Commit | Line | Data |
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3263d5a2 | 1 | /* Basic character set support. |
73b0cd50 | 2 | Copyright (C) 2001-2011 Free Software Foundation, Inc. |
7976eda0 | 3 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
5df4f04c | 4 | 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
ce03bf76 KH |
5 | National Institute of Advanced Industrial Science and Technology (AIST) |
6 | Registration Number H14PRO021 | |
4ed46869 | 7 | |
327719ee | 8 | Copyright (C) 2003, 2004 |
3263d5a2 KH |
9 | National Institute of Advanced Industrial Science and Technology (AIST) |
10 | Registration Number H13PRO009 | |
4ed46869 | 11 | |
369314dc KH |
12 | This file is part of GNU Emacs. |
13 | ||
9ec0b715 | 14 | GNU Emacs is free software: you can redistribute it and/or modify |
369314dc | 15 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
16 | the Free Software Foundation, either version 3 of the License, or |
17 | (at your option) any later version. | |
4ed46869 | 18 | |
369314dc KH |
19 | GNU Emacs is distributed in the hope that it will be useful, |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
4ed46869 | 23 | |
369314dc | 24 | You should have received a copy of the GNU General Public License |
9ec0b715 | 25 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
4ed46869 | 26 | |
68c45bf0 | 27 | #include <config.h> |
68c45bf0 | 28 | |
4ed46869 | 29 | #include <stdio.h> |
3263d5a2 KH |
30 | #include <unistd.h> |
31 | #include <ctype.h> | |
4ed46869 | 32 | #include <sys/types.h> |
d7306fe6 | 33 | #include <setjmp.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 | /* Hash table that contains attributes of each charset. Keys are |
57 | charset symbols, and values are vectors of charset attributes. */ | |
58 | Lisp_Object Vcharset_hash_table; | |
4ed46869 | 59 | |
3263d5a2 KH |
60 | /* Table of struct charset. */ |
61 | struct charset *charset_table; | |
4ed46869 | 62 | |
3263d5a2 | 63 | static int charset_table_size; |
5af5dd92 | 64 | static int charset_table_used; |
4ed46869 | 65 | |
3263d5a2 | 66 | Lisp_Object Qcharsetp; |
4ed46869 | 67 | |
3263d5a2 KH |
68 | /* Special charset symbols. */ |
69 | Lisp_Object Qascii; | |
2fe1edd1 | 70 | Lisp_Object Qeight_bit; |
3263d5a2 KH |
71 | Lisp_Object Qiso_8859_1; |
72 | Lisp_Object Qunicode; | |
6c652beb | 73 | Lisp_Object Qemacs; |
4ed46869 | 74 | |
3263d5a2 KH |
75 | /* The corresponding charsets. */ |
76 | int charset_ascii; | |
2fe1edd1 | 77 | int charset_eight_bit; |
3263d5a2 KH |
78 | int charset_iso_8859_1; |
79 | int charset_unicode; | |
6c652beb | 80 | int charset_emacs; |
b0e3cf2b | 81 | |
7c7dceee KH |
82 | /* The other special charsets. */ |
83 | int charset_jisx0201_roman; | |
84 | int charset_jisx0208_1978; | |
85 | int charset_jisx0208; | |
d32320c4 | 86 | int charset_ksc5601; |
c1a08b4c | 87 | |
3263d5a2 KH |
88 | /* Value of charset attribute `charset-iso-plane'. */ |
89 | Lisp_Object Qgl, Qgr; | |
c1a08b4c | 90 | |
d1a04588 KH |
91 | /* Charset of unibyte characters. */ |
92 | int charset_unibyte; | |
4ed46869 | 93 | |
3263d5a2 KH |
94 | /* List of charsets ordered by the priority. */ |
95 | Lisp_Object Vcharset_ordered_list; | |
4ed46869 | 96 | |
6a9c90ec KH |
97 | /* Sub-list of Vcharset_ordered_list that contains all non-preferred |
98 | charsets. */ | |
99 | Lisp_Object Vcharset_non_preferred_head; | |
100 | ||
dbbb237d | 101 | /* Incremented everytime we change Vcharset_ordered_list. This is |
64165ae2 | 102 | unsigned short so that it fits in Lisp_Int and never matches |
dbbb237d KH |
103 | -1. */ |
104 | unsigned short charset_ordered_list_tick; | |
4ed46869 | 105 | |
3263d5a2 KH |
106 | /* List of iso-2022 charsets. */ |
107 | Lisp_Object Viso_2022_charset_list; | |
35e623fb | 108 | |
3263d5a2 KH |
109 | /* List of emacs-mule charsets. */ |
110 | Lisp_Object Vemacs_mule_charset_list; | |
111 | ||
b84ae584 | 112 | int emacs_mule_charset[256]; |
4ed46869 KH |
113 | |
114 | /* Mapping table from ISO2022's charset (specified by DIMENSION, | |
115 | CHARS, and FINAL-CHAR) to Emacs' charset. */ | |
3263d5a2 KH |
116 | int iso_charset_table[ISO_MAX_DIMENSION][ISO_MAX_CHARS][ISO_MAX_FINAL]; |
117 | ||
69f8de5b KH |
118 | #define CODE_POINT_TO_INDEX(charset, code) \ |
119 | ((charset)->code_linear_p \ | |
120 | ? (code) - (charset)->min_code \ | |
121 | : (((charset)->code_space_mask[(code) >> 24] & 0x8) \ | |
122 | && ((charset)->code_space_mask[((code) >> 16) & 0xFF] & 0x4) \ | |
123 | && ((charset)->code_space_mask[((code) >> 8) & 0xFF] & 0x2) \ | |
124 | && ((charset)->code_space_mask[(code) & 0xFF] & 0x1)) \ | |
125 | ? (((((code) >> 24) - (charset)->code_space[12]) \ | |
126 | * (charset)->code_space[11]) \ | |
127 | + (((((code) >> 16) & 0xFF) - (charset)->code_space[8]) \ | |
128 | * (charset)->code_space[7]) \ | |
129 | + (((((code) >> 8) & 0xFF) - (charset)->code_space[4]) \ | |
130 | * (charset)->code_space[3]) \ | |
820ee249 KH |
131 | + (((code) & 0xFF) - (charset)->code_space[0]) \ |
132 | - ((charset)->char_index_offset)) \ | |
3263d5a2 KH |
133 | : -1) |
134 | ||
135 | ||
136 | /* Convert the character index IDX to code-point CODE for CHARSET. | |
137 | It is assumed that IDX is in a valid range. */ | |
138 | ||
820ee249 KH |
139 | #define INDEX_TO_CODE_POINT(charset, idx) \ |
140 | ((charset)->code_linear_p \ | |
141 | ? (idx) + (charset)->min_code \ | |
142 | : (idx += (charset)->char_index_offset, \ | |
143 | (((charset)->code_space[0] + (idx) % (charset)->code_space[2]) \ | |
144 | | (((charset)->code_space[4] \ | |
145 | + ((idx) / (charset)->code_space[3] % (charset)->code_space[6])) \ | |
146 | << 8) \ | |
147 | | (((charset)->code_space[8] \ | |
148 | + ((idx) / (charset)->code_space[7] % (charset)->code_space[10])) \ | |
149 | << 16) \ | |
150 | | (((charset)->code_space[12] + ((idx) / (charset)->code_space[11])) \ | |
151 | << 24)))) | |
4cf9710d | 152 | |
ecca2aad KH |
153 | /* Structure to hold mapping tables for a charset. Used by temacs |
154 | invoked for dumping. */ | |
8a73a704 | 155 | |
ecca2aad KH |
156 | static struct |
157 | { | |
158 | /* The current charset for which the following tables are setup. */ | |
159 | struct charset *current; | |
160 | ||
161 | /* 1 iff the following table is used for encoder. */ | |
162 | short for_encoder; | |
163 | ||
164 | /* When the following table is used for encoding, mininum and | |
165 | maxinum character of the current charset. */ | |
166 | int min_char, max_char; | |
167 | ||
168 | /* A Unicode character correspoinding to the code indice 0 (i.e. the | |
169 | minimum code-point) of the current charset, or -1 if the code | |
170 | indice 0 is not a Unicode character. This is checked when | |
171 | table.encoder[CHAR] is zero. */ | |
172 | int zero_index_char; | |
173 | ||
174 | union { | |
175 | /* Table mapping code-indices (not code-points) of the current | |
176 | charset to Unicode characters. If decoder[CHAR] is -1, CHAR | |
177 | doesn't belong to the current charset. */ | |
178 | int decoder[0x10000]; | |
179 | /* Table mapping Unicode characters to code-indices of the current | |
180 | charset. The first 0x10000 elements are for BMP (0..0xFFFF), | |
181 | and the last 0x10000 are for SMP (0x10000..0x1FFFF) or SIP | |
182 | (0x20000..0x2FFFF). Note that there is no charset map that | |
183 | uses both SMP and SIP. */ | |
184 | unsigned short encoder[0x20000]; | |
185 | } table; | |
186 | } *temp_charset_work; | |
187 | ||
188 | #define SET_TEMP_CHARSET_WORK_ENCODER(C, CODE) \ | |
189 | do { \ | |
190 | if ((CODE) == 0) \ | |
191 | temp_charset_work->zero_index_char = (C); \ | |
192 | else if ((C) < 0x20000) \ | |
193 | temp_charset_work->table.encoder[(C)] = (CODE); \ | |
194 | else \ | |
195 | temp_charset_work->table.encoder[(C) - 0x10000] = (CODE); \ | |
196 | } while (0) | |
197 | ||
198 | #define GET_TEMP_CHARSET_WORK_ENCODER(C) \ | |
199 | ((C) == temp_charset_work->zero_index_char ? 0 \ | |
200 | : (C) < 0x20000 ? (temp_charset_work->table.encoder[(C)] \ | |
201 | ? (int) temp_charset_work->table.encoder[(C)] : -1) \ | |
202 | : temp_charset_work->table.encoder[(C) - 0x10000] \ | |
203 | ? temp_charset_work->table.encoder[(C) - 0x10000] : -1) | |
204 | ||
205 | #define SET_TEMP_CHARSET_WORK_DECODER(C, CODE) \ | |
206 | (temp_charset_work->table.decoder[(CODE)] = (C)) | |
207 | ||
208 | #define GET_TEMP_CHARSET_WORK_DECODER(CODE) \ | |
209 | (temp_charset_work->table.decoder[(CODE)]) | |
046b1f03 | 210 | \f |
93bcb785 | 211 | |
e9ce014c KH |
212 | /* Set to 1 to warn that a charset map is loaded and thus a buffer |
213 | text and a string data may be relocated. */ | |
3263d5a2 | 214 | int charset_map_loaded; |
4ed46869 | 215 | |
e9ce014c | 216 | struct charset_map_entries |
4ed46869 | 217 | { |
e9ce014c KH |
218 | struct { |
219 | unsigned from, to; | |
220 | int c; | |
221 | } entry[0x10000]; | |
222 | struct charset_map_entries *next; | |
223 | }; | |
224 | ||
ecca2aad KH |
225 | /* Load the mapping information of CHARSET from ENTRIES for |
226 | initializing (CONTROL_FLAG == 0), decoding (CONTROL_FLAG == 1), and | |
227 | encoding (CONTROL_FLAG == 2). | |
228 | ||
229 | If CONTROL_FLAG is 0, setup CHARSET->min_char, CHARSET->max_char, | |
230 | and CHARSET->fast_map. | |
231 | ||
232 | If CONTROL_FLAG is 1, setup the following tables according to | |
233 | CHARSET->method and inhibit_load_charset_map. | |
4cf9710d | 234 | |
ecca2aad KH |
235 | CHARSET->method | inhibit_lcm == 0 | inhibit_lcm == 1 |
236 | ----------------------+--------------------+--------------------------- | |
237 | CHARSET_METHOD_MAP | CHARSET->decoder | temp_charset_work->decoder | |
238 | ----------------------+--------------------+--------------------------- | |
239 | CHARSET_METHOD_OFFSET | Vchar_unify_table | temp_charset_work->decoder | |
8a73a704 | 240 | |
ecca2aad | 241 | If CONTROL_FLAG is 2, setup the following tables. |
93bcb785 | 242 | |
ecca2aad KH |
243 | CHARSET->method | inhibit_lcm == 0 | inhibit_lcm == 1 |
244 | ----------------------+--------------------+--------------------------- | |
245 | CHARSET_METHOD_MAP | CHARSET->encoder | temp_charset_work->encoder | |
246 | ----------------------+--------------------+-------------------------- | |
247 | CHARSET_METHOD_OFFSET | CHARSET->deunifier | temp_charset_work->encoder | |
248 | */ | |
4ed46869 | 249 | |
3263d5a2 | 250 | static void |
971de7fb | 251 | load_charset_map (struct charset *charset, struct charset_map_entries *entries, int n_entries, int control_flag) |
4ed46869 | 252 | { |
3263d5a2 | 253 | Lisp_Object vec, table; |
3263d5a2 KH |
254 | unsigned max_code = CHARSET_MAX_CODE (charset); |
255 | int ascii_compatible_p = charset->ascii_compatible_p; | |
256 | int min_char, max_char, nonascii_min_char; | |
3263d5a2 | 257 | int i; |
3263d5a2 | 258 | unsigned char *fast_map = charset->fast_map; |
99529c2c | 259 | |
e9ce014c KH |
260 | if (n_entries <= 0) |
261 | return; | |
262 | ||
ecca2aad | 263 | if (control_flag) |
8ac5a9cc | 264 | { |
ecca2aad KH |
265 | if (! inhibit_load_charset_map) |
266 | { | |
267 | if (control_flag == 1) | |
268 | { | |
269 | if (charset->method == CHARSET_METHOD_MAP) | |
270 | { | |
271 | int n = CODE_POINT_TO_INDEX (charset, max_code) + 1; | |
6662e69b | 272 | |
ecca2aad KH |
273 | vec = CHARSET_DECODER (charset) |
274 | = Fmake_vector (make_number (n), make_number (-1)); | |
275 | } | |
276 | else | |
277 | { | |
278 | char_table_set_range (Vchar_unify_table, | |
279 | charset->min_char, charset->max_char, | |
280 | Qnil); | |
281 | } | |
282 | } | |
283 | else | |
284 | { | |
285 | table = Fmake_char_table (Qnil, Qnil); | |
286 | if (charset->method == CHARSET_METHOD_MAP) | |
287 | CHARSET_ENCODER (charset) = table; | |
288 | else | |
289 | CHARSET_DEUNIFIER (charset) = table; | |
290 | } | |
291 | } | |
292 | else | |
293 | { | |
294 | if (! temp_charset_work) | |
546961a9 | 295 | temp_charset_work = xmalloc (sizeof (*temp_charset_work)); |
ecca2aad KH |
296 | if (control_flag == 1) |
297 | { | |
298 | memset (temp_charset_work->table.decoder, -1, | |
299 | sizeof (int) * 0x10000); | |
ecca2aad KH |
300 | } |
301 | else | |
302 | { | |
303 | memset (temp_charset_work->table.encoder, 0, | |
304 | sizeof (unsigned short) * 0x20000); | |
305 | temp_charset_work->zero_index_char = -1; | |
306 | } | |
