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> | |
726929c4 | 32 | #include <limits.h> |
4ed46869 | 33 | #include <sys/types.h> |
d7306fe6 | 34 | #include <setjmp.h> |
4ed46869 | 35 | #include "lisp.h" |
3263d5a2 | 36 | #include "character.h" |
4ed46869 KH |
37 | #include "charset.h" |
38 | #include "coding.h" | |
fc6b09bf | 39 | #include "disptab.h" |
3263d5a2 | 40 | #include "buffer.h" |
4ed46869 | 41 | |
04c2f2c5 | 42 | /*** GENERAL NOTES on CODED CHARACTER SETS (CHARSETS) *** |
4ed46869 | 43 | |
3263d5a2 | 44 | A coded character set ("charset" hereafter) is a meaningful |
04c2f2c5 | 45 | collection (i.e. language, culture, functionality, etc.) of |
3263d5a2 | 46 | characters. Emacs handles multiple charsets at once. In Emacs Lisp |
04c2f2c5 DL |
47 | code, a charset is represented by a symbol. In C code, a charset is |
48 | represented by its ID number or by a pointer to a struct charset. | |
4ed46869 | 49 | |
3263d5a2 KH |
50 | The actual information about each charset is stored in two places. |
51 | Lispy information is stored in the hash table Vcharset_hash_table as | |
52 | a vector (charset attributes). The other information is stored in | |
04c2f2c5 | 53 | charset_table as a struct charset. |
4ed46869 | 54 | |
3263d5a2 | 55 | */ |
4ed46869 | 56 | |
3263d5a2 KH |
57 | /* Hash table that contains attributes of each charset. Keys are |
58 | charset symbols, and values are vectors of charset attributes. */ | |
59 | Lisp_Object Vcharset_hash_table; | |
4ed46869 | 60 | |
3263d5a2 KH |
61 | /* Table of struct charset. */ |
62 | struct charset *charset_table; | |
4ed46869 | 63 | |
3263d5a2 | 64 | static int charset_table_size; |
5af5dd92 | 65 | static int charset_table_used; |
4ed46869 | 66 | |
3263d5a2 | 67 | Lisp_Object Qcharsetp; |
4ed46869 | 68 | |
3263d5a2 KH |
69 | /* Special charset symbols. */ |
70 | Lisp_Object Qascii; | |
2fe1edd1 | 71 | Lisp_Object Qeight_bit; |
3263d5a2 KH |
72 | Lisp_Object Qiso_8859_1; |
73 | Lisp_Object Qunicode; | |
6c652beb | 74 | Lisp_Object Qemacs; |
4ed46869 | 75 | |
3263d5a2 KH |
76 | /* The corresponding charsets. */ |
77 | int charset_ascii; | |
2fe1edd1 | 78 | int charset_eight_bit; |
3263d5a2 KH |
79 | int charset_iso_8859_1; |
80 | int charset_unicode; | |
6c652beb | 81 | int charset_emacs; |
b0e3cf2b | 82 | |
7c7dceee KH |
83 | /* The other special charsets. */ |
84 | int charset_jisx0201_roman; | |
85 | int charset_jisx0208_1978; | |
86 | int charset_jisx0208; | |
d32320c4 | 87 | int charset_ksc5601; |
c1a08b4c | 88 | |
3263d5a2 KH |
89 | /* Value of charset attribute `charset-iso-plane'. */ |
90 | Lisp_Object Qgl, Qgr; | |
c1a08b4c | 91 | |
d1a04588 KH |
92 | /* Charset of unibyte characters. */ |
93 | int charset_unibyte; | |
4ed46869 | 94 | |
3263d5a2 KH |
95 | /* List of charsets ordered by the priority. */ |
96 | Lisp_Object Vcharset_ordered_list; | |
4ed46869 | 97 | |
6a9c90ec KH |
98 | /* Sub-list of Vcharset_ordered_list that contains all non-preferred |
99 | charsets. */ | |
100 | Lisp_Object Vcharset_non_preferred_head; | |
101 | ||
dbbb237d | 102 | /* Incremented everytime we change Vcharset_ordered_list. This is |
64165ae2 | 103 | unsigned short so that it fits in Lisp_Int and never matches |
dbbb237d KH |
104 | -1. */ |
105 | unsigned short charset_ordered_list_tick; | |
4ed46869 | 106 | |
3263d5a2 KH |
107 | /* List of iso-2022 charsets. */ |
108 | Lisp_Object Viso_2022_charset_list; | |
35e623fb | 109 | |
3263d5a2 KH |
110 | /* List of emacs-mule charsets. */ |
111 | Lisp_Object Vemacs_mule_charset_list; | |
112 | ||
b84ae584 | 113 | int emacs_mule_charset[256]; |
4ed46869 KH |
114 | |
115 | /* Mapping table from ISO2022's charset (specified by DIMENSION, | |
116 | CHARS, and FINAL-CHAR) to Emacs' charset. */ | |
3263d5a2 KH |
117 | int iso_charset_table[ISO_MAX_DIMENSION][ISO_MAX_CHARS][ISO_MAX_FINAL]; |
118 | ||
69f8de5b KH |
119 | #define CODE_POINT_TO_INDEX(charset, code) \ |
120 | ((charset)->code_linear_p \ | |
121 | ? (code) - (charset)->min_code \ | |
122 | : (((charset)->code_space_mask[(code) >> 24] & 0x8) \ | |
123 | && ((charset)->code_space_mask[((code) >> 16) & 0xFF] & 0x4) \ | |
124 | && ((charset)->code_space_mask[((code) >> 8) & 0xFF] & 0x2) \ | |
125 | && ((charset)->code_space_mask[(code) & 0xFF] & 0x1)) \ | |
126 | ? (((((code) >> 24) - (charset)->code_space[12]) \ | |
127 | * (charset)->code_space[11]) \ | |
128 | + (((((code) >> 16) & 0xFF) - (charset)->code_space[8]) \ | |
129 | * (charset)->code_space[7]) \ | |
130 | + (((((code) >> 8) & 0xFF) - (charset)->code_space[4]) \ | |
131 | * (charset)->code_space[3]) \ | |
820ee249 KH |
132 | + (((code) & 0xFF) - (charset)->code_space[0]) \ |
133 | - ((charset)->char_index_offset)) \ | |
3263d5a2 KH |
134 | : -1) |
135 | ||
136 | ||
137 | /* Convert the character index IDX to code-point CODE for CHARSET. | |
138 | It is assumed that IDX is in a valid range. */ | |
139 | ||
820ee249 KH |
140 | #define INDEX_TO_CODE_POINT(charset, idx) \ |
141 | ((charset)->code_linear_p \ | |
142 | ? (idx) + (charset)->min_code \ | |
143 | : (idx += (charset)->char_index_offset, \ | |
144 | (((charset)->code_space[0] + (idx) % (charset)->code_space[2]) \ | |
145 | | (((charset)->code_space[4] \ | |
146 | + ((idx) / (charset)->code_space[3] % (charset)->code_space[6])) \ | |
147 | << 8) \ | |
148 | | (((charset)->code_space[8] \ | |
149 | + ((idx) / (charset)->code_space[7] % (charset)->code_space[10])) \ | |
150 | << 16) \ | |
151 | | (((charset)->code_space[12] + ((idx) / (charset)->code_space[11])) \ | |
152 | << 24)))) | |
4cf9710d | 153 | |
ecca2aad KH |
154 | /* Structure to hold mapping tables for a charset. Used by temacs |
155 | invoked for dumping. */ | |
8a73a704 | 156 | |
ecca2aad KH |
157 | static struct |
158 | { | |
159 | /* The current charset for which the following tables are setup. */ | |
160 | struct charset *current; | |
161 | ||
162 | /* 1 iff the following table is used for encoder. */ | |
163 | short for_encoder; | |
164 | ||
165 | /* When the following table is used for encoding, mininum and | |
166 | maxinum character of the current charset. */ | |
167 | int min_char, max_char; | |
168 | ||
169 | /* A Unicode character correspoinding to the code indice 0 (i.e. the | |
170 | minimum code-point) of the current charset, or -1 if the code | |
171 | indice 0 is not a Unicode character. This is checked when | |
172 | table.encoder[CHAR] is zero. */ | |
173 | int zero_index_char; | |
174 | ||
175 | union { | |
176 | /* Table mapping code-indices (not code-points) of the current | |
177 | charset to Unicode characters. If decoder[CHAR] is -1, CHAR | |
178 | doesn't belong to the current charset. */ | |
179 | int decoder[0x10000]; | |
180 | /* Table mapping Unicode characters to code-indices of the current | |
181 | charset. The first 0x10000 elements are for BMP (0..0xFFFF), | |
182 | and the last 0x10000 are for SMP (0x10000..0x1FFFF) or SIP | |
183 | (0x20000..0x2FFFF). Note that there is no charset map that | |
184 | uses both SMP and SIP. */ | |
185 | unsigned short encoder[0x20000]; | |
186 | } table; | |
187 | } *temp_charset_work; | |
188 | ||
189 | #define SET_TEMP_CHARSET_WORK_ENCODER(C, CODE) \ | |
190 | do { \ | |
191 | if ((CODE) == 0) \ | |
192 | temp_charset_work->zero_index_char = (C); \ | |
193 | else if ((C) < 0x20000) \ | |
194 | temp_charset_work->table.encoder[(C)] = (CODE); \ | |
195 | else \ | |
196 | temp_charset_work->table.encoder[(C) - 0x10000] = (CODE); \ | |
197 | } while (0) | |
198 | ||
199 | #define GET_TEMP_CHARSET_WORK_ENCODER(C) \ | |
200 | ((C) == temp_charset_work->zero_index_char ? 0 \ | |
201 | : (C) < 0x20000 ? (temp_charset_work->table.encoder[(C)] \ | |
202 | ? (int) temp_charset_work->table.encoder[(C)] : -1) \ | |
203 | : temp_charset_work->table.encoder[(C) - 0x10000] \ | |
204 | ? temp_charset_work->table.encoder[(C) - 0x10000] : -1) | |
205 | ||
206 | #define SET_TEMP_CHARSET_WORK_DECODER(C, CODE) \ | |
207 | (temp_charset_work->table.decoder[(CODE)] = (C)) | |
208 | ||
209 | #define GET_TEMP_CHARSET_WORK_DECODER(CODE) \ | |
210 | (temp_charset_work->table.decoder[(CODE)]) | |
046b1f03 | 211 | \f |
93bcb785 | 212 | |
e9ce014c KH |
213 | /* Set to 1 to warn that a charset map is loaded and thus a buffer |
214 | text and a string data may be relocated. */ | |
3263d5a2 | 215 | int charset_map_loaded; |
4ed46869 | 216 | |
e9ce014c | 217 | struct charset_map_entries |
4ed46869 | 218 | { |
e9ce014c KH |
219 | struct { |
220 | unsigned from, to; | |
221 | int c; | |
222 | } entry[0x10000]; | |
223 | struct charset_map_entries *next; | |
224 | }; | |
225 | ||
ecca2aad KH |
226 | /* Load the mapping information of CHARSET from ENTRIES for |
227 | initializing (CONTROL_FLAG == 0), decoding (CONTROL_FLAG == 1), and | |
228 | encoding (CONTROL_FLAG == 2). | |
229 | ||
230 | If CONTROL_FLAG is 0, setup CHARSET->min_char, CHARSET->max_char, | |
231 | and CHARSET->fast_map. | |
232 | ||
233 | If CONTROL_FLAG is 1, setup the following tables according to | |
234 | CHARSET->method and inhibit_load_charset_map. | |
4cf9710d | 235 | |
ecca2aad KH |
236 | CHARSET->method | inhibit_lcm == 0 | inhibit_lcm == 1 |
237 | ----------------------+--------------------+--------------------------- | |
238 | CHARSET_METHOD_MAP | CHARSET->decoder | temp_charset_work->decoder | |
239 | ----------------------+--------------------+--------------------------- | |
240 | CHARSET_METHOD_OFFSET | Vchar_unify_table | temp_charset_work->decoder | |
8a73a704 | 241 | |
ecca2aad | 242 | If CONTROL_FLAG is 2, setup the following tables. |
93bcb785 | 243 | |
ecca2aad KH |
244 | CHARSET->method | inhibit_lcm == 0 | inhibit_lcm == 1 |
245 | ----------------------+--------------------+--------------------------- | |
246 | CHARSET_METHOD_MAP | CHARSET->encoder | temp_charset_work->encoder | |
247 | ----------------------+--------------------+-------------------------- | |
248 | CHARSET_METHOD_OFFSET | CHARSET->deunifier | temp_charset_work->encoder | |
249 | */ | |
4ed46869 | 250 | |
3263d5a2 | 251 | static void |
971de7fb | 252 | load_charset_map (struct charset *charset, struct charset_map_entries *entries, int n_entries, int control_flag) |
4ed46869 | 253 | { |
89ef49df | 254 | Lisp_Object vec IF_LINT (= Qnil), table IF_LINT (= Qnil); |
3263d5a2 KH |
255 | unsigned max_code = CHARSET_MAX_CODE (charset); |
256 | int ascii_compatible_p = charset->ascii_compatible_p; | |
257 | int min_char, max_char, nonascii_min_char; | |
3263d5a2 | 258 | int i; |
3263d5a2 | 259 | unsigned char *fast_map = charset->fast_map; |
99529c2c | 260 | |
e9ce014c KH |
261 | if (n_entries <= 0) |
262 | return; | |
263 | ||
ecca2aad | 264 | if (control_flag) |
8ac5a9cc | 265 | { |
ecca2aad KH |
266 | if (! inhibit_load_charset_map) |
267 | { | |
268 | if (control_flag == 1) | |
269 | { | |
270 | if (charset->method == CHARSET_METHOD_MAP) | |
271 | { | |
272 | int n = CODE_POINT_TO_INDEX (charset, max_code) + 1; | |
6662e69b | 273 | |
ecca2aad KH |
274 | vec = CHARSET_DECODER (charset) |
275 | = Fmake_vector (make_number (n), make_number (-1)); | |
276 | } | |
277 | else | |
278 | { | |
279 | char_table_set_range (Vchar_unify_table, | |
280 | charset->min_char, charset->max_char, | |
281 | Qnil); | |
282 | } | |
283 | } | |
284 | else | |
285 | { | |
286 | table = Fmake_char_table (Qnil, Qnil); | |
287 | if (charset->method == CHARSET_METHOD_MAP) | |
288 | CHARSET_ENCODER (charset) = table; | |
289 | else | |
290 | CHARSET_DEUNIFIER (charset) = table; | |
291 | } | |
292 | } | |
293 | else | |
294 | { | |
295 | if (! temp_charset_work) | |
546961a9 | 296 | temp_charset_work = xmalloc (sizeof (*temp_charset_work)); |
ecca2aad KH |
297 | if (control_flag == 1) |
298 | { | |
299 | memset (temp_charset_work->table.decoder, -1, | |
300 | sizeof (int) * 0x10000); | |
ecca2aad KH |
301 | } |
302 | else | |
303 | { | |
304 | memset (temp_charset_work->table.encoder, 0, | |
305 | sizeof (unsigned short) * 0x20000); | |
306 | temp_charset_work->zero_index_char = -1; | |
307 | } | |
308 | temp_charset_work->current = charset; | |
309 | temp_charset_work->for_encoder = (control_flag == 2); | |
310 | control_flag += 2; | |
311 | } | |
3263d5a2 | 312 | charset_map_loaded = 1; |
2e344af3 | 313 | } |
6662e69b | 314 | |
e9ce014c | 315 | min_char = max_char = entries->entry[0].c; |
