Commit | Line | Data |
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3263d5a2 KH |
1 | /* Basic character set support. |
2 | Copyright (C) 1995, 97, 98, 2000, 2001 Electrotechnical Laboratory, JAPAN. | |
75c8c592 | 3 | Licensed to the Free Software Foundation. |
12bcae05 | 4 | Copyright (C) 2001 Free Software Foundation, Inc. |
3263d5a2 KH |
5 | Copyright (C) 2001, 2002 |
6 | National Institute of Advanced Industrial Science and Technology (AIST) | |
7 | Registration Number H13PRO009 | |
4ed46869 | 8 | |
369314dc KH |
9 | This file is part of GNU Emacs. |
10 | ||
11 | GNU Emacs is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2, or (at your option) | |
14 | any later version. | |
4ed46869 | 15 | |
369314dc KH |
16 | GNU Emacs is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
4ed46869 | 20 | |
369314dc KH |
21 | You should have received a copy of the GNU General Public License |
22 | along with GNU Emacs; see the file COPYING. If not, write to | |
23 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | Boston, MA 02111-1307, USA. */ | |
4ed46869 | 25 | |
68c45bf0 | 26 | #include <config.h> |
68c45bf0 | 27 | |
4ed46869 | 28 | #include <stdio.h> |
3263d5a2 KH |
29 | #include <unistd.h> |
30 | #include <ctype.h> | |
4ed46869 | 31 | #include <sys/types.h> |
4ed46869 | 32 | #include "lisp.h" |
3263d5a2 | 33 | #include "character.h" |
4ed46869 KH |
34 | #include "charset.h" |
35 | #include "coding.h" | |
fc6b09bf | 36 | #include "disptab.h" |
3263d5a2 | 37 | #include "buffer.h" |
4ed46869 | 38 | |
04c2f2c5 | 39 | /*** GENERAL NOTES on CODED CHARACTER SETS (CHARSETS) *** |
4ed46869 | 40 | |
3263d5a2 | 41 | A coded character set ("charset" hereafter) is a meaningful |
04c2f2c5 | 42 | collection (i.e. language, culture, functionality, etc.) of |
3263d5a2 | 43 | characters. Emacs handles multiple charsets at once. In Emacs Lisp |
04c2f2c5 DL |
44 | code, a charset is represented by a symbol. In C code, a charset is |
45 | represented by its ID number or by a pointer to a struct charset. | |
4ed46869 | 46 | |
3263d5a2 KH |
47 | The actual information about each charset is stored in two places. |
48 | Lispy information is stored in the hash table Vcharset_hash_table as | |
49 | a vector (charset attributes). The other information is stored in | |
04c2f2c5 | 50 | charset_table as a struct charset. |
4ed46869 | 51 | |
3263d5a2 | 52 | */ |
4ed46869 | 53 | |
3263d5a2 KH |
54 | /* List of all charsets. This variable is used only from Emacs |
55 | Lisp. */ | |
4ed46869 KH |
56 | Lisp_Object Vcharset_list; |
57 | ||
3263d5a2 KH |
58 | /* Hash table that contains attributes of each charset. Keys are |
59 | charset symbols, and values are vectors of charset attributes. */ | |
60 | Lisp_Object Vcharset_hash_table; | |
61 | ||
62 | /* Table of struct charset. */ | |
63 | struct charset *charset_table; | |
64 | ||
65 | static int charset_table_size; | |
66 | int charset_table_used; | |
67 | ||
68 | Lisp_Object Qcharsetp; | |
69 | ||
70 | /* Special charset symbols. */ | |
71 | Lisp_Object Qascii; | |
72 | Lisp_Object Qeight_bit_control; | |
73 | Lisp_Object Qeight_bit_graphic; | |
74 | Lisp_Object Qiso_8859_1; | |
75 | Lisp_Object Qunicode; | |
b0e3cf2b | 76 | |
3263d5a2 KH |
77 | /* The corresponding charsets. */ |
78 | int charset_ascii; | |
79 | int charset_8_bit_control; | |
80 | int charset_8_bit_graphic; | |
81 | int charset_iso_8859_1; | |
82 | int charset_unicode; | |
c1a08b4c | 83 | |
7c7dceee KH |
84 | /* The other special charsets. */ |
85 | int charset_jisx0201_roman; | |
86 | int charset_jisx0208_1978; | |
87 | int charset_jisx0208; | |
88 | ||
3263d5a2 KH |
89 | /* Value of charset attribute `charset-iso-plane'. */ |
90 | Lisp_Object Qgl, Qgr; | |
c1a08b4c | 91 | |
3263d5a2 KH |
92 | /* The primary charset. It is a charset of unibyte characters. */ |
93 | int charset_primary; | |
94 | ||
95 | /* List of charsets ordered by the priority. */ | |
96 | Lisp_Object Vcharset_ordered_list; | |
97 | ||
dbbb237d | 98 | /* Incremented everytime we change Vcharset_ordered_list. This is |
64165ae2 | 99 | unsigned short so that it fits in Lisp_Int and never matches |
dbbb237d KH |
100 | -1. */ |
101 | unsigned short charset_ordered_list_tick; | |
102 | ||
3263d5a2 KH |
103 | /* List of iso-2022 charsets. */ |
104 | Lisp_Object Viso_2022_charset_list; | |
105 | ||
106 | /* List of emacs-mule charsets. */ | |
107 | Lisp_Object Vemacs_mule_charset_list; | |
108 | ||
109 | struct charset *emacs_mule_charset[256]; | |
4ed46869 KH |
110 | |
111 | /* Mapping table from ISO2022's charset (specified by DIMENSION, | |
112 | CHARS, and FINAL-CHAR) to Emacs' charset. */ | |
3263d5a2 KH |
113 | int iso_charset_table[ISO_MAX_DIMENSION][ISO_MAX_CHARS][ISO_MAX_FINAL]; |
114 | ||
115 | Lisp_Object Vcharset_map_directory; | |
116 | ||
117 | Lisp_Object Vchar_unified_charset_table; | |
118 | ||
64165ae2 DL |
119 | /* Defined in chartab.c */ |
120 | extern void | |
121 | map_char_table_for_charset P_ ((void (*c_function) (Lisp_Object, Lisp_Object), | |
122 | Lisp_Object function, Lisp_Object table, | |
123 | Lisp_Object arg, struct charset *charset, | |
124 | unsigned from, unsigned to)); | |
125 | ||
69f8de5b KH |
126 | #define CODE_POINT_TO_INDEX(charset, code) \ |
127 | ((charset)->code_linear_p \ | |
128 | ? (code) - (charset)->min_code \ | |
129 | : (((charset)->code_space_mask[(code) >> 24] & 0x8) \ | |
130 | && ((charset)->code_space_mask[((code) >> 16) & 0xFF] & 0x4) \ | |
131 | && ((charset)->code_space_mask[((code) >> 8) & 0xFF] & 0x2) \ | |
132 | && ((charset)->code_space_mask[(code) & 0xFF] & 0x1)) \ | |
133 | ? (((((code) >> 24) - (charset)->code_space[12]) \ | |
134 | * (charset)->code_space[11]) \ | |
135 | + (((((code) >> 16) & 0xFF) - (charset)->code_space[8]) \ | |
136 | * (charset)->code_space[7]) \ | |
137 | + (((((code) >> 8) & 0xFF) - (charset)->code_space[4]) \ | |
138 | * (charset)->code_space[3]) \ | |
820ee249 KH |
139 | + (((code) & 0xFF) - (charset)->code_space[0]) \ |
140 | - ((charset)->char_index_offset)) \ | |
3263d5a2 KH |
141 | : -1) |
142 | ||
143 | ||
144 | /* Convert the character index IDX to code-point CODE for CHARSET. | |
145 | It is assumed that IDX is in a valid range. */ | |
146 | ||
820ee249 KH |
147 | #define INDEX_TO_CODE_POINT(charset, idx) \ |
148 | ((charset)->code_linear_p \ | |
149 | ? (idx) + (charset)->min_code \ | |
150 | : (idx += (charset)->char_index_offset, \ | |
151 | (((charset)->code_space[0] + (idx) % (charset)->code_space[2]) \ | |
152 | | (((charset)->code_space[4] \ | |
153 | + ((idx) / (charset)->code_space[3] % (charset)->code_space[6])) \ | |
154 | << 8) \ | |
155 | | (((charset)->code_space[8] \ | |
156 | + ((idx) / (charset)->code_space[7] % (charset)->code_space[10])) \ | |
157 | << 16) \ | |
158 | | (((charset)->code_space[12] + ((idx) / (charset)->code_space[11])) \ | |
159 | << 24)))) | |
160 | ||
4ed46869 | 161 | |
3263d5a2 | 162 | \f |
4ed46869 | 163 | |
e9ce014c KH |
164 | /* Set to 1 to warn that a charset map is loaded and thus a buffer |
165 | text and a string data may be relocated. */ | |
3263d5a2 | 166 | int charset_map_loaded; |
35e623fb | 167 | |
e9ce014c KH |
168 | struct charset_map_entries |
169 | { | |
170 | struct { | |
171 | unsigned from, to; | |
172 | int c; | |
173 | } entry[0x10000]; | |
174 | struct charset_map_entries *next; | |
175 | }; | |
176 | ||
177 | /* Load the mapping information for CHARSET from ENTRIES. | |
4cf9710d | 178 | |
3263d5a2 | 179 | If CONTROL_FLAG is 0, setup CHARSET->min_char and CHARSET->max_char. |
8a73a704 | 180 | |
3263d5a2 KH |
181 | If CONTROL_FLAG is 1, setup CHARSET->min_char, CHARSET->max_char, |
182 | CHARSET->decoder, and CHARSET->encoder. | |
93bcb785 | 183 | |
3263d5a2 KH |
184 | If CONTROL_FLAG is 2, setup CHARSET->deunifier and |
185 | Vchar_unify_table. If Vchar_unified_charset_table is non-nil, | |
186 | setup it too. */ | |
4ed46869 | 187 | |
3263d5a2 | 188 | static void |
e9ce014c | 189 | load_charset_map (charset, entries, n_entries, control_flag) |
3263d5a2 | 190 | struct charset *charset; |
e9ce014c KH |
191 | struct charset_map_entries *entries; |
192 | int n_entries; | |
3263d5a2 | 193 | int control_flag; |
4ed46869 | 194 | { |
3263d5a2 | 195 | Lisp_Object vec, table; |
3263d5a2 KH |
196 | unsigned max_code = CHARSET_MAX_CODE (charset); |
197 | int ascii_compatible_p = charset->ascii_compatible_p; | |
198 | int min_char, max_char, nonascii_min_char; | |
3263d5a2 | 199 | int i; |
3263d5a2 | 200 | unsigned char *fast_map = charset->fast_map; |
99529c2c | 201 | |
e9ce014c KH |
202 | if (n_entries <= 0) |
203 | return; | |
204 | ||
205 | if (control_flag > 0) | |
8ac5a9cc | 206 | { |
3263d5a2 | 207 | int n = CODE_POINT_TO_INDEX (charset, max_code) + 1; |
6662e69b | 208 | |
374c5cfd | 209 | table = Fmake_char_table (Qnil, Qnil); |
3263d5a2 KH |
210 | if (control_flag == 1) |
211 | vec = Fmake_vector (make_number (n), make_number (-1)); | |
212 | else if (! CHAR_TABLE_P (Vchar_unify_table)) | |
374c5cfd | 213 | Vchar_unify_table = Fmake_char_table (Qnil, Qnil); |
6662e69b | 214 | |
3263d5a2 | 215 | charset_map_loaded = 1; |
2e344af3 | 216 | } |
3263d5a2 | 217 | |
e9ce014c | 218 | min_char = max_char = entries->entry[0].c; |
3263d5a2 | 219 | nonascii_min_char = MAX_CHAR; |
e9ce014c | 220 | for (i = 0; i < n_entries; i++) |
2e344af3 | 221 | { |
e9ce014c | 222 | unsigned from, to; |
3b4f4446 KH |
223 | int from_index, to_index; |
224 | int from_c, to_c; | |
e9ce014c | 225 | int idx = i % 0x10000; |
3263d5a2 | 226 | |
e9ce014c KH |
227 | if (i > 0 && idx == 0) |
228 | entries = entries->next; | |
229 | from = entries->entry[idx].from; | |
230 | to = entries->entry[idx].to; | |
3b4f4446 KH |
231 | from_c = entries->entry[idx].c; |
232 | from_index = CODE_POINT_TO_INDEX (charset, from); | |
233 | if (from == to) | |
234 | { | |
235 | to_index = from_index; | |
236 | to_c = from_c; | |
237 | } | |
238 | else | |
239 | { | |
240 | to_index = CODE_POINT_TO_INDEX (charset, to); | |
241 | to_c = from_c + (to_index - from_index); | |
242 | } | |
243 | if (from_index < 0 || to_index < 0) | |
244 | continue; | |
3263d5a2 | 245 | |
3263d5a2 KH |
246 | if (control_flag < 2) |
247 | { | |
3b4f4446 KH |
248 | int c; |
249 | ||
250 | if (to_c > max_char) | |
251 | max_char = to_c; | |
252 | else if (from_c < min_char) | |
253 | min_char = from_c; | |
254 | if (ascii_compatible_p) | |
255 | { | |
256 | if (! ASCII_BYTE_P (from_c)) | |