307 | temp_charset_work->current = charset; | |
308 | temp_charset_work->for_encoder = (control_flag == 2); | |
309 | control_flag += 2; | |
310 | } | |
3263d5a2 | 311 | charset_map_loaded = 1; |
2e344af3 | 312 | } |
6662e69b | 313 | |
e9ce014c | 314 | min_char = max_char = entries->entry[0].c; |
3263d5a2 | 315 | nonascii_min_char = MAX_CHAR; |
e9ce014c | 316 | for (i = 0; i < n_entries; i++) |
2e344af3 | 317 | { |
e9ce014c | 318 | unsigned from, to; |
3b4f4446 KH |
319 | int from_index, to_index; |
320 | int from_c, to_c; | |
e9ce014c | 321 | int idx = i % 0x10000; |
3263d5a2 | 322 | |
e9ce014c KH |
323 | if (i > 0 && idx == 0) |
324 | entries = entries->next; | |
325 | from = entries->entry[idx].from; | |
326 | to = entries->entry[idx].to; | |
3b4f4446 KH |
327 | from_c = entries->entry[idx].c; |
328 | from_index = CODE_POINT_TO_INDEX (charset, from); | |
329 | if (from == to) | |
6662e69b | 330 | { |
3b4f4446 KH |
331 | to_index = from_index; |
332 | to_c = from_c; | |
6662e69b | 333 | } |
3b4f4446 | 334 | else |
6662e69b | 335 | { |
3b4f4446 KH |
336 | to_index = CODE_POINT_TO_INDEX (charset, to); |
337 | to_c = from_c + (to_index - from_index); | |
6662e69b | 338 | } |
3b4f4446 KH |
339 | if (from_index < 0 || to_index < 0) |
340 | continue; | |
3263d5a2 | 341 | |
ecca2aad KH |
342 | if (to_c > max_char) |
343 | max_char = to_c; | |
344 | else if (from_c < min_char) | |
345 | min_char = from_c; | |
6662e69b | 346 | |
ecca2aad KH |
347 | if (control_flag == 1) |
348 | { | |
349 | if (charset->method == CHARSET_METHOD_MAP) | |
350 | for (; from_index <= to_index; from_index++, from_c++) | |
351 | ASET (vec, from_index, make_number (from_c)); | |
352 | else | |
353 | for (; from_index <= to_index; from_index++, from_c++) | |
354 | CHAR_TABLE_SET (Vchar_unify_table, | |
355 | CHARSET_CODE_OFFSET (charset) + from_index, | |
356 | make_number (from_c)); | |
357 | } | |
358 | else if (control_flag == 2) | |
359 | { | |
360 | if (charset->method == CHARSET_METHOD_MAP | |
361 | && CHARSET_COMPACT_CODES_P (charset)) | |
362 | for (; from_index <= to_index; from_index++, from_c++) | |
363 | { | |
364 | unsigned code = INDEX_TO_CODE_POINT (charset, from_index); | |
365 | ||
366 | if (NILP (CHAR_TABLE_REF (table, from_c))) | |
367 | CHAR_TABLE_SET (table, from_c, make_number (code)); | |
368 | } | |
369 | else | |
370 | for (; from_index <= to_index; from_index++, from_c++) | |
371 | { | |
372 | if (NILP (CHAR_TABLE_REF (table, from_c))) | |
373 | CHAR_TABLE_SET (table, from_c, make_number (from_index)); | |
374 | } | |
375 | } | |
376 | else if (control_flag == 3) | |
377 | for (; from_index <= to_index; from_index++, from_c++) | |
378 | SET_TEMP_CHARSET_WORK_DECODER (from_c, from_index); | |
379 | else if (control_flag == 4) | |
380 | for (; from_index <= to_index; from_index++, from_c++) | |
381 | SET_TEMP_CHARSET_WORK_ENCODER (from_c, from_index); | |
382 | else /* control_flag == 0 */ | |
383 | { | |
3b4f4446 KH |
384 | if (ascii_compatible_p) |
385 | { | |
386 | if (! ASCII_BYTE_P (from_c)) | |
387 | { | |
388 | if (from_c < nonascii_min_char) | |
389 | nonascii_min_char = from_c; | |
390 | } | |
391 | else if (! ASCII_BYTE_P (to_c)) | |
392 | { | |
393 | nonascii_min_char = 0x80; | |
394 | } | |
395 | } | |
177c0ea7 | 396 | |
ecca2aad KH |
397 | for (; from_c <= to_c; from_c++) |
398 | CHARSET_FAST_MAP_SET (from_c, fast_map); | |
2e344af3 | 399 | } |
8ac5a9cc | 400 | } |
3263d5a2 | 401 | |
ecca2aad | 402 | if (control_flag == 0) |
4ed46869 | 403 | { |
3263d5a2 KH |
404 | CHARSET_MIN_CHAR (charset) = (ascii_compatible_p |
405 | ? nonascii_min_char : min_char); | |
406 | CHARSET_MAX_CHAR (charset) = max_char; | |
4ed46869 | 407 | } |
ecca2aad KH |
408 | else if (control_flag == 4) |
409 | { | |
410 | temp_charset_work->min_char = min_char; | |
411 | temp_charset_work->max_char = max_char; | |
412 | } | |
4ed46869 KH |
413 | } |
414 | ||
12bcae05 | 415 | |
3263d5a2 | 416 | /* Read a hexadecimal number (preceded by "0x") from the file FP while |
3b59c351 | 417 | paying attention to comment character '#'. */ |
12bcae05 | 418 | |
3263d5a2 | 419 | static INLINE unsigned |
971de7fb | 420 | read_hex (FILE *fp, int *eof) |
12bcae05 | 421 | { |
3263d5a2 KH |
422 | int c; |
423 | unsigned n; | |
12bcae05 | 424 | |
3263d5a2 KH |
425 | while ((c = getc (fp)) != EOF) |
426 | { | |
69f8de5b | 427 | if (c == '#') |
3263d5a2 KH |
428 | { |
429 | while ((c = getc (fp)) != EOF && c != '\n'); | |
430 | } | |
431 | else if (c == '0') | |
432 | { | |
433 | if ((c = getc (fp)) == EOF || c == 'x') | |
434 | break; | |
435 | } | |
8f924df7 | 436 | } |
3263d5a2 KH |
437 | if (c == EOF) |
438 | { | |
439 | *eof = 1; | |
440 | return 0; | |
441 | } | |
442 | *eof = 0; | |
443 | n = 0; | |
444 | if (c == 'x') | |
445 | while ((c = getc (fp)) != EOF && isxdigit (c)) | |
446 | n = ((n << 4) | |
447 | | (c <= '9' ? c - '0' : c <= 'F' ? c - 'A' + 10 : c - 'a' + 10)); | |
448 | else | |
449 | while ((c = getc (fp)) != EOF && isdigit (c)) | |
450 | n = (n * 10) + c - '0'; | |
e9ce014c KH |
451 | if (c != EOF) |
452 | ungetc (c, fp); | |
3263d5a2 KH |
453 | return n; |
454 | } | |
12bcae05 | 455 | |
3263d5a2 | 456 | /* Return a mapping vector for CHARSET loaded from MAPFILE. |
e9ce014c KH |
457 | Each line of MAPFILE has this form |
458 | 0xAAAA 0xCCCC | |
459 | where 0xAAAA is a code-point and 0xCCCC is the corresponding | |
460 | character code, or this form | |
461 | 0xAAAA-0xBBBB 0xCCCC | |
462 | where 0xAAAA and 0xBBBB are code-points specifying a range, and | |
463 | 0xCCCC is the first character code of the range. | |
4ed46869 | 464 | |
3263d5a2 KH |
465 | The returned vector has this form: |
466 | [ CODE1 CHAR1 CODE2 CHAR2 .... ] | |
e9ce014c | 467 | where CODE1 is a code-point or a cons of code-points specifying a |
dde2559c KH |
468 | range. |
469 | ||
18a10a21 JB |
470 | Note that this function uses `openp' to open MAPFILE but ignores |
471 | `file-name-handler-alist' to avoid running any Lisp code. */ | |
4ed46869 | 472 | |
e9ce014c | 473 | static void |
971de7fb | 474 | load_charset_map_from_file (struct charset *charset, Lisp_Object mapfile, int control_flag) |
4ed46869 | 475 | { |
e9ce014c KH |
476 | unsigned min_code = CHARSET_MIN_CODE (charset); |
477 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
3263d5a2 KH |
478 | int fd; |
479 | FILE *fp; | |
3263d5a2 KH |
480 | int eof; |
481 | Lisp_Object suffixes; | |
e9ce014c | 482 | struct charset_map_entries *head, *entries; |
a2f3eb19 CY |
483 | int n_entries, count; |
484 | USE_SAFE_ALLOCA; | |
4ed46869 | 485 | |
3263d5a2 KH |
486 | suffixes = Fcons (build_string (".map"), |
487 | Fcons (build_string (".TXT"), Qnil)); | |
4ed46869 | 488 | |
a2f3eb19 | 489 | count = SPECPDL_INDEX (); |
dde2559c | 490 | specbind (Qfile_name_handler_alist, Qnil); |
4beef065 | 491 | fd = openp (Vcharset_map_path, mapfile, suffixes, NULL, Qnil); |
dde2559c | 492 | unbind_to (count, Qnil); |
3263d5a2 KH |
493 | if (fd < 0 |
494 | || ! (fp = fdopen (fd, "r"))) | |
8458d4c1 | 495 | error ("Failure in loading charset map: %S", SDATA (mapfile)); |
4ed46869 | 496 | |
a2f3eb19 CY |
497 | /* Use SAFE_ALLOCA instead of alloca, as `charset_map_entries' is |
498 | large (larger than MAX_ALLOCA). */ | |
499 | SAFE_ALLOCA (head, struct charset_map_entries *, | |
500 | sizeof (struct charset_map_entries)); | |
501 | entries = head; | |
72af86bd | 502 | memset (entries, 0, sizeof (struct charset_map_entries)); |
a2f3eb19 | 503 | |
e9ce014c | 504 | n_entries = 0; |
3263d5a2 KH |
505 | eof = 0; |
506 | while (1) | |
507 | { | |
e9ce014c KH |
508 | unsigned from, to; |
509 | int c; | |
510 | int idx; | |
4ed46869 | 511 | |
e9ce014c | 512 | from = read_hex (fp, &eof); |
3263d5a2 KH |
513 | if (eof) |
514 | break; | |
e9ce014c KH |
515 | if (getc (fp) == '-') |
516 | to = read_hex (fp, &eof); | |
517 | else | |
518 | to = from; | |
519 | c = (int) read_hex (fp, &eof); | |
ac4137cc | 520 | |
e9ce014c KH |
521 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
522 | continue; | |
ac4137cc | 523 | |
e9ce014c | 524 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
3263d5a2 | 525 | { |
a2f3eb19 CY |
526 | SAFE_ALLOCA (entries->next, struct charset_map_entries *, |
527 | sizeof (struct charset_map_entries)); | |
e9ce014c | 528 | entries = entries->next; |
72af86bd | 529 | memset (entries, 0, sizeof (struct charset_map_entries)); |
3263d5a2 | 530 | } |
e9ce014c KH |
531 | idx = n_entries % 0x10000; |
532 | entries->entry[idx].from = from; | |
533 | entries->entry[idx].to = to; | |
534 | entries->entry[idx].c = c; | |
535 | n_entries++; | |
3263d5a2 KH |
536 | } |
537 | fclose (fp); | |
177c0ea7 | 538 | |
e9ce014c | 539 | load_charset_map (charset, head, n_entries, control_flag); |
a2f3eb19 | 540 | SAFE_FREE (); |
4ed46869 KH |
541 | } |
542 | ||
e9ce014c | 543 | static void |
971de7fb | 544 | load_charset_map_from_vector (struct charset *charset, Lisp_Object vec, int control_flag) |
23d2a7f1 | 545 | { |
e9ce014c KH |
546 | unsigned min_code = CHARSET_MIN_CODE (charset); |
547 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
548 | struct charset_map_entries *head, *entries; | |
549 | int n_entries; | |
550 | int len = ASIZE (vec); | |
551 | int i; | |
a2f3eb19 | 552 | USE_SAFE_ALLOCA; |
23d2a7f1 | 553 | |
e9ce014c | 554 | if (len % 2 == 1) |
3263d5a2 | 555 | { |
e9ce014c KH |
556 | add_to_log ("Failure in loading charset map: %V", vec, Qnil); |
557 | return; | |
3263d5a2 | 558 | } |
35e623fb | 559 | |
a2f3eb19 CY |
560 | /* Use SAFE_ALLOCA instead of alloca, as `charset_map_entries' is |
561 | large (larger than MAX_ALLOCA). */ | |
562 | SAFE_ALLOCA (head, struct charset_map_entries *, | |
563 | sizeof (struct charset_map_entries)); | |
564 | entries = head; | |
72af86bd | 565 | memset (entries, 0, sizeof (struct charset_map_entries)); |
a2f3eb19 | 566 | |
e9ce014c KH |
567 | n_entries = 0; |
568 | for (i = 0; i < len; i += 2) | |
35e623fb | 569 | { |
e9ce014c KH |
570 | Lisp_Object val, val2; |
571 | unsigned from, to; | |
572 | int c; | |
573 | int idx; | |
d2665018 | 574 | |
e9ce014c KH |
575 | val = AREF (vec, i); |
576 | if (CONSP (val)) | |
bbf12bb3 | 577 | { |
e9ce014c KH |
578 | val2 = XCDR (val); |
579 | val = XCAR (val); | |
580 | CHECK_NATNUM (val); | |
581 | CHECK_NATNUM (val2); | |
582 | from = XFASTINT (val); | |
583 | to = XFASTINT (val2); | |
bbf12bb3 | 584 | } |
e9ce014c | 585 | else |
bbf12bb3 | 586 | { |
e9ce014c KH |
587 | CHECK_NATNUM (val); |
588 | from = to = XFASTINT (val); | |
bbf12bb3 | 589 | } |
e9ce014c KH |
590 | val = AREF (vec, i + 1); |
591 | CHECK_NATNUM (val); | |
592 | c = XFASTINT (val); | |
76d7b829 | 593 | |
e9ce014c KH |
594 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
595 | continue; | |
76d7b829 | 596 | |
dcc694d7 | 597 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
e9ce014c | 598 | { |
a2f3eb19 CY |
599 | SAFE_ALLOCA (entries->next, struct charset_map_entries *, |
600 | sizeof (struct charset_map_entries)); | |
e9ce014c | 601 | entries = entries->next; |
72af86bd | 602 | memset (entries, 0, sizeof (struct charset_map_entries)); |
e9ce014c KH |
603 | } |
604 | idx = n_entries % 0x10000; | |
605 | entries->entry[idx].from = from; | |
606 | entries->entry[idx].to = to; | |
607 | entries->entry[idx].c = c; | |
608 | n_entries++; | |
609 | } | |
76d7b829 | 610 | |
e9ce014c | 611 | load_charset_map (charset, head, n_entries, control_flag); |
a2f3eb19 | 612 | SAFE_FREE (); |
ac4137cc KH |
613 | } |
614 | ||
ecca2aad KH |
615 | |
616 | /* Load a mapping table for CHARSET. CONTROL-FLAG tells what kind of | |
617 | map it is (see the comment of load_charset_map for the detail). */ | |
618 | ||
3263d5a2 | 619 | static void |
971de7fb | 620 | load_charset (struct charset *charset, int control_flag) |
76d7b829 | 621 | { |
ecca2aad | 622 | Lisp_Object map; |
76d7b829 | 623 | |
ecca2aad KH |
624 | if (inhibit_load_charset_map |
625 | && temp_charset_work | |
626 | && charset == temp_charset_work->current | |
56f00ed2 | 627 | && ((control_flag == 2) == temp_charset_work->for_encoder)) |
ecca2aad KH |
628 | return; |
629 | ||
630 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) | |
631 | map = CHARSET_MAP (charset); | |
632 | else if (CHARSET_UNIFIED_P (charset)) | |
633 | map = CHARSET_UNIFY_MAP (charset); | |
634 | if (STRINGP (map)) | |