3263d5a2 | 316 | nonascii_min_char = MAX_CHAR; |
e9ce014c | 317 | for (i = 0; i < n_entries; i++) |
2e344af3 | 318 | { |
e9ce014c | 319 | unsigned from, to; |
3b4f4446 KH |
320 | int from_index, to_index; |
321 | int from_c, to_c; | |
e9ce014c | 322 | int idx = i % 0x10000; |
3263d5a2 | 323 | |
e9ce014c KH |
324 | if (i > 0 && idx == 0) |
325 | entries = entries->next; | |
326 | from = entries->entry[idx].from; | |
327 | to = entries->entry[idx].to; | |
3b4f4446 KH |
328 | from_c = entries->entry[idx].c; |
329 | from_index = CODE_POINT_TO_INDEX (charset, from); | |
330 | if (from == to) | |
6662e69b | 331 | { |
3b4f4446 KH |
332 | to_index = from_index; |
333 | to_c = from_c; | |
6662e69b | 334 | } |
3b4f4446 | 335 | else |
6662e69b | 336 | { |
3b4f4446 KH |
337 | to_index = CODE_POINT_TO_INDEX (charset, to); |
338 | to_c = from_c + (to_index - from_index); | |
6662e69b | 339 | } |
3b4f4446 KH |
340 | if (from_index < 0 || to_index < 0) |
341 | continue; | |
3263d5a2 | 342 | |
ecca2aad KH |
343 | if (to_c > max_char) |
344 | max_char = to_c; | |
345 | else if (from_c < min_char) | |
346 | min_char = from_c; | |
6662e69b | 347 | |
ecca2aad KH |
348 | if (control_flag == 1) |
349 | { | |
350 | if (charset->method == CHARSET_METHOD_MAP) | |
351 | for (; from_index <= to_index; from_index++, from_c++) | |
352 | ASET (vec, from_index, make_number (from_c)); | |
353 | else | |
354 | for (; from_index <= to_index; from_index++, from_c++) | |
355 | CHAR_TABLE_SET (Vchar_unify_table, | |
356 | CHARSET_CODE_OFFSET (charset) + from_index, | |
357 | make_number (from_c)); | |
358 | } | |
359 | else if (control_flag == 2) | |
360 | { | |
361 | if (charset->method == CHARSET_METHOD_MAP | |
362 | && CHARSET_COMPACT_CODES_P (charset)) | |
363 | for (; from_index <= to_index; from_index++, from_c++) | |
364 | { | |
365 | unsigned code = INDEX_TO_CODE_POINT (charset, from_index); | |
366 | ||
367 | if (NILP (CHAR_TABLE_REF (table, from_c))) | |
368 | CHAR_TABLE_SET (table, from_c, make_number (code)); | |
369 | } | |
370 | else | |
371 | for (; from_index <= to_index; from_index++, from_c++) | |
372 | { | |
373 | if (NILP (CHAR_TABLE_REF (table, from_c))) | |
374 | CHAR_TABLE_SET (table, from_c, make_number (from_index)); | |
375 | } | |
376 | } | |
377 | else if (control_flag == 3) | |
378 | for (; from_index <= to_index; from_index++, from_c++) | |
379 | SET_TEMP_CHARSET_WORK_DECODER (from_c, from_index); | |
380 | else if (control_flag == 4) | |
381 | for (; from_index <= to_index; from_index++, from_c++) | |
382 | SET_TEMP_CHARSET_WORK_ENCODER (from_c, from_index); | |
383 | else /* control_flag == 0 */ | |
384 | { | |
3b4f4446 KH |
385 | if (ascii_compatible_p) |
386 | { | |
387 | if (! ASCII_BYTE_P (from_c)) | |
388 | { | |
389 | if (from_c < nonascii_min_char) | |
390 | nonascii_min_char = from_c; | |
391 | } | |
392 | else if (! ASCII_BYTE_P (to_c)) | |
393 | { | |
394 | nonascii_min_char = 0x80; | |
395 | } | |
396 | } | |
177c0ea7 | 397 | |
ecca2aad KH |
398 | for (; from_c <= to_c; from_c++) |
399 | CHARSET_FAST_MAP_SET (from_c, fast_map); | |
2e344af3 | 400 | } |
8ac5a9cc | 401 | } |
3263d5a2 | 402 | |
ecca2aad | 403 | if (control_flag == 0) |
4ed46869 | 404 | { |
3263d5a2 KH |
405 | CHARSET_MIN_CHAR (charset) = (ascii_compatible_p |
406 | ? nonascii_min_char : min_char); | |
407 | CHARSET_MAX_CHAR (charset) = max_char; | |
4ed46869 | 408 | } |
ecca2aad KH |
409 | else if (control_flag == 4) |
410 | { | |
411 | temp_charset_work->min_char = min_char; | |
412 | temp_charset_work->max_char = max_char; | |
413 | } | |
4ed46869 KH |
414 | } |
415 | ||
12bcae05 | 416 | |
3263d5a2 | 417 | /* Read a hexadecimal number (preceded by "0x") from the file FP while |
3b59c351 | 418 | paying attention to comment character '#'. */ |
12bcae05 | 419 | |
3263d5a2 | 420 | static INLINE unsigned |
971de7fb | 421 | read_hex (FILE *fp, int *eof) |
12bcae05 | 422 | { |
3263d5a2 KH |
423 | int c; |
424 | unsigned n; | |
12bcae05 | 425 | |
3263d5a2 KH |
426 | while ((c = getc (fp)) != EOF) |
427 | { | |
69f8de5b | 428 | if (c == '#') |
3263d5a2 KH |
429 | { |
430 | while ((c = getc (fp)) != EOF && c != '\n'); | |
431 | } | |
432 | else if (c == '0') | |
433 | { | |
434 | if ((c = getc (fp)) == EOF || c == 'x') | |
435 | break; | |
436 | } | |
8f924df7 | 437 | } |
3263d5a2 KH |
438 | if (c == EOF) |
439 | { | |
440 | *eof = 1; | |
441 | return 0; | |
442 | } | |
443 | *eof = 0; | |
444 | n = 0; | |
445 | if (c == 'x') | |
446 | while ((c = getc (fp)) != EOF && isxdigit (c)) | |
447 | n = ((n << 4) | |
448 | | (c <= '9' ? c - '0' : c <= 'F' ? c - 'A' + 10 : c - 'a' + 10)); | |
449 | else | |
450 | while ((c = getc (fp)) != EOF && isdigit (c)) | |
451 | n = (n * 10) + c - '0'; | |
e9ce014c KH |
452 | if (c != EOF) |
453 | ungetc (c, fp); | |
3263d5a2 KH |
454 | return n; |
455 | } | |
12bcae05 | 456 | |
3263d5a2 | 457 | /* Return a mapping vector for CHARSET loaded from MAPFILE. |
e9ce014c KH |
458 | Each line of MAPFILE has this form |
459 | 0xAAAA 0xCCCC | |
460 | where 0xAAAA is a code-point and 0xCCCC is the corresponding | |
461 | character code, or this form | |
462 | 0xAAAA-0xBBBB 0xCCCC | |
463 | where 0xAAAA and 0xBBBB are code-points specifying a range, and | |
464 | 0xCCCC is the first character code of the range. | |
4ed46869 | 465 | |
3263d5a2 KH |
466 | The returned vector has this form: |
467 | [ CODE1 CHAR1 CODE2 CHAR2 .... ] | |
e9ce014c | 468 | where CODE1 is a code-point or a cons of code-points specifying a |
dde2559c KH |
469 | range. |
470 | ||
18a10a21 JB |
471 | Note that this function uses `openp' to open MAPFILE but ignores |
472 | `file-name-handler-alist' to avoid running any Lisp code. */ | |
4ed46869 | 473 | |
e9ce014c | 474 | static void |
971de7fb | 475 | load_charset_map_from_file (struct charset *charset, Lisp_Object mapfile, int control_flag) |
4ed46869 | 476 | { |
e9ce014c KH |
477 | unsigned min_code = CHARSET_MIN_CODE (charset); |
478 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
3263d5a2 KH |
479 | int fd; |
480 | FILE *fp; | |
3263d5a2 KH |
481 | int eof; |
482 | Lisp_Object suffixes; | |
e9ce014c | 483 | struct charset_map_entries *head, *entries; |
a2f3eb19 CY |
484 | int n_entries, count; |
485 | USE_SAFE_ALLOCA; | |
4ed46869 | 486 | |
3263d5a2 KH |
487 | suffixes = Fcons (build_string (".map"), |
488 | Fcons (build_string (".TXT"), Qnil)); | |
4ed46869 | 489 | |
a2f3eb19 | 490 | count = SPECPDL_INDEX (); |
dde2559c | 491 | specbind (Qfile_name_handler_alist, Qnil); |
4beef065 | 492 | fd = openp (Vcharset_map_path, mapfile, suffixes, NULL, Qnil); |
dde2559c | 493 | unbind_to (count, Qnil); |
3263d5a2 KH |
494 | if (fd < 0 |
495 | || ! (fp = fdopen (fd, "r"))) | |
5fdb398c | 496 | error ("Failure in loading charset map: %s", SDATA (mapfile)); |
4ed46869 | 497 | |
a2f3eb19 CY |
498 | /* Use SAFE_ALLOCA instead of alloca, as `charset_map_entries' is |
499 | large (larger than MAX_ALLOCA). */ | |
500 | SAFE_ALLOCA (head, struct charset_map_entries *, | |
501 | sizeof (struct charset_map_entries)); | |
502 | entries = head; | |
72af86bd | 503 | memset (entries, 0, sizeof (struct charset_map_entries)); |
a2f3eb19 | 504 | |
e9ce014c | 505 | n_entries = 0; |
3263d5a2 KH |
506 | eof = 0; |
507 | while (1) | |
508 | { | |
e9ce014c KH |
509 | unsigned from, to; |
510 | int c; | |
511 | int idx; | |
4ed46869 | 512 | |
e9ce014c | 513 | from = read_hex (fp, &eof); |
3263d5a2 KH |
514 | if (eof) |
515 | break; | |
e9ce014c KH |
516 | if (getc (fp) == '-') |
517 | to = read_hex (fp, &eof); | |
518 | else | |
519 | to = from; | |
520 | c = (int) read_hex (fp, &eof); | |
ac4137cc | 521 | |
e9ce014c KH |
522 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
523 | continue; | |
ac4137cc | 524 | |
e9ce014c | 525 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
3263d5a2 | 526 | { |
a2f3eb19 CY |
527 | SAFE_ALLOCA (entries->next, struct charset_map_entries *, |
528 | sizeof (struct charset_map_entries)); | |
e9ce014c | 529 | entries = entries->next; |
72af86bd | 530 | memset (entries, 0, sizeof (struct charset_map_entries)); |
3263d5a2 | 531 | } |
e9ce014c KH |
532 | idx = n_entries % 0x10000; |
533 | entries->entry[idx].from = from; | |
534 | entries->entry[idx].to = to; | |
535 | entries->entry[idx].c = c; | |
536 | n_entries++; | |
3263d5a2 KH |
537 | } |
538 | fclose (fp); | |
177c0ea7 | 539 | |
e9ce014c | 540 | load_charset_map (charset, head, n_entries, control_flag); |
a2f3eb19 | 541 | SAFE_FREE (); |
4ed46869 KH |
542 | } |
543 | ||
e9ce014c | 544 | static void |
971de7fb | 545 | load_charset_map_from_vector (struct charset *charset, Lisp_Object vec, int control_flag) |
23d2a7f1 | 546 | { |
e9ce014c KH |
547 | unsigned min_code = CHARSET_MIN_CODE (charset); |
548 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
549 | struct charset_map_entries *head, *entries; | |
550 | int n_entries; | |
551 | int len = ASIZE (vec); | |
552 | int i; | |
a2f3eb19 | 553 | USE_SAFE_ALLOCA; |
23d2a7f1 | 554 | |
e9ce014c | 555 | if (len % 2 == 1) |
3263d5a2 | 556 | { |
e9ce014c KH |
557 | add_to_log ("Failure in loading charset map: %V", vec, Qnil); |
558 | return; | |
3263d5a2 | 559 | } |
35e623fb | 560 | |
a2f3eb19 CY |
561 | /* Use SAFE_ALLOCA instead of alloca, as `charset_map_entries' is |
562 | large (larger than MAX_ALLOCA). */ | |
563 | SAFE_ALLOCA (head, struct charset_map_entries *, | |
564 | sizeof (struct charset_map_entries)); | |
565 | entries = head; | |
72af86bd | 566 | memset (entries, 0, sizeof (struct charset_map_entries)); |
a2f3eb19 | 567 | |
e9ce014c KH |
568 | n_entries = 0; |
569 | for (i = 0; i < len; i += 2) | |
35e623fb | 570 | { |
e9ce014c KH |
571 | Lisp_Object val, val2; |
572 | unsigned from, to; | |
573 | int c; | |
574 | int idx; | |
d2665018 | 575 | |
e9ce014c KH |
576 | val = AREF (vec, i); |
577 | if (CONSP (val)) | |
bbf12bb3 | 578 | { |
e9ce014c KH |
579 | val2 = XCDR (val); |
580 | val = XCAR (val); | |
581 | CHECK_NATNUM (val); | |
582 | CHECK_NATNUM (val2); | |
583 | from = XFASTINT (val); | |
584 | to = XFASTINT (val2); | |
bbf12bb3 | 585 | } |
e9ce014c | 586 | else |
bbf12bb3 | 587 | { |
e9ce014c KH |
588 | CHECK_NATNUM (val); |
589 | from = to = XFASTINT (val); | |
bbf12bb3 | 590 | } |
e9ce014c KH |
591 | val = AREF (vec, i + 1); |
592 | CHECK_NATNUM (val); | |
593 | c = XFASTINT (val); | |
76d7b829 | 594 | |
e9ce014c KH |
595 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
596 | continue; | |
76d7b829 | 597 | |
dcc694d7 | 598 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
e9ce014c | 599 | { |
a2f3eb19 CY |
600 | SAFE_ALLOCA (entries->next, struct charset_map_entries *, |
601 | sizeof (struct charset_map_entries)); | |
e9ce014c | 602 | entries = entries->next; |
72af86bd | 603 | memset (entries, 0, sizeof (struct charset_map_entries)); |
e9ce014c KH |
604 | } |
605 | idx = n_entries % 0x10000; | |
606 | entries->entry[idx].from = from; | |
607 | entries->entry[idx].to = to; | |
608 | entries->entry[idx].c = c; | |
609 | n_entries++; | |
610 | } | |
76d7b829 | 611 | |
e9ce014c | 612 | load_charset_map (charset, head, n_entries, control_flag); |
a2f3eb19 | 613 | SAFE_FREE (); |
ac4137cc KH |
614 | } |
615 | ||
ecca2aad KH |
616 | |
617 | /* Load a mapping table for CHARSET. CONTROL-FLAG tells what kind of | |
618 | map it is (see the comment of load_charset_map for the detail). */ | |
619 | ||
3263d5a2 | 620 | static void |
971de7fb | 621 | load_charset (struct charset *charset, int control_flag) |
76d7b829 | 622 | { |
ecca2aad | 623 | Lisp_Object map; |
76d7b829 | 624 | |
ecca2aad KH |
625 | if (inhibit_load_charset_map |
626 | && temp_charset_work | |
627 | && charset == temp_charset_work->current | |
56f00ed2 | 628 | && ((control_flag == 2) == temp_charset_work->for_encoder)) |
ecca2aad KH |
629 | return; |
630 | ||
631 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) | |
632 | map = CHARSET_MAP (charset); | |
0ac2c299 PE |
633 | else |
634 | { | |
635 | if (! CHARSET_UNIFIED_P (charset)) | |
636 | abort (); | |
637 | map = CHARSET_UNIFY_MAP (charset); | |
638 | } | |
ecca2aad KH |
639 | if (STRINGP (map)) |
640 | load_charset_map_from_file (charset, map, control_flag); | |
641 | else | |
642 | load_charset_map_from_vector (charset, map, control_flag); | |
4ed46869 | 643 | } |
76d7b829 | 644 | |
3263d5a2 KH |
645 | |