257 | { | |
258 | if (from_c < nonascii_min_char) | |
259 | nonascii_min_char = from_c; | |
260 | } | |
261 | else if (! ASCII_BYTE_P (to_c)) | |
262 | { | |
263 | nonascii_min_char = 0x80; | |
264 | } | |
265 | } | |
266 | ||
267 | for (c = from_c; c <= to_c; c++) | |
268 | CHARSET_FAST_MAP_SET (c, fast_map); | |
269 | ||
e9ce014c | 270 | if (control_flag == 1) |
3263d5a2 | 271 | { |
e9ce014c | 272 | unsigned code = from; |
e9ce014c | 273 | |
e9ce014c KH |
274 | if (CHARSET_COMPACT_CODES_P (charset)) |
275 | while (1) | |
276 | { | |
3b4f4446 KH |
277 | ASET (vec, from_index, make_number (from_c)); |
278 | CHAR_TABLE_SET (table, from_c, make_number (code)); | |
e9ce014c KH |
279 | if (from_index == to_index) |
280 | break; | |
3b4f4446 | 281 | from_index++, from_c++; |
e9ce014c KH |
282 | code = INDEX_TO_CODE_POINT (charset, from_index); |
283 | } | |
284 | else | |
3b4f4446 | 285 | for (; from_index <= to_index; from_index++, from_c++) |
e9ce014c | 286 | { |
3b4f4446 KH |
287 | ASET (vec, from_index, make_number (from_c)); |
288 | CHAR_TABLE_SET (table, from_c, make_number (from_index)); | |
e9ce014c | 289 | } |
3263d5a2 | 290 | } |
3263d5a2 | 291 | } |
e9ce014c | 292 | else |
2e344af3 | 293 | { |
69f8de5b | 294 | unsigned code = from; |
3b4f4446 | 295 | |
69f8de5b KH |
296 | while (1) |
297 | { | |
298 | int c1 = DECODE_CHAR (charset, code); | |
299 | ||
3263d5a2 KH |
300 | if (c1 >= 0) |
301 | { | |
3b4f4446 | 302 | CHAR_TABLE_SET (table, from_c, make_number (c1)); |
16fed1fc | 303 | CHAR_TABLE_SET (Vchar_unify_table, c1, make_number (from_c)); |
3263d5a2 KH |
304 | if (CHAR_TABLE_P (Vchar_unified_charset_table)) |
305 | CHAR_TABLE_SET (Vchar_unified_charset_table, c1, | |
306 | CHARSET_NAME (charset)); | |
307 | } | |
69f8de5b KH |
308 | if (from_index == to_index) |
309 | break; | |
3b4f4446 | 310 | from_index++, from_c++; |
69f8de5b | 311 | code = INDEX_TO_CODE_POINT (charset, from_index); |
3263d5a2 | 312 | } |
2e344af3 | 313 | } |
8ac5a9cc | 314 | } |
3263d5a2 KH |
315 | |
316 | if (control_flag < 2) | |
4ed46869 | 317 | { |
3263d5a2 KH |
318 | CHARSET_MIN_CHAR (charset) = (ascii_compatible_p |
319 | ? nonascii_min_char : min_char); | |
320 | CHARSET_MAX_CHAR (charset) = max_char; | |
e9ce014c | 321 | if (control_flag == 1) |
4ed46869 | 322 | { |
3263d5a2 KH |
323 | CHARSET_DECODER (charset) = vec; |
324 | CHARSET_ENCODER (charset) = table; | |
4ed46869 KH |
325 | } |
326 | } | |
2e344af3 | 327 | else |
3263d5a2 | 328 | CHARSET_DEUNIFIER (charset) = table; |
4ed46869 KH |
329 | } |
330 | ||
12bcae05 | 331 | |
3263d5a2 KH |
332 | /* Read a hexadecimal number (preceded by "0x") from the file FP while |
333 | paying attention to comment charcter '#'. */ | |
12bcae05 | 334 | |
3263d5a2 KH |
335 | static INLINE unsigned |
336 | read_hex (fp, eof) | |
337 | FILE *fp; | |
338 | int *eof; | |
12bcae05 | 339 | { |
3263d5a2 KH |
340 | int c; |
341 | unsigned n; | |
12bcae05 | 342 | |
3263d5a2 KH |
343 | while ((c = getc (fp)) != EOF) |
344 | { | |
69f8de5b | 345 | if (c == '#') |
3263d5a2 KH |
346 | { |
347 | while ((c = getc (fp)) != EOF && c != '\n'); | |
348 | } | |
349 | else if (c == '0') | |
350 | { | |
351 | if ((c = getc (fp)) == EOF || c == 'x') | |
352 | break; | |
353 | } | |
354 | } | |
355 | if (c == EOF) | |
356 | { | |
357 | *eof = 1; | |
358 | return 0; | |
359 | } | |
360 | *eof = 0; | |
361 | n = 0; | |
362 | if (c == 'x') | |
363 | while ((c = getc (fp)) != EOF && isxdigit (c)) | |
364 | n = ((n << 4) | |
365 | | (c <= '9' ? c - '0' : c <= 'F' ? c - 'A' + 10 : c - 'a' + 10)); | |
366 | else | |
367 | while ((c = getc (fp)) != EOF && isdigit (c)) | |
368 | n = (n * 10) + c - '0'; | |
e9ce014c KH |
369 | if (c != EOF) |
370 | ungetc (c, fp); | |
3263d5a2 KH |
371 | return n; |
372 | } | |
12bcae05 | 373 | |
537efd8d | 374 | |
3263d5a2 | 375 | /* Return a mapping vector for CHARSET loaded from MAPFILE. |
e9ce014c KH |
376 | Each line of MAPFILE has this form |
377 | 0xAAAA 0xCCCC | |
378 | where 0xAAAA is a code-point and 0xCCCC is the corresponding | |
379 | character code, or this form | |
380 | 0xAAAA-0xBBBB 0xCCCC | |
381 | where 0xAAAA and 0xBBBB are code-points specifying a range, and | |
382 | 0xCCCC is the first character code of the range. | |
383 | ||
3263d5a2 KH |
384 | The returned vector has this form: |
385 | [ CODE1 CHAR1 CODE2 CHAR2 .... ] | |
e9ce014c KH |
386 | where CODE1 is a code-point or a cons of code-points specifying a |
387 | range. */ | |
4ed46869 | 388 | |
c449997d KH |
389 | extern void add_to_log P_ ((char *, Lisp_Object, Lisp_Object)); |
390 | ||
e9ce014c KH |
391 | static void |
392 | load_charset_map_from_file (charset, mapfile, control_flag) | |
3263d5a2 KH |
393 | struct charset *charset; |
394 | Lisp_Object mapfile; | |
e9ce014c | 395 | int control_flag; |
4ed46869 | 396 | { |
e9ce014c KH |
397 | unsigned min_code = CHARSET_MIN_CODE (charset); |
398 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
3263d5a2 KH |
399 | int fd; |
400 | FILE *fp; | |
3263d5a2 KH |
401 | int eof; |
402 | Lisp_Object suffixes; | |
e9ce014c KH |
403 | struct charset_map_entries *head, *entries; |
404 | int n_entries; | |
4ed46869 | 405 | |
3263d5a2 KH |
406 | suffixes = Fcons (build_string (".map"), |
407 | Fcons (build_string (".TXT"), Qnil)); | |
4ed46869 | 408 | |
3263d5a2 KH |
409 | fd = openp (Fcons (Vcharset_map_directory, Qnil), mapfile, suffixes, |
410 | NULL, 0); | |
411 | if (fd < 0 | |
412 | || ! (fp = fdopen (fd, "r"))) | |
413 | { | |
414 | add_to_log ("Failure in loading charset map: %S", mapfile, Qnil); | |
e9ce014c | 415 | return; |
3263d5a2 | 416 | } |
4ed46869 | 417 | |
e9ce014c KH |
418 | head = entries = ((struct charset_map_entries *) |
419 | alloca (sizeof (struct charset_map_entries))); | |
420 | n_entries = 0; | |
3263d5a2 KH |
421 | eof = 0; |
422 | while (1) | |
423 | { | |
e9ce014c KH |
424 | unsigned from, to; |
425 | int c; | |
426 | int idx; | |
4ed46869 | 427 | |
e9ce014c | 428 | from = read_hex (fp, &eof); |
3263d5a2 KH |
429 | if (eof) |
430 | break; | |
e9ce014c KH |
431 | if (getc (fp) == '-') |
432 | to = read_hex (fp, &eof); | |
433 | else | |
434 | to = from; | |
435 | c = (int) read_hex (fp, &eof); | |
436 | ||
437 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) | |
438 | continue; | |
439 | ||
440 | if (n_entries > 0 && (n_entries % 0x10000) == 0) | |
3263d5a2 | 441 | { |
e9ce014c KH |
442 | entries->next = ((struct charset_map_entries *) |
443 | alloca (sizeof (struct charset_map_entries))); | |
444 | entries = entries->next; | |
3263d5a2 | 445 | } |
e9ce014c KH |
446 | idx = n_entries % 0x10000; |
447 | entries->entry[idx].from = from; | |
448 | entries->entry[idx].to = to; | |
449 | entries->entry[idx].c = c; | |
450 | n_entries++; | |
3263d5a2 KH |
451 | } |
452 | fclose (fp); | |
453 | close (fd); | |
4ed46869 | 454 | |
e9ce014c KH |
455 | load_charset_map (charset, head, n_entries, control_flag); |
456 | } | |
457 | ||
458 | static void | |
459 | load_charset_map_from_vector (charset, vec, control_flag) | |
460 | struct charset *charset; | |
461 | Lisp_Object vec; | |
462 | int control_flag; | |
463 | { | |
464 | unsigned min_code = CHARSET_MIN_CODE (charset); | |
465 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
466 | struct charset_map_entries *head, *entries; | |
467 | int n_entries; | |
468 | int len = ASIZE (vec); | |
469 | int i; | |
470 | ||
471 | if (len % 2 == 1) | |
3263d5a2 | 472 | { |
e9ce014c KH |
473 | add_to_log ("Failure in loading charset map: %V", vec, Qnil); |
474 | return; | |
3263d5a2 | 475 | } |
4ed46869 | 476 | |
e9ce014c KH |
477 | head = entries = ((struct charset_map_entries *) |
478 | alloca (sizeof (struct charset_map_entries))); | |
479 | n_entries = 0; | |
480 | for (i = 0; i < len; i += 2) | |
481 | { | |
482 | Lisp_Object val, val2; | |
483 | unsigned from, to; | |
484 | int c; | |
485 | int idx; | |
3263d5a2 | 486 | |
e9ce014c KH |
487 | val = AREF (vec, i); |
488 | if (CONSP (val)) | |
489 | { | |
490 | val2 = XCDR (val); | |
491 | val = XCAR (val); | |
492 | CHECK_NATNUM (val); | |
493 | CHECK_NATNUM (val2); | |
494 | from = XFASTINT (val); | |
495 | to = XFASTINT (val2); | |
496 | } | |
497 | else | |
498 | { | |
499 | CHECK_NATNUM (val); | |
500 | from = to = XFASTINT (val); | |
501 | } | |
502 | val = AREF (vec, i + 1); | |
503 | CHECK_NATNUM (val); | |
504 | c = XFASTINT (val); | |
505 | ||
506 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) | |
507 | continue; | |
508 | ||
509 | if ((n_entries % 0x10000) == 0) | |
510 | { | |
511 | entries->next = ((struct charset_map_entries *) | |
512 | alloca (sizeof (struct charset_map_entries))); | |
513 | entries = entries->next; | |
514 | } | |
515 | idx = n_entries % 0x10000; | |
516 | entries->entry[idx].from = from; | |
517 | entries->entry[idx].to = to; | |
518 | entries->entry[idx].c = c; | |
519 | n_entries++; | |
520 | } | |
521 | ||
522 | load_charset_map (charset, head, n_entries, control_flag); | |
ac4137cc KH |
523 | } |
524 | ||
3263d5a2 KH |
525 | static void |
526 | load_charset (charset) | |
527 | struct charset *charset; | |
ac4137cc | 528 | { |
3263d5a2 KH |
529 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP_DEFERRED) |
530 | { | |
531 | Lisp_Object map; | |
ac4137cc | 532 | |
3263d5a2 KH |
533 | map = CHARSET_MAP (charset); |
534 | if (STRINGP (map)) | |
e9ce014c KH |
535 | load_charset_map_from_file (charset, map, 1); |
536 | else | |
537 | load_charset_map_from_vector (charset, map, 1); | |
3263d5a2 KH |
538 | CHARSET_METHOD (charset) = CHARSET_METHOD_MAP; |
539 | } | |
4ed46869 KH |
540 | } |
541 | ||
3263d5a2 KH |
542 | |
543 | DEFUN ("charsetp", Fcharsetp, Scharsetp, 1, 1, 0, | |
544 | doc: /* Return non-nil if and only if OBJECT is a charset.*/) | |
545 | (object) | |
546 | Lisp_Object object; | |
23d2a7f1 | 547 | { |
3263d5a2 | 548 | return (CHARSETP (object) ? Qt : Qnil); |
23d2a7f1 KH |
549 | } |
550 | ||
35e623fb | 551 | |
3263d5a2 | 552 | void |
374c5cfd KH |
553 | map_charset_chars (c_function, function, arg, |
554 | charset, from, to) | |
555 | void (*c_function) P_ ((Lisp_Object, Lisp_Object)); | |
556 | Lisp_Object function, arg; | |
557 | struct charset *charset; | |
558 | unsigned from, to; | |
559 | ||
35e623fb | 560 | { |
3263d5a2 | 561 | Lisp_Object range; |
374c5cfd | 562 | int partial; |
3263d5a2 KH |
563 | |
564 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP_DEFERRED) | |
565 | load_charset (charset); | |
