Commit | Line | Data |
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3263d5a2 | 1 | /* Basic character set support. |
c8f94403 GM |
2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
3 | 2008 Free Software Foundation, Inc. | |
7976eda0 | 4 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
8cabe764 | 5 | 2005, 2006, 2007, 2008 |
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> |
4ed46869 | 34 | #include "lisp.h" |
3263d5a2 | 35 | #include "character.h" |
4ed46869 KH |
36 | #include "charset.h" |
37 | #include "coding.h" | |
fc6b09bf | 38 | #include "disptab.h" |
3263d5a2 | 39 | #include "buffer.h" |
4ed46869 | 40 | |
04c2f2c5 | 41 | /*** GENERAL NOTES on CODED CHARACTER SETS (CHARSETS) *** |
4ed46869 | 42 | |
3263d5a2 | 43 | A coded character set ("charset" hereafter) is a meaningful |
04c2f2c5 | 44 | collection (i.e. language, culture, functionality, etc.) of |
3263d5a2 | 45 | characters. Emacs handles multiple charsets at once. In Emacs Lisp |
04c2f2c5 DL |
46 | code, a charset is represented by a symbol. In C code, a charset is |
47 | represented by its ID number or by a pointer to a struct charset. | |
4ed46869 | 48 | |
3263d5a2 KH |
49 | The actual information about each charset is stored in two places. |
50 | Lispy information is stored in the hash table Vcharset_hash_table as | |
51 | a vector (charset attributes). The other information is stored in | |
04c2f2c5 | 52 | charset_table as a struct charset. |
4ed46869 | 53 | |
3263d5a2 | 54 | */ |
4ed46869 | 55 | |
3263d5a2 KH |
56 | /* List of all charsets. This variable is used only from Emacs |
57 | Lisp. */ | |
4ed46869 | 58 | Lisp_Object Vcharset_list; |
4ed46869 | 59 | |
3263d5a2 KH |
60 | /* Hash table that contains attributes of each charset. Keys are |
61 | charset symbols, and values are vectors of charset attributes. */ | |
62 | Lisp_Object Vcharset_hash_table; | |
4ed46869 | 63 | |
3263d5a2 KH |
64 | /* Table of struct charset. */ |
65 | struct charset *charset_table; | |
4ed46869 | 66 | |
3263d5a2 | 67 | static int charset_table_size; |
5af5dd92 | 68 | static int charset_table_used; |
4ed46869 | 69 | |
3263d5a2 | 70 | Lisp_Object Qcharsetp; |
4ed46869 | 71 | |
3263d5a2 KH |
72 | /* Special charset symbols. */ |
73 | Lisp_Object Qascii; | |
2fe1edd1 | 74 | Lisp_Object Qeight_bit; |
3263d5a2 KH |
75 | Lisp_Object Qiso_8859_1; |
76 | Lisp_Object Qunicode; | |
6c652beb | 77 | Lisp_Object Qemacs; |
4ed46869 | 78 | |
3263d5a2 KH |
79 | /* The corresponding charsets. */ |
80 | int charset_ascii; | |
2fe1edd1 | 81 | int charset_eight_bit; |
3263d5a2 KH |
82 | int charset_iso_8859_1; |
83 | int charset_unicode; | |
6c652beb | 84 | int charset_emacs; |
b0e3cf2b | 85 | |
7c7dceee KH |
86 | /* The other special charsets. */ |
87 | int charset_jisx0201_roman; | |
88 | int charset_jisx0208_1978; | |
89 | int charset_jisx0208; | |
c1a08b4c | 90 | |
3263d5a2 KH |
91 | /* Value of charset attribute `charset-iso-plane'. */ |
92 | Lisp_Object Qgl, Qgr; | |
c1a08b4c | 93 | |
d1a04588 KH |
94 | /* Charset of unibyte characters. */ |
95 | int charset_unibyte; | |
4ed46869 | 96 | |
3263d5a2 KH |
97 | /* List of charsets ordered by the priority. */ |
98 | Lisp_Object Vcharset_ordered_list; | |
4ed46869 | 99 | |
6a9c90ec KH |
100 | /* Sub-list of Vcharset_ordered_list that contains all non-preferred |
101 | charsets. */ | |
102 | Lisp_Object Vcharset_non_preferred_head; | |
103 | ||
dbbb237d | 104 | /* Incremented everytime we change Vcharset_ordered_list. This is |
64165ae2 | 105 | unsigned short so that it fits in Lisp_Int and never matches |
dbbb237d KH |
106 | -1. */ |
107 | unsigned short charset_ordered_list_tick; | |
4ed46869 | 108 | |
3263d5a2 KH |
109 | /* List of iso-2022 charsets. */ |
110 | Lisp_Object Viso_2022_charset_list; | |
35e623fb | 111 | |
3263d5a2 KH |
112 | /* List of emacs-mule charsets. */ |
113 | Lisp_Object Vemacs_mule_charset_list; | |
114 | ||
115 | struct charset *emacs_mule_charset[256]; | |
4ed46869 KH |
116 | |
117 | /* Mapping table from ISO2022's charset (specified by DIMENSION, | |
118 | CHARS, and FINAL-CHAR) to Emacs' charset. */ | |
3263d5a2 KH |
119 | int iso_charset_table[ISO_MAX_DIMENSION][ISO_MAX_CHARS][ISO_MAX_FINAL]; |
120 | ||
4beef065 | 121 | Lisp_Object Vcharset_map_path; |
3263d5a2 | 122 | |
ecca2aad KH |
123 | /* If nonzero, don't load charset maps. */ |
124 | int inhibit_load_charset_map; | |
3263d5a2 | 125 | |
6a9c90ec KH |
126 | Lisp_Object Vcurrent_iso639_language; |
127 | ||
64165ae2 DL |
128 | /* Defined in chartab.c */ |
129 | extern void | |
130 | map_char_table_for_charset P_ ((void (*c_function) (Lisp_Object, Lisp_Object), | |
131 | Lisp_Object function, Lisp_Object table, | |
132 | Lisp_Object arg, struct charset *charset, | |
133 | unsigned from, unsigned to)); | |
134 | ||
69f8de5b KH |
135 | #define CODE_POINT_TO_INDEX(charset, code) \ |
136 | ((charset)->code_linear_p \ | |
137 | ? (code) - (charset)->min_code \ | |
138 | : (((charset)->code_space_mask[(code) >> 24] & 0x8) \ | |
139 | && ((charset)->code_space_mask[((code) >> 16) & 0xFF] & 0x4) \ | |
140 | && ((charset)->code_space_mask[((code) >> 8) & 0xFF] & 0x2) \ | |
141 | && ((charset)->code_space_mask[(code) & 0xFF] & 0x1)) \ | |
142 | ? (((((code) >> 24) - (charset)->code_space[12]) \ | |
143 | * (charset)->code_space[11]) \ | |
144 | + (((((code) >> 16) & 0xFF) - (charset)->code_space[8]) \ | |
145 | * (charset)->code_space[7]) \ | |
146 | + (((((code) >> 8) & 0xFF) - (charset)->code_space[4]) \ | |
147 | * (charset)->code_space[3]) \ | |
820ee249 KH |
148 | + (((code) & 0xFF) - (charset)->code_space[0]) \ |
149 | - ((charset)->char_index_offset)) \ | |
3263d5a2 KH |
150 | : -1) |
151 | ||
152 | ||
153 | /* Convert the character index IDX to code-point CODE for CHARSET. | |
154 | It is assumed that IDX is in a valid range. */ | |
155 | ||
820ee249 KH |
156 | #define INDEX_TO_CODE_POINT(charset, idx) \ |
157 | ((charset)->code_linear_p \ | |
158 | ? (idx) + (charset)->min_code \ | |
159 | : (idx += (charset)->char_index_offset, \ | |
160 | (((charset)->code_space[0] + (idx) % (charset)->code_space[2]) \ | |
161 | | (((charset)->code_space[4] \ | |
162 | + ((idx) / (charset)->code_space[3] % (charset)->code_space[6])) \ | |
163 | << 8) \ | |
164 | | (((charset)->code_space[8] \ | |
165 | + ((idx) / (charset)->code_space[7] % (charset)->code_space[10])) \ | |
166 | << 16) \ | |
167 | | (((charset)->code_space[12] + ((idx) / (charset)->code_space[11])) \ | |
168 | << 24)))) | |
4cf9710d | 169 | |
ecca2aad KH |
170 | /* Structure to hold mapping tables for a charset. Used by temacs |
171 | invoked for dumping. */ | |
8a73a704 | 172 | |
ecca2aad KH |
173 | static struct |
174 | { | |
175 | /* The current charset for which the following tables are setup. */ | |
176 | struct charset *current; | |
177 | ||
178 | /* 1 iff the following table is used for encoder. */ | |
179 | short for_encoder; | |
180 | ||
181 | /* When the following table is used for encoding, mininum and | |
182 | maxinum character of the current charset. */ | |
183 | int min_char, max_char; | |
184 | ||
185 | /* A Unicode character correspoinding to the code indice 0 (i.e. the | |
186 | minimum code-point) of the current charset, or -1 if the code | |
187 | indice 0 is not a Unicode character. This is checked when | |
188 | table.encoder[CHAR] is zero. */ | |
189 | int zero_index_char; | |
190 | ||
191 | union { | |
192 | /* Table mapping code-indices (not code-points) of the current | |
193 | charset to Unicode characters. If decoder[CHAR] is -1, CHAR | |
194 | doesn't belong to the current charset. */ | |
195 | int decoder[0x10000]; | |
196 | /* Table mapping Unicode characters to code-indices of the current | |
197 | charset. The first 0x10000 elements are for BMP (0..0xFFFF), | |
198 | and the last 0x10000 are for SMP (0x10000..0x1FFFF) or SIP | |
199 | (0x20000..0x2FFFF). Note that there is no charset map that | |
200 | uses both SMP and SIP. */ | |
201 | unsigned short encoder[0x20000]; | |
202 | } table; | |
203 | } *temp_charset_work; | |
204 | ||
205 | #define SET_TEMP_CHARSET_WORK_ENCODER(C, CODE) \ | |
206 | do { \ | |
207 | if ((CODE) == 0) \ | |
208 | temp_charset_work->zero_index_char = (C); \ | |
209 | else if ((C) < 0x20000) \ | |
210 | temp_charset_work->table.encoder[(C)] = (CODE); \ | |
211 | else \ | |
212 | temp_charset_work->table.encoder[(C) - 0x10000] = (CODE); \ | |
213 | } while (0) | |
214 | ||
215 | #define GET_TEMP_CHARSET_WORK_ENCODER(C) \ | |
216 | ((C) == temp_charset_work->zero_index_char ? 0 \ | |
217 | : (C) < 0x20000 ? (temp_charset_work->table.encoder[(C)] \ | |
218 | ? (int) temp_charset_work->table.encoder[(C)] : -1) \ | |
219 | : temp_charset_work->table.encoder[(C) - 0x10000] \ | |
220 | ? temp_charset_work->table.encoder[(C) - 0x10000] : -1) | |
221 | ||
222 | #define SET_TEMP_CHARSET_WORK_DECODER(C, CODE) \ | |
223 | (temp_charset_work->table.decoder[(CODE)] = (C)) | |
224 | ||
225 | #define GET_TEMP_CHARSET_WORK_DECODER(CODE) \ | |
226 | (temp_charset_work->table.decoder[(CODE)]) | |
046b1f03 | 227 | \f |
93bcb785 | 228 | |
e9ce014c KH |
229 | /* Set to 1 to warn that a charset map is loaded and thus a buffer |
230 | text and a string data may be relocated. */ | |
3263d5a2 | 231 | int charset_map_loaded; |
4ed46869 | 232 | |
e9ce014c | 233 | struct charset_map_entries |
4ed46869 | 234 | { |
e9ce014c KH |
235 | struct { |
236 | unsigned from, to; | |
237 | int c; | |
238 | } entry[0x10000]; | |
239 | struct charset_map_entries *next; | |
240 | }; | |
241 | ||
ecca2aad KH |
242 | /* Load the mapping information of CHARSET from ENTRIES for |
243 | initializing (CONTROL_FLAG == 0), decoding (CONTROL_FLAG == 1), and | |
244 | encoding (CONTROL_FLAG == 2). | |
245 | ||
246 | If CONTROL_FLAG is 0, setup CHARSET->min_char, CHARSET->max_char, | |
247 | and CHARSET->fast_map. | |
248 | ||
249 | If CONTROL_FLAG is 1, setup the following tables according to | |
250 | CHARSET->method and inhibit_load_charset_map. | |
4cf9710d | 251 | |
ecca2aad KH |
252 | CHARSET->method | inhibit_lcm == 0 | inhibit_lcm == 1 |
253 | ----------------------+--------------------+--------------------------- | |
254 | CHARSET_METHOD_MAP | CHARSET->decoder | temp_charset_work->decoder | |
255 | ----------------------+--------------------+--------------------------- | |
256 | CHARSET_METHOD_OFFSET | Vchar_unify_table | temp_charset_work->decoder | |
8a73a704 | 257 | |
ecca2aad | 258 | If CONTROL_FLAG is 2, setup the following tables. |
93bcb785 | 259 | |
ecca2aad KH |
260 | CHARSET->method | inhibit_lcm == 0 | inhibit_lcm == 1 |
261 | ----------------------+--------------------+--------------------------- | |
262 | CHARSET_METHOD_MAP | CHARSET->encoder | temp_charset_work->encoder | |
263 | ----------------------+--------------------+-------------------------- | |
264 | CHARSET_METHOD_OFFSET | CHARSET->deunifier | temp_charset_work->encoder | |
265 | */ | |
4ed46869 | 266 | |
3263d5a2 | 267 | static void |
e9ce014c | 268 | load_charset_map (charset, entries, n_entries, control_flag) |
3263d5a2 | 269 | struct charset *charset; |
e9ce014c KH |
270 | struct charset_map_entries *entries; |
271 | int n_entries; | |
3263d5a2 | 272 | int control_flag; |
4ed46869 | 273 | { |
3263d5a2 | 274 | Lisp_Object vec, table; |
3263d5a2 KH |
275 | unsigned max_code = CHARSET_MAX_CODE (charset); |
276 | int ascii_compatible_p = charset->ascii_compatible_p; | |
277 | int min_char, max_char, nonascii_min_char; | |
3263d5a2 | 278 | int i; |
3263d5a2 | 279 | unsigned char *fast_map = charset->fast_map; |
99529c2c | 280 | |
e9ce014c KH |
281 | if (n_entries <= 0) |
282 | return; | |
283 | ||
ecca2aad | 284 | if (control_flag) |
8ac5a9cc | 285 | { |
ecca2aad KH |
286 | if (! inhibit_load_charset_map) |
287 | { | |
288 | if (control_flag == 1) | |
289 | { | |
290 | if (charset->method == CHARSET_METHOD_MAP) | |