646 | DEFUN ("charsetp", Fcharsetp, Scharsetp, 1, 1, 0, | |
647 | doc: /* Return non-nil if and only if OBJECT is a charset.*/) | |
5842a27b | 648 | (Lisp_Object object) |
23d2a7f1 | 649 | { |
3263d5a2 | 650 | return (CHARSETP (object) ? Qt : Qnil); |
76d7b829 KH |
651 | } |
652 | ||
4ed46869 | 653 | |
f57e2426 J |
654 | void map_charset_for_dump (void (*c_function) (Lisp_Object, Lisp_Object), |
655 | Lisp_Object function, Lisp_Object arg, | |
656 | unsigned from, unsigned to); | |
ecca2aad KH |
657 | |
658 | void | |
971de7fb | 659 | 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 |
660 | { |
661 | int from_idx = CODE_POINT_TO_INDEX (temp_charset_work->current, from); | |
662 | int to_idx = CODE_POINT_TO_INDEX (temp_charset_work->current, to); | |
663 | Lisp_Object range; | |
664 | int c, stop; | |
665 | struct gcpro gcpro1; | |
666 | ||
667 | range = Fcons (Qnil, Qnil); | |
668 | GCPRO1 (range); | |
669 | ||
670 | c = temp_charset_work->min_char; | |
671 | stop = (temp_charset_work->max_char < 0x20000 | |
672 | ? temp_charset_work->max_char : 0xFFFF); | |
51b59d79 | 673 | |
ecca2aad KH |
674 | while (1) |
675 | { | |
f6095868 | 676 | int idx = GET_TEMP_CHARSET_WORK_ENCODER (c); |
ecca2aad | 677 | |
f6095868 | 678 | if (idx >= from_idx && idx <= to_idx) |
ecca2aad KH |
679 | { |
680 | if (NILP (XCAR (range))) | |
681 | XSETCAR (range, make_number (c)); | |
682 | } | |
683 | else if (! NILP (XCAR (range))) | |
684 | { | |
685 | XSETCDR (range, make_number (c - 1)); | |
686 | if (c_function) | |
687 | (*c_function) (arg, range); | |
688 | else | |
689 | call2 (function, range, arg); | |
690 | XSETCAR (range, Qnil); | |
691 | } | |
692 | if (c == stop) | |
693 | { | |
694 | if (c == temp_charset_work->max_char) | |
695 | { | |
696 | if (! NILP (XCAR (range))) | |
697 | { | |
698 | XSETCDR (range, make_number (c)); | |
699 | if (c_function) | |
700 | (*c_function) (arg, range); | |
701 | else | |
702 | call2 (function, range, arg); | |
703 | } | |
704 | break; | |
705 | } | |
706 | c = 0x1FFFF; | |
707 | stop = temp_charset_work->max_char; | |
708 | } | |
709 | c++; | |
710 | } | |
c542407d | 711 | UNGCPRO; |
ecca2aad KH |
712 | } |
713 | ||
4ed46869 | 714 | void |
6f704c76 DN |
715 | map_charset_chars (void (*c_function)(Lisp_Object, Lisp_Object), Lisp_Object function, |
716 | Lisp_Object arg, struct charset *charset, unsigned from, unsigned to) | |
4ed46869 | 717 | { |
3263d5a2 | 718 | Lisp_Object range; |
374c5cfd | 719 | int partial; |
3263d5a2 | 720 | |
374c5cfd KH |
721 | partial = (from > CHARSET_MIN_CODE (charset) |
722 | || to < CHARSET_MAX_CODE (charset)); | |
723 | ||
3263d5a2 | 724 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_OFFSET) |
4ed46869 | 725 | { |
374c5cfd KH |
726 | int from_idx = CODE_POINT_TO_INDEX (charset, from); |
727 | int to_idx = CODE_POINT_TO_INDEX (charset, to); | |
728 | int from_c = from_idx + CHARSET_CODE_OFFSET (charset); | |
729 | int to_c = to_idx + CHARSET_CODE_OFFSET (charset); | |
730 | ||
ecca2aad KH |
731 | if (CHARSET_UNIFIED_P (charset)) |
732 | { | |
733 | if (! CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
734 | load_charset (charset, 2); | |
735 | if (CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
736 | map_char_table_for_charset (c_function, function, | |
737 | CHARSET_DEUNIFIER (charset), arg, | |
738 | partial ? charset : NULL, from, to); | |
739 | else | |
740 | map_charset_for_dump (c_function, function, arg, from, to); | |
741 | } | |
742 | ||
374c5cfd | 743 | range = Fcons (make_number (from_c), make_number (to_c)); |
3263d5a2 | 744 | if (NILP (function)) |
5af5dd92 | 745 | (*c_function) (arg, range); |
3263d5a2 KH |
746 | else |
747 | call2 (function, range, arg); | |
c83ef371 | 748 | } |
3263d5a2 KH |
749 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) |
750 | { | |
751 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
ecca2aad KH |
752 | load_charset (charset, 2); |
753 | if (CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
754 | map_char_table_for_charset (c_function, function, | |
755 | CHARSET_ENCODER (charset), arg, | |
756 | partial ? charset : NULL, from, to); | |
757 | else | |
758 | map_charset_for_dump (c_function, function, arg, from, to); | |
3263d5a2 | 759 | } |
374c5cfd | 760 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_SUBSET) |
4ed46869 | 761 | { |
374c5cfd KH |
762 | Lisp_Object subset_info; |
763 | int offset; | |
764 | ||
765 | subset_info = CHARSET_SUBSET (charset); | |
766 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
767 | offset = XINT (AREF (subset_info, 3)); | |
768 | from -= offset; | |
769 | if (from < XFASTINT (AREF (subset_info, 1))) | |
770 | from = XFASTINT (AREF (subset_info, 1)); | |
771 | to -= offset; | |
772 | if (to > XFASTINT (AREF (subset_info, 2))) | |
773 | to = XFASTINT (AREF (subset_info, 2)); | |
774 | map_charset_chars (c_function, function, arg, charset, from, to); | |
4ed46869 | 775 | } |
374c5cfd KH |
776 | else /* i.e. CHARSET_METHOD_SUPERSET */ |
777 | { | |
778 | Lisp_Object parents; | |
4ed46869 | 779 | |
374c5cfd KH |
780 | for (parents = CHARSET_SUPERSET (charset); CONSP (parents); |
781 | parents = XCDR (parents)) | |
bbf12bb3 | 782 | { |
374c5cfd KH |
783 | int offset; |
784 | unsigned this_from, this_to; | |
785 | ||
786 | charset = CHARSET_FROM_ID (XFASTINT (XCAR (XCAR (parents)))); | |
787 | offset = XINT (XCDR (XCAR (parents))); | |
12b55765 KH |
788 | this_from = from > offset ? from - offset : 0; |
789 | this_to = to > offset ? to - offset : 0; | |
374c5cfd KH |
790 | if (this_from < CHARSET_MIN_CODE (charset)) |
791 | this_from = CHARSET_MIN_CODE (charset); | |
792 | if (this_to > CHARSET_MAX_CODE (charset)) | |
793 | this_to = CHARSET_MAX_CODE (charset); | |
111daccf KH |
794 | map_charset_chars (c_function, function, arg, charset, |
795 | this_from, this_to); | |
bbf12bb3 | 796 | } |
35e623fb | 797 | } |
4ed46869 KH |
798 | } |
799 | ||
374c5cfd | 800 | DEFUN ("map-charset-chars", Fmap_charset_chars, Smap_charset_chars, 2, 5, 0, |
04c2f2c5 | 801 | doc: /* Call FUNCTION for all characters in CHARSET. |
374c5cfd | 802 | FUNCTION is called with an argument RANGE and the optional 3rd |
3263d5a2 | 803 | argument ARG. |
4ed46869 | 804 | |
374c5cfd KH |
805 | RANGE is a cons (FROM . TO), where FROM and TO indicate a range of |
806 | characters contained in CHARSET. | |
4ed46869 | 807 | |
374c5cfd | 808 | The optional 4th and 5th arguments FROM-CODE and TO-CODE specify the |
72d51285 | 809 | range of code points (in CHARSET) of target characters. */) |
5842a27b | 810 | (Lisp_Object function, Lisp_Object charset, Lisp_Object arg, Lisp_Object from_code, Lisp_Object to_code) |
4ed46869 | 811 | { |
374c5cfd | 812 | struct charset *cs; |
16fed1fc | 813 | unsigned from, to; |
4ed46869 | 814 | |
374c5cfd KH |
815 | CHECK_CHARSET_GET_CHARSET (charset, cs); |
816 | if (NILP (from_code)) | |
16fed1fc | 817 | from = CHARSET_MIN_CODE (cs); |
970b7474 | 818 | else |
4ed46869 | 819 | { |
970b7474 KH |
820 | CHECK_NATNUM (from_code); |
821 | from = XINT (from_code); | |
822 | if (from < CHARSET_MIN_CODE (cs)) | |
823 | from = CHARSET_MIN_CODE (cs); | |
4ed46869 | 824 | } |
374c5cfd | 825 | if (NILP (to_code)) |
970b7474 | 826 | to = CHARSET_MAX_CODE (cs); |
4ed46869 KH |
827 | else |
828 | { | |
970b7474 KH |
829 | CHECK_NATNUM (to_code); |
830 | to = XINT (to_code); | |
831 | if (to > CHARSET_MAX_CODE (cs)) | |
832 | to = CHARSET_MAX_CODE (cs); | |
4ed46869 | 833 | } |
16fed1fc | 834 | map_charset_chars (NULL, function, arg, cs, from, to); |
3263d5a2 | 835 | return Qnil; |
35e623fb | 836 | } |
4ed46869 | 837 | |
4ed46869 | 838 | |
3263d5a2 KH |
839 | /* Define a charset according to the arguments. The Nth argument is |
840 | the Nth attribute of the charset (the last attribute `charset-id' | |
841 | is not included). See the docstring of `define-charset' for the | |
842 | detail. */ | |
4ed46869 | 843 | |
3263d5a2 KH |
844 | DEFUN ("define-charset-internal", Fdefine_charset_internal, |
845 | Sdefine_charset_internal, charset_arg_max, MANY, 0, | |
04c2f2c5 DL |
846 | doc: /* For internal use only. |
847 | usage: (define-charset-internal ...) */) | |
c5101a77 | 848 | (size_t nargs, Lisp_Object *args) |
4ed46869 | 849 | { |
3263d5a2 KH |
850 | /* Charset attr vector. */ |
851 | Lisp_Object attrs; | |
852 | Lisp_Object val; | |
853 | unsigned hash_code; | |
854 | struct Lisp_Hash_Table *hash_table = XHASH_TABLE (Vcharset_hash_table); | |
69f8de5b | 855 | int i, j; |
3263d5a2 KH |
856 | struct charset charset; |
857 | int id; | |
858 | int dimension; | |
859 | int new_definition_p; | |
860 | int nchars; | |
861 | ||
862 | if (nargs != charset_arg_max) | |
863 | return Fsignal (Qwrong_number_of_arguments, | |
864 | Fcons (intern ("define-charset-internal"), | |
865 | make_number (nargs))); | |
866 | ||
867 | attrs = Fmake_vector (make_number (charset_attr_max), Qnil); | |
868 | ||
869 | CHECK_SYMBOL (args[charset_arg_name]); | |
870 | ASET (attrs, charset_name, args[charset_arg_name]); | |
871 | ||
872 | val = args[charset_arg_code_space]; | |
873 | for (i = 0, dimension = 0, nchars = 1; i < 4; i++) | |
76d7b829 | 874 | { |
3263d5a2 KH |
875 | int min_byte, max_byte; |
876 | ||
877 | min_byte = XINT (Faref (val, make_number (i * 2))); | |
878 | max_byte = XINT (Faref (val, make_number (i * 2 + 1))); | |
879 | if (min_byte < 0 || min_byte > max_byte || max_byte >= 256) | |
880 | error ("Invalid :code-space value"); | |
881 | charset.code_space[i * 4] = min_byte; | |
882 | charset.code_space[i * 4 + 1] = max_byte; | |
883 | charset.code_space[i * 4 + 2] = max_byte - min_byte + 1; | |
884 | nchars *= charset.code_space[i * 4 + 2]; | |
885 | charset.code_space[i * 4 + 3] = nchars; | |
886 | if (max_byte > 0) | |
887 | dimension = i + 1; | |
888 | } | |
4ed46869 | 889 | |
3263d5a2 KH |
890 | val = args[charset_arg_dimension]; |
891 | if (NILP (val)) | |
892 | charset.dimension = dimension; | |
893 | else | |
4ed46869 | 894 | { |
3263d5a2 KH |
895 | CHECK_NATNUM (val); |
896 | charset.dimension = XINT (val); | |
897 | if (charset.dimension < 1 || charset.dimension > 4) | |
898 | args_out_of_range_3 (val, make_number (1), make_number (4)); | |
4ed46869 KH |
899 | } |
900 | ||
3263d5a2 KH |
901 | charset.code_linear_p |
902 | = (charset.dimension == 1 | |
903 | || (charset.code_space[2] == 256 | |
904 | && (charset.dimension == 2 | |
905 | || (charset.code_space[6] == 256 | |
906 | && (charset.dimension == 3 | |
907 | || charset.code_space[10] == 256))))); | |
908 | ||
69f8de5b | 909 | if (! charset.code_linear_p) |
4ed46869 | 910 | { |
69f8de5b | 911 | charset.code_space_mask = (unsigned char *) xmalloc (256); |
72af86bd | 912 | memset (charset.code_space_mask, 0, 256); |
69f8de5b KH |
913 | for (i = 0; i < 4; i++) |
914 | for (j = charset.code_space[i * 4]; j <= charset.code_space[i * 4 + 1]; | |
915 | j++) | |
916 | charset.code_space_mask[j] |= (1 << i); | |
4ed46869 KH |
917 | } |
918 | ||
3263d5a2 | 919 | charset.iso_chars_96 = charset.code_space[2] == 96; |
4ed46869 | 920 | |
3263d5a2 KH |
921 | charset.min_code = (charset.code_space[0] |
922 | | (charset.code_space[4] << 8) | |
923 | | (charset.code_space[8] << 16) | |
924 | | (charset.code_space[12] << 24)); | |
925 | charset.max_code = (charset.code_space[1] | |
926 | | (charset.code_space[5] << 8) | |
927 | | (charset.code_space[9] << 16) | |
928 | | (charset.code_space[13] << 24)); | |
820ee249 | 929 | charset.char_index_offset = 0; |
8a73a704 | 930 | |
820ee249 KH |
931 | val = args[charset_arg_min_code]; |
932 | if (! NILP (val)) | |
933 | { | |
934 | unsigned code; | |
fdb82f93 | 935 | |
820ee249 KH |
936 | if (INTEGERP (val)) |
937 | code = XINT (val); | |
938 | else | |
939 | { | |
940 | CHECK_CONS (val); | |
8f924df7 KH |
941 | CHECK_NUMBER_CAR (val); |
942 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
943 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
944 | } | |
945 | if (code < charset.min_code | |
946 | || code > charset.max_code) | |
947 | args_out_of_range_3 (make_number (charset.min_code), | |
948 | make_number (charset.max_code), val); | |
949 | charset.char_index_offset = CODE_POINT_TO_INDEX (&charset, code); | |
950 | charset.min_code = code; | |
951 | } | |
3fac5a51 | 952 | |
820ee249 KH |
953 | val = args[charset_arg_max_code]; |
954 | if (! NILP (val)) | |
