Mercurial > hg > xemacs-beta
annotate src/chartab.c @ 5088:207dad9e74f7
Signal an error upon reading 1/0.
Thanks to Ben Wing for finding the problem. See xemacs-patches message with ID
<870180fe1003021239k77d81203xb7b6f94ce83208b3@mail.gmail.com> and also
<d7ba68911002240223u36bb87c2nf4ccfde06b5519cc@mail.gmail.com> in xemacs-beta.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Tue, 02 Mar 2010 13:42:37 -0700 |
| parents | ae48681c47fa |
| children | b5df3737028a |
| rev | line source |
|---|---|
| 428 | 1 /* XEmacs routines to deal with char tables. |
| 2 Copyright (C) 1992, 1995 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1995 Sun Microsystems, Inc. | |
| 1296 | 4 Copyright (C) 1995, 1996, 2002, 2003 Ben Wing. |
| 428 | 5 Copyright (C) 1995, 1997, 1999 Electrotechnical Laboratory, JAPAN. |
| 6 Licensed to the Free Software Foundation. | |
| 7 | |
| 8 This file is part of XEmacs. | |
| 9 | |
| 10 XEmacs is free software; you can redistribute it and/or modify it | |
| 11 under the terms of the GNU General Public License as published by the | |
| 12 Free Software Foundation; either version 2, or (at your option) any | |
| 13 later version. | |
| 14 | |
| 15 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 18 for more details. | |
| 19 | |
| 20 You should have received a copy of the GNU General Public License | |
| 21 along with XEmacs; see the file COPYING. If not, write to | |
| 22 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 23 Boston, MA 02111-1307, USA. */ | |
| 24 | |
| 25 /* Synched up with: Mule 2.3. Not synched with FSF. | |
| 26 | |
| 27 This file was written independently of the FSF implementation, | |
| 28 and is not compatible. */ | |
| 29 | |
| 30 /* Authorship: | |
| 31 | |
| 32 Ben Wing: wrote, for 19.13 (Mule). Some category table stuff | |
| 33 loosely based on the original Mule. | |
| 34 Jareth Hein: fixed a couple of bugs in the implementation, and | |
| 35 added regex support for categories with check_category_at | |
| 36 */ | |
| 37 | |
| 38 #include <config.h> | |
| 39 #include "lisp.h" | |
| 40 | |
| 41 #include "buffer.h" | |
| 42 #include "chartab.h" | |
| 43 #include "syntax.h" | |
| 44 | |
| 45 Lisp_Object Qchar_tablep, Qchar_table; | |
| 46 | |
| 47 Lisp_Object Vall_syntax_tables; | |
| 48 | |
| 49 #ifdef MULE | |
| 50 Lisp_Object Qcategory_table_p; | |
| 51 Lisp_Object Qcategory_designator_p; | |
| 52 Lisp_Object Qcategory_table_value_p; | |
| 53 | |
| 54 Lisp_Object Vstandard_category_table; | |
| 55 | |
| 56 /* Variables to determine word boundary. */ | |
| 57 Lisp_Object Vword_combining_categories, Vword_separating_categories; | |
| 58 #endif /* MULE */ | |
| 59 | |
| 826 | 60 static int check_valid_char_table_value (Lisp_Object value, |
| 61 enum char_table_type type, | |
| 62 Error_Behavior errb); | |
| 63 | |
| 428 | 64 |
| 65 /* A char table maps from ranges of characters to values. | |
| 66 | |
| 67 Implementing a general data structure that maps from arbitrary | |
| 68 ranges of numbers to values is tricky to do efficiently. As it | |
| 69 happens, it should suffice (and is usually more convenient, anyway) | |
| 70 when dealing with characters to restrict the sorts of ranges that | |