291 | { | |
292 | int n = CODE_POINT_TO_INDEX (charset, max_code) + 1; | |
6662e69b | 293 | |
ecca2aad KH |
294 | vec = CHARSET_DECODER (charset) |
295 | = Fmake_vector (make_number (n), make_number (-1)); | |
296 | } | |
297 | else | |
298 | { | |
299 | char_table_set_range (Vchar_unify_table, | |
300 | charset->min_char, charset->max_char, | |
301 | Qnil); | |
302 | } | |
303 | } | |
304 | else | |
305 | { | |
306 | table = Fmake_char_table (Qnil, Qnil); | |
307 | if (charset->method == CHARSET_METHOD_MAP) | |
308 | CHARSET_ENCODER (charset) = table; | |
309 | else | |
310 | CHARSET_DEUNIFIER (charset) = table; | |
311 | } | |
312 | } | |
313 | else | |
314 | { | |
315 | if (! temp_charset_work) | |
316 | temp_charset_work = malloc (sizeof (*temp_charset_work)); | |
317 | if (control_flag == 1) | |
318 | { | |
319 | memset (temp_charset_work->table.decoder, -1, | |
320 | sizeof (int) * 0x10000); | |
321 | temp_charset_work->for_encoder = 0; | |
322 | } | |
323 | else | |
324 | { | |
325 | memset (temp_charset_work->table.encoder, 0, | |
326 | sizeof (unsigned short) * 0x20000); | |
327 | temp_charset_work->zero_index_char = -1; | |
328 | } | |
329 | temp_charset_work->current = charset; | |
330 | temp_charset_work->for_encoder = (control_flag == 2); | |
331 | control_flag += 2; | |
332 | } | |
3263d5a2 | 333 | charset_map_loaded = 1; |
2e344af3 | 334 | } |
6662e69b | 335 | |
e9ce014c | 336 | min_char = max_char = entries->entry[0].c; |
3263d5a2 | 337 | nonascii_min_char = MAX_CHAR; |
e9ce014c | 338 | for (i = 0; i < n_entries; i++) |
2e344af3 | 339 | { |
e9ce014c | 340 | unsigned from, to; |
3b4f4446 KH |
341 | int from_index, to_index; |
342 | int from_c, to_c; | |
e9ce014c | 343 | int idx = i % 0x10000; |
3263d5a2 | 344 | |
e9ce014c KH |
345 | if (i > 0 && idx == 0) |
346 | entries = entries->next; | |
347 | from = entries->entry[idx].from; | |
348 | to = entries->entry[idx].to; | |
3b4f4446 KH |
349 | from_c = entries->entry[idx].c; |
350 | from_index = CODE_POINT_TO_INDEX (charset, from); | |
351 | if (from == to) | |
6662e69b | 352 | { |
3b4f4446 KH |
353 | to_index = from_index; |
354 | to_c = from_c; | |
6662e69b | 355 | } |
3b4f4446 | 356 | else |
6662e69b | 357 | { |
3b4f4446 KH |
358 | to_index = CODE_POINT_TO_INDEX (charset, to); |
359 | to_c = from_c + (to_index - from_index); | |
6662e69b | 360 | } |
3b4f4446 KH |
361 | if (from_index < 0 || to_index < 0) |
362 | continue; | |
3263d5a2 | 363 | |
ecca2aad KH |
364 | if (to_c > max_char) |
365 | max_char = to_c; | |
366 | else if (from_c < min_char) | |
367 | min_char = from_c; | |
6662e69b | 368 | |
ecca2aad KH |
369 | if (control_flag == 1) |
370 | { | |
371 | if (charset->method == CHARSET_METHOD_MAP) | |
372 | for (; from_index <= to_index; from_index++, from_c++) | |
373 | ASET (vec, from_index, make_number (from_c)); | |
374 | else | |
375 | for (; from_index <= to_index; from_index++, from_c++) | |
376 | CHAR_TABLE_SET (Vchar_unify_table, | |
377 | CHARSET_CODE_OFFSET (charset) + from_index, | |
378 | make_number (from_c)); | |
379 | } | |
380 | else if (control_flag == 2) | |
381 | { | |
382 | if (charset->method == CHARSET_METHOD_MAP | |
383 | && CHARSET_COMPACT_CODES_P (charset)) | |
384 | for (; from_index <= to_index; from_index++, from_c++) | |
385 | { | |
386 | unsigned code = INDEX_TO_CODE_POINT (charset, from_index); | |
387 | ||
388 | if (NILP (CHAR_TABLE_REF (table, from_c))) | |
389 | CHAR_TABLE_SET (table, from_c, make_number (code)); | |
390 | } | |
391 | else | |
392 | for (; from_index <= to_index; from_index++, from_c++) | |
393 | { | |
394 | if (NILP (CHAR_TABLE_REF (table, from_c))) | |
395 | CHAR_TABLE_SET (table, from_c, make_number (from_index)); | |
396 | } | |
397 | } | |
398 | else if (control_flag == 3) | |
399 | for (; from_index <= to_index; from_index++, from_c++) | |
400 | SET_TEMP_CHARSET_WORK_DECODER (from_c, from_index); | |
401 | else if (control_flag == 4) | |
402 | for (; from_index <= to_index; from_index++, from_c++) | |
403 | SET_TEMP_CHARSET_WORK_ENCODER (from_c, from_index); | |
404 | else /* control_flag == 0 */ | |
405 | { | |
3b4f4446 KH |
406 | if (ascii_compatible_p) |
407 | { | |
408 | if (! ASCII_BYTE_P (from_c)) | |
409 | { | |
410 | if (from_c < nonascii_min_char) | |
411 | nonascii_min_char = from_c; | |
412 | } | |
413 | else if (! ASCII_BYTE_P (to_c)) | |
414 | { | |
415 | nonascii_min_char = 0x80; | |
416 | } | |
417 | } | |
177c0ea7 | 418 | |
ecca2aad KH |
419 | for (; from_c <= to_c; from_c++) |
420 | CHARSET_FAST_MAP_SET (from_c, fast_map); | |
2e344af3 | 421 | } |
8ac5a9cc | 422 | } |
3263d5a2 | 423 | |
ecca2aad | 424 | if (control_flag == 0) |
4ed46869 | 425 | { |
3263d5a2 KH |
426 | CHARSET_MIN_CHAR (charset) = (ascii_compatible_p |
427 | ? nonascii_min_char : min_char); | |
428 | CHARSET_MAX_CHAR (charset) = max_char; | |
4ed46869 | 429 | } |
ecca2aad KH |
430 | else if (control_flag == 4) |
431 | { | |
432 | temp_charset_work->min_char = min_char; | |
433 | temp_charset_work->max_char = max_char; | |
434 | } | |
4ed46869 KH |
435 | } |
436 | ||
12bcae05 | 437 | |
3263d5a2 KH |
438 | /* Read a hexadecimal number (preceded by "0x") from the file FP while |
439 | paying attention to comment charcter '#'. */ | |
12bcae05 | 440 | |
3263d5a2 KH |
441 | static INLINE unsigned |
442 | read_hex (fp, eof) | |
443 | FILE *fp; | |
444 | int *eof; | |
12bcae05 | 445 | { |
3263d5a2 KH |
446 | int c; |
447 | unsigned n; | |
12bcae05 | 448 | |
3263d5a2 KH |
449 | while ((c = getc (fp)) != EOF) |
450 | { | |
69f8de5b | 451 | if (c == '#') |
3263d5a2 KH |
452 | { |
453 | while ((c = getc (fp)) != EOF && c != '\n'); | |
454 | } | |
455 | else if (c == '0') | |
456 | { | |
457 | if ((c = getc (fp)) == EOF || c == 'x') | |
458 | break; | |
459 | } | |
8f924df7 | 460 | } |
3263d5a2 KH |
461 | if (c == EOF) |
462 | { | |
463 | *eof = 1; | |
464 | return 0; | |
465 | } | |
466 | *eof = 0; | |
467 | n = 0; | |
468 | if (c == 'x') | |
469 | while ((c = getc (fp)) != EOF && isxdigit (c)) | |
470 | n = ((n << 4) | |
471 | | (c <= '9' ? c - '0' : c <= 'F' ? c - 'A' + 10 : c - 'a' + 10)); | |
472 | else | |
473 | while ((c = getc (fp)) != EOF && isdigit (c)) | |
474 | n = (n * 10) + c - '0'; | |
e9ce014c KH |
475 | if (c != EOF) |
476 | ungetc (c, fp); | |
3263d5a2 KH |
477 | return n; |
478 | } | |
12bcae05 | 479 | |
537efd8d | 480 | |
3263d5a2 | 481 | /* Return a mapping vector for CHARSET loaded from MAPFILE. |
e9ce014c KH |
482 | Each line of MAPFILE has this form |
483 | 0xAAAA 0xCCCC | |
484 | where 0xAAAA is a code-point and 0xCCCC is the corresponding | |
485 | character code, or this form | |
486 | 0xAAAA-0xBBBB 0xCCCC | |
487 | where 0xAAAA and 0xBBBB are code-points specifying a range, and | |
488 | 0xCCCC is the first character code of the range. | |
4ed46869 | 489 | |
3263d5a2 KH |
490 | The returned vector has this form: |
491 | [ CODE1 CHAR1 CODE2 CHAR2 .... ] | |
e9ce014c KH |
492 | where CODE1 is a code-point or a cons of code-points specifying a |
493 | range. */ | |
4ed46869 | 494 | |
c449997d | 495 | extern void add_to_log P_ ((char *, Lisp_Object, Lisp_Object)); |
4ed46869 | 496 | |
e9ce014c KH |
497 | static void |
498 | load_charset_map_from_file (charset, mapfile, control_flag) | |
3263d5a2 KH |
499 | struct charset *charset; |
500 | Lisp_Object mapfile; | |
e9ce014c | 501 | int control_flag; |
4ed46869 | 502 | { |
e9ce014c KH |
503 | unsigned min_code = CHARSET_MIN_CODE (charset); |
504 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
3263d5a2 KH |
505 | int fd; |
506 | FILE *fp; | |
3263d5a2 KH |
507 | int eof; |
508 | Lisp_Object suffixes; | |
e9ce014c KH |
509 | struct charset_map_entries *head, *entries; |
510 | int n_entries; | |
4ed46869 | 511 | |
3263d5a2 KH |
512 | suffixes = Fcons (build_string (".map"), |
513 | Fcons (build_string (".TXT"), Qnil)); | |
4ed46869 | 514 | |
4beef065 | 515 | fd = openp (Vcharset_map_path, mapfile, suffixes, NULL, Qnil); |
3263d5a2 KH |
516 | if (fd < 0 |
517 | || ! (fp = fdopen (fd, "r"))) | |
518 | { | |
519 | add_to_log ("Failure in loading charset map: %S", mapfile, Qnil); | |
e9ce014c | 520 | return; |
3263d5a2 | 521 | } |
4ed46869 | 522 | |
e9ce014c KH |
523 | head = entries = ((struct charset_map_entries *) |
524 | alloca (sizeof (struct charset_map_entries))); | |
525 | n_entries = 0; | |
3263d5a2 KH |
526 | eof = 0; |
527 | while (1) | |
528 | { | |
e9ce014c KH |
529 | unsigned from, to; |
530 | int c; | |
531 | int idx; | |
4ed46869 | 532 | |
e9ce014c | 533 | from = read_hex (fp, &eof); |
3263d5a2 KH |
534 | if (eof) |
535 | break; | |
e9ce014c KH |
536 | if (getc (fp) == '-') |
537 | to = read_hex (fp, &eof); | |
538 | else | |
539 | to = from; | |
540 | c = (int) read_hex (fp, &eof); | |
ac4137cc | 541 | |
e9ce014c KH |
542 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
543 | continue; | |
ac4137cc | 544 | |
e9ce014c | 545 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
3263d5a2 | 546 | { |
e9ce014c KH |
547 | entries->next = ((struct charset_map_entries *) |
548 | alloca (sizeof (struct charset_map_entries))); | |
549 | entries = entries->next; | |
3263d5a2 | 550 | } |
e9ce014c KH |
551 | idx = n_entries % 0x10000; |
552 | entries->entry[idx].from = from; | |
553 | entries->entry[idx].to = to; | |
554 | entries->entry[idx].c = c; | |
555 | n_entries++; | |
3263d5a2 KH |
556 | } |
557 | fclose (fp); | |
558 | close (fd); | |
177c0ea7 | 559 | |
e9ce014c | 560 | load_charset_map (charset, head, n_entries, control_flag); |
4ed46869 KH |
561 | } |
562 | ||
e9ce014c KH |
563 | static void |
564 | load_charset_map_from_vector (charset, vec, control_flag) | |
565 | struct charset *charset; | |
566 | Lisp_Object vec; | |
567 | int control_flag; | |
23d2a7f1 | 568 | { |
e9ce014c KH |
569 | unsigned min_code = CHARSET_MIN_CODE (charset); |
570 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
571 | struct charset_map_entries *head, *entries; | |
572 | int n_entries; | |
573 | int len = ASIZE (vec); | |
574 | int i; | |
23d2a7f1 | 575 | |
e9ce014c | 576 | if (len % 2 == 1) |
3263d5a2 | 577 | { |
e9ce014c KH |
578 | add_to_log ("Failure in loading charset map: %V", vec, Qnil); |
579 | return; | |
3263d5a2 | 580 | } |
35e623fb | 581 | |
e9ce014c KH |
582 | head = entries = ((struct charset_map_entries *) |
583 | alloca (sizeof (struct charset_map_entries))); | |
584 | n_entries = 0; | |
585 | for (i = 0; i < len; i += 2) | |
35e623fb | 586 | { |
e9ce014c KH |
587 | Lisp_Object val, val2; |
588 | unsigned from, to; | |
589 | int c; | |
590 | int idx; | |
d2665018 | 591 | |
e9ce014c KH |
592 | val = AREF (vec, i); |
593 | if (CONSP (val)) | |
bbf12bb3 | 594 | { |
e9ce014c KH |
595 | val2 = XCDR (val); |
596 | val = XCAR (val); | |
597 | CHECK_NATNUM (val); | |
598 | CHECK_NATNUM (val2); | |
599 | from = XFASTINT (val); | |
600 | to = XFASTINT (val2); | |
bbf12bb3 | 601 | } |
e9ce014c | 602 | else |
bbf12bb3 | 603 | { |
e9ce014c KH |
604 | CHECK_NATNUM (val); |
605 | from = to = XFASTINT (val); | |
bbf12bb3 | 606 | } |
e9ce014c KH |
607 | val = AREF (vec, i + 1); |
608 | CHECK_NATNUM (val); | |
609 | c = XFASTINT (val); | |
76d7b829 | 610 | |
e9ce014c KH |
611 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
612 | continue; | |
76d7b829 | 613 | |
dcc694d7 | 614 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
e9ce014c KH |
615 | { |
616 | entries->next = ((struct charset_map_entries *) | |
617 | alloca (sizeof (struct charset_map_entries))); | |
618 | entries = entries->next; | |
619 | } | |
620 | idx = n_entries % 0x10000; | |
621 | entries->entry[idx].from = from; | |
622 | entries->entry[idx].to = to; | |
623 | entries->entry[idx].c = c; | |
624 | n_entries++; | |
625 | } | |
76d7b829 | 626 | |
e9ce014c | 627 | load_charset_map (charset, head, n_entries, control_flag); |
ac4137cc KH |
628 | } |
