeset_conv {
131 uint32_t to_unicode (uint32_t enc) const { return enc; }
132 uint32_t from_unicode (uint32_t unicode) const { return unicode <= 65535 ? unicode : NOCHAR; }
133 } rxvt_codeset_conv_unicode_16;
134
135 #define ENCODING_DEFAULT
136
137 #include "table/iso8859_1.h"
138 #include "table/iso8859_15.h"
139
140 //#define ENCODING_EU
141
142 #include "table/iso8859_2.h"
143 #include "table/iso8859_3.h"
144 #include "table/iso8859_4.h"
145 #include "table/iso8859_5.h"
146 #include "table/iso8859_6.h"
147 #include "table/iso8859_7.h"
148 #include "table/iso8859_8.h"
149 #include "table/iso8859_9.h"
150 #include "table/iso8859_10.h"
151 #include "table/iso8859_11.h"
152 #include "table/iso8859_13.h"
153 #include "table/iso8859_14.h"
154 #include "table/iso8859_16.h"
155
156 #include "table/koi8_r.h"
157 #include "table/koi8_u.h"
158
159 //#define ENCODING_KR
160
161 #include "table/ksc5601_1987_0.h"
162
163 //#define ENCODING_CN
164
165 #include "table/gb2312_1980_0.h"
166 #include "table/big5.h"
167
168 //#define ENCODING_CN_EXT
169
170 #include "table/cns11643_1992_1.h"
171 #include "table/cns11643_1992_2.h"
172 #include "table/cns11643_1992_3.h"
173 #include "table/cns11643_1992_4.h"
174 #include "table/cns11643_1992_5.h"
175 #include "table/cns11643_1992_6.h"
176 #include "table/cns11643_1992_7.h"
177 #include "table/cns11643_1992_f.h"
178 #include "table/big5_ext.h"
179 #include "table/big5_plus.h"
180
181 //#define ENCODING_VN
182
183 #include "table/viscii.h"
184
185 //#define ENCODING_JP
186
187 #include "table/jis0201_1976_0.h"
188 #include "table/jis0208_1983_0.h"
189 #include "table/jis0212_1990_0.h"
190
191 //#define ENCODING_JP_EXT
192
193 #include "table/jis0213_1.h"
194 #include "table/jis0213_2.h"
195
196 // order must match table in encoding.h(!)
197 const rxvt_codeset_conv *rxvt_codeset[NUM_CODESETS] = {
198 &rxvt_codeset_conv_unknown,
199
200 &rxvt_codeset_conv_us_ascii,
201
202 &rxvt_codeset_conv_iso8859_1,
203 &rxvt_codeset_conv_iso8859_2,
204 &rxvt_codeset_conv_iso8859_3,
205 &rxvt_codeset_conv_iso8859_4,
206 &rxvt_codeset_conv_iso8859_5,
207 &rxvt_codeset_conv_iso8859_6,
208 &rxvt_codeset_conv_iso8859_7,
209 &rxvt_codeset_conv_iso8859_8,
210 &rxvt_codeset_conv_iso8859_9,
211 &rxvt_codeset_conv_iso8859_10,
212 &rxvt_codeset_conv_iso8859_11,
213 &rxvt_codeset_conv_iso8859_13,
214 &rxvt_codeset_conv_iso8859_14,
215 &rxvt_codeset_conv_iso8859_15,
216 &rxvt_codeset_conv_iso8859_16,
217
218 &rxvt_codeset_conv_koi8_r,
219 &rxvt_codeset_conv_koi8_u,
220
221 &rxvt_codeset_conv_jis0201_1976_0,
222 &rxvt_codeset_conv_jis0208_1983_0,
223 &rxvt_codeset_conv_jis0212_1990_0,
224
225 &rxvt_codeset_conv_jis0213_1,
226 &rxvt_codeset_conv_jis0213_2,
227
228 &rxvt_codeset_conv_ksc5601_1987_0,
229
230 &rxvt_codeset_conv_gb2312_1980_0,
231
232 &rxvt_codeset_conv_cns11643_1992_1,
233 &rxvt_codeset_conv_cns11643_1992_2,
234 &rxvt_codeset_conv_cns11643_1992_3,
235 &rxvt_codeset_conv_cns11643_1992_4,
236 &rxvt_codeset_conv_cns11643_1992_5,
237 &rxvt_codeset_conv_cns11643_1992_6,
238 &rxvt_codeset_conv_cns11643_1992_7,
239 &rxvt_codeset_conv_cns11643_1992_f,
240 &rxvt_codeset_conv_big5,
241 &rxvt_codeset_conv_big5_ext,
242 &rxvt_codeset_conv_big5_plus,
243
244 &rxvt_codeset_conv_viscii,
245
246 &rxvt_codeset_conv_unicode_16,
247 &rxvt_codeset_conv_unicode
248 };
249
250 //#define ENCODING_COMPOSE
251
252 #include "table/compose.h"
253
254 uint32_t
255 rxvt_compose (uint32_t c1, uint32_t c2)
256 {
257 int l = 0;
258 int r = sizeof (rxvt_compose_table) / sizeof (rxvt_compose_entry) - 1;
259 int m;
260
261 while (r > l)
262 {
263 m = (l + r) / 2;
264 rxvt_compose_entry &c = rxvt_compose_table[m];
265
266 if (c.c1 < c1 || (c.c1 == c1 && c.c2 < c2))
267 l = m + 1;
268 else if (c.c1 > c1 || (c.c1 == c1 && c.c2 > c2))
269 r = m - 1;
270 else
271 return c.r;
272 }
273
274 return NOCHAR;
275 }