3fac5a51 | 955 | { |
820ee249 KH |
956 | unsigned code; |
957 | ||
958 | if (INTEGERP (val)) | |
959 | code = XINT (val); | |
960 | else | |
961 | { | |
962 | CHECK_CONS (val); | |
8f924df7 KH |
963 | CHECK_NUMBER_CAR (val); |
964 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
965 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
966 | } | |
967 | if (code < charset.min_code | |
968 | || code > charset.max_code) | |
969 | args_out_of_range_3 (make_number (charset.min_code), | |
970 | make_number (charset.max_code), val); | |
971 | charset.max_code = code; | |
3fac5a51 | 972 | } |
3fac5a51 | 973 | |
ecca2aad | 974 | charset.compact_codes_p = charset.max_code < 0x10000; |
4ed46869 | 975 | |
3263d5a2 KH |
976 | val = args[charset_arg_invalid_code]; |
977 | if (NILP (val)) | |
978 | { | |
979 | if (charset.min_code > 0) | |
980 | charset.invalid_code = 0; | |
bbf12bb3 KH |
981 | else |
982 | { | |
3263d5a2 KH |
983 | XSETINT (val, charset.max_code + 1); |
984 | if (XINT (val) == charset.max_code + 1) | |
985 | charset.invalid_code = charset.max_code + 1; | |
986 | else | |
987 | error ("Attribute :invalid-code must be specified"); | |
76d7b829 | 988 | } |
76d7b829 | 989 | } |
3263d5a2 KH |
990 | else |
991 | { | |
992 | CHECK_NATNUM (val); | |
993 | charset.invalid_code = XFASTINT (val); | |
994 | } | |
4ed46869 | 995 | |
3263d5a2 KH |
996 | val = args[charset_arg_iso_final]; |
997 | if (NILP (val)) | |
998 | charset.iso_final = -1; | |
999 | else | |
1000 | { | |
1001 | CHECK_NUMBER (val); | |
1002 | if (XINT (val) < '0' || XINT (val) > 127) | |
5fdb398c | 1003 | error ("Invalid iso-final-char: %"pEd, XINT (val)); |
3263d5a2 KH |
1004 | charset.iso_final = XINT (val); |
1005 | } | |
4ed46869 | 1006 | |
3263d5a2 KH |
1007 | val = args[charset_arg_iso_revision]; |
1008 | if (NILP (val)) | |
1009 | charset.iso_revision = -1; | |
1010 | else | |
4ed46869 | 1011 | { |
3263d5a2 KH |
1012 | CHECK_NUMBER (val); |
1013 | if (XINT (val) > 63) | |
1014 | args_out_of_range (make_number (63), val); | |
1015 | charset.iso_revision = XINT (val); | |
4ed46869 | 1016 | } |
4ed46869 | 1017 | |
3263d5a2 KH |
1018 | val = args[charset_arg_emacs_mule_id]; |
1019 | if (NILP (val)) | |
1020 | charset.emacs_mule_id = -1; | |
4ed46869 KH |
1021 | else |
1022 | { | |
3263d5a2 KH |
1023 | CHECK_NATNUM (val); |
1024 | if ((XINT (val) > 0 && XINT (val) <= 128) || XINT (val) >= 256) | |
5fdb398c | 1025 | error ("Invalid emacs-mule-id: %"pEd, XINT (val)); |
3263d5a2 | 1026 | charset.emacs_mule_id = XINT (val); |
c83ef371 | 1027 | } |
f6302ac9 | 1028 | |
3263d5a2 | 1029 | charset.ascii_compatible_p = ! NILP (args[charset_arg_ascii_compatible_p]); |
1d67c29b | 1030 | |
3263d5a2 | 1031 | charset.supplementary_p = ! NILP (args[charset_arg_supplementary_p]); |
4ed46869 | 1032 | |
3263d5a2 KH |
1033 | charset.unified_p = 0; |
1034 | ||
72af86bd | 1035 | memset (charset.fast_map, 0, sizeof (charset.fast_map)); |
3263d5a2 KH |
1036 | |
1037 | if (! NILP (args[charset_arg_code_offset])) | |
1038 | { | |
1039 | val = args[charset_arg_code_offset]; | |
1040 | CHECK_NUMBER (val); | |
1041 | ||
1042 | charset.method = CHARSET_METHOD_OFFSET; | |
1043 | charset.code_offset = XINT (val); | |
1044 | ||
1045 | i = CODE_POINT_TO_INDEX (&charset, charset.min_code); | |
1046 | charset.min_char = i + charset.code_offset; | |
1047 | i = CODE_POINT_TO_INDEX (&charset, charset.max_code); | |
1048 | charset.max_char = i + charset.code_offset; | |
1049 | if (charset.max_char > MAX_CHAR) | |
1050 | error ("Unsupported max char: %d", charset.max_char); | |
1051 | ||
f148205f KH |
1052 | i = (charset.min_char >> 7) << 7; |
1053 | for (; i < 0x10000 && i <= charset.max_char; i += 128) | |
3263d5a2 | 1054 | CHARSET_FAST_MAP_SET (i, charset.fast_map); |
f148205f | 1055 | i = (i >> 12) << 12; |
3263d5a2 KH |
1056 | for (; i <= charset.max_char; i += 0x1000) |
1057 | CHARSET_FAST_MAP_SET (i, charset.fast_map); | |
3620330b KH |
1058 | if (charset.code_offset == 0 && charset.max_char >= 0x80) |
1059 | charset.ascii_compatible_p = 1; | |
3263d5a2 KH |
1060 | } |
1061 | else if (! NILP (args[charset_arg_map])) | |
1062 | { | |
1063 | val = args[charset_arg_map]; | |
1064 | ASET (attrs, charset_map, val); | |
ecca2aad | 1065 | charset.method = CHARSET_METHOD_MAP; |
3263d5a2 | 1066 | } |
374c5cfd | 1067 | else if (! NILP (args[charset_arg_subset])) |
3263d5a2 | 1068 | { |
374c5cfd KH |
1069 | Lisp_Object parent; |
1070 | Lisp_Object parent_min_code, parent_max_code, parent_code_offset; | |
1071 | struct charset *parent_charset; | |
1072 | ||
1073 | val = args[charset_arg_subset]; | |
1074 | parent = Fcar (val); | |
1075 | CHECK_CHARSET_GET_CHARSET (parent, parent_charset); | |
1076 | parent_min_code = Fnth (make_number (1), val); | |
1077 | CHECK_NATNUM (parent_min_code); | |
1078 | parent_max_code = Fnth (make_number (2), val); | |
1079 | CHECK_NATNUM (parent_max_code); | |
1080 | parent_code_offset = Fnth (make_number (3), val); | |
1081 | CHECK_NUMBER (parent_code_offset); | |
1082 | val = Fmake_vector (make_number (4), Qnil); | |
1083 | ASET (val, 0, make_number (parent_charset->id)); | |
1084 | ASET (val, 1, parent_min_code); | |
1085 | ASET (val, 2, parent_max_code); | |
1086 | ASET (val, 3, parent_code_offset); | |
1087 | ASET (attrs, charset_subset, val); | |
1088 | ||
1089 | charset.method = CHARSET_METHOD_SUBSET; | |
1090 | /* Here, we just copy the parent's fast_map. It's not accurate, | |
1091 | but at least it works for quickly detecting which character | |
1092 | DOESN'T belong to this charset. */ | |
1093 | for (i = 0; i < 190; i++) | |
1094 | charset.fast_map[i] = parent_charset->fast_map[i]; | |
1095 | ||
1096 | /* We also copy these for parents. */ | |
1097 | charset.min_char = parent_charset->min_char; | |
1098 | charset.max_char = parent_charset->max_char; | |
1099 | } | |
1100 | else if (! NILP (args[charset_arg_superset])) | |
0282eb69 | 1101 | { |
374c5cfd KH |
1102 | val = args[charset_arg_superset]; |
1103 | charset.method = CHARSET_METHOD_SUPERSET; | |
3263d5a2 | 1104 | val = Fcopy_sequence (val); |
374c5cfd | 1105 | ASET (attrs, charset_superset, val); |
3263d5a2 KH |
1106 | |
1107 | charset.min_char = MAX_CHAR; | |
1108 | charset.max_char = 0; | |
1109 | for (; ! NILP (val); val = Fcdr (val)) | |
0282eb69 | 1110 | { |
3263d5a2 KH |
1111 | Lisp_Object elt, car_part, cdr_part; |
1112 | int this_id, offset; | |
1113 | struct charset *this_charset; | |
2e344af3 | 1114 | |
3263d5a2 KH |
1115 | elt = Fcar (val); |
1116 | if (CONSP (elt)) | |
2e344af3 | 1117 | { |
3263d5a2 KH |
1118 | car_part = XCAR (elt); |
1119 | cdr_part = XCDR (elt); | |
1120 | CHECK_CHARSET_GET_ID (car_part, this_id); | |
1121 | CHECK_NUMBER (cdr_part); | |
1122 | offset = XINT (cdr_part); | |
177c0ea7 | 1123 | } |
3263d5a2 | 1124 | else |
4ed46869 | 1125 | { |
3263d5a2 KH |
1126 | CHECK_CHARSET_GET_ID (elt, this_id); |
1127 | offset = 0; | |
4ed46869 | 1128 | } |
3263d5a2 KH |
1129 | XSETCAR (val, Fcons (make_number (this_id), make_number (offset))); |
1130 | ||
1131 | this_charset = CHARSET_FROM_ID (this_id); | |
1132 | if (charset.min_char > this_charset->min_char) | |
1133 | charset.min_char = this_charset->min_char; | |
1134 | if (charset.max_char < this_charset->max_char) | |
1135 | charset.max_char = this_charset->max_char; | |
1136 | for (i = 0; i < 190; i++) | |
1137 | charset.fast_map[i] |= this_charset->fast_map[i]; | |
0282eb69 | 1138 | } |
0282eb69 | 1139 | } |
2e344af3 | 1140 | else |
3263d5a2 | 1141 | error ("None of :code-offset, :map, :parents are specified"); |
05505664 | 1142 | |
3263d5a2 KH |
1143 | val = args[charset_arg_unify_map]; |
1144 | if (! NILP (val) && !STRINGP (val)) | |
1145 | CHECK_VECTOR (val); | |
1146 | ASET (attrs, charset_unify_map, val); | |
05505664 | 1147 | |
3263d5a2 KH |
1148 | CHECK_LIST (args[charset_arg_plist]); |
1149 | ASET (attrs, charset_plist, args[charset_arg_plist]); | |
4ed46869 | 1150 | |
3263d5a2 KH |
1151 | charset.hash_index = hash_lookup (hash_table, args[charset_arg_name], |
1152 | &hash_code); | |
1153 | if (charset.hash_index >= 0) | |
1154 | { | |
1155 | new_definition_p = 0; | |
4f65af01 | 1156 | id = XFASTINT (CHARSET_SYMBOL_ID (args[charset_arg_name])); |
3263d5a2 KH |
1157 | HASH_VALUE (hash_table, charset.hash_index) = attrs; |
1158 | } | |
1a45ff10 | 1159 | else |
3263d5a2 KH |
1160 | { |
1161 | charset.hash_index = hash_put (hash_table, args[charset_arg_name], attrs, | |
1162 | hash_code); | |
1163 | if (charset_table_used == charset_table_size) | |
1164 | { | |
2fe1edd1 KH |
1165 | struct charset *new_table |
1166 | = (struct charset *) xmalloc (sizeof (struct charset) | |
1167 | * (charset_table_size + 16)); | |
72af86bd AS |
1168 | memcpy (new_table, charset_table, |
1169 | sizeof (struct charset) * charset_table_size); | |
2fe1edd1 KH |
1170 | charset_table_size += 16; |
1171 | charset_table = new_table; | |
3263d5a2 KH |
1172 | } |
1173 | id = charset_table_used++; | |
3263d5a2 KH |
1174 | new_definition_p = 1; |
1175 | } | |
2e344af3 | 1176 | |
4f65af01 | 1177 | ASET (attrs, charset_id, make_number (id)); |
3263d5a2 KH |
1178 | charset.id = id; |
1179 | charset_table[id] = charset; | |
2e344af3 | 1180 | |
ecca2aad | 1181 | if (charset.method == CHARSET_METHOD_MAP) |
b8ebe9dd KH |
1182 | { |
1183 | load_charset (&charset, 0); | |
1184 | charset_table[id] = charset; | |
1185 | } | |
ecca2aad | 1186 | |
3263d5a2 | 1187 | if (charset.iso_final >= 0) |
4ed46869 | 1188 | { |
3263d5a2 KH |
1189 | ISO_CHARSET_TABLE (charset.dimension, charset.iso_chars_96, |
1190 | charset.iso_final) = id; | |
1191 | if (new_definition_p) | |
1192 | Viso_2022_charset_list = nconc2 (Viso_2022_charset_list, | |
1193 | Fcons (make_number (id), Qnil)); | |
7c7dceee KH |
1194 | if (ISO_CHARSET_TABLE (1, 0, 'J') == id) |
1195 | charset_jisx0201_roman = id; | |
1196 | else if (ISO_CHARSET_TABLE (2, 0, '@') == id) | |
1197 | charset_jisx0208_1978 = id; | |
1198 | else if (ISO_CHARSET_TABLE (2, 0, 'B') == id) | |
1199 | charset_jisx0208 = id; | |
d32320c4 KH |
1200 | else if (ISO_CHARSET_TABLE (2, 0, 'C') == id) |
1201 | charset_ksc5601 = id; | |
4ed46869 | 1202 | } |
d0cf2d48 | 1203 | |
3263d5a2 | 1204 | if (charset.emacs_mule_id >= 0) |
4ed46869 | 1205 | { |
b84ae584 | 1206 | emacs_mule_charset[charset.emacs_mule_id] = id; |
4f65af01 KH |
1207 | if (charset.emacs_mule_id < 0xA0) |
1208 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 1; | |
3b1ae89b KH |
1209 | else |
1210 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 2; | |
3263d5a2 KH |
1211 | if (new_definition_p) |
1212 | Vemacs_mule_charset_list = nconc2 (Vemacs_mule_charset_list, | |
1213 | Fcons (make_number (id), Qnil)); | |
4ed46869 KH |
1214 | } |
1215 | ||
3263d5a2 KH |
1216 | if (new_definition_p) |
1217 | { | |
1218 | Vcharset_list = Fcons (args[charset_arg_name], Vcharset_list); | |
8055c66a KH |
1219 | if (charset.supplementary_p) |
1220 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1221 | Fcons (make_number (id), Qnil)); | |
1222 | else | |
880820fe KH |
1223 | { |
1224 | Lisp_Object tail; | |
1225 | ||
1226 | for (tail = Vcharset_ordered_list; CONSP (tail); tail = XCDR (tail)) | |
1227 | { | |
1228 | struct charset *cs = CHARSET_FROM_ID (XINT (XCAR (tail))); | |
1229 | ||
1230 | if (cs->supplementary_p) | |
1231 | break; | |
1232 | } | |
1233 | if (EQ (tail, Vcharset_ordered_list)) | |
1234 | Vcharset_ordered_list = Fcons (make_number (id), | |
1235 | Vcharset_ordered_list); | |
1236 | else if (NILP (tail)) | |
1237 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1238 | Fcons (make_number (id), Qnil)); | |
1239 | else | |
1240 | { | |
1241 | val = Fcons (XCAR (tail), XCDR (tail)); | |
1242 | XSETCDR (tail, val); | |
1243 | XSETCAR (tail, make_number (id)); | |
1244 | } | |
1245 | } | |
dbbb237d | 1246 | charset_ordered_list_tick++; |
3263d5a2 | 1247 | } |
4ed46869 | 1248 | |
3263d5a2 | 1249 | return Qnil; |
4ed46869 KH |
1250 | } |
1251 | ||
2fe1edd1 KH |
1252 | |
1253 | /* Same as Fdefine_charset_internal but arguments are more convenient | |
1254 | to call from C (typically in syms_of_charset). This can define a | |
1255 | charset of `offset' method only. Return the ID of the new | |
1256 | charset. */ | |
1257 | ||
1258 | static int | |
dd4c5104 DN |
1259 | define_charset_internal (Lisp_Object name, |