629 | ||
ecca2aad KH |
630 | |
631 | /* Load a mapping table for CHARSET. CONTROL-FLAG tells what kind of | |
632 | map it is (see the comment of load_charset_map for the detail). */ | |
633 | ||
3263d5a2 | 634 | static void |
ecca2aad | 635 | load_charset (charset, control_flag) |
3263d5a2 | 636 | struct charset *charset; |
ecca2aad | 637 | int control_flag; |
76d7b829 | 638 | { |
ecca2aad | 639 | Lisp_Object map; |
76d7b829 | 640 | |
ecca2aad KH |
641 | if (inhibit_load_charset_map |
642 | && temp_charset_work | |
643 | && charset == temp_charset_work->current | |
644 | && (control_flag == 2 == temp_charset_work->for_encoder)) | |
645 | return; | |
646 | ||
647 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) | |
648 | map = CHARSET_MAP (charset); | |
649 | else if (CHARSET_UNIFIED_P (charset)) | |
650 | map = CHARSET_UNIFY_MAP (charset); | |
651 | if (STRINGP (map)) | |
652 | load_charset_map_from_file (charset, map, control_flag); | |
653 | else | |
654 | load_charset_map_from_vector (charset, map, control_flag); | |
4ed46869 | 655 | } |
76d7b829 | 656 | |
3263d5a2 KH |
657 | |
658 | DEFUN ("charsetp", Fcharsetp, Scharsetp, 1, 1, 0, | |
659 | doc: /* Return non-nil if and only if OBJECT is a charset.*/) | |
660 | (object) | |
661 | Lisp_Object object; | |
23d2a7f1 | 662 | { |
3263d5a2 | 663 | return (CHARSETP (object) ? Qt : Qnil); |
76d7b829 KH |
664 | } |
665 | ||
4ed46869 | 666 | |
ecca2aad KH |
667 | void map_charset_for_dump P_ ((void (*c_function) (Lisp_Object, Lisp_Object), |
668 | Lisp_Object function, Lisp_Object arg, | |
669 | unsigned from, unsigned to)); | |
670 | ||
671 | void | |
672 | map_charset_for_dump (c_function, function, arg, from, to) | |
673 | void (*c_function) (Lisp_Object, Lisp_Object); | |
674 | Lisp_Object function, arg; | |
675 | unsigned from, to; | |
676 | { | |
677 | int from_idx = CODE_POINT_TO_INDEX (temp_charset_work->current, from); | |
678 | int to_idx = CODE_POINT_TO_INDEX (temp_charset_work->current, to); | |
679 | Lisp_Object range; | |
680 | int c, stop; | |
681 | struct gcpro gcpro1; | |
682 | ||
683 | range = Fcons (Qnil, Qnil); | |
684 | GCPRO1 (range); | |
685 | ||
686 | c = temp_charset_work->min_char; | |
687 | stop = (temp_charset_work->max_char < 0x20000 | |
688 | ? temp_charset_work->max_char : 0xFFFF); | |
689 | ||
690 | while (1) | |
691 | { | |
692 | int index = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
693 | ||
694 | if (index >= from_idx && index <= to_idx) | |
695 | { | |
696 | if (NILP (XCAR (range))) | |
697 | XSETCAR (range, make_number (c)); | |
698 | } | |
699 | else if (! NILP (XCAR (range))) | |
700 | { | |
701 | XSETCDR (range, make_number (c - 1)); | |
702 | if (c_function) | |
703 | (*c_function) (arg, range); | |
704 | else | |
705 | call2 (function, range, arg); | |
706 | XSETCAR (range, Qnil); | |
707 | } | |
708 | if (c == stop) | |
709 | { | |
710 | if (c == temp_charset_work->max_char) | |
711 | { | |
712 | if (! NILP (XCAR (range))) | |
713 | { | |
714 | XSETCDR (range, make_number (c)); | |
715 | if (c_function) | |
716 | (*c_function) (arg, range); | |
717 | else | |
718 | call2 (function, range, arg); | |
719 | } | |
720 | break; | |
721 | } | |
722 | c = 0x1FFFF; | |
723 | stop = temp_charset_work->max_char; | |
724 | } | |
725 | c++; | |
726 | } | |
727 | } | |
728 | ||
4ed46869 | 729 | void |
374c5cfd KH |
730 | map_charset_chars (c_function, function, arg, |
731 | charset, from, to) | |
732 | void (*c_function) P_ ((Lisp_Object, Lisp_Object)); | |
733 | Lisp_Object function, arg; | |
734 | struct charset *charset; | |
735 | unsigned from, to; | |
4ed46869 | 736 | { |
3263d5a2 | 737 | Lisp_Object range; |
374c5cfd | 738 | int partial; |
3263d5a2 | 739 | |
374c5cfd KH |
740 | partial = (from > CHARSET_MIN_CODE (charset) |
741 | || to < CHARSET_MAX_CODE (charset)); | |
742 | ||
3263d5a2 | 743 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_OFFSET) |
4ed46869 | 744 | { |
374c5cfd KH |
745 | int from_idx = CODE_POINT_TO_INDEX (charset, from); |
746 | int to_idx = CODE_POINT_TO_INDEX (charset, to); | |
747 | int from_c = from_idx + CHARSET_CODE_OFFSET (charset); | |
748 | int to_c = to_idx + CHARSET_CODE_OFFSET (charset); | |
749 | ||
ecca2aad KH |
750 | if (CHARSET_UNIFIED_P (charset)) |
751 | { | |
752 | if (! CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
753 | load_charset (charset, 2); | |
754 | if (CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
755 | map_char_table_for_charset (c_function, function, | |
756 | CHARSET_DEUNIFIER (charset), arg, | |
757 | partial ? charset : NULL, from, to); | |
758 | else | |
759 | map_charset_for_dump (c_function, function, arg, from, to); | |
760 | } | |
761 | ||
374c5cfd | 762 | range = Fcons (make_number (from_c), make_number (to_c)); |
3263d5a2 | 763 | if (NILP (function)) |
5af5dd92 | 764 | (*c_function) (arg, range); |
3263d5a2 KH |
765 | else |
766 | call2 (function, range, arg); | |
c83ef371 | 767 | } |
3263d5a2 KH |
768 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) |
769 | { | |
770 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
ecca2aad KH |
771 | load_charset (charset, 2); |
772 | if (CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
773 | map_char_table_for_charset (c_function, function, | |
774 | CHARSET_ENCODER (charset), arg, | |
775 | partial ? charset : NULL, from, to); | |
776 | else | |
777 | map_charset_for_dump (c_function, function, arg, from, to); | |
3263d5a2 | 778 | } |
374c5cfd | 779 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_SUBSET) |
4ed46869 | 780 | { |
374c5cfd KH |
781 | Lisp_Object subset_info; |
782 | int offset; | |
783 | ||
784 | subset_info = CHARSET_SUBSET (charset); | |
785 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
786 | offset = XINT (AREF (subset_info, 3)); | |
787 | from -= offset; | |
788 | if (from < XFASTINT (AREF (subset_info, 1))) | |
789 | from = XFASTINT (AREF (subset_info, 1)); | |
790 | to -= offset; | |
791 | if (to > XFASTINT (AREF (subset_info, 2))) | |
792 | to = XFASTINT (AREF (subset_info, 2)); | |
793 | map_charset_chars (c_function, function, arg, charset, from, to); | |
4ed46869 | 794 | } |
374c5cfd KH |
795 | else /* i.e. CHARSET_METHOD_SUPERSET */ |
796 | { | |
797 | Lisp_Object parents; | |
4ed46869 | 798 | |
374c5cfd KH |
799 | for (parents = CHARSET_SUPERSET (charset); CONSP (parents); |
800 | parents = XCDR (parents)) | |
bbf12bb3 | 801 | { |
374c5cfd KH |
802 | int offset; |
803 | unsigned this_from, this_to; | |
804 | ||
805 | charset = CHARSET_FROM_ID (XFASTINT (XCAR (XCAR (parents)))); | |
806 | offset = XINT (XCDR (XCAR (parents))); | |
807 | this_from = from - offset; | |
808 | this_to = to - offset; | |
809 | if (this_from < CHARSET_MIN_CODE (charset)) | |
810 | this_from = CHARSET_MIN_CODE (charset); | |
811 | if (this_to > CHARSET_MAX_CODE (charset)) | |
812 | this_to = CHARSET_MAX_CODE (charset); | |
111daccf KH |
813 | map_charset_chars (c_function, function, arg, charset, |
814 | this_from, this_to); | |
bbf12bb3 | 815 | } |
35e623fb | 816 | } |
4ed46869 KH |
817 | } |
818 | ||
374c5cfd | 819 | DEFUN ("map-charset-chars", Fmap_charset_chars, Smap_charset_chars, 2, 5, 0, |
04c2f2c5 | 820 | doc: /* Call FUNCTION for all characters in CHARSET. |
374c5cfd | 821 | FUNCTION is called with an argument RANGE and the optional 3rd |
3263d5a2 | 822 | argument ARG. |
4ed46869 | 823 | |
374c5cfd KH |
824 | RANGE is a cons (FROM . TO), where FROM and TO indicate a range of |
825 | characters contained in CHARSET. | |
4ed46869 | 826 | |
374c5cfd | 827 | The optional 4th and 5th arguments FROM-CODE and TO-CODE specify the |
8f924df7 | 828 | range of code points of target characters. */) |
374c5cfd KH |
829 | (function, charset, arg, from_code, to_code) |
830 | Lisp_Object function, charset, arg, from_code, to_code; | |
4ed46869 | 831 | { |
374c5cfd | 832 | struct charset *cs; |
16fed1fc | 833 | unsigned from, to; |
4ed46869 | 834 | |
374c5cfd KH |
835 | CHECK_CHARSET_GET_CHARSET (charset, cs); |
836 | if (NILP (from_code)) | |
16fed1fc | 837 | from = CHARSET_MIN_CODE (cs); |
970b7474 | 838 | else |
4ed46869 | 839 | { |
970b7474 KH |
840 | CHECK_NATNUM (from_code); |
841 | from = XINT (from_code); | |
842 | if (from < CHARSET_MIN_CODE (cs)) | |
843 | from = CHARSET_MIN_CODE (cs); | |
4ed46869 | 844 | } |
374c5cfd | 845 | if (NILP (to_code)) |
970b7474 | 846 | to = CHARSET_MAX_CODE (cs); |
4ed46869 KH |
847 | else |
848 | { | |
970b7474 KH |
849 | CHECK_NATNUM (to_code); |
850 | to = XINT (to_code); | |
851 | if (to > CHARSET_MAX_CODE (cs)) | |
852 | to = CHARSET_MAX_CODE (cs); | |
4ed46869 | 853 | } |
16fed1fc | 854 | map_charset_chars (NULL, function, arg, cs, from, to); |
3263d5a2 | 855 | return Qnil; |
35e623fb | 856 | } |
4ed46869 | 857 | |
4ed46869 | 858 | |
3263d5a2 KH |
859 | /* Define a charset according to the arguments. The Nth argument is |
860 | the Nth attribute of the charset (the last attribute `charset-id' | |
861 | is not included). See the docstring of `define-charset' for the | |
862 | detail. */ | |
4ed46869 | 863 | |
3263d5a2 KH |
864 | DEFUN ("define-charset-internal", Fdefine_charset_internal, |
865 | Sdefine_charset_internal, charset_arg_max, MANY, 0, | |
04c2f2c5 DL |
866 | doc: /* For internal use only. |
867 | usage: (define-charset-internal ...) */) | |
3263d5a2 KH |
868 | (nargs, args) |
869 | int nargs; | |
870 | Lisp_Object *args; | |
4ed46869 | 871 | { |
3263d5a2 KH |
872 | /* Charset attr vector. */ |
873 | Lisp_Object attrs; | |
874 | Lisp_Object val; | |
875 | unsigned hash_code; | |
876 | struct Lisp_Hash_Table *hash_table = XHASH_TABLE (Vcharset_hash_table); | |
69f8de5b | 877 | int i, j; |
3263d5a2 KH |
878 | struct charset charset; |
879 | int id; | |
880 | int dimension; | |
881 | int new_definition_p; | |
882 | int nchars; | |
883 | ||
884 | if (nargs != charset_arg_max) | |
885 | return Fsignal (Qwrong_number_of_arguments, | |
886 | Fcons (intern ("define-charset-internal"), | |
887 | make_number (nargs))); | |
888 | ||
889 | attrs = Fmake_vector (make_number (charset_attr_max), Qnil); | |
890 | ||
891 | CHECK_SYMBOL (args[charset_arg_name]); | |
892 | ASET (attrs, charset_name, args[charset_arg_name]); | |
893 | ||
894 | val = args[charset_arg_code_space]; | |
895 | for (i = 0, dimension = 0, nchars = 1; i < 4; i++) | |
76d7b829 | 896 | { |
3263d5a2 KH |
897 | int min_byte, max_byte; |
898 | ||
899 | min_byte = XINT (Faref (val, make_number (i * 2))); | |
900 | max_byte = XINT (Faref (val, make_number (i * 2 + 1))); | |
901 | if (min_byte < 0 || min_byte > max_byte || max_byte >= 256) | |
902 | error ("Invalid :code-space value"); | |
903 | charset.code_space[i * 4] = min_byte; | |
904 | charset.code_space[i * 4 + 1] = max_byte; | |
905 | charset.code_space[i * 4 + 2] = max_byte - min_byte + 1; | |
906 | nchars *= charset.code_space[i * 4 + 2]; | |
907 | charset.code_space[i * 4 + 3] = nchars; | |
908 | if (max_byte > 0) | |
909 | dimension = i + 1; | |
910 | } | |
4ed46869 | 911 | |
3263d5a2 KH |
912 | val = args[charset_arg_dimension]; |
913 | if (NILP (val)) | |
914 | charset.dimension = dimension; | |
915 | else | |
4ed46869 | 916 | { |
3263d5a2 KH |
917 | CHECK_NATNUM (val); |
918 | charset.dimension = XINT (val); | |
919 | if (charset.dimension < 1 || charset.dimension > 4) | |
920 | args_out_of_range_3 (val, make_number (1), make_number (4)); | |
4ed46869 KH |
921 | } |
922 | ||
3263d5a2 KH |
923 | charset.code_linear_p |
924 | = (charset.dimension == 1 | |
925 | || (charset.code_space[2] == 256 | |
926 | && (charset.dimension == 2 | |
927 | || (charset.code_space[6] == 256 | |
928 | && (charset.dimension == 3 | |
929 | || charset.code_space[10] == 256))))); | |
930 | ||
69f8de5b | 931 | if (! charset.code_linear_p) |
4ed46869 | 932 | { |
69f8de5b | 933 | charset.code_space_mask = (unsigned char *) xmalloc (256); |