635 | load_charset_map_from_file (charset, map, control_flag); | |
636 | else | |
637 | load_charset_map_from_vector (charset, map, control_flag); | |
4ed46869 | 638 | } |
76d7b829 | 639 | |
3263d5a2 KH |
640 | |
641 | DEFUN ("charsetp", Fcharsetp, Scharsetp, 1, 1, 0, | |
642 | doc: /* Return non-nil if and only if OBJECT is a charset.*/) | |
5842a27b | 643 | (Lisp_Object object) |
23d2a7f1 | 644 | { |
3263d5a2 | 645 | return (CHARSETP (object) ? Qt : Qnil); |
76d7b829 KH |
646 | } |
647 | ||
4ed46869 | 648 | |
f57e2426 J |
649 | void map_charset_for_dump (void (*c_function) (Lisp_Object, Lisp_Object), |
650 | Lisp_Object function, Lisp_Object arg, | |
651 | unsigned from, unsigned to); | |
ecca2aad KH |
652 | |
653 | void | |
971de7fb | 654 | map_charset_for_dump (void (*c_function) (Lisp_Object, Lisp_Object), Lisp_Object function, Lisp_Object arg, unsigned int from, unsigned int to) |
ecca2aad KH |
655 | { |
656 | int from_idx = CODE_POINT_TO_INDEX (temp_charset_work->current, from); | |
657 | int to_idx = CODE_POINT_TO_INDEX (temp_charset_work->current, to); | |
658 | Lisp_Object range; | |
659 | int c, stop; | |
660 | struct gcpro gcpro1; | |
661 | ||
662 | range = Fcons (Qnil, Qnil); | |
663 | GCPRO1 (range); | |
664 | ||
665 | c = temp_charset_work->min_char; | |
666 | stop = (temp_charset_work->max_char < 0x20000 | |
667 | ? temp_charset_work->max_char : 0xFFFF); | |
51b59d79 | 668 | |
ecca2aad KH |
669 | while (1) |
670 | { | |
671 | int index = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
672 | ||
673 | if (index >= from_idx && index <= to_idx) | |
674 | { | |
675 | if (NILP (XCAR (range))) | |
676 | XSETCAR (range, make_number (c)); | |
677 | } | |
678 | else if (! NILP (XCAR (range))) | |
679 | { | |
680 | XSETCDR (range, make_number (c - 1)); | |
681 | if (c_function) | |
682 | (*c_function) (arg, range); | |
683 | else | |
684 | call2 (function, range, arg); | |
685 | XSETCAR (range, Qnil); | |
686 | } | |
687 | if (c == stop) | |
688 | { | |
689 | if (c == temp_charset_work->max_char) | |
690 | { | |
691 | if (! NILP (XCAR (range))) | |
692 | { | |
693 | XSETCDR (range, make_number (c)); | |
694 | if (c_function) | |
695 | (*c_function) (arg, range); | |
696 | else | |
697 | call2 (function, range, arg); | |
698 | } | |
699 | break; | |
700 | } | |
701 | c = 0x1FFFF; | |
702 | stop = temp_charset_work->max_char; | |
703 | } | |
704 | c++; | |
705 | } | |
c542407d | 706 | UNGCPRO; |
ecca2aad KH |
707 | } |
708 | ||
4ed46869 | 709 | void |
6f704c76 DN |
710 | map_charset_chars (void (*c_function)(Lisp_Object, Lisp_Object), Lisp_Object function, |
711 | Lisp_Object arg, struct charset *charset, unsigned from, unsigned to) | |
4ed46869 | 712 | { |
3263d5a2 | 713 | Lisp_Object range; |
374c5cfd | 714 | int partial; |
3263d5a2 | 715 | |
374c5cfd KH |
716 | partial = (from > CHARSET_MIN_CODE (charset) |
717 | || to < CHARSET_MAX_CODE (charset)); | |
718 | ||
3263d5a2 | 719 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_OFFSET) |
4ed46869 | 720 | { |
374c5cfd KH |
721 | int from_idx = CODE_POINT_TO_INDEX (charset, from); |
722 | int to_idx = CODE_POINT_TO_INDEX (charset, to); | |
723 | int from_c = from_idx + CHARSET_CODE_OFFSET (charset); | |
724 | int to_c = to_idx + CHARSET_CODE_OFFSET (charset); | |
725 | ||
ecca2aad KH |
726 | if (CHARSET_UNIFIED_P (charset)) |
727 | { | |
728 | if (! CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
729 | load_charset (charset, 2); | |
730 | if (CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
731 | map_char_table_for_charset (c_function, function, | |
732 | CHARSET_DEUNIFIER (charset), arg, | |
733 | partial ? charset : NULL, from, to); | |
734 | else | |
735 | map_charset_for_dump (c_function, function, arg, from, to); | |
736 | } | |
737 | ||
374c5cfd | 738 | range = Fcons (make_number (from_c), make_number (to_c)); |
3263d5a2 | 739 | if (NILP (function)) |
5af5dd92 | 740 | (*c_function) (arg, range); |
3263d5a2 KH |
741 | else |
742 | call2 (function, range, arg); | |
c83ef371 | 743 | } |
3263d5a2 KH |
744 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) |
745 | { | |
746 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
ecca2aad KH |
747 | load_charset (charset, 2); |
748 | if (CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
749 | map_char_table_for_charset (c_function, function, | |
750 | CHARSET_ENCODER (charset), arg, | |
751 | partial ? charset : NULL, from, to); | |
752 | else | |
753 | map_charset_for_dump (c_function, function, arg, from, to); | |
3263d5a2 | 754 | } |
374c5cfd | 755 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_SUBSET) |
4ed46869 | 756 | { |
374c5cfd KH |
757 | Lisp_Object subset_info; |
758 | int offset; | |
759 | ||
760 | subset_info = CHARSET_SUBSET (charset); | |
761 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
762 | offset = XINT (AREF (subset_info, 3)); | |
763 | from -= offset; | |
764 | if (from < XFASTINT (AREF (subset_info, 1))) | |
765 | from = XFASTINT (AREF (subset_info, 1)); | |
766 | to -= offset; | |
767 | if (to > XFASTINT (AREF (subset_info, 2))) | |
768 | to = XFASTINT (AREF (subset_info, 2)); | |
769 | map_charset_chars (c_function, function, arg, charset, from, to); | |
4ed46869 | 770 | } |
374c5cfd KH |
771 | else /* i.e. CHARSET_METHOD_SUPERSET */ |
772 | { | |
773 | Lisp_Object parents; | |
4ed46869 | 774 | |
374c5cfd KH |
775 | for (parents = CHARSET_SUPERSET (charset); CONSP (parents); |
776 | parents = XCDR (parents)) | |
bbf12bb3 | 777 | { |
374c5cfd KH |
778 | int offset; |
779 | unsigned this_from, this_to; | |
780 | ||
781 | charset = CHARSET_FROM_ID (XFASTINT (XCAR (XCAR (parents)))); | |
782 | offset = XINT (XCDR (XCAR (parents))); | |
12b55765 KH |
783 | this_from = from > offset ? from - offset : 0; |
784 | this_to = to > offset ? to - offset : 0; | |
374c5cfd KH |
785 | if (this_from < CHARSET_MIN_CODE (charset)) |
786 | this_from = CHARSET_MIN_CODE (charset); | |
787 | if (this_to > CHARSET_MAX_CODE (charset)) | |
788 | this_to = CHARSET_MAX_CODE (charset); | |
111daccf KH |
789 | map_charset_chars (c_function, function, arg, charset, |
790 | this_from, this_to); | |
bbf12bb3 | 791 | } |
35e623fb | 792 | } |
4ed46869 KH |
793 | } |
794 | ||
374c5cfd | 795 | DEFUN ("map-charset-chars", Fmap_charset_chars, Smap_charset_chars, 2, 5, 0, |
04c2f2c5 | 796 | doc: /* Call FUNCTION for all characters in CHARSET. |
374c5cfd | 797 | FUNCTION is called with an argument RANGE and the optional 3rd |
3263d5a2 | 798 | argument ARG. |
4ed46869 | 799 | |
374c5cfd KH |
800 | RANGE is a cons (FROM . TO), where FROM and TO indicate a range of |
801 | characters contained in CHARSET. | |
4ed46869 | 802 | |
374c5cfd | 803 | The optional 4th and 5th arguments FROM-CODE and TO-CODE specify the |
72d51285 | 804 | range of code points (in CHARSET) of target characters. */) |
5842a27b | 805 | (Lisp_Object function, Lisp_Object charset, Lisp_Object arg, Lisp_Object from_code, Lisp_Object to_code) |
4ed46869 | 806 | { |
374c5cfd | 807 | struct charset *cs; |
16fed1fc | 808 | unsigned from, to; |
4ed46869 | 809 | |
374c5cfd KH |
810 | CHECK_CHARSET_GET_CHARSET (charset, cs); |
811 | if (NILP (from_code)) | |
16fed1fc | 812 | from = CHARSET_MIN_CODE (cs); |
970b7474 | 813 | else |
4ed46869 | 814 | { |
970b7474 KH |
815 | CHECK_NATNUM (from_code); |
816 | from = XINT (from_code); | |
817 | if (from < CHARSET_MIN_CODE (cs)) | |
818 | from = CHARSET_MIN_CODE (cs); | |
4ed46869 | 819 | } |
374c5cfd | 820 | if (NILP (to_code)) |
970b7474 | 821 | to = CHARSET_MAX_CODE (cs); |
4ed46869 KH |
822 | else |
823 | { | |
970b7474 KH |
824 | CHECK_NATNUM (to_code); |
825 | to = XINT (to_code); | |
826 | if (to > CHARSET_MAX_CODE (cs)) | |
827 | to = CHARSET_MAX_CODE (cs); | |
4ed46869 | 828 | } |
16fed1fc | 829 | map_charset_chars (NULL, function, arg, cs, from, to); |
3263d5a2 | 830 | return Qnil; |
35e623fb | 831 | } |
4ed46869 | 832 | |
4ed46869 | 833 | |
3263d5a2 KH |
834 | /* Define a charset according to the arguments. The Nth argument is |
835 | the Nth attribute of the charset (the last attribute `charset-id' | |
836 | is not included). See the docstring of `define-charset' for the | |
837 | detail. */ | |
4ed46869 | 838 | |
3263d5a2 KH |
839 | DEFUN ("define-charset-internal", Fdefine_charset_internal, |
840 | Sdefine_charset_internal, charset_arg_max, MANY, 0, | |
04c2f2c5 DL |
841 | doc: /* For internal use only. |
842 | usage: (define-charset-internal ...) */) | |
5842a27b | 843 | (int nargs, Lisp_Object *args) |
4ed46869 | 844 | { |
3263d5a2 KH |
845 | /* Charset attr vector. */ |
846 | Lisp_Object attrs; | |
847 | Lisp_Object val; | |
848 | unsigned hash_code; | |
849 | struct Lisp_Hash_Table *hash_table = XHASH_TABLE (Vcharset_hash_table); | |
69f8de5b | 850 | int i, j; |
3263d5a2 KH |
851 | struct charset charset; |
852 | int id; | |
853 | int dimension; | |
854 | int new_definition_p; | |
855 | int nchars; | |
856 | ||
857 | if (nargs != charset_arg_max) | |
858 | return Fsignal (Qwrong_number_of_arguments, | |
859 | Fcons (intern ("define-charset-internal"), | |
860 | make_number (nargs))); | |
861 | ||
862 | attrs = Fmake_vector (make_number (charset_attr_max), Qnil); | |
863 | ||
864 | CHECK_SYMBOL (args[charset_arg_name]); | |
865 | ASET (attrs, charset_name, args[charset_arg_name]); | |
866 | ||
867 | val = args[charset_arg_code_space]; | |
868 | for (i = 0, dimension = 0, nchars = 1; i < 4; i++) | |
76d7b829 | 869 | { |
3263d5a2 KH |
870 | int min_byte, max_byte; |
871 | ||
872 | min_byte = XINT (Faref (val, make_number (i * 2))); | |
873 | max_byte = XINT (Faref (val, make_number (i * 2 + 1))); | |
874 | if (min_byte < 0 || min_byte > max_byte || max_byte >= 256) | |
875 | error ("Invalid :code-space value"); | |
876 | charset.code_space[i * 4] = min_byte; | |
877 | charset.code_space[i * 4 + 1] = max_byte; | |
878 | charset.code_space[i * 4 + 2] = max_byte - min_byte + 1; | |
879 | nchars *= charset.code_space[i * 4 + 2]; | |
880 | charset.code_space[i * 4 + 3] = nchars; | |
881 | if (max_byte > 0) | |
882 | dimension = i + 1; | |
883 | } | |
4ed46869 | 884 | |
3263d5a2 KH |
885 | val = args[charset_arg_dimension]; |
886 | if (NILP (val)) | |
887 | charset.dimension = dimension; | |
888 | else | |
4ed46869 | 889 | { |
3263d5a2 KH |
890 | CHECK_NATNUM (val); |
891 | charset.dimension = XINT (val); | |
892 | if (charset.dimension < 1 || charset.dimension > 4) | |
893 | args_out_of_range_3 (val, make_number (1), make_number (4)); | |
4ed46869 KH |
894 | } |
895 | ||
3263d5a2 KH |
896 | charset.code_linear_p |
897 | = (charset.dimension == 1 | |
898 | || (charset.code_space[2] == 256 | |
899 | && (charset.dimension == 2 | |
900 | || (charset.code_space[6] == 256 | |
901 | && (charset.dimension == 3 | |
902 | || charset.code_space[10] == 256))))); | |
903 | ||
69f8de5b | 904 | if (! charset.code_linear_p) |
4ed46869 | 905 | { |
69f8de5b | 906 | charset.code_space_mask = (unsigned char *) xmalloc (256); |
72af86bd | 907 | memset (charset.code_space_mask, 0, 256); |
69f8de5b KH |
908 | for (i = 0; i < 4; i++) |
909 | for (j = charset.code_space[i * 4]; j <= charset.code_space[i * 4 + 1]; | |
910 | j++) | |
911 | charset.code_space_mask[j] |= (1 << i); | |
4ed46869 KH |
912 | } |
913 | ||
3263d5a2 | 914 | charset.iso_chars_96 = charset.code_space[2] == 96; |
4ed46869 | 915 | |
3263d5a2 KH |
916 | charset.min_code = (charset.code_space[0] |
917 | | (charset.code_space[4] << 8) | |
918 | | (charset.code_space[8] << 16) | |
919 | | (charset.code_space[12] << 24)); | |
920 | charset.max_code = (charset.code_space[1] | |
921 | | (charset.code_space[5] << 8) | |
922 | | (charset.code_space[9] << 16) | |
923 | | (charset.code_space[13] << 24)); | |
820ee249 | 924 | charset.char_index_offset = 0; |
8a73a704 | 925 | |
820ee249 KH |
926 | val = args[charset_arg_min_code]; |
927 | if (! NILP (val)) | |
928 | { | |
929 | unsigned code; | |
fdb82f93 | 930 | |
820ee249 KH |
931 | if (INTEGERP (val)) |
932 | code = XINT (val); | |
933 | else | |
934 | { | |
935 | CHECK_CONS (val); | |
8f924df7 KH |
936 | CHECK_NUMBER_CAR (val); |
937 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
938 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
939 | } | |
940 | if (code < charset.min_code | |
941 | || code > charset.max_code) | |