566 | ||
374c5cfd KH |
567 | partial = (from > CHARSET_MIN_CODE (charset) |
568 | || to < CHARSET_MAX_CODE (charset)); | |
569 | ||
570 | if (CHARSET_UNIFIED_P (charset) | |
571 | && CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
572 | { | |
573 | map_char_table_for_charset (c_function, function, | |
574 | CHARSET_DEUNIFIER (charset), arg, | |
575 | partial ? charset : NULL, from, to); | |
576 | } | |
577 | ||
3263d5a2 KH |
578 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_OFFSET) |
579 | { | |
374c5cfd KH |
580 | int from_idx = CODE_POINT_TO_INDEX (charset, from); |
581 | int to_idx = CODE_POINT_TO_INDEX (charset, to); | |
582 | int from_c = from_idx + CHARSET_CODE_OFFSET (charset); | |
583 | int to_c = to_idx + CHARSET_CODE_OFFSET (charset); | |
584 | ||
585 | range = Fcons (make_number (from_c), make_number (to_c)); | |
3263d5a2 | 586 | if (NILP (function)) |
374c5cfd | 587 | (*c_function) (range, arg); |
3263d5a2 KH |
588 | else |
589 | call2 (function, range, arg); | |
590 | } | |
591 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) | |
592 | { | |
593 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
594 | return; | |
374c5cfd | 595 | if (CHARSET_ASCII_COMPATIBLE_P (charset) && from <= 127) |
bbf12bb3 | 596 | { |
374c5cfd KH |
597 | range = Fcons (make_number (from), make_number (to)); |
598 | if (to >= 128) | |
599 | XSETCAR (range, make_number (127)); | |
600 | ||
3263d5a2 | 601 | if (NILP (function)) |
374c5cfd | 602 | (*c_function) (range, arg); |
3263d5a2 KH |
603 | else |
604 | call2 (function, range, arg); | |
bbf12bb3 | 605 | } |
374c5cfd KH |
606 | map_char_table_for_charset (c_function, function, |
607 | CHARSET_ENCODER (charset), arg, | |
608 | partial ? charset : NULL, from, to); | |
3263d5a2 | 609 | } |
374c5cfd | 610 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_SUBSET) |
3263d5a2 | 611 | { |
374c5cfd KH |
612 | Lisp_Object subset_info; |
613 | int offset; | |
614 | ||
615 | subset_info = CHARSET_SUBSET (charset); | |
616 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
617 | offset = XINT (AREF (subset_info, 3)); | |
618 | from -= offset; | |
619 | if (from < XFASTINT (AREF (subset_info, 1))) | |
620 | from = XFASTINT (AREF (subset_info, 1)); | |
621 | to -= offset; | |
622 | if (to > XFASTINT (AREF (subset_info, 2))) | |
623 | to = XFASTINT (AREF (subset_info, 2)); | |
624 | map_charset_chars (c_function, function, arg, charset, from, to); | |
625 | } | |
626 | else /* i.e. CHARSET_METHOD_SUPERSET */ | |
627 | { | |
628 | Lisp_Object parents; | |
3263d5a2 | 629 | |
374c5cfd KH |
630 | for (parents = CHARSET_SUPERSET (charset); CONSP (parents); |
631 | parents = XCDR (parents)) | |
bbf12bb3 | 632 | { |
374c5cfd KH |
633 | int offset; |
634 | unsigned this_from, this_to; | |
635 | ||
636 | charset = CHARSET_FROM_ID (XFASTINT (XCAR (XCAR (parents)))); | |
637 | offset = XINT (XCDR (XCAR (parents))); | |
638 | this_from = from - offset; | |
639 | this_to = to - offset; | |
640 | if (this_from < CHARSET_MIN_CODE (charset)) | |
641 | this_from = CHARSET_MIN_CODE (charset); | |
642 | if (this_to > CHARSET_MAX_CODE (charset)) | |
643 | this_to = CHARSET_MAX_CODE (charset); | |
644 | map_charset_chars (c_function, function, arg, charset, from, to); | |
bbf12bb3 | 645 | } |
35e623fb | 646 | } |
3263d5a2 KH |
647 | } |
648 | ||
374c5cfd KH |
649 | |
650 | DEFUN ("map-charset-chars", Fmap_charset_chars, Smap_charset_chars, 2, 5, 0, | |
04c2f2c5 | 651 | doc: /* Call FUNCTION for all characters in CHARSET. |
374c5cfd | 652 | FUNCTION is called with an argument RANGE and the optional 3rd |
3263d5a2 | 653 | argument ARG. |
6abd9323 | 654 | |
374c5cfd KH |
655 | RANGE is a cons (FROM . TO), where FROM and TO indicate a range of |
656 | characters contained in CHARSET. | |
657 | ||
658 | The optional 4th and 5th arguments FROM-CODE and TO-CODE specify the | |
659 | range of code points of targer characters. */) | |
660 | (function, charset, arg, from_code, to_code) | |
661 | Lisp_Object function, charset, arg, from_code, to_code; | |
3263d5a2 | 662 | { |
374c5cfd | 663 | struct charset *cs; |
16fed1fc | 664 | unsigned from, to; |
374c5cfd KH |
665 | |
666 | CHECK_CHARSET_GET_CHARSET (charset, cs); | |
667 | if (NILP (from_code)) | |
16fed1fc | 668 | from = CHARSET_MIN_CODE (cs); |
970b7474 KH |
669 | else |
670 | { | |
671 | CHECK_NATNUM (from_code); | |
672 | from = XINT (from_code); | |
673 | if (from < CHARSET_MIN_CODE (cs)) | |
674 | from = CHARSET_MIN_CODE (cs); | |
675 | } | |
374c5cfd | 676 | if (NILP (to_code)) |
970b7474 KH |
677 | to = CHARSET_MAX_CODE (cs); |
678 | else | |
679 | { | |
680 | CHECK_NATNUM (to_code); | |
681 | to = XINT (to_code); | |
682 | if (to > CHARSET_MAX_CODE (cs)) | |
683 | to = CHARSET_MAX_CODE (cs); | |
684 | } | |
16fed1fc | 685 | map_charset_chars (NULL, function, arg, cs, from, to); |
3263d5a2 | 686 | return Qnil; |
35e623fb | 687 | } |
76d7b829 KH |
688 | |
689 | ||
3263d5a2 KH |
690 | /* Define a charset according to the arguments. The Nth argument is |
691 | the Nth attribute of the charset (the last attribute `charset-id' | |
692 | is not included). See the docstring of `define-charset' for the | |
693 | detail. */ | |
76d7b829 | 694 | |
3263d5a2 KH |
695 | DEFUN ("define-charset-internal", Fdefine_charset_internal, |
696 | Sdefine_charset_internal, charset_arg_max, MANY, 0, | |
04c2f2c5 DL |
697 | doc: /* For internal use only. |
698 | usage: (define-charset-internal ...) */) | |
3263d5a2 KH |
699 | (nargs, args) |
700 | int nargs; | |
701 | Lisp_Object *args; | |
76d7b829 | 702 | { |
3263d5a2 KH |
703 | /* Charset attr vector. */ |
704 | Lisp_Object attrs; | |
705 | Lisp_Object val; | |
706 | unsigned hash_code; | |
707 | struct Lisp_Hash_Table *hash_table = XHASH_TABLE (Vcharset_hash_table); | |
69f8de5b | 708 | int i, j; |
3263d5a2 KH |
709 | struct charset charset; |
710 | int id; | |
711 | int dimension; | |
712 | int new_definition_p; | |
713 | int nchars; | |
714 | ||
715 | if (nargs != charset_arg_max) | |
716 | return Fsignal (Qwrong_number_of_arguments, | |
717 | Fcons (intern ("define-charset-internal"), | |
718 | make_number (nargs))); | |
719 | ||
720 | attrs = Fmake_vector (make_number (charset_attr_max), Qnil); | |
721 | ||
722 | CHECK_SYMBOL (args[charset_arg_name]); | |
723 | ASET (attrs, charset_name, args[charset_arg_name]); | |
724 | ||
725 | val = args[charset_arg_code_space]; | |
726 | for (i = 0, dimension = 0, nchars = 1; i < 4; i++) | |
76d7b829 | 727 | { |
3263d5a2 KH |
728 | int min_byte, max_byte; |
729 | ||
730 | min_byte = XINT (Faref (val, make_number (i * 2))); | |
731 | max_byte = XINT (Faref (val, make_number (i * 2 + 1))); | |
732 | if (min_byte < 0 || min_byte > max_byte || max_byte >= 256) | |
733 | error ("Invalid :code-space value"); | |
734 | charset.code_space[i * 4] = min_byte; | |
735 | charset.code_space[i * 4 + 1] = max_byte; | |
736 | charset.code_space[i * 4 + 2] = max_byte - min_byte + 1; | |
737 | nchars *= charset.code_space[i * 4 + 2]; | |
738 | charset.code_space[i * 4 + 3] = nchars; | |
739 | if (max_byte > 0) | |
740 | dimension = i + 1; | |
741 | } | |
76d7b829 | 742 | |
3263d5a2 KH |
743 | val = args[charset_arg_dimension]; |
744 | if (NILP (val)) | |
745 | charset.dimension = dimension; | |
746 | else | |
747 | { | |
748 | CHECK_NATNUM (val); | |
749 | charset.dimension = XINT (val); | |
750 | if (charset.dimension < 1 || charset.dimension > 4) | |
751 | args_out_of_range_3 (val, make_number (1), make_number (4)); | |
752 | } | |
753 | ||
754 | charset.code_linear_p | |
755 | = (charset.dimension == 1 | |
756 | || (charset.code_space[2] == 256 | |
757 | && (charset.dimension == 2 | |
758 | || (charset.code_space[6] == 256 | |
759 | && (charset.dimension == 3 | |
760 | || charset.code_space[10] == 256))))); | |
761 | ||
69f8de5b KH |
762 | if (! charset.code_linear_p) |
763 | { | |
764 | charset.code_space_mask = (unsigned char *) xmalloc (256); | |
33df3183 | 765 | bzero (charset.code_space_mask, 256); |
69f8de5b KH |
766 | for (i = 0; i < 4; i++) |
767 | for (j = charset.code_space[i * 4]; j <= charset.code_space[i * 4 + 1]; | |
768 | j++) | |
769 | charset.code_space_mask[j] |= (1 << i); | |
770 | } | |
771 | ||
3263d5a2 KH |
772 | charset.iso_chars_96 = charset.code_space[2] == 96; |
773 | ||
774 | charset.min_code = (charset.code_space[0] | |
775 | | (charset.code_space[4] << 8) | |
776 | | (charset.code_space[8] << 16) | |
777 | | (charset.code_space[12] << 24)); | |
778 | charset.max_code = (charset.code_space[1] | |
779 | | (charset.code_space[5] << 8) | |
780 | | (charset.code_space[9] << 16) | |
781 | | (charset.code_space[13] << 24)); | |
820ee249 KH |
782 | charset.char_index_offset = 0; |
783 | ||
784 | val = args[charset_arg_min_code]; | |
785 | if (! NILP (val)) | |
786 | { | |
787 | unsigned code; | |
788 | ||
789 | if (INTEGERP (val)) | |
790 | code = XINT (val); | |
791 | else | |
792 | { | |
793 | CHECK_CONS (val); | |
794 | CHECK_NUMBER (XCAR (val)); | |
795 | CHECK_NUMBER (XCDR (val)); | |
796 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); | |
797 | } | |
798 | if (code < charset.min_code | |
799 | || code > charset.max_code) | |
800 | args_out_of_range_3 (make_number (charset.min_code), | |
801 | make_number (charset.max_code), val); | |
802 | charset.char_index_offset = CODE_POINT_TO_INDEX (&charset, code); | |
803 | charset.min_code = code; | |
804 | } | |
805 | ||
806 | val = args[charset_arg_max_code]; | |
807 | if (! NILP (val)) | |
808 | { | |
809 | unsigned code; | |
810 | ||
811 | if (INTEGERP (val)) | |
812 | code = XINT (val); | |
813 | else | |
814 | { | |
815 | CHECK_CONS (val); | |
816 | CHECK_NUMBER (XCAR (val)); | |
817 | CHECK_NUMBER (XCDR (val)); | |
818 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); | |
819 | } | |
820 | if (code < charset.min_code | |
821 | || code > charset.max_code) | |
822 | args_out_of_range_3 (make_number (charset.min_code), | |
823 | make_number (charset.max_code), val); | |
824 | charset.max_code = code; | |
825 | } | |
3263d5a2 | 826 | |
e9ce014c KH |
827 | charset.compact_codes_p = charset.max_code < 0x1000000; |
828 | ||
3263d5a2 KH |
829 | val = args[charset_arg_invalid_code]; |
830 | if (NILP (val)) | |
831 | { | |
832 | if (charset.min_code > 0) | |
833 | charset.invalid_code = 0; | |
bbf12bb3 KH |
834 | else |
835 | { | |
3263d5a2 KH |
836 | XSETINT (val, charset.max_code + 1); |