33df3183 | 934 | bzero (charset.code_space_mask, 256); |
69f8de5b KH |
935 | for (i = 0; i < 4; i++) |
936 | for (j = charset.code_space[i * 4]; j <= charset.code_space[i * 4 + 1]; | |
937 | j++) | |
938 | charset.code_space_mask[j] |= (1 << i); | |
4ed46869 KH |
939 | } |
940 | ||
3263d5a2 | 941 | charset.iso_chars_96 = charset.code_space[2] == 96; |
4ed46869 | 942 | |
3263d5a2 KH |
943 | charset.min_code = (charset.code_space[0] |
944 | | (charset.code_space[4] << 8) | |
945 | | (charset.code_space[8] << 16) | |
946 | | (charset.code_space[12] << 24)); | |
947 | charset.max_code = (charset.code_space[1] | |
948 | | (charset.code_space[5] << 8) | |
949 | | (charset.code_space[9] << 16) | |
950 | | (charset.code_space[13] << 24)); | |
820ee249 | 951 | charset.char_index_offset = 0; |
8a73a704 | 952 | |
820ee249 KH |
953 | val = args[charset_arg_min_code]; |
954 | if (! NILP (val)) | |
955 | { | |
956 | unsigned code; | |
fdb82f93 | 957 | |
820ee249 KH |
958 | if (INTEGERP (val)) |
959 | code = XINT (val); | |
960 | else | |
961 | { | |
962 | CHECK_CONS (val); | |
8f924df7 KH |
963 | CHECK_NUMBER_CAR (val); |
964 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
965 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
966 | } | |
967 | if (code < charset.min_code | |
968 | || code > charset.max_code) | |
969 | args_out_of_range_3 (make_number (charset.min_code), | |
970 | make_number (charset.max_code), val); | |
971 | charset.char_index_offset = CODE_POINT_TO_INDEX (&charset, code); | |
972 | charset.min_code = code; | |
973 | } | |
3fac5a51 | 974 | |
820ee249 KH |
975 | val = args[charset_arg_max_code]; |
976 | if (! NILP (val)) | |
3fac5a51 | 977 | { |
820ee249 KH |
978 | unsigned code; |
979 | ||
980 | if (INTEGERP (val)) | |
981 | code = XINT (val); | |
982 | else | |
983 | { | |
984 | CHECK_CONS (val); | |
8f924df7 KH |
985 | CHECK_NUMBER_CAR (val); |
986 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
987 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
988 | } | |
989 | if (code < charset.min_code | |
990 | || code > charset.max_code) | |
991 | args_out_of_range_3 (make_number (charset.min_code), | |
992 | make_number (charset.max_code), val); | |
993 | charset.max_code = code; | |
3fac5a51 | 994 | } |
3fac5a51 | 995 | |
ecca2aad | 996 | charset.compact_codes_p = charset.max_code < 0x10000; |
4ed46869 | 997 | |
3263d5a2 KH |
998 | val = args[charset_arg_invalid_code]; |
999 | if (NILP (val)) | |
1000 | { | |
1001 | if (charset.min_code > 0) | |
1002 | charset.invalid_code = 0; | |
bbf12bb3 KH |
1003 | else |
1004 | { | |
3263d5a2 KH |
1005 | XSETINT (val, charset.max_code + 1); |
1006 | if (XINT (val) == charset.max_code + 1) | |
1007 | charset.invalid_code = charset.max_code + 1; | |
1008 | else | |
1009 | error ("Attribute :invalid-code must be specified"); | |
76d7b829 | 1010 | } |
76d7b829 | 1011 | } |
3263d5a2 KH |
1012 | else |
1013 | { | |
1014 | CHECK_NATNUM (val); | |
1015 | charset.invalid_code = XFASTINT (val); | |
1016 | } | |
4ed46869 | 1017 | |
3263d5a2 KH |
1018 | val = args[charset_arg_iso_final]; |
1019 | if (NILP (val)) | |
1020 | charset.iso_final = -1; | |
1021 | else | |
1022 | { | |
1023 | CHECK_NUMBER (val); | |
1024 | if (XINT (val) < '0' || XINT (val) > 127) | |
1025 | error ("Invalid iso-final-char: %d", XINT (val)); | |
1026 | charset.iso_final = XINT (val); | |
1027 | } | |
4ed46869 | 1028 | |
3263d5a2 KH |
1029 | val = args[charset_arg_iso_revision]; |
1030 | if (NILP (val)) | |
1031 | charset.iso_revision = -1; | |
1032 | else | |
4ed46869 | 1033 | { |
3263d5a2 KH |
1034 | CHECK_NUMBER (val); |
1035 | if (XINT (val) > 63) | |
1036 | args_out_of_range (make_number (63), val); | |
1037 | charset.iso_revision = XINT (val); | |
4ed46869 | 1038 | } |
4ed46869 | 1039 | |
3263d5a2 KH |
1040 | val = args[charset_arg_emacs_mule_id]; |
1041 | if (NILP (val)) | |
1042 | charset.emacs_mule_id = -1; | |
4ed46869 KH |
1043 | else |
1044 | { | |
3263d5a2 KH |
1045 | CHECK_NATNUM (val); |
1046 | if ((XINT (val) > 0 && XINT (val) <= 128) || XINT (val) >= 256) | |
1047 | error ("Invalid emacs-mule-id: %d", XINT (val)); | |
1048 | charset.emacs_mule_id = XINT (val); | |
c83ef371 | 1049 | } |
f6302ac9 | 1050 | |
3263d5a2 | 1051 | charset.ascii_compatible_p = ! NILP (args[charset_arg_ascii_compatible_p]); |
1d67c29b | 1052 | |
3263d5a2 | 1053 | charset.supplementary_p = ! NILP (args[charset_arg_supplementary_p]); |
4ed46869 | 1054 | |
3263d5a2 KH |
1055 | charset.unified_p = 0; |
1056 | ||
1057 | bzero (charset.fast_map, sizeof (charset.fast_map)); | |
1058 | ||
1059 | if (! NILP (args[charset_arg_code_offset])) | |
1060 | { | |
1061 | val = args[charset_arg_code_offset]; | |
1062 | CHECK_NUMBER (val); | |
1063 | ||
1064 | charset.method = CHARSET_METHOD_OFFSET; | |
1065 | charset.code_offset = XINT (val); | |
1066 | ||
1067 | i = CODE_POINT_TO_INDEX (&charset, charset.min_code); | |
1068 | charset.min_char = i + charset.code_offset; | |
1069 | i = CODE_POINT_TO_INDEX (&charset, charset.max_code); | |
1070 | charset.max_char = i + charset.code_offset; | |
1071 | if (charset.max_char > MAX_CHAR) | |
1072 | error ("Unsupported max char: %d", charset.max_char); | |
1073 | ||
f148205f KH |
1074 | i = (charset.min_char >> 7) << 7; |
1075 | for (; i < 0x10000 && i <= charset.max_char; i += 128) | |
3263d5a2 | 1076 | CHARSET_FAST_MAP_SET (i, charset.fast_map); |
f148205f | 1077 | i = (i >> 12) << 12; |
3263d5a2 KH |
1078 | for (; i <= charset.max_char; i += 0x1000) |
1079 | CHARSET_FAST_MAP_SET (i, charset.fast_map); | |
1080 | } | |
1081 | else if (! NILP (args[charset_arg_map])) | |
1082 | { | |
1083 | val = args[charset_arg_map]; | |
1084 | ASET (attrs, charset_map, val); | |
ecca2aad | 1085 | charset.method = CHARSET_METHOD_MAP; |
3263d5a2 | 1086 | } |
374c5cfd | 1087 | else if (! NILP (args[charset_arg_subset])) |
3263d5a2 | 1088 | { |
374c5cfd KH |
1089 | Lisp_Object parent; |
1090 | Lisp_Object parent_min_code, parent_max_code, parent_code_offset; | |
1091 | struct charset *parent_charset; | |
1092 | ||
1093 | val = args[charset_arg_subset]; | |
1094 | parent = Fcar (val); | |
1095 | CHECK_CHARSET_GET_CHARSET (parent, parent_charset); | |
1096 | parent_min_code = Fnth (make_number (1), val); | |
1097 | CHECK_NATNUM (parent_min_code); | |
1098 | parent_max_code = Fnth (make_number (2), val); | |
1099 | CHECK_NATNUM (parent_max_code); | |
1100 | parent_code_offset = Fnth (make_number (3), val); | |
1101 | CHECK_NUMBER (parent_code_offset); | |
1102 | val = Fmake_vector (make_number (4), Qnil); | |
1103 | ASET (val, 0, make_number (parent_charset->id)); | |
1104 | ASET (val, 1, parent_min_code); | |
1105 | ASET (val, 2, parent_max_code); | |
1106 | ASET (val, 3, parent_code_offset); | |
1107 | ASET (attrs, charset_subset, val); | |
1108 | ||
1109 | charset.method = CHARSET_METHOD_SUBSET; | |
1110 | /* Here, we just copy the parent's fast_map. It's not accurate, | |
1111 | but at least it works for quickly detecting which character | |
1112 | DOESN'T belong to this charset. */ | |
1113 | for (i = 0; i < 190; i++) | |
1114 | charset.fast_map[i] = parent_charset->fast_map[i]; | |
1115 | ||
1116 | /* We also copy these for parents. */ | |
1117 | charset.min_char = parent_charset->min_char; | |
1118 | charset.max_char = parent_charset->max_char; | |
1119 | } | |
1120 | else if (! NILP (args[charset_arg_superset])) | |
0282eb69 | 1121 | { |
374c5cfd KH |
1122 | val = args[charset_arg_superset]; |
1123 | charset.method = CHARSET_METHOD_SUPERSET; | |
3263d5a2 | 1124 | val = Fcopy_sequence (val); |
374c5cfd | 1125 | ASET (attrs, charset_superset, val); |
3263d5a2 KH |
1126 | |
1127 | charset.min_char = MAX_CHAR; | |
1128 | charset.max_char = 0; | |
1129 | for (; ! NILP (val); val = Fcdr (val)) | |
0282eb69 | 1130 | { |
3263d5a2 KH |
1131 | Lisp_Object elt, car_part, cdr_part; |
1132 | int this_id, offset; | |
1133 | struct charset *this_charset; | |
2e344af3 | 1134 | |
3263d5a2 KH |
1135 | elt = Fcar (val); |
1136 | if (CONSP (elt)) | |
2e344af3 | 1137 | { |
3263d5a2 KH |
1138 | car_part = XCAR (elt); |
1139 | cdr_part = XCDR (elt); | |
1140 | CHECK_CHARSET_GET_ID (car_part, this_id); | |
1141 | CHECK_NUMBER (cdr_part); | |
1142 | offset = XINT (cdr_part); | |
177c0ea7 | 1143 | } |
3263d5a2 | 1144 | else |
4ed46869 | 1145 | { |
3263d5a2 KH |
1146 | CHECK_CHARSET_GET_ID (elt, this_id); |
1147 | offset = 0; | |
4ed46869 | 1148 | } |
3263d5a2 KH |
1149 | XSETCAR (val, Fcons (make_number (this_id), make_number (offset))); |
1150 | ||
1151 | this_charset = CHARSET_FROM_ID (this_id); | |
1152 | if (charset.min_char > this_charset->min_char) | |
1153 | charset.min_char = this_charset->min_char; | |
1154 | if (charset.max_char < this_charset->max_char) | |
1155 | charset.max_char = this_charset->max_char; | |
1156 | for (i = 0; i < 190; i++) | |
1157 | charset.fast_map[i] |= this_charset->fast_map[i]; | |
0282eb69 | 1158 | } |
0282eb69 | 1159 | } |
2e344af3 | 1160 | else |
3263d5a2 | 1161 | error ("None of :code-offset, :map, :parents are specified"); |
05505664 | 1162 | |
3263d5a2 KH |
1163 | val = args[charset_arg_unify_map]; |
1164 | if (! NILP (val) && !STRINGP (val)) | |
1165 | CHECK_VECTOR (val); | |
1166 | ASET (attrs, charset_unify_map, val); | |
05505664 | 1167 | |
3263d5a2 KH |
1168 | CHECK_LIST (args[charset_arg_plist]); |
1169 | ASET (attrs, charset_plist, args[charset_arg_plist]); | |
4ed46869 | 1170 | |
3263d5a2 KH |
1171 | charset.hash_index = hash_lookup (hash_table, args[charset_arg_name], |
1172 | &hash_code); | |
1173 | if (charset.hash_index >= 0) | |
1174 | { | |
1175 | new_definition_p = 0; | |
4f65af01 | 1176 | id = XFASTINT (CHARSET_SYMBOL_ID (args[charset_arg_name])); |
3263d5a2 KH |
1177 | HASH_VALUE (hash_table, charset.hash_index) = attrs; |
1178 | } | |
1a45ff10 | 1179 | else |
3263d5a2 KH |
1180 | { |
1181 | charset.hash_index = hash_put (hash_table, args[charset_arg_name], attrs, | |
1182 | hash_code); | |
1183 | if (charset_table_used == charset_table_size) | |
1184 | { | |
2fe1edd1 KH |
1185 | struct charset *new_table |
1186 | = (struct charset *) xmalloc (sizeof (struct charset) | |
1187 | * (charset_table_size + 16)); | |
1188 | bcopy (charset_table, new_table, | |
1189 | sizeof (struct charset) * charset_table_size); | |
1190 | charset_table_size += 16; | |
1191 | charset_table = new_table; | |
3263d5a2 KH |
1192 | } |
1193 | id = charset_table_used++; | |
3263d5a2 KH |
1194 | new_definition_p = 1; |
1195 | } | |
2e344af3 | 1196 | |
4f65af01 | 1197 | ASET (attrs, charset_id, make_number (id)); |
3263d5a2 KH |
1198 | charset.id = id; |
1199 | charset_table[id] = charset; | |
2e344af3 | 1200 | |
ecca2aad KH |
1201 | if (charset.method == CHARSET_METHOD_MAP) |
1202 | load_charset (&charset, 0); | |
1203 | ||
3263d5a2 | 1204 | if (charset.iso_final >= 0) |
4ed46869 | 1205 | { |
3263d5a2 KH |
1206 | ISO_CHARSET_TABLE (charset.dimension, charset.iso_chars_96, |
1207 | charset.iso_final) = id; | |
1208 | if (new_definition_p) | |
1209 | Viso_2022_charset_list = nconc2 (Viso_2022_charset_list, | |
1210 | Fcons (make_number (id), Qnil)); | |
7c7dceee KH |
1211 | if (ISO_CHARSET_TABLE (1, 0, 'J') == id) |
1212 | charset_jisx0201_roman = id; | |
1213 | else if (ISO_CHARSET_TABLE (2, 0, '@') == id) | |
1214 | charset_jisx0208_1978 = id; | |
1215 | else if (ISO_CHARSET_TABLE (2, 0, 'B') == id) | |
1216 | charset_jisx0208 = id; | |
4ed46869 | 1217 | } |
d0cf2d48 | 1218 | |
3263d5a2 | 1219 | if (charset.emacs_mule_id >= 0) |
4ed46869 | 1220 | { |
3263d5a2 | 1221 | emacs_mule_charset[charset.emacs_mule_id] = CHARSET_FROM_ID (id); |
4f65af01 KH |
1222 | if (charset.emacs_mule_id < 0xA0) |
1223 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 1; | |
3b1ae89b KH |
1224 | else |
1225 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 2; | |
3263d5a2 KH |