1260 | int dimension, | |
dfb6afda | 1261 | const char *code_space_chars, |
dd4c5104 DN |
1262 | unsigned min_code, unsigned max_code, |
1263 | int iso_final, int iso_revision, int emacs_mule_id, | |
1264 | int ascii_compatible, int supplementary, | |
1265 | int code_offset) | |
2fe1edd1 | 1266 | { |
dfb6afda | 1267 | const unsigned char *code_space = (const unsigned char *) code_space_chars; |
2fe1edd1 KH |
1268 | Lisp_Object args[charset_arg_max]; |
1269 | Lisp_Object plist[14]; | |
1270 | Lisp_Object val; | |
1271 | int i; | |
1272 | ||
1273 | args[charset_arg_name] = name; | |
1274 | args[charset_arg_dimension] = make_number (dimension); | |
1275 | val = Fmake_vector (make_number (8), make_number (0)); | |
1276 | for (i = 0; i < 8; i++) | |
1277 | ASET (val, i, make_number (code_space[i])); | |
1278 | args[charset_arg_code_space] = val; | |
1279 | args[charset_arg_min_code] = make_number (min_code); | |
1280 | args[charset_arg_max_code] = make_number (max_code); | |
1281 | args[charset_arg_iso_final] | |
1282 | = (iso_final < 0 ? Qnil : make_number (iso_final)); | |
1283 | args[charset_arg_iso_revision] = make_number (iso_revision); | |
1284 | args[charset_arg_emacs_mule_id] | |
1285 | = (emacs_mule_id < 0 ? Qnil : make_number (emacs_mule_id)); | |
1286 | args[charset_arg_ascii_compatible_p] = ascii_compatible ? Qt : Qnil; | |
7acf89e6 | 1287 | args[charset_arg_supplementary_p] = supplementary ? Qt : Qnil; |
2fe1edd1 KH |
1288 | args[charset_arg_invalid_code] = Qnil; |
1289 | args[charset_arg_code_offset] = make_number (code_offset); | |
1290 | args[charset_arg_map] = Qnil; | |
1291 | args[charset_arg_subset] = Qnil; | |
1292 | args[charset_arg_superset] = Qnil; | |
1293 | args[charset_arg_unify_map] = Qnil; | |
1294 | ||
d67b4f80 | 1295 | plist[0] = intern_c_string (":name"); |
2fe1edd1 | 1296 | plist[1] = args[charset_arg_name]; |
d67b4f80 | 1297 | plist[2] = intern_c_string (":dimension"); |
2fe1edd1 | 1298 | plist[3] = args[charset_arg_dimension]; |
d67b4f80 | 1299 | plist[4] = intern_c_string (":code-space"); |
2fe1edd1 | 1300 | plist[5] = args[charset_arg_code_space]; |
d67b4f80 | 1301 | plist[6] = intern_c_string (":iso-final-char"); |
2fe1edd1 | 1302 | plist[7] = args[charset_arg_iso_final]; |
d67b4f80 | 1303 | plist[8] = intern_c_string (":emacs-mule-id"); |
2fe1edd1 | 1304 | plist[9] = args[charset_arg_emacs_mule_id]; |
d67b4f80 | 1305 | plist[10] = intern_c_string (":ascii-compatible-p"); |
2fe1edd1 | 1306 | plist[11] = args[charset_arg_ascii_compatible_p]; |
d67b4f80 | 1307 | plist[12] = intern_c_string (":code-offset"); |
2fe1edd1 KH |
1308 | plist[13] = args[charset_arg_code_offset]; |
1309 | ||
1310 | args[charset_arg_plist] = Flist (14, plist); | |
1311 | Fdefine_charset_internal (charset_arg_max, args); | |
1312 | ||
1313 | return XINT (CHARSET_SYMBOL_ID (name)); | |
1314 | } | |
1315 | ||
1316 | ||
3263d5a2 KH |
1317 | DEFUN ("define-charset-alias", Fdefine_charset_alias, |
1318 | Sdefine_charset_alias, 2, 2, 0, | |
1319 | doc: /* Define ALIAS as an alias for charset CHARSET. */) | |
5842a27b | 1320 | (Lisp_Object alias, Lisp_Object charset) |
4ed46869 | 1321 | { |
3263d5a2 KH |
1322 | Lisp_Object attr; |
1323 | ||
1324 | CHECK_CHARSET_GET_ATTR (charset, attr); | |
1325 | Fputhash (alias, attr, Vcharset_hash_table); | |
528623a0 | 1326 | Vcharset_list = Fcons (alias, Vcharset_list); |
3263d5a2 KH |
1327 | return Qnil; |
1328 | } | |
4ed46869 | 1329 | |
4ed46869 | 1330 | |
3263d5a2 | 1331 | DEFUN ("charset-plist", Fcharset_plist, Scharset_plist, 1, 1, 0, |
56a46d1d | 1332 | doc: /* Return the property list of CHARSET. */) |
5842a27b | 1333 | (Lisp_Object charset) |
3263d5a2 KH |
1334 | { |
1335 | Lisp_Object attrs; | |
1336 | ||
1337 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1338 | return CHARSET_ATTR_PLIST (attrs); | |
1339 | } | |
1340 | ||
1341 | ||
1342 | DEFUN ("set-charset-plist", Fset_charset_plist, Sset_charset_plist, 2, 2, 0, | |
1343 | doc: /* Set CHARSET's property list to PLIST. */) | |
5842a27b | 1344 | (Lisp_Object charset, Lisp_Object plist) |
3263d5a2 KH |
1345 | { |
1346 | Lisp_Object attrs; | |
1347 | ||
1348 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1349 | CHARSET_ATTR_PLIST (attrs) = plist; | |
1350 | return plist; | |
1351 | } | |
1352 | ||
1353 | ||
dbbb237d | 1354 | DEFUN ("unify-charset", Funify_charset, Sunify_charset, 1, 3, 0, |
56a46d1d DL |
1355 | doc: /* Unify characters of CHARSET with Unicode. |
1356 | This means reading the relevant file and installing the table defined | |
dbbb237d KH |
1357 | by CHARSET's `:unify-map' property. |
1358 | ||
64165ae2 DL |
1359 | Optional second arg UNIFY-MAP is a file name string or a vector. It has |
1360 | the same meaning as the `:unify-map' attribute in the function | |
dbbb237d KH |
1361 | `define-charset' (which see). |
1362 | ||
1363 | Optional third argument DEUNIFY, if non-nil, means to de-unify CHARSET. */) | |
5842a27b | 1364 | (Lisp_Object charset, Lisp_Object unify_map, Lisp_Object deunify) |
8a73a704 | 1365 | { |
3263d5a2 KH |
1366 | int id; |
1367 | struct charset *cs; | |
8f924df7 | 1368 | |
3263d5a2 KH |
1369 | CHECK_CHARSET_GET_ID (charset, id); |
1370 | cs = CHARSET_FROM_ID (id); | |
dbbb237d KH |
1371 | if (NILP (deunify) |
1372 | ? CHARSET_UNIFIED_P (cs) && ! NILP (CHARSET_DEUNIFIER (cs)) | |
1373 | : ! CHARSET_UNIFIED_P (cs)) | |
3263d5a2 | 1374 | return Qnil; |
dbbb237d | 1375 | |
3263d5a2 | 1376 | CHARSET_UNIFIED_P (cs) = 0; |
dbbb237d KH |
1377 | if (NILP (deunify)) |
1378 | { | |
ecca2aad KH |
1379 | if (CHARSET_METHOD (cs) != CHARSET_METHOD_OFFSET |
1380 | || CHARSET_CODE_OFFSET (cs) < 0x110000) | |
8f924df7 | 1381 | error ("Can't unify charset: %s", SDATA (SYMBOL_NAME (charset))); |
dbbb237d KH |
1382 | if (NILP (unify_map)) |
1383 | unify_map = CHARSET_UNIFY_MAP (cs); | |
dbbb237d | 1384 | else |
ecca2aad KH |
1385 | { |
1386 | if (! STRINGP (unify_map) && ! VECTORP (unify_map)) | |
1387 | signal_error ("Bad unify-map", unify_map); | |
1388 | CHARSET_UNIFY_MAP (cs) = unify_map; | |
1389 | } | |
1390 | if (NILP (Vchar_unify_table)) | |
1391 | Vchar_unify_table = Fmake_char_table (Qnil, Qnil); | |
1392 | char_table_set_range (Vchar_unify_table, | |
1393 | cs->min_char, cs->max_char, charset); | |
dbbb237d KH |
1394 | CHARSET_UNIFIED_P (cs) = 1; |
1395 | } | |
1396 | else if (CHAR_TABLE_P (Vchar_unify_table)) | |
1397 | { | |
1398 | int min_code = CHARSET_MIN_CODE (cs); | |
1399 | int max_code = CHARSET_MAX_CODE (cs); | |
1400 | int min_char = DECODE_CHAR (cs, min_code); | |
1401 | int max_char = DECODE_CHAR (cs, max_code); | |
8f924df7 | 1402 | |
dbbb237d KH |
1403 | char_table_set_range (Vchar_unify_table, min_char, max_char, Qnil); |
1404 | } | |
8f924df7 | 1405 | |
3263d5a2 | 1406 | return Qnil; |
8a73a704 KH |
1407 | } |
1408 | ||
3fac5a51 KH |
1409 | DEFUN ("get-unused-iso-final-char", Fget_unused_iso_final_char, |
1410 | Sget_unused_iso_final_char, 2, 2, 0, | |
3263d5a2 | 1411 | doc: /* |
d0cf2d48 | 1412 | Return an unused ISO final char for a charset of DIMENSION and CHARS. |
fdb82f93 PJ |
1413 | DIMENSION is the number of bytes to represent a character: 1 or 2. |
1414 | CHARS is the number of characters in a dimension: 94 or 96. | |
1415 | ||
1416 | This final char is for private use, thus the range is `0' (48) .. `?' (63). | |
1721b6af | 1417 | If there's no unused final char for the specified kind of charset, |
fdb82f93 | 1418 | return nil. */) |
5842a27b | 1419 | (Lisp_Object dimension, Lisp_Object chars) |
3fac5a51 KH |
1420 | { |
1421 | int final_char; | |
1422 | ||
b7826503 PJ |
1423 | CHECK_NUMBER (dimension); |
1424 | CHECK_NUMBER (chars); | |
3263d5a2 KH |
1425 | if (XINT (dimension) != 1 && XINT (dimension) != 2 && XINT (dimension) != 3) |
1426 | args_out_of_range_3 (dimension, make_number (1), make_number (3)); | |
3fac5a51 | 1427 | if (XINT (chars) != 94 && XINT (chars) != 96) |
3263d5a2 | 1428 | args_out_of_range_3 (chars, make_number (94), make_number (96)); |
3fac5a51 | 1429 | for (final_char = '0'; final_char <= '?'; final_char++) |
3263d5a2 KH |
1430 | if (ISO_CHARSET_TABLE (XINT (dimension), XINT (chars), final_char) < 0) |
1431 | break; | |
3fac5a51 KH |
1432 | return (final_char <= '?' ? make_number (final_char) : Qnil); |
1433 | } | |
1434 | ||
3263d5a2 | 1435 | static void |
971de7fb | 1436 | check_iso_charset_parameter (Lisp_Object dimension, Lisp_Object chars, Lisp_Object final_char) |
4ed46869 | 1437 | { |
3263d5a2 KH |
1438 | CHECK_NATNUM (dimension); |
1439 | CHECK_NATNUM (chars); | |
1440 | CHECK_NATNUM (final_char); | |
4ed46869 | 1441 | |
3263d5a2 | 1442 | if (XINT (dimension) > 3) |
5fdb398c PE |
1443 | error ("Invalid DIMENSION %"pEd", it should be 1, 2, or 3", |
1444 | XINT (dimension)); | |
4ed46869 | 1445 | if (XINT (chars) != 94 && XINT (chars) != 96) |
5fdb398c | 1446 | error ("Invalid CHARS %"pEd", it should be 94 or 96", XINT (chars)); |
3263d5a2 | 1447 | if (XINT (final_char) < '0' || XINT (final_char) > '~') |
5fdb398c PE |
1448 | { |
1449 | unsigned char str[MAX_MULTIBYTE_LENGTH + 1]; | |
1450 | int len = CHAR_STRING (XINT (chars), str); | |
1451 | str[len] = '\0'; | |
1452 | error ("Invalid FINAL-CHAR %s, it should be `0'..`~'", str); | |
1453 | } | |
3263d5a2 KH |
1454 | } |
1455 | ||
1456 | ||
1457 | DEFUN ("declare-equiv-charset", Fdeclare_equiv_charset, Sdeclare_equiv_charset, | |
1458 | 4, 4, 0, | |
cefd8c4f KH |
1459 | doc: /* Declare an equivalent charset for ISO-2022 decoding. |
1460 | ||
1461 | On decoding by an ISO-2022 base coding system, when a charset | |
1462 | specified by DIMENSION, CHARS, and FINAL-CHAR is designated, behave as | |
1463 | if CHARSET is designated instead. */) | |
5842a27b | 1464 | (Lisp_Object dimension, Lisp_Object chars, Lisp_Object final_char, Lisp_Object charset) |
3263d5a2 KH |
1465 | { |
1466 | int id; | |
82215ce9 | 1467 | int chars_flag; |
4ed46869 | 1468 | |
3263d5a2 KH |
1469 | CHECK_CHARSET_GET_ID (charset, id); |
1470 | check_iso_charset_parameter (dimension, chars, final_char); | |
82215ce9 KH |
1471 | chars_flag = XINT (chars) == 96; |
1472 | ISO_CHARSET_TABLE (XINT (dimension), chars_flag, XINT (final_char)) = id; | |
4ed46869 KH |
1473 | return Qnil; |
1474 | } | |
1475 | ||
3263d5a2 | 1476 | |
2e344af3 KH |
1477 | /* Return information about charsets in the text at PTR of NBYTES |
1478 | bytes, which are NCHARS characters. The value is: | |
f6302ac9 | 1479 | |
cfe34140 | 1480 | 0: Each character is represented by one byte. This is always |
3263d5a2 KH |
1481 | true for a unibyte string. For a multibyte string, true if |
1482 | it contains only ASCII characters. | |
1483 | ||
28c026cd DL |
1484 | 1: No charsets other than ascii, control-1, and latin-1 are |
1485 | found. | |
1d67c29b | 1486 | |
3263d5a2 KH |
1487 | 2: Otherwise. |
1488 | */ | |
4ed46869 KH |
1489 | |
1490 | int | |
971de7fb | 1491 | string_xstring_p (Lisp_Object string) |
4ed46869 | 1492 | { |
8f924df7 KH |
1493 | const unsigned char *p = SDATA (string); |
1494 | const unsigned char *endp = p + SBYTES (string); | |
3263d5a2 | 1495 | |
8f924df7 | 1496 | if (SCHARS (string) == SBYTES (string)) |
3263d5a2 KH |
1497 | return 0; |
1498 | ||
3263d5a2 | 1499 | while (p < endp) |
0282eb69 | 1500 | { |
3263d5a2 | 1501 | int c = STRING_CHAR_ADVANCE (p); |
2e344af3 | 1502 | |
3cc67a4d | 1503 | if (c >= 0x100) |
3263d5a2 | 1504 | return 2; |
0282eb69 | 1505 | } |
3263d5a2 KH |
1506 | return 1; |
1507 | } | |
05505664 | 1508 | |
05505664 | 1509 | |
3263d5a2 | 1510 | /* Find charsets in the string at PTR of NCHARS and NBYTES. |
4ed46869 | 1511 | |
3cc67a4d KH |
1512 | CHARSETS is a vector. If Nth element is non-nil, it means the |
1513 | charset whose id is N is already found. | |
2e344af3 | 1514 | |
3263d5a2 | 1515 | It may lookup a translation table TABLE if supplied. */ |
2e344af3 | 1516 | |
3263d5a2 | 1517 | static void |
971de7fb | 1518 | find_charsets_in_text (const unsigned char *ptr, EMACS_INT nchars, EMACS_INT nbytes, Lisp_Object charsets, Lisp_Object table, int multibyte) |
3263d5a2 | 1519 | { |
dbbb237d | 1520 | const unsigned char *pend = ptr + nbytes; |
3263d5a2 KH |
1521 | |
1522 | if (nchars == nbytes) | |
3263d5a2 | 1523 | { |
3cc67a4d KH |
1524 | if (multibyte) |
1525 | ASET (charsets, charset_ascii, Qt); | |
1526 | else | |
1527 | while (ptr < pend) | |
1528 | { | |
1529 | int c = *ptr++; | |