942 | args_out_of_range_3 (make_number (charset.min_code), | |
943 | make_number (charset.max_code), val); | |
944 | charset.char_index_offset = CODE_POINT_TO_INDEX (&charset, code); | |
945 | charset.min_code = code; | |
946 | } | |
3fac5a51 | 947 | |
820ee249 KH |
948 | val = args[charset_arg_max_code]; |
949 | if (! NILP (val)) | |
3fac5a51 | 950 | { |
820ee249 KH |
951 | unsigned code; |
952 | ||
953 | if (INTEGERP (val)) | |
954 | code = XINT (val); | |
955 | else | |
956 | { | |
957 | CHECK_CONS (val); | |
8f924df7 KH |
958 | CHECK_NUMBER_CAR (val); |
959 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
960 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
961 | } | |
962 | if (code < charset.min_code | |
963 | || code > charset.max_code) | |
964 | args_out_of_range_3 (make_number (charset.min_code), | |
965 | make_number (charset.max_code), val); | |
966 | charset.max_code = code; | |
3fac5a51 | 967 | } |
3fac5a51 | 968 | |
ecca2aad | 969 | charset.compact_codes_p = charset.max_code < 0x10000; |
4ed46869 | 970 | |
3263d5a2 KH |
971 | val = args[charset_arg_invalid_code]; |
972 | if (NILP (val)) | |
973 | { | |
974 | if (charset.min_code > 0) | |
975 | charset.invalid_code = 0; | |
bbf12bb3 KH |
976 | else |
977 | { | |
3263d5a2 KH |
978 | XSETINT (val, charset.max_code + 1); |
979 | if (XINT (val) == charset.max_code + 1) | |
980 | charset.invalid_code = charset.max_code + 1; | |
981 | else | |
982 | error ("Attribute :invalid-code must be specified"); | |
76d7b829 | 983 | } |
76d7b829 | 984 | } |
3263d5a2 KH |
985 | else |
986 | { | |
987 | CHECK_NATNUM (val); | |
988 | charset.invalid_code = XFASTINT (val); | |
989 | } | |
4ed46869 | 990 | |
3263d5a2 KH |
991 | val = args[charset_arg_iso_final]; |
992 | if (NILP (val)) | |
993 | charset.iso_final = -1; | |
994 | else | |
995 | { | |
996 | CHECK_NUMBER (val); | |
997 | if (XINT (val) < '0' || XINT (val) > 127) | |
998 | error ("Invalid iso-final-char: %d", XINT (val)); | |
999 | charset.iso_final = XINT (val); | |
1000 | } | |
4ed46869 | 1001 | |
3263d5a2 KH |
1002 | val = args[charset_arg_iso_revision]; |
1003 | if (NILP (val)) | |
1004 | charset.iso_revision = -1; | |
1005 | else | |
4ed46869 | 1006 | { |
3263d5a2 KH |
1007 | CHECK_NUMBER (val); |
1008 | if (XINT (val) > 63) | |
1009 | args_out_of_range (make_number (63), val); | |
1010 | charset.iso_revision = XINT (val); | |
4ed46869 | 1011 | } |
4ed46869 | 1012 | |
3263d5a2 KH |
1013 | val = args[charset_arg_emacs_mule_id]; |
1014 | if (NILP (val)) | |
1015 | charset.emacs_mule_id = -1; | |
4ed46869 KH |
1016 | else |
1017 | { | |
3263d5a2 KH |
1018 | CHECK_NATNUM (val); |
1019 | if ((XINT (val) > 0 && XINT (val) <= 128) || XINT (val) >= 256) | |
1020 | error ("Invalid emacs-mule-id: %d", XINT (val)); | |
1021 | charset.emacs_mule_id = XINT (val); | |
c83ef371 | 1022 | } |
f6302ac9 | 1023 | |
3263d5a2 | 1024 | charset.ascii_compatible_p = ! NILP (args[charset_arg_ascii_compatible_p]); |
1d67c29b | 1025 | |
3263d5a2 | 1026 | charset.supplementary_p = ! NILP (args[charset_arg_supplementary_p]); |
4ed46869 | 1027 | |
3263d5a2 KH |
1028 | charset.unified_p = 0; |
1029 | ||
72af86bd | 1030 | memset (charset.fast_map, 0, sizeof (charset.fast_map)); |
3263d5a2 KH |
1031 | |
1032 | if (! NILP (args[charset_arg_code_offset])) | |
1033 | { | |
1034 | val = args[charset_arg_code_offset]; | |
1035 | CHECK_NUMBER (val); | |
1036 | ||
1037 | charset.method = CHARSET_METHOD_OFFSET; | |
1038 | charset.code_offset = XINT (val); | |
1039 | ||
1040 | i = CODE_POINT_TO_INDEX (&charset, charset.min_code); | |
1041 | charset.min_char = i + charset.code_offset; | |
1042 | i = CODE_POINT_TO_INDEX (&charset, charset.max_code); | |
1043 | charset.max_char = i + charset.code_offset; | |
1044 | if (charset.max_char > MAX_CHAR) | |
1045 | error ("Unsupported max char: %d", charset.max_char); | |
1046 | ||
f148205f KH |
1047 | i = (charset.min_char >> 7) << 7; |
1048 | for (; i < 0x10000 && i <= charset.max_char; i += 128) | |
3263d5a2 | 1049 | CHARSET_FAST_MAP_SET (i, charset.fast_map); |
f148205f | 1050 | i = (i >> 12) << 12; |
3263d5a2 KH |
1051 | for (; i <= charset.max_char; i += 0x1000) |
1052 | CHARSET_FAST_MAP_SET (i, charset.fast_map); | |
3620330b KH |
1053 | if (charset.code_offset == 0 && charset.max_char >= 0x80) |
1054 | charset.ascii_compatible_p = 1; | |
3263d5a2 KH |
1055 | } |
1056 | else if (! NILP (args[charset_arg_map])) | |
1057 | { | |
1058 | val = args[charset_arg_map]; | |
1059 | ASET (attrs, charset_map, val); | |
ecca2aad | 1060 | charset.method = CHARSET_METHOD_MAP; |
3263d5a2 | 1061 | } |
374c5cfd | 1062 | else if (! NILP (args[charset_arg_subset])) |
3263d5a2 | 1063 | { |
374c5cfd KH |
1064 | Lisp_Object parent; |
1065 | Lisp_Object parent_min_code, parent_max_code, parent_code_offset; | |
1066 | struct charset *parent_charset; | |
1067 | ||
1068 | val = args[charset_arg_subset]; | |
1069 | parent = Fcar (val); | |
1070 | CHECK_CHARSET_GET_CHARSET (parent, parent_charset); | |
1071 | parent_min_code = Fnth (make_number (1), val); | |
1072 | CHECK_NATNUM (parent_min_code); | |
1073 | parent_max_code = Fnth (make_number (2), val); | |
1074 | CHECK_NATNUM (parent_max_code); | |
1075 | parent_code_offset = Fnth (make_number (3), val); | |
1076 | CHECK_NUMBER (parent_code_offset); | |
1077 | val = Fmake_vector (make_number (4), Qnil); | |
1078 | ASET (val, 0, make_number (parent_charset->id)); | |
1079 | ASET (val, 1, parent_min_code); | |
1080 | ASET (val, 2, parent_max_code); | |
1081 | ASET (val, 3, parent_code_offset); | |
1082 | ASET (attrs, charset_subset, val); | |
1083 | ||
1084 | charset.method = CHARSET_METHOD_SUBSET; | |
1085 | /* Here, we just copy the parent's fast_map. It's not accurate, | |
1086 | but at least it works for quickly detecting which character | |
1087 | DOESN'T belong to this charset. */ | |
1088 | for (i = 0; i < 190; i++) | |
1089 | charset.fast_map[i] = parent_charset->fast_map[i]; | |
1090 | ||
1091 | /* We also copy these for parents. */ | |
1092 | charset.min_char = parent_charset->min_char; | |
1093 | charset.max_char = parent_charset->max_char; | |
1094 | } | |
1095 | else if (! NILP (args[charset_arg_superset])) | |
0282eb69 | 1096 | { |
374c5cfd KH |
1097 | val = args[charset_arg_superset]; |
1098 | charset.method = CHARSET_METHOD_SUPERSET; | |
3263d5a2 | 1099 | val = Fcopy_sequence (val); |
374c5cfd | 1100 | ASET (attrs, charset_superset, val); |
3263d5a2 KH |
1101 | |
1102 | charset.min_char = MAX_CHAR; | |
1103 | charset.max_char = 0; | |
1104 | for (; ! NILP (val); val = Fcdr (val)) | |
0282eb69 | 1105 | { |
3263d5a2 KH |
1106 | Lisp_Object elt, car_part, cdr_part; |
1107 | int this_id, offset; | |
1108 | struct charset *this_charset; | |
2e344af3 | 1109 | |
3263d5a2 KH |
1110 | elt = Fcar (val); |
1111 | if (CONSP (elt)) | |
2e344af3 | 1112 | { |
3263d5a2 KH |
1113 | car_part = XCAR (elt); |
1114 | cdr_part = XCDR (elt); | |
1115 | CHECK_CHARSET_GET_ID (car_part, this_id); | |
1116 | CHECK_NUMBER (cdr_part); | |
1117 | offset = XINT (cdr_part); | |
177c0ea7 | 1118 | } |
3263d5a2 | 1119 | else |
4ed46869 | 1120 | { |
3263d5a2 KH |
1121 | CHECK_CHARSET_GET_ID (elt, this_id); |
1122 | offset = 0; | |
4ed46869 | 1123 | } |
3263d5a2 KH |
1124 | XSETCAR (val, Fcons (make_number (this_id), make_number (offset))); |
1125 | ||
1126 | this_charset = CHARSET_FROM_ID (this_id); | |
1127 | if (charset.min_char > this_charset->min_char) | |
1128 | charset.min_char = this_charset->min_char; | |
1129 | if (charset.max_char < this_charset->max_char) | |
1130 | charset.max_char = this_charset->max_char; | |
1131 | for (i = 0; i < 190; i++) | |
1132 | charset.fast_map[i] |= this_charset->fast_map[i]; | |
0282eb69 | 1133 | } |
0282eb69 | 1134 | } |
2e344af3 | 1135 | else |
3263d5a2 | 1136 | error ("None of :code-offset, :map, :parents are specified"); |
05505664 | 1137 | |
3263d5a2 KH |
1138 | val = args[charset_arg_unify_map]; |
1139 | if (! NILP (val) && !STRINGP (val)) | |
1140 | CHECK_VECTOR (val); | |
1141 | ASET (attrs, charset_unify_map, val); | |
05505664 | 1142 | |
3263d5a2 KH |
1143 | CHECK_LIST (args[charset_arg_plist]); |
1144 | ASET (attrs, charset_plist, args[charset_arg_plist]); | |
4ed46869 | 1145 | |
3263d5a2 KH |
1146 | charset.hash_index = hash_lookup (hash_table, args[charset_arg_name], |
1147 | &hash_code); | |
1148 | if (charset.hash_index >= 0) | |
1149 | { | |
1150 | new_definition_p = 0; | |
4f65af01 | 1151 | id = XFASTINT (CHARSET_SYMBOL_ID (args[charset_arg_name])); |
3263d5a2 KH |
1152 | HASH_VALUE (hash_table, charset.hash_index) = attrs; |
1153 | } | |
1a45ff10 | 1154 | else |
3263d5a2 KH |
1155 | { |
1156 | charset.hash_index = hash_put (hash_table, args[charset_arg_name], attrs, | |
1157 | hash_code); | |
1158 | if (charset_table_used == charset_table_size) | |
1159 | { | |
2fe1edd1 KH |
1160 | struct charset *new_table |
1161 | = (struct charset *) xmalloc (sizeof (struct charset) | |
1162 | * (charset_table_size + 16)); | |
72af86bd AS |
1163 | memcpy (new_table, charset_table, |
1164 | sizeof (struct charset) * charset_table_size); | |
2fe1edd1 KH |
1165 | charset_table_size += 16; |
1166 | charset_table = new_table; | |
3263d5a2 KH |
1167 | } |
1168 | id = charset_table_used++; | |
3263d5a2 KH |
1169 | new_definition_p = 1; |
1170 | } | |
2e344af3 | 1171 | |
4f65af01 | 1172 | ASET (attrs, charset_id, make_number (id)); |
3263d5a2 KH |
1173 | charset.id = id; |
1174 | charset_table[id] = charset; | |
2e344af3 | 1175 | |
ecca2aad | 1176 | if (charset.method == CHARSET_METHOD_MAP) |
b8ebe9dd KH |
1177 | { |
1178 | load_charset (&charset, 0); | |
1179 | charset_table[id] = charset; | |
1180 | } | |
ecca2aad | 1181 | |
3263d5a2 | 1182 | if (charset.iso_final >= 0) |
4ed46869 | 1183 | { |
3263d5a2 KH |
1184 | ISO_CHARSET_TABLE (charset.dimension, charset.iso_chars_96, |
1185 | charset.iso_final) = id; | |
1186 | if (new_definition_p) | |
1187 | Viso_2022_charset_list = nconc2 (Viso_2022_charset_list, | |
1188 | Fcons (make_number (id), Qnil)); | |
7c7dceee KH |
1189 | if (ISO_CHARSET_TABLE (1, 0, 'J') == id) |
1190 | charset_jisx0201_roman = id; | |
1191 | else if (ISO_CHARSET_TABLE (2, 0, '@') == id) | |
1192 | charset_jisx0208_1978 = id; | |
1193 | else if (ISO_CHARSET_TABLE (2, 0, 'B') == id) | |
1194 | charset_jisx0208 = id; | |
d32320c4 KH |
1195 | else if (ISO_CHARSET_TABLE (2, 0, 'C') == id) |
1196 | charset_ksc5601 = id; | |
4ed46869 | 1197 | } |
d0cf2d48 | 1198 | |
3263d5a2 | 1199 | if (charset.emacs_mule_id >= 0) |
4ed46869 | 1200 | { |
b84ae584 | 1201 | emacs_mule_charset[charset.emacs_mule_id] = id; |
4f65af01 KH |
1202 | if (charset.emacs_mule_id < 0xA0) |
1203 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 1; | |
3b1ae89b KH |
1204 | else |
1205 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 2; | |
3263d5a2 KH |
1206 | if (new_definition_p) |
1207 | Vemacs_mule_charset_list = nconc2 (Vemacs_mule_charset_list, | |
1208 | Fcons (make_number (id), Qnil)); | |
4ed46869 KH |
1209 | } |
1210 | ||
3263d5a2 KH |
1211 | if (new_definition_p) |
1212 | { | |
1213 | Vcharset_list = Fcons (args[charset_arg_name], Vcharset_list); | |
8055c66a KH |
1214 | if (charset.supplementary_p) |
1215 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1216 | Fcons (make_number (id), Qnil)); | |
1217 | else | |
880820fe KH |
1218 | { |
1219 | Lisp_Object tail; | |
1220 | ||
1221 | for (tail = Vcharset_ordered_list; CONSP (tail); tail = XCDR (tail)) | |
1222 | { | |
1223 | struct charset *cs = CHARSET_FROM_ID (XINT (XCAR (tail))); | |
1224 | ||
1225 | if (cs->supplementary_p) | |
1226 | break; | |
1227 | } | |
1228 | if (EQ (tail, Vcharset_ordered_list)) | |
1229 | Vcharset_ordered_list = Fcons (make_number (id), | |
1230 | Vcharset_ordered_list); | |
1231 | else if (NILP (tail)) | |
1232 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1233 | Fcons (make_number (id), Qnil)); | |
1234 | else | |
1235 | { | |
1236 | val = Fcons (XCAR (tail), XCDR (tail)); | |
1237 | XSETCDR (tail, val); | |
1238 | XSETCAR (tail, make_number (id)); | |
1239 | } | |
1240 | } | |
dbbb237d | 1241 | charset_ordered_list_tick++; |
3263d5a2 | 1242 | } |
4ed46869 | 1243 | |
3263d5a2 | 1244 | return Qnil; |
4ed46869 KH |
1245 | } |
1246 | ||
2fe1edd1 KH |
1247 | |
1248 | /* Same as Fdefine_charset_internal but arguments are more convenient | |