| 71 can be assigned values, as follows: | |
| 72 | |
| 73 1) All characters. | |
| 74 2) All characters in a charset. | |
| 75 3) All characters in a particular row of a charset, where a "row" | |
| 76 means all characters with the same first byte. | |
| 77 4) A particular character in a charset. | |
| 78 | |
| 79 We use char tables to generalize the 256-element vectors now | |
| 80 littering the Emacs code. | |
| 81 | |
| 82 Possible uses (all should be converted at some point): | |
| 83 | |
| 84 1) category tables | |
| 85 2) syntax tables | |
| 86 3) display tables | |
| 87 4) case tables | |
| 88 5) keyboard-translate-table? | |
| 89 | |
| 90 We provide an | |
| 91 abstract type to generalize the Emacs vectors and Mule | |
| 92 vectors-of-vectors goo. | |
| 93 */ | |
| 94 | |
| 95 /************************************************************************/ | |
| 96 /* Char Table object */ | |
| 97 /************************************************************************/ | |
| 98 | |
| 99 #ifdef MULE | |
| 100 | |
| 101 static Lisp_Object | |
| 102 mark_char_table_entry (Lisp_Object obj) | |
| 103 { | |
| 440 | 104 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj); |
| 428 | 105 int i; |
| 106 | |
| 107 for (i = 0; i < 96; i++) | |
| 108 { | |
| 109 mark_object (cte->level2[i]); | |
| 110 } | |
| 111 return Qnil; | |
| 112 } | |
| 113 | |
| 114 static int | |
|
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115 char_table_entry_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, |
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116 int foldcase) |
| 428 | 117 { |
| 440 | 118 Lisp_Char_Table_Entry *cte1 = XCHAR_TABLE_ENTRY (obj1); |
| 119 Lisp_Char_Table_Entry *cte2 = XCHAR_TABLE_ENTRY (obj2); | |
| 428 | 120 int i; |
| 121 | |
| 122 for (i = 0; i < 96; i++) | |
|
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123 if (!internal_equal_0 (cte1->level2[i], cte2->level2[i], depth + 1, |
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parents:
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124 foldcase)) |
| 428 | 125 return 0; |
| 126 | |
| 127 return 1; | |
| 128 } | |
| 129 | |
| 665 | 130 static Hashcode |
| 428 | 131 char_table_entry_hash (Lisp_Object obj, int depth) |
| 132 { | |
| 440 | 133 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj); |
| 428 | 134 |
| 826 | 135 return internal_array_hash (cte->level2, 96, depth + 1); |
| 428 | 136 } |
| 137 | |
| 1204 | 138 static const struct memory_description char_table_entry_description[] = { |
| 440 | 139 { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table_Entry, level2), 96 }, |
| 428 | 140 { XD_END } |
| 141 }; | |
| 142 | |
| 934 | 143 DEFINE_LRECORD_IMPLEMENTATION ("char-table-entry", char_table_entry, |
| 144 1, /* dumpable flag */ | |
| 145 mark_char_table_entry, internal_object_printer, | |
| 146 0, char_table_entry_equal, | |
| 147 char_table_entry_hash, | |
| 148 char_table_entry_description, | |
| 149 Lisp_Char_Table_Entry); | |
| 150 | |
| 428 | 151 #endif /* MULE */ |
| 152 | |
| 153 static Lisp_Object | |
| 154 mark_char_table (Lisp_Object obj) | |
| 155 { | |
| 440 | 156 Lisp_Char_Table *ct = XCHAR_TABLE (obj); |
| 428 | 157 int i; |
| 158 | |
| 159 for (i = 0; i < NUM_ASCII_CHARS; i++) | |