837 | if (XINT (val) == charset.max_code + 1) | |
838 | charset.invalid_code = charset.max_code + 1; | |
839 | else | |
840 | error ("Attribute :invalid-code must be specified"); | |
76d7b829 | 841 | } |
76d7b829 | 842 | } |
3263d5a2 KH |
843 | else |
844 | { | |
845 | CHECK_NATNUM (val); | |
846 | charset.invalid_code = XFASTINT (val); | |
847 | } | |
76d7b829 | 848 | |
3263d5a2 KH |
849 | val = args[charset_arg_iso_final]; |
850 | if (NILP (val)) | |
851 | charset.iso_final = -1; | |
852 | else | |
853 | { | |
854 | CHECK_NUMBER (val); | |
855 | if (XINT (val) < '0' || XINT (val) > 127) | |
856 | error ("Invalid iso-final-char: %d", XINT (val)); | |
857 | charset.iso_final = XINT (val); | |
858 | } | |
859 | ||
860 | val = args[charset_arg_iso_revision]; | |
861 | if (NILP (val)) | |
862 | charset.iso_revision = -1; | |
863 | else | |
4ed46869 | 864 | { |
3263d5a2 KH |
865 | CHECK_NUMBER (val); |
866 | if (XINT (val) > 63) | |
867 | args_out_of_range (make_number (63), val); | |
868 | charset.iso_revision = XINT (val); | |
4ed46869 | 869 | } |
3263d5a2 KH |
870 | |
871 | val = args[charset_arg_emacs_mule_id]; | |
872 | if (NILP (val)) | |
873 | charset.emacs_mule_id = -1; | |
4ed46869 KH |
874 | else |
875 | { | |
3263d5a2 KH |
876 | CHECK_NATNUM (val); |
877 | if ((XINT (val) > 0 && XINT (val) <= 128) || XINT (val) >= 256) | |
878 | error ("Invalid emacs-mule-id: %d", XINT (val)); | |
879 | charset.emacs_mule_id = XINT (val); | |
c83ef371 | 880 | } |
6ef23ebb | 881 | |
3263d5a2 | 882 | charset.ascii_compatible_p = ! NILP (args[charset_arg_ascii_compatible_p]); |
4ed46869 | 883 | |
3263d5a2 KH |
884 | charset.supplementary_p = ! NILP (args[charset_arg_supplementary_p]); |
885 | ||
886 | charset.unified_p = 0; | |
887 | ||
888 | bzero (charset.fast_map, sizeof (charset.fast_map)); | |
889 | ||
890 | if (! NILP (args[charset_arg_code_offset])) | |
891 | { | |
892 | val = args[charset_arg_code_offset]; | |
893 | CHECK_NUMBER (val); | |
894 | ||
895 | charset.method = CHARSET_METHOD_OFFSET; | |
896 | charset.code_offset = XINT (val); | |
897 | ||
898 | i = CODE_POINT_TO_INDEX (&charset, charset.min_code); | |
899 | charset.min_char = i + charset.code_offset; | |
900 | i = CODE_POINT_TO_INDEX (&charset, charset.max_code); | |
901 | charset.max_char = i + charset.code_offset; | |
902 | if (charset.max_char > MAX_CHAR) | |
903 | error ("Unsupported max char: %d", charset.max_char); | |
904 | ||
905 | for (i = charset.min_char; i < 0x10000 && i <= charset.max_char; | |
906 | i += 128) | |
907 | CHARSET_FAST_MAP_SET (i, charset.fast_map); | |
908 | for (; i <= charset.max_char; i += 0x1000) | |
909 | CHARSET_FAST_MAP_SET (i, charset.fast_map); | |
910 | } | |
911 | else if (! NILP (args[charset_arg_map])) | |
912 | { | |
913 | val = args[charset_arg_map]; | |
914 | ASET (attrs, charset_map, val); | |
915 | if (STRINGP (val)) | |
e9ce014c KH |
916 | load_charset_map_from_file (&charset, val, 0); |
917 | else | |
918 | load_charset_map_from_vector (&charset, val, 0); | |
3263d5a2 KH |
919 | charset.method = CHARSET_METHOD_MAP_DEFERRED; |
920 | } | |
374c5cfd | 921 | else if (! NILP (args[charset_arg_subset])) |
3263d5a2 | 922 | { |
374c5cfd KH |
923 | Lisp_Object parent; |
924 | Lisp_Object parent_min_code, parent_max_code, parent_code_offset; | |
925 | struct charset *parent_charset; | |
926 | ||
927 | val = args[charset_arg_subset]; | |
928 | parent = Fcar (val); | |
929 | CHECK_CHARSET_GET_CHARSET (parent, parent_charset); | |
930 | parent_min_code = Fnth (make_number (1), val); | |
931 | CHECK_NATNUM (parent_min_code); | |
932 | parent_max_code = Fnth (make_number (2), val); | |
933 | CHECK_NATNUM (parent_max_code); | |
934 | parent_code_offset = Fnth (make_number (3), val); | |
935 | CHECK_NUMBER (parent_code_offset); | |
936 | val = Fmake_vector (make_number (4), Qnil); | |
937 | ASET (val, 0, make_number (parent_charset->id)); | |
938 | ASET (val, 1, parent_min_code); | |
939 | ASET (val, 2, parent_max_code); | |
940 | ASET (val, 3, parent_code_offset); | |
941 | ASET (attrs, charset_subset, val); | |
942 | ||
943 | charset.method = CHARSET_METHOD_SUBSET; | |
944 | /* Here, we just copy the parent's fast_map. It's not accurate, | |
945 | but at least it works for quickly detecting which character | |
946 | DOESN'T belong to this charset. */ | |
947 | for (i = 0; i < 190; i++) | |
948 | charset.fast_map[i] = parent_charset->fast_map[i]; | |
949 | ||
950 | /* We also copy these for parents. */ | |
951 | charset.min_char = parent_charset->min_char; | |
952 | charset.max_char = parent_charset->max_char; | |
953 | } | |
954 | else if (! NILP (args[charset_arg_superset])) | |
955 | { | |
956 | val = args[charset_arg_superset]; | |
957 | charset.method = CHARSET_METHOD_SUPERSET; | |
3263d5a2 | 958 | val = Fcopy_sequence (val); |
374c5cfd | 959 | ASET (attrs, charset_superset, val); |
3263d5a2 KH |
960 | |
961 | charset.min_char = MAX_CHAR; | |
962 | charset.max_char = 0; | |
963 | for (; ! NILP (val); val = Fcdr (val)) | |
4ed46869 | 964 | { |
3263d5a2 KH |
965 | Lisp_Object elt, car_part, cdr_part; |
966 | int this_id, offset; | |
967 | struct charset *this_charset; | |
968 | ||
969 | elt = Fcar (val); | |
970 | if (CONSP (elt)) | |
971 | { | |
972 | car_part = XCAR (elt); | |
973 | cdr_part = XCDR (elt); | |
974 | CHECK_CHARSET_GET_ID (car_part, this_id); | |
975 | CHECK_NUMBER (cdr_part); | |
976 | offset = XINT (cdr_part); | |
977 | } | |
978 | else | |
4ed46869 | 979 | { |
3263d5a2 KH |
980 | CHECK_CHARSET_GET_ID (elt, this_id); |
981 | offset = 0; | |
4ed46869 | 982 | } |
3263d5a2 KH |
983 | XSETCAR (val, Fcons (make_number (this_id), make_number (offset))); |
984 | ||
985 | this_charset = CHARSET_FROM_ID (this_id); | |
986 | if (charset.min_char > this_charset->min_char) | |
987 | charset.min_char = this_charset->min_char; | |
988 | if (charset.max_char < this_charset->max_char) | |
989 | charset.max_char = this_charset->max_char; | |
990 | for (i = 0; i < 190; i++) | |
991 | charset.fast_map[i] |= this_charset->fast_map[i]; | |
4ed46869 | 992 | } |
4ed46869 | 993 | } |
3263d5a2 KH |
994 | else |
995 | error ("None of :code-offset, :map, :parents are specified"); | |
4ed46869 | 996 | |
3263d5a2 KH |
997 | val = args[charset_arg_unify_map]; |
998 | if (! NILP (val) && !STRINGP (val)) | |
999 | CHECK_VECTOR (val); | |
1000 | ASET (attrs, charset_unify_map, val); | |
4ed46869 | 1001 | |
3263d5a2 KH |
1002 | CHECK_LIST (args[charset_arg_plist]); |
1003 | ASET (attrs, charset_plist, args[charset_arg_plist]); | |
4ed46869 | 1004 | |
3263d5a2 KH |
1005 | charset.hash_index = hash_lookup (hash_table, args[charset_arg_name], |
1006 | &hash_code); | |
1007 | if (charset.hash_index >= 0) | |
1008 | { | |
1009 | new_definition_p = 0; | |
4f65af01 | 1010 | id = XFASTINT (CHARSET_SYMBOL_ID (args[charset_arg_name])); |
3263d5a2 KH |
1011 | HASH_VALUE (hash_table, charset.hash_index) = attrs; |
1012 | } | |
1a45ff10 | 1013 | else |
3263d5a2 KH |
1014 | { |
1015 | charset.hash_index = hash_put (hash_table, args[charset_arg_name], attrs, | |
1016 | hash_code); | |
1017 | if (charset_table_used == charset_table_size) | |
1018 | { | |
1019 | charset_table_size += 256; | |
1020 | charset_table | |
1021 | = ((struct charset *) | |
1022 | xrealloc (charset_table, | |
1023 | sizeof (struct charset) * charset_table_size)); | |
1024 | } | |
1025 | id = charset_table_used++; | |
3263d5a2 KH |
1026 | new_definition_p = 1; |
1027 | } | |
4ed46869 | 1028 | |
4f65af01 | 1029 | ASET (attrs, charset_id, make_number (id)); |
3263d5a2 KH |
1030 | charset.id = id; |
1031 | charset_table[id] = charset; | |
1032 | ||
1033 | if (charset.iso_final >= 0) | |
4ed46869 | 1034 | { |
3263d5a2 KH |
1035 | ISO_CHARSET_TABLE (charset.dimension, charset.iso_chars_96, |
1036 | charset.iso_final) = id; | |
1037 | if (new_definition_p) | |
1038 | Viso_2022_charset_list = nconc2 (Viso_2022_charset_list, | |
1039 | Fcons (make_number (id), Qnil)); | |
7c7dceee KH |
1040 | if (ISO_CHARSET_TABLE (1, 0, 'J') == id) |
1041 | charset_jisx0201_roman = id; | |
1042 | else if (ISO_CHARSET_TABLE (2, 0, '@') == id) | |
1043 | charset_jisx0208_1978 = id; | |
1044 | else if (ISO_CHARSET_TABLE (2, 0, 'B') == id) | |
1045 | charset_jisx0208 = id; | |
4ed46869 | 1046 | } |
3263d5a2 KH |
1047 | |
1048 | if (charset.emacs_mule_id >= 0) | |
4ed46869 | 1049 | { |
3263d5a2 | 1050 | emacs_mule_charset[charset.emacs_mule_id] = CHARSET_FROM_ID (id); |
4f65af01 KH |
1051 | if (charset.emacs_mule_id < 0xA0) |
1052 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 1; | |
3263d5a2 KH |
1053 | if (new_definition_p) |
1054 | Vemacs_mule_charset_list = nconc2 (Vemacs_mule_charset_list, | |
1055 | Fcons (make_number (id), Qnil)); | |
4ed46869 KH |
1056 | } |
1057 | ||
3263d5a2 KH |
1058 | if (new_definition_p) |
1059 | { | |
1060 | Vcharset_list = Fcons (args[charset_arg_name], Vcharset_list); | |
1061 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, | |
1062 | Fcons (make_number (id), Qnil)); | |
dbbb237d | 1063 | charset_ordered_list_tick++; |
3263d5a2 | 1064 | } |
4ed46869 | 1065 | |
3263d5a2 | 1066 | return Qnil; |
4ed46869 KH |
1067 | } |
1068 | ||
3263d5a2 KH |
1069 | DEFUN ("define-charset-alias", Fdefine_charset_alias, |
1070 | Sdefine_charset_alias, 2, 2, 0, | |
1071 | doc: /* Define ALIAS as an alias for charset CHARSET. */) | |
1072 | (alias, charset) | |
1073 | Lisp_Object alias, charset; | |
4ed46869 | 1074 | { |
3263d5a2 KH |
1075 | Lisp_Object attr; |
1076 | ||
1077 | CHECK_CHARSET_GET_ATTR (charset, attr); | |
1078 | Fputhash (alias, attr, Vcharset_hash_table); | |
528623a0 | 1079 | Vcharset_list = Fcons (alias, Vcharset_list); |
3263d5a2 KH |
1080 | return Qnil; |
1081 | } | |
4ed46869 | 1082 | |
4ed46869 | 1083 | |
3263d5a2 | 1084 | DEFUN ("primary-charset", Fprimary_charset, Sprimary_charset, 0, 0, 0, |
56a46d1d | 1085 | doc: /* Return the primary charset (set by `set-primary-charset'). */) |
3263d5a2 KH |
1086 | () |
1087 | { | |
1088 | return CHARSET_NAME (CHARSET_FROM_ID (charset_primary)); | |
1089 | } | |
4ed46869 | 1090 | |
4ed46869 | 1091 | |
3263d5a2 KH |
1092 | DEFUN ("set-primary-charset", Fset_primary_charset, Sset_primary_charset, |
1093 | 1, 1, 0, | |
56a46d1d DL |
1094 | doc: /* Set the primary charset to CHARSET. |
1095 | This determines how unibyte/multibyte conversion is done. See also | |
1096 | function `primary-charset'. */) | |
3263d5a2 KH |
1097 | (charset) |
1098 | Lisp_Object charset; | |