1226 | if (new_definition_p) |
1227 | Vemacs_mule_charset_list = nconc2 (Vemacs_mule_charset_list, | |
1228 | Fcons (make_number (id), Qnil)); | |
4ed46869 KH |
1229 | } |
1230 | ||
3263d5a2 KH |
1231 | if (new_definition_p) |
1232 | { | |
1233 | Vcharset_list = Fcons (args[charset_arg_name], Vcharset_list); | |
8055c66a KH |
1234 | if (charset.supplementary_p) |
1235 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1236 | Fcons (make_number (id), Qnil)); | |
1237 | else | |
880820fe KH |
1238 | { |
1239 | Lisp_Object tail; | |
1240 | ||
1241 | for (tail = Vcharset_ordered_list; CONSP (tail); tail = XCDR (tail)) | |
1242 | { | |
1243 | struct charset *cs = CHARSET_FROM_ID (XINT (XCAR (tail))); | |
1244 | ||
1245 | if (cs->supplementary_p) | |
1246 | break; | |
1247 | } | |
1248 | if (EQ (tail, Vcharset_ordered_list)) | |
1249 | Vcharset_ordered_list = Fcons (make_number (id), | |
1250 | Vcharset_ordered_list); | |
1251 | else if (NILP (tail)) | |
1252 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1253 | Fcons (make_number (id), Qnil)); | |
1254 | else | |
1255 | { | |
1256 | val = Fcons (XCAR (tail), XCDR (tail)); | |
1257 | XSETCDR (tail, val); | |
1258 | XSETCAR (tail, make_number (id)); | |
1259 | } | |
1260 | } | |
dbbb237d | 1261 | charset_ordered_list_tick++; |
3263d5a2 | 1262 | } |
4ed46869 | 1263 | |
3263d5a2 | 1264 | return Qnil; |
4ed46869 KH |
1265 | } |
1266 | ||
2fe1edd1 KH |
1267 | |
1268 | /* Same as Fdefine_charset_internal but arguments are more convenient | |
1269 | to call from C (typically in syms_of_charset). This can define a | |
1270 | charset of `offset' method only. Return the ID of the new | |
1271 | charset. */ | |
1272 | ||
1273 | static int | |
1274 | define_charset_internal (name, dimension, code_space, min_code, max_code, | |
1275 | iso_final, iso_revision, emacs_mule_id, | |
7acf89e6 | 1276 | ascii_compatible, supplementary, |
2fe1edd1 KH |
1277 | code_offset) |
1278 | Lisp_Object name; | |
1279 | int dimension; | |
1280 | unsigned char *code_space; | |
1281 | unsigned min_code, max_code; | |
1282 | int iso_final, iso_revision, emacs_mule_id; | |
7acf89e6 | 1283 | int ascii_compatible, supplementary; |
2fe1edd1 KH |
1284 | int code_offset; |
1285 | { | |
1286 | Lisp_Object args[charset_arg_max]; | |
1287 | Lisp_Object plist[14]; | |
1288 | Lisp_Object val; | |
1289 | int i; | |
1290 | ||
1291 | args[charset_arg_name] = name; | |
1292 | args[charset_arg_dimension] = make_number (dimension); | |
1293 | val = Fmake_vector (make_number (8), make_number (0)); | |
1294 | for (i = 0; i < 8; i++) | |
1295 | ASET (val, i, make_number (code_space[i])); | |
1296 | args[charset_arg_code_space] = val; | |
1297 | args[charset_arg_min_code] = make_number (min_code); | |
1298 | args[charset_arg_max_code] = make_number (max_code); | |
1299 | args[charset_arg_iso_final] | |
1300 | = (iso_final < 0 ? Qnil : make_number (iso_final)); | |
1301 | args[charset_arg_iso_revision] = make_number (iso_revision); | |
1302 | args[charset_arg_emacs_mule_id] | |
1303 | = (emacs_mule_id < 0 ? Qnil : make_number (emacs_mule_id)); | |
1304 | args[charset_arg_ascii_compatible_p] = ascii_compatible ? Qt : Qnil; | |
7acf89e6 | 1305 | args[charset_arg_supplementary_p] = supplementary ? Qt : Qnil; |
2fe1edd1 KH |
1306 | args[charset_arg_invalid_code] = Qnil; |
1307 | args[charset_arg_code_offset] = make_number (code_offset); | |
1308 | args[charset_arg_map] = Qnil; | |
1309 | args[charset_arg_subset] = Qnil; | |
1310 | args[charset_arg_superset] = Qnil; | |
1311 | args[charset_arg_unify_map] = Qnil; | |
1312 | ||
1313 | plist[0] = intern (":name"); | |
1314 | plist[1] = args[charset_arg_name]; | |
1315 | plist[2] = intern (":dimension"); | |
1316 | plist[3] = args[charset_arg_dimension]; | |
1317 | plist[4] = intern (":code-space"); | |
1318 | plist[5] = args[charset_arg_code_space]; | |
1319 | plist[6] = intern (":iso-final-char"); | |
1320 | plist[7] = args[charset_arg_iso_final]; | |
1321 | plist[8] = intern (":emacs-mule-id"); | |
1322 | plist[9] = args[charset_arg_emacs_mule_id]; | |
1323 | plist[10] = intern (":ascii-compatible-p"); | |
1324 | plist[11] = args[charset_arg_ascii_compatible_p]; | |
1325 | plist[12] = intern (":code-offset"); | |
1326 | plist[13] = args[charset_arg_code_offset]; | |
1327 | ||
1328 | args[charset_arg_plist] = Flist (14, plist); | |
1329 | Fdefine_charset_internal (charset_arg_max, args); | |
1330 | ||
1331 | return XINT (CHARSET_SYMBOL_ID (name)); | |
1332 | } | |
1333 | ||
1334 | ||
3263d5a2 KH |
1335 | DEFUN ("define-charset-alias", Fdefine_charset_alias, |
1336 | Sdefine_charset_alias, 2, 2, 0, | |
1337 | doc: /* Define ALIAS as an alias for charset CHARSET. */) | |
1338 | (alias, charset) | |
1339 | Lisp_Object alias, charset; | |
4ed46869 | 1340 | { |
3263d5a2 KH |
1341 | Lisp_Object attr; |
1342 | ||
1343 | CHECK_CHARSET_GET_ATTR (charset, attr); | |
1344 | Fputhash (alias, attr, Vcharset_hash_table); | |
528623a0 | 1345 | Vcharset_list = Fcons (alias, Vcharset_list); |
3263d5a2 KH |
1346 | return Qnil; |
1347 | } | |
4ed46869 | 1348 | |
4ed46869 | 1349 | |
3263d5a2 | 1350 | DEFUN ("charset-plist", Fcharset_plist, Scharset_plist, 1, 1, 0, |
56a46d1d | 1351 | doc: /* Return the property list of CHARSET. */) |
3263d5a2 KH |
1352 | (charset) |
1353 | Lisp_Object charset; | |
1354 | { | |
1355 | Lisp_Object attrs; | |
1356 | ||
1357 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1358 | return CHARSET_ATTR_PLIST (attrs); | |
1359 | } | |
1360 | ||
1361 | ||
1362 | DEFUN ("set-charset-plist", Fset_charset_plist, Sset_charset_plist, 2, 2, 0, | |
1363 | doc: /* Set CHARSET's property list to PLIST. */) | |
1364 | (charset, plist) | |
1365 | Lisp_Object charset, plist; | |
1366 | { | |
1367 | Lisp_Object attrs; | |
1368 | ||
1369 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1370 | CHARSET_ATTR_PLIST (attrs) = plist; | |
1371 | return plist; | |
1372 | } | |
1373 | ||
1374 | ||
dbbb237d | 1375 | DEFUN ("unify-charset", Funify_charset, Sunify_charset, 1, 3, 0, |
56a46d1d DL |
1376 | doc: /* Unify characters of CHARSET with Unicode. |
1377 | This means reading the relevant file and installing the table defined | |
dbbb237d KH |
1378 | by CHARSET's `:unify-map' property. |
1379 | ||
64165ae2 DL |
1380 | Optional second arg UNIFY-MAP is a file name string or a vector. It has |
1381 | the same meaning as the `:unify-map' attribute in the function | |
dbbb237d KH |
1382 | `define-charset' (which see). |
1383 | ||
1384 | Optional third argument DEUNIFY, if non-nil, means to de-unify CHARSET. */) | |
1385 | (charset, unify_map, deunify) | |
1386 | Lisp_Object charset, unify_map, deunify; | |
8a73a704 | 1387 | { |
3263d5a2 KH |
1388 | int id; |
1389 | struct charset *cs; | |
8f924df7 | 1390 | |
3263d5a2 KH |
1391 | CHECK_CHARSET_GET_ID (charset, id); |
1392 | cs = CHARSET_FROM_ID (id); | |
dbbb237d KH |
1393 | if (NILP (deunify) |
1394 | ? CHARSET_UNIFIED_P (cs) && ! NILP (CHARSET_DEUNIFIER (cs)) | |
1395 | : ! CHARSET_UNIFIED_P (cs)) | |
3263d5a2 | 1396 | return Qnil; |
dbbb237d | 1397 | |
3263d5a2 | 1398 | CHARSET_UNIFIED_P (cs) = 0; |
dbbb237d KH |
1399 | if (NILP (deunify)) |
1400 | { | |
ecca2aad KH |
1401 | if (CHARSET_METHOD (cs) != CHARSET_METHOD_OFFSET |
1402 | || CHARSET_CODE_OFFSET (cs) < 0x110000) | |
8f924df7 | 1403 | error ("Can't unify charset: %s", SDATA (SYMBOL_NAME (charset))); |
dbbb237d KH |
1404 | if (NILP (unify_map)) |
1405 | unify_map = CHARSET_UNIFY_MAP (cs); | |
dbbb237d | 1406 | else |
ecca2aad KH |
1407 | { |
1408 | if (! STRINGP (unify_map) && ! VECTORP (unify_map)) | |
1409 | signal_error ("Bad unify-map", unify_map); | |
1410 | CHARSET_UNIFY_MAP (cs) = unify_map; | |
1411 | } | |
1412 | if (NILP (Vchar_unify_table)) | |
1413 | Vchar_unify_table = Fmake_char_table (Qnil, Qnil); | |
1414 | char_table_set_range (Vchar_unify_table, | |
1415 | cs->min_char, cs->max_char, charset); | |
dbbb237d KH |
1416 | CHARSET_UNIFIED_P (cs) = 1; |
1417 | } | |
1418 | else if (CHAR_TABLE_P (Vchar_unify_table)) | |
1419 | { | |
1420 | int min_code = CHARSET_MIN_CODE (cs); | |
1421 | int max_code = CHARSET_MAX_CODE (cs); | |
1422 | int min_char = DECODE_CHAR (cs, min_code); | |
1423 | int max_char = DECODE_CHAR (cs, max_code); | |
8f924df7 | 1424 | |
dbbb237d KH |
1425 | char_table_set_range (Vchar_unify_table, min_char, max_char, Qnil); |
1426 | } | |
8f924df7 | 1427 | |
3263d5a2 | 1428 | return Qnil; |
8a73a704 KH |
1429 | } |
1430 | ||
3fac5a51 KH |
1431 | DEFUN ("get-unused-iso-final-char", Fget_unused_iso_final_char, |
1432 | Sget_unused_iso_final_char, 2, 2, 0, | |
3263d5a2 | 1433 | doc: /* |
d0cf2d48 | 1434 | Return an unused ISO final char for a charset of DIMENSION and CHARS. |
fdb82f93 PJ |
1435 | DIMENSION is the number of bytes to represent a character: 1 or 2. |
1436 | CHARS is the number of characters in a dimension: 94 or 96. | |
1437 | ||
1438 | This final char is for private use, thus the range is `0' (48) .. `?' (63). | |
1721b6af | 1439 | If there's no unused final char for the specified kind of charset, |
fdb82f93 PJ |
1440 | return nil. */) |
1441 | (dimension, chars) | |
3fac5a51 KH |
1442 | Lisp_Object dimension, chars; |
1443 | { | |
1444 | int final_char; | |
1445 | ||
b7826503 PJ |
1446 | CHECK_NUMBER (dimension); |
1447 | CHECK_NUMBER (chars); | |
3263d5a2 KH |
1448 | if (XINT (dimension) != 1 && XINT (dimension) != 2 && XINT (dimension) != 3) |
1449 | args_out_of_range_3 (dimension, make_number (1), make_number (3)); | |
3fac5a51 | 1450 | if (XINT (chars) != 94 && XINT (chars) != 96) |
3263d5a2 | 1451 | args_out_of_range_3 (chars, make_number (94), make_number (96)); |
3fac5a51 | 1452 | for (final_char = '0'; final_char <= '?'; final_char++) |
3263d5a2 KH |
1453 | if (ISO_CHARSET_TABLE (XINT (dimension), XINT (chars), final_char) < 0) |
1454 | break; | |
3fac5a51 KH |
1455 | return (final_char <= '?' ? make_number (final_char) : Qnil); |
1456 | } | |
1457 | ||
3263d5a2 KH |
1458 | static void |
1459 | check_iso_charset_parameter (dimension, chars, final_char) | |
1460 | Lisp_Object dimension, chars, final_char; | |
4ed46869 | 1461 | { |
3263d5a2 KH |
1462 | CHECK_NATNUM (dimension); |
1463 | CHECK_NATNUM (chars); | |
1464 | CHECK_NATNUM (final_char); | |
4ed46869 | 1465 | |
3263d5a2 KH |
1466 | if (XINT (dimension) > 3) |
1467 | error ("Invalid DIMENSION %d, it should be 1, 2, or 3", XINT (dimension)); | |
4ed46869 KH |
1468 | if (XINT (chars) != 94 && XINT (chars) != 96) |
1469 | error ("Invalid CHARS %d, it should be 94 or 96", XINT (chars)); | |
3263d5a2 | 1470 | if (XINT (final_char) < '0' || XINT (final_char) > '~') |
4ed46869 | 1471 | error ("Invalid FINAL-CHAR %c, it should be `0'..`~'", XINT (chars)); |
3263d5a2 KH |
1472 | } |
1473 | ||
1474 | ||
1475 | DEFUN ("declare-equiv-charset", Fdeclare_equiv_charset, Sdeclare_equiv_charset, | |
1476 | 4, 4, 0, | |
cefd8c4f KH |
1477 | doc: /* Declare an equivalent charset for ISO-2022 decoding. |
1478 | ||
1479 | On decoding by an ISO-2022 base coding system, when a charset | |
1480 | specified by DIMENSION, CHARS, and FINAL-CHAR is designated, behave as | |
1481 | if CHARSET is designated instead. */) | |
3263d5a2 KH |
1482 | (dimension, chars, final_char, charset) |
1483 | Lisp_Object dimension, chars, final_char, charset; | |
1484 | { | |
1485 | int id; | |
82215ce9 | 1486 | int chars_flag; |
4ed46869 | 1487 | |
3263d5a2 KH |
1488 | CHECK_CHARSET_GET_ID (charset, id); |
1489 | check_iso_charset_parameter (dimension, chars, final_char); | |
82215ce9 KH |
1490 | chars_flag = XINT (chars) == 96; |
1491 | ISO_CHARSET_TABLE (XINT (dimension), chars_flag, XINT (final_char)) = id; | |
4ed46869 KH |
1492 | return Qnil; |
1493 | } | |
1494 | ||
3263d5a2 | 1495 | |
2e344af3 KH |
1496 | /* Return information about charsets in the text at PTR of NBYTES |
1497 | bytes, which are NCHARS characters. The value is: | |
