Commit | Line | Data |
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3263d5a2 | 1 | /* Basic character set support. |
c8f94403 | 2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
114f9c96 | 3 | 2008, 2009, 2010 Free Software Foundation, Inc. |
7976eda0 | 4 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
114f9c96 | 5 | 2005, 2006, 2007, 2008, 2009, 2010 |
ce03bf76 KH |
6 | National Institute of Advanced Industrial Science and Technology (AIST) |
7 | Registration Number H14PRO021 | |
4ed46869 | 8 | |
327719ee | 9 | Copyright (C) 2003, 2004 |
3263d5a2 KH |
10 | National Institute of Advanced Industrial Science and Technology (AIST) |
11 | Registration Number H13PRO009 | |
4ed46869 | 12 | |
369314dc KH |
13 | This file is part of GNU Emacs. |
14 | ||
9ec0b715 | 15 | GNU Emacs is free software: you can redistribute it and/or modify |
369314dc | 16 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
17 | the Free Software Foundation, either version 3 of the License, or |
18 | (at your option) any later version. | |
4ed46869 | 19 | |
369314dc KH |
20 | GNU Emacs is distributed in the hope that it will be useful, |
21 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | GNU General Public License for more details. | |
4ed46869 | 24 | |
369314dc | 25 | You should have received a copy of the GNU General Public License |
9ec0b715 | 26 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
4ed46869 | 27 | |
68c45bf0 | 28 | #include <config.h> |
68c45bf0 | 29 | |
4ed46869 | 30 | #include <stdio.h> |
3263d5a2 KH |
31 | #include <unistd.h> |
32 | #include <ctype.h> | |
4ed46869 | 33 | #include <sys/types.h> |
d7306fe6 | 34 | #include <setjmp.h> |
4ed46869 | 35 | #include "lisp.h" |
3263d5a2 | 36 | #include "character.h" |
4ed46869 KH |
37 | #include "charset.h" |
38 | #include "coding.h" | |
fc6b09bf | 39 | #include "disptab.h" |
3263d5a2 | 40 | #include "buffer.h" |
4ed46869 | 41 | |
04c2f2c5 | 42 | /*** GENERAL NOTES on CODED CHARACTER SETS (CHARSETS) *** |
4ed46869 | 43 | |
3263d5a2 | 44 | A coded character set ("charset" hereafter) is a meaningful |
04c2f2c5 | 45 | collection (i.e. language, culture, functionality, etc.) of |
3263d5a2 | 46 | characters. Emacs handles multiple charsets at once. In Emacs Lisp |
04c2f2c5 DL |
47 | code, a charset is represented by a symbol. In C code, a charset is |
48 | represented by its ID number or by a pointer to a struct charset. | |
4ed46869 | 49 | |
3263d5a2 KH |
50 | The actual information about each charset is stored in two places. |
51 | Lispy information is stored in the hash table Vcharset_hash_table as | |
52 | a vector (charset attributes). The other information is stored in | |
04c2f2c5 | 53 | charset_table as a struct charset. |
4ed46869 | 54 | |
3263d5a2 | 55 | */ |
4ed46869 | 56 | |
3263d5a2 KH |
57 | /* List of all charsets. This variable is used only from Emacs |
58 | Lisp. */ | |
4ed46869 | 59 | Lisp_Object Vcharset_list; |
4ed46869 | 60 | |
3263d5a2 KH |
61 | /* Hash table that contains attributes of each charset. Keys are |
62 | charset symbols, and values are vectors of charset attributes. */ | |
63 | Lisp_Object Vcharset_hash_table; | |
4ed46869 | 64 | |
3263d5a2 KH |
65 | /* Table of struct charset. */ |
66 | struct charset *charset_table; | |
4ed46869 | 67 | |
3263d5a2 | 68 | static int charset_table_size; |
5af5dd92 | 69 | static int charset_table_used; |
4ed46869 | 70 | |
3263d5a2 | 71 | Lisp_Object Qcharsetp; |
4ed46869 | 72 | |
3263d5a2 KH |
73 | /* Special charset symbols. */ |
74 | Lisp_Object Qascii; | |
2fe1edd1 | 75 | Lisp_Object Qeight_bit; |
3263d5a2 KH |
76 | Lisp_Object Qiso_8859_1; |
77 | Lisp_Object Qunicode; | |
6c652beb | 78 | Lisp_Object Qemacs; |
4ed46869 | 79 | |
3263d5a2 KH |
80 | /* The corresponding charsets. */ |
81 | int charset_ascii; | |
2fe1edd1 | 82 | int charset_eight_bit; |
3263d5a2 KH |
83 | int charset_iso_8859_1; |
84 | int charset_unicode; | |
6c652beb | 85 | int charset_emacs; |
b0e3cf2b | 86 | |
7c7dceee KH |
87 | /* The other special charsets. */ |
88 | int charset_jisx0201_roman; | |
89 | int charset_jisx0208_1978; | |
90 | int charset_jisx0208; | |
d32320c4 | 91 | int charset_ksc5601; |
c1a08b4c | 92 | |
3263d5a2 KH |
93 | /* Value of charset attribute `charset-iso-plane'. */ |
94 | Lisp_Object Qgl, Qgr; | |
c1a08b4c | 95 | |
d1a04588 KH |
96 | /* Charset of unibyte characters. */ |
97 | int charset_unibyte; | |
4ed46869 | 98 | |
3263d5a2 KH |
99 | /* List of charsets ordered by the priority. */ |
100 | Lisp_Object Vcharset_ordered_list; | |
4ed46869 | 101 | |
6a9c90ec KH |
102 | /* Sub-list of Vcharset_ordered_list that contains all non-preferred |
103 | charsets. */ | |
104 | Lisp_Object Vcharset_non_preferred_head; | |
105 | ||
dbbb237d | 106 | /* Incremented everytime we change Vcharset_ordered_list. This is |
64165ae2 | 107 | unsigned short so that it fits in Lisp_Int and never matches |
dbbb237d KH |
108 | -1. */ |
109 | unsigned short charset_ordered_list_tick; | |
4ed46869 | 110 | |
3263d5a2 KH |
111 | /* List of iso-2022 charsets. */ |
112 | Lisp_Object Viso_2022_charset_list; | |
35e623fb | 113 | |
3263d5a2 KH |
114 | /* List of emacs-mule charsets. */ |
115 | Lisp_Object Vemacs_mule_charset_list; | |
116 | ||
117 | struct charset *emacs_mule_charset[256]; | |
4ed46869 KH |
118 | |
119 | /* Mapping table from ISO2022's charset (specified by DIMENSION, | |
120 | CHARS, and FINAL-CHAR) to Emacs' charset. */ | |
3263d5a2 KH |
121 | int iso_charset_table[ISO_MAX_DIMENSION][ISO_MAX_CHARS][ISO_MAX_FINAL]; |
122 | ||
4beef065 | 123 | Lisp_Object Vcharset_map_path; |
3263d5a2 | 124 | |
ecca2aad KH |
125 | /* If nonzero, don't load charset maps. */ |
126 | int inhibit_load_charset_map; | |
3263d5a2 | 127 | |
6a9c90ec KH |
128 | Lisp_Object Vcurrent_iso639_language; |
129 | ||
64165ae2 DL |
130 | /* Defined in chartab.c */ |
131 | extern void | |
132 | map_char_table_for_charset P_ ((void (*c_function) (Lisp_Object, Lisp_Object), | |
133 | Lisp_Object function, Lisp_Object table, | |
134 | Lisp_Object arg, struct charset *charset, | |
135 | unsigned from, unsigned to)); | |
136 | ||
69f8de5b KH |
137 | #define CODE_POINT_TO_INDEX(charset, code) \ |
138 | ((charset)->code_linear_p \ | |
139 | ? (code) - (charset)->min_code \ | |
140 | : (((charset)->code_space_mask[(code) >> 24] & 0x8) \ | |
141 | && ((charset)->code_space_mask[((code) >> 16) & 0xFF] & 0x4) \ | |
142 | && ((charset)->code_space_mask[((code) >> 8) & 0xFF] & 0x2) \ | |
143 | && ((charset)->code_space_mask[(code) & 0xFF] & 0x1)) \ | |
144 | ? (((((code) >> 24) - (charset)->code_space[12]) \ | |
145 | * (charset)->code_space[11]) \ | |
146 | + (((((code) >> 16) & 0xFF) - (charset)->code_space[8]) \ | |
147 | * (charset)->code_space[7]) \ | |
148 | + (((((code) >> 8) & 0xFF) - (charset)->code_space[4]) \ | |
149 | * (charset)->code_space[3]) \ | |
820ee249 KH |
150 | + (((code) & 0xFF) - (charset)->code_space[0]) \ |
151 | - ((charset)->char_index_offset)) \ | |
3263d5a2 KH |
152 | : -1) |
153 | ||
154 | ||
155 | /* Convert the character index IDX to code-point CODE for CHARSET. | |
156 | It is assumed that IDX is in a valid range. */ | |
157 | ||
820ee249 KH |
158 | #define INDEX_TO_CODE_POINT(charset, idx) \ |
159 | ((charset)->code_linear_p \ | |
160 | ? (idx) + (charset)->min_code \ | |
161 | : (idx += (charset)->char_index_offset, \ | |
162 | (((charset)->code_space[0] + (idx) % (charset)->code_space[2]) \ | |
163 | | (((charset)->code_space[4] \ | |
164 | + ((idx) / (charset)->code_space[3] % (charset)->code_space[6])) \ | |
165 | << 8) \ | |
166 | | (((charset)->code_space[8] \ | |
167 | + ((idx) / (charset)->code_space[7] % (charset)->code_space[10])) \ | |
168 | << 16) \ | |
169 | | (((charset)->code_space[12] + ((idx) / (charset)->code_space[11])) \ | |
170 | << 24)))) | |
4cf9710d | 171 | |
ecca2aad KH |
172 | /* Structure to hold mapping tables for a charset. Used by temacs |
173 | invoked for dumping. */ | |
8a73a704 | 174 | |
ecca2aad KH |
175 | static struct |
176 | { | |
177 | /* The current charset for which the following tables are setup. */ | |
178 | struct charset *current; | |
179 | ||
180 | /* 1 iff the following table is used for encoder. */ | |
181 | short for_encoder; | |
182 | ||
183 | /* When the following table is used for encoding, mininum and | |
184 | maxinum character of the current charset. */ | |
185 | int min_char, max_char; | |
186 | ||
187 | /* A Unicode character correspoinding to the code indice 0 (i.e. the | |
188 | minimum code-point) of the current charset, or -1 if the code | |
189 | indice 0 is not a Unicode character. This is checked when | |
190 | table.encoder[CHAR] is zero. */ | |
191 | int zero_index_char; | |
192 | ||
193 | union { | |
194 | /* Table mapping code-indices (not code-points) of the current | |
195 | charset to Unicode characters. If decoder[CHAR] is -1, CHAR | |
196 | doesn't belong to the current charset. */ | |
197 | int decoder[0x10000]; | |
198 | /* Table mapping Unicode characters to code-indices of the current | |
199 | charset. The first 0x10000 elements are for BMP (0..0xFFFF), | |
200 | and the last 0x10000 are for SMP (0x10000..0x1FFFF) or SIP | |
201 | (0x20000..0x2FFFF). Note that there is no charset map that | |
202 | uses both SMP and SIP. */ | |
203 | unsigned short encoder[0x20000]; | |
204 | } table; | |
205 | } *temp_charset_work; | |
206 | ||
207 | #define SET_TEMP_CHARSET_WORK_ENCODER(C, CODE) \ | |
208 | do { \ | |
209 | if ((CODE) == 0) \ | |
210 | temp_charset_work->zero_index_char = (C); \ | |
211 | else if ((C) < 0x20000) \ | |
212 | temp_charset_work->table.encoder[(C)] = (CODE); \ | |
213 | else \ | |
214 | temp_charset_work->table.encoder[(C) - 0x10000] = (CODE); \ | |
215 | } while (0) | |
216 | ||
217 | #define GET_TEMP_CHARSET_WORK_ENCODER(C) \ | |
218 | ((C) == temp_charset_work->zero_index_char ? 0 \ | |
219 | : (C) < 0x20000 ? (temp_charset_work->table.encoder[(C)] \ | |
220 | ? (int) temp_charset_work->table.encoder[(C)] : -1) \ | |
221 | : temp_charset_work->table.encoder[(C) - 0x10000] \ | |
222 | ? temp_charset_work->table.encoder[(C) - 0x10000] : -1) | |
223 | ||
224 | #define SET_TEMP_CHARSET_WORK_DECODER(C, CODE) \ | |
225 | (temp_charset_work->table.decoder[(CODE)] = (C)) | |
226 | ||
227 | #define GET_TEMP_CHARSET_WORK_DECODER(CODE) \ | |
228 | (temp_charset_work->table.decoder[(CODE)]) | |
046b1f03 | 229 | \f |
93bcb785 | 230 | |
e9ce014c KH |
231 | /* Set to 1 to warn that a charset map is loaded and thus a buffer |
232 | text and a string data may be relocated. */ | |
3263d5a2 | 233 | int charset_map_loaded; |
4ed46869 | 234 | |
e9ce014c | 235 | struct charset_map_entries |
4ed46869 | 236 | { |
e9ce014c KH |
237 | struct { |
238 | unsigned from, to; | |
239 | int c; | |
240 | } entry[0x10000]; | |
241 | struct charset_map_entries *next; | |
242 | }; | |
243 | ||
ecca2aad KH |
244 | /* Load the mapping information of CHARSET from ENTRIES for |
245 | initializing (CONTROL_FLAG == 0), decoding (CONTROL_FLAG == 1), and | |
246 | encoding (CONTROL_FLAG == 2). | |
247 | ||
248 | If CONTROL_FLAG is 0, setup CHARSET->min_char, CHARSET->max_char, | |
249 | and CHARSET->fast_map. | |
250 | ||
251 | If CONTROL_FLAG is 1, setup the following tables according to | |
252 | CHARSET->method and inhibit_load_charset_map. | |
4cf9710d | 253 | |
ecca2aad KH |
254 | CHARSET->method | inhibit_lcm == 0 | inhibit_lcm == 1 |
255 | ----------------------+--------------------+--------------------------- | |
256 | CHARSET_METHOD_MAP | CHARSET->decoder | temp_charset_work->decoder | |
257 | ----------------------+--------------------+--------------------------- | |
258 | CHARSET_METHOD_OFFSET | Vchar_unify_table | temp_charset_work->decoder | |
8a73a704 | 259 | |
ecca2aad | 260 | If CONTROL_FLAG is 2, setup the following tables. |
93bcb785 | 261 | |
ecca2aad KH |
262 | CHARSET->method | inhibit_lcm == 0 | inhibit_lcm == 1 |
263 | ----------------------+--------------------+--------------------------- | |
264 | CHARSET_METHOD_MAP | CHARSET->encoder | temp_charset_work->encoder | |
265 | ----------------------+--------------------+-------------------------- | |
266 | CHARSET_METHOD_OFFSET | CHARSET->deunifier | temp_charset_work->encoder | |
267 | */ | |
4ed46869 | 268 | |
3263d5a2 | 269 | static void |
e9ce014c | 270 | load_charset_map (charset, entries, n_entries, control_flag) |