1099 | { | |
1100 | int id; | |
1101 | ||
1102 | CHECK_CHARSET_GET_ID (charset, id); | |
1103 | charset_primary = id; | |
4ed46869 KH |
1104 | return Qnil; |
1105 | } | |
1106 | ||
3263d5a2 KH |
1107 | |
1108 | DEFUN ("charset-plist", Fcharset_plist, Scharset_plist, 1, 1, 0, | |
56a46d1d | 1109 | doc: /* Return the property list of CHARSET. */) |
3263d5a2 KH |
1110 | (charset) |
1111 | Lisp_Object charset; | |
1112 | { | |
1113 | Lisp_Object attrs; | |
1114 | ||
1115 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1116 | return CHARSET_ATTR_PLIST (attrs); | |
1117 | } | |
1118 | ||
1119 | ||
1120 | DEFUN ("set-charset-plist", Fset_charset_plist, Sset_charset_plist, 2, 2, 0, | |
1121 | doc: /* Set CHARSET's property list to PLIST. */) | |
1122 | (charset, plist) | |
1123 | Lisp_Object charset, plist; | |
1124 | { | |
1125 | Lisp_Object attrs; | |
1126 | ||
1127 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1128 | CHARSET_ATTR_PLIST (attrs) = plist; | |
1129 | return plist; | |
1130 | } | |
1131 | ||
1132 | ||
dbbb237d | 1133 | DEFUN ("unify-charset", Funify_charset, Sunify_charset, 1, 3, 0, |
56a46d1d DL |
1134 | doc: /* Unify characters of CHARSET with Unicode. |
1135 | This means reading the relevant file and installing the table defined | |
dbbb237d KH |
1136 | by CHARSET's `:unify-map' property. |
1137 | ||
64165ae2 DL |
1138 | Optional second arg UNIFY-MAP is a file name string or a vector. It has |
1139 | the same meaning as the `:unify-map' attribute in the function | |
dbbb237d KH |
1140 | `define-charset' (which see). |
1141 | ||
1142 | Optional third argument DEUNIFY, if non-nil, means to de-unify CHARSET. */) | |
1143 | (charset, unify_map, deunify) | |
1144 | Lisp_Object charset, unify_map, deunify; | |
8a73a704 | 1145 | { |
3263d5a2 KH |
1146 | int id; |
1147 | struct charset *cs; | |
1148 | ||
1149 | CHECK_CHARSET_GET_ID (charset, id); | |
1150 | cs = CHARSET_FROM_ID (id); | |
1151 | if (CHARSET_METHOD (cs) == CHARSET_METHOD_MAP_DEFERRED) | |
1152 | load_charset (cs); | |
dbbb237d KH |
1153 | if (NILP (deunify) |
1154 | ? CHARSET_UNIFIED_P (cs) && ! NILP (CHARSET_DEUNIFIER (cs)) | |
1155 | : ! CHARSET_UNIFIED_P (cs)) | |
3263d5a2 | 1156 | return Qnil; |
dbbb237d | 1157 | |
3263d5a2 | 1158 | CHARSET_UNIFIED_P (cs) = 0; |
dbbb237d KH |
1159 | if (NILP (deunify)) |
1160 | { | |
1161 | if (CHARSET_METHOD (cs) != CHARSET_METHOD_OFFSET) | |
1162 | error ("Can't unify charset: %s", XSYMBOL (charset)->name->data); | |
1163 | if (NILP (unify_map)) | |
1164 | unify_map = CHARSET_UNIFY_MAP (cs); | |
1165 | if (STRINGP (unify_map)) | |
1166 | load_charset_map_from_file (cs, unify_map, 2); | |
1167 | else if (VECTORP (unify_map)) | |
1168 | load_charset_map_from_vector (cs, unify_map, 2); | |
1169 | else if (NILP (unify_map)) | |
1170 | error ("No unify-map for charset"); | |
1171 | else | |
1172 | error ("Bad unify-map arg"); | |
1173 | CHARSET_UNIFIED_P (cs) = 1; | |
1174 | } | |
1175 | else if (CHAR_TABLE_P (Vchar_unify_table)) | |
1176 | { | |
1177 | int min_code = CHARSET_MIN_CODE (cs); | |
1178 | int max_code = CHARSET_MAX_CODE (cs); | |
1179 | int min_char = DECODE_CHAR (cs, min_code); | |
1180 | int max_char = DECODE_CHAR (cs, max_code); | |
1181 | ||
1182 | char_table_set_range (Vchar_unify_table, min_char, max_char, Qnil); | |
1183 | } | |
1184 | ||
3263d5a2 | 1185 | return Qnil; |
8a73a704 KH |
1186 | } |
1187 | ||
3fac5a51 KH |
1188 | DEFUN ("get-unused-iso-final-char", Fget_unused_iso_final_char, |
1189 | Sget_unused_iso_final_char, 2, 2, 0, | |
3263d5a2 | 1190 | doc: /* |
1721b6af | 1191 | Return an unsed ISO final char for a charset of DIMENISION and CHARS. |
fdb82f93 PJ |
1192 | DIMENSION is the number of bytes to represent a character: 1 or 2. |
1193 | CHARS is the number of characters in a dimension: 94 or 96. | |
1194 | ||
1195 | This final char is for private use, thus the range is `0' (48) .. `?' (63). | |
1721b6af | 1196 | If there's no unused final char for the specified kind of charset, |
fdb82f93 PJ |
1197 | return nil. */) |
1198 | (dimension, chars) | |
3fac5a51 KH |
1199 | Lisp_Object dimension, chars; |
1200 | { | |
1201 | int final_char; | |
1202 | ||
b7826503 PJ |
1203 | CHECK_NUMBER (dimension); |
1204 | CHECK_NUMBER (chars); | |
3263d5a2 KH |
1205 | if (XINT (dimension) != 1 && XINT (dimension) != 2 && XINT (dimension) != 3) |
1206 | args_out_of_range_3 (dimension, make_number (1), make_number (3)); | |
3fac5a51 | 1207 | if (XINT (chars) != 94 && XINT (chars) != 96) |
3263d5a2 | 1208 | args_out_of_range_3 (chars, make_number (94), make_number (96)); |
3fac5a51 | 1209 | for (final_char = '0'; final_char <= '?'; final_char++) |
3263d5a2 KH |
1210 | if (ISO_CHARSET_TABLE (XINT (dimension), XINT (chars), final_char) < 0) |
1211 | break; | |
3fac5a51 KH |
1212 | return (final_char <= '?' ? make_number (final_char) : Qnil); |
1213 | } | |
1214 | ||
3263d5a2 KH |
1215 | static void |
1216 | check_iso_charset_parameter (dimension, chars, final_char) | |
1217 | Lisp_Object dimension, chars, final_char; | |
4ed46869 | 1218 | { |
3263d5a2 KH |
1219 | CHECK_NATNUM (dimension); |
1220 | CHECK_NATNUM (chars); | |
1221 | CHECK_NATNUM (final_char); | |
4ed46869 | 1222 | |
3263d5a2 KH |
1223 | if (XINT (dimension) > 3) |
1224 | error ("Invalid DIMENSION %d, it should be 1, 2, or 3", XINT (dimension)); | |
4ed46869 KH |
1225 | if (XINT (chars) != 94 && XINT (chars) != 96) |
1226 | error ("Invalid CHARS %d, it should be 94 or 96", XINT (chars)); | |
3263d5a2 | 1227 | if (XINT (final_char) < '0' || XINT (final_char) > '~') |
4ed46869 | 1228 | error ("Invalid FINAL-CHAR %c, it should be `0'..`~'", XINT (chars)); |
3263d5a2 KH |
1229 | } |
1230 | ||
1231 | ||
1232 | DEFUN ("declare-equiv-charset", Fdeclare_equiv_charset, Sdeclare_equiv_charset, | |
1233 | 4, 4, 0, | |
1234 | doc: /* | |
1235 | Declare a charset of DIMENSION, CHARS, FINAL-CHAR is the same as CHARSET. | |
56a46d1d | 1236 | CHARSET should be defined by `define-charset' in advance. */) |
3263d5a2 KH |
1237 | (dimension, chars, final_char, charset) |
1238 | Lisp_Object dimension, chars, final_char, charset; | |
1239 | { | |
1240 | int id; | |
4ed46869 | 1241 | |
3263d5a2 KH |
1242 | CHECK_CHARSET_GET_ID (charset, id); |
1243 | check_iso_charset_parameter (dimension, chars, final_char); | |
1244 | ||
16fed1fc | 1245 | ISO_CHARSET_TABLE (XINT (dimension), XINT (chars), XINT (final_char)) = id; |
4ed46869 KH |
1246 | return Qnil; |
1247 | } | |
1248 | ||
3263d5a2 | 1249 | |
2e344af3 KH |
1250 | /* Return information about charsets in the text at PTR of NBYTES |
1251 | bytes, which are NCHARS characters. The value is: | |
f6302ac9 | 1252 | |
cfe34140 | 1253 | 0: Each character is represented by one byte. This is always |
3263d5a2 KH |
1254 | true for a unibyte string. For a multibyte string, true if |
1255 | it contains only ASCII characters. | |
1256 | ||
28c026cd DL |
1257 | 1: No charsets other than ascii, control-1, and latin-1 are |
1258 | found. | |
1d67c29b | 1259 | |
3263d5a2 KH |
1260 | 2: Otherwise. |
1261 | */ | |
4ed46869 KH |
1262 | |
1263 | int | |
3263d5a2 KH |
1264 | string_xstring_p (string) |
1265 | Lisp_Object string; | |
4ed46869 | 1266 | { |
dbbb237d KH |
1267 | const unsigned char *p = XSTRING (string)->data; |
1268 | const unsigned char *endp = p + STRING_BYTES (XSTRING (string)); | |
3263d5a2 KH |
1269 | struct charset *charset; |
1270 | ||
1271 | if (XSTRING (string)->size == STRING_BYTES (XSTRING (string))) | |
1272 | return 0; | |
1273 | ||
1274 | charset = CHARSET_FROM_ID (charset_iso_8859_1); | |
1275 | while (p < endp) | |
0282eb69 | 1276 | { |
3263d5a2 | 1277 | int c = STRING_CHAR_ADVANCE (p); |
2e344af3 | 1278 | |
64165ae2 | 1279 | /* Fixme: comparison of unsigned expression < 0 is always false */ |
3263d5a2 KH |
1280 | if (ENCODE_CHAR (charset, c) < 0) |
1281 | return 2; | |
0282eb69 | 1282 | } |
3263d5a2 KH |
1283 | return 1; |
1284 | } | |
05505664 | 1285 | |
05505664 | 1286 | |
3263d5a2 | 1287 | /* Find charsets in the string at PTR of NCHARS and NBYTES. |
4ed46869 | 1288 | |
3263d5a2 KH |
1289 | CHARSETS is a vector. Each element is a cons of CHARSET and |
1290 | FOUND-FLAG. CHARSET is a charset id, and FOUND-FLAG is nil or t. | |
1291 | FOUND-FLAG t (or nil) means that the corresponding charset is | |
1292 | already found (or not yet found). | |
2e344af3 | 1293 | |
3263d5a2 | 1294 | It may lookup a translation table TABLE if supplied. */ |
2e344af3 | 1295 | |
3263d5a2 KH |
1296 | static void |
1297 | find_charsets_in_text (ptr, nchars, nbytes, charsets, table) | |
dbbb237d | 1298 | const unsigned char *ptr; |
3263d5a2 KH |
1299 | int nchars, nbytes; |
1300 | Lisp_Object charsets, table; | |
1301 | { | |
dbbb237d | 1302 | const unsigned char *pend = ptr + nbytes; |
3263d5a2 KH |
1303 | int ncharsets = ASIZE (charsets); |
1304 | ||
1305 | if (nchars == nbytes) | |
1306 | return; | |
1307 | ||
1308 | while (ptr < pend) | |
1309 | { | |
1310 | int c = STRING_CHAR_ADVANCE (ptr); | |
1311 | int i; | |
1312 | int all_found = 1; | |
1313 | Lisp_Object elt; | |
1314 | ||
1315 | if (!NILP (table)) | |
1316 | c = translate_char (table, c); | |
1317 | for (i = 0; i < ncharsets; i++) | |
1318 | { | |
1319 | elt = AREF (charsets, i); | |
1320 | if (NILP (XCDR (elt))) | |
1321 | { | |
1322 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (elt))); | |
1323 | ||
1324 | if (ENCODE_CHAR (charset, c) != CHARSET_INVALID_CODE (charset)) | |
1325 | XCDR (elt) = Qt; | |
1326 | else | |
1327 | all_found = 0; | |
1328 | } | |
4ed46869 | 1329 | } |
3263d5a2 KH |
1330 | if (all_found) |
1331 | break; | |
4ed46869 | 1332 | } |
4ed46869 KH |
1333 | } |
1334 | ||
28c026cd | 1335 | /* Fixme: returns nil for unibyte. */ |
4ed46869 | 1336 | DEFUN ("find-charset-region", Ffind_charset_region, Sfind_charset_region, |
23d2a7f1 | 1337 | 2, 3, 0, |
fdb82f93 PJ |
1338 | doc: /* Return a list of charsets in the region between BEG and END. |
1339 | BEG and END are buffer positions. | |
1340 | Optional arg TABLE if non-nil is a translation table to look up. | |
1341 | ||
fdb82f93 PJ |
1342 | If the current buffer is unibyte, the returned list may contain |
1343 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) | |
1344 | (beg, end, table) | |
23d2a7f1 | 1345 | Lisp_Object beg, end, table; |
4ed46869 | 1346 | { |
3263d5a2 | 1347 | Lisp_Object charsets; |
6ae1f27e | 1348 | int from, from_byte, to, stop, stop_byte, i; |
4ed46869 KH |