f6302ac9 | 1498 | |
cfe34140 | 1499 | 0: Each character is represented by one byte. This is always |
3263d5a2 KH |
1500 | true for a unibyte string. For a multibyte string, true if |
1501 | it contains only ASCII characters. | |
1502 | ||
28c026cd DL |
1503 | 1: No charsets other than ascii, control-1, and latin-1 are |
1504 | found. | |
1d67c29b | 1505 | |
3263d5a2 KH |
1506 | 2: Otherwise. |
1507 | */ | |
4ed46869 KH |
1508 | |
1509 | int | |
3263d5a2 KH |
1510 | string_xstring_p (string) |
1511 | Lisp_Object string; | |
4ed46869 | 1512 | { |
8f924df7 KH |
1513 | const unsigned char *p = SDATA (string); |
1514 | const unsigned char *endp = p + SBYTES (string); | |
3263d5a2 | 1515 | |
8f924df7 | 1516 | if (SCHARS (string) == SBYTES (string)) |
3263d5a2 KH |
1517 | return 0; |
1518 | ||
3263d5a2 | 1519 | while (p < endp) |
0282eb69 | 1520 | { |
3263d5a2 | 1521 | int c = STRING_CHAR_ADVANCE (p); |
2e344af3 | 1522 | |
3cc67a4d | 1523 | if (c >= 0x100) |
3263d5a2 | 1524 | return 2; |
0282eb69 | 1525 | } |
3263d5a2 KH |
1526 | return 1; |
1527 | } | |
05505664 | 1528 | |
05505664 | 1529 | |
3263d5a2 | 1530 | /* Find charsets in the string at PTR of NCHARS and NBYTES. |
4ed46869 | 1531 | |
3cc67a4d KH |
1532 | CHARSETS is a vector. If Nth element is non-nil, it means the |
1533 | charset whose id is N is already found. | |
2e344af3 | 1534 | |
3263d5a2 | 1535 | It may lookup a translation table TABLE if supplied. */ |
2e344af3 | 1536 | |
3263d5a2 | 1537 | static void |
3cc67a4d | 1538 | find_charsets_in_text (ptr, nchars, nbytes, charsets, table, multibyte) |
dbbb237d | 1539 | const unsigned char *ptr; |
42ca828e | 1540 | EMACS_INT nchars, nbytes; |
3263d5a2 | 1541 | Lisp_Object charsets, table; |
3cc67a4d | 1542 | int multibyte; |
3263d5a2 | 1543 | { |
dbbb237d | 1544 | const unsigned char *pend = ptr + nbytes; |
3263d5a2 KH |
1545 | |
1546 | if (nchars == nbytes) | |
3263d5a2 | 1547 | { |
3cc67a4d KH |
1548 | if (multibyte) |
1549 | ASET (charsets, charset_ascii, Qt); | |
1550 | else | |
1551 | while (ptr < pend) | |
1552 | { | |
1553 | int c = *ptr++; | |
1554 | ||
1555 | if (!NILP (table)) | |
1556 | c = translate_char (table, c); | |
1557 | if (ASCII_BYTE_P (c)) | |
1558 | ASET (charsets, charset_ascii, Qt); | |
1559 | else | |
1560 | ASET (charsets, charset_eight_bit, Qt); | |
1561 | } | |
1562 | } | |
1563 | else | |
1564 | { | |
1565 | while (ptr < pend) | |
3263d5a2 | 1566 | { |
3cc67a4d KH |
1567 | int c = STRING_CHAR_ADVANCE (ptr); |
1568 | struct charset *charset; | |
3263d5a2 | 1569 | |
3cc67a4d KH |
1570 | if (!NILP (table)) |
1571 | c = translate_char (table, c); | |
1572 | charset = CHAR_CHARSET (c); | |
1573 | ASET (charsets, CHARSET_ID (charset), Qt); | |
4ed46869 | 1574 | } |
4ed46869 | 1575 | } |
4ed46869 KH |
1576 | } |
1577 | ||
1578 | DEFUN ("find-charset-region", Ffind_charset_region, Sfind_charset_region, | |
23d2a7f1 | 1579 | 2, 3, 0, |
fdb82f93 PJ |
1580 | doc: /* Return a list of charsets in the region between BEG and END. |
1581 | BEG and END are buffer positions. | |
1582 | Optional arg TABLE if non-nil is a translation table to look up. | |
1583 | ||
fdb82f93 PJ |
1584 | If the current buffer is unibyte, the returned list may contain |
1585 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) | |
1586 | (beg, end, table) | |
23d2a7f1 | 1587 | Lisp_Object beg, end, table; |
4ed46869 | 1588 | { |
3263d5a2 | 1589 | Lisp_Object charsets; |
42ca828e DL |
1590 | EMACS_INT from, from_byte, to, stop, stop_byte; |
1591 | int i; | |
4ed46869 | 1592 | Lisp_Object val; |
3cc67a4d | 1593 | int multibyte = ! NILP (current_buffer->enable_multibyte_characters); |
4ed46869 KH |
1594 | |
1595 | validate_region (&beg, &end); | |
1596 | from = XFASTINT (beg); | |
1597 | stop = to = XFASTINT (end); | |
6ae1f27e | 1598 | |
4ed46869 | 1599 | if (from < GPT && GPT < to) |
6ae1f27e RS |
1600 | { |
1601 | stop = GPT; | |
1602 | stop_byte = GPT_BYTE; | |
1603 | } | |
1604 | else | |
1605 | stop_byte = CHAR_TO_BYTE (stop); | |
1606 | ||
1607 | from_byte = CHAR_TO_BYTE (from); | |
1608 | ||
3263d5a2 | 1609 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
4ed46869 KH |
1610 | while (1) |
1611 | { | |
3263d5a2 | 1612 | find_charsets_in_text (BYTE_POS_ADDR (from_byte), stop - from, |
3cc67a4d KH |
1613 | stop_byte - from_byte, charsets, table, |
1614 | multibyte); | |
4ed46869 | 1615 | if (stop < to) |
6ae1f27e RS |
1616 | { |
1617 | from = stop, from_byte = stop_byte; | |
1618 | stop = to, stop_byte = CHAR_TO_BYTE (stop); | |
1619 | } | |
4ed46869 KH |
1620 | else |
1621 | break; | |
1622 | } | |
6ae1f27e | 1623 | |
4ed46869 | 1624 | val = Qnil; |
3263d5a2 | 1625 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1626 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1627 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1628 | return val; |
1629 | } | |
1630 | ||
1631 | DEFUN ("find-charset-string", Ffind_charset_string, Sfind_charset_string, | |
23d2a7f1 | 1632 | 1, 2, 0, |
fdb82f93 PJ |
1633 | doc: /* Return a list of charsets in STR. |
1634 | Optional arg TABLE if non-nil is a translation table to look up. | |
1635 | ||
fdb82f93 | 1636 | If STR is unibyte, the returned list may contain |
3263d5a2 | 1637 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) |
fdb82f93 | 1638 | (str, table) |
23d2a7f1 | 1639 | Lisp_Object str, table; |
4ed46869 | 1640 | { |
3263d5a2 | 1641 | Lisp_Object charsets; |
4ed46869 KH |
1642 | int i; |
1643 | Lisp_Object val; | |
1644 | ||
b7826503 | 1645 | CHECK_STRING (str); |
87b089ad | 1646 | |
3263d5a2 | 1647 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
8f924df7 | 1648 | find_charsets_in_text (SDATA (str), SCHARS (str), SBYTES (str), |
3cc67a4d KH |
1649 | charsets, table, |
1650 | STRING_MULTIBYTE (str)); | |
4ed46869 | 1651 | val = Qnil; |
3263d5a2 | 1652 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1653 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1654 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1655 | return val; |
1656 | } | |
2e344af3 | 1657 | |
4ed46869 | 1658 | \f |
3263d5a2 | 1659 | |
ecca2aad KH |
1660 | /* Return a unified character code for C (>= 0x110000). VAL is a |
1661 | value of Vchar_unify_table for C; i.e. it is nil, an integer, or a | |
1662 | charset symbol. */ | |
1663 | int | |
1664 | maybe_unify_char (c, val) | |
1665 | int c; | |
1666 | Lisp_Object val; | |
1667 | { | |
1668 | struct charset *charset; | |
1669 | ||
1670 | if (INTEGERP (val)) | |
1671 | return XINT (val); | |
1672 | if (NILP (val)) | |
1673 | return c; | |
1674 | ||
1675 | CHECK_CHARSET_GET_CHARSET (val, charset); | |
1676 | load_charset (charset, 1); | |
1677 | if (! inhibit_load_charset_map) | |
1678 | { | |
1679 | val = CHAR_TABLE_REF (Vchar_unify_table, c); | |
1680 | if (! NILP (val)) | |
1681 | c = XINT (val); | |
1682 | } | |
1683 | else | |
1684 | { | |
1685 | int code_index = c - CHARSET_CODE_OFFSET (charset); | |
1686 | int unified = GET_TEMP_CHARSET_WORK_DECODER (code_index); | |
1687 | ||
1688 | if (unified > 0) | |
1689 | c = unified; | |
1690 | } | |
1691 | return c; | |
1692 | } | |
1693 | ||
1694 | ||
3263d5a2 KH |
1695 | /* Return a character correponding to the code-point CODE of |
1696 | CHARSET. */ | |
1697 | ||
1698 | int | |
1699 | decode_char (charset, code) | |
1700 | struct charset *charset; | |
1701 | unsigned code; | |
4ed46869 | 1702 | { |
3263d5a2 KH |
1703 | int c, char_index; |
1704 | enum charset_method method = CHARSET_METHOD (charset); | |
ac4137cc | 1705 | |
3263d5a2 KH |
1706 | if (code < CHARSET_MIN_CODE (charset) || code > CHARSET_MAX_CODE (charset)) |
1707 | return -1; | |
4ed46869 | 1708 | |
374c5cfd | 1709 | if (method == CHARSET_METHOD_SUBSET) |
2e344af3 | 1710 | { |
374c5cfd KH |
1711 | Lisp_Object subset_info; |
1712 | ||
1713 | subset_info = CHARSET_SUBSET (charset); | |
1714 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1715 | code -= XINT (AREF (subset_info, 3)); | |
1716 | if (code < XFASTINT (AREF (subset_info, 1)) | |
1717 | || code > XFASTINT (AREF (subset_info, 2))) | |
1718 | c = -1; | |
1719 | else | |
1720 | c = DECODE_CHAR (charset, code); | |
2e344af3 | 1721 | } |
374c5cfd | 1722 | else if (method == CHARSET_METHOD_SUPERSET) |
2e344af3 | 1723 | { |
3263d5a2 | 1724 | Lisp_Object parents; |
4ed46869 | 1725 | |
374c5cfd | 1726 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 KH |
1727 | c = -1; |
1728 | for (; CONSP (parents); parents = XCDR (parents)) | |
1729 | { | |
1730 | int id = XINT (XCAR (XCAR (parents))); | |
1731 | int code_offset = XINT (XCDR (XCAR (parents))); | |
374c5cfd | 1732 | unsigned this_code = code - code_offset; |
4ed46869 | 1733 | |
3263d5a2 KH |
1734 | charset = CHARSET_FROM_ID (id); |
1735 | if ((c = DECODE_CHAR (charset, this_code)) >= 0) | |
1736 | break; | |
1737 | } | |
1738 | } | |
1739 | else | |
ac4137cc | 1740 | { |
3263d5a2 | 1741 | char_index = CODE_POINT_TO_INDEX (charset, code); |
69f8de5b KH |
1742 | if (char_index < 0) |
1743 | return -1; | |
4ed46869 | 1744 | |
3263d5a2 | 1745 | if (method == CHARSET_METHOD_MAP) |
ac4137cc | 1746 | { |
3263d5a2 | 1747 | Lisp_Object decoder; |
4ed46869 | 1748 | |
3263d5a2 KH |
1749 | decoder = CHARSET_DECODER (charset); |
1750 | if (! VECTORP (decoder)) | |
ecca2aad KH |
1751 | { |
1752 | load_charset (charset, 1); | |
1753 | decoder = CHARSET_DECODER (charset); | |
1754 | } | |
1755 | if (VECTORP (decoder)) | |
1756 | c = XINT (AREF (decoder, char_index)); | |
1757 | else | |
1758 | c = GET_TEMP_CHARSET_WORK_DECODER (char_index); | |
ac4137cc | 1759 | } |
ecca2aad | 1760 | else /* method == CHARSET_METHOD_OFFSET */ |
ac4137cc | 1761 | { |
3263d5a2 | 1762 | c = char_index + CHARSET_CODE_OFFSET (charset); |
ecca2aad KH |
1763 | if (CHARSET_UNIFIED_P (charset) |
1764 | && c > MAX_UNICODE_CHAR) | |
1765 | MAYBE_UNIFY_CHAR (c); | |
ac4137cc KH |
1766 | } |
1767 | } | |
4ed46869 | 1768 | |
3263d5a2 | 1769 | return c; |
90d7b74e KH |
1770 | } |
1771 | ||
374c5cfd KH |
1772 | /* Variable used temporarily by the macro ENCODE_CHAR. */ |
1773 | Lisp_Object charset_work; | |
4ed46869 | 1774 | |
3263d5a2 | 1775 | /* Return a code-point of CHAR in CHARSET. If CHAR doesn't belong to |
28c026cd DL |
1776 | CHARSET, return CHARSET_INVALID_CODE (CHARSET). If STRICT is true, |
1777 | use CHARSET's strict_max_char instead of max_char. */ | |
4ed46869 | 1778 | |
3263d5a2 KH |
1779 | unsigned |
1780 | encode_char (charset, c) | |
1781 | struct charset *charset; | |
9b6a601f | 1782 | int c; |
9d3d8cba | 1783 | { |
3263d5a2 KH |
1784 | unsigned code; |
1785 | enum charset_method method = CHARSET_METHOD (charset); | |
9d3d8cba | 1786 | |
3263d5a2 | 1787 | if (CHARSET_UNIFIED_P (charset)) |
ac4137cc | 1788 | { |
374c5cfd | 1789 | Lisp_Object deunifier, deunified; |
ecca2aad | 1790 | int code_index = -1; |
4ed46869 | 1791 | |
3263d5a2 KH |
1792 | deunifier = CHARSET_DEUNIFIER (charset); |
1793 | if (! CHAR_TABLE_P (deunifier)) | |
ac4137cc | 1794 | { |
ecca2aad | 1795 | load_charset (charset, 2); |
3263d5a2 | 1796 | deunifier = CHARSET_DEUNIFIER (charset); |
ac4137cc | 1797 | } |
ecca2aad KH |
1798 | if (CHAR_TABLE_P (deunifier)) |
1799 | { | |
1800 | Lisp_Object deunified = CHAR_TABLE_REF (deunifier, c); | |
1801 | ||
1802 | if (INTEGERP (deunified)) | |
1803 | code_index = XINT (deunified); | |
1804 | } | |
1805 | else | |
1806 | { | |
1807 | code_index = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
1808 | } | |
1809 | if (code_index >= 0) | |
1810 | c = CHARSET_CODE_OFFSET (charset) + code_index; | |
ac4137cc | 1811 | } |
9d3d8cba | 1812 | |
374c5cfd KH |
1813 | if (method == CHARSET_METHOD_SUBSET) |
1814 | { | |
1815 | Lisp_Object subset_info; | |
1816 | struct charset *this_charset; | |
1817 | ||
1818 | subset_info = CHARSET_SUBSET (charset); | |