3263d5a2 | 271 | struct charset *charset; |
e9ce014c KH |
272 | struct charset_map_entries *entries; |
273 | int n_entries; | |
3263d5a2 | 274 | int control_flag; |
4ed46869 | 275 | { |
3263d5a2 | 276 | Lisp_Object vec, table; |
3263d5a2 KH |
277 | unsigned max_code = CHARSET_MAX_CODE (charset); |
278 | int ascii_compatible_p = charset->ascii_compatible_p; | |
279 | int min_char, max_char, nonascii_min_char; | |
3263d5a2 | 280 | int i; |
3263d5a2 | 281 | unsigned char *fast_map = charset->fast_map; |
99529c2c | 282 | |
e9ce014c KH |
283 | if (n_entries <= 0) |
284 | return; | |
285 | ||
ecca2aad | 286 | if (control_flag) |
8ac5a9cc | 287 | { |
ecca2aad KH |
288 | if (! inhibit_load_charset_map) |
289 | { | |
290 | if (control_flag == 1) | |
291 | { | |
292 | if (charset->method == CHARSET_METHOD_MAP) | |
293 | { | |
294 | int n = CODE_POINT_TO_INDEX (charset, max_code) + 1; | |
6662e69b | 295 | |
ecca2aad KH |
296 | vec = CHARSET_DECODER (charset) |
297 | = Fmake_vector (make_number (n), make_number (-1)); | |
298 | } | |
299 | else | |
300 | { | |
301 | char_table_set_range (Vchar_unify_table, | |
302 | charset->min_char, charset->max_char, | |
303 | Qnil); | |
304 | } | |
305 | } | |
306 | else | |
307 | { | |
308 | table = Fmake_char_table (Qnil, Qnil); | |
309 | if (charset->method == CHARSET_METHOD_MAP) | |
310 | CHARSET_ENCODER (charset) = table; | |
311 | else | |
312 | CHARSET_DEUNIFIER (charset) = table; | |
313 | } | |
314 | } | |
315 | else | |
316 | { | |
317 | if (! temp_charset_work) | |
318 | temp_charset_work = malloc (sizeof (*temp_charset_work)); | |
319 | if (control_flag == 1) | |
320 | { | |
321 | memset (temp_charset_work->table.decoder, -1, | |
322 | sizeof (int) * 0x10000); | |
ecca2aad KH |
323 | } |
324 | else | |
325 | { | |
326 | memset (temp_charset_work->table.encoder, 0, | |
327 | sizeof (unsigned short) * 0x20000); | |
328 | temp_charset_work->zero_index_char = -1; | |
329 | } | |
330 | temp_charset_work->current = charset; | |
331 | temp_charset_work->for_encoder = (control_flag == 2); | |
332 | control_flag += 2; | |
333 | } | |
3263d5a2 | 334 | charset_map_loaded = 1; |
2e344af3 | 335 | } |
6662e69b | 336 | |
e9ce014c | 337 | min_char = max_char = entries->entry[0].c; |
3263d5a2 | 338 | nonascii_min_char = MAX_CHAR; |
e9ce014c | 339 | for (i = 0; i < n_entries; i++) |
2e344af3 | 340 | { |
e9ce014c | 341 | unsigned from, to; |
3b4f4446 KH |
342 | int from_index, to_index; |
343 | int from_c, to_c; | |
e9ce014c | 344 | int idx = i % 0x10000; |
3263d5a2 | 345 | |
e9ce014c KH |
346 | if (i > 0 && idx == 0) |
347 | entries = entries->next; | |
348 | from = entries->entry[idx].from; | |
349 | to = entries->entry[idx].to; | |
3b4f4446 KH |
350 | from_c = entries->entry[idx].c; |
351 | from_index = CODE_POINT_TO_INDEX (charset, from); | |
352 | if (from == to) | |
6662e69b | 353 | { |
3b4f4446 KH |
354 | to_index = from_index; |
355 | to_c = from_c; | |
6662e69b | 356 | } |
3b4f4446 | 357 | else |
6662e69b | 358 | { |
3b4f4446 KH |
359 | to_index = CODE_POINT_TO_INDEX (charset, to); |
360 | to_c = from_c + (to_index - from_index); | |
6662e69b | 361 | } |
3b4f4446 KH |
362 | if (from_index < 0 || to_index < 0) |
363 | continue; | |
3263d5a2 | 364 | |
ecca2aad KH |
365 | if (to_c > max_char) |
366 | max_char = to_c; | |
367 | else if (from_c < min_char) | |
368 | min_char = from_c; | |
6662e69b | 369 | |
ecca2aad KH |
370 | if (control_flag == 1) |
371 | { | |
372 | if (charset->method == CHARSET_METHOD_MAP) | |
373 | for (; from_index <= to_index; from_index++, from_c++) | |
374 | ASET (vec, from_index, make_number (from_c)); | |
375 | else | |
376 | for (; from_index <= to_index; from_index++, from_c++) | |
377 | CHAR_TABLE_SET (Vchar_unify_table, | |
378 | CHARSET_CODE_OFFSET (charset) + from_index, | |
379 | make_number (from_c)); | |
380 | } | |
381 | else if (control_flag == 2) | |
382 | { | |
383 | if (charset->method == CHARSET_METHOD_MAP | |
384 | && CHARSET_COMPACT_CODES_P (charset)) | |
385 | for (; from_index <= to_index; from_index++, from_c++) | |
386 | { | |
387 | unsigned code = INDEX_TO_CODE_POINT (charset, from_index); | |
388 | ||
389 | if (NILP (CHAR_TABLE_REF (table, from_c))) | |
390 | CHAR_TABLE_SET (table, from_c, make_number (code)); | |
391 | } | |
392 | else | |
393 | for (; from_index <= to_index; from_index++, from_c++) | |
394 | { | |
395 | if (NILP (CHAR_TABLE_REF (table, from_c))) | |
396 | CHAR_TABLE_SET (table, from_c, make_number (from_index)); | |
397 | } | |
398 | } | |
399 | else if (control_flag == 3) | |
400 | for (; from_index <= to_index; from_index++, from_c++) | |
401 | SET_TEMP_CHARSET_WORK_DECODER (from_c, from_index); | |
402 | else if (control_flag == 4) | |
403 | for (; from_index <= to_index; from_index++, from_c++) | |
404 | SET_TEMP_CHARSET_WORK_ENCODER (from_c, from_index); | |
405 | else /* control_flag == 0 */ | |
406 | { | |
3b4f4446 KH |
407 | if (ascii_compatible_p) |
408 | { | |
409 | if (! ASCII_BYTE_P (from_c)) | |
410 | { | |
411 | if (from_c < nonascii_min_char) | |
412 | nonascii_min_char = from_c; | |
413 | } | |
414 | else if (! ASCII_BYTE_P (to_c)) | |
415 | { | |
416 | nonascii_min_char = 0x80; | |
417 | } | |
418 | } | |
177c0ea7 | 419 | |
ecca2aad KH |
420 | for (; from_c <= to_c; from_c++) |
421 | CHARSET_FAST_MAP_SET (from_c, fast_map); | |
2e344af3 | 422 | } |
8ac5a9cc | 423 | } |
3263d5a2 | 424 | |
ecca2aad | 425 | if (control_flag == 0) |
4ed46869 | 426 | { |
3263d5a2 KH |
427 | CHARSET_MIN_CHAR (charset) = (ascii_compatible_p |
428 | ? nonascii_min_char : min_char); | |
429 | CHARSET_MAX_CHAR (charset) = max_char; | |
4ed46869 | 430 | } |
ecca2aad KH |
431 | else if (control_flag == 4) |
432 | { | |
433 | temp_charset_work->min_char = min_char; | |
434 | temp_charset_work->max_char = max_char; | |
435 | } | |
4ed46869 KH |
436 | } |
437 | ||
12bcae05 | 438 | |
3263d5a2 KH |
439 | /* Read a hexadecimal number (preceded by "0x") from the file FP while |
440 | paying attention to comment charcter '#'. */ | |
12bcae05 | 441 | |
3263d5a2 KH |
442 | static INLINE unsigned |
443 | read_hex (fp, eof) | |
444 | FILE *fp; | |
445 | int *eof; | |
12bcae05 | 446 | { |
3263d5a2 KH |
447 | int c; |
448 | unsigned n; | |
12bcae05 | 449 | |
3263d5a2 KH |
450 | while ((c = getc (fp)) != EOF) |
451 | { | |
69f8de5b | 452 | if (c == '#') |
3263d5a2 KH |
453 | { |
454 | while ((c = getc (fp)) != EOF && c != '\n'); | |
455 | } | |
456 | else if (c == '0') | |
457 | { | |
458 | if ((c = getc (fp)) == EOF || c == 'x') | |
459 | break; | |
460 | } | |
8f924df7 | 461 | } |
3263d5a2 KH |
462 | if (c == EOF) |
463 | { | |
464 | *eof = 1; | |
465 | return 0; | |
466 | } | |
467 | *eof = 0; | |
468 | n = 0; | |
469 | if (c == 'x') | |
470 | while ((c = getc (fp)) != EOF && isxdigit (c)) | |
471 | n = ((n << 4) | |
472 | | (c <= '9' ? c - '0' : c <= 'F' ? c - 'A' + 10 : c - 'a' + 10)); | |
473 | else | |
474 | while ((c = getc (fp)) != EOF && isdigit (c)) | |
475 | n = (n * 10) + c - '0'; | |
e9ce014c KH |
476 | if (c != EOF) |
477 | ungetc (c, fp); | |
3263d5a2 KH |
478 | return n; |
479 | } | |
12bcae05 | 480 | |
dde2559c | 481 | extern Lisp_Object Qfile_name_handler_alist; |
537efd8d | 482 | |
3263d5a2 | 483 | /* Return a mapping vector for CHARSET loaded from MAPFILE. |
e9ce014c KH |
484 | Each line of MAPFILE has this form |
485 | 0xAAAA 0xCCCC | |
486 | where 0xAAAA is a code-point and 0xCCCC is the corresponding | |
487 | character code, or this form | |
488 | 0xAAAA-0xBBBB 0xCCCC | |
489 | where 0xAAAA and 0xBBBB are code-points specifying a range, and | |
490 | 0xCCCC is the first character code of the range. | |
4ed46869 | 491 | |
3263d5a2 KH |
492 | The returned vector has this form: |
493 | [ CODE1 CHAR1 CODE2 CHAR2 .... ] | |
e9ce014c | 494 | where CODE1 is a code-point or a cons of code-points specifying a |
dde2559c KH |
495 | range. |
496 | ||
18a10a21 JB |
497 | Note that this function uses `openp' to open MAPFILE but ignores |
498 | `file-name-handler-alist' to avoid running any Lisp code. */ | |
4ed46869 | 499 | |
c449997d | 500 | extern void add_to_log P_ ((char *, Lisp_Object, Lisp_Object)); |
4ed46869 | 501 | |
e9ce014c KH |
502 | static void |
503 | load_charset_map_from_file (charset, mapfile, control_flag) | |
3263d5a2 KH |
504 | struct charset *charset; |
505 | Lisp_Object mapfile; | |
e9ce014c | 506 | int control_flag; |
4ed46869 | 507 | { |
e9ce014c KH |
508 | unsigned min_code = CHARSET_MIN_CODE (charset); |
509 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
3263d5a2 KH |
510 | int fd; |
511 | FILE *fp; | |
3263d5a2 KH |
512 | int eof; |
513 | Lisp_Object suffixes; | |
e9ce014c | 514 | struct charset_map_entries *head, *entries; |
a2f3eb19 CY |
515 | int n_entries, count; |
516 | USE_SAFE_ALLOCA; | |
4ed46869 | 517 | |
3263d5a2 KH |
518 | suffixes = Fcons (build_string (".map"), |
519 | Fcons (build_string (".TXT"), Qnil)); | |
4ed46869 | 520 | |
a2f3eb19 | 521 | count = SPECPDL_INDEX (); |
dde2559c | 522 | specbind (Qfile_name_handler_alist, Qnil); |
4beef065 | 523 | fd = openp (Vcharset_map_path, mapfile, suffixes, NULL, Qnil); |
dde2559c | 524 | unbind_to (count, Qnil); |
3263d5a2 KH |
525 | if (fd < 0 |
526 | || ! (fp = fdopen (fd, "r"))) | |
8458d4c1 | 527 | error ("Failure in loading charset map: %S", SDATA (mapfile)); |
4ed46869 | 528 | |
a2f3eb19 CY |
529 | /* Use SAFE_ALLOCA instead of alloca, as `charset_map_entries' is |
530 | large (larger than MAX_ALLOCA). */ | |
531 | SAFE_ALLOCA (head, struct charset_map_entries *, | |
532 | sizeof (struct charset_map_entries)); | |
533 | entries = head; | |
534 | ||
e9ce014c | 535 | n_entries = 0; |
3263d5a2 KH |
536 | eof = 0; |
537 | while (1) | |
538 | { | |
e9ce014c KH |
539 | unsigned from, to; |
540 | int c; | |
541 | int idx; | |
4ed46869 | 542 | |
e9ce014c | 543 | from = read_hex (fp, &eof); |
3263d5a2 KH |
544 | if (eof) |
545 | break; | |
e9ce014c KH |
546 | if (getc (fp) == '-') |
547 | to = read_hex (fp, &eof); | |
548 | else | |
549 | to = from; | |
550 | c = (int) read_hex (fp, &eof); | |
ac4137cc | 551 | |
e9ce014c KH |
552 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
553 | continue; | |
ac4137cc | 554 | |
e9ce014c | 555 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
3263d5a2 | 556 | { |
a2f3eb19 CY |
557 | SAFE_ALLOCA (entries->next, struct charset_map_entries *, |
558 | sizeof (struct charset_map_entries)); | |
e9ce014c | 559 | entries = entries->next; |
3263d5a2 | 560 | } |
e9ce014c KH |
561 | idx = n_entries % 0x10000; |
562 | entries->entry[idx].from = from; | |
563 | entries->entry[idx].to = to; | |
564 | entries->entry[idx].c = c; | |
565 | n_entries++; | |
3263d5a2 KH |
566 | } |
567 | fclose (fp); | |
568 | close (fd); | |
177c0ea7 | 569 | |
e9ce014c | 570 | load_charset_map (charset, head, n_entries, control_flag); |
a2f3eb19 | 571 | SAFE_FREE (); |
4ed46869 KH |
572 | } |
573 | ||
e9ce014c KH |
574 | static void |
575 | load_charset_map_from_vector (charset, vec, control_flag) | |
576 | struct charset *charset; | |
577 | Lisp_Object vec; | |
578 | int control_flag; | |
23d2a7f1 | 579 | { |
e9ce014c KH |
580 | unsigned min_code = CHARSET_MIN_CODE (charset); |
581 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
582 | struct charset_map_entries *head, *entries; | |
583 | int n_entries; | |
584 | int len = ASIZE (vec); | |
585 | int i; | |
a2f3eb19 | 586 | USE_SAFE_ALLOCA; |
23d2a7f1 | 587 | |
e9ce014c | 588 | if (len % 2 == 1) |
3263d5a2 | 589 | { |
e9ce014c KH |
590 | add_to_log ("Failure in loading charset map: %V", vec, Qnil); |
591 | return; | |
3263d5a2 | 592 | } |
35e623fb | 593 | |
a2f3eb19 CY |
594 | /* Use SAFE_ALLOCA instead of alloca, as `charset_map_entries' is |
595 | large (larger than MAX_ALLOCA). */ | |
596 | SAFE_ALLOCA (head, struct charset_map_entries *, | |
597 | sizeof (struct charset_map_entries)); | |
598 | entries = head; | |
599 | ||
e9ce014c KH |
600 | n_entries = 0; |
601 | for (i = 0; i < len; i += 2) | |
35e623fb | 602 | { |
e9ce014c KH |
603 | Lisp_Object val, val2; |
604 | unsigned from, to; | |
605 | int c; | |
606 | int idx; | |
d2665018 | 607 | |
e9ce014c KH |
608 | val = AREF (vec, i); |
609 | if (CONSP (val)) | |
bbf12bb3 | 610 | { |
e9ce014c KH |
611 | val2 = XCDR (val); |
612 | val = XCAR (val); | |
613 | CHECK_NATNUM (val); | |
614 | CHECK_NATNUM (val2); | |