1349 | Lisp_Object val; |
1350 | ||
1351 | validate_region (&beg, &end); | |
1352 | from = XFASTINT (beg); | |
1353 | stop = to = XFASTINT (end); | |
6ae1f27e | 1354 | |
4ed46869 | 1355 | if (from < GPT && GPT < to) |
6ae1f27e RS |
1356 | { |
1357 | stop = GPT; | |
1358 | stop_byte = GPT_BYTE; | |
1359 | } | |
1360 | else | |
1361 | stop_byte = CHAR_TO_BYTE (stop); | |
1362 | ||
1363 | from_byte = CHAR_TO_BYTE (from); | |
1364 | ||
3263d5a2 KH |
1365 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
1366 | for (i = 0; i < charset_table_used; i++) | |
1367 | ASET (charsets, i, Fcons (make_number (i), Qnil)); | |
1368 | ||
4ed46869 KH |
1369 | while (1) |
1370 | { | |
3263d5a2 KH |
1371 | find_charsets_in_text (BYTE_POS_ADDR (from_byte), stop - from, |
1372 | stop_byte - from_byte, charsets, table); | |
4ed46869 | 1373 | if (stop < to) |
6ae1f27e RS |
1374 | { |
1375 | from = stop, from_byte = stop_byte; | |
1376 | stop = to, stop_byte = CHAR_TO_BYTE (stop); | |
1377 | } | |
4ed46869 KH |
1378 | else |
1379 | break; | |
1380 | } | |
6ae1f27e | 1381 | |
4ed46869 | 1382 | val = Qnil; |
3263d5a2 KH |
1383 | for (i = charset_table_used - 1; i >= 0; i--) |
1384 | if (!NILP (XCDR (AREF (charsets, i)))) | |
1385 | val = Fcons (CHARSET_NAME (charset_table + i), val); | |
4ed46869 KH |
1386 | return val; |
1387 | } | |
1388 | ||
28c026cd | 1389 | /* Fixme: returns nil for unibyte. */ |
4ed46869 | 1390 | DEFUN ("find-charset-string", Ffind_charset_string, Sfind_charset_string, |
23d2a7f1 | 1391 | 1, 2, 0, |
fdb82f93 PJ |
1392 | doc: /* Return a list of charsets in STR. |
1393 | Optional arg TABLE if non-nil is a translation table to look up. | |
1394 | ||
fdb82f93 | 1395 | If STR is unibyte, the returned list may contain |
3263d5a2 | 1396 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) |
fdb82f93 | 1397 | (str, table) |
23d2a7f1 | 1398 | Lisp_Object str, table; |
4ed46869 | 1399 | { |
3263d5a2 | 1400 | Lisp_Object charsets; |
4ed46869 KH |
1401 | int i; |
1402 | Lisp_Object val; | |
1403 | ||
b7826503 | 1404 | CHECK_STRING (str); |
87b089ad | 1405 | |
3263d5a2 | 1406 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
dcd50550 KH |
1407 | for (i = 0; i < charset_table_used; i++) |
1408 | ASET (charsets, i, Fcons (make_number (i), Qnil)); | |
3263d5a2 KH |
1409 | find_charsets_in_text (XSTRING (str)->data, XSTRING (str)->size, |
1410 | STRING_BYTES (XSTRING (str)), charsets, table); | |
2e344af3 | 1411 | |
4ed46869 | 1412 | val = Qnil; |
3263d5a2 KH |
1413 | for (i = charset_table_used - 1; i >= 0; i--) |
1414 | if (!NILP (XCDR (AREF (charsets, i)))) | |
1415 | val = Fcons (CHARSET_NAME (charset_table + i), val); | |
4ed46869 KH |
1416 | return val; |
1417 | } | |
2e344af3 | 1418 | |
4ed46869 | 1419 | \f |
3263d5a2 KH |
1420 | |
1421 | /* Return a character correponding to the code-point CODE of | |
1422 | CHARSET. */ | |
1423 | ||
1424 | int | |
1425 | decode_char (charset, code) | |
1426 | struct charset *charset; | |
1427 | unsigned code; | |
4ed46869 | 1428 | { |
3263d5a2 KH |
1429 | int c, char_index; |
1430 | enum charset_method method = CHARSET_METHOD (charset); | |
ac4137cc | 1431 | |
3263d5a2 KH |
1432 | if (code < CHARSET_MIN_CODE (charset) || code > CHARSET_MAX_CODE (charset)) |
1433 | return -1; | |
4ed46869 | 1434 | |
3263d5a2 | 1435 | if (method == CHARSET_METHOD_MAP_DEFERRED) |
ac4137cc | 1436 | { |
3263d5a2 KH |
1437 | load_charset (charset); |
1438 | method = CHARSET_METHOD (charset); | |
ac4137cc | 1439 | } |
4ed46869 | 1440 | |
374c5cfd KH |
1441 | if (method == CHARSET_METHOD_SUBSET) |
1442 | { | |
1443 | Lisp_Object subset_info; | |
1444 | ||
1445 | subset_info = CHARSET_SUBSET (charset); | |
1446 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1447 | code -= XINT (AREF (subset_info, 3)); | |
1448 | if (code < XFASTINT (AREF (subset_info, 1)) | |
1449 | || code > XFASTINT (AREF (subset_info, 2))) | |
1450 | c = -1; | |
1451 | else | |
1452 | c = DECODE_CHAR (charset, code); | |
1453 | } | |
1454 | else if (method == CHARSET_METHOD_SUPERSET) | |
2e344af3 | 1455 | { |
3263d5a2 | 1456 | Lisp_Object parents; |
4ed46869 | 1457 | |
374c5cfd | 1458 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 KH |
1459 | c = -1; |
1460 | for (; CONSP (parents); parents = XCDR (parents)) | |
1461 | { | |
1462 | int id = XINT (XCAR (XCAR (parents))); | |
1463 | int code_offset = XINT (XCDR (XCAR (parents))); | |
374c5cfd | 1464 | unsigned this_code = code - code_offset; |
9d3d8cba | 1465 | |
3263d5a2 KH |
1466 | charset = CHARSET_FROM_ID (id); |
1467 | if ((c = DECODE_CHAR (charset, this_code)) >= 0) | |
1468 | break; | |
1469 | } | |
1470 | } | |
1471 | else | |
ac4137cc | 1472 | { |
3263d5a2 | 1473 | char_index = CODE_POINT_TO_INDEX (charset, code); |
69f8de5b KH |
1474 | if (char_index < 0) |
1475 | return -1; | |
3263d5a2 KH |
1476 | |
1477 | if (method == CHARSET_METHOD_MAP) | |
ac4137cc | 1478 | { |
3263d5a2 KH |
1479 | Lisp_Object decoder; |
1480 | ||
1481 | decoder = CHARSET_DECODER (charset); | |
1482 | if (! VECTORP (decoder)) | |
1483 | return -1; | |
1484 | c = XINT (AREF (decoder, char_index)); | |
ac4137cc KH |
1485 | } |
1486 | else | |
1487 | { | |
3263d5a2 | 1488 | c = char_index + CHARSET_CODE_OFFSET (charset); |
ac4137cc KH |
1489 | } |
1490 | } | |
9d3d8cba | 1491 | |
3263d5a2 KH |
1492 | if (CHARSET_UNIFIED_P (charset) |
1493 | && c >= 0) | |
c449997d KH |
1494 | { |
1495 | MAYBE_UNIFY_CHAR (c); | |
1496 | } | |
d2665018 | 1497 | |
3263d5a2 | 1498 | return c; |
d2665018 KH |
1499 | } |
1500 | ||
374c5cfd KH |
1501 | /* Variable used temporarily by the macro ENCODE_CHAR. */ |
1502 | Lisp_Object charset_work; | |
1bcc1567 | 1503 | |
3263d5a2 | 1504 | /* Return a code-point of CHAR in CHARSET. If CHAR doesn't belong to |
28c026cd DL |
1505 | CHARSET, return CHARSET_INVALID_CODE (CHARSET). If STRICT is true, |
1506 | use CHARSET's strict_max_char instead of max_char. */ | |
1bcc1567 | 1507 | |
3263d5a2 KH |
1508 | unsigned |
1509 | encode_char (charset, c) | |
1510 | struct charset *charset; | |
9b6a601f KH |
1511 | int c; |
1512 | { | |
3263d5a2 KH |
1513 | unsigned code; |
1514 | enum charset_method method = CHARSET_METHOD (charset); | |
8ac5a9cc | 1515 | |
3263d5a2 | 1516 | if (CHARSET_UNIFIED_P (charset)) |
4ed46869 | 1517 | { |
374c5cfd | 1518 | Lisp_Object deunifier, deunified; |
4ed46869 | 1519 | |
3263d5a2 KH |
1520 | deunifier = CHARSET_DEUNIFIER (charset); |
1521 | if (! CHAR_TABLE_P (deunifier)) | |
1522 | { | |
dbbb237d | 1523 | Funify_charset (CHARSET_NAME (charset), Qnil, Qnil); |
3263d5a2 KH |
1524 | deunifier = CHARSET_DEUNIFIER (charset); |
1525 | } | |
374c5cfd KH |
1526 | deunified = CHAR_TABLE_REF (deunifier, c); |
1527 | if (! NILP (deunified)) | |
1528 | c = XINT (deunified); | |
4ed46869 | 1529 | } |
beeedaad | 1530 | |
3263d5a2 KH |
1531 | if (! CHARSET_FAST_MAP_REF ((c), charset->fast_map) |
1532 | || c < CHARSET_MIN_CHAR (charset) || c > CHARSET_MAX_CHAR (charset)) | |
1533 | return CHARSET_INVALID_CODE (charset); | |
beeedaad | 1534 | |
374c5cfd KH |
1535 | if (method == CHARSET_METHOD_SUBSET) |
1536 | { | |
1537 | Lisp_Object subset_info; | |
1538 | struct charset *this_charset; | |
1539 | ||
1540 | subset_info = CHARSET_SUBSET (charset); | |
1541 | this_charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1542 | code = ENCODE_CHAR (this_charset, c); | |
1543 | if (code == CHARSET_INVALID_CODE (this_charset) | |
1544 | || code < XFASTINT (AREF (subset_info, 1)) | |
1545 | || code > XFASTINT (AREF (subset_info, 2))) | |
1546 | return CHARSET_INVALID_CODE (charset); | |
1547 | code += XINT (AREF (subset_info, 3)); | |
1548 | return code; | |
1549 | } | |
1550 | ||
1551 | if (method == CHARSET_METHOD_SUPERSET) | |
859f2b3c | 1552 | { |
3263d5a2 | 1553 | Lisp_Object parents; |
859f2b3c | 1554 | |
374c5cfd | 1555 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 | 1556 | for (; CONSP (parents); parents = XCDR (parents)) |
beeedaad | 1557 | { |
3263d5a2 KH |
1558 | int id = XINT (XCAR (XCAR (parents))); |
1559 | int code_offset = XINT (XCDR (XCAR (parents))); | |
1560 | struct charset *this_charset = CHARSET_FROM_ID (id); | |
beeedaad | 1561 | |
3263d5a2 | 1562 | code = ENCODE_CHAR (this_charset, c); |
dbbb237d KH |
1563 | if (code != CHARSET_INVALID_CODE (this_charset)) |
1564 | return code + code_offset; | |
beeedaad | 1565 | } |
3263d5a2 KH |
1566 | return CHARSET_INVALID_CODE (charset); |
1567 | } | |
99529c2c | 1568 | |
3263d5a2 | 1569 | if (method == CHARSET_METHOD_MAP_DEFERRED) |
beeedaad | 1570 | { |
3263d5a2 KH |
1571 | load_charset (charset); |
1572 | method = CHARSET_METHOD (charset); | |
859f2b3c | 1573 | } |
beeedaad | 1574 | |
3263d5a2 | 1575 | if (method == CHARSET_METHOD_MAP) |
3f62427c | 1576 | { |
3263d5a2 | 1577 | Lisp_Object encoder; |
beeedaad | 1578 | Lisp_Object val; |
beeedaad | 1579 | |
3263d5a2 KH |
1580 | encoder = CHARSET_ENCODER (charset); |
1581 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
1582 | return CHARSET_INVALID_CODE (charset); | |
1583 | val = CHAR_TABLE_REF (encoder, c); | |
374c5cfd KH |
1584 | if (NILP (val)) |
1585 | return CHARSET_INVALID_CODE (charset); | |
e9ce014c KH |
1586 | code = XINT (val); |
1587 | if (! CHARSET_COMPACT_CODES_P (charset)) | |
1588 | code = INDEX_TO_CODE_POINT (charset, code); | |
3263d5a2 | 1589 | } |
820ee249 | 1590 | else /* method == CHARSET_METHOD_OFFSET */ |
beeedaad | 1591 | { |
3263d5a2 KH |
1592 | code = c - CHARSET_CODE_OFFSET (charset); |
1593 | code = INDEX_TO_CODE_POINT (charset, code); | |
3f62427c | 1594 | } |
beeedaad | 1595 | |
3263d5a2 | 1596 | return code; |
3f62427c KH |
1597 | } |
1598 | ||
4ed46869 | 1599 | |
3263d5a2 KH |
1600 | DEFUN ("decode-char", Fdecode_char, Sdecode_char, 2, 3, 0, |
1601 | doc: /* Decode the pair of CHARSET and CODE-POINT into a character. | |
1602 | Return nil if CODE-POINT is not valid in CHARSET. | |
4ed46869 | 1603 | |
3263d5a2 KH |
1604 | CODE-POINT may be a cons (HIGHER-16-BIT-VALUE . LOWER-16-BIT-VALUE). |
1605 | ||
1606 | Optional argument RESTRICTION specifies a way to map the pair of CCS | |
1607 | and CODE-POINT to a chracter. Currently not supported and just ignored. */) | |
1608 | (charset, code_point, restriction) | |
1609 | Lisp_Object charset, code_point, restriction; | |
4ed46869 | 1610 | { |
3263d5a2 KH |
1611 | int c, id; |
1612 | unsigned code; | |
1613 | struct charset *charsetp; | |
4ed46869 | 1614 | |
3263d5a2 KH |
1615 | CHECK_CHARSET_GET_ID (charset, id); |