1819 | this_charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1820 | code = ENCODE_CHAR (this_charset, c); | |
1821 | if (code == CHARSET_INVALID_CODE (this_charset) | |
1822 | || code < XFASTINT (AREF (subset_info, 1)) | |
1823 | || code > XFASTINT (AREF (subset_info, 2))) | |
1824 | return CHARSET_INVALID_CODE (charset); | |
1825 | code += XINT (AREF (subset_info, 3)); | |
1826 | return code; | |
1827 | } | |
9d3d8cba | 1828 | |
374c5cfd | 1829 | if (method == CHARSET_METHOD_SUPERSET) |
859f2b3c | 1830 | { |
3263d5a2 | 1831 | Lisp_Object parents; |
d2665018 | 1832 | |
374c5cfd | 1833 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 | 1834 | for (; CONSP (parents); parents = XCDR (parents)) |
beeedaad | 1835 | { |
3263d5a2 KH |
1836 | int id = XINT (XCAR (XCAR (parents))); |
1837 | int code_offset = XINT (XCDR (XCAR (parents))); | |
1838 | struct charset *this_charset = CHARSET_FROM_ID (id); | |
d2665018 | 1839 | |
3263d5a2 | 1840 | code = ENCODE_CHAR (this_charset, c); |
dbbb237d KH |
1841 | if (code != CHARSET_INVALID_CODE (this_charset)) |
1842 | return code + code_offset; | |
beeedaad | 1843 | } |
3263d5a2 KH |
1844 | return CHARSET_INVALID_CODE (charset); |
1845 | } | |
1bcc1567 | 1846 | |
15c85a88 KH |
1847 | if (! CHARSET_FAST_MAP_REF ((c), charset->fast_map) |
1848 | || c < CHARSET_MIN_CHAR (charset) || c > CHARSET_MAX_CHAR (charset)) | |
1849 | return CHARSET_INVALID_CODE (charset); | |
1bcc1567 | 1850 | |
3263d5a2 | 1851 | if (method == CHARSET_METHOD_MAP) |
3f62427c | 1852 | { |
3263d5a2 | 1853 | Lisp_Object encoder; |
beeedaad | 1854 | Lisp_Object val; |
9b6a601f | 1855 | |
3263d5a2 KH |
1856 | encoder = CHARSET_ENCODER (charset); |
1857 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
ecca2aad KH |
1858 | load_charset (charset); |
1859 | if (CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
1860 | { | |
1861 | val = CHAR_TABLE_REF (encoder, c); | |
1862 | if (NILP (val)) | |
1863 | return CHARSET_INVALID_CODE (charset); | |
1864 | code = XINT (val); | |
1865 | if (! CHARSET_COMPACT_CODES_P (charset)) | |
1866 | code = INDEX_TO_CODE_POINT (charset, code); | |
1867 | } | |
1868 | else | |
1869 | { | |
1870 | code = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
1871 | code = INDEX_TO_CODE_POINT (charset, code); | |
1872 | } | |
3263d5a2 | 1873 | } |
820ee249 | 1874 | else /* method == CHARSET_METHOD_OFFSET */ |
beeedaad | 1875 | { |
ecca2aad KH |
1876 | int code_index = c - CHARSET_CODE_OFFSET (charset); |
1877 | ||
1878 | code = INDEX_TO_CODE_POINT (charset, code_index); | |
3f62427c | 1879 | } |
8ac5a9cc | 1880 | |
3263d5a2 | 1881 | return code; |
4ed46869 KH |
1882 | } |
1883 | ||
4ed46869 | 1884 | |
3263d5a2 KH |
1885 | DEFUN ("decode-char", Fdecode_char, Sdecode_char, 2, 3, 0, |
1886 | doc: /* Decode the pair of CHARSET and CODE-POINT into a character. | |
1887 | Return nil if CODE-POINT is not valid in CHARSET. | |
4ed46869 | 1888 | |
3263d5a2 | 1889 | CODE-POINT may be a cons (HIGHER-16-BIT-VALUE . LOWER-16-BIT-VALUE). |
859f2b3c | 1890 | |
3263d5a2 | 1891 | Optional argument RESTRICTION specifies a way to map the pair of CCS |
d0cf2d48 | 1892 | and CODE-POINT to a character. Currently not supported and just ignored. */) |
3263d5a2 KH |
1893 | (charset, code_point, restriction) |
1894 | Lisp_Object charset, code_point, restriction; | |
4ed46869 | 1895 | { |
3263d5a2 KH |
1896 | int c, id; |
1897 | unsigned code; | |
1898 | struct charset *charsetp; | |
859f2b3c | 1899 | |
3263d5a2 KH |
1900 | CHECK_CHARSET_GET_ID (charset, id); |
1901 | if (CONSP (code_point)) | |
1902 | { | |
8f924df7 KH |
1903 | CHECK_NATNUM_CAR (code_point); |
1904 | CHECK_NATNUM_CDR (code_point); | |
69f8de5b | 1905 | code = (XINT (XCAR (code_point)) << 16) | (XINT (XCDR (code_point))); |
3263d5a2 | 1906 | } |
4ed46869 KH |
1907 | else |
1908 | { | |
3263d5a2 KH |
1909 | CHECK_NATNUM (code_point); |
1910 | code = XINT (code_point); | |
4ed46869 | 1911 | } |
3263d5a2 KH |
1912 | charsetp = CHARSET_FROM_ID (id); |
1913 | c = DECODE_CHAR (charsetp, code); | |
1914 | return (c >= 0 ? make_number (c) : Qnil); | |
4ed46869 KH |
1915 | } |
1916 | ||
859f2b3c | 1917 | |
3263d5a2 KH |
1918 | DEFUN ("encode-char", Fencode_char, Sencode_char, 2, 3, 0, |
1919 | doc: /* Encode the character CH into a code-point of CHARSET. | |
1920 | Return nil if CHARSET doesn't include CH. | |
17e7ef1b | 1921 | |
d0cf2d48 | 1922 | Optional argument RESTRICTION specifies a way to map CH to a |
3263d5a2 KH |
1923 | code-point in CCS. Currently not supported and just ignored. */) |
1924 | (ch, charset, restriction) | |
1925 | Lisp_Object ch, charset, restriction; | |
4ed46869 | 1926 | { |
16fed1fc | 1927 | int id; |
3263d5a2 KH |
1928 | unsigned code; |
1929 | struct charset *charsetp; | |
046b1f03 | 1930 | |
3263d5a2 KH |
1931 | CHECK_CHARSET_GET_ID (charset, id); |
1932 | CHECK_NATNUM (ch); | |
3263d5a2 | 1933 | charsetp = CHARSET_FROM_ID (id); |
16fed1fc | 1934 | code = ENCODE_CHAR (charsetp, XINT (ch)); |
3263d5a2 KH |
1935 | if (code == CHARSET_INVALID_CODE (charsetp)) |
1936 | return Qnil; | |
1937 | if (code > 0x7FFFFFF) | |
1938 | return Fcons (make_number (code >> 16), make_number (code & 0xFFFF)); | |
1939 | return make_number (code); | |
beeedaad KH |
1940 | } |
1941 | ||
beeedaad | 1942 | |
b121a744 KH |
1943 | DEFUN ("make-char", Fmake_char, Smake_char, 1, 5, 0, |
1944 | doc: | |
1945 | /* Return a character of CHARSET whose position codes are CODEn. | |
1946 | ||
1947 | CODE1 through CODE4 are optional, but if you don't supply sufficient | |
1948 | position codes, it is assumed that the minimum code in each dimension | |
04c2f2c5 | 1949 | is specified. */) |
b121a744 KH |
1950 | (charset, code1, code2, code3, code4) |
1951 | Lisp_Object charset, code1, code2, code3, code4; | |
beeedaad | 1952 | { |
3263d5a2 KH |
1953 | int id, dimension; |
1954 | struct charset *charsetp; | |
b121a744 KH |
1955 | unsigned code; |
1956 | int c; | |
87b089ad | 1957 | |
3263d5a2 KH |
1958 | CHECK_CHARSET_GET_ID (charset, id); |
1959 | charsetp = CHARSET_FROM_ID (id); | |
4ed46869 | 1960 | |
b121a744 KH |
1961 | dimension = CHARSET_DIMENSION (charsetp); |
1962 | if (NILP (code1)) | |
d47073ca KH |
1963 | code = (CHARSET_ASCII_COMPATIBLE_P (charsetp) |
1964 | ? 0 : CHARSET_MIN_CODE (charsetp)); | |
3263d5a2 | 1965 | else |
859f2b3c | 1966 | { |
b121a744 KH |
1967 | CHECK_NATNUM (code1); |
1968 | if (XFASTINT (code1) >= 0x100) | |
1969 | args_out_of_range (make_number (0xFF), code1); | |
1970 | code = XFASTINT (code1); | |
859f2b3c | 1971 | |
b0a1e45e | 1972 | if (dimension > 1) |
beeedaad | 1973 | { |
b121a744 | 1974 | code <<= 8; |
b0a1e45e KH |
1975 | if (NILP (code2)) |
1976 | code |= charsetp->code_space[(dimension - 2) * 4]; | |
beeedaad | 1977 | else |
b121a744 | 1978 | { |
b0a1e45e KH |
1979 | CHECK_NATNUM (code2); |
1980 | if (XFASTINT (code2) >= 0x100) | |
1981 | args_out_of_range (make_number (0xFF), code2); | |
1982 | code |= XFASTINT (code2); | |
b121a744 | 1983 | } |
99529c2c | 1984 | |
b0a1e45e | 1985 | if (dimension > 2) |
b121a744 KH |
1986 | { |
1987 | code <<= 8; | |
b0a1e45e KH |
1988 | if (NILP (code3)) |
1989 | code |= charsetp->code_space[(dimension - 3) * 4]; | |
b121a744 KH |
1990 | else |
1991 | { | |
b0a1e45e KH |
1992 | CHECK_NATNUM (code3); |
1993 | if (XFASTINT (code3) >= 0x100) | |
1994 | args_out_of_range (make_number (0xFF), code3); | |
1995 | code |= XFASTINT (code3); | |
1996 | } | |
1997 | ||
1998 | if (dimension > 3) | |
1999 | { | |
2000 | code <<= 8; | |
2001 | if (NILP (code4)) | |
2002 | code |= charsetp->code_space[0]; | |
2003 | else | |
2004 | { | |
2005 | CHECK_NATNUM (code4); | |
2006 | if (XFASTINT (code4) >= 0x100) | |
2007 | args_out_of_range (make_number (0xFF), code4); | |
2008 | code |= XFASTINT (code4); | |
2009 | } | |
b121a744 KH |
2010 | } |
2011 | } | |
beeedaad | 2012 | } |
859f2b3c | 2013 | } |
beeedaad | 2014 | |
b121a744 KH |
2015 | if (CHARSET_ISO_FINAL (charsetp) >= 0) |
2016 | code &= 0x7F7F7F7F; | |
2017 | c = DECODE_CHAR (charsetp, code); | |
2018 | if (c < 0) | |
2019 | error ("Invalid code(s)"); | |
3263d5a2 | 2020 | return make_number (c); |
4ed46869 KH |
2021 | } |
2022 | ||
beeedaad | 2023 | |
3263d5a2 KH |
2024 | /* Return the first charset in CHARSET_LIST that contains C. |
2025 | CHARSET_LIST is a list of charset IDs. If it is nil, use | |
2026 | Vcharset_ordered_list. */ | |
beeedaad | 2027 | |
3263d5a2 KH |
2028 | struct charset * |
2029 | char_charset (c, charset_list, code_return) | |
2030 | int c; | |
2031 | Lisp_Object charset_list; | |
2032 | unsigned *code_return; | |
2e344af3 | 2033 | { |
8a1816bb KH |
2034 | int maybe_null = 0; |
2035 | ||
3263d5a2 KH |
2036 | if (NILP (charset_list)) |
2037 | charset_list = Vcharset_ordered_list; | |
8a1816bb KH |
2038 | else |
2039 | maybe_null = 1; | |
beeedaad | 2040 | |
6c652beb | 2041 | while (CONSP (charset_list)) |
2e344af3 | 2042 | { |
3263d5a2 KH |
2043 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (charset_list))); |
2044 | unsigned code = ENCODE_CHAR (charset, c); | |
beeedaad | 2045 | |
3263d5a2 | 2046 | if (code != CHARSET_INVALID_CODE (charset)) |
beeedaad | 2047 | { |
3263d5a2 KH |
2048 | if (code_return) |
2049 | *code_return = code; | |
2050 | return charset; | |
3f62427c | 2051 | } |
3263d5a2 | 2052 | charset_list = XCDR (charset_list); |
6c652beb KH |
2053 | if (c <= MAX_UNICODE_CHAR |
2054 | && EQ (charset_list, Vcharset_non_preferred_head)) | |
2055 | return CHARSET_FROM_ID (charset_unicode); | |
3f62427c | 2056 | } |
8a1816bb KH |
2057 | return (maybe_null ? NULL |
2058 | : c <= MAX_5_BYTE_CHAR ? CHARSET_FROM_ID (charset_emacs) | |
6a9c90ec | 2059 | : CHARSET_FROM_ID (charset_eight_bit)); |
3f62427c KH |
2060 | } |
2061 | ||
2e344af3 | 2062 | |
3263d5a2 | 2063 | DEFUN ("split-char", Fsplit_char, Ssplit_char, 1, 1, 0, |
3cc67a4d | 2064 | doc: |
d0cf2d48 | 2065 | /*Return list of charset and one to four position-codes of CH. |
3cc67a4d KH |
2066 | The charset is decided by the current priority order of charsets. |
2067 | A position-code is a byte value of each dimension of the code-point of | |
d0cf2d48 | 2068 | CH in the charset. */) |
3263d5a2 KH |
2069 | (ch) |
2070 | Lisp_Object ch; | |
4ed46869 | 2071 | { |
3263d5a2 KH |
2072 | struct charset *charset; |
2073 | int c, dimension; | |
2074 | unsigned code; | |
4ed46869 KH |
2075 | Lisp_Object val; |
2076 | ||
3263d5a2 KH |
2077 | CHECK_CHARACTER (ch); |
2078 | c = XFASTINT (ch); | |
2079 | charset = CHAR_CHARSET (c); | |
2080 | if (! charset) | |
3cc67a4d | 2081 | abort (); |
3263d5a2 KH |
2082 | code = ENCODE_CHAR (charset, c); |
2083 | if (code == CHARSET_INVALID_CODE (charset)) | |
2084 | abort (); | |
2085 | dimension = CHARSET_DIMENSION (charset); | |
3cc67a4d KH |
2086 | for (val = Qnil; dimension > 0; dimension--) |
2087 | { | |
2088 | val = Fcons (make_number (code & 0xFF), val); | |
2089 | code >>= 8; | |
2090 | } | |
3263d5a2 | 2091 | return Fcons (CHARSET_NAME (charset), val); |
4ed46869 KH |
2092 | } |
2093 | ||
740f080d | 2094 | |
3263d5a2 | 2095 | DEFUN ("char-charset", Fchar_charset, Schar_charset, 1, 1, 0, |
327719ee | 2096 | doc: /* Return the charset of highest priority that contains CH. */) |
fdb82f93 | 2097 | (ch) |
4ed46869 KH |
2098 | Lisp_Object ch; |
2099 | { | |
3263d5a2 | 2100 | struct charset *charset; |
4ed46869 | 2101 | |
3263d5a2 KH |
2102 | CHECK_CHARACTER (ch); |
2103 | charset = CHAR_CHARSET (XINT (ch)); | |
2104 | return (CHARSET_NAME (charset)); | |
4ed46869 KH |
2105 | } |
2106 | ||
17e7ef1b | 2107 | |
3263d5a2 KH |
2108 | DEFUN ("charset-after", Fcharset_after, Scharset_after, 0, 1, 0, |
2109 | doc: /* | |
2110 | Return charset of a character in the current buffer at position POS. | |
2111 | If POS is nil, it defauls to the current point. | |
2112 | If POS is out of range, the value is nil. */) | |
2113 | (pos) | |
2114 | Lisp_Object pos; | |