615 | from = XFASTINT (val); | |
616 | to = XFASTINT (val2); | |
bbf12bb3 | 617 | } |
e9ce014c | 618 | else |
bbf12bb3 | 619 | { |
e9ce014c KH |
620 | CHECK_NATNUM (val); |
621 | from = to = XFASTINT (val); | |
bbf12bb3 | 622 | } |
e9ce014c KH |
623 | val = AREF (vec, i + 1); |
624 | CHECK_NATNUM (val); | |
625 | c = XFASTINT (val); | |
76d7b829 | 626 | |
e9ce014c KH |
627 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
628 | continue; | |
76d7b829 | 629 | |
dcc694d7 | 630 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
e9ce014c | 631 | { |
a2f3eb19 CY |
632 | SAFE_ALLOCA (entries->next, struct charset_map_entries *, |
633 | sizeof (struct charset_map_entries)); | |
e9ce014c KH |
634 | entries = entries->next; |
635 | } | |
636 | idx = n_entries % 0x10000; | |
637 | entries->entry[idx].from = from; | |
638 | entries->entry[idx].to = to; | |
639 | entries->entry[idx].c = c; | |
640 | n_entries++; | |
641 | } | |
76d7b829 | 642 | |
e9ce014c | 643 | load_charset_map (charset, head, n_entries, control_flag); |
a2f3eb19 | 644 | SAFE_FREE (); |
ac4137cc KH |
645 | } |
646 | ||
ecca2aad KH |
647 | |
648 | /* Load a mapping table for CHARSET. CONTROL-FLAG tells what kind of | |
649 | map it is (see the comment of load_charset_map for the detail). */ | |
650 | ||
3263d5a2 | 651 | static void |
ecca2aad | 652 | load_charset (charset, control_flag) |
3263d5a2 | 653 | struct charset *charset; |
ecca2aad | 654 | int control_flag; |
76d7b829 | 655 | { |
ecca2aad | 656 | Lisp_Object map; |
76d7b829 | 657 | |
ecca2aad KH |
658 | if (inhibit_load_charset_map |
659 | && temp_charset_work | |
660 | && charset == temp_charset_work->current | |
56f00ed2 | 661 | && ((control_flag == 2) == temp_charset_work->for_encoder)) |
ecca2aad KH |
662 | return; |
663 | ||
664 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) | |
665 | map = CHARSET_MAP (charset); | |
666 | else if (CHARSET_UNIFIED_P (charset)) | |
667 | map = CHARSET_UNIFY_MAP (charset); | |
668 | if (STRINGP (map)) | |
669 | load_charset_map_from_file (charset, map, control_flag); | |
670 | else | |
671 | load_charset_map_from_vector (charset, map, control_flag); | |
4ed46869 | 672 | } |
76d7b829 | 673 | |
3263d5a2 KH |
674 | |
675 | DEFUN ("charsetp", Fcharsetp, Scharsetp, 1, 1, 0, | |
676 | doc: /* Return non-nil if and only if OBJECT is a charset.*/) | |
677 | (object) | |
678 | Lisp_Object object; | |
23d2a7f1 | 679 | { |
3263d5a2 | 680 | return (CHARSETP (object) ? Qt : Qnil); |
76d7b829 KH |
681 | } |
682 | ||
4ed46869 | 683 | |
ecca2aad KH |
684 | void map_charset_for_dump P_ ((void (*c_function) (Lisp_Object, Lisp_Object), |
685 | Lisp_Object function, Lisp_Object arg, | |
686 | unsigned from, unsigned to)); | |
687 | ||
688 | void | |
689 | map_charset_for_dump (c_function, function, arg, from, to) | |
690 | void (*c_function) (Lisp_Object, Lisp_Object); | |
691 | Lisp_Object function, arg; | |
692 | unsigned from, to; | |
693 | { | |
694 | int from_idx = CODE_POINT_TO_INDEX (temp_charset_work->current, from); | |
695 | int to_idx = CODE_POINT_TO_INDEX (temp_charset_work->current, to); | |
696 | Lisp_Object range; | |
697 | int c, stop; | |
698 | struct gcpro gcpro1; | |
699 | ||
700 | range = Fcons (Qnil, Qnil); | |
701 | GCPRO1 (range); | |
702 | ||
703 | c = temp_charset_work->min_char; | |
704 | stop = (temp_charset_work->max_char < 0x20000 | |
705 | ? temp_charset_work->max_char : 0xFFFF); | |
706 | ||
707 | while (1) | |
708 | { | |
709 | int index = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
710 | ||
711 | if (index >= from_idx && index <= to_idx) | |
712 | { | |
713 | if (NILP (XCAR (range))) | |
714 | XSETCAR (range, make_number (c)); | |
715 | } | |
716 | else if (! NILP (XCAR (range))) | |
717 | { | |
718 | XSETCDR (range, make_number (c - 1)); | |
719 | if (c_function) | |
720 | (*c_function) (arg, range); | |
721 | else | |
722 | call2 (function, range, arg); | |
723 | XSETCAR (range, Qnil); | |
724 | } | |
725 | if (c == stop) | |
726 | { | |
727 | if (c == temp_charset_work->max_char) | |
728 | { | |
729 | if (! NILP (XCAR (range))) | |
730 | { | |
731 | XSETCDR (range, make_number (c)); | |
732 | if (c_function) | |
733 | (*c_function) (arg, range); | |
734 | else | |
735 | call2 (function, range, arg); | |
736 | } | |
737 | break; | |
738 | } | |
739 | c = 0x1FFFF; | |
740 | stop = temp_charset_work->max_char; | |
741 | } | |
742 | c++; | |
743 | } | |
c542407d | 744 | UNGCPRO; |
ecca2aad KH |
745 | } |
746 | ||
4ed46869 | 747 | void |
374c5cfd KH |
748 | map_charset_chars (c_function, function, arg, |
749 | charset, from, to) | |
750 | void (*c_function) P_ ((Lisp_Object, Lisp_Object)); | |
751 | Lisp_Object function, arg; | |
752 | struct charset *charset; | |
753 | unsigned from, to; | |
4ed46869 | 754 | { |
3263d5a2 | 755 | Lisp_Object range; |
374c5cfd | 756 | int partial; |
3263d5a2 | 757 | |
374c5cfd KH |
758 | partial = (from > CHARSET_MIN_CODE (charset) |
759 | || to < CHARSET_MAX_CODE (charset)); | |
760 | ||
3263d5a2 | 761 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_OFFSET) |
4ed46869 | 762 | { |
374c5cfd KH |
763 | int from_idx = CODE_POINT_TO_INDEX (charset, from); |
764 | int to_idx = CODE_POINT_TO_INDEX (charset, to); | |
765 | int from_c = from_idx + CHARSET_CODE_OFFSET (charset); | |
766 | int to_c = to_idx + CHARSET_CODE_OFFSET (charset); | |
767 | ||
ecca2aad KH |
768 | if (CHARSET_UNIFIED_P (charset)) |
769 | { | |
770 | if (! CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
771 | load_charset (charset, 2); | |
772 | if (CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
773 | map_char_table_for_charset (c_function, function, | |
774 | CHARSET_DEUNIFIER (charset), arg, | |
775 | partial ? charset : NULL, from, to); | |
776 | else | |
777 | map_charset_for_dump (c_function, function, arg, from, to); | |
778 | } | |
779 | ||
374c5cfd | 780 | range = Fcons (make_number (from_c), make_number (to_c)); |
3263d5a2 | 781 | if (NILP (function)) |
5af5dd92 | 782 | (*c_function) (arg, range); |
3263d5a2 KH |
783 | else |
784 | call2 (function, range, arg); | |
c83ef371 | 785 | } |
3263d5a2 KH |
786 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) |
787 | { | |
788 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
ecca2aad KH |
789 | load_charset (charset, 2); |
790 | if (CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
791 | map_char_table_for_charset (c_function, function, | |
792 | CHARSET_ENCODER (charset), arg, | |
793 | partial ? charset : NULL, from, to); | |
794 | else | |
795 | map_charset_for_dump (c_function, function, arg, from, to); | |
3263d5a2 | 796 | } |
374c5cfd | 797 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_SUBSET) |
4ed46869 | 798 | { |
374c5cfd KH |
799 | Lisp_Object subset_info; |
800 | int offset; | |
801 | ||
802 | subset_info = CHARSET_SUBSET (charset); | |
803 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
804 | offset = XINT (AREF (subset_info, 3)); | |
805 | from -= offset; | |
806 | if (from < XFASTINT (AREF (subset_info, 1))) | |
807 | from = XFASTINT (AREF (subset_info, 1)); | |
808 | to -= offset; | |
809 | if (to > XFASTINT (AREF (subset_info, 2))) | |
810 | to = XFASTINT (AREF (subset_info, 2)); | |
811 | map_charset_chars (c_function, function, arg, charset, from, to); | |
4ed46869 | 812 | } |
374c5cfd KH |
813 | else /* i.e. CHARSET_METHOD_SUPERSET */ |
814 | { | |
815 | Lisp_Object parents; | |
4ed46869 | 816 | |
374c5cfd KH |
817 | for (parents = CHARSET_SUPERSET (charset); CONSP (parents); |
818 | parents = XCDR (parents)) | |
bbf12bb3 | 819 | { |
374c5cfd KH |
820 | int offset; |
821 | unsigned this_from, this_to; | |
822 | ||
823 | charset = CHARSET_FROM_ID (XFASTINT (XCAR (XCAR (parents)))); | |
824 | offset = XINT (XCDR (XCAR (parents))); | |
12b55765 KH |
825 | this_from = from > offset ? from - offset : 0; |
826 | this_to = to > offset ? to - offset : 0; | |
374c5cfd KH |
827 | if (this_from < CHARSET_MIN_CODE (charset)) |
828 | this_from = CHARSET_MIN_CODE (charset); | |
829 | if (this_to > CHARSET_MAX_CODE (charset)) | |
830 | this_to = CHARSET_MAX_CODE (charset); | |
111daccf KH |
831 | map_charset_chars (c_function, function, arg, charset, |
832 | this_from, this_to); | |
bbf12bb3 | 833 | } |
35e623fb | 834 | } |
4ed46869 KH |
835 | } |
836 | ||
374c5cfd | 837 | DEFUN ("map-charset-chars", Fmap_charset_chars, Smap_charset_chars, 2, 5, 0, |
04c2f2c5 | 838 | doc: /* Call FUNCTION for all characters in CHARSET. |
374c5cfd | 839 | FUNCTION is called with an argument RANGE and the optional 3rd |
3263d5a2 | 840 | argument ARG. |
4ed46869 | 841 | |
374c5cfd KH |
842 | RANGE is a cons (FROM . TO), where FROM and TO indicate a range of |
843 | characters contained in CHARSET. | |
4ed46869 | 844 | |
374c5cfd | 845 | The optional 4th and 5th arguments FROM-CODE and TO-CODE specify the |
72d51285 | 846 | range of code points (in CHARSET) of target characters. */) |
374c5cfd KH |
847 | (function, charset, arg, from_code, to_code) |
848 | Lisp_Object function, charset, arg, from_code, to_code; | |
4ed46869 | 849 | { |
374c5cfd | 850 | struct charset *cs; |
16fed1fc | 851 | unsigned from, to; |
4ed46869 | 852 | |
374c5cfd KH |
853 | CHECK_CHARSET_GET_CHARSET (charset, cs); |
854 | if (NILP (from_code)) | |
16fed1fc | 855 | from = CHARSET_MIN_CODE (cs); |
970b7474 | 856 | else |
4ed46869 | 857 | { |
970b7474 KH |
858 | CHECK_NATNUM (from_code); |
859 | from = XINT (from_code); | |
860 | if (from < CHARSET_MIN_CODE (cs)) | |
861 | from = CHARSET_MIN_CODE (cs); | |
4ed46869 | 862 | } |
374c5cfd | 863 | if (NILP (to_code)) |
970b7474 | 864 | to = CHARSET_MAX_CODE (cs); |
4ed46869 KH |
865 | else |
866 | { | |
970b7474 KH |
867 | CHECK_NATNUM (to_code); |
868 | to = XINT (to_code); | |
869 | if (to > CHARSET_MAX_CODE (cs)) | |
870 | to = CHARSET_MAX_CODE (cs); | |
4ed46869 | 871 | } |
16fed1fc | 872 | map_charset_chars (NULL, function, arg, cs, from, to); |
3263d5a2 | 873 | return Qnil; |
35e623fb | 874 | } |
4ed46869 | 875 | |
4ed46869 | 876 | |
3263d5a2 KH |
877 | /* Define a charset according to the arguments. The Nth argument is |
878 | the Nth attribute of the charset (the last attribute `charset-id' | |
879 | is not included). See the docstring of `define-charset' for the | |
880 | detail. */ | |
4ed46869 | 881 | |
3263d5a2 KH |
882 | DEFUN ("define-charset-internal", Fdefine_charset_internal, |
883 | Sdefine_charset_internal, charset_arg_max, MANY, 0, | |
04c2f2c5 DL |
884 | doc: /* For internal use only. |
885 | usage: (define-charset-internal ...) */) | |
3263d5a2 KH |
886 | (nargs, args) |
887 | int nargs; | |
888 | Lisp_Object *args; | |
4ed46869 | 889 | { |
3263d5a2 KH |
890 | /* Charset attr vector. */ |
891 | Lisp_Object attrs; | |
892 | Lisp_Object val; | |
893 | unsigned hash_code; | |
894 | struct Lisp_Hash_Table *hash_table = XHASH_TABLE (Vcharset_hash_table); | |
69f8de5b | 895 | int i, j; |
3263d5a2 KH |
896 | struct charset charset; |
897 | int id; | |
898 | int dimension; | |
899 | int new_definition_p; | |
900 | int nchars; | |
901 | ||
902 | if (nargs != charset_arg_max) | |
903 | return Fsignal (Qwrong_number_of_arguments, | |
904 | Fcons (intern ("define-charset-internal"), | |
905 | make_number (nargs))); | |
906 | ||
907 | attrs = Fmake_vector (make_number (charset_attr_max), Qnil); | |
908 | ||
909 | CHECK_SYMBOL (args[charset_arg_name]); | |
910 | ASET (attrs, charset_name, args[charset_arg_name]); | |
911 | ||
912 | val = args[charset_arg_code_space]; | |
913 | for (i = 0, dimension = 0, nchars = 1; i < 4; i++) | |
76d7b829 | 914 | { |
3263d5a2 KH |
915 | int min_byte, max_byte; |
916 | ||
917 | min_byte = XINT (Faref (val, make_number (i * 2))); | |
918 | max_byte = XINT (Faref (val, make_number (i * 2 + 1))); | |
919 | if (min_byte < 0 || min_byte > max_byte || max_byte >= 256) | |
920 | error ("Invalid :code-space value"); | |
921 | charset.code_space[i * 4] = min_byte; | |
922 | charset.code_space[i * 4 + 1] = max_byte; | |
923 | charset.code_space[i * 4 + 2] = max_byte - min_byte + 1; | |
924 | nchars *= charset.code_space[i * 4 + 2]; | |
925 | charset.code_space[i * 4 + 3] = nchars; | |
926 | if (max_byte > 0) | |
927 | dimension = i + 1; | |
928 | } | |
4ed46869 | 929 | |
3263d5a2 KH |
930 | val = args[charset_arg_dimension]; |
931 | if (NILP (val)) | |
932 | charset.dimension = dimension; | |