1616 | if (CONSP (code_point)) | |
1617 | { | |
1618 | CHECK_NATNUM (XCAR (code_point)); | |
1619 | CHECK_NATNUM (XCDR (code_point)); | |
69f8de5b | 1620 | code = (XINT (XCAR (code_point)) << 16) | (XINT (XCDR (code_point))); |
3263d5a2 KH |
1621 | } |
1622 | else | |
1623 | { | |
1624 | CHECK_NATNUM (code_point); | |
1625 | code = XINT (code_point); | |
1626 | } | |
1627 | charsetp = CHARSET_FROM_ID (id); | |
1628 | c = DECODE_CHAR (charsetp, code); | |
1629 | return (c >= 0 ? make_number (c) : Qnil); | |
4ed46869 KH |
1630 | } |
1631 | ||
046b1f03 | 1632 | |
3263d5a2 KH |
1633 | DEFUN ("encode-char", Fencode_char, Sencode_char, 2, 3, 0, |
1634 | doc: /* Encode the character CH into a code-point of CHARSET. | |
1635 | Return nil if CHARSET doesn't include CH. | |
17e7ef1b | 1636 | |
3263d5a2 KH |
1637 | Optional argument RESTRICTION specifies a way to map CHAR to a |
1638 | code-point in CCS. Currently not supported and just ignored. */) | |
1639 | (ch, charset, restriction) | |
1640 | Lisp_Object ch, charset, restriction; | |
1641 | { | |
16fed1fc | 1642 | int id; |
3263d5a2 KH |
1643 | unsigned code; |
1644 | struct charset *charsetp; | |
046b1f03 | 1645 | |
3263d5a2 KH |
1646 | CHECK_CHARSET_GET_ID (charset, id); |
1647 | CHECK_NATNUM (ch); | |
3263d5a2 | 1648 | charsetp = CHARSET_FROM_ID (id); |
16fed1fc | 1649 | code = ENCODE_CHAR (charsetp, XINT (ch)); |
3263d5a2 KH |
1650 | if (code == CHARSET_INVALID_CODE (charsetp)) |
1651 | return Qnil; | |
1652 | if (code > 0x7FFFFFF) | |
1653 | return Fcons (make_number (code >> 16), make_number (code & 0xFFFF)); | |
1654 | return make_number (code); | |
6ae1f27e | 1655 | } |
9036eb45 | 1656 | |
87b089ad | 1657 | |
b121a744 KH |
1658 | DEFUN ("make-char", Fmake_char, Smake_char, 1, 5, 0, |
1659 | doc: | |
1660 | /* Return a character of CHARSET whose position codes are CODEn. | |
1661 | ||
1662 | CODE1 through CODE4 are optional, but if you don't supply sufficient | |
1663 | position codes, it is assumed that the minimum code in each dimension | |
04c2f2c5 | 1664 | is specified. */) |
b121a744 KH |
1665 | (charset, code1, code2, code3, code4) |
1666 | Lisp_Object charset, code1, code2, code3, code4; | |
87b089ad | 1667 | { |
3263d5a2 KH |
1668 | int id, dimension; |
1669 | struct charset *charsetp; | |
b121a744 KH |
1670 | unsigned code; |
1671 | int c; | |
87b089ad | 1672 | |
3263d5a2 KH |
1673 | CHECK_CHARSET_GET_ID (charset, id); |
1674 | charsetp = CHARSET_FROM_ID (id); | |
87b089ad | 1675 | |
b121a744 KH |
1676 | dimension = CHARSET_DIMENSION (charsetp); |
1677 | if (NILP (code1)) | |
d47073ca KH |
1678 | code = (CHARSET_ASCII_COMPATIBLE_P (charsetp) |
1679 | ? 0 : CHARSET_MIN_CODE (charsetp)); | |
3263d5a2 | 1680 | else |
87b089ad | 1681 | { |
b121a744 KH |
1682 | CHECK_NATNUM (code1); |
1683 | if (XFASTINT (code1) >= 0x100) | |
1684 | args_out_of_range (make_number (0xFF), code1); | |
1685 | code = XFASTINT (code1); | |
2e344af3 | 1686 | |
b0a1e45e | 1687 | if (dimension > 1) |
b121a744 KH |
1688 | { |
1689 | code <<= 8; | |
b0a1e45e KH |
1690 | if (NILP (code2)) |
1691 | code |= charsetp->code_space[(dimension - 2) * 4]; | |
b121a744 KH |
1692 | else |
1693 | { | |
b0a1e45e KH |
1694 | CHECK_NATNUM (code2); |
1695 | if (XFASTINT (code2) >= 0x100) | |
1696 | args_out_of_range (make_number (0xFF), code2); | |
1697 | code |= XFASTINT (code2); | |
b121a744 KH |
1698 | } |
1699 | ||
b0a1e45e | 1700 | if (dimension > 2) |
b121a744 KH |
1701 | { |
1702 | code <<= 8; | |
b0a1e45e KH |
1703 | if (NILP (code3)) |
1704 | code |= charsetp->code_space[(dimension - 3) * 4]; | |
b121a744 KH |
1705 | else |
1706 | { | |
b0a1e45e KH |
1707 | CHECK_NATNUM (code3); |
1708 | if (XFASTINT (code3) >= 0x100) | |
1709 | args_out_of_range (make_number (0xFF), code3); | |
1710 | code |= XFASTINT (code3); | |
1711 | } | |
1712 | ||
1713 | if (dimension > 3) | |
1714 | { | |
1715 | code <<= 8; | |
1716 | if (NILP (code4)) | |
1717 | code |= charsetp->code_space[0]; | |
1718 | else | |
1719 | { | |
1720 | CHECK_NATNUM (code4); | |
1721 | if (XFASTINT (code4) >= 0x100) | |
1722 | args_out_of_range (make_number (0xFF), code4); | |
1723 | code |= XFASTINT (code4); | |
1724 | } | |
b121a744 KH |
1725 | } |
1726 | } | |
1727 | } | |
1728 | } | |
3263d5a2 | 1729 | |
b121a744 KH |
1730 | if (CHARSET_ISO_FINAL (charsetp) >= 0) |
1731 | code &= 0x7F7F7F7F; | |
1732 | c = DECODE_CHAR (charsetp, code); | |
1733 | if (c < 0) | |
1734 | error ("Invalid code(s)"); | |
3263d5a2 | 1735 | return make_number (c); |
2e344af3 KH |
1736 | } |
1737 | ||
3263d5a2 KH |
1738 | |
1739 | /* Return the first charset in CHARSET_LIST that contains C. | |
1740 | CHARSET_LIST is a list of charset IDs. If it is nil, use | |
1741 | Vcharset_ordered_list. */ | |
1742 | ||
1743 | struct charset * | |
1744 | char_charset (c, charset_list, code_return) | |
1745 | int c; | |
1746 | Lisp_Object charset_list; | |
1747 | unsigned *code_return; | |
2e344af3 | 1748 | { |
3263d5a2 KH |
1749 | if (NILP (charset_list)) |
1750 | charset_list = Vcharset_ordered_list; | |
2e344af3 | 1751 | |
3263d5a2 | 1752 | while (CONSP (charset_list)) |
2e344af3 | 1753 | { |
3263d5a2 KH |
1754 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (charset_list))); |
1755 | unsigned code = ENCODE_CHAR (charset, c); | |
1756 | ||
1757 | if (code != CHARSET_INVALID_CODE (charset)) | |
1758 | { | |
1759 | if (code_return) | |
1760 | *code_return = code; | |
1761 | return charset; | |
1762 | } | |
1763 | charset_list = XCDR (charset_list); | |
2e344af3 | 1764 | } |
3263d5a2 | 1765 | return NULL; |
2e344af3 KH |
1766 | } |
1767 | ||
2e344af3 | 1768 | |
56a46d1d | 1769 | /* Fixme: `unknown' can't happen now? */ |
3263d5a2 | 1770 | DEFUN ("split-char", Fsplit_char, Ssplit_char, 1, 1, 0, |
04c2f2c5 | 1771 | doc: /*Return list of charset and one to three position-codes of CHAR. |
16fed1fc | 1772 | If CHAR is invalid as a character code, return a list `(unknown CHAR)'. */) |
3263d5a2 KH |
1773 | (ch) |
1774 | Lisp_Object ch; | |
2e344af3 | 1775 | { |
3263d5a2 KH |
1776 | struct charset *charset; |
1777 | int c, dimension; | |
1778 | unsigned code; | |
1779 | Lisp_Object val; | |
1780 | ||
1781 | CHECK_CHARACTER (ch); | |
1782 | c = XFASTINT (ch); | |
1783 | charset = CHAR_CHARSET (c); | |
1784 | if (! charset) | |
1785 | return Fcons (intern ("unknown"), Fcons (ch, Qnil)); | |
1786 | ||
1787 | code = ENCODE_CHAR (charset, c); | |
1788 | if (code == CHARSET_INVALID_CODE (charset)) | |
1789 | abort (); | |
1790 | dimension = CHARSET_DIMENSION (charset); | |
1791 | val = (dimension == 1 ? Fcons (make_number (code), Qnil) | |
1792 | : dimension == 2 ? Fcons (make_number (code >> 8), | |
1793 | Fcons (make_number (code & 0xFF), Qnil)) | |
1794 | : Fcons (make_number (code >> 16), | |
1795 | Fcons (make_number ((code >> 8) & 0xFF), | |
1796 | Fcons (make_number (code & 0xFF), Qnil)))); | |
1797 | return Fcons (CHARSET_NAME (charset), val); | |
2e344af3 | 1798 | } |
87b089ad | 1799 | |
740f080d | 1800 | |
3263d5a2 KH |
1801 | DEFUN ("char-charset", Fchar_charset, Schar_charset, 1, 1, 0, |
1802 | doc: /* Return the charset of highest priority that contains CHAR. */) | |
1803 | (ch) | |
1804 | Lisp_Object ch; | |
740f080d | 1805 | { |
3263d5a2 | 1806 | struct charset *charset; |
740f080d | 1807 | |
3263d5a2 KH |
1808 | CHECK_CHARACTER (ch); |
1809 | charset = CHAR_CHARSET (XINT (ch)); | |
1810 | return (CHARSET_NAME (charset)); | |
740f080d KH |
1811 | } |
1812 | ||
2e344af3 | 1813 | |
3263d5a2 KH |
1814 | DEFUN ("charset-after", Fcharset_after, Scharset_after, 0, 1, 0, |
1815 | doc: /* | |
1816 | Return charset of a character in the current buffer at position POS. | |
1817 | If POS is nil, it defauls to the current point. | |
1818 | If POS is out of range, the value is nil. */) | |
1819 | (pos) | |
1820 | Lisp_Object pos; | |
2e344af3 | 1821 | { |
3263d5a2 KH |
1822 | Lisp_Object ch; |
1823 | struct charset *charset; | |
1824 | ||
1825 | ch = Fchar_after (pos); | |
1826 | if (! INTEGERP (ch)) | |
1827 | return ch; | |
1828 | charset = CHAR_CHARSET (XINT (ch)); | |
1829 | return (CHARSET_NAME (charset)); | |
87b089ad RS |
1830 | } |
1831 | ||
2e344af3 | 1832 | |
3263d5a2 KH |
1833 | DEFUN ("iso-charset", Fiso_charset, Siso_charset, 3, 3, 0, |
1834 | doc: /* | |
1835 | Return charset of ISO's specification DIMENSION, CHARS, and FINAL-CHAR. | |
1836 | ||
1837 | ISO 2022's designation sequence (escape sequence) distinguishes charsets | |
1838 | by their DIMENSION, CHARS, and FINAL-CHAR, | |
1839 | where as Emacs distinguishes them by charset symbol. | |
1840 | See the documentation of the function `charset-info' for the meanings of | |
1841 | DIMENSION, CHARS, and FINAL-CHAR. */) | |
1842 | (dimension, chars, final_char) | |
1843 | Lisp_Object dimension, chars, final_char; | |
2e344af3 | 1844 | { |
3263d5a2 | 1845 | int id; |
2e344af3 | 1846 | |
3263d5a2 KH |
1847 | check_iso_charset_parameter (dimension, chars, final_char); |
1848 | id = ISO_CHARSET_TABLE (XFASTINT (dimension), XFASTINT (chars), | |
1849 | XFASTINT (final_char)); | |
1850 | return (id >= 0 ? CHARSET_NAME (CHARSET_FROM_ID (id)) : Qnil); | |
2e344af3 KH |
1851 | } |
1852 | ||
3263d5a2 KH |
1853 | |
1854 | DEFUN ("clear-charset-maps", Fclear_charset_maps, Sclear_charset_maps, | |
1855 | 0, 0, 0, | |
1856 | doc: /* | |
1857 | Clear encoder and decoder of charsets that are loaded from mapfiles. */) | |
1858 | () | |
4ed46869 | 1859 | { |
53316e55 | 1860 | int i; |
3263d5a2 KH |
1861 | struct charset *charset; |
1862 | Lisp_Object attrs; | |
4ed46869 | 1863 | |
3263d5a2 | 1864 | for (i = 0; i < charset_table_used; i++) |
4ed46869 | 1865 | { |
3263d5a2 KH |
1866 | charset = CHARSET_FROM_ID (i); |
1867 | attrs = CHARSET_ATTRIBUTES (charset); | |
1868 | ||
1869 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) | |
1870 | { | |
1871 | CHARSET_ATTR_DECODER (attrs) = Qnil; | |
1872 | CHARSET_ATTR_ENCODER (attrs) = Qnil; | |
1873 | CHARSET_METHOD (charset) = CHARSET_METHOD_MAP_DEFERRED; | |
1874 | } | |
1875 | ||
1876 | if (CHARSET_UNIFIED_P (charset)) | |
1877 | CHARSET_ATTR_DEUNIFIER (attrs) = Qnil; | |
5729c92f KH |
1878 | } |
1879 | ||
3263d5a2 | 1880 | if (CHAR_TABLE_P (Vchar_unified_charset_table)) |
5729c92f | 1881 | { |
3263d5a2 KH |
1882 | Foptimize_char_table (Vchar_unified_charset_table); |
1883 | Vchar_unify_table = Vchar_unified_charset_table; | |
1884 | Vchar_unified_charset_table = Qnil; | |
4ed46869 KH |