1530 | ||
1531 | if (!NILP (table)) | |
1532 | c = translate_char (table, c); | |
1533 | if (ASCII_BYTE_P (c)) | |
1534 | ASET (charsets, charset_ascii, Qt); | |
1535 | else | |
1536 | ASET (charsets, charset_eight_bit, Qt); | |
1537 | } | |
1538 | } | |
1539 | else | |
1540 | { | |
1541 | while (ptr < pend) | |
3263d5a2 | 1542 | { |
3cc67a4d KH |
1543 | int c = STRING_CHAR_ADVANCE (ptr); |
1544 | struct charset *charset; | |
3263d5a2 | 1545 | |
3cc67a4d KH |
1546 | if (!NILP (table)) |
1547 | c = translate_char (table, c); | |
1548 | charset = CHAR_CHARSET (c); | |
1549 | ASET (charsets, CHARSET_ID (charset), Qt); | |
4ed46869 | 1550 | } |
4ed46869 | 1551 | } |
4ed46869 KH |
1552 | } |
1553 | ||
1554 | DEFUN ("find-charset-region", Ffind_charset_region, Sfind_charset_region, | |
23d2a7f1 | 1555 | 2, 3, 0, |
fdb82f93 PJ |
1556 | doc: /* Return a list of charsets in the region between BEG and END. |
1557 | BEG and END are buffer positions. | |
1558 | Optional arg TABLE if non-nil is a translation table to look up. | |
1559 | ||
fdb82f93 PJ |
1560 | If the current buffer is unibyte, the returned list may contain |
1561 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) | |
5842a27b | 1562 | (Lisp_Object beg, Lisp_Object end, Lisp_Object table) |
4ed46869 | 1563 | { |
3263d5a2 | 1564 | Lisp_Object charsets; |
42ca828e DL |
1565 | EMACS_INT from, from_byte, to, stop, stop_byte; |
1566 | int i; | |
4ed46869 | 1567 | Lisp_Object val; |
4b4deea2 | 1568 | int multibyte = ! NILP (BVAR (current_buffer, enable_multibyte_characters)); |
4ed46869 KH |
1569 | |
1570 | validate_region (&beg, &end); | |
1571 | from = XFASTINT (beg); | |
1572 | stop = to = XFASTINT (end); | |
6ae1f27e | 1573 | |
4ed46869 | 1574 | if (from < GPT && GPT < to) |
6ae1f27e RS |
1575 | { |
1576 | stop = GPT; | |
1577 | stop_byte = GPT_BYTE; | |
1578 | } | |
1579 | else | |
1580 | stop_byte = CHAR_TO_BYTE (stop); | |
1581 | ||
1582 | from_byte = CHAR_TO_BYTE (from); | |
1583 | ||
3263d5a2 | 1584 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
4ed46869 KH |
1585 | while (1) |
1586 | { | |
3263d5a2 | 1587 | find_charsets_in_text (BYTE_POS_ADDR (from_byte), stop - from, |
3cc67a4d KH |
1588 | stop_byte - from_byte, charsets, table, |
1589 | multibyte); | |
4ed46869 | 1590 | if (stop < to) |
6ae1f27e RS |
1591 | { |
1592 | from = stop, from_byte = stop_byte; | |
1593 | stop = to, stop_byte = CHAR_TO_BYTE (stop); | |
1594 | } | |
4ed46869 KH |
1595 | else |
1596 | break; | |
1597 | } | |
6ae1f27e | 1598 | |
4ed46869 | 1599 | val = Qnil; |
3263d5a2 | 1600 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1601 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1602 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1603 | return val; |
1604 | } | |
1605 | ||
1606 | DEFUN ("find-charset-string", Ffind_charset_string, Sfind_charset_string, | |
23d2a7f1 | 1607 | 1, 2, 0, |
fdb82f93 PJ |
1608 | doc: /* Return a list of charsets in STR. |
1609 | Optional arg TABLE if non-nil is a translation table to look up. | |
1610 | ||
fdb82f93 | 1611 | If STR is unibyte, the returned list may contain |
3263d5a2 | 1612 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) |
5842a27b | 1613 | (Lisp_Object str, Lisp_Object table) |
4ed46869 | 1614 | { |
3263d5a2 | 1615 | Lisp_Object charsets; |
4ed46869 KH |
1616 | int i; |
1617 | Lisp_Object val; | |
1618 | ||
b7826503 | 1619 | CHECK_STRING (str); |
87b089ad | 1620 | |
3263d5a2 | 1621 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
8f924df7 | 1622 | find_charsets_in_text (SDATA (str), SCHARS (str), SBYTES (str), |
3cc67a4d KH |
1623 | charsets, table, |
1624 | STRING_MULTIBYTE (str)); | |
4ed46869 | 1625 | val = Qnil; |
3263d5a2 | 1626 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1627 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1628 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1629 | return val; |
1630 | } | |
2e344af3 | 1631 | |
4ed46869 | 1632 | \f |
3263d5a2 | 1633 | |
ecca2aad KH |
1634 | /* Return a unified character code for C (>= 0x110000). VAL is a |
1635 | value of Vchar_unify_table for C; i.e. it is nil, an integer, or a | |
1636 | charset symbol. */ | |
1637 | int | |
971de7fb | 1638 | maybe_unify_char (int c, Lisp_Object val) |
ecca2aad KH |
1639 | { |
1640 | struct charset *charset; | |
1641 | ||
1642 | if (INTEGERP (val)) | |
1643 | return XINT (val); | |
1644 | if (NILP (val)) | |
1645 | return c; | |
1646 | ||
1647 | CHECK_CHARSET_GET_CHARSET (val, charset); | |
1648 | load_charset (charset, 1); | |
1649 | if (! inhibit_load_charset_map) | |
1650 | { | |
1651 | val = CHAR_TABLE_REF (Vchar_unify_table, c); | |
1652 | if (! NILP (val)) | |
1653 | c = XINT (val); | |
1654 | } | |
1655 | else | |
1656 | { | |
1657 | int code_index = c - CHARSET_CODE_OFFSET (charset); | |
1658 | int unified = GET_TEMP_CHARSET_WORK_DECODER (code_index); | |
1659 | ||
1660 | if (unified > 0) | |
1661 | c = unified; | |
1662 | } | |
1663 | return c; | |
1664 | } | |
1665 | ||
1666 | ||
3263d5a2 KH |
1667 | /* Return a character correponding to the code-point CODE of |
1668 | CHARSET. */ | |
1669 | ||
1670 | int | |
971de7fb | 1671 | decode_char (struct charset *charset, unsigned int code) |
4ed46869 | 1672 | { |
3263d5a2 KH |
1673 | int c, char_index; |
1674 | enum charset_method method = CHARSET_METHOD (charset); | |
ac4137cc | 1675 | |
3263d5a2 KH |
1676 | if (code < CHARSET_MIN_CODE (charset) || code > CHARSET_MAX_CODE (charset)) |
1677 | return -1; | |
4ed46869 | 1678 | |
374c5cfd | 1679 | if (method == CHARSET_METHOD_SUBSET) |
2e344af3 | 1680 | { |
374c5cfd KH |
1681 | Lisp_Object subset_info; |
1682 | ||
1683 | subset_info = CHARSET_SUBSET (charset); | |
1684 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1685 | code -= XINT (AREF (subset_info, 3)); | |
1686 | if (code < XFASTINT (AREF (subset_info, 1)) | |
1687 | || code > XFASTINT (AREF (subset_info, 2))) | |
1688 | c = -1; | |
1689 | else | |
1690 | c = DECODE_CHAR (charset, code); | |
2e344af3 | 1691 | } |
374c5cfd | 1692 | else if (method == CHARSET_METHOD_SUPERSET) |
2e344af3 | 1693 | { |
3263d5a2 | 1694 | Lisp_Object parents; |
4ed46869 | 1695 | |
374c5cfd | 1696 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 KH |
1697 | c = -1; |
1698 | for (; CONSP (parents); parents = XCDR (parents)) | |
1699 | { | |
1700 | int id = XINT (XCAR (XCAR (parents))); | |
1701 | int code_offset = XINT (XCDR (XCAR (parents))); | |
374c5cfd | 1702 | unsigned this_code = code - code_offset; |
4ed46869 | 1703 | |
3263d5a2 KH |
1704 | charset = CHARSET_FROM_ID (id); |
1705 | if ((c = DECODE_CHAR (charset, this_code)) >= 0) | |
1706 | break; | |
1707 | } | |
1708 | } | |
1709 | else | |
ac4137cc | 1710 | { |
3263d5a2 | 1711 | char_index = CODE_POINT_TO_INDEX (charset, code); |
69f8de5b KH |
1712 | if (char_index < 0) |
1713 | return -1; | |
4ed46869 | 1714 | |
3263d5a2 | 1715 | if (method == CHARSET_METHOD_MAP) |
ac4137cc | 1716 | { |
3263d5a2 | 1717 | Lisp_Object decoder; |
4ed46869 | 1718 | |
3263d5a2 KH |
1719 | decoder = CHARSET_DECODER (charset); |
1720 | if (! VECTORP (decoder)) | |
ecca2aad KH |
1721 | { |
1722 | load_charset (charset, 1); | |
1723 | decoder = CHARSET_DECODER (charset); | |
1724 | } | |
1725 | if (VECTORP (decoder)) | |
1726 | c = XINT (AREF (decoder, char_index)); | |
1727 | else | |
1728 | c = GET_TEMP_CHARSET_WORK_DECODER (char_index); | |
ac4137cc | 1729 | } |
ecca2aad | 1730 | else /* method == CHARSET_METHOD_OFFSET */ |
ac4137cc | 1731 | { |
3263d5a2 | 1732 | c = char_index + CHARSET_CODE_OFFSET (charset); |
ecca2aad KH |
1733 | if (CHARSET_UNIFIED_P (charset) |
1734 | && c > MAX_UNICODE_CHAR) | |
1735 | MAYBE_UNIFY_CHAR (c); | |
ac4137cc KH |
1736 | } |
1737 | } | |
4ed46869 | 1738 | |
3263d5a2 | 1739 | return c; |
90d7b74e KH |
1740 | } |
1741 | ||
374c5cfd KH |
1742 | /* Variable used temporarily by the macro ENCODE_CHAR. */ |
1743 | Lisp_Object charset_work; | |
4ed46869 | 1744 | |
3263d5a2 | 1745 | /* Return a code-point of CHAR in CHARSET. If CHAR doesn't belong to |
28c026cd DL |
1746 | CHARSET, return CHARSET_INVALID_CODE (CHARSET). If STRICT is true, |
1747 | use CHARSET's strict_max_char instead of max_char. */ | |
4ed46869 | 1748 | |
3263d5a2 | 1749 | unsigned |
971de7fb | 1750 | encode_char (struct charset *charset, int c) |
9d3d8cba | 1751 | { |
3263d5a2 KH |
1752 | unsigned code; |
1753 | enum charset_method method = CHARSET_METHOD (charset); | |
9d3d8cba | 1754 | |
3263d5a2 | 1755 | if (CHARSET_UNIFIED_P (charset)) |
ac4137cc | 1756 | { |
6809ca75 | 1757 | Lisp_Object deunifier; |
ecca2aad | 1758 | int code_index = -1; |
4ed46869 | 1759 | |
3263d5a2 KH |
1760 | deunifier = CHARSET_DEUNIFIER (charset); |
1761 | if (! CHAR_TABLE_P (deunifier)) | |
ac4137cc | 1762 | { |
ecca2aad | 1763 | load_charset (charset, 2); |
3263d5a2 | 1764 | deunifier = CHARSET_DEUNIFIER (charset); |
ac4137cc | 1765 | } |
ecca2aad KH |
1766 | if (CHAR_TABLE_P (deunifier)) |
1767 | { | |
1768 | Lisp_Object deunified = CHAR_TABLE_REF (deunifier, c); | |
1769 | ||
1770 | if (INTEGERP (deunified)) | |
1771 | code_index = XINT (deunified); | |
1772 | } | |
1773 | else | |
1774 | { | |
1775 | code_index = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
1776 | } | |
1777 | if (code_index >= 0) | |
1778 | c = CHARSET_CODE_OFFSET (charset) + code_index; | |
ac4137cc | 1779 | } |
9d3d8cba | 1780 | |
374c5cfd KH |
1781 | if (method == CHARSET_METHOD_SUBSET) |
1782 | { | |
1783 | Lisp_Object subset_info; | |
1784 | struct charset *this_charset; | |
1785 | ||
1786 | subset_info = CHARSET_SUBSET (charset); | |
1787 | this_charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1788 | code = ENCODE_CHAR (this_charset, c); | |
1789 | if (code == CHARSET_INVALID_CODE (this_charset) | |
1790 | || code < XFASTINT (AREF (subset_info, 1)) | |
1791 | || code > XFASTINT (AREF (subset_info, 2))) | |
1792 | return CHARSET_INVALID_CODE (charset); | |
1793 | code += XINT (AREF (subset_info, 3)); | |
1794 | return code; | |
1795 | } | |
9d3d8cba | 1796 | |
374c5cfd | 1797 | if (method == CHARSET_METHOD_SUPERSET) |
859f2b3c | 1798 | { |
3263d5a2 | 1799 | Lisp_Object parents; |
d2665018 | 1800 | |
374c5cfd | 1801 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 | 1802 | for (; CONSP (parents); parents = XCDR (parents)) |
beeedaad | 1803 | { |
3263d5a2 KH |
1804 | int id = XINT (XCAR (XCAR (parents))); |
1805 | int code_offset = XINT (XCDR (XCAR (parents))); | |
1806 | struct charset *this_charset = CHARSET_FROM_ID (id); | |
d2665018 | 1807 | |
3263d5a2 | 1808 | code = ENCODE_CHAR (this_charset, c); |
dbbb237d KH |
1809 | if (code != CHARSET_INVALID_CODE (this_charset)) |
1810 | return code + code_offset; | |
beeedaad | 1811 | } |
3263d5a2 KH |
1812 | return CHARSET_INVALID_CODE (charset); |
1813 | } | |
1bcc1567 | 1814 | |
15c85a88 KH |
1815 | if (! CHARSET_FAST_MAP_REF ((c), charset->fast_map) |
1816 | || c < CHARSET_MIN_CHAR (charset) || c > CHARSET_MAX_CHAR (charset)) | |
1817 | return CHARSET_INVALID_CODE (charset); | |
1bcc1567 | 1818 | |
3263d5a2 | 1819 | if (method == CHARSET_METHOD_MAP) |
3f62427c | 1820 | { |
3263d5a2 | 1821 | Lisp_Object encoder; |
beeedaad | 1822 | Lisp_Object val; |
9b6a601f | 1823 | |
3263d5a2 KH |
1824 | encoder = CHARSET_ENCODER (charset); |
1825 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
b8ebe9dd KH |
1826 | { |
1827 | load_charset (charset, 2); | |
1828 | encoder = CHARSET_ENCODER (charset); | |
1829 | } | |
1830 | if (CHAR_TABLE_P (encoder)) | |
ecca2aad KH |
1831 | { |
1832 | val = CHAR_TABLE_REF (encoder, c); | |
1833 | if (NILP (val)) | |
1834 | return CHARSET_INVALID_CODE (charset); | |
1835 | code = XINT (val); | |
1836 | if (! CHARSET_COMPACT_CODES_P (charset)) | |
1837 | code = INDEX_TO_CODE_POINT (charset, code); | |
1838 | } | |
1839 | else | |
1840 | { | |
1841 | code = GET_TEMP_CHARSET_WORK_ENCODER (c); | |
51b59d79 | 1842 | code = INDEX_TO_CODE_POINT (charset, code); |
ecca2aad | 1843 | } |
3263d5a2 | 1844 | } |
820ee249 | 1845 | else /* method == CHARSET_METHOD_OFFSET */ |
beeedaad | 1846 | { |
ecca2aad KH |
1847 | int code_index = c - CHARSET_CODE_OFFSET (charset); |
1848 | ||
1849 | code = INDEX_TO_CODE_POINT (charset, code_index); | |
3f62427c | 1850 | } |
8ac5a9cc | 1851 | |
3263d5a2 | 1852 | return code; |
4ed46869 KH |
1853 | } |