1249 | to call from C (typically in syms_of_charset). This can define a | |
1250 | charset of `offset' method only. Return the ID of the new | |
1251 | charset. */ | |
1252 | ||
1253 | static int | |
dd4c5104 DN |
1254 | define_charset_internal (Lisp_Object name, |
1255 | int dimension, | |
675e2c69 | 1256 | const unsigned char *code_space, |
dd4c5104 DN |
1257 | unsigned min_code, unsigned max_code, |
1258 | int iso_final, int iso_revision, int emacs_mule_id, | |
1259 | int ascii_compatible, int supplementary, | |
1260 | int code_offset) | |
2fe1edd1 KH |
1261 | { |
1262 | Lisp_Object args[charset_arg_max]; | |
1263 | Lisp_Object plist[14]; | |
1264 | Lisp_Object val; | |
1265 | int i; | |
1266 | ||
1267 | args[charset_arg_name] = name; | |
1268 | args[charset_arg_dimension] = make_number (dimension); | |
1269 | val = Fmake_vector (make_number (8), make_number (0)); | |
1270 | for (i = 0; i < 8; i++) | |
1271 | ASET (val, i, make_number (code_space[i])); | |
1272 | args[charset_arg_code_space] = val; | |
1273 | args[charset_arg_min_code] = make_number (min_code); | |
1274 | args[charset_arg_max_code] = make_number (max_code); | |
1275 | args[charset_arg_iso_final] | |
1276 | = (iso_final < 0 ? Qnil : make_number (iso_final)); | |
1277 | args[charset_arg_iso_revision] = make_number (iso_revision); | |
1278 | args[charset_arg_emacs_mule_id] | |
1279 | = (emacs_mule_id < 0 ? Qnil : make_number (emacs_mule_id)); | |
1280 | args[charset_arg_ascii_compatible_p] = ascii_compatible ? Qt : Qnil; | |
7acf89e6 | 1281 | args[charset_arg_supplementary_p] = supplementary ? Qt : Qnil; |
2fe1edd1 KH |
1282 | args[charset_arg_invalid_code] = Qnil; |
1283 | args[charset_arg_code_offset] = make_number (code_offset); | |
1284 | args[charset_arg_map] = Qnil; | |
1285 | args[charset_arg_subset] = Qnil; | |
1286 | args[charset_arg_superset] = Qnil; | |
1287 | args[charset_arg_unify_map] = Qnil; | |
1288 | ||
d67b4f80 | 1289 | plist[0] = intern_c_string (":name"); |
2fe1edd1 | 1290 | plist[1] = args[charset_arg_name]; |
d67b4f80 | 1291 | plist[2] = intern_c_string (":dimension"); |
2fe1edd1 | 1292 | plist[3] = args[charset_arg_dimension]; |
d67b4f80 | 1293 | plist[4] = intern_c_string (":code-space"); |
2fe1edd1 | 1294 | plist[5] = args[charset_arg_code_space]; |
d67b4f80 | 1295 | plist[6] = intern_c_string (":iso-final-char"); |
2fe1edd1 | 1296 | plist[7] = args[charset_arg_iso_final]; |
d67b4f80 | 1297 | plist[8] = intern_c_string (":emacs-mule-id"); |
2fe1edd1 | 1298 | plist[9] = args[charset_arg_emacs_mule_id]; |
d67b4f80 | 1299 | plist[10] = intern_c_string (":ascii-compatible-p"); |
2fe1edd1 | 1300 | plist[11] = args[charset_arg_ascii_compatible_p]; |
d67b4f80 | 1301 | plist[12] = intern_c_string (":code-offset"); |
2fe1edd1 KH |
1302 | plist[13] = args[charset_arg_code_offset]; |
1303 | ||
1304 | args[charset_arg_plist] = Flist (14, plist); | |
1305 | Fdefine_charset_internal (charset_arg_max, args); | |
1306 | ||
1307 | return XINT (CHARSET_SYMBOL_ID (name)); | |
1308 | } | |
1309 | ||
1310 | ||
3263d5a2 KH |
1311 | DEFUN ("define-charset-alias", Fdefine_charset_alias, |
1312 | Sdefine_charset_alias, 2, 2, 0, | |
1313 | doc: /* Define ALIAS as an alias for charset CHARSET. */) | |
5842a27b | 1314 | (Lisp_Object alias, Lisp_Object charset) |
4ed46869 | 1315 | { |
3263d5a2 KH |
1316 | Lisp_Object attr; |
1317 | ||
1318 | CHECK_CHARSET_GET_ATTR (charset, attr); | |
1319 | Fputhash (alias, attr, Vcharset_hash_table); | |
528623a0 | 1320 | Vcharset_list = Fcons (alias, Vcharset_list); |
3263d5a2 KH |
1321 | return Qnil; |
1322 | } | |
4ed46869 | 1323 | |
4ed46869 | 1324 | |
3263d5a2 | 1325 | DEFUN ("charset-plist", Fcharset_plist, Scharset_plist, 1, 1, 0, |
56a46d1d | 1326 | doc: /* Return the property list of CHARSET. */) |
5842a27b | 1327 | (Lisp_Object charset) |
3263d5a2 KH |
1328 | { |
1329 | Lisp_Object attrs; | |
1330 | ||
1331 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1332 | return CHARSET_ATTR_PLIST (attrs); | |
1333 | } | |
1334 | ||
1335 | ||
1336 | DEFUN ("set-charset-plist", Fset_charset_plist, Sset_charset_plist, 2, 2, 0, | |
1337 | doc: /* Set CHARSET's property list to PLIST. */) | |
5842a27b | 1338 | (Lisp_Object charset, Lisp_Object plist) |
3263d5a2 KH |
1339 | { |
1340 | Lisp_Object attrs; | |
1341 | ||
1342 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1343 | CHARSET_ATTR_PLIST (attrs) = plist; | |
1344 | return plist; | |
1345 | } | |
1346 | ||
1347 | ||
dbbb237d | 1348 | DEFUN ("unify-charset", Funify_charset, Sunify_charset, 1, 3, 0, |
56a46d1d DL |
1349 | doc: /* Unify characters of CHARSET with Unicode. |
1350 | This means reading the relevant file and installing the table defined | |
dbbb237d KH |
1351 | by CHARSET's `:unify-map' property. |
1352 | ||
64165ae2 DL |
1353 | Optional second arg UNIFY-MAP is a file name string or a vector. It has |
1354 | the same meaning as the `:unify-map' attribute in the function | |
dbbb237d KH |
1355 | `define-charset' (which see). |
1356 | ||
1357 | Optional third argument DEUNIFY, if non-nil, means to de-unify CHARSET. */) | |
5842a27b | 1358 | (Lisp_Object charset, Lisp_Object unify_map, Lisp_Object deunify) |
8a73a704 | 1359 | { |
3263d5a2 KH |
1360 | int id; |
1361 | struct charset *cs; | |
8f924df7 | 1362 | |
3263d5a2 KH |
1363 | CHECK_CHARSET_GET_ID (charset, id); |
1364 | cs = CHARSET_FROM_ID (id); | |
dbbb237d KH |
1365 | if (NILP (deunify) |
1366 | ? CHARSET_UNIFIED_P (cs) && ! NILP (CHARSET_DEUNIFIER (cs)) | |
1367 | : ! CHARSET_UNIFIED_P (cs)) | |
3263d5a2 | 1368 | return Qnil; |
dbbb237d | 1369 | |
3263d5a2 | 1370 | CHARSET_UNIFIED_P (cs) = 0; |
dbbb237d KH |
1371 | if (NILP (deunify)) |
1372 | { | |
ecca2aad KH |
1373 | if (CHARSET_METHOD (cs) != CHARSET_METHOD_OFFSET |
1374 | || CHARSET_CODE_OFFSET (cs) < 0x110000) | |
8f924df7 | 1375 | error ("Can't unify charset: %s", SDATA (SYMBOL_NAME (charset))); |
dbbb237d KH |
1376 | if (NILP (unify_map)) |
1377 | unify_map = CHARSET_UNIFY_MAP (cs); | |
dbbb237d | 1378 | else |
ecca2aad KH |
1379 | { |
1380 | if (! STRINGP (unify_map) && ! VECTORP (unify_map)) | |
1381 | signal_error ("Bad unify-map", unify_map); | |
1382 | CHARSET_UNIFY_MAP (cs) = unify_map; | |
1383 | } | |
1384 | if (NILP (Vchar_unify_table)) | |
1385 | Vchar_unify_table = Fmake_char_table (Qnil, Qnil); | |
1386 | char_table_set_range (Vchar_unify_table, | |
1387 | cs->min_char, cs->max_char, charset); | |
dbbb237d KH |
1388 | CHARSET_UNIFIED_P (cs) = 1; |
1389 | } | |
1390 | else if (CHAR_TABLE_P (Vchar_unify_table)) | |
1391 | { | |
1392 | int min_code = CHARSET_MIN_CODE (cs); | |
1393 | int max_code = CHARSET_MAX_CODE (cs); | |
1394 | int min_char = DECODE_CHAR (cs, min_code); | |
1395 | int max_char = DECODE_CHAR (cs, max_code); | |
8f924df7 | 1396 | |
dbbb237d KH |
1397 | char_table_set_range (Vchar_unify_table, min_char, max_char, Qnil); |
1398 | } | |
8f924df7 | 1399 | |
3263d5a2 | 1400 | return Qnil; |
8a73a704 KH |
1401 | } |
1402 | ||
3fac5a51 KH |
1403 | DEFUN ("get-unused-iso-final-char", Fget_unused_iso_final_char, |
1404 | Sget_unused_iso_final_char, 2, 2, 0, | |
3263d5a2 | 1405 | doc: /* |
d0cf2d48 | 1406 | Return an unused ISO final char for a charset of DIMENSION and CHARS. |
fdb82f93 PJ |
1407 | DIMENSION is the number of bytes to represent a character: 1 or 2. |
1408 | CHARS is the number of characters in a dimension: 94 or 96. | |
1409 | ||
1410 | This final char is for private use, thus the range is `0' (48) .. `?' (63). | |
1721b6af | 1411 | If there's no unused final char for the specified kind of charset, |
fdb82f93 | 1412 | return nil. */) |
5842a27b | 1413 | (Lisp_Object dimension, Lisp_Object chars) |
3fac5a51 KH |
1414 | { |
1415 | int final_char; | |
1416 | ||
b7826503 PJ |
1417 | CHECK_NUMBER (dimension); |
1418 | CHECK_NUMBER (chars); | |
3263d5a2 KH |
1419 | if (XINT (dimension) != 1 && XINT (dimension) != 2 && XINT (dimension) != 3) |
1420 | args_out_of_range_3 (dimension, make_number (1), make_number (3)); | |
3fac5a51 | 1421 | if (XINT (chars) != 94 && XINT (chars) != 96) |
3263d5a2 | 1422 | args_out_of_range_3 (chars, make_number (94), make_number (96)); |
3fac5a51 | 1423 | for (final_char = '0'; final_char <= '?'; final_char++) |
3263d5a2 KH |
1424 | if (ISO_CHARSET_TABLE (XINT (dimension), XINT (chars), final_char) < 0) |
1425 | break; | |
3fac5a51 KH |
1426 | return (final_char <= '?' ? make_number (final_char) : Qnil); |
1427 | } | |
1428 | ||
3263d5a2 | 1429 | static void |
971de7fb | 1430 | check_iso_charset_parameter (Lisp_Object dimension, Lisp_Object chars, Lisp_Object final_char) |
4ed46869 | 1431 | { |
3263d5a2 KH |
1432 | CHECK_NATNUM (dimension); |
1433 | CHECK_NATNUM (chars); | |
1434 | CHECK_NATNUM (final_char); | |
4ed46869 | 1435 | |
3263d5a2 KH |
1436 | if (XINT (dimension) > 3) |
1437 | error ("Invalid DIMENSION %d, it should be 1, 2, or 3", XINT (dimension)); | |
4ed46869 KH |
1438 | if (XINT (chars) != 94 && XINT (chars) != 96) |
1439 | error ("Invalid CHARS %d, it should be 94 or 96", XINT (chars)); | |
3263d5a2 | 1440 | if (XINT (final_char) < '0' || XINT (final_char) > '~') |
4ed46869 | 1441 | error ("Invalid FINAL-CHAR %c, it should be `0'..`~'", XINT (chars)); |
3263d5a2 KH |
1442 | } |
1443 | ||
1444 | ||
1445 | DEFUN ("declare-equiv-charset", Fdeclare_equiv_charset, Sdeclare_equiv_charset, | |
1446 | 4, 4, 0, | |
cefd8c4f KH |
1447 | doc: /* Declare an equivalent charset for ISO-2022 decoding. |
1448 | ||
1449 | On decoding by an ISO-2022 base coding system, when a charset | |
1450 | specified by DIMENSION, CHARS, and FINAL-CHAR is designated, behave as | |
1451 | if CHARSET is designated instead. */) | |
5842a27b | 1452 | (Lisp_Object dimension, Lisp_Object chars, Lisp_Object final_char, Lisp_Object charset) |
3263d5a2 KH |
1453 | { |
1454 | int id; | |
82215ce9 | 1455 | int chars_flag; |
4ed46869 | 1456 | |
3263d5a2 KH |
1457 | CHECK_CHARSET_GET_ID (charset, id); |
1458 | check_iso_charset_parameter (dimension, chars, final_char); | |
82215ce9 KH |
1459 | chars_flag = XINT (chars) == 96; |
1460 | ISO_CHARSET_TABLE (XINT (dimension), chars_flag, XINT (final_char)) = id; | |
4ed46869 KH |
1461 | return Qnil; |
1462 | } | |
1463 | ||
3263d5a2 | 1464 | |
2e344af3 KH |
1465 | /* Return information about charsets in the text at PTR of NBYTES |
1466 | bytes, which are NCHARS characters. The value is: | |
f6302ac9 | 1467 | |
cfe34140 | 1468 | 0: Each character is represented by one byte. This is always |
3263d5a2 KH |
1469 | true for a unibyte string. For a multibyte string, true if |
1470 | it contains only ASCII characters. | |
1471 | ||
28c026cd DL |
1472 | 1: No charsets other than ascii, control-1, and latin-1 are |
1473 | found. | |
1d67c29b | 1474 | |
3263d5a2 KH |
1475 | 2: Otherwise. |
1476 | */ | |
4ed46869 KH |
1477 | |
1478 | int | |
971de7fb | 1479 | string_xstring_p (Lisp_Object string) |
4ed46869 | 1480 | { |
8f924df7 KH |
1481 | const unsigned char *p = SDATA (string); |
1482 | const unsigned char *endp = p + SBYTES (string); | |
3263d5a2 | 1483 | |
8f924df7 | 1484 | if (SCHARS (string) == SBYTES (string)) |
3263d5a2 KH |
1485 | return 0; |
1486 | ||
3263d5a2 | 1487 | while (p < endp) |
0282eb69 | 1488 | { |
3263d5a2 | 1489 | int c = STRING_CHAR_ADVANCE (p); |
2e344af3 | 1490 | |
3cc67a4d | 1491 | if (c >= 0x100) |
3263d5a2 | 1492 | return 2; |
0282eb69 | 1493 | } |
3263d5a2 KH |
1494 | return 1; |
1495 | } | |
05505664 | 1496 | |
05505664 | 1497 | |
3263d5a2 | 1498 | /* Find charsets in the string at PTR of NCHARS and NBYTES. |
4ed46869 | 1499 | |
3cc67a4d KH |
1500 | CHARSETS is a vector. If Nth element is non-nil, it means the |
1501 | charset whose id is N is already found. | |
2e344af3 | 1502 | |
3263d5a2 | 1503 | It may lookup a translation table TABLE if supplied. */ |
2e344af3 | 1504 | |
3263d5a2 | 1505 | static void |
971de7fb | 1506 | find_charsets_in_text (const unsigned char *ptr, EMACS_INT nchars, EMACS_INT nbytes, Lisp_Object charsets, Lisp_Object table, int multibyte) |
3263d5a2 | 1507 | { |
dbbb237d | 1508 | const unsigned char *pend = ptr + nbytes; |
3263d5a2 KH |
1509 | |
1510 | if (nchars == nbytes) | |
3263d5a2 | 1511 | { |
3cc67a4d KH |
1512 | if (multibyte) |
1513 | ASET (charsets, charset_ascii, Qt); | |
1514 | else | |
1515 | while (ptr < pend) | |
1516 | { | |