933 | else | |
4ed46869 | 934 | { |
3263d5a2 KH |
935 | CHECK_NATNUM (val); |
936 | charset.dimension = XINT (val); | |
937 | if (charset.dimension < 1 || charset.dimension > 4) | |
938 | args_out_of_range_3 (val, make_number (1), make_number (4)); | |
4ed46869 KH |
939 | } |
940 | ||
3263d5a2 KH |
941 | charset.code_linear_p |
942 | = (charset.dimension == 1 | |
943 | || (charset.code_space[2] == 256 | |
944 | && (charset.dimension == 2 | |
945 | || (charset.code_space[6] == 256 | |
946 | && (charset.dimension == 3 | |
947 | || charset.code_space[10] == 256))))); | |
948 | ||
69f8de5b | 949 | if (! charset.code_linear_p) |
4ed46869 | 950 | { |
69f8de5b | 951 | charset.code_space_mask = (unsigned char *) xmalloc (256); |
33df3183 | 952 | bzero (charset.code_space_mask, 256); |
69f8de5b KH |
953 | for (i = 0; i < 4; i++) |
954 | for (j = charset.code_space[i * 4]; j <= charset.code_space[i * 4 + 1]; | |
955 | j++) | |
956 | charset.code_space_mask[j] |= (1 << i); | |
4ed46869 KH |
957 | } |
958 | ||
3263d5a2 | 959 | charset.iso_chars_96 = charset.code_space[2] == 96; |
4ed46869 | 960 | |
3263d5a2 KH |
961 | charset.min_code = (charset.code_space[0] |
962 | | (charset.code_space[4] << 8) | |
963 | | (charset.code_space[8] << 16) | |
964 | | (charset.code_space[12] << 24)); | |
965 | charset.max_code = (charset.code_space[1] | |
966 | | (charset.code_space[5] << 8) | |
967 | | (charset.code_space[9] << 16) | |
968 | | (charset.code_space[13] << 24)); | |
820ee249 | 969 | charset.char_index_offset = 0; |
8a73a704 | 970 | |
820ee249 KH |
971 | val = args[charset_arg_min_code]; |
972 | if (! NILP (val)) | |
973 | { | |
974 | unsigned code; | |
fdb82f93 | 975 | |
820ee249 KH |
976 | if (INTEGERP (val)) |
977 | code = XINT (val); | |
978 | else | |
979 | { | |
980 | CHECK_CONS (val); | |
8f924df7 KH |
981 | CHECK_NUMBER_CAR (val); |
982 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
983 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
984 | } | |
985 | if (code < charset.min_code | |
986 | || code > charset.max_code) | |
987 | args_out_of_range_3 (make_number (charset.min_code), | |
988 | make_number (charset.max_code), val); | |
989 | charset.char_index_offset = CODE_POINT_TO_INDEX (&charset, code); | |
990 | charset.min_code = code; | |
991 | } | |
3fac5a51 | 992 | |
820ee249 KH |
993 | val = args[charset_arg_max_code]; |
994 | if (! NILP (val)) | |
3fac5a51 | 995 | { |
820ee249 KH |
996 | unsigned code; |
997 | ||
998 | if (INTEGERP (val)) | |
999 | code = XINT (val); | |
1000 | else | |
1001 | { | |
1002 | CHECK_CONS (val); | |
8f924df7 KH |
1003 | CHECK_NUMBER_CAR (val); |
1004 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
1005 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
1006 | } | |
1007 | if (code < charset.min_code | |
1008 | || code > charset.max_code) | |
1009 | args_out_of_range_3 (make_number (charset.min_code), | |
1010 | make_number (charset.max_code), val); | |
1011 | charset.max_code = code; | |
3fac5a51 | 1012 | } |
3fac5a51 | 1013 | |
ecca2aad | 1014 | charset.compact_codes_p = charset.max_code < 0x10000; |
4ed46869 | 1015 | |
3263d5a2 KH |
1016 | val = args[charset_arg_invalid_code]; |
1017 | if (NILP (val)) | |
1018 | { | |
1019 | if (charset.min_code > 0) | |
1020 | charset.invalid_code = 0; | |
bbf12bb3 KH |
1021 | else |
1022 | { | |
3263d5a2 KH |
1023 | XSETINT (val, charset.max_code + 1); |
1024 | if (XINT (val) == charset.max_code + 1) | |
1025 | charset.invalid_code = charset.max_code + 1; | |
1026 | else | |
1027 | error ("Attribute :invalid-code must be specified"); | |
76d7b829 | 1028 | } |
76d7b829 | 1029 | } |
3263d5a2 KH |
1030 | else |
1031 | { | |
1032 | CHECK_NATNUM (val); | |
1033 | charset.invalid_code = XFASTINT (val); | |
1034 | } | |
4ed46869 | 1035 | |
3263d5a2 KH |
1036 | val = args[charset_arg_iso_final]; |
1037 | if (NILP (val)) | |
1038 | charset.iso_final = -1; | |
1039 | else | |
1040 | { | |
1041 | CHECK_NUMBER (val); | |
1042 | if (XINT (val) < '0' || XINT (val) > 127) | |
1043 | error ("Invalid iso-final-char: %d", XINT (val)); | |
1044 | charset.iso_final = XINT (val); | |
1045 | } | |
4ed46869 | 1046 | |
3263d5a2 KH |
1047 | val = args[charset_arg_iso_revision]; |
1048 | if (NILP (val)) | |
1049 | charset.iso_revision = -1; | |
1050 | else | |
4ed46869 | 1051 | { |
3263d5a2 KH |
1052 | CHECK_NUMBER (val); |
1053 | if (XINT (val) > 63) | |
1054 | args_out_of_range (make_number (63), val); | |
1055 | charset.iso_revision = XINT (val); | |
4ed46869 | 1056 | } |
4ed46869 | 1057 | |
3263d5a2 KH |
1058 | val = args[charset_arg_emacs_mule_id]; |
1059 | if (NILP (val)) | |
1060 | charset.emacs_mule_id = -1; | |
4ed46869 KH |
1061 | else |
1062 | { | |
3263d5a2 KH |
1063 | CHECK_NATNUM (val); |
1064 | if ((XINT (val) > 0 && XINT (val) <= 128) || XINT (val) >= 256) | |
1065 | error ("Invalid emacs-mule-id: %d", XINT (val)); | |
1066 | charset.emacs_mule_id = XINT (val); | |
c83ef371 | 1067 | } |
f6302ac9 | 1068 | |
3263d5a2 | 1069 | charset.ascii_compatible_p = ! NILP (args[charset_arg_ascii_compatible_p]); |
1d67c29b | 1070 | |
3263d5a2 | 1071 | charset.supplementary_p = ! NILP (args[charset_arg_supplementary_p]); |
4ed46869 | 1072 | |
3263d5a2 KH |
1073 | charset.unified_p = 0; |
1074 | ||
1075 | bzero (charset.fast_map, sizeof (charset.fast_map)); | |
1076 | ||
1077 | if (! NILP (args[charset_arg_code_offset])) | |
1078 | { | |
1079 | val = args[charset_arg_code_offset]; | |
1080 | CHECK_NUMBER (val); | |
1081 | ||
1082 | charset.method = CHARSET_METHOD_OFFSET; | |
1083 | charset.code_offset = XINT (val); | |
1084 | ||
1085 | i = CODE_POINT_TO_INDEX (&charset, charset.min_code); | |
1086 | charset.min_char = i + charset.code_offset; | |
1087 | i = CODE_POINT_TO_INDEX (&charset, charset.max_code); | |
1088 | charset.max_char = i + charset.code_offset; | |
1089 | if (charset.max_char > MAX_CHAR) | |
1090 | error ("Unsupported max char: %d", charset.max_char); | |
1091 | ||
f148205f KH |
1092 | i = (charset.min_char >> 7) << 7; |
1093 | for (; i < 0x10000 && i <= charset.max_char; i += 128) | |
3263d5a2 | 1094 | CHARSET_FAST_MAP_SET (i, charset.fast_map); |
f148205f | 1095 | i = (i >> 12) << 12; |
3263d5a2 KH |
1096 | for (; i <= charset.max_char; i += 0x1000) |
1097 | CHARSET_FAST_MAP_SET (i, charset.fast_map); | |
3620330b KH |
1098 | if (charset.code_offset == 0 && charset.max_char >= 0x80) |
1099 | charset.ascii_compatible_p = 1; | |
3263d5a2 KH |
1100 | } |
1101 | else if (! NILP (args[charset_arg_map])) | |
1102 | { | |
1103 | val = args[charset_arg_map]; | |
1104 | ASET (attrs, charset_map, val); | |
ecca2aad | 1105 | charset.method = CHARSET_METHOD_MAP; |
3263d5a2 | 1106 | } |
374c5cfd | 1107 | else if (! NILP (args[charset_arg_subset])) |
3263d5a2 | 1108 | { |
374c5cfd KH |
1109 | Lisp_Object parent; |
1110 | Lisp_Object parent_min_code, parent_max_code, parent_code_offset; | |
1111 | struct charset *parent_charset; | |
1112 | ||
1113 | val = args[charset_arg_subset]; | |
1114 | parent = Fcar (val); | |
1115 | CHECK_CHARSET_GET_CHARSET (parent, parent_charset); | |
1116 | parent_min_code = Fnth (make_number (1), val); | |
1117 | CHECK_NATNUM (parent_min_code); | |
1118 | parent_max_code = Fnth (make_number (2), val); | |
1119 | CHECK_NATNUM (parent_max_code); | |
1120 | parent_code_offset = Fnth (make_number (3), val); | |
1121 | CHECK_NUMBER (parent_code_offset); | |
1122 | val = Fmake_vector (make_number (4), Qnil); | |
1123 | ASET (val, 0, make_number (parent_charset->id)); | |
1124 | ASET (val, 1, parent_min_code); | |
1125 | ASET (val, 2, parent_max_code); | |
1126 | ASET (val, 3, parent_code_offset); | |
1127 | ASET (attrs, charset_subset, val); | |
1128 | ||
1129 | charset.method = CHARSET_METHOD_SUBSET; | |
1130 | /* Here, we just copy the parent's fast_map. It's not accurate, | |
1131 | but at least it works for quickly detecting which character | |
1132 | DOESN'T belong to this charset. */ | |
1133 | for (i = 0; i < 190; i++) | |
1134 | charset.fast_map[i] = parent_charset->fast_map[i]; | |
1135 | ||
1136 | /* We also copy these for parents. */ | |
1137 | charset.min_char = parent_charset->min_char; | |
1138 | charset.max_char = parent_charset->max_char; | |
1139 | } | |
1140 | else if (! NILP (args[charset_arg_superset])) | |
0282eb69 | 1141 | { |
374c5cfd KH |
1142 | val = args[charset_arg_superset]; |
1143 | charset.method = CHARSET_METHOD_SUPERSET; | |
3263d5a2 | 1144 | val = Fcopy_sequence (val); |
374c5cfd | 1145 | ASET (attrs, charset_superset, val); |
3263d5a2 KH |
1146 | |
1147 | charset.min_char = MAX_CHAR; | |
1148 | charset.max_char = 0; | |
1149 | for (; ! NILP (val); val = Fcdr (val)) | |
0282eb69 | 1150 | { |
3263d5a2 KH |
1151 | Lisp_Object elt, car_part, cdr_part; |
1152 | int this_id, offset; | |
1153 | struct charset *this_charset; | |
2e344af3 | 1154 | |
3263d5a2 KH |
1155 | elt = Fcar (val); |
1156 | if (CONSP (elt)) | |
2e344af3 | 1157 | { |
3263d5a2 KH |
1158 | car_part = XCAR (elt); |
1159 | cdr_part = XCDR (elt); | |
1160 | CHECK_CHARSET_GET_ID (car_part, this_id); | |
1161 | CHECK_NUMBER (cdr_part); | |
1162 | offset = XINT (cdr_part); | |
177c0ea7 | 1163 | } |
3263d5a2 | 1164 | else |
4ed46869 | 1165 | { |
3263d5a2 KH |
1166 | CHECK_CHARSET_GET_ID (elt, this_id); |
1167 | offset = 0; | |
4ed46869 | 1168 | } |
3263d5a2 KH |
1169 | XSETCAR (val, Fcons (make_number (this_id), make_number (offset))); |
1170 | ||
1171 | this_charset = CHARSET_FROM_ID (this_id); | |
1172 | if (charset.min_char > this_charset->min_char) | |
1173 | charset.min_char = this_charset->min_char; | |
1174 | if (charset.max_char < this_charset->max_char) | |
1175 | charset.max_char = this_charset->max_char; | |
1176 | for (i = 0; i < 190; i++) | |
1177 | charset.fast_map[i] |= this_charset->fast_map[i]; | |
0282eb69 | 1178 | } |
0282eb69 | 1179 | } |
2e344af3 | 1180 | else |
3263d5a2 | 1181 | error ("None of :code-offset, :map, :parents are specified"); |
05505664 | 1182 | |
3263d5a2 KH |
1183 | val = args[charset_arg_unify_map]; |
1184 | if (! NILP (val) && !STRINGP (val)) | |
1185 | CHECK_VECTOR (val); | |
1186 | ASET (attrs, charset_unify_map, val); | |
05505664 | 1187 | |
3263d5a2 KH |
1188 | CHECK_LIST (args[charset_arg_plist]); |
1189 | ASET (attrs, charset_plist, args[charset_arg_plist]); | |
4ed46869 | 1190 | |
3263d5a2 KH |
1191 | charset.hash_index = hash_lookup (hash_table, args[charset_arg_name], |
1192 | &hash_code); | |
1193 | if (charset.hash_index >= 0) | |
1194 | { | |
1195 | new_definition_p = 0; | |
4f65af01 | 1196 | id = XFASTINT (CHARSET_SYMBOL_ID (args[charset_arg_name])); |
3263d5a2 KH |
1197 | HASH_VALUE (hash_table, charset.hash_index) = attrs; |
1198 | } | |
1a45ff10 | 1199 | else |
3263d5a2 KH |
1200 | { |
1201 | charset.hash_index = hash_put (hash_table, args[charset_arg_name], attrs, | |
1202 | hash_code); | |
1203 | if (charset_table_used == charset_table_size) | |
1204 | { | |
2fe1edd1 KH |
1205 | struct charset *new_table |
1206 | = (struct charset *) xmalloc (sizeof (struct charset) | |
1207 | * (charset_table_size + 16)); | |
1208 | bcopy (charset_table, new_table, | |
1209 | sizeof (struct charset) * charset_table_size); | |
1210 | charset_table_size += 16; | |
1211 | charset_table = new_table; | |
3263d5a2 KH |
1212 | } |
1213 | id = charset_table_used++; | |
3263d5a2 KH |
1214 | new_definition_p = 1; |
1215 | } | |
2e344af3 | 1216 | |
4f65af01 | 1217 | ASET (attrs, charset_id, make_number (id)); |
3263d5a2 KH |
1218 | charset.id = id; |
1219 | charset_table[id] = charset; | |
2e344af3 | 1220 | |
ecca2aad | 1221 | if (charset.method == CHARSET_METHOD_MAP) |
b8ebe9dd KH |
1222 | { |
1223 | load_charset (&charset, 0); | |
1224 | charset_table[id] = charset; | |
1225 | } | |
ecca2aad | 1226 | |
3263d5a2 | 1227 | if (charset.iso_final >= 0) |
4ed46869 | 1228 | { |
3263d5a2 KH |
1229 | ISO_CHARSET_TABLE (charset.dimension, charset.iso_chars_96, |
1230 | charset.iso_final) = id; | |
1231 | if (new_definition_p) | |
1232 | Viso_2022_charset_list = nconc2 (Viso_2022_charset_list, | |
1233 | Fcons (make_number (id), Qnil)); | |
7c7dceee KH |
1234 | if (ISO_CHARSET_TABLE (1, 0, 'J') == id) |
1235 | charset_jisx0201_roman = id; | |
1236 | else if (ISO_CHARSET_TABLE (2, 0, '@') == id) | |
1237 | charset_jisx0208_1978 = id; | |
1238 | else if (ISO_CHARSET_TABLE (2, 0, 'B') == id) | |
1239 | charset_jisx0208 = id; | |