1854 | ||
4ed46869 | 1855 | |
3263d5a2 KH |
1856 | DEFUN ("decode-char", Fdecode_char, Sdecode_char, 2, 3, 0, |
1857 | doc: /* Decode the pair of CHARSET and CODE-POINT into a character. | |
1858 | Return nil if CODE-POINT is not valid in CHARSET. | |
4ed46869 | 1859 | |
3263d5a2 | 1860 | CODE-POINT may be a cons (HIGHER-16-BIT-VALUE . LOWER-16-BIT-VALUE). |
859f2b3c | 1861 | |
3263d5a2 | 1862 | Optional argument RESTRICTION specifies a way to map the pair of CCS |
d0cf2d48 | 1863 | and CODE-POINT to a character. Currently not supported and just ignored. */) |
5842a27b | 1864 | (Lisp_Object charset, Lisp_Object code_point, Lisp_Object restriction) |
4ed46869 | 1865 | { |
3263d5a2 KH |
1866 | int c, id; |
1867 | unsigned code; | |
1868 | struct charset *charsetp; | |
859f2b3c | 1869 | |
3263d5a2 KH |
1870 | CHECK_CHARSET_GET_ID (charset, id); |
1871 | if (CONSP (code_point)) | |
1872 | { | |
8f924df7 KH |
1873 | CHECK_NATNUM_CAR (code_point); |
1874 | CHECK_NATNUM_CDR (code_point); | |
69f8de5b | 1875 | code = (XINT (XCAR (code_point)) << 16) | (XINT (XCDR (code_point))); |
3263d5a2 | 1876 | } |
4ed46869 KH |
1877 | else |
1878 | { | |
3263d5a2 KH |
1879 | CHECK_NATNUM (code_point); |
1880 | code = XINT (code_point); | |
4ed46869 | 1881 | } |
3263d5a2 KH |
1882 | charsetp = CHARSET_FROM_ID (id); |
1883 | c = DECODE_CHAR (charsetp, code); | |
1884 | return (c >= 0 ? make_number (c) : Qnil); | |
4ed46869 KH |
1885 | } |
1886 | ||
859f2b3c | 1887 | |
3263d5a2 KH |
1888 | DEFUN ("encode-char", Fencode_char, Sencode_char, 2, 3, 0, |
1889 | doc: /* Encode the character CH into a code-point of CHARSET. | |
1890 | Return nil if CHARSET doesn't include CH. | |
17e7ef1b | 1891 | |
d0cf2d48 | 1892 | Optional argument RESTRICTION specifies a way to map CH to a |
3263d5a2 | 1893 | code-point in CCS. Currently not supported and just ignored. */) |
5842a27b | 1894 | (Lisp_Object ch, Lisp_Object charset, Lisp_Object restriction) |
4ed46869 | 1895 | { |
16fed1fc | 1896 | int id; |
3263d5a2 KH |
1897 | unsigned code; |
1898 | struct charset *charsetp; | |
046b1f03 | 1899 | |
3263d5a2 KH |
1900 | CHECK_CHARSET_GET_ID (charset, id); |
1901 | CHECK_NATNUM (ch); | |
3263d5a2 | 1902 | charsetp = CHARSET_FROM_ID (id); |
16fed1fc | 1903 | code = ENCODE_CHAR (charsetp, XINT (ch)); |
3263d5a2 KH |
1904 | if (code == CHARSET_INVALID_CODE (charsetp)) |
1905 | return Qnil; | |
1906 | if (code > 0x7FFFFFF) | |
1907 | return Fcons (make_number (code >> 16), make_number (code & 0xFFFF)); | |
1908 | return make_number (code); | |
beeedaad KH |
1909 | } |
1910 | ||
beeedaad | 1911 | |
b121a744 KH |
1912 | DEFUN ("make-char", Fmake_char, Smake_char, 1, 5, 0, |
1913 | doc: | |
1914 | /* Return a character of CHARSET whose position codes are CODEn. | |
1915 | ||
1916 | CODE1 through CODE4 are optional, but if you don't supply sufficient | |
1917 | position codes, it is assumed that the minimum code in each dimension | |
04c2f2c5 | 1918 | is specified. */) |
5842a27b | 1919 | (Lisp_Object charset, Lisp_Object code1, Lisp_Object code2, Lisp_Object code3, Lisp_Object code4) |
beeedaad | 1920 | { |
3263d5a2 KH |
1921 | int id, dimension; |
1922 | struct charset *charsetp; | |
b121a744 KH |
1923 | unsigned code; |
1924 | int c; | |
87b089ad | 1925 | |
3263d5a2 KH |
1926 | CHECK_CHARSET_GET_ID (charset, id); |
1927 | charsetp = CHARSET_FROM_ID (id); | |
4ed46869 | 1928 | |
b121a744 KH |
1929 | dimension = CHARSET_DIMENSION (charsetp); |
1930 | if (NILP (code1)) | |
d47073ca KH |
1931 | code = (CHARSET_ASCII_COMPATIBLE_P (charsetp) |
1932 | ? 0 : CHARSET_MIN_CODE (charsetp)); | |
3263d5a2 | 1933 | else |
859f2b3c | 1934 | { |
b121a744 KH |
1935 | CHECK_NATNUM (code1); |
1936 | if (XFASTINT (code1) >= 0x100) | |
1937 | args_out_of_range (make_number (0xFF), code1); | |
1938 | code = XFASTINT (code1); | |
859f2b3c | 1939 | |
b0a1e45e | 1940 | if (dimension > 1) |
beeedaad | 1941 | { |
b121a744 | 1942 | code <<= 8; |
b0a1e45e KH |
1943 | if (NILP (code2)) |
1944 | code |= charsetp->code_space[(dimension - 2) * 4]; | |
beeedaad | 1945 | else |
b121a744 | 1946 | { |
b0a1e45e KH |
1947 | CHECK_NATNUM (code2); |
1948 | if (XFASTINT (code2) >= 0x100) | |
1949 | args_out_of_range (make_number (0xFF), code2); | |
1950 | code |= XFASTINT (code2); | |
b121a744 | 1951 | } |
99529c2c | 1952 | |
b0a1e45e | 1953 | if (dimension > 2) |
b121a744 KH |
1954 | { |
1955 | code <<= 8; | |
b0a1e45e KH |
1956 | if (NILP (code3)) |
1957 | code |= charsetp->code_space[(dimension - 3) * 4]; | |
b121a744 KH |
1958 | else |
1959 | { | |
b0a1e45e KH |
1960 | CHECK_NATNUM (code3); |
1961 | if (XFASTINT (code3) >= 0x100) | |
1962 | args_out_of_range (make_number (0xFF), code3); | |
1963 | code |= XFASTINT (code3); | |
1964 | } | |
1965 | ||
1966 | if (dimension > 3) | |
1967 | { | |
1968 | code <<= 8; | |
1969 | if (NILP (code4)) | |
1970 | code |= charsetp->code_space[0]; | |
1971 | else | |
1972 | { | |
1973 | CHECK_NATNUM (code4); | |
1974 | if (XFASTINT (code4) >= 0x100) | |
1975 | args_out_of_range (make_number (0xFF), code4); | |
1976 | code |= XFASTINT (code4); | |
1977 | } | |
b121a744 KH |
1978 | } |
1979 | } | |
beeedaad | 1980 | } |
859f2b3c | 1981 | } |
beeedaad | 1982 | |
b121a744 KH |
1983 | if (CHARSET_ISO_FINAL (charsetp) >= 0) |
1984 | code &= 0x7F7F7F7F; | |
1985 | c = DECODE_CHAR (charsetp, code); | |
1986 | if (c < 0) | |
1987 | error ("Invalid code(s)"); | |
3263d5a2 | 1988 | return make_number (c); |
4ed46869 KH |
1989 | } |
1990 | ||
beeedaad | 1991 | |
3263d5a2 KH |
1992 | /* Return the first charset in CHARSET_LIST that contains C. |
1993 | CHARSET_LIST is a list of charset IDs. If it is nil, use | |
1994 | Vcharset_ordered_list. */ | |
beeedaad | 1995 | |
3263d5a2 | 1996 | struct charset * |
971de7fb | 1997 | char_charset (int c, Lisp_Object charset_list, unsigned int *code_return) |
2e344af3 | 1998 | { |
8a1816bb KH |
1999 | int maybe_null = 0; |
2000 | ||
3263d5a2 KH |
2001 | if (NILP (charset_list)) |
2002 | charset_list = Vcharset_ordered_list; | |
8a1816bb KH |
2003 | else |
2004 | maybe_null = 1; | |
beeedaad | 2005 | |
6c652beb | 2006 | while (CONSP (charset_list)) |
2e344af3 | 2007 | { |
3263d5a2 KH |
2008 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (charset_list))); |
2009 | unsigned code = ENCODE_CHAR (charset, c); | |
beeedaad | 2010 | |
3263d5a2 | 2011 | if (code != CHARSET_INVALID_CODE (charset)) |
beeedaad | 2012 | { |
3263d5a2 KH |
2013 | if (code_return) |
2014 | *code_return = code; | |
2015 | return charset; | |
3f62427c | 2016 | } |
3263d5a2 | 2017 | charset_list = XCDR (charset_list); |
c0be27fd KH |
2018 | if (! maybe_null |
2019 | && c <= MAX_UNICODE_CHAR | |
2020 | && EQ (charset_list, Vcharset_non_preferred_head)) | |
6c652beb | 2021 | return CHARSET_FROM_ID (charset_unicode); |
3f62427c | 2022 | } |
8a1816bb KH |
2023 | return (maybe_null ? NULL |
2024 | : c <= MAX_5_BYTE_CHAR ? CHARSET_FROM_ID (charset_emacs) | |
6a9c90ec | 2025 | : CHARSET_FROM_ID (charset_eight_bit)); |
3f62427c KH |
2026 | } |
2027 | ||
2e344af3 | 2028 | |
3263d5a2 | 2029 | DEFUN ("split-char", Fsplit_char, Ssplit_char, 1, 1, 0, |
3cc67a4d | 2030 | doc: |
d0cf2d48 | 2031 | /*Return list of charset and one to four position-codes of CH. |
3cc67a4d KH |
2032 | The charset is decided by the current priority order of charsets. |
2033 | A position-code is a byte value of each dimension of the code-point of | |
d0cf2d48 | 2034 | CH in the charset. */) |
5842a27b | 2035 | (Lisp_Object ch) |
4ed46869 | 2036 | { |
3263d5a2 KH |
2037 | struct charset *charset; |
2038 | int c, dimension; | |
2039 | unsigned code; | |
4ed46869 KH |
2040 | Lisp_Object val; |
2041 | ||
3263d5a2 KH |
2042 | CHECK_CHARACTER (ch); |
2043 | c = XFASTINT (ch); | |
2044 | charset = CHAR_CHARSET (c); | |
2045 | if (! charset) | |
3cc67a4d | 2046 | abort (); |
3263d5a2 KH |
2047 | code = ENCODE_CHAR (charset, c); |
2048 | if (code == CHARSET_INVALID_CODE (charset)) | |
2049 | abort (); | |
2050 | dimension = CHARSET_DIMENSION (charset); | |
3cc67a4d KH |
2051 | for (val = Qnil; dimension > 0; dimension--) |
2052 | { | |
2053 | val = Fcons (make_number (code & 0xFF), val); | |
2054 | code >>= 8; | |
2055 | } | |
3263d5a2 | 2056 | return Fcons (CHARSET_NAME (charset), val); |
4ed46869 KH |
2057 | } |
2058 | ||
740f080d | 2059 | |
4cb75c4b KH |
2060 | DEFUN ("char-charset", Fchar_charset, Schar_charset, 1, 2, 0, |
2061 | doc: /* Return the charset of highest priority that contains CH. | |
2062 | If optional 2nd arg RESTRICTION is non-nil, it is a list of charsets | |
2063 | from which to find the charset. It may also be a coding system. In | |
2064 | that case, find the charset from what supported by that coding system. */) | |
5842a27b | 2065 | (Lisp_Object ch, Lisp_Object restriction) |
4ed46869 | 2066 | { |
3263d5a2 | 2067 | struct charset *charset; |
4ed46869 | 2068 | |
3263d5a2 | 2069 | CHECK_CHARACTER (ch); |
4cb75c4b KH |
2070 | if (NILP (restriction)) |
2071 | charset = CHAR_CHARSET (XINT (ch)); | |
2072 | else | |
2073 | { | |
4cb75c4b KH |
2074 | if (CONSP (restriction)) |
2075 | { | |
7a84eee5 KH |
2076 | int c = XFASTINT (ch); |
2077 | ||
2078 | for (; CONSP (restriction); restriction = XCDR (restriction)) | |
4cb75c4b | 2079 | { |
f6095868 | 2080 | struct charset *rcharset; |
4cb75c4b | 2081 | |
f6095868 PE |
2082 | CHECK_CHARSET_GET_CHARSET (XCAR (restriction), rcharset); |
2083 | if (ENCODE_CHAR (rcharset, c) != CHARSET_INVALID_CODE (rcharset)) | |
7a84eee5 | 2084 | return XCAR (restriction); |
4cb75c4b | 2085 | } |
7a84eee5 | 2086 | return Qnil; |
4cb75c4b | 2087 | } |
7a84eee5 KH |
2088 | restriction = coding_system_charset_list (restriction); |
2089 | charset = char_charset (XINT (ch), restriction, NULL); | |
4cb75c4b KH |
2090 | if (! charset) |
2091 | return Qnil; | |
2092 | } | |
3263d5a2 | 2093 | return (CHARSET_NAME (charset)); |
4ed46869 KH |
2094 | } |
2095 | ||
17e7ef1b | 2096 | |
3263d5a2 KH |
2097 | DEFUN ("charset-after", Fcharset_after, Scharset_after, 0, 1, 0, |
2098 | doc: /* | |
2099 | Return charset of a character in the current buffer at position POS. | |
2100 | If POS is nil, it defauls to the current point. | |
2101 | If POS is out of range, the value is nil. */) | |
5842a27b | 2102 | (Lisp_Object pos) |
2e344af3 | 2103 | { |
3263d5a2 KH |
2104 | Lisp_Object ch; |
2105 | struct charset *charset; | |
046b1f03 | 2106 | |
3263d5a2 KH |
2107 | ch = Fchar_after (pos); |
2108 | if (! INTEGERP (ch)) | |
2109 | return ch; | |
2110 | charset = CHAR_CHARSET (XINT (ch)); | |
2111 | return (CHARSET_NAME (charset)); | |
6ae1f27e | 2112 | } |
9036eb45 | 2113 | |
87b089ad | 2114 | |
3263d5a2 KH |
2115 | DEFUN ("iso-charset", Fiso_charset, Siso_charset, 3, 3, 0, |
2116 | doc: /* | |
2117 | Return charset of ISO's specification DIMENSION, CHARS, and FINAL-CHAR. | |
2118 | ||
2119 | ISO 2022's designation sequence (escape sequence) distinguishes charsets | |
2120 | by their DIMENSION, CHARS, and FINAL-CHAR, | |
d0cf2d48 | 2121 | whereas Emacs distinguishes them by charset symbol. |
3263d5a2 KH |
2122 | See the documentation of the function `charset-info' for the meanings of |
2123 | DIMENSION, CHARS, and FINAL-CHAR. */) | |
5842a27b | 2124 | (Lisp_Object dimension, Lisp_Object chars, Lisp_Object final_char) |
6ae1f27e | 2125 | { |
3263d5a2 | 2126 | int id; |
82215ce9 | 2127 | int chars_flag; |
a8a35e61 | 2128 | |
3263d5a2 | 2129 | check_iso_charset_parameter (dimension, chars, final_char); |
82215ce9 KH |
2130 | chars_flag = XFASTINT (chars) == 96; |
2131 | id = ISO_CHARSET_TABLE (XFASTINT (dimension), chars_flag, | |
3263d5a2 KH |
2132 | XFASTINT (final_char)); |
2133 | return (id >= 0 ? CHARSET_NAME (CHARSET_FROM_ID (id)) : Qnil); | |
046b1f03 RS |
2134 | } |
2135 | ||
87b089ad | 2136 | |
3263d5a2 KH |
2137 | DEFUN ("clear-charset-maps", Fclear_charset_maps, Sclear_charset_maps, |
2138 | 0, 0, 0, | |
2139 | doc: /* | |
ecca2aad KH |
2140 | Internal use only. |
2141 | Clear temporary charset mapping tables. | |
2142 | It should be called only from temacs invoked for dumping. */) | |
5842a27b | 2143 | (void) |
87b089ad | 2144 | { |
ecca2aad | 2145 | if (temp_charset_work) |
87b089ad | 2146 | { |
ecca2aad KH |
2147 | free (temp_charset_work); |
2148 | temp_charset_work = NULL; | |
2e344af3 | 2149 | } |
2e344af3 | 2150 | |
ecca2aad KH |