1517 | int c = *ptr++; | |
1518 | ||
1519 | if (!NILP (table)) | |
1520 | c = translate_char (table, c); | |
1521 | if (ASCII_BYTE_P (c)) | |
1522 | ASET (charsets, charset_ascii, Qt); | |
1523 | else | |
1524 | ASET (charsets, charset_eight_bit, Qt); | |
1525 | } | |
1526 | } | |
1527 | else | |
1528 | { | |
1529 | while (ptr < pend) | |
3263d5a2 | 1530 | { |
3cc67a4d KH |
1531 | int c = STRING_CHAR_ADVANCE (ptr); |
1532 | struct charset *charset; | |
3263d5a2 | 1533 | |
3cc67a4d KH |
1534 | if (!NILP (table)) |
1535 | c = translate_char (table, c); | |
1536 | charset = CHAR_CHARSET (c); | |
1537 | ASET (charsets, CHARSET_ID (charset), Qt); | |
4ed46869 | 1538 | } |
4ed46869 | 1539 | } |
4ed46869 KH |
1540 | } |
1541 | ||
1542 | DEFUN ("find-charset-region", Ffind_charset_region, Sfind_charset_region, | |
23d2a7f1 | 1543 | 2, 3, 0, |
fdb82f93 PJ |
1544 | doc: /* Return a list of charsets in the region between BEG and END. |
1545 | BEG and END are buffer positions. | |
1546 | Optional arg TABLE if non-nil is a translation table to look up. | |
1547 | ||
fdb82f93 PJ |
1548 | If the current buffer is unibyte, the returned list may contain |
1549 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) | |
5842a27b | 1550 | (Lisp_Object beg, Lisp_Object end, Lisp_Object table) |
4ed46869 | 1551 | { |
3263d5a2 | 1552 | Lisp_Object charsets; |
42ca828e DL |
1553 | EMACS_INT from, from_byte, to, stop, stop_byte; |
1554 | int i; | |
4ed46869 | 1555 | Lisp_Object val; |
3cc67a4d | 1556 | int multibyte = ! NILP (current_buffer->enable_multibyte_characters); |
4ed46869 KH |
1557 | |
1558 | validate_region (&beg, &end); | |
1559 | from = XFASTINT (beg); | |
1560 | stop = to = XFASTINT (end); | |
6ae1f27e | 1561 | |
4ed46869 | 1562 | if (from < GPT && GPT < to) |
6ae1f27e RS |
1563 | { |
1564 | stop = GPT; | |
1565 | stop_byte = GPT_BYTE; | |
1566 | } | |
1567 | else | |
1568 | stop_byte = CHAR_TO_BYTE (stop); | |
1569 | ||
1570 | from_byte = CHAR_TO_BYTE (from); | |
1571 | ||
3263d5a2 | 1572 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
4ed46869 KH |
1573 | while (1) |
1574 | { | |
3263d5a2 | 1575 | find_charsets_in_text (BYTE_POS_ADDR (from_byte), stop - from, |
3cc67a4d KH |
1576 | stop_byte - from_byte, charsets, table, |
1577 | multibyte); | |
4ed46869 | 1578 | if (stop < to) |
6ae1f27e RS |
1579 | { |
1580 | from = stop, from_byte = stop_byte; | |
1581 | stop = to, stop_byte = CHAR_TO_BYTE (stop); | |
1582 | } | |
4ed46869 KH |
1583 | else |
1584 | break; | |
1585 | } | |
6ae1f27e | 1586 | |
4ed46869 | 1587 | val = Qnil; |
3263d5a2 | 1588 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1589 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1590 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1591 | return val; |
1592 | } | |
1593 | ||
1594 | DEFUN ("find-charset-string", Ffind_charset_string, Sfind_charset_string, | |
23d2a7f1 | 1595 | 1, 2, 0, |
fdb82f93 PJ |
1596 | doc: /* Return a list of charsets in STR. |
1597 | Optional arg TABLE if non-nil is a translation table to look up. | |
1598 | ||
fdb82f93 | 1599 | If STR is unibyte, the returned list may contain |
3263d5a2 | 1600 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) |
5842a27b | 1601 | (Lisp_Object str, Lisp_Object table) |
4ed46869 | 1602 | { |
3263d5a2 | 1603 | Lisp_Object charsets; |
4ed46869 KH |
1604 | int i; |
1605 | Lisp_Object val; | |
1606 | ||
b7826503 | 1607 | CHECK_STRING (str); |
87b089ad | 1608 | |
3263d5a2 | 1609 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
8f924df7 | 1610 | find_charsets_in_text (SDATA (str), SCHARS (str), SBYTES (str), |
3cc67a4d KH |
1611 | charsets, table, |
1612 | STRING_MULTIBYTE (str)); | |
4ed46869 | 1613 | val = Qnil; |
3263d5a2 | 1614 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1615 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1616 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1617 | return val; |
1618 | } | |
2e344af3 | 1619 | |
4ed46869 | 1620 | \f |
3263d5a2 | 1621 | |
ecca2aad KH |
1622 | /* Return a unified character code for C (>= 0x110000). VAL is a |
1623 | value of Vchar_unify_table for C; i.e. it is nil, an integer, or a | |
1624 | charset symbol. */ | |
1625 | int | |
971de7fb | 1626 | maybe_unify_char (int c, Lisp_Object val) |
ecca2aad KH |
1627 | { |
1628 | struct charset *charset; | |
1629 | ||
1630 | if (INTEGERP (val)) | |
1631 | return XINT (val); | |
1632 | if (NILP (val)) | |
1633 | return c; | |
1634 | ||
1635 | CHECK_CHARSET_GET_CHARSET (val, charset); | |
1636 | load_charset (charset, 1); | |
1637 | if (! inhibit_load_charset_map) | |
1638 | { | |
1639 | val = CHAR_TABLE_REF (Vchar_unify_table, c); | |
1640 | if (! NILP (val)) | |
1641 | c = XINT (val); | |
1642 | } | |
1643 | else | |
1644 | { | |
1645 | int code_index = c - CHARSET_CODE_OFFSET (charset); | |
1646 | int unified = GET_TEMP_CHARSET_WORK_DECODER (code_index); | |
1647 | ||
1648 | if (unified > 0) | |
1649 | c = unified; | |
1650 | } | |
1651 | return c; | |
1652 | } | |
1653 | ||
1654 | ||
3263d5a2 KH |
1655 | /* Return a character correponding to the code-point CODE of |
1656 | CHARSET. */ | |
1657 | ||
1658 | int | |
971de7fb | 1659 | decode_char (struct charset *charset, unsigned int code) |
4ed46869 | 1660 | { |
3263d5a2 KH |
1661 | int c, char_index; |
1662 | enum charset_method method = CHARSET_METHOD (charset); | |
ac4137cc | 1663 | |
3263d5a2 KH |
1664 | if (code < CHARSET_MIN_CODE (charset) || code > CHARSET_MAX_CODE (charset)) |
1665 | return -1; | |
4ed46869 | 1666 | |
374c5cfd | 1667 | if (method == CHARSET_METHOD_SUBSET) |
2e344af3 | 1668 | { |
374c5cfd KH |
1669 | Lisp_Object subset_info; |
1670 | ||
1671 | subset_info = CHARSET_SUBSET (charset); | |
1672 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1673 | code -= XINT (AREF (subset_info, 3)); | |
1674 | if (code < XFASTINT (AREF (subset_info, 1)) | |
1675 | || code > XFASTINT (AREF (subset_info, 2))) | |
1676 | c = -1; | |
1677 | else | |
1678 | c = DECODE_CHAR (charset, code); | |
2e344af3 | 1679 | } |
374c5cfd | 1680 | else if (method == CHARSET_METHOD_SUPERSET) |
2e344af3 | 1681 | { |
3263d5a2 | 1682 | Lisp_Object parents; |
4ed46869 | 1683 | |
374c5cfd | 1684 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 KH |
1685 | c = -1; |
1686 | for (; CONSP (parents); parents = XCDR (parents)) | |
1687 | { | |
1688 | int id = XINT (XCAR (XCAR (parents))); | |
1689 | int code_offset = XINT (XCDR (XCAR (parents))); | |
374c5cfd | 1690 | unsigned this_code = code - code_offset; |
4ed46869 | 1691 | |
3263d5a2 KH |
1692 | charset = CHARSET_FROM_ID (id); |
1693 | if ((c = DECODE_CHAR (charset, this_code)) >= 0) | |
1694 | break; | |
1695 | } | |
1696 | } | |
1697 | else | |
ac4137cc | 1698 | { |
3263d5a2 | 1699 | char_index = CODE_POINT_TO_INDEX (charset, code); |
69f8de5b KH |
1700 | if (char_index < 0) |
1701 | return -1; | |
4ed46869 | 1702 | |
3263d5a2 | 1703 | if (method == CHARSET_METHOD_MAP) |
ac4137cc | 1704 | { |
3263d5a2 | 1705 | Lisp_Object decoder; |
4ed46869 | 1706 | |
3263d5a2 KH |
1707 | decoder = CHARSET_DECODER (charset); |
1708 | if (! VECTORP (decoder)) | |
ecca2aad KH |
1709 | { |
1710 | load_charset (charset, 1); | |
1711 | decoder = CHARSET_DECODER (charset); | |
1712 | } | |
1713 | if (VECTORP (decoder)) | |
1714 | c = XINT (AREF (decoder, char_index)); | |
1715 | else | |
1716 | c = GET_TEMP_CHARSET_WORK_DECODER (char_index); | |
ac4137cc | 1717 | } |
ecca2aad | 1718 | else /* method == CHARSET_METHOD_OFFSET */ |
ac4137cc | 1719 | { |
3263d5a2 | 1720 | c = char_index + CHARSET_CODE_OFFSET (charset); |
ecca2aad KH |
1721 | if (CHARSET_UNIFIED_P (charset) |
1722 | && c > MAX_UNICODE_CHAR) | |
1723 | MAYBE_UNIFY_CHAR (c); | |
ac4137cc KH |
1724 | } |
1725 | } | |
4ed46869 | 1726 | |
3263d5a2 | 1727 | return c; |
90d7b74e KH |
1728 | } |
1729 | ||
374c5cfd KH |
1730 | /* Variable used temporarily by the macro ENCODE_CHAR. */ |
1731 | Lisp_Object charset_work; | |
4ed46869 | 1732 | |
3263d5a2 | 1733 | /* Return a code-point of CHAR in CHARSET. If CHAR doesn't belong to |
28c026cd DL |
1734 | CHARSET, return CHARSET_INVALID_CODE (CHARSET). If STRICT is true, |
1735 | use CHARSET's strict_max_char instead of max_char. */ | |
4ed46869 | 1736 | |
3263d5a2 | 1737 | unsigned |
971de7fb | 1738 | encode_char (struct charset *charset, int c) |
9d3d8cba | 1739 | { |
3263d5a2 KH |
1740 | unsigned code; |
1741 | enum charset_method method = CHARSET_METHOD (charset); | |
9d3d8cba | 1742 | |
3263d5a2 | 1743 | if (CHARSET_UNIFIED_P (charset)) |
ac4137cc | 1744 | { |
6809ca75 | 1745 | Lisp_Object deunifier; |
ecca2aad | 1746 | int code_index = -1; |
4ed46869 | 1747 | |
3263d5a2 KH |
1748 | deunifier = CHARSET_DEUNIFIER (charset); |
1749 | if (! CHAR_TABLE_P (deunifier)) | |
ac4137cc | 1750 | { |
ecca2aad | 1751 | load_charset (charset, 2); |
3263d5a2 | 1752 | deunifier = CHARSET_DEUNIFIER (charset); |
ac4137cc | 1753 | } |
ecca2aad KH |
1754 | if (CHAR_TABLE_P (deunifier)) |
1755 | { | |
1756 | Lisp_Object deunified = CHAR_TABLE_REF (deunifier, c); | |
1757 | ||
1758 | if (INTEGERP (deunified)) | |
1759 | code_index = XINT (deunified); | |
1760 | } | |
1761 | else | |
1762 | { | |
1763 | code_index = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
1764 | } | |
1765 | if (code_index >= 0) | |
1766 | c = CHARSET_CODE_OFFSET (charset) + code_index; | |
ac4137cc | 1767 | } |
9d3d8cba | 1768 | |
374c5cfd KH |
1769 | if (method == CHARSET_METHOD_SUBSET) |
1770 | { | |
1771 | Lisp_Object subset_info; | |
1772 | struct charset *this_charset; | |
1773 | ||
1774 | subset_info = CHARSET_SUBSET (charset); | |
1775 | this_charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1776 | code = ENCODE_CHAR (this_charset, c); | |
1777 | if (code == CHARSET_INVALID_CODE (this_charset) | |
1778 | || code < XFASTINT (AREF (subset_info, 1)) | |
1779 | || code > XFASTINT (AREF (subset_info, 2))) | |
1780 | return CHARSET_INVALID_CODE (charset); | |
1781 | code += XINT (AREF (subset_info, 3)); | |
1782 | return code; | |
1783 | } | |
9d3d8cba | 1784 | |
374c5cfd | 1785 | if (method == CHARSET_METHOD_SUPERSET) |
859f2b3c | 1786 | { |
3263d5a2 | 1787 | Lisp_Object parents; |
d2665018 | 1788 | |
374c5cfd | 1789 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 | 1790 | for (; CONSP (parents); parents = XCDR (parents)) |
beeedaad | 1791 | { |
3263d5a2 KH |
1792 | int id = XINT (XCAR (XCAR (parents))); |
1793 | int code_offset = XINT (XCDR (XCAR (parents))); | |
1794 | struct charset *this_charset = CHARSET_FROM_ID (id); | |
d2665018 | 1795 | |
3263d5a2 | 1796 | code = ENCODE_CHAR (this_charset, c); |
dbbb237d KH |
1797 | if (code != CHARSET_INVALID_CODE (this_charset)) |
1798 | return code + code_offset; | |
beeedaad | 1799 | } |
3263d5a2 KH |
1800 | return CHARSET_INVALID_CODE (charset); |
1801 | } | |
1bcc1567 | 1802 | |
15c85a88 KH |
1803 | if (! CHARSET_FAST_MAP_REF ((c), charset->fast_map) |
1804 | || c < CHARSET_MIN_CHAR (charset) || c > CHARSET_MAX_CHAR (charset)) | |
1805 | return CHARSET_INVALID_CODE (charset); | |
1bcc1567 | 1806 | |
3263d5a2 | 1807 | if (method == CHARSET_METHOD_MAP) |
3f62427c | 1808 | { |
3263d5a2 | 1809 | Lisp_Object encoder; |
beeedaad | 1810 | Lisp_Object val; |
9b6a601f | 1811 | |
3263d5a2 KH |
1812 | encoder = CHARSET_ENCODER (charset); |
1813 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
b8ebe9dd KH |
1814 | { |
1815 | load_charset (charset, 2); | |
1816 | encoder = CHARSET_ENCODER (charset); | |
1817 | } | |
1818 | if (CHAR_TABLE_P (encoder)) | |
ecca2aad KH |
1819 | { |
1820 | val = CHAR_TABLE_REF (encoder, c); | |
1821 | if (NILP (val)) | |
1822 | return CHARSET_INVALID_CODE (charset); | |
1823 | code = XINT (val); | |
1824 | if (! CHARSET_COMPACT_CODES_P (charset)) | |
1825 | code = INDEX_TO_CODE_POINT (charset, code); | |
1826 | } | |
1827 | else | |
1828 | { | |
1829 | code = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
51b59d79 | 1830 | code = INDEX_TO_CODE_POINT (charset, code); |
ecca2aad | 1831 | } |
3263d5a2 | 1832 | } |
820ee249 | 1833 | else /* method == CHARSET_METHOD_OFFSET */ |
beeedaad | 1834 | { |
ecca2aad KH |
1835 | int code_index = c - CHARSET_CODE_OFFSET (charset); |
1836 | ||
1837 | code = INDEX_TO_CODE_POINT (charset, code_index); | |
3f62427c | 1838 | } |
8ac5a9cc | 1839 | |
3263d5a2 | 1840 | return code; |