d32320c4 KH |
1240 | else if (ISO_CHARSET_TABLE (2, 0, 'C') == id) |
1241 | charset_ksc5601 = id; | |
4ed46869 | 1242 | } |
d0cf2d48 | 1243 | |
3263d5a2 | 1244 | if (charset.emacs_mule_id >= 0) |
4ed46869 | 1245 | { |
3263d5a2 | 1246 | emacs_mule_charset[charset.emacs_mule_id] = CHARSET_FROM_ID (id); |
4f65af01 KH |
1247 | if (charset.emacs_mule_id < 0xA0) |
1248 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 1; | |
3b1ae89b KH |
1249 | else |
1250 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 2; | |
3263d5a2 KH |
1251 | if (new_definition_p) |
1252 | Vemacs_mule_charset_list = nconc2 (Vemacs_mule_charset_list, | |
1253 | Fcons (make_number (id), Qnil)); | |
4ed46869 KH |
1254 | } |
1255 | ||
3263d5a2 KH |
1256 | if (new_definition_p) |
1257 | { | |
1258 | Vcharset_list = Fcons (args[charset_arg_name], Vcharset_list); | |
8055c66a KH |
1259 | if (charset.supplementary_p) |
1260 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1261 | Fcons (make_number (id), Qnil)); | |
1262 | else | |
880820fe KH |
1263 | { |
1264 | Lisp_Object tail; | |
1265 | ||
1266 | for (tail = Vcharset_ordered_list; CONSP (tail); tail = XCDR (tail)) | |
1267 | { | |
1268 | struct charset *cs = CHARSET_FROM_ID (XINT (XCAR (tail))); | |
1269 | ||
1270 | if (cs->supplementary_p) | |
1271 | break; | |
1272 | } | |
1273 | if (EQ (tail, Vcharset_ordered_list)) | |
1274 | Vcharset_ordered_list = Fcons (make_number (id), | |
1275 | Vcharset_ordered_list); | |
1276 | else if (NILP (tail)) | |
1277 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1278 | Fcons (make_number (id), Qnil)); | |
1279 | else | |
1280 | { | |
1281 | val = Fcons (XCAR (tail), XCDR (tail)); | |
1282 | XSETCDR (tail, val); | |
1283 | XSETCAR (tail, make_number (id)); | |
1284 | } | |
1285 | } | |
dbbb237d | 1286 | charset_ordered_list_tick++; |
3263d5a2 | 1287 | } |
4ed46869 | 1288 | |
3263d5a2 | 1289 | return Qnil; |
4ed46869 KH |
1290 | } |
1291 | ||
2fe1edd1 KH |
1292 | |
1293 | /* Same as Fdefine_charset_internal but arguments are more convenient | |
1294 | to call from C (typically in syms_of_charset). This can define a | |
1295 | charset of `offset' method only. Return the ID of the new | |
1296 | charset. */ | |
1297 | ||
1298 | static int | |
1299 | define_charset_internal (name, dimension, code_space, min_code, max_code, | |
1300 | iso_final, iso_revision, emacs_mule_id, | |
7acf89e6 | 1301 | ascii_compatible, supplementary, |
2fe1edd1 KH |
1302 | code_offset) |
1303 | Lisp_Object name; | |
1304 | int dimension; | |
1305 | unsigned char *code_space; | |
1306 | unsigned min_code, max_code; | |
1307 | int iso_final, iso_revision, emacs_mule_id; | |
7acf89e6 | 1308 | int ascii_compatible, supplementary; |
2fe1edd1 KH |
1309 | int code_offset; |
1310 | { | |
1311 | Lisp_Object args[charset_arg_max]; | |
1312 | Lisp_Object plist[14]; | |
1313 | Lisp_Object val; | |
1314 | int i; | |
1315 | ||
1316 | args[charset_arg_name] = name; | |
1317 | args[charset_arg_dimension] = make_number (dimension); | |
1318 | val = Fmake_vector (make_number (8), make_number (0)); | |
1319 | for (i = 0; i < 8; i++) | |
1320 | ASET (val, i, make_number (code_space[i])); | |
1321 | args[charset_arg_code_space] = val; | |
1322 | args[charset_arg_min_code] = make_number (min_code); | |
1323 | args[charset_arg_max_code] = make_number (max_code); | |
1324 | args[charset_arg_iso_final] | |
1325 | = (iso_final < 0 ? Qnil : make_number (iso_final)); | |
1326 | args[charset_arg_iso_revision] = make_number (iso_revision); | |
1327 | args[charset_arg_emacs_mule_id] | |
1328 | = (emacs_mule_id < 0 ? Qnil : make_number (emacs_mule_id)); | |
1329 | args[charset_arg_ascii_compatible_p] = ascii_compatible ? Qt : Qnil; | |
7acf89e6 | 1330 | args[charset_arg_supplementary_p] = supplementary ? Qt : Qnil; |
2fe1edd1 KH |
1331 | args[charset_arg_invalid_code] = Qnil; |
1332 | args[charset_arg_code_offset] = make_number (code_offset); | |
1333 | args[charset_arg_map] = Qnil; | |
1334 | args[charset_arg_subset] = Qnil; | |
1335 | args[charset_arg_superset] = Qnil; | |
1336 | args[charset_arg_unify_map] = Qnil; | |
1337 | ||
d67b4f80 | 1338 | plist[0] = intern_c_string (":name"); |
2fe1edd1 | 1339 | plist[1] = args[charset_arg_name]; |
d67b4f80 | 1340 | plist[2] = intern_c_string (":dimension"); |
2fe1edd1 | 1341 | plist[3] = args[charset_arg_dimension]; |
d67b4f80 | 1342 | plist[4] = intern_c_string (":code-space"); |
2fe1edd1 | 1343 | plist[5] = args[charset_arg_code_space]; |
d67b4f80 | 1344 | plist[6] = intern_c_string (":iso-final-char"); |
2fe1edd1 | 1345 | plist[7] = args[charset_arg_iso_final]; |
d67b4f80 | 1346 | plist[8] = intern_c_string (":emacs-mule-id"); |
2fe1edd1 | 1347 | plist[9] = args[charset_arg_emacs_mule_id]; |
d67b4f80 | 1348 | plist[10] = intern_c_string (":ascii-compatible-p"); |
2fe1edd1 | 1349 | plist[11] = args[charset_arg_ascii_compatible_p]; |
d67b4f80 | 1350 | plist[12] = intern_c_string (":code-offset"); |
2fe1edd1 KH |
1351 | plist[13] = args[charset_arg_code_offset]; |
1352 | ||
1353 | args[charset_arg_plist] = Flist (14, plist); | |
1354 | Fdefine_charset_internal (charset_arg_max, args); | |
1355 | ||
1356 | return XINT (CHARSET_SYMBOL_ID (name)); | |
1357 | } | |
1358 | ||
1359 | ||
3263d5a2 KH |
1360 | DEFUN ("define-charset-alias", Fdefine_charset_alias, |
1361 | Sdefine_charset_alias, 2, 2, 0, | |
1362 | doc: /* Define ALIAS as an alias for charset CHARSET. */) | |
1363 | (alias, charset) | |
1364 | Lisp_Object alias, charset; | |
4ed46869 | 1365 | { |
3263d5a2 KH |
1366 | Lisp_Object attr; |
1367 | ||
1368 | CHECK_CHARSET_GET_ATTR (charset, attr); | |
1369 | Fputhash (alias, attr, Vcharset_hash_table); | |
528623a0 | 1370 | Vcharset_list = Fcons (alias, Vcharset_list); |
3263d5a2 KH |
1371 | return Qnil; |
1372 | } | |
4ed46869 | 1373 | |
4ed46869 | 1374 | |
3263d5a2 | 1375 | DEFUN ("charset-plist", Fcharset_plist, Scharset_plist, 1, 1, 0, |
56a46d1d | 1376 | doc: /* Return the property list of CHARSET. */) |
3263d5a2 KH |
1377 | (charset) |
1378 | Lisp_Object charset; | |
1379 | { | |
1380 | Lisp_Object attrs; | |
1381 | ||
1382 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1383 | return CHARSET_ATTR_PLIST (attrs); | |
1384 | } | |
1385 | ||
1386 | ||
1387 | DEFUN ("set-charset-plist", Fset_charset_plist, Sset_charset_plist, 2, 2, 0, | |
1388 | doc: /* Set CHARSET's property list to PLIST. */) | |
1389 | (charset, plist) | |
1390 | Lisp_Object charset, plist; | |
1391 | { | |
1392 | Lisp_Object attrs; | |
1393 | ||
1394 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1395 | CHARSET_ATTR_PLIST (attrs) = plist; | |
1396 | return plist; | |
1397 | } | |
1398 | ||
1399 | ||
dbbb237d | 1400 | DEFUN ("unify-charset", Funify_charset, Sunify_charset, 1, 3, 0, |
56a46d1d DL |
1401 | doc: /* Unify characters of CHARSET with Unicode. |
1402 | This means reading the relevant file and installing the table defined | |
dbbb237d KH |
1403 | by CHARSET's `:unify-map' property. |
1404 | ||
64165ae2 DL |
1405 | Optional second arg UNIFY-MAP is a file name string or a vector. It has |
1406 | the same meaning as the `:unify-map' attribute in the function | |
dbbb237d KH |
1407 | `define-charset' (which see). |
1408 | ||
1409 | Optional third argument DEUNIFY, if non-nil, means to de-unify CHARSET. */) | |
1410 | (charset, unify_map, deunify) | |
1411 | Lisp_Object charset, unify_map, deunify; | |
8a73a704 | 1412 | { |
3263d5a2 KH |
1413 | int id; |
1414 | struct charset *cs; | |
8f924df7 | 1415 | |
3263d5a2 KH |
1416 | CHECK_CHARSET_GET_ID (charset, id); |
1417 | cs = CHARSET_FROM_ID (id); | |
dbbb237d KH |
1418 | if (NILP (deunify) |
1419 | ? CHARSET_UNIFIED_P (cs) && ! NILP (CHARSET_DEUNIFIER (cs)) | |
1420 | : ! CHARSET_UNIFIED_P (cs)) | |
3263d5a2 | 1421 | return Qnil; |
dbbb237d | 1422 | |
3263d5a2 | 1423 | CHARSET_UNIFIED_P (cs) = 0; |
dbbb237d KH |
1424 | if (NILP (deunify)) |
1425 | { | |
ecca2aad KH |
1426 | if (CHARSET_METHOD (cs) != CHARSET_METHOD_OFFSET |
1427 | || CHARSET_CODE_OFFSET (cs) < 0x110000) | |
8f924df7 | 1428 | error ("Can't unify charset: %s", SDATA (SYMBOL_NAME (charset))); |
dbbb237d KH |
1429 | if (NILP (unify_map)) |
1430 | unify_map = CHARSET_UNIFY_MAP (cs); | |
dbbb237d | 1431 | else |
ecca2aad KH |
1432 | { |
1433 | if (! STRINGP (unify_map) && ! VECTORP (unify_map)) | |
1434 | signal_error ("Bad unify-map", unify_map); | |
1435 | CHARSET_UNIFY_MAP (cs) = unify_map; | |
1436 | } | |
1437 | if (NILP (Vchar_unify_table)) | |
1438 | Vchar_unify_table = Fmake_char_table (Qnil, Qnil); | |
1439 | char_table_set_range (Vchar_unify_table, | |
1440 | cs->min_char, cs->max_char, charset); | |
dbbb237d KH |
1441 | CHARSET_UNIFIED_P (cs) = 1; |
1442 | } | |
1443 | else if (CHAR_TABLE_P (Vchar_unify_table)) | |
1444 | { | |
1445 | int min_code = CHARSET_MIN_CODE (cs); | |
1446 | int max_code = CHARSET_MAX_CODE (cs); | |
1447 | int min_char = DECODE_CHAR (cs, min_code); | |
1448 | int max_char = DECODE_CHAR (cs, max_code); | |
8f924df7 | 1449 | |
dbbb237d KH |
1450 | char_table_set_range (Vchar_unify_table, min_char, max_char, Qnil); |
1451 | } | |
8f924df7 | 1452 | |
3263d5a2 | 1453 | return Qnil; |
8a73a704 KH |
1454 | } |
1455 | ||
3fac5a51 KH |
1456 | DEFUN ("get-unused-iso-final-char", Fget_unused_iso_final_char, |
1457 | Sget_unused_iso_final_char, 2, 2, 0, | |
3263d5a2 | 1458 | doc: /* |
d0cf2d48 | 1459 | Return an unused ISO final char for a charset of DIMENSION and CHARS. |
fdb82f93 PJ |
1460 | DIMENSION is the number of bytes to represent a character: 1 or 2. |
1461 | CHARS is the number of characters in a dimension: 94 or 96. | |
1462 | ||
1463 | This final char is for private use, thus the range is `0' (48) .. `?' (63). | |
1721b6af | 1464 | If there's no unused final char for the specified kind of charset, |
fdb82f93 PJ |
1465 | return nil. */) |
1466 | (dimension, chars) | |
3fac5a51 KH |
1467 | Lisp_Object dimension, chars; |
1468 | { | |
1469 | int final_char; | |
1470 | ||
b7826503 PJ |
1471 | CHECK_NUMBER (dimension); |
1472 | CHECK_NUMBER (chars); | |
3263d5a2 KH |
1473 | if (XINT (dimension) != 1 && XINT (dimension) != 2 && XINT (dimension) != 3) |
1474 | args_out_of_range_3 (dimension, make_number (1), make_number (3)); | |
3fac5a51 | 1475 | if (XINT (chars) != 94 && XINT (chars) != 96) |
3263d5a2 | 1476 | args_out_of_range_3 (chars, make_number (94), make_number (96)); |
3fac5a51 | 1477 | for (final_char = '0'; final_char <= '?'; final_char++) |
3263d5a2 KH |
1478 | if (ISO_CHARSET_TABLE (XINT (dimension), XINT (chars), final_char) < 0) |
1479 | break; | |
3fac5a51 KH |
1480 | return (final_char <= '?' ? make_number (final_char) : Qnil); |
1481 | } | |
1482 | ||
3263d5a2 KH |
1483 | static void |
1484 | check_iso_charset_parameter (dimension, chars, final_char) | |
1485 | Lisp_Object dimension, chars, final_char; | |
4ed46869 | 1486 | { |
3263d5a2 KH |
1487 | CHECK_NATNUM (dimension); |
1488 | CHECK_NATNUM (chars); | |
1489 | CHECK_NATNUM (final_char); | |
4ed46869 | 1490 | |
3263d5a2 KH |
1491 | if (XINT (dimension) > 3) |
1492 | error ("Invalid DIMENSION %d, it should be 1, 2, or 3", XINT (dimension)); | |
4ed46869 KH |
1493 | if (XINT (chars) != 94 && XINT (chars) != 96) |
1494 | error ("Invalid CHARS %d, it should be 94 or 96", XINT (chars)); | |
3263d5a2 | 1495 | if (XINT (final_char) < '0' || XINT (final_char) > '~') |
4ed46869 | 1496 | error ("Invalid FINAL-CHAR %c, it should be `0'..`~'", XINT (chars)); |
3263d5a2 KH |
1497 | } |
1498 | ||
1499 | ||
1500 | DEFUN ("declare-equiv-charset", Fdeclare_equiv_charset, Sdeclare_equiv_charset, | |
1501 | 4, 4, 0, | |
cefd8c4f KH |
1502 | doc: /* Declare an equivalent charset for ISO-2022 decoding. |
1503 | ||
1504 | On decoding by an ISO-2022 base coding system, when a charset | |
1505 | specified by DIMENSION, CHARS, and FINAL-CHAR is designated, behave as | |
1506 | if CHARSET is designated instead. */) | |
3263d5a2 KH |
1507 | (dimension, chars, final_char, charset) |
1508 | Lisp_Object dimension, chars, final_char, charset; | |
1509 | { | |
1510 | int id; | |
82215ce9 | 1511 | int chars_flag; |
4ed46869 | 1512 | |
3263d5a2 KH |
1513 | CHECK_CHARSET_GET_ID (charset, id); |
1514 | check_iso_charset_parameter (dimension, chars, final_char); | |
82215ce9 KH |
1515 | chars_flag = XINT (chars) == 96; |
1516 | ISO_CHARSET_TABLE (XINT (dimension), chars_flag, XINT (final_char)) = id; | |