1885 | } |
1886 | ||
3263d5a2 | 1887 | return Qnil; |
4ed46869 KH |
1888 | } |
1889 | ||
8ddf5e57 DL |
1890 | DEFUN ("charset-priority-list", Fcharset_priority_list, |
1891 | Scharset_priority_list, 0, 1, 0, | |
1892 | doc: /* Return the list of charsets ordered by priority. | |
1893 | HIGHESTP non-nil means just return the highest priority one. */) | |
1894 | (highestp) | |
1895 | Lisp_Object highestp; | |
1896 | { | |
1897 | Lisp_Object val = Qnil, list = Vcharset_ordered_list; | |
1898 | ||
1899 | if (!NILP (highestp)) | |
16fed1fc | 1900 | return CHARSET_NAME (CHARSET_FROM_ID (XINT (Fcar (list)))); |
8ddf5e57 DL |
1901 | |
1902 | while (!NILP (list)) | |
1903 | { | |
16fed1fc | 1904 | val = Fcons (CHARSET_NAME (CHARSET_FROM_ID (XINT (XCAR (list)))), val); |
8ddf5e57 DL |
1905 | list = XCDR (list); |
1906 | } | |
1907 | return Fnreverse (val); | |
1908 | } | |
1909 | ||
1910 | DEFUN ("set-charset-priority", Fset_charset_priority, Sset_charset_priority, | |
1911 | 1, MANY, 0, | |
1912 | doc: /* Assign higher priority to the charsets given as arguments. | |
1913 | usage: (set-charset-priority &rest charsets) */) | |
1914 | (nargs, args) | |
1915 | int nargs; | |
1916 | Lisp_Object *args; | |
1917 | { | |
16fed1fc DL |
1918 | Lisp_Object new_head = Qnil, old_list, arglist[2]; |
1919 | int i, id; | |
8ddf5e57 DL |
1920 | |
1921 | old_list = Fcopy_sequence (Vcharset_ordered_list); | |
1922 | for (i = 0; i < nargs; i++) | |
1923 | { | |
1924 | CHECK_CHARSET_GET_ID (args[i], id); | |
16fed1fc DL |
1925 | old_list = Fdelq (make_number (id), old_list); |
1926 | new_head = Fcons (make_number (id), new_head); | |
8ddf5e57 DL |
1927 | } |
1928 | arglist[0] = Fnreverse (new_head); | |
1929 | arglist[1] = old_list; | |
1930 | Vcharset_ordered_list = Fnconc (2, arglist); | |
dbbb237d | 1931 | charset_ordered_list_tick++; |
8ddf5e57 DL |
1932 | return Qnil; |
1933 | } | |
4ed46869 | 1934 | \f |
3263d5a2 KH |
1935 | void |
1936 | init_charset () | |
4ed46869 | 1937 | { |
4ed46869 | 1938 | |
4ed46869 KH |
1939 | } |
1940 | ||
4ed46869 | 1941 | |
dfcf069d | 1942 | void |
4ed46869 KH |
1943 | init_charset_once () |
1944 | { | |
1945 | int i, j, k; | |
1946 | ||
3263d5a2 KH |
1947 | for (i = 0; i < ISO_MAX_DIMENSION; i++) |
1948 | for (j = 0; j < ISO_MAX_CHARS; j++) | |
1949 | for (k = 0; k < ISO_MAX_FINAL; k++) | |
1950 | iso_charset_table[i][j][k] = -1; | |
1951 | ||
1952 | for (i = 0; i < 255; i++) | |
1953 | emacs_mule_charset[i] = NULL; | |
4ed46869 | 1954 | |
7c7dceee KH |
1955 | charset_jisx0201_roman = -1; |
1956 | charset_jisx0208_1978 = -1; | |
1957 | charset_jisx0208 = -1; | |
1958 | ||
3263d5a2 KH |
1959 | #if 0 |
1960 | Vchar_charset_set = Fmake_char_table (Qnil, Qnil); | |
1961 | CHAR_TABLE_SET (Vchar_charset_set, make_number (97), Qnil); | |
1962 | ||
1963 | DEFSYM (Qcharset_encode_table, "charset-encode-table"); | |
4ed46869 KH |
1964 | |
1965 | /* Intern this now in case it isn't already done. | |
1966 | Setting this variable twice is harmless. | |
1967 | But don't staticpro it here--that is done in alloc.c. */ | |
1968 | Qchar_table_extra_slots = intern ("char-table-extra-slots"); | |
1969 | ||
3263d5a2 KH |
1970 | /* Now we are ready to set up this property, so we can create syntax |
1971 | tables. */ | |
1972 | Fput (Qcharset_encode_table, Qchar_table_extra_slots, make_number (0)); | |
1973 | #endif | |
4ed46869 KH |
1974 | } |
1975 | ||
1976 | #ifdef emacs | |
1977 | ||
dfcf069d | 1978 | void |
4ed46869 KH |
1979 | syms_of_charset () |
1980 | { | |
3263d5a2 KH |
1981 | char *p; |
1982 | ||
1983 | DEFSYM (Qcharsetp, "charsetp"); | |
1984 | ||
1985 | DEFSYM (Qascii, "ascii"); | |
1986 | DEFSYM (Qunicode, "unicode"); | |
1987 | DEFSYM (Qeight_bit_control, "eight-bit-control"); | |
1988 | DEFSYM (Qeight_bit_graphic, "eight-bit-graphic"); | |
1989 | DEFSYM (Qiso_8859_1, "iso-8859-1"); | |
1990 | ||
1991 | DEFSYM (Qgl, "gl"); | |
1992 | DEFSYM (Qgr, "gr"); | |
1993 | ||
1994 | p = (char *) xmalloc (30000); | |
1995 | ||
1996 | staticpro (&Vcharset_ordered_list); | |
1997 | Vcharset_ordered_list = Qnil; | |
1998 | ||
1999 | staticpro (&Viso_2022_charset_list); | |
2000 | Viso_2022_charset_list = Qnil; | |
2001 | ||
2002 | staticpro (&Vemacs_mule_charset_list); | |
2003 | Vemacs_mule_charset_list = Qnil; | |
2004 | ||
2005 | staticpro (&Vcharset_hash_table); | |
2006 | Vcharset_hash_table = Fmakehash (Qeq); | |
2007 | ||
2008 | charset_table_size = 128; | |
2009 | charset_table = ((struct charset *) | |
2010 | xmalloc (sizeof (struct charset) * charset_table_size)); | |
2011 | charset_table_used = 0; | |
2012 | ||
2013 | staticpro (&Vchar_unified_charset_table); | |
2014 | Vchar_unified_charset_table = Fmake_char_table (Qnil, make_number (-1)); | |
2015 | ||
2016 | defsubr (&Scharsetp); | |
2017 | defsubr (&Smap_charset_chars); | |
2018 | defsubr (&Sdefine_charset_internal); | |
2019 | defsubr (&Sdefine_charset_alias); | |
2020 | defsubr (&Sprimary_charset); | |
2021 | defsubr (&Sset_primary_charset); | |
2022 | defsubr (&Scharset_plist); | |
2023 | defsubr (&Sset_charset_plist); | |
2024 | defsubr (&Sunify_charset); | |
3fac5a51 | 2025 | defsubr (&Sget_unused_iso_final_char); |
4ed46869 KH |
2026 | defsubr (&Sdeclare_equiv_charset); |
2027 | defsubr (&Sfind_charset_region); | |
2028 | defsubr (&Sfind_charset_string); | |
3263d5a2 KH |
2029 | defsubr (&Sdecode_char); |
2030 | defsubr (&Sencode_char); | |
4ed46869 | 2031 | defsubr (&Ssplit_char); |
3263d5a2 | 2032 | defsubr (&Smake_char); |
4ed46869 | 2033 | defsubr (&Schar_charset); |
90d7b74e | 2034 | defsubr (&Scharset_after); |
4ed46869 | 2035 | defsubr (&Siso_charset); |
3263d5a2 | 2036 | defsubr (&Sclear_charset_maps); |
8ddf5e57 DL |
2037 | defsubr (&Scharset_priority_list); |
2038 | defsubr (&Sset_charset_priority); | |
3263d5a2 KH |
2039 | |
2040 | DEFVAR_LISP ("charset-map-directory", &Vcharset_map_directory, | |
2041 | doc: /* Directory of charset map files that come with GNU Emacs. | |
04c2f2c5 | 2042 | The default value is sub-directory "charsets" of `data-directory'. */); |
3263d5a2 KH |
2043 | Vcharset_map_directory = Fexpand_file_name (build_string ("charsets"), |
2044 | Vdata_directory); | |
4ed46869 KH |
2045 | |
2046 | DEFVAR_LISP ("charset-list", &Vcharset_list, | |
528623a0 | 2047 | doc: /* List of all charsets ever defined. */); |
3263d5a2 KH |
2048 | Vcharset_list = Qnil; |
2049 | ||
2050 | /* Make the prerequisite charset `ascii' and `unicode'. */ | |
2051 | { | |
2052 | Lisp_Object args[charset_arg_max]; | |
2053 | Lisp_Object plist[14]; | |
2054 | Lisp_Object val; | |
2055 | ||
2056 | plist[0] = intern (":name"); | |
3263d5a2 | 2057 | plist[2] = intern (":dimension"); |
3263d5a2 | 2058 | plist[4] = intern (":code-space"); |
3263d5a2 | 2059 | plist[6] = intern (":iso-final-char"); |
3263d5a2 | 2060 | plist[8] = intern (":emacs-mule-id"); |
3263d5a2 | 2061 | plist[10] = intern (":ascii-compatible-p"); |
820ee249 KH |
2062 | plist[12] = intern (":code-offset"); |
2063 | ||
2064 | args[charset_arg_name] = Qascii; | |
2065 | args[charset_arg_dimension] = make_number (1); | |
2066 | val = Fmake_vector (make_number (8), make_number (0)); | |
2067 | ASET (val, 1, make_number (127)); | |
2068 | args[charset_arg_code_space] = val; | |
2069 | args[charset_arg_min_code] = Qnil; | |
2070 | args[charset_arg_max_code] = Qnil; | |
2071 | args[charset_arg_iso_final] = make_number ('B'); | |
2072 | args[charset_arg_iso_revision] = Qnil; | |
2073 | args[charset_arg_emacs_mule_id] = make_number (0); | |
2074 | args[charset_arg_ascii_compatible_p] = Qt; | |
3263d5a2 KH |
2075 | args[charset_arg_supplementary_p] = Qnil; |
2076 | args[charset_arg_invalid_code] = Qnil; | |
820ee249 | 2077 | args[charset_arg_code_offset] = make_number (0); |
3263d5a2 | 2078 | args[charset_arg_map] = Qnil; |
374c5cfd KH |
2079 | args[charset_arg_subset] = Qnil; |
2080 | args[charset_arg_superset] = Qnil; | |
3263d5a2 KH |
2081 | args[charset_arg_unify_map] = Qnil; |
2082 | /* The actual plist is set by mule-conf.el. */ | |
820ee249 KH |
2083 | plist[1] = args[charset_arg_name]; |
2084 | plist[3] = args[charset_arg_dimension]; | |
2085 | plist[5] = args[charset_arg_code_space]; | |
2086 | plist[7] = args[charset_arg_iso_final]; | |
2087 | plist[9] = args[charset_arg_emacs_mule_id]; | |
2088 | plist[11] = args[charset_arg_ascii_compatible_p]; | |
2089 | plist[13] = args[charset_arg_code_offset]; | |
3263d5a2 KH |
2090 | args[charset_arg_plist] = Flist (14, plist); |
2091 | Fdefine_charset_internal (charset_arg_max, args); | |
16fed1fc | 2092 | charset_ascii = XINT (CHARSET_SYMBOL_ID (Qascii)); |
3263d5a2 | 2093 | |
820ee249 KH |
2094 | args[charset_arg_name] = Qunicode; |
2095 | args[charset_arg_dimension] = make_number (3); | |
3263d5a2 KH |
2096 | val = Fmake_vector (make_number (8), make_number (0)); |
2097 | ASET (val, 1, make_number (255)); | |
2098 | ASET (val, 3, make_number (255)); | |
2099 | ASET (val, 5, make_number (16)); | |
820ee249 KH |
2100 | args[charset_arg_code_space] = val; |
2101 | args[charset_arg_min_code] = Qnil; | |
2102 | args[charset_arg_max_code] = Qnil; | |
2103 | args[charset_arg_iso_final] = Qnil; | |
3263d5a2 | 2104 | args[charset_arg_iso_revision] = Qnil; |
820ee249 KH |
2105 | args[charset_arg_emacs_mule_id] = Qnil; |
2106 | args[charset_arg_ascii_compatible_p] = Qt; | |
3263d5a2 KH |
2107 | args[charset_arg_supplementary_p] = Qnil; |
2108 | args[charset_arg_invalid_code] = Qnil; | |
820ee249 | 2109 | args[charset_arg_code_offset] = make_number (0); |
3263d5a2 | 2110 | args[charset_arg_map] = Qnil; |
374c5cfd KH |
2111 | args[charset_arg_subset] = Qnil; |
2112 | args[charset_arg_superset] = Qnil; | |
3263d5a2 KH |
2113 | args[charset_arg_unify_map] = Qnil; |
2114 | /* The actual plist is set by mule-conf.el. */ | |
820ee249 KH |
2115 | plist[1] = args[charset_arg_name]; |
2116 | plist[3] = args[charset_arg_dimension]; | |
2117 | plist[5] = args[charset_arg_code_space]; | |
2118 | plist[7] = args[charset_arg_iso_final]; | |
2119 | plist[9] = args[charset_arg_emacs_mule_id]; | |
2120 | plist[11] = args[charset_arg_ascii_compatible_p]; | |
2121 | plist[13] = args[charset_arg_code_offset]; | |
3263d5a2 KH |
2122 | args[charset_arg_plist] = Flist (14, plist); |
2123 | Fdefine_charset_internal (charset_arg_max, args); | |
16fed1fc | 2124 | charset_unicode = XINT (CHARSET_SYMBOL_ID (Qunicode)); |
3263d5a2 | 2125 | } |
4ed46869 KH |
2126 | } |
2127 | ||
2128 | #endif /* emacs */ |