4ed46869 KH |
1841 | } |
1842 | ||
4ed46869 | 1843 | |
3263d5a2 KH |
1844 | DEFUN ("decode-char", Fdecode_char, Sdecode_char, 2, 3, 0, |
1845 | doc: /* Decode the pair of CHARSET and CODE-POINT into a character. | |
1846 | Return nil if CODE-POINT is not valid in CHARSET. | |
4ed46869 | 1847 | |
3263d5a2 | 1848 | CODE-POINT may be a cons (HIGHER-16-BIT-VALUE . LOWER-16-BIT-VALUE). |
859f2b3c | 1849 | |
3263d5a2 | 1850 | Optional argument RESTRICTION specifies a way to map the pair of CCS |
d0cf2d48 | 1851 | and CODE-POINT to a character. Currently not supported and just ignored. */) |
5842a27b | 1852 | (Lisp_Object charset, Lisp_Object code_point, Lisp_Object restriction) |
4ed46869 | 1853 | { |
3263d5a2 KH |
1854 | int c, id; |
1855 | unsigned code; | |
1856 | struct charset *charsetp; | |
859f2b3c | 1857 | |
3263d5a2 KH |
1858 | CHECK_CHARSET_GET_ID (charset, id); |
1859 | if (CONSP (code_point)) | |
1860 | { | |
8f924df7 KH |
1861 | CHECK_NATNUM_CAR (code_point); |
1862 | CHECK_NATNUM_CDR (code_point); | |
69f8de5b | 1863 | code = (XINT (XCAR (code_point)) << 16) | (XINT (XCDR (code_point))); |
3263d5a2 | 1864 | } |
4ed46869 KH |
1865 | else |
1866 | { | |
3263d5a2 KH |
1867 | CHECK_NATNUM (code_point); |
1868 | code = XINT (code_point); | |
4ed46869 | 1869 | } |
3263d5a2 KH |
1870 | charsetp = CHARSET_FROM_ID (id); |
1871 | c = DECODE_CHAR (charsetp, code); | |
1872 | return (c >= 0 ? make_number (c) : Qnil); | |
4ed46869 KH |
1873 | } |
1874 | ||
859f2b3c | 1875 | |
3263d5a2 KH |
1876 | DEFUN ("encode-char", Fencode_char, Sencode_char, 2, 3, 0, |
1877 | doc: /* Encode the character CH into a code-point of CHARSET. | |
1878 | Return nil if CHARSET doesn't include CH. | |
17e7ef1b | 1879 | |
d0cf2d48 | 1880 | Optional argument RESTRICTION specifies a way to map CH to a |
3263d5a2 | 1881 | code-point in CCS. Currently not supported and just ignored. */) |
5842a27b | 1882 | (Lisp_Object ch, Lisp_Object charset, Lisp_Object restriction) |
4ed46869 | 1883 | { |
16fed1fc | 1884 | int id; |
3263d5a2 KH |
1885 | unsigned code; |
1886 | struct charset *charsetp; | |
046b1f03 | 1887 | |
3263d5a2 KH |
1888 | CHECK_CHARSET_GET_ID (charset, id); |
1889 | CHECK_NATNUM (ch); | |
3263d5a2 | 1890 | charsetp = CHARSET_FROM_ID (id); |
16fed1fc | 1891 | code = ENCODE_CHAR (charsetp, XINT (ch)); |
3263d5a2 KH |
1892 | if (code == CHARSET_INVALID_CODE (charsetp)) |
1893 | return Qnil; | |
1894 | if (code > 0x7FFFFFF) | |
1895 | return Fcons (make_number (code >> 16), make_number (code & 0xFFFF)); | |
1896 | return make_number (code); | |
beeedaad KH |
1897 | } |
1898 | ||
beeedaad | 1899 | |
b121a744 KH |
1900 | DEFUN ("make-char", Fmake_char, Smake_char, 1, 5, 0, |
1901 | doc: | |
1902 | /* Return a character of CHARSET whose position codes are CODEn. | |
1903 | ||
1904 | CODE1 through CODE4 are optional, but if you don't supply sufficient | |
1905 | position codes, it is assumed that the minimum code in each dimension | |
04c2f2c5 | 1906 | is specified. */) |
5842a27b | 1907 | (Lisp_Object charset, Lisp_Object code1, Lisp_Object code2, Lisp_Object code3, Lisp_Object code4) |
beeedaad | 1908 | { |
3263d5a2 KH |
1909 | int id, dimension; |
1910 | struct charset *charsetp; | |
b121a744 KH |
1911 | unsigned code; |
1912 | int c; | |
87b089ad | 1913 | |
3263d5a2 KH |
1914 | CHECK_CHARSET_GET_ID (charset, id); |
1915 | charsetp = CHARSET_FROM_ID (id); | |
4ed46869 | 1916 | |
b121a744 KH |
1917 | dimension = CHARSET_DIMENSION (charsetp); |
1918 | if (NILP (code1)) | |
d47073ca KH |
1919 | code = (CHARSET_ASCII_COMPATIBLE_P (charsetp) |
1920 | ? 0 : CHARSET_MIN_CODE (charsetp)); | |
3263d5a2 | 1921 | else |
859f2b3c | 1922 | { |
b121a744 KH |
1923 | CHECK_NATNUM (code1); |
1924 | if (XFASTINT (code1) >= 0x100) | |
1925 | args_out_of_range (make_number (0xFF), code1); | |
1926 | code = XFASTINT (code1); | |
859f2b3c | 1927 | |
b0a1e45e | 1928 | if (dimension > 1) |
beeedaad | 1929 | { |
b121a744 | 1930 | code <<= 8; |
b0a1e45e KH |
1931 | if (NILP (code2)) |
1932 | code |= charsetp->code_space[(dimension - 2) * 4]; | |
beeedaad | 1933 | else |
b121a744 | 1934 | { |
b0a1e45e KH |
1935 | CHECK_NATNUM (code2); |
1936 | if (XFASTINT (code2) >= 0x100) | |
1937 | args_out_of_range (make_number (0xFF), code2); | |
1938 | code |= XFASTINT (code2); | |
b121a744 | 1939 | } |
99529c2c | 1940 | |
b0a1e45e | 1941 | if (dimension > 2) |
b121a744 KH |
1942 | { |
1943 | code <<= 8; | |
b0a1e45e KH |
1944 | if (NILP (code3)) |
1945 | code |= charsetp->code_space[(dimension - 3) * 4]; | |
b121a744 KH |
1946 | else |
1947 | { | |
b0a1e45e KH |
1948 | CHECK_NATNUM (code3); |
1949 | if (XFASTINT (code3) >= 0x100) | |
1950 | args_out_of_range (make_number (0xFF), code3); | |
1951 | code |= XFASTINT (code3); | |
1952 | } | |
1953 | ||
1954 | if (dimension > 3) | |
1955 | { | |
1956 | code <<= 8; | |
1957 | if (NILP (code4)) | |
1958 | code |= charsetp->code_space[0]; | |
1959 | else | |
1960 | { | |
1961 | CHECK_NATNUM (code4); | |
1962 | if (XFASTINT (code4) >= 0x100) | |
1963 | args_out_of_range (make_number (0xFF), code4); | |
1964 | code |= XFASTINT (code4); | |
1965 | } | |
b121a744 KH |
1966 | } |
1967 | } | |
beeedaad | 1968 | } |
859f2b3c | 1969 | } |
beeedaad | 1970 | |
b121a744 KH |
1971 | if (CHARSET_ISO_FINAL (charsetp) >= 0) |
1972 | code &= 0x7F7F7F7F; | |
1973 | c = DECODE_CHAR (charsetp, code); | |
1974 | if (c < 0) | |
1975 | error ("Invalid code(s)"); | |
3263d5a2 | 1976 | return make_number (c); |
4ed46869 KH |
1977 | } |
1978 | ||
beeedaad | 1979 | |
3263d5a2 KH |
1980 | /* Return the first charset in CHARSET_LIST that contains C. |
1981 | CHARSET_LIST is a list of charset IDs. If it is nil, use | |
1982 | Vcharset_ordered_list. */ | |
beeedaad | 1983 | |
3263d5a2 | 1984 | struct charset * |
971de7fb | 1985 | char_charset (int c, Lisp_Object charset_list, unsigned int *code_return) |
2e344af3 | 1986 | { |
8a1816bb KH |
1987 | int maybe_null = 0; |
1988 | ||
3263d5a2 KH |
1989 | if (NILP (charset_list)) |
1990 | charset_list = Vcharset_ordered_list; | |
8a1816bb KH |
1991 | else |
1992 | maybe_null = 1; | |
beeedaad | 1993 | |
6c652beb | 1994 | while (CONSP (charset_list)) |
2e344af3 | 1995 | { |
3263d5a2 KH |
1996 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (charset_list))); |
1997 | unsigned code = ENCODE_CHAR (charset, c); | |
beeedaad | 1998 | |
3263d5a2 | 1999 | if (code != CHARSET_INVALID_CODE (charset)) |
beeedaad | 2000 | { |
3263d5a2 KH |
2001 | if (code_return) |
2002 | *code_return = code; | |
2003 | return charset; | |
3f62427c | 2004 | } |
3263d5a2 | 2005 | charset_list = XCDR (charset_list); |
c0be27fd KH |
2006 | if (! maybe_null |
2007 | && c <= MAX_UNICODE_CHAR | |
2008 | && EQ (charset_list, Vcharset_non_preferred_head)) | |
6c652beb | 2009 | return CHARSET_FROM_ID (charset_unicode); |
3f62427c | 2010 | } |
8a1816bb KH |
2011 | return (maybe_null ? NULL |
2012 | : c <= MAX_5_BYTE_CHAR ? CHARSET_FROM_ID (charset_emacs) | |
6a9c90ec | 2013 | : CHARSET_FROM_ID (charset_eight_bit)); |
3f62427c KH |
2014 | } |
2015 | ||
2e344af3 | 2016 | |
3263d5a2 | 2017 | DEFUN ("split-char", Fsplit_char, Ssplit_char, 1, 1, 0, |
3cc67a4d | 2018 | doc: |
d0cf2d48 | 2019 | /*Return list of charset and one to four position-codes of CH. |
3cc67a4d KH |
2020 | The charset is decided by the current priority order of charsets. |
2021 | A position-code is a byte value of each dimension of the code-point of | |
d0cf2d48 | 2022 | CH in the charset. */) |
5842a27b | 2023 | (Lisp_Object ch) |
4ed46869 | 2024 | { |
3263d5a2 KH |
2025 | struct charset *charset; |
2026 | int c, dimension; | |
2027 | unsigned code; | |
4ed46869 KH |
2028 | Lisp_Object val; |
2029 | ||
3263d5a2 KH |
2030 | CHECK_CHARACTER (ch); |
2031 | c = XFASTINT (ch); | |
2032 | charset = CHAR_CHARSET (c); | |
2033 | if (! charset) | |
3cc67a4d | 2034 | abort (); |
3263d5a2 KH |
2035 | code = ENCODE_CHAR (charset, c); |
2036 | if (code == CHARSET_INVALID_CODE (charset)) | |
2037 | abort (); | |
2038 | dimension = CHARSET_DIMENSION (charset); | |
3cc67a4d KH |
2039 | for (val = Qnil; dimension > 0; dimension--) |
2040 | { | |
2041 | val = Fcons (make_number (code & 0xFF), val); | |
2042 | code >>= 8; | |
2043 | } | |
3263d5a2 | 2044 | return Fcons (CHARSET_NAME (charset), val); |
4ed46869 KH |
2045 | } |
2046 | ||
740f080d | 2047 | |
4cb75c4b KH |
2048 | DEFUN ("char-charset", Fchar_charset, Schar_charset, 1, 2, 0, |
2049 | doc: /* Return the charset of highest priority that contains CH. | |
2050 | If optional 2nd arg RESTRICTION is non-nil, it is a list of charsets | |
2051 | from which to find the charset. It may also be a coding system. In | |
2052 | that case, find the charset from what supported by that coding system. */) | |
5842a27b | 2053 | (Lisp_Object ch, Lisp_Object restriction) |
4ed46869 | 2054 | { |
3263d5a2 | 2055 | struct charset *charset; |
4ed46869 | 2056 | |
3263d5a2 | 2057 | CHECK_CHARACTER (ch); |
4cb75c4b KH |
2058 | if (NILP (restriction)) |
2059 | charset = CHAR_CHARSET (XINT (ch)); | |
2060 | else | |
2061 | { | |
4cb75c4b KH |
2062 | if (CONSP (restriction)) |
2063 | { | |
7a84eee5 KH |
2064 | int c = XFASTINT (ch); |
2065 | ||
2066 | for (; CONSP (restriction); restriction = XCDR (restriction)) | |
4cb75c4b | 2067 | { |
7a84eee5 | 2068 | struct charset *charset; |
4cb75c4b | 2069 | |
7a84eee5 KH |
2070 | CHECK_CHARSET_GET_CHARSET (XCAR (restriction), charset); |
2071 | if (ENCODE_CHAR (charset, c) != CHARSET_INVALID_CODE (charset)) | |
2072 | return XCAR (restriction); | |
4cb75c4b | 2073 | } |
7a84eee5 | 2074 | return Qnil; |
4cb75c4b | 2075 | } |
7a84eee5 KH |
2076 | restriction = coding_system_charset_list (restriction); |
2077 | charset = char_charset (XINT (ch), restriction, NULL); | |
4cb75c4b KH |
2078 | if (! charset) |
2079 | return Qnil; | |
2080 | } | |
3263d5a2 | 2081 | return (CHARSET_NAME (charset)); |
4ed46869 KH |
2082 | } |
2083 | ||
17e7ef1b | 2084 | |
3263d5a2 KH |
2085 | DEFUN ("charset-after", Fcharset_after, Scharset_after, 0, 1, 0, |
2086 | doc: /* | |
2087 | Return charset of a character in the current buffer at position POS. | |
2088 | If POS is nil, it defauls to the current point. | |
2089 | If POS is out of range, the value is nil. */) | |
5842a27b | 2090 | (Lisp_Object pos) |
2e344af3 | 2091 | { |
3263d5a2 KH |
2092 | Lisp_Object ch; |
2093 | struct charset *charset; | |
046b1f03 | 2094 | |
3263d5a2 KH |
2095 | ch = Fchar_after (pos); |
2096 | if (! INTEGERP (ch)) | |
2097 | return ch; | |
2098 | charset = CHAR_CHARSET (XINT (ch)); | |
2099 | return (CHARSET_NAME (charset)); | |
6ae1f27e | 2100 | } |
9036eb45 | 2101 | |
87b089ad | 2102 | |
3263d5a2 KH |
2103 | DEFUN ("iso-charset", Fiso_charset, Siso_charset, 3, 3, 0, |
2104 | doc: /* | |
2105 | Return charset of ISO's specification DIMENSION, CHARS, and FINAL-CHAR. | |
2106 | ||
2107 | ISO 2022's designation sequence (escape sequence) distinguishes charsets | |
2108 | by their DIMENSION, CHARS, and FINAL-CHAR, | |
d0cf2d48 | 2109 | whereas Emacs distinguishes them by charset symbol. |
3263d5a2 KH |
2110 | See the documentation of the function `charset-info' for the meanings of |
2111 | DIMENSION, CHARS, and FINAL-CHAR. */) | |
5842a27b | 2112 | (Lisp_Object dimension, Lisp_Object chars, Lisp_Object final_char) |
6ae1f27e | 2113 | { |
3263d5a2 | 2114 | int id; |
82215ce9 | 2115 | int chars_flag; |
a8a35e61 | 2116 | |
3263d5a2 | 2117 | check_iso_charset_parameter (dimension, chars, final_char); |
82215ce9 KH |
2118 | chars_flag = XFASTINT (chars) == 96; |
2119 | id = ISO_CHARSET_TABLE (XFASTINT (dimension), chars_flag, | |
3263d5a2 KH |
2120 | XFASTINT (final_char)); |
2121 | return (id >= 0 ? CHARSET_NAME (CHARSET_FROM_ID (id)) : Qnil); | |
046b1f03 RS |
2122 | } |
2123 | ||
87b089ad | 2124 | |
3263d5a2 KH |
2125 | DEFUN ("clear-charset-maps", Fclear_charset_maps, Sclear_charset_maps, |
2126 | 0, 0, 0, | |
2127 | doc: /* | |
ecca2aad KH |
2128 | Internal use only. |
2129 | Clear temporary charset mapping tables. | |
2130 | It should be called only from temacs invoked for dumping. */) | |
5842a27b | 2131 | (void) |
87b089ad | 2132 | { |
ecca2aad | 2133 | if (temp_charset_work) |
87b089ad | 2134 | { |
ecca2aad KH |
2135 | free (temp_charset_work); |
2136 | temp_charset_work = NULL; | |
2e344af3 | 2137 | } |
2e344af3 | 2138 | |
ecca2aad KH |