4ed46869 KH |
1517 | return Qnil; |
1518 | } | |
1519 | ||
3263d5a2 | 1520 | |
2e344af3 KH |
1521 | /* Return information about charsets in the text at PTR of NBYTES |
1522 | bytes, which are NCHARS characters. The value is: | |
f6302ac9 | 1523 | |
cfe34140 | 1524 | 0: Each character is represented by one byte. This is always |
3263d5a2 KH |
1525 | true for a unibyte string. For a multibyte string, true if |
1526 | it contains only ASCII characters. | |
1527 | ||
28c026cd DL |
1528 | 1: No charsets other than ascii, control-1, and latin-1 are |
1529 | found. | |
1d67c29b | 1530 | |
3263d5a2 KH |
1531 | 2: Otherwise. |
1532 | */ | |
4ed46869 KH |
1533 | |
1534 | int | |
3263d5a2 KH |
1535 | string_xstring_p (string) |
1536 | Lisp_Object string; | |
4ed46869 | 1537 | { |
8f924df7 KH |
1538 | const unsigned char *p = SDATA (string); |
1539 | const unsigned char *endp = p + SBYTES (string); | |
3263d5a2 | 1540 | |
8f924df7 | 1541 | if (SCHARS (string) == SBYTES (string)) |
3263d5a2 KH |
1542 | return 0; |
1543 | ||
3263d5a2 | 1544 | while (p < endp) |
0282eb69 | 1545 | { |
3263d5a2 | 1546 | int c = STRING_CHAR_ADVANCE (p); |
2e344af3 | 1547 | |
3cc67a4d | 1548 | if (c >= 0x100) |
3263d5a2 | 1549 | return 2; |
0282eb69 | 1550 | } |
3263d5a2 KH |
1551 | return 1; |
1552 | } | |
05505664 | 1553 | |
05505664 | 1554 | |
3263d5a2 | 1555 | /* Find charsets in the string at PTR of NCHARS and NBYTES. |
4ed46869 | 1556 | |
3cc67a4d KH |
1557 | CHARSETS is a vector. If Nth element is non-nil, it means the |
1558 | charset whose id is N is already found. | |
2e344af3 | 1559 | |
3263d5a2 | 1560 | It may lookup a translation table TABLE if supplied. */ |
2e344af3 | 1561 | |
3263d5a2 | 1562 | static void |
3cc67a4d | 1563 | find_charsets_in_text (ptr, nchars, nbytes, charsets, table, multibyte) |
dbbb237d | 1564 | const unsigned char *ptr; |
42ca828e | 1565 | EMACS_INT nchars, nbytes; |
3263d5a2 | 1566 | Lisp_Object charsets, table; |
3cc67a4d | 1567 | int multibyte; |
3263d5a2 | 1568 | { |
dbbb237d | 1569 | const unsigned char *pend = ptr + nbytes; |
3263d5a2 KH |
1570 | |
1571 | if (nchars == nbytes) | |
3263d5a2 | 1572 | { |
3cc67a4d KH |
1573 | if (multibyte) |
1574 | ASET (charsets, charset_ascii, Qt); | |
1575 | else | |
1576 | while (ptr < pend) | |
1577 | { | |
1578 | int c = *ptr++; | |
1579 | ||
1580 | if (!NILP (table)) | |
1581 | c = translate_char (table, c); | |
1582 | if (ASCII_BYTE_P (c)) | |
1583 | ASET (charsets, charset_ascii, Qt); | |
1584 | else | |
1585 | ASET (charsets, charset_eight_bit, Qt); | |
1586 | } | |
1587 | } | |
1588 | else | |
1589 | { | |
1590 | while (ptr < pend) | |
3263d5a2 | 1591 | { |
3cc67a4d KH |
1592 | int c = STRING_CHAR_ADVANCE (ptr); |
1593 | struct charset *charset; | |
3263d5a2 | 1594 | |
3cc67a4d KH |
1595 | if (!NILP (table)) |
1596 | c = translate_char (table, c); | |
1597 | charset = CHAR_CHARSET (c); | |
1598 | ASET (charsets, CHARSET_ID (charset), Qt); | |
4ed46869 | 1599 | } |
4ed46869 | 1600 | } |
4ed46869 KH |
1601 | } |
1602 | ||
1603 | DEFUN ("find-charset-region", Ffind_charset_region, Sfind_charset_region, | |
23d2a7f1 | 1604 | 2, 3, 0, |
fdb82f93 PJ |
1605 | doc: /* Return a list of charsets in the region between BEG and END. |
1606 | BEG and END are buffer positions. | |
1607 | Optional arg TABLE if non-nil is a translation table to look up. | |
1608 | ||
fdb82f93 PJ |
1609 | If the current buffer is unibyte, the returned list may contain |
1610 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) | |
1611 | (beg, end, table) | |
23d2a7f1 | 1612 | Lisp_Object beg, end, table; |
4ed46869 | 1613 | { |
3263d5a2 | 1614 | Lisp_Object charsets; |
42ca828e DL |
1615 | EMACS_INT from, from_byte, to, stop, stop_byte; |
1616 | int i; | |
4ed46869 | 1617 | Lisp_Object val; |
3cc67a4d | 1618 | int multibyte = ! NILP (current_buffer->enable_multibyte_characters); |
4ed46869 KH |
1619 | |
1620 | validate_region (&beg, &end); | |
1621 | from = XFASTINT (beg); | |
1622 | stop = to = XFASTINT (end); | |
6ae1f27e | 1623 | |
4ed46869 | 1624 | if (from < GPT && GPT < to) |
6ae1f27e RS |
1625 | { |
1626 | stop = GPT; | |
1627 | stop_byte = GPT_BYTE; | |
1628 | } | |
1629 | else | |
1630 | stop_byte = CHAR_TO_BYTE (stop); | |
1631 | ||
1632 | from_byte = CHAR_TO_BYTE (from); | |
1633 | ||
3263d5a2 | 1634 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
4ed46869 KH |
1635 | while (1) |
1636 | { | |
3263d5a2 | 1637 | find_charsets_in_text (BYTE_POS_ADDR (from_byte), stop - from, |
3cc67a4d KH |
1638 | stop_byte - from_byte, charsets, table, |
1639 | multibyte); | |
4ed46869 | 1640 | if (stop < to) |
6ae1f27e RS |
1641 | { |
1642 | from = stop, from_byte = stop_byte; | |
1643 | stop = to, stop_byte = CHAR_TO_BYTE (stop); | |
1644 | } | |
4ed46869 KH |
1645 | else |
1646 | break; | |
1647 | } | |
6ae1f27e | 1648 | |
4ed46869 | 1649 | val = Qnil; |
3263d5a2 | 1650 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1651 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1652 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1653 | return val; |
1654 | } | |
1655 | ||
1656 | DEFUN ("find-charset-string", Ffind_charset_string, Sfind_charset_string, | |
23d2a7f1 | 1657 | 1, 2, 0, |
fdb82f93 PJ |
1658 | doc: /* Return a list of charsets in STR. |
1659 | Optional arg TABLE if non-nil is a translation table to look up. | |
1660 | ||
fdb82f93 | 1661 | If STR is unibyte, the returned list may contain |
3263d5a2 | 1662 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) |
fdb82f93 | 1663 | (str, table) |
23d2a7f1 | 1664 | Lisp_Object str, table; |
4ed46869 | 1665 | { |
3263d5a2 | 1666 | Lisp_Object charsets; |
4ed46869 KH |
1667 | int i; |
1668 | Lisp_Object val; | |
1669 | ||
b7826503 | 1670 | CHECK_STRING (str); |
87b089ad | 1671 | |
3263d5a2 | 1672 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
8f924df7 | 1673 | find_charsets_in_text (SDATA (str), SCHARS (str), SBYTES (str), |
3cc67a4d KH |
1674 | charsets, table, |
1675 | STRING_MULTIBYTE (str)); | |
4ed46869 | 1676 | val = Qnil; |
3263d5a2 | 1677 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1678 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1679 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1680 | return val; |
1681 | } | |
2e344af3 | 1682 | |
4ed46869 | 1683 | \f |
3263d5a2 | 1684 | |
ecca2aad KH |
1685 | /* Return a unified character code for C (>= 0x110000). VAL is a |
1686 | value of Vchar_unify_table for C; i.e. it is nil, an integer, or a | |
1687 | charset symbol. */ | |
1688 | int | |
1689 | maybe_unify_char (c, val) | |
1690 | int c; | |
1691 | Lisp_Object val; | |
1692 | { | |
1693 | struct charset *charset; | |
1694 | ||
1695 | if (INTEGERP (val)) | |
1696 | return XINT (val); | |
1697 | if (NILP (val)) | |
1698 | return c; | |
1699 | ||
1700 | CHECK_CHARSET_GET_CHARSET (val, charset); | |
1701 | load_charset (charset, 1); | |
1702 | if (! inhibit_load_charset_map) | |
1703 | { | |
1704 | val = CHAR_TABLE_REF (Vchar_unify_table, c); | |
1705 | if (! NILP (val)) | |
1706 | c = XINT (val); | |
1707 | } | |
1708 | else | |
1709 | { | |
1710 | int code_index = c - CHARSET_CODE_OFFSET (charset); | |
1711 | int unified = GET_TEMP_CHARSET_WORK_DECODER (code_index); | |
1712 | ||
1713 | if (unified > 0) | |
1714 | c = unified; | |
1715 | } | |
1716 | return c; | |
1717 | } | |
1718 | ||
1719 | ||
3263d5a2 KH |
1720 | /* Return a character correponding to the code-point CODE of |
1721 | CHARSET. */ | |
1722 | ||
1723 | int | |
1724 | decode_char (charset, code) | |
1725 | struct charset *charset; | |
1726 | unsigned code; | |
4ed46869 | 1727 | { |
3263d5a2 KH |
1728 | int c, char_index; |
1729 | enum charset_method method = CHARSET_METHOD (charset); | |
ac4137cc | 1730 | |
3263d5a2 KH |
1731 | if (code < CHARSET_MIN_CODE (charset) || code > CHARSET_MAX_CODE (charset)) |
1732 | return -1; | |
4ed46869 | 1733 | |
374c5cfd | 1734 | if (method == CHARSET_METHOD_SUBSET) |
2e344af3 | 1735 | { |
374c5cfd KH |
1736 | Lisp_Object subset_info; |
1737 | ||
1738 | subset_info = CHARSET_SUBSET (charset); | |
1739 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1740 | code -= XINT (AREF (subset_info, 3)); | |
1741 | if (code < XFASTINT (AREF (subset_info, 1)) | |
1742 | || code > XFASTINT (AREF (subset_info, 2))) | |
1743 | c = -1; | |
1744 | else | |
1745 | c = DECODE_CHAR (charset, code); | |
2e344af3 | 1746 | } |
374c5cfd | 1747 | else if (method == CHARSET_METHOD_SUPERSET) |
2e344af3 | 1748 | { |
3263d5a2 | 1749 | Lisp_Object parents; |
4ed46869 | 1750 | |
374c5cfd | 1751 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 KH |
1752 | c = -1; |
1753 | for (; CONSP (parents); parents = XCDR (parents)) | |
1754 | { | |
1755 | int id = XINT (XCAR (XCAR (parents))); | |
1756 | int code_offset = XINT (XCDR (XCAR (parents))); | |
374c5cfd | 1757 | unsigned this_code = code - code_offset; |
4ed46869 | 1758 | |
3263d5a2 KH |
1759 | charset = CHARSET_FROM_ID (id); |
1760 | if ((c = DECODE_CHAR (charset, this_code)) >= 0) | |
1761 | break; | |
1762 | } | |
1763 | } | |
1764 | else | |
ac4137cc | 1765 | { |
3263d5a2 | 1766 | char_index = CODE_POINT_TO_INDEX (charset, code); |
69f8de5b KH |
1767 | if (char_index < 0) |
1768 | return -1; | |
4ed46869 | 1769 | |
3263d5a2 | 1770 | if (method == CHARSET_METHOD_MAP) |
ac4137cc | 1771 | { |
3263d5a2 | 1772 | Lisp_Object decoder; |
4ed46869 | 1773 | |
3263d5a2 KH |
1774 | decoder = CHARSET_DECODER (charset); |
1775 | if (! VECTORP (decoder)) | |
ecca2aad KH |
1776 | { |
1777 | load_charset (charset, 1); | |
1778 | decoder = CHARSET_DECODER (charset); | |
1779 | } | |
1780 | if (VECTORP (decoder)) | |
1781 | c = XINT (AREF (decoder, char_index)); | |
1782 | else | |
1783 | c = GET_TEMP_CHARSET_WORK_DECODER (char_index); | |
ac4137cc | 1784 | } |
ecca2aad | 1785 | else /* method == CHARSET_METHOD_OFFSET */ |
ac4137cc | 1786 | { |
3263d5a2 | 1787 | c = char_index + CHARSET_CODE_OFFSET (charset); |
ecca2aad KH |
1788 | if (CHARSET_UNIFIED_P (charset) |
1789 | && c > MAX_UNICODE_CHAR) | |
1790 | MAYBE_UNIFY_CHAR (c); | |
ac4137cc KH |
1791 | } |
1792 | } | |
4ed46869 | 1793 | |
3263d5a2 | 1794 | return c; |
90d7b74e KH |
1795 | } |
1796 | ||
374c5cfd KH |
1797 | /* Variable used temporarily by the macro ENCODE_CHAR. */ |
1798 | Lisp_Object charset_work; | |
4ed46869 | 1799 | |
3263d5a2 | 1800 | /* Return a code-point of CHAR in CHARSET. If CHAR doesn't belong to |
28c026cd DL |
1801 | CHARSET, return CHARSET_INVALID_CODE (CHARSET). If STRICT is true, |
1802 | use CHARSET's strict_max_char instead of max_char. */ | |
4ed46869 | 1803 | |
3263d5a2 KH |
1804 | unsigned |
1805 | encode_char (charset, c) | |
1806 | struct charset *charset; | |
9b6a601f | 1807 | int c; |
9d3d8cba | 1808 | { |
3263d5a2 KH |
1809 | unsigned code; |
1810 | enum charset_method method = CHARSET_METHOD (charset); | |
9d3d8cba | 1811 | |
3263d5a2 | 1812 | if (CHARSET_UNIFIED_P (charset)) |
ac4137cc | 1813 | { |
6809ca75 | 1814 | Lisp_Object deunifier; |
ecca2aad | 1815 | int code_index = -1; |
4ed46869 | 1816 | |
3263d5a2 KH |
1817 | deunifier = CHARSET_DEUNIFIER (charset); |
1818 | if (! CHAR_TABLE_P (deunifier)) | |
ac4137cc | 1819 | { |
ecca2aad | 1820 | load_charset (charset, 2); |
3263d5a2 | 1821 | deunifier = CHARSET_DEUNIFIER (charset); |
ac4137cc | 1822 | } |
ecca2aad KH |
1823 | if (CHAR_TABLE_P (deunifier)) |
1824 | { | |
1825 | Lisp_Object deunified = CHAR_TABLE_REF (deunifier, c); | |
1826 | ||
1827 | if (INTEGERP (deunified)) | |
1828 | code_index = XINT (deunified); | |
1829 | } | |
1830 | else | |
1831 | { | |
1832 | code_index = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
1833 | } | |
1834 | if (code_index >= 0) | |
1835 | c = CHARSET_CODE_OFFSET (charset) + code_index; | |
ac4137cc | 1836 | } |
9d3d8cba | 1837 | |
374c5cfd KH |
1838 | if (method == CHARSET_METHOD_SUBSET) |
1839 | { | |
1840 | Lisp_Object subset_info; | |
1841 | struct charset *this_charset; | |
1842 | ||
1843 | subset_info = CHARSET_SUBSET (charset); | |
1844 | this_charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1845 | code = ENCODE_CHAR (this_charset, c); | |
1846 | if (code == CHARSET_INVALID_CODE (this_charset) | |
1847 | || code < XFASTINT (AREF (subset_info, 1)) | |
1848 | || code > XFASTINT (AREF (subset_info, 2))) | |
1849 | return CHARSET_INVALID_CODE (charset); | |