2151 | if (CHAR_TABLE_P (Vchar_unify_table)) |
2152 | Foptimize_char_table (Vchar_unify_table, Qnil); | |
740f080d | 2153 | |
3263d5a2 | 2154 | return Qnil; |
740f080d KH |
2155 | } |
2156 | ||
8ddf5e57 DL |
2157 | DEFUN ("charset-priority-list", Fcharset_priority_list, |
2158 | Scharset_priority_list, 0, 1, 0, | |
2159 | doc: /* Return the list of charsets ordered by priority. | |
2160 | HIGHESTP non-nil means just return the highest priority one. */) | |
5842a27b | 2161 | (Lisp_Object highestp) |
2e344af3 | 2162 | { |
8ddf5e57 | 2163 | Lisp_Object val = Qnil, list = Vcharset_ordered_list; |
2e344af3 | 2164 | |
8ddf5e57 | 2165 | if (!NILP (highestp)) |
16fed1fc | 2166 | return CHARSET_NAME (CHARSET_FROM_ID (XINT (Fcar (list)))); |
2e344af3 | 2167 | |
8ddf5e57 | 2168 | while (!NILP (list)) |
2e344af3 | 2169 | { |
16fed1fc | 2170 | val = Fcons (CHARSET_NAME (CHARSET_FROM_ID (XINT (XCAR (list)))), val); |
8ddf5e57 | 2171 | list = XCDR (list); |
2e344af3 | 2172 | } |
8ddf5e57 | 2173 | return Fnreverse (val); |
2e344af3 KH |
2174 | } |
2175 | ||
8ddf5e57 DL |
2176 | DEFUN ("set-charset-priority", Fset_charset_priority, Sset_charset_priority, |
2177 | 1, MANY, 0, | |
2178 | doc: /* Assign higher priority to the charsets given as arguments. | |
2179 | usage: (set-charset-priority &rest charsets) */) | |
c5101a77 | 2180 | (size_t nargs, Lisp_Object *args) |
4ed46869 | 2181 | { |
af7c60ca | 2182 | Lisp_Object new_head, old_list, arglist[2]; |
321c819c | 2183 | Lisp_Object list_2022, list_emacs_mule; |
c5101a77 PE |
2184 | size_t i; |
2185 | int id; | |
4ed46869 | 2186 | |
8ddf5e57 | 2187 | old_list = Fcopy_sequence (Vcharset_ordered_list); |
af7c60ca | 2188 | new_head = Qnil; |
8ddf5e57 | 2189 | for (i = 0; i < nargs; i++) |
4ed46869 | 2190 | { |
8ddf5e57 | 2191 | CHECK_CHARSET_GET_ID (args[i], id); |
af7c60ca KH |
2192 | if (! NILP (Fmemq (make_number (id), old_list))) |
2193 | { | |
2194 | old_list = Fdelq (make_number (id), old_list); | |
2195 | new_head = Fcons (make_number (id), new_head); | |
2196 | } | |
5729c92f | 2197 | } |
8ddf5e57 | 2198 | arglist[0] = Fnreverse (new_head); |
6a9c90ec | 2199 | arglist[1] = Vcharset_non_preferred_head = old_list; |
8ddf5e57 | 2200 | Vcharset_ordered_list = Fnconc (2, arglist); |
dbbb237d | 2201 | charset_ordered_list_tick++; |
5729c92f | 2202 | |
6809ca75 | 2203 | charset_unibyte = -1; |
321c819c | 2204 | for (old_list = Vcharset_ordered_list, list_2022 = list_emacs_mule = Qnil; |
d017b41e | 2205 | CONSP (old_list); old_list = XCDR (old_list)) |
5729c92f | 2206 | { |
e77415b0 | 2207 | if (! NILP (Fmemq (XCAR (old_list), Viso_2022_charset_list))) |
321c819c KH |
2208 | list_2022 = Fcons (XCAR (old_list), list_2022); |
2209 | if (! NILP (Fmemq (XCAR (old_list), Vemacs_mule_charset_list))) | |
2210 | list_emacs_mule = Fcons (XCAR (old_list), list_emacs_mule); | |
6809ca75 KH |
2211 | if (charset_unibyte < 0) |
2212 | { | |
2213 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (old_list))); | |
2214 | ||
2215 | if (CHARSET_DIMENSION (charset) == 1 | |
2216 | && CHARSET_ASCII_COMPATIBLE_P (charset) | |
2217 | && CHARSET_MAX_CHAR (charset) >= 0x80) | |
2218 | charset_unibyte = CHARSET_ID (charset); | |
2219 | } | |
4ed46869 | 2220 | } |
321c819c KH |
2221 | Viso_2022_charset_list = Fnreverse (list_2022); |
2222 | Vemacs_mule_charset_list = Fnreverse (list_emacs_mule); | |
6809ca75 KH |
2223 | if (charset_unibyte < 0) |
2224 | charset_unibyte = charset_iso_8859_1; | |
4ed46869 | 2225 | |
8ddf5e57 | 2226 | return Qnil; |
4ed46869 KH |
2227 | } |
2228 | ||
d5b33309 KH |
2229 | DEFUN ("charset-id-internal", Fcharset_id_internal, Scharset_id_internal, |
2230 | 0, 1, 0, | |
2231 | doc: /* Internal use only. | |
2232 | Return charset identification number of CHARSET. */) | |
5842a27b | 2233 | (Lisp_Object charset) |
4ed46869 | 2234 | { |
d5b33309 | 2235 | int id; |
4ed46869 | 2236 | |
d5b33309 KH |
2237 | CHECK_CHARSET_GET_ID (charset, id); |
2238 | return make_number (id); | |
4ed46869 KH |
2239 | } |
2240 | ||
7a84eee5 KH |
2241 | struct charset_sort_data |
2242 | { | |
2243 | Lisp_Object charset; | |
2244 | int id; | |
2245 | int priority; | |
2246 | }; | |
2247 | ||
2248 | static int | |
2249 | charset_compare (const void *d1, const void *d2) | |
2250 | { | |
2251 | const struct charset_sort_data *data1 = d1, *data2 = d2; | |
2252 | return (data1->priority - data2->priority); | |
2253 | } | |
2254 | ||
2255 | DEFUN ("sort-charsets", Fsort_charsets, Ssort_charsets, 1, 1, 0, | |
2256 | doc: /* Sort charset list CHARSETS by a priority of each charset. | |
2257 | Return the sorted list. CHARSETS is modified by side effects. | |
2258 | See also `charset-priority-list' and `set-charset-priority'. */) | |
2259 | (Lisp_Object charsets) | |
2260 | { | |
2261 | Lisp_Object len = Flength (charsets); | |
2262 | int n = XFASTINT (len), i, j, done; | |
2263 | Lisp_Object tail, elt, attrs; | |
2264 | struct charset_sort_data *sort_data; | |
726929c4 | 2265 | int id, min_id = INT_MAX, max_id = INT_MIN; |
7a84eee5 KH |
2266 | USE_SAFE_ALLOCA; |
2267 | ||
2268 | if (n == 0) | |
2269 | return Qnil; | |
2270 | SAFE_ALLOCA (sort_data, struct charset_sort_data *, sizeof (*sort_data) * n); | |
2271 | for (tail = charsets, i = 0; CONSP (tail); tail = XCDR (tail), i++) | |
2272 | { | |
2273 | elt = XCAR (tail); | |
2274 | CHECK_CHARSET_GET_ATTR (elt, attrs); | |
2275 | sort_data[i].charset = elt; | |
2276 | sort_data[i].id = id = XINT (CHARSET_ATTR_ID (attrs)); | |
726929c4 | 2277 | if (id < min_id) |
7a84eee5 | 2278 | min_id = id; |
726929c4 | 2279 | if (id > max_id) |
7a84eee5 KH |
2280 | max_id = id; |
2281 | } | |
2282 | for (done = 0, tail = Vcharset_ordered_list, i = 0; | |
2283 | done < n && CONSP (tail); tail = XCDR (tail), i++) | |
2284 | { | |
2285 | elt = XCAR (tail); | |
2286 | id = XFASTINT (elt); | |
2287 | if (id >= min_id && id <= max_id) | |
2288 | for (j = 0; j < n; j++) | |
2289 | if (sort_data[j].id == id) | |
2290 | { | |
2291 | sort_data[j].priority = i; | |
2292 | done++; | |
2293 | } | |
2294 | } | |
2295 | qsort (sort_data, n, sizeof *sort_data, charset_compare); | |
2296 | for (i = 0, tail = charsets; CONSP (tail); tail = XCDR (tail), i++) | |
2297 | XSETCAR (tail, sort_data[i].charset); | |
2298 | SAFE_FREE (); | |
2299 | return charsets; | |
2300 | } | |
2301 | ||
4ed46869 | 2302 | \f |
3263d5a2 | 2303 | void |
971de7fb | 2304 | init_charset (void) |
4ed46869 | 2305 | { |
c8f94403 GM |
2306 | Lisp_Object tempdir; |
2307 | tempdir = Fexpand_file_name (build_string ("charsets"), Vdata_directory); | |
51b59d79 | 2308 | if (access (SSDATA (tempdir), 0) < 0) |
c8f94403 GM |
2309 | { |
2310 | dir_warning ("Error: charsets directory (%s) does not exist.\n\ | |
2311 | Emacs will not function correctly without the character map files.\n\ | |
2312 | Please check your installation!\n", | |
2313 | tempdir); | |
2314 | /* TODO should this be a fatal error? (Bug#909) */ | |
2315 | } | |
2316 | ||
2317 | Vcharset_map_path = Fcons (tempdir, Qnil); | |
4ed46869 KH |
2318 | } |
2319 | ||
4ed46869 | 2320 | |
dfcf069d | 2321 | void |
971de7fb | 2322 | init_charset_once (void) |
4ed46869 KH |
2323 | { |
2324 | int i, j, k; | |
2325 | ||
3263d5a2 KH |
2326 | for (i = 0; i < ISO_MAX_DIMENSION; i++) |
2327 | for (j = 0; j < ISO_MAX_CHARS; j++) | |
2328 | for (k = 0; k < ISO_MAX_FINAL; k++) | |
2329 | iso_charset_table[i][j][k] = -1; | |
4ed46869 | 2330 | |
60383934 | 2331 | for (i = 0; i < 256; i++) |
b84ae584 | 2332 | emacs_mule_charset[i] = -1; |
4ed46869 | 2333 | |
7c7dceee KH |
2334 | charset_jisx0201_roman = -1; |
2335 | charset_jisx0208_1978 = -1; | |
2336 | charset_jisx0208 = -1; | |
d32320c4 | 2337 | charset_ksc5601 = -1; |
4ed46869 KH |
2338 | } |
2339 | ||
2340 | #ifdef emacs | |
2341 | ||
dfcf069d | 2342 | void |
971de7fb | 2343 | syms_of_charset (void) |
4ed46869 | 2344 | { |
3263d5a2 KH |
2345 | DEFSYM (Qcharsetp, "charsetp"); |
2346 | ||
2347 | DEFSYM (Qascii, "ascii"); | |
2348 | DEFSYM (Qunicode, "unicode"); | |
6c652beb | 2349 | DEFSYM (Qemacs, "emacs"); |
2fe1edd1 | 2350 | DEFSYM (Qeight_bit, "eight-bit"); |
3263d5a2 KH |
2351 | DEFSYM (Qiso_8859_1, "iso-8859-1"); |
2352 | ||
2353 | DEFSYM (Qgl, "gl"); | |
2354 | DEFSYM (Qgr, "gr"); | |
2355 | ||
3263d5a2 KH |
2356 | staticpro (&Vcharset_ordered_list); |
2357 | Vcharset_ordered_list = Qnil; | |
2358 | ||
2359 | staticpro (&Viso_2022_charset_list); | |
2360 | Viso_2022_charset_list = Qnil; | |
2361 | ||
2362 | staticpro (&Vemacs_mule_charset_list); | |
2363 | Vemacs_mule_charset_list = Qnil; | |
2364 | ||
3943ed76 | 2365 | /* Don't staticpro them here. It's done in syms_of_fns. */ |
088dcc3e DN |
2366 | QCtest = intern_c_string (":test"); |
2367 | Qeq = intern_c_string ("eq"); | |
3943ed76 | 2368 | |
3263d5a2 | 2369 | staticpro (&Vcharset_hash_table); |
8f924df7 KH |
2370 | { |
2371 | Lisp_Object args[2]; | |
2372 | args[0] = QCtest; | |
2373 | args[1] = Qeq; | |
2374 | Vcharset_hash_table = Fmake_hash_table (2, args); | |
2375 | } | |
3263d5a2 KH |
2376 | |
2377 | charset_table_size = 128; | |
2378 | charset_table = ((struct charset *) | |
2379 | xmalloc (sizeof (struct charset) * charset_table_size)); | |
2380 | charset_table_used = 0; | |
2381 | ||
3263d5a2 KH |
2382 | defsubr (&Scharsetp); |
2383 | defsubr (&Smap_charset_chars); | |
2384 | defsubr (&Sdefine_charset_internal); | |
2385 | defsubr (&Sdefine_charset_alias); | |
3263d5a2 KH |
2386 | defsubr (&Scharset_plist); |
2387 | defsubr (&Sset_charset_plist); | |
2388 | defsubr (&Sunify_charset); | |
3fac5a51 | 2389 | defsubr (&Sget_unused_iso_final_char); |
4ed46869 KH |
2390 | defsubr (&Sdeclare_equiv_charset); |
2391 | defsubr (&Sfind_charset_region); | |
2392 | defsubr (&Sfind_charset_string); | |
3263d5a2 KH |
2393 | defsubr (&Sdecode_char); |
2394 | defsubr (&Sencode_char); | |
4ed46869 | 2395 | defsubr (&Ssplit_char); |
3263d5a2 | 2396 | defsubr (&Smake_char); |
4ed46869 | 2397 | defsubr (&Schar_charset); |
90d7b74e | 2398 | defsubr (&Scharset_after); |
4ed46869 | 2399 | defsubr (&Siso_charset); |
3263d5a2 | 2400 | defsubr (&Sclear_charset_maps); |
8ddf5e57 DL |
2401 | defsubr (&Scharset_priority_list); |
2402 | defsubr (&Sset_charset_priority); | |
d5b33309 | 2403 | defsubr (&Scharset_id_internal); |
7a84eee5 | 2404 | defsubr (&Ssort_charsets); |
3263d5a2 | 2405 | |
29208e82 | 2406 | DEFVAR_LISP ("charset-map-path", Vcharset_map_path, |
6f3122a7 | 2407 | doc: /* *List of directories to search for charset map files. */); |
4beef065 | 2408 | Vcharset_map_path = Qnil; |
4ed46869 | 2409 | |
29208e82 | 2410 | DEFVAR_BOOL ("inhibit-load-charset-map", inhibit_load_charset_map, |
ecca2aad KH |
2411 | doc: /* Inhibit loading of charset maps. Used when dumping Emacs. */); |
2412 | inhibit_load_charset_map = 0; | |
2413 | ||
29208e82 | 2414 | DEFVAR_LISP ("charset-list", Vcharset_list, |
528623a0 | 2415 | doc: /* List of all charsets ever defined. */); |
3263d5a2 KH |
2416 | Vcharset_list = Qnil; |
2417 | ||
29208e82 | 2418 | DEFVAR_LISP ("current-iso639-language", Vcurrent_iso639_language, |
6a9c90ec KH |
2419 | doc: /* ISO639 language mnemonic symbol for the current language environment. |
2420 | If the current language environment is for multiple languages (e.g. "Latin-1"), | |
2421 | the value may be a list of mnemonics. */); | |
2422 | Vcurrent_iso639_language = Qnil; | |
2423 | ||
2fe1edd1 KH |
2424 | charset_ascii |
2425 | = define_charset_internal (Qascii, 1, "\x00\x7F\x00\x00\x00\x00", | |
2426 | 0, 127, 'B', -1, 0, 1, 0, 0); | |
14e3d523 KH |
2427 | charset_iso_8859_1 |
2428 | = define_charset_internal (Qiso_8859_1, 1, "\x00\xFF\x00\x00\x00\x00", | |
2429 | 0, 255, -1, -1, -1, 1, 0, 0); | |
2fe1edd1 | 2430 | charset_unicode |
73fbf2d9 | 2431 | = define_charset_internal (Qunicode, 3, "\x00\xFF\x00\xFF\x00\x10", |
2fe1edd1 | 2432 | 0, MAX_UNICODE_CHAR, -1, 0, -1, 1, 0, 0); |
6c652beb KH |
2433 | charset_emacs |
2434 | = define_charset_internal (Qemacs, 3, "\x00\xFF\x00\xFF\x00\x3F", | |
2435 | 0, MAX_5_BYTE_CHAR, -1, 0, -1, 1, 1, 0); | |
2fe1edd1 KH |
2436 | charset_eight_bit |
2437 | = define_charset_internal (Qeight_bit, 1, "\x80\xFF\x00\x00\x00\x00", | |
880820fe | 2438 | 128, 255, -1, 0, -1, 0, 1, |
2fe1edd1 | 2439 | MAX_5_BYTE_CHAR + 1); |
6809ca75 | 2440 | charset_unibyte = charset_iso_8859_1; |
4ed46869 KH |
2441 | } |
2442 | ||
2443 | #endif /* emacs */ |