2139 | if (CHAR_TABLE_P (Vchar_unify_table)) |
2140 | Foptimize_char_table (Vchar_unify_table, Qnil); | |
740f080d | 2141 | |
3263d5a2 | 2142 | return Qnil; |
740f080d KH |
2143 | } |
2144 | ||
8ddf5e57 DL |
2145 | DEFUN ("charset-priority-list", Fcharset_priority_list, |
2146 | Scharset_priority_list, 0, 1, 0, | |
2147 | doc: /* Return the list of charsets ordered by priority. | |
2148 | HIGHESTP non-nil means just return the highest priority one. */) | |
5842a27b | 2149 | (Lisp_Object highestp) |
2e344af3 | 2150 | { |
8ddf5e57 | 2151 | Lisp_Object val = Qnil, list = Vcharset_ordered_list; |
2e344af3 | 2152 | |
8ddf5e57 | 2153 | if (!NILP (highestp)) |
16fed1fc | 2154 | return CHARSET_NAME (CHARSET_FROM_ID (XINT (Fcar (list)))); |
2e344af3 | 2155 | |
8ddf5e57 | 2156 | while (!NILP (list)) |
2e344af3 | 2157 | { |
16fed1fc | 2158 | val = Fcons (CHARSET_NAME (CHARSET_FROM_ID (XINT (XCAR (list)))), val); |
8ddf5e57 | 2159 | list = XCDR (list); |
2e344af3 | 2160 | } |
8ddf5e57 | 2161 | return Fnreverse (val); |
2e344af3 KH |
2162 | } |
2163 | ||
8ddf5e57 DL |
2164 | DEFUN ("set-charset-priority", Fset_charset_priority, Sset_charset_priority, |
2165 | 1, MANY, 0, | |
2166 | doc: /* Assign higher priority to the charsets given as arguments. | |
2167 | usage: (set-charset-priority &rest charsets) */) | |
5842a27b | 2168 | (int nargs, Lisp_Object *args) |
4ed46869 | 2169 | { |
af7c60ca | 2170 | Lisp_Object new_head, old_list, arglist[2]; |
321c819c | 2171 | Lisp_Object list_2022, list_emacs_mule; |
16fed1fc | 2172 | int i, id; |
4ed46869 | 2173 | |
8ddf5e57 | 2174 | old_list = Fcopy_sequence (Vcharset_ordered_list); |
af7c60ca | 2175 | new_head = Qnil; |
8ddf5e57 | 2176 | for (i = 0; i < nargs; i++) |
4ed46869 | 2177 | { |
8ddf5e57 | 2178 | CHECK_CHARSET_GET_ID (args[i], id); |
af7c60ca KH |
2179 | if (! NILP (Fmemq (make_number (id), old_list))) |
2180 | { | |
2181 | old_list = Fdelq (make_number (id), old_list); | |
2182 | new_head = Fcons (make_number (id), new_head); | |
2183 | } | |
5729c92f | 2184 | } |
8ddf5e57 | 2185 | arglist[0] = Fnreverse (new_head); |
6a9c90ec | 2186 | arglist[1] = Vcharset_non_preferred_head = old_list; |
8ddf5e57 | 2187 | Vcharset_ordered_list = Fnconc (2, arglist); |
dbbb237d | 2188 | charset_ordered_list_tick++; |
5729c92f | 2189 | |
6809ca75 | 2190 | charset_unibyte = -1; |
321c819c | 2191 | for (old_list = Vcharset_ordered_list, list_2022 = list_emacs_mule = Qnil; |
d017b41e | 2192 | CONSP (old_list); old_list = XCDR (old_list)) |
5729c92f | 2193 | { |
e77415b0 | 2194 | if (! NILP (Fmemq (XCAR (old_list), Viso_2022_charset_list))) |
321c819c KH |
2195 | list_2022 = Fcons (XCAR (old_list), list_2022); |
2196 | if (! NILP (Fmemq (XCAR (old_list), Vemacs_mule_charset_list))) | |
2197 | list_emacs_mule = Fcons (XCAR (old_list), list_emacs_mule); | |
6809ca75 KH |
2198 | if (charset_unibyte < 0) |
2199 | { | |
2200 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (old_list))); | |
2201 | ||
2202 | if (CHARSET_DIMENSION (charset) == 1 | |
2203 | && CHARSET_ASCII_COMPATIBLE_P (charset) | |
2204 | && CHARSET_MAX_CHAR (charset) >= 0x80) | |
2205 | charset_unibyte = CHARSET_ID (charset); | |
2206 | } | |
4ed46869 | 2207 | } |
321c819c KH |
2208 | Viso_2022_charset_list = Fnreverse (list_2022); |
2209 | Vemacs_mule_charset_list = Fnreverse (list_emacs_mule); | |
6809ca75 KH |
2210 | if (charset_unibyte < 0) |
2211 | charset_unibyte = charset_iso_8859_1; | |
4ed46869 | 2212 | |
8ddf5e57 | 2213 | return Qnil; |
4ed46869 KH |
2214 | } |
2215 | ||
d5b33309 KH |
2216 | DEFUN ("charset-id-internal", Fcharset_id_internal, Scharset_id_internal, |
2217 | 0, 1, 0, | |
2218 | doc: /* Internal use only. | |
2219 | Return charset identification number of CHARSET. */) | |
5842a27b | 2220 | (Lisp_Object charset) |
4ed46869 | 2221 | { |
d5b33309 | 2222 | int id; |
4ed46869 | 2223 | |
d5b33309 KH |
2224 | CHECK_CHARSET_GET_ID (charset, id); |
2225 | return make_number (id); | |
4ed46869 KH |
2226 | } |
2227 | ||
7a84eee5 KH |
2228 | struct charset_sort_data |
2229 | { | |
2230 | Lisp_Object charset; | |
2231 | int id; | |
2232 | int priority; | |
2233 | }; | |
2234 | ||
2235 | static int | |
2236 | charset_compare (const void *d1, const void *d2) | |
2237 | { | |
2238 | const struct charset_sort_data *data1 = d1, *data2 = d2; | |
2239 | return (data1->priority - data2->priority); | |
2240 | } | |
2241 | ||
2242 | DEFUN ("sort-charsets", Fsort_charsets, Ssort_charsets, 1, 1, 0, | |
2243 | doc: /* Sort charset list CHARSETS by a priority of each charset. | |
2244 | Return the sorted list. CHARSETS is modified by side effects. | |
2245 | See also `charset-priority-list' and `set-charset-priority'. */) | |
2246 | (Lisp_Object charsets) | |
2247 | { | |
2248 | Lisp_Object len = Flength (charsets); | |
2249 | int n = XFASTINT (len), i, j, done; | |
2250 | Lisp_Object tail, elt, attrs; | |
2251 | struct charset_sort_data *sort_data; | |
2252 | int id, min_id, max_id; | |
2253 | USE_SAFE_ALLOCA; | |
2254 | ||
2255 | if (n == 0) | |
2256 | return Qnil; | |
2257 | SAFE_ALLOCA (sort_data, struct charset_sort_data *, sizeof (*sort_data) * n); | |
2258 | for (tail = charsets, i = 0; CONSP (tail); tail = XCDR (tail), i++) | |
2259 | { | |
2260 | elt = XCAR (tail); | |
2261 | CHECK_CHARSET_GET_ATTR (elt, attrs); | |
2262 | sort_data[i].charset = elt; | |
2263 | sort_data[i].id = id = XINT (CHARSET_ATTR_ID (attrs)); | |
2264 | if (i == 0) | |
2265 | min_id = max_id = id; | |
2266 | else if (id < min_id) | |
2267 | min_id = id; | |
2268 | else if (id > max_id) | |
2269 | max_id = id; | |
2270 | } | |
2271 | for (done = 0, tail = Vcharset_ordered_list, i = 0; | |
2272 | done < n && CONSP (tail); tail = XCDR (tail), i++) | |
2273 | { | |
2274 | elt = XCAR (tail); | |
2275 | id = XFASTINT (elt); | |
2276 | if (id >= min_id && id <= max_id) | |
2277 | for (j = 0; j < n; j++) | |
2278 | if (sort_data[j].id == id) | |
2279 | { | |
2280 | sort_data[j].priority = i; | |
2281 | done++; | |
2282 | } | |
2283 | } | |
2284 | qsort (sort_data, n, sizeof *sort_data, charset_compare); | |
2285 | for (i = 0, tail = charsets; CONSP (tail); tail = XCDR (tail), i++) | |
2286 | XSETCAR (tail, sort_data[i].charset); | |
2287 | SAFE_FREE (); | |
2288 | return charsets; | |
2289 | } | |
2290 | ||
4ed46869 | 2291 | \f |
3263d5a2 | 2292 | void |
971de7fb | 2293 | init_charset (void) |
4ed46869 | 2294 | { |
c8f94403 GM |
2295 | Lisp_Object tempdir; |
2296 | tempdir = Fexpand_file_name (build_string ("charsets"), Vdata_directory); | |
51b59d79 | 2297 | if (access (SSDATA (tempdir), 0) < 0) |
c8f94403 GM |
2298 | { |
2299 | dir_warning ("Error: charsets directory (%s) does not exist.\n\ | |
2300 | Emacs will not function correctly without the character map files.\n\ | |
2301 | Please check your installation!\n", | |
2302 | tempdir); | |
2303 | /* TODO should this be a fatal error? (Bug#909) */ | |
2304 | } | |
2305 | ||
2306 | Vcharset_map_path = Fcons (tempdir, Qnil); | |
4ed46869 KH |
2307 | } |
2308 | ||
4ed46869 | 2309 | |
dfcf069d | 2310 | void |
971de7fb | 2311 | init_charset_once (void) |
4ed46869 KH |
2312 | { |
2313 | int i, j, k; | |
2314 | ||
3263d5a2 KH |
2315 | for (i = 0; i < ISO_MAX_DIMENSION; i++) |
2316 | for (j = 0; j < ISO_MAX_CHARS; j++) | |
2317 | for (k = 0; k < ISO_MAX_FINAL; k++) | |
2318 | iso_charset_table[i][j][k] = -1; | |
4ed46869 | 2319 | |
60383934 | 2320 | for (i = 0; i < 256; i++) |
b84ae584 | 2321 | emacs_mule_charset[i] = -1; |
4ed46869 | 2322 | |
7c7dceee KH |
2323 | charset_jisx0201_roman = -1; |
2324 | charset_jisx0208_1978 = -1; | |
2325 | charset_jisx0208 = -1; | |
d32320c4 | 2326 | charset_ksc5601 = -1; |
4ed46869 KH |
2327 | } |
2328 | ||
2329 | #ifdef emacs | |
2330 | ||
dfcf069d | 2331 | void |
971de7fb | 2332 | syms_of_charset (void) |
4ed46869 | 2333 | { |
3263d5a2 KH |
2334 | DEFSYM (Qcharsetp, "charsetp"); |
2335 | ||
2336 | DEFSYM (Qascii, "ascii"); | |
2337 | DEFSYM (Qunicode, "unicode"); | |
6c652beb | 2338 | DEFSYM (Qemacs, "emacs"); |
2fe1edd1 | 2339 | DEFSYM (Qeight_bit, "eight-bit"); |
3263d5a2 KH |
2340 | DEFSYM (Qiso_8859_1, "iso-8859-1"); |
2341 | ||
2342 | DEFSYM (Qgl, "gl"); | |
2343 | DEFSYM (Qgr, "gr"); | |
2344 | ||
3263d5a2 KH |
2345 | staticpro (&Vcharset_ordered_list); |
2346 | Vcharset_ordered_list = Qnil; | |
2347 | ||
2348 | staticpro (&Viso_2022_charset_list); | |
2349 | Viso_2022_charset_list = Qnil; | |
2350 | ||
2351 | staticpro (&Vemacs_mule_charset_list); | |
2352 | Vemacs_mule_charset_list = Qnil; | |
2353 | ||
3943ed76 | 2354 | /* Don't staticpro them here. It's done in syms_of_fns. */ |
088dcc3e DN |
2355 | QCtest = intern_c_string (":test"); |
2356 | Qeq = intern_c_string ("eq"); | |
3943ed76 | 2357 | |
3263d5a2 | 2358 | staticpro (&Vcharset_hash_table); |
8f924df7 KH |
2359 | { |
2360 | Lisp_Object args[2]; | |
2361 | args[0] = QCtest; | |
2362 | args[1] = Qeq; | |
2363 | Vcharset_hash_table = Fmake_hash_table (2, args); | |
2364 | } | |
3263d5a2 KH |
2365 | |
2366 | charset_table_size = 128; | |
2367 | charset_table = ((struct charset *) | |
2368 | xmalloc (sizeof (struct charset) * charset_table_size)); | |
2369 | charset_table_used = 0; | |
2370 | ||
3263d5a2 KH |
2371 | defsubr (&Scharsetp); |
2372 | defsubr (&Smap_charset_chars); | |
2373 | defsubr (&Sdefine_charset_internal); | |
2374 | defsubr (&Sdefine_charset_alias); | |
3263d5a2 KH |
2375 | defsubr (&Scharset_plist); |
2376 | defsubr (&Sset_charset_plist); | |
2377 | defsubr (&Sunify_charset); | |
3fac5a51 | 2378 | defsubr (&Sget_unused_iso_final_char); |
4ed46869 KH |
2379 | defsubr (&Sdeclare_equiv_charset); |
2380 | defsubr (&Sfind_charset_region); | |
2381 | defsubr (&Sfind_charset_string); | |
3263d5a2 KH |
2382 | defsubr (&Sdecode_char); |
2383 | defsubr (&Sencode_char); | |
4ed46869 | 2384 | defsubr (&Ssplit_char); |
3263d5a2 | 2385 | defsubr (&Smake_char); |
4ed46869 | 2386 | defsubr (&Schar_charset); |
90d7b74e | 2387 | defsubr (&Scharset_after); |
4ed46869 | 2388 | defsubr (&Siso_charset); |
3263d5a2 | 2389 | defsubr (&Sclear_charset_maps); |
8ddf5e57 DL |
2390 | defsubr (&Scharset_priority_list); |
2391 | defsubr (&Sset_charset_priority); | |
d5b33309 | 2392 | defsubr (&Scharset_id_internal); |
7a84eee5 | 2393 | defsubr (&Ssort_charsets); |
3263d5a2 | 2394 | |
29208e82 | 2395 | DEFVAR_LISP ("charset-map-path", Vcharset_map_path, |
6f3122a7 | 2396 | doc: /* *List of directories to search for charset map files. */); |
4beef065 | 2397 | Vcharset_map_path = Qnil; |
4ed46869 | 2398 | |
29208e82 | 2399 | DEFVAR_BOOL ("inhibit-load-charset-map", inhibit_load_charset_map, |
ecca2aad KH |
2400 | doc: /* Inhibit loading of charset maps. Used when dumping Emacs. */); |
2401 | inhibit_load_charset_map = 0; | |
2402 | ||
29208e82 | 2403 | DEFVAR_LISP ("charset-list", Vcharset_list, |
528623a0 | 2404 | doc: /* List of all charsets ever defined. */); |
3263d5a2 KH |
2405 | Vcharset_list = Qnil; |
2406 | ||
29208e82 | 2407 | DEFVAR_LISP ("current-iso639-language", Vcurrent_iso639_language, |
6a9c90ec KH |
2408 | doc: /* ISO639 language mnemonic symbol for the current language environment. |
2409 | If the current language environment is for multiple languages (e.g. "Latin-1"), | |
2410 | the value may be a list of mnemonics. */); | |
2411 | Vcurrent_iso639_language = Qnil; | |
2412 | ||
2fe1edd1 KH |
2413 | charset_ascii |
2414 | = define_charset_internal (Qascii, 1, "\x00\x7F\x00\x00\x00\x00", | |
2415 | 0, 127, 'B', -1, 0, 1, 0, 0); | |
14e3d523 KH |
2416 | charset_iso_8859_1 |
2417 | = define_charset_internal (Qiso_8859_1, 1, "\x00\xFF\x00\x00\x00\x00", | |
2418 | 0, 255, -1, -1, -1, 1, 0, 0); | |
2fe1edd1 | 2419 | charset_unicode |
73fbf2d9 | 2420 | = define_charset_internal (Qunicode, 3, "\x00\xFF\x00\xFF\x00\x10", |
2fe1edd1 | 2421 | 0, MAX_UNICODE_CHAR, -1, 0, -1, 1, 0, 0); |
6c652beb KH |
2422 | charset_emacs |
2423 | = define_charset_internal (Qemacs, 3, "\x00\xFF\x00\xFF\x00\x3F", | |
2424 | 0, MAX_5_BYTE_CHAR, -1, 0, -1, 1, 1, 0); | |
2fe1edd1 KH |
2425 | charset_eight_bit |
2426 | = define_charset_internal (Qeight_bit, 1, "\x80\xFF\x00\x00\x00\x00", | |
880820fe | 2427 | 128, 255, -1, 0, -1, 0, 1, |
2fe1edd1 | 2428 | MAX_5_BYTE_CHAR + 1); |
6809ca75 | 2429 | charset_unibyte = charset_iso_8859_1; |
4ed46869 KH |
2430 | } |
2431 | ||
2432 | #endif /* emacs */ |