1850 | code += XINT (AREF (subset_info, 3)); | |
1851 | return code; | |
1852 | } | |
9d3d8cba | 1853 | |
374c5cfd | 1854 | if (method == CHARSET_METHOD_SUPERSET) |
859f2b3c | 1855 | { |
3263d5a2 | 1856 | Lisp_Object parents; |
d2665018 | 1857 | |
374c5cfd | 1858 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 | 1859 | for (; CONSP (parents); parents = XCDR (parents)) |
beeedaad | 1860 | { |
3263d5a2 KH |
1861 | int id = XINT (XCAR (XCAR (parents))); |
1862 | int code_offset = XINT (XCDR (XCAR (parents))); | |
1863 | struct charset *this_charset = CHARSET_FROM_ID (id); | |
d2665018 | 1864 | |
3263d5a2 | 1865 | code = ENCODE_CHAR (this_charset, c); |
dbbb237d KH |
1866 | if (code != CHARSET_INVALID_CODE (this_charset)) |
1867 | return code + code_offset; | |
beeedaad | 1868 | } |
3263d5a2 KH |
1869 | return CHARSET_INVALID_CODE (charset); |
1870 | } | |
1bcc1567 | 1871 | |
15c85a88 KH |
1872 | if (! CHARSET_FAST_MAP_REF ((c), charset->fast_map) |
1873 | || c < CHARSET_MIN_CHAR (charset) || c > CHARSET_MAX_CHAR (charset)) | |
1874 | return CHARSET_INVALID_CODE (charset); | |
1bcc1567 | 1875 | |
3263d5a2 | 1876 | if (method == CHARSET_METHOD_MAP) |
3f62427c | 1877 | { |
3263d5a2 | 1878 | Lisp_Object encoder; |
beeedaad | 1879 | Lisp_Object val; |
9b6a601f | 1880 | |
3263d5a2 KH |
1881 | encoder = CHARSET_ENCODER (charset); |
1882 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
b8ebe9dd KH |
1883 | { |
1884 | load_charset (charset, 2); | |
1885 | encoder = CHARSET_ENCODER (charset); | |
1886 | } | |
1887 | if (CHAR_TABLE_P (encoder)) | |
ecca2aad KH |
1888 | { |
1889 | val = CHAR_TABLE_REF (encoder, c); | |
1890 | if (NILP (val)) | |
1891 | return CHARSET_INVALID_CODE (charset); | |
1892 | code = XINT (val); | |
1893 | if (! CHARSET_COMPACT_CODES_P (charset)) | |
1894 | code = INDEX_TO_CODE_POINT (charset, code); | |
1895 | } | |
1896 | else | |
1897 | { | |
1898 | code = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
1899 | code = INDEX_TO_CODE_POINT (charset, code); | |
1900 | } | |
3263d5a2 | 1901 | } |
820ee249 | 1902 | else /* method == CHARSET_METHOD_OFFSET */ |
beeedaad | 1903 | { |
ecca2aad KH |
1904 | int code_index = c - CHARSET_CODE_OFFSET (charset); |
1905 | ||
1906 | code = INDEX_TO_CODE_POINT (charset, code_index); | |
3f62427c | 1907 | } |
8ac5a9cc | 1908 | |
3263d5a2 | 1909 | return code; |
4ed46869 KH |
1910 | } |
1911 | ||
4ed46869 | 1912 | |
3263d5a2 KH |
1913 | DEFUN ("decode-char", Fdecode_char, Sdecode_char, 2, 3, 0, |
1914 | doc: /* Decode the pair of CHARSET and CODE-POINT into a character. | |
1915 | Return nil if CODE-POINT is not valid in CHARSET. | |
4ed46869 | 1916 | |
3263d5a2 | 1917 | CODE-POINT may be a cons (HIGHER-16-BIT-VALUE . LOWER-16-BIT-VALUE). |
859f2b3c | 1918 | |
3263d5a2 | 1919 | Optional argument RESTRICTION specifies a way to map the pair of CCS |
d0cf2d48 | 1920 | and CODE-POINT to a character. Currently not supported and just ignored. */) |
3263d5a2 KH |
1921 | (charset, code_point, restriction) |
1922 | Lisp_Object charset, code_point, restriction; | |
4ed46869 | 1923 | { |
3263d5a2 KH |
1924 | int c, id; |
1925 | unsigned code; | |
1926 | struct charset *charsetp; | |
859f2b3c | 1927 | |
3263d5a2 KH |
1928 | CHECK_CHARSET_GET_ID (charset, id); |
1929 | if (CONSP (code_point)) | |
1930 | { | |
8f924df7 KH |
1931 | CHECK_NATNUM_CAR (code_point); |
1932 | CHECK_NATNUM_CDR (code_point); | |
69f8de5b | 1933 | code = (XINT (XCAR (code_point)) << 16) | (XINT (XCDR (code_point))); |
3263d5a2 | 1934 | } |
4ed46869 KH |
1935 | else |
1936 | { | |
3263d5a2 KH |
1937 | CHECK_NATNUM (code_point); |
1938 | code = XINT (code_point); | |
4ed46869 | 1939 | } |
3263d5a2 KH |
1940 | charsetp = CHARSET_FROM_ID (id); |
1941 | c = DECODE_CHAR (charsetp, code); | |
1942 | return (c >= 0 ? make_number (c) : Qnil); | |
4ed46869 KH |
1943 | } |
1944 | ||
859f2b3c | 1945 | |
3263d5a2 KH |
1946 | DEFUN ("encode-char", Fencode_char, Sencode_char, 2, 3, 0, |
1947 | doc: /* Encode the character CH into a code-point of CHARSET. | |
1948 | Return nil if CHARSET doesn't include CH. | |
17e7ef1b | 1949 | |
d0cf2d48 | 1950 | Optional argument RESTRICTION specifies a way to map CH to a |
3263d5a2 KH |
1951 | code-point in CCS. Currently not supported and just ignored. */) |
1952 | (ch, charset, restriction) | |
1953 | Lisp_Object ch, charset, restriction; | |
4ed46869 | 1954 | { |
16fed1fc | 1955 | int id; |
3263d5a2 KH |
1956 | unsigned code; |
1957 | struct charset *charsetp; | |
046b1f03 | 1958 | |
3263d5a2 KH |
1959 | CHECK_CHARSET_GET_ID (charset, id); |
1960 | CHECK_NATNUM (ch); | |
3263d5a2 | 1961 | charsetp = CHARSET_FROM_ID (id); |
16fed1fc | 1962 | code = ENCODE_CHAR (charsetp, XINT (ch)); |
3263d5a2 KH |
1963 | if (code == CHARSET_INVALID_CODE (charsetp)) |
1964 | return Qnil; | |
1965 | if (code > 0x7FFFFFF) | |
1966 | return Fcons (make_number (code >> 16), make_number (code & 0xFFFF)); | |
1967 | return make_number (code); | |
beeedaad KH |
1968 | } |
1969 | ||
beeedaad | 1970 | |
b121a744 KH |
1971 | DEFUN ("make-char", Fmake_char, Smake_char, 1, 5, 0, |
1972 | doc: | |
1973 | /* Return a character of CHARSET whose position codes are CODEn. | |
1974 | ||
1975 | CODE1 through CODE4 are optional, but if you don't supply sufficient | |
1976 | position codes, it is assumed that the minimum code in each dimension | |
04c2f2c5 | 1977 | is specified. */) |
b121a744 KH |
1978 | (charset, code1, code2, code3, code4) |
1979 | Lisp_Object charset, code1, code2, code3, code4; | |
beeedaad | 1980 | { |
3263d5a2 KH |
1981 | int id, dimension; |
1982 | struct charset *charsetp; | |
b121a744 KH |
1983 | unsigned code; |
1984 | int c; | |
87b089ad | 1985 | |
3263d5a2 KH |
1986 | CHECK_CHARSET_GET_ID (charset, id); |
1987 | charsetp = CHARSET_FROM_ID (id); | |
4ed46869 | 1988 | |
b121a744 KH |
1989 | dimension = CHARSET_DIMENSION (charsetp); |
1990 | if (NILP (code1)) | |
d47073ca KH |
1991 | code = (CHARSET_ASCII_COMPATIBLE_P (charsetp) |
1992 | ? 0 : CHARSET_MIN_CODE (charsetp)); | |
3263d5a2 | 1993 | else |
859f2b3c | 1994 | { |
b121a744 KH |
1995 | CHECK_NATNUM (code1); |
1996 | if (XFASTINT (code1) >= 0x100) | |
1997 | args_out_of_range (make_number (0xFF), code1); | |
1998 | code = XFASTINT (code1); | |
859f2b3c | 1999 | |
b0a1e45e | 2000 | if (dimension > 1) |
beeedaad | 2001 | { |
b121a744 | 2002 | code <<= 8; |
b0a1e45e KH |
2003 | if (NILP (code2)) |
2004 | code |= charsetp->code_space[(dimension - 2) * 4]; | |
beeedaad | 2005 | else |
b121a744 | 2006 | { |
b0a1e45e KH |
2007 | CHECK_NATNUM (code2); |
2008 | if (XFASTINT (code2) >= 0x100) | |
2009 | args_out_of_range (make_number (0xFF), code2); | |
2010 | code |= XFASTINT (code2); | |
b121a744 | 2011 | } |
99529c2c | 2012 | |
b0a1e45e | 2013 | if (dimension > 2) |
b121a744 KH |
2014 | { |
2015 | code <<= 8; | |
b0a1e45e KH |
2016 | if (NILP (code3)) |
2017 | code |= charsetp->code_space[(dimension - 3) * 4]; | |
b121a744 KH |
2018 | else |
2019 | { | |
b0a1e45e KH |
2020 | CHECK_NATNUM (code3); |
2021 | if (XFASTINT (code3) >= 0x100) | |
2022 | args_out_of_range (make_number (0xFF), code3); | |
2023 | code |= XFASTINT (code3); | |
2024 | } | |
2025 | ||
2026 | if (dimension > 3) | |
2027 | { | |
2028 | code <<= 8; | |
2029 | if (NILP (code4)) | |
2030 | code |= charsetp->code_space[0]; | |
2031 | else | |
2032 | { | |
2033 | CHECK_NATNUM (code4); | |
2034 | if (XFASTINT (code4) >= 0x100) | |
2035 | args_out_of_range (make_number (0xFF), code4); | |
2036 | code |= XFASTINT (code4); | |
2037 | } | |
b121a744 KH |
2038 | } |
2039 | } | |
beeedaad | 2040 | } |
859f2b3c | 2041 | } |
beeedaad | 2042 | |
b121a744 KH |
2043 | if (CHARSET_ISO_FINAL (charsetp) >= 0) |
2044 | code &= 0x7F7F7F7F; | |
2045 | c = DECODE_CHAR (charsetp, code); | |
2046 | if (c < 0) | |
2047 | error ("Invalid code(s)"); | |
3263d5a2 | 2048 | return make_number (c); |
4ed46869 KH |
2049 | } |
2050 | ||
beeedaad | 2051 | |
3263d5a2 KH |
2052 | /* Return the first charset in CHARSET_LIST that contains C. |
2053 | CHARSET_LIST is a list of charset IDs. If it is nil, use | |
2054 | Vcharset_ordered_list. */ | |
beeedaad | 2055 | |
3263d5a2 KH |
2056 | struct charset * |
2057 | char_charset (c, charset_list, code_return) | |
2058 | int c; | |
2059 | Lisp_Object charset_list; | |
2060 | unsigned *code_return; | |
2e344af3 | 2061 | { |
8a1816bb KH |
2062 | int maybe_null = 0; |
2063 | ||
3263d5a2 KH |
2064 | if (NILP (charset_list)) |
2065 | charset_list = Vcharset_ordered_list; | |
8a1816bb KH |
2066 | else |
2067 | maybe_null = 1; | |
beeedaad | 2068 | |
6c652beb | 2069 | while (CONSP (charset_list)) |
2e344af3 | 2070 | { |
3263d5a2 KH |
2071 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (charset_list))); |
2072 | unsigned code = ENCODE_CHAR (charset, c); | |
beeedaad | 2073 | |
3263d5a2 | 2074 | if (code != CHARSET_INVALID_CODE (charset)) |
beeedaad | 2075 | { |
3263d5a2 KH |
2076 | if (code_return) |
2077 | *code_return = code; | |
2078 | return charset; | |
3f62427c | 2079 | } |
3263d5a2 | 2080 | charset_list = XCDR (charset_list); |
6c652beb KH |
2081 | if (c <= MAX_UNICODE_CHAR |
2082 | && EQ (charset_list, Vcharset_non_preferred_head)) | |
2083 | return CHARSET_FROM_ID (charset_unicode); | |
3f62427c | 2084 | } |
8a1816bb KH |
2085 | return (maybe_null ? NULL |
2086 | : c <= MAX_5_BYTE_CHAR ? CHARSET_FROM_ID (charset_emacs) | |
6a9c90ec | 2087 | : CHARSET_FROM_ID (charset_eight_bit)); |
3f62427c KH |
2088 | } |
2089 | ||
2e344af3 | 2090 | |
3263d5a2 | 2091 | DEFUN ("split-char", Fsplit_char, Ssplit_char, 1, 1, 0, |
3cc67a4d | 2092 | doc: |
d0cf2d48 | 2093 | /*Return list of charset and one to four position-codes of CH. |
3cc67a4d KH |
2094 | The charset is decided by the current priority order of charsets. |
2095 | A position-code is a byte value of each dimension of the code-point of | |
d0cf2d48 | 2096 | CH in the charset. */) |
3263d5a2 KH |
2097 | (ch) |
2098 | Lisp_Object ch; | |
4ed46869 | 2099 | { |
3263d5a2 KH |
2100 | struct charset *charset; |
2101 | int c, dimension; | |
2102 | unsigned code; | |
4ed46869 KH |
2103 | Lisp_Object val; |
2104 | ||
3263d5a2 KH |
2105 | CHECK_CHARACTER (ch); |
2106 | c = XFASTINT (ch); | |
2107 | charset = CHAR_CHARSET (c); | |
2108 | if (! charset) | |
3cc67a4d | 2109 | abort (); |
3263d5a2 KH |
2110 | code = ENCODE_CHAR (charset, c); |
2111 | if (code == CHARSET_INVALID_CODE (charset)) | |
2112 | abort (); | |
2113 | dimension = CHARSET_DIMENSION (charset); | |
3cc67a4d KH |
2114 | for (val = Qnil; dimension > 0; dimension--) |
2115 | { | |
2116 | val = Fcons (make_number (code & 0xFF), val); | |
2117 | code >>= 8; | |
2118 | } | |
3263d5a2 | 2119 | return Fcons (CHARSET_NAME (charset), val); |
4ed46869 KH |
2120 | } |
2121 | ||
740f080d | 2122 | |
4cb75c4b KH |
2123 | DEFUN ("char-charset", Fchar_charset, Schar_charset, 1, 2, 0, |
2124 | doc: /* Return the charset of highest priority that contains CH. | |
2125 | If optional 2nd arg RESTRICTION is non-nil, it is a list of charsets | |
2126 | from which to find the charset. It may also be a coding system. In | |
2127 | that case, find the charset from what supported by that coding system. */) | |
2128 | (ch, restriction) | |
2129 | Lisp_Object ch, restriction; | |
4ed46869 | 2130 | { |
3263d5a2 | 2131 | struct charset *charset; |
4ed46869 | 2132 | |
3263d5a2 | 2133 | CHECK_CHARACTER (ch); |
4cb75c4b KH |
2134 | if (NILP (restriction)) |
2135 | charset = CHAR_CHARSET (XINT (ch)); | |
2136 | else | |
2137 | { | |
2138 | Lisp_Object charset_list; | |
2139 | ||
2140 | if (CONSP (restriction)) | |
2141 | { | |
2142 | for (charset_list = Qnil; CONSP (restriction); | |
2143 | restriction = XCDR (restriction)) | |
2144 | { | |
2145 | int id; | |
2146 | ||
2147 | CHECK_CHARSET_GET_ID (XCAR (restriction), id); | |
2148 | charset_list = Fcons (make_number (id), charset_list); | |
2149 | } | |
2150 | charset_list = Fnreverse (charset_list); | |
2151 | } | |
2152 | else | |
2153 | charset_list = coding_system_charset_list (restriction); | |
2154 | charset = char_charset (XINT (ch), charset_list, NULL); | |
2155 | if (! charset) | |
2156 | return Qnil; | |
2157 | } | |
3263d5a2 | 2158 | return (CHARSET_NAME (charset)); |
4ed46869 KH |
2159 | } |
2160 | ||
17e7ef1b | 2161 | |
3263d5a2 KH |
2162 | DEFUN ("charset-after", Fcharset_after, Scharset_after, 0, 1, 0, |
2163 | doc: /* | |