2e344af3 | 2115 | { |
3263d5a2 KH |
2116 | Lisp_Object ch; |
2117 | struct charset *charset; | |
046b1f03 | 2118 | |
3263d5a2 KH |
2119 | ch = Fchar_after (pos); |
2120 | if (! INTEGERP (ch)) | |
2121 | return ch; | |
2122 | charset = CHAR_CHARSET (XINT (ch)); | |
2123 | return (CHARSET_NAME (charset)); | |
6ae1f27e | 2124 | } |
9036eb45 | 2125 | |
87b089ad | 2126 | |
3263d5a2 KH |
2127 | DEFUN ("iso-charset", Fiso_charset, Siso_charset, 3, 3, 0, |
2128 | doc: /* | |
2129 | Return charset of ISO's specification DIMENSION, CHARS, and FINAL-CHAR. | |
2130 | ||
2131 | ISO 2022's designation sequence (escape sequence) distinguishes charsets | |
2132 | by their DIMENSION, CHARS, and FINAL-CHAR, | |
d0cf2d48 | 2133 | whereas Emacs distinguishes them by charset symbol. |
3263d5a2 KH |
2134 | See the documentation of the function `charset-info' for the meanings of |
2135 | DIMENSION, CHARS, and FINAL-CHAR. */) | |
2136 | (dimension, chars, final_char) | |
2137 | Lisp_Object dimension, chars, final_char; | |
6ae1f27e | 2138 | { |
3263d5a2 | 2139 | int id; |
82215ce9 | 2140 | int chars_flag; |
a8a35e61 | 2141 | |
3263d5a2 | 2142 | check_iso_charset_parameter (dimension, chars, final_char); |
82215ce9 KH |
2143 | chars_flag = XFASTINT (chars) == 96; |
2144 | id = ISO_CHARSET_TABLE (XFASTINT (dimension), chars_flag, | |
3263d5a2 KH |
2145 | XFASTINT (final_char)); |
2146 | return (id >= 0 ? CHARSET_NAME (CHARSET_FROM_ID (id)) : Qnil); | |
046b1f03 RS |
2147 | } |
2148 | ||
87b089ad | 2149 | |
3263d5a2 KH |
2150 | DEFUN ("clear-charset-maps", Fclear_charset_maps, Sclear_charset_maps, |
2151 | 0, 0, 0, | |
2152 | doc: /* | |
ecca2aad KH |
2153 | Internal use only. |
2154 | Clear temporary charset mapping tables. | |
2155 | It should be called only from temacs invoked for dumping. */) | |
3263d5a2 | 2156 | () |
87b089ad | 2157 | { |
53316e55 | 2158 | int i; |
3263d5a2 KH |
2159 | struct charset *charset; |
2160 | Lisp_Object attrs; | |
87b089ad | 2161 | |
ecca2aad | 2162 | if (temp_charset_work) |
87b089ad | 2163 | { |
ecca2aad KH |
2164 | free (temp_charset_work); |
2165 | temp_charset_work = NULL; | |
2e344af3 | 2166 | } |
2e344af3 | 2167 | |
ecca2aad KH |
2168 | if (CHAR_TABLE_P (Vchar_unify_table)) |
2169 | Foptimize_char_table (Vchar_unify_table, Qnil); | |
740f080d | 2170 | |
3263d5a2 | 2171 | return Qnil; |
740f080d KH |
2172 | } |
2173 | ||
8ddf5e57 DL |
2174 | DEFUN ("charset-priority-list", Fcharset_priority_list, |
2175 | Scharset_priority_list, 0, 1, 0, | |
2176 | doc: /* Return the list of charsets ordered by priority. | |
2177 | HIGHESTP non-nil means just return the highest priority one. */) | |
2178 | (highestp) | |
2179 | Lisp_Object highestp; | |
2e344af3 | 2180 | { |
8ddf5e57 | 2181 | Lisp_Object val = Qnil, list = Vcharset_ordered_list; |
2e344af3 | 2182 | |
8ddf5e57 | 2183 | if (!NILP (highestp)) |
16fed1fc | 2184 | return CHARSET_NAME (CHARSET_FROM_ID (XINT (Fcar (list)))); |
2e344af3 | 2185 | |
8ddf5e57 | 2186 | while (!NILP (list)) |
2e344af3 | 2187 | { |
16fed1fc | 2188 | val = Fcons (CHARSET_NAME (CHARSET_FROM_ID (XINT (XCAR (list)))), val); |
8ddf5e57 | 2189 | list = XCDR (list); |
2e344af3 | 2190 | } |
8ddf5e57 | 2191 | return Fnreverse (val); |
2e344af3 KH |
2192 | } |
2193 | ||
8ddf5e57 DL |
2194 | DEFUN ("set-charset-priority", Fset_charset_priority, Sset_charset_priority, |
2195 | 1, MANY, 0, | |
2196 | doc: /* Assign higher priority to the charsets given as arguments. | |
2197 | usage: (set-charset-priority &rest charsets) */) | |
2198 | (nargs, args) | |
2199 | int nargs; | |
4ed46869 KH |
2200 | Lisp_Object *args; |
2201 | { | |
af7c60ca | 2202 | Lisp_Object new_head, old_list, arglist[2]; |
321c819c | 2203 | Lisp_Object list_2022, list_emacs_mule; |
16fed1fc | 2204 | int i, id; |
4ed46869 | 2205 | |
8ddf5e57 | 2206 | old_list = Fcopy_sequence (Vcharset_ordered_list); |
af7c60ca | 2207 | new_head = Qnil; |
8ddf5e57 | 2208 | for (i = 0; i < nargs; i++) |
4ed46869 | 2209 | { |
8ddf5e57 | 2210 | CHECK_CHARSET_GET_ID (args[i], id); |
af7c60ca KH |
2211 | if (! NILP (Fmemq (make_number (id), old_list))) |
2212 | { | |
2213 | old_list = Fdelq (make_number (id), old_list); | |
2214 | new_head = Fcons (make_number (id), new_head); | |
2215 | } | |
5729c92f | 2216 | } |
8ddf5e57 | 2217 | arglist[0] = Fnreverse (new_head); |
6a9c90ec | 2218 | arglist[1] = Vcharset_non_preferred_head = old_list; |
8ddf5e57 | 2219 | Vcharset_ordered_list = Fnconc (2, arglist); |
dbbb237d | 2220 | charset_ordered_list_tick++; |
5729c92f | 2221 | |
321c819c | 2222 | for (old_list = Vcharset_ordered_list, list_2022 = list_emacs_mule = Qnil; |
d017b41e | 2223 | CONSP (old_list); old_list = XCDR (old_list)) |
5729c92f | 2224 | { |
e77415b0 | 2225 | if (! NILP (Fmemq (XCAR (old_list), Viso_2022_charset_list))) |
321c819c KH |
2226 | list_2022 = Fcons (XCAR (old_list), list_2022); |
2227 | if (! NILP (Fmemq (XCAR (old_list), Vemacs_mule_charset_list))) | |
2228 | list_emacs_mule = Fcons (XCAR (old_list), list_emacs_mule); | |
4ed46869 | 2229 | } |
321c819c KH |
2230 | Viso_2022_charset_list = Fnreverse (list_2022); |
2231 | Vemacs_mule_charset_list = Fnreverse (list_emacs_mule); | |
4ed46869 | 2232 | |
8ddf5e57 | 2233 | return Qnil; |
4ed46869 KH |
2234 | } |
2235 | ||
d5b33309 KH |
2236 | DEFUN ("charset-id-internal", Fcharset_id_internal, Scharset_id_internal, |
2237 | 0, 1, 0, | |
2238 | doc: /* Internal use only. | |
2239 | Return charset identification number of CHARSET. */) | |
2240 | (charset) | |
2241 | Lisp_Object charset; | |
4ed46869 | 2242 | { |
d5b33309 | 2243 | int id; |
4ed46869 | 2244 | |
d5b33309 KH |
2245 | CHECK_CHARSET_GET_ID (charset, id); |
2246 | return make_number (id); | |
4ed46869 KH |
2247 | } |
2248 | ||
4ed46869 | 2249 | \f |
3263d5a2 KH |
2250 | void |
2251 | init_charset () | |
4ed46869 | 2252 | { |
c8f94403 GM |
2253 | Lisp_Object tempdir; |
2254 | tempdir = Fexpand_file_name (build_string ("charsets"), Vdata_directory); | |
2255 | if (access (SDATA (tempdir), 0) < 0) | |
2256 | { | |
2257 | dir_warning ("Error: charsets directory (%s) does not exist.\n\ | |
2258 | Emacs will not function correctly without the character map files.\n\ | |
2259 | Please check your installation!\n", | |
2260 | tempdir); | |
2261 | /* TODO should this be a fatal error? (Bug#909) */ | |
2262 | } | |
2263 | ||
2264 | Vcharset_map_path = Fcons (tempdir, Qnil); | |
4ed46869 KH |
2265 | } |
2266 | ||
4ed46869 | 2267 | |
dfcf069d | 2268 | void |
4ed46869 KH |
2269 | init_charset_once () |
2270 | { | |
2271 | int i, j, k; | |
2272 | ||
3263d5a2 KH |
2273 | for (i = 0; i < ISO_MAX_DIMENSION; i++) |
2274 | for (j = 0; j < ISO_MAX_CHARS; j++) | |
2275 | for (k = 0; k < ISO_MAX_FINAL; k++) | |
2276 | iso_charset_table[i][j][k] = -1; | |
4ed46869 | 2277 | |
60383934 | 2278 | for (i = 0; i < 256; i++) |
3263d5a2 | 2279 | emacs_mule_charset[i] = NULL; |
4ed46869 | 2280 | |
7c7dceee KH |
2281 | charset_jisx0201_roman = -1; |
2282 | charset_jisx0208_1978 = -1; | |
2283 | charset_jisx0208 = -1; | |
4ed46869 KH |
2284 | |
2285 | for (i = 0; i < 128; i++) | |
14e3d523 | 2286 | unibyte_to_multibyte_table[i] = i; |
4ed46869 | 2287 | for (; i < 256; i++) |
170e4589 | 2288 | unibyte_to_multibyte_table[i] = BYTE8_TO_CHAR (i); |
4ed46869 KH |
2289 | } |
2290 | ||
2291 | #ifdef emacs | |
2292 | ||
dfcf069d | 2293 | void |
4ed46869 KH |
2294 | syms_of_charset () |
2295 | { | |
3263d5a2 KH |
2296 | DEFSYM (Qcharsetp, "charsetp"); |
2297 | ||
2298 | DEFSYM (Qascii, "ascii"); | |
2299 | DEFSYM (Qunicode, "unicode"); | |
6c652beb | 2300 | DEFSYM (Qemacs, "emacs"); |
2fe1edd1 | 2301 | DEFSYM (Qeight_bit, "eight-bit"); |
3263d5a2 KH |
2302 | DEFSYM (Qiso_8859_1, "iso-8859-1"); |
2303 | ||
2304 | DEFSYM (Qgl, "gl"); | |
2305 | DEFSYM (Qgr, "gr"); | |
2306 | ||
3263d5a2 KH |
2307 | staticpro (&Vcharset_ordered_list); |
2308 | Vcharset_ordered_list = Qnil; | |
2309 | ||
2310 | staticpro (&Viso_2022_charset_list); | |
2311 | Viso_2022_charset_list = Qnil; | |
2312 | ||
2313 | staticpro (&Vemacs_mule_charset_list); | |
2314 | Vemacs_mule_charset_list = Qnil; | |
2315 | ||
3943ed76 KH |
2316 | /* Don't staticpro them here. It's done in syms_of_fns. */ |
2317 | QCtest = intern (":test"); | |
2318 | Qeq = intern ("eq"); | |
2319 | ||
3263d5a2 | 2320 | staticpro (&Vcharset_hash_table); |
8f924df7 KH |
2321 | { |
2322 | Lisp_Object args[2]; | |
2323 | args[0] = QCtest; | |
2324 | args[1] = Qeq; | |
2325 | Vcharset_hash_table = Fmake_hash_table (2, args); | |
2326 | } | |
3263d5a2 KH |
2327 | |
2328 | charset_table_size = 128; | |
2329 | charset_table = ((struct charset *) | |
2330 | xmalloc (sizeof (struct charset) * charset_table_size)); | |
2331 | charset_table_used = 0; | |
2332 | ||
3263d5a2 KH |
2333 | defsubr (&Scharsetp); |
2334 | defsubr (&Smap_charset_chars); | |
2335 | defsubr (&Sdefine_charset_internal); | |
2336 | defsubr (&Sdefine_charset_alias); | |
3263d5a2 KH |
2337 | defsubr (&Scharset_plist); |
2338 | defsubr (&Sset_charset_plist); | |
2339 | defsubr (&Sunify_charset); | |
3fac5a51 | 2340 | defsubr (&Sget_unused_iso_final_char); |
4ed46869 KH |
2341 | defsubr (&Sdeclare_equiv_charset); |
2342 | defsubr (&Sfind_charset_region); | |
2343 | defsubr (&Sfind_charset_string); | |
3263d5a2 KH |
2344 | defsubr (&Sdecode_char); |
2345 | defsubr (&Sencode_char); | |
4ed46869 | 2346 | defsubr (&Ssplit_char); |
3263d5a2 | 2347 | defsubr (&Smake_char); |
4ed46869 | 2348 | defsubr (&Schar_charset); |
90d7b74e | 2349 | defsubr (&Scharset_after); |
4ed46869 | 2350 | defsubr (&Siso_charset); |
3263d5a2 | 2351 | defsubr (&Sclear_charset_maps); |
8ddf5e57 DL |
2352 | defsubr (&Scharset_priority_list); |
2353 | defsubr (&Sset_charset_priority); | |
d5b33309 | 2354 | defsubr (&Scharset_id_internal); |
3263d5a2 | 2355 | |
4beef065 | 2356 | DEFVAR_LISP ("charset-map-path", &Vcharset_map_path, |
6f3122a7 | 2357 | doc: /* *List of directories to search for charset map files. */); |
4beef065 | 2358 | Vcharset_map_path = Qnil; |
4ed46869 | 2359 | |
ecca2aad KH |
2360 | DEFVAR_BOOL ("inhibit-load-charset-map", &inhibit_load_charset_map, |
2361 | doc: /* Inhibit loading of charset maps. Used when dumping Emacs. */); | |
2362 | inhibit_load_charset_map = 0; | |
2363 | ||
4ed46869 | 2364 | DEFVAR_LISP ("charset-list", &Vcharset_list, |
528623a0 | 2365 | doc: /* List of all charsets ever defined. */); |
3263d5a2 KH |
2366 | Vcharset_list = Qnil; |
2367 | ||
6a9c90ec KH |
2368 | DEFVAR_LISP ("current-iso639-language", &Vcurrent_iso639_language, |
2369 | doc: /* ISO639 language mnemonic symbol for the current language environment. | |
2370 | If the current language environment is for multiple languages (e.g. "Latin-1"), | |
2371 | the value may be a list of mnemonics. */); | |
2372 | Vcurrent_iso639_language = Qnil; | |
2373 | ||
2fe1edd1 KH |
2374 | charset_ascii |
2375 | = define_charset_internal (Qascii, 1, "\x00\x7F\x00\x00\x00\x00", | |
2376 | 0, 127, 'B', -1, 0, 1, 0, 0); | |
14e3d523 KH |
2377 | charset_iso_8859_1 |
2378 | = define_charset_internal (Qiso_8859_1, 1, "\x00\xFF\x00\x00\x00\x00", | |
2379 | 0, 255, -1, -1, -1, 1, 0, 0); | |
2fe1edd1 | 2380 | charset_unicode |
73fbf2d9 | 2381 | = define_charset_internal (Qunicode, 3, "\x00\xFF\x00\xFF\x00\x10", |
2fe1edd1 | 2382 | 0, MAX_UNICODE_CHAR, -1, 0, -1, 1, 0, 0); |
6c652beb KH |
2383 | charset_emacs |
2384 | = define_charset_internal (Qemacs, 3, "\x00\xFF\x00\xFF\x00\x3F", | |
2385 | 0, MAX_5_BYTE_CHAR, -1, 0, -1, 1, 1, 0); | |
2fe1edd1 KH |
2386 | charset_eight_bit |
2387 | = define_charset_internal (Qeight_bit, 1, "\x80\xFF\x00\x00\x00\x00", | |
880820fe | 2388 | 128, 255, -1, 0, -1, 0, 1, |
2fe1edd1 | 2389 | MAX_5_BYTE_CHAR + 1); |
4ed46869 KH |
2390 | } |
2391 | ||
2392 | #endif /* emacs */ | |
cefd8c4f KH |
2393 | |
2394 | /* arch-tag: 66a89b8d-4c28-47d3-9ca1-56f78440d69f | |
2395 | (do not change this comment) */ |