2164 | Return charset of a character in the current buffer at position POS. | |
2165 | If POS is nil, it defauls to the current point. | |
2166 | If POS is out of range, the value is nil. */) | |
2167 | (pos) | |
2168 | Lisp_Object pos; | |
2e344af3 | 2169 | { |
3263d5a2 KH |
2170 | Lisp_Object ch; |
2171 | struct charset *charset; | |
046b1f03 | 2172 | |
3263d5a2 KH |
2173 | ch = Fchar_after (pos); |
2174 | if (! INTEGERP (ch)) | |
2175 | return ch; | |
2176 | charset = CHAR_CHARSET (XINT (ch)); | |
2177 | return (CHARSET_NAME (charset)); | |
6ae1f27e | 2178 | } |
9036eb45 | 2179 | |
87b089ad | 2180 | |
3263d5a2 KH |
2181 | DEFUN ("iso-charset", Fiso_charset, Siso_charset, 3, 3, 0, |
2182 | doc: /* | |
2183 | Return charset of ISO's specification DIMENSION, CHARS, and FINAL-CHAR. | |
2184 | ||
2185 | ISO 2022's designation sequence (escape sequence) distinguishes charsets | |
2186 | by their DIMENSION, CHARS, and FINAL-CHAR, | |
d0cf2d48 | 2187 | whereas Emacs distinguishes them by charset symbol. |
3263d5a2 KH |
2188 | See the documentation of the function `charset-info' for the meanings of |
2189 | DIMENSION, CHARS, and FINAL-CHAR. */) | |
2190 | (dimension, chars, final_char) | |
2191 | Lisp_Object dimension, chars, final_char; | |
6ae1f27e | 2192 | { |
3263d5a2 | 2193 | int id; |
82215ce9 | 2194 | int chars_flag; |
a8a35e61 | 2195 | |
3263d5a2 | 2196 | check_iso_charset_parameter (dimension, chars, final_char); |
82215ce9 KH |
2197 | chars_flag = XFASTINT (chars) == 96; |
2198 | id = ISO_CHARSET_TABLE (XFASTINT (dimension), chars_flag, | |
3263d5a2 KH |
2199 | XFASTINT (final_char)); |
2200 | return (id >= 0 ? CHARSET_NAME (CHARSET_FROM_ID (id)) : Qnil); | |
046b1f03 RS |
2201 | } |
2202 | ||
87b089ad | 2203 | |
3263d5a2 KH |
2204 | DEFUN ("clear-charset-maps", Fclear_charset_maps, Sclear_charset_maps, |
2205 | 0, 0, 0, | |
2206 | doc: /* | |
ecca2aad KH |
2207 | Internal use only. |
2208 | Clear temporary charset mapping tables. | |
2209 | It should be called only from temacs invoked for dumping. */) | |
3263d5a2 | 2210 | () |
87b089ad | 2211 | { |
ecca2aad | 2212 | if (temp_charset_work) |
87b089ad | 2213 | { |
ecca2aad KH |
2214 | free (temp_charset_work); |
2215 | temp_charset_work = NULL; | |
2e344af3 | 2216 | } |
2e344af3 | 2217 | |
ecca2aad KH |
2218 | if (CHAR_TABLE_P (Vchar_unify_table)) |
2219 | Foptimize_char_table (Vchar_unify_table, Qnil); | |
740f080d | 2220 | |
3263d5a2 | 2221 | return Qnil; |
740f080d KH |
2222 | } |
2223 | ||
8ddf5e57 DL |
2224 | DEFUN ("charset-priority-list", Fcharset_priority_list, |
2225 | Scharset_priority_list, 0, 1, 0, | |
2226 | doc: /* Return the list of charsets ordered by priority. | |
2227 | HIGHESTP non-nil means just return the highest priority one. */) | |
2228 | (highestp) | |
2229 | Lisp_Object highestp; | |
2e344af3 | 2230 | { |
8ddf5e57 | 2231 | Lisp_Object val = Qnil, list = Vcharset_ordered_list; |
2e344af3 | 2232 | |
8ddf5e57 | 2233 | if (!NILP (highestp)) |
16fed1fc | 2234 | return CHARSET_NAME (CHARSET_FROM_ID (XINT (Fcar (list)))); |
2e344af3 | 2235 | |
8ddf5e57 | 2236 | while (!NILP (list)) |
2e344af3 | 2237 | { |
16fed1fc | 2238 | val = Fcons (CHARSET_NAME (CHARSET_FROM_ID (XINT (XCAR (list)))), val); |
8ddf5e57 | 2239 | list = XCDR (list); |
2e344af3 | 2240 | } |
8ddf5e57 | 2241 | return Fnreverse (val); |
2e344af3 KH |
2242 | } |
2243 | ||
8ddf5e57 DL |
2244 | DEFUN ("set-charset-priority", Fset_charset_priority, Sset_charset_priority, |
2245 | 1, MANY, 0, | |
2246 | doc: /* Assign higher priority to the charsets given as arguments. | |
2247 | usage: (set-charset-priority &rest charsets) */) | |
2248 | (nargs, args) | |
2249 | int nargs; | |
4ed46869 KH |
2250 | Lisp_Object *args; |
2251 | { | |
af7c60ca | 2252 | Lisp_Object new_head, old_list, arglist[2]; |
321c819c | 2253 | Lisp_Object list_2022, list_emacs_mule; |
16fed1fc | 2254 | int i, id; |
4ed46869 | 2255 | |
8ddf5e57 | 2256 | old_list = Fcopy_sequence (Vcharset_ordered_list); |
af7c60ca | 2257 | new_head = Qnil; |
8ddf5e57 | 2258 | for (i = 0; i < nargs; i++) |
4ed46869 | 2259 | { |
8ddf5e57 | 2260 | CHECK_CHARSET_GET_ID (args[i], id); |
af7c60ca KH |
2261 | if (! NILP (Fmemq (make_number (id), old_list))) |
2262 | { | |
2263 | old_list = Fdelq (make_number (id), old_list); | |
2264 | new_head = Fcons (make_number (id), new_head); | |
2265 | } | |
5729c92f | 2266 | } |
8ddf5e57 | 2267 | arglist[0] = Fnreverse (new_head); |
6a9c90ec | 2268 | arglist[1] = Vcharset_non_preferred_head = old_list; |
8ddf5e57 | 2269 | Vcharset_ordered_list = Fnconc (2, arglist); |
dbbb237d | 2270 | charset_ordered_list_tick++; |
5729c92f | 2271 | |
6809ca75 | 2272 | charset_unibyte = -1; |
321c819c | 2273 | for (old_list = Vcharset_ordered_list, list_2022 = list_emacs_mule = Qnil; |
d017b41e | 2274 | CONSP (old_list); old_list = XCDR (old_list)) |
5729c92f | 2275 | { |
e77415b0 | 2276 | if (! NILP (Fmemq (XCAR (old_list), Viso_2022_charset_list))) |
321c819c KH |
2277 | list_2022 = Fcons (XCAR (old_list), list_2022); |
2278 | if (! NILP (Fmemq (XCAR (old_list), Vemacs_mule_charset_list))) | |
2279 | list_emacs_mule = Fcons (XCAR (old_list), list_emacs_mule); | |
6809ca75 KH |
2280 | if (charset_unibyte < 0) |
2281 | { | |
2282 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (old_list))); | |
2283 | ||
2284 | if (CHARSET_DIMENSION (charset) == 1 | |
2285 | && CHARSET_ASCII_COMPATIBLE_P (charset) | |
2286 | && CHARSET_MAX_CHAR (charset) >= 0x80) | |
2287 | charset_unibyte = CHARSET_ID (charset); | |
2288 | } | |
4ed46869 | 2289 | } |
321c819c KH |
2290 | Viso_2022_charset_list = Fnreverse (list_2022); |
2291 | Vemacs_mule_charset_list = Fnreverse (list_emacs_mule); | |
6809ca75 KH |
2292 | if (charset_unibyte < 0) |
2293 | charset_unibyte = charset_iso_8859_1; | |
4ed46869 | 2294 | |
8ddf5e57 | 2295 | return Qnil; |
4ed46869 KH |
2296 | } |
2297 | ||
d5b33309 KH |
2298 | DEFUN ("charset-id-internal", Fcharset_id_internal, Scharset_id_internal, |
2299 | 0, 1, 0, | |
2300 | doc: /* Internal use only. | |
2301 | Return charset identification number of CHARSET. */) | |
2302 | (charset) | |
2303 | Lisp_Object charset; | |
4ed46869 | 2304 | { |
d5b33309 | 2305 | int id; |
4ed46869 | 2306 | |
d5b33309 KH |
2307 | CHECK_CHARSET_GET_ID (charset, id); |
2308 | return make_number (id); | |
4ed46869 KH |
2309 | } |
2310 | ||
4ed46869 | 2311 | \f |
3263d5a2 KH |
2312 | void |
2313 | init_charset () | |
4ed46869 | 2314 | { |
c8f94403 GM |
2315 | Lisp_Object tempdir; |
2316 | tempdir = Fexpand_file_name (build_string ("charsets"), Vdata_directory); | |
6809ca75 | 2317 | if (access ((char *) SDATA (tempdir), 0) < 0) |
c8f94403 GM |
2318 | { |
2319 | dir_warning ("Error: charsets directory (%s) does not exist.\n\ | |
2320 | Emacs will not function correctly without the character map files.\n\ | |
2321 | Please check your installation!\n", | |
2322 | tempdir); | |
2323 | /* TODO should this be a fatal error? (Bug#909) */ | |
2324 | } | |
2325 | ||
2326 | Vcharset_map_path = Fcons (tempdir, Qnil); | |
4ed46869 KH |
2327 | } |
2328 | ||
4ed46869 | 2329 | |
dfcf069d | 2330 | void |
4ed46869 KH |
2331 | init_charset_once () |
2332 | { | |
2333 | int i, j, k; | |
2334 | ||
3263d5a2 KH |
2335 | for (i = 0; i < ISO_MAX_DIMENSION; i++) |
2336 | for (j = 0; j < ISO_MAX_CHARS; j++) | |
2337 | for (k = 0; k < ISO_MAX_FINAL; k++) | |
2338 | iso_charset_table[i][j][k] = -1; | |
4ed46869 | 2339 | |
60383934 | 2340 | for (i = 0; i < 256; i++) |
3263d5a2 | 2341 | emacs_mule_charset[i] = NULL; |
4ed46869 | 2342 | |
7c7dceee KH |
2343 | charset_jisx0201_roman = -1; |
2344 | charset_jisx0208_1978 = -1; | |
2345 | charset_jisx0208 = -1; | |
d32320c4 | 2346 | charset_ksc5601 = -1; |
4ed46869 KH |
2347 | } |
2348 | ||
2349 | #ifdef emacs | |
2350 | ||
dfcf069d | 2351 | void |
4ed46869 KH |
2352 | syms_of_charset () |
2353 | { | |
3263d5a2 KH |
2354 | DEFSYM (Qcharsetp, "charsetp"); |
2355 | ||
2356 | DEFSYM (Qascii, "ascii"); | |
2357 | DEFSYM (Qunicode, "unicode"); | |
6c652beb | 2358 | DEFSYM (Qemacs, "emacs"); |
2fe1edd1 | 2359 | DEFSYM (Qeight_bit, "eight-bit"); |
3263d5a2 KH |
2360 | DEFSYM (Qiso_8859_1, "iso-8859-1"); |
2361 | ||
2362 | DEFSYM (Qgl, "gl"); | |
2363 | DEFSYM (Qgr, "gr"); | |
2364 | ||
3263d5a2 KH |
2365 | staticpro (&Vcharset_ordered_list); |
2366 | Vcharset_ordered_list = Qnil; | |
2367 | ||
2368 | staticpro (&Viso_2022_charset_list); | |
2369 | Viso_2022_charset_list = Qnil; | |
2370 | ||
2371 | staticpro (&Vemacs_mule_charset_list); | |
2372 | Vemacs_mule_charset_list = Qnil; | |
2373 | ||
3943ed76 KH |
2374 | /* Don't staticpro them here. It's done in syms_of_fns. */ |
2375 | QCtest = intern (":test"); | |
2376 | Qeq = intern ("eq"); | |
2377 | ||
3263d5a2 | 2378 | staticpro (&Vcharset_hash_table); |
8f924df7 KH |
2379 | { |
2380 | Lisp_Object args[2]; | |
2381 | args[0] = QCtest; | |
2382 | args[1] = Qeq; | |
2383 | Vcharset_hash_table = Fmake_hash_table (2, args); | |
2384 | } | |
3263d5a2 KH |
2385 | |
2386 | charset_table_size = 128; | |
2387 | charset_table = ((struct charset *) | |
2388 | xmalloc (sizeof (struct charset) * charset_table_size)); | |
2389 | charset_table_used = 0; | |
2390 | ||
3263d5a2 KH |
2391 | defsubr (&Scharsetp); |
2392 | defsubr (&Smap_charset_chars); | |
2393 | defsubr (&Sdefine_charset_internal); | |
2394 | defsubr (&Sdefine_charset_alias); | |
3263d5a2 KH |
2395 | defsubr (&Scharset_plist); |
2396 | defsubr (&Sset_charset_plist); | |
2397 | defsubr (&Sunify_charset); | |
3fac5a51 | 2398 | defsubr (&Sget_unused_iso_final_char); |
4ed46869 KH |
2399 | defsubr (&Sdeclare_equiv_charset); |
2400 | defsubr (&Sfind_charset_region); | |
2401 | defsubr (&Sfind_charset_string); | |
3263d5a2 KH |
2402 | defsubr (&Sdecode_char); |
2403 | defsubr (&Sencode_char); | |
4ed46869 | 2404 | defsubr (&Ssplit_char); |
3263d5a2 | 2405 | defsubr (&Smake_char); |
4ed46869 | 2406 | defsubr (&Schar_charset); |
90d7b74e | 2407 | defsubr (&Scharset_after); |
4ed46869 | 2408 | defsubr (&Siso_charset); |
3263d5a2 | 2409 | defsubr (&Sclear_charset_maps); |
8ddf5e57 DL |
2410 | defsubr (&Scharset_priority_list); |
2411 | defsubr (&Sset_charset_priority); | |
d5b33309 | 2412 | defsubr (&Scharset_id_internal); |
3263d5a2 | 2413 | |
4beef065 | 2414 | DEFVAR_LISP ("charset-map-path", &Vcharset_map_path, |
6f3122a7 | 2415 | doc: /* *List of directories to search for charset map files. */); |
4beef065 | 2416 | Vcharset_map_path = Qnil; |
4ed46869 | 2417 | |
ecca2aad KH |
2418 | DEFVAR_BOOL ("inhibit-load-charset-map", &inhibit_load_charset_map, |
2419 | doc: /* Inhibit loading of charset maps. Used when dumping Emacs. */); | |
2420 | inhibit_load_charset_map = 0; | |
2421 | ||
4ed46869 | 2422 | DEFVAR_LISP ("charset-list", &Vcharset_list, |
528623a0 | 2423 | doc: /* List of all charsets ever defined. */); |
3263d5a2 KH |
2424 | Vcharset_list = Qnil; |
2425 | ||
6a9c90ec KH |
2426 | DEFVAR_LISP ("current-iso639-language", &Vcurrent_iso639_language, |
2427 | doc: /* ISO639 language mnemonic symbol for the current language environment. | |
2428 | If the current language environment is for multiple languages (e.g. "Latin-1"), | |
2429 | the value may be a list of mnemonics. */); | |
2430 | Vcurrent_iso639_language = Qnil; | |
2431 | ||
2fe1edd1 KH |
2432 | charset_ascii |
2433 | = define_charset_internal (Qascii, 1, "\x00\x7F\x00\x00\x00\x00", | |
2434 | 0, 127, 'B', -1, 0, 1, 0, 0); | |
14e3d523 KH |
2435 | charset_iso_8859_1 |
2436 | = define_charset_internal (Qiso_8859_1, 1, "\x00\xFF\x00\x00\x00\x00", | |
2437 | 0, 255, -1, -1, -1, 1, 0, 0); | |
2fe1edd1 | 2438 | charset_unicode |
73fbf2d9 | 2439 | = define_charset_internal (Qunicode, 3, "\x00\xFF\x00\xFF\x00\x10", |
2fe1edd1 | 2440 | 0, MAX_UNICODE_CHAR, -1, 0, -1, 1, 0, 0); |
6c652beb KH |
2441 | charset_emacs |
2442 | = define_charset_internal (Qemacs, 3, "\x00\xFF\x00\xFF\x00\x3F", | |
2443 | 0, MAX_5_BYTE_CHAR, -1, 0, -1, 1, 1, 0); | |
2fe1edd1 KH |
2444 | charset_eight_bit |
2445 | = define_charset_internal (Qeight_bit, 1, "\x80\xFF\x00\x00\x00\x00", | |
880820fe | 2446 | 128, 255, -1, 0, -1, 0, 1, |
2fe1edd1 | 2447 | MAX_5_BYTE_CHAR + 1); |
6809ca75 | 2448 | charset_unibyte = charset_iso_8859_1; |
4ed46869 KH |
2449 | } |
2450 | ||
2451 | #endif /* emacs */ | |
cefd8c4f KH |
2452 | |
2453 | /* arch-tag: 66a89b8d-4c28-47d3-9ca1-56f78440d69f | |
2454 | (do not change this comment) */ |