| 160 mark_object (ct->ascii[i]); | |
| 161 #ifdef MULE | |
| 162 for (i = 0; i < NUM_LEADING_BYTES; i++) | |
| 163 mark_object (ct->level1[i]); | |
| 164 #endif | |
| 793 | 165 mark_object (ct->parent); |
| 166 mark_object (ct->default_); | |
| 428 | 167 return ct->mirror_table; |
| 168 } | |
| 169 | |
| 170 /* WARNING: All functions of this nature need to be written extremely | |
| 171 carefully to avoid crashes during GC. Cf. prune_specifiers() | |
| 172 and prune_weak_hash_tables(). */ | |
| 173 | |
| 174 void | |
| 175 prune_syntax_tables (void) | |
| 176 { | |
| 177 Lisp_Object rest, prev = Qnil; | |
| 178 | |
| 179 for (rest = Vall_syntax_tables; | |
| 180 !NILP (rest); | |
| 181 rest = XCHAR_TABLE (rest)->next_table) | |
| 182 { | |
| 183 if (! marked_p (rest)) | |
| 184 { | |
| 185 /* This table is garbage. Remove it from the list. */ | |
| 186 if (NILP (prev)) | |
| 187 Vall_syntax_tables = XCHAR_TABLE (rest)->next_table; | |
| 188 else | |
| 189 XCHAR_TABLE (prev)->next_table = | |
| 190 XCHAR_TABLE (rest)->next_table; | |
| 191 } | |
| 192 } | |
| 193 } | |
| 194 | |
| 195 static Lisp_Object | |
| 196 char_table_type_to_symbol (enum char_table_type type) | |
| 197 { | |
| 198 switch (type) | |
| 199 { | |
| 2500 | 200 default: ABORT(); |
| 428 | 201 case CHAR_TABLE_TYPE_GENERIC: return Qgeneric; |
| 202 case CHAR_TABLE_TYPE_SYNTAX: return Qsyntax; | |
| 203 case CHAR_TABLE_TYPE_DISPLAY: return Qdisplay; | |
| 204 case CHAR_TABLE_TYPE_CHAR: return Qchar; | |
| 205 #ifdef MULE | |
| 206 case CHAR_TABLE_TYPE_CATEGORY: return Qcategory; | |
| 207 #endif | |
| 208 } | |
| 209 } | |
| 210 | |
| 211 static enum char_table_type | |
| 212 symbol_to_char_table_type (Lisp_Object symbol) | |
| 213 { | |
| 214 CHECK_SYMBOL (symbol); | |
| 215 | |
| 216 if (EQ (symbol, Qgeneric)) return CHAR_TABLE_TYPE_GENERIC; | |
| 217 if (EQ (symbol, Qsyntax)) return CHAR_TABLE_TYPE_SYNTAX; | |
| 218 if (EQ (symbol, Qdisplay)) return CHAR_TABLE_TYPE_DISPLAY; | |
| 219 if (EQ (symbol, Qchar)) return CHAR_TABLE_TYPE_CHAR; | |
| 220 #ifdef MULE | |
| 221 if (EQ (symbol, Qcategory)) return CHAR_TABLE_TYPE_CATEGORY; | |
| 222 #endif | |
| 223 | |
| 563 | 224 invalid_constant ("Unrecognized char table type", symbol); |
| 1204 | 225 RETURN_NOT_REACHED (CHAR_TABLE_TYPE_GENERIC); |
| 428 | 226 } |
| 227 | |
| 228 static void | |
| 826 | 229 decode_char_table_range (Lisp_Object range, struct chartab_range *outrange) |
| 428 | 230 { |
| 4932 | 231 xzero (*outrange); |
| 826 | 232 if (EQ (range, Qt)) |
| 233 outrange->type = CHARTAB_RANGE_ALL; | |
| 234 else if (CHAR_OR_CHAR_INTP (range)) | |
| 235 { | |
| 236 outrange->type = CHARTAB_RANGE_CHAR; | |
| 237 outrange->ch = XCHAR_OR_CHAR_INT (range); | |
| 238 } | |
| 239 #ifndef MULE | |
| 428 | 240 else |
| 826 | 241 sferror ("Range must be t or a character", range); |
| 242 #else /* MULE */ | |
| 243 else if (VECTORP (range)) | |
| 244 { | |
| 245 Lisp_Vector *vec = XVECTOR (range); | |
| 246 Lisp_Object *elts = vector_data (vec); | |
| 247 if (vector_length (vec) != 2) | |
| 248 sferror ("Length of charset row vector must be 2", | |
| 249 range); | |
| 250 outrange->type = CHARTAB_RANGE_ROW; | |
| 251 outrange->charset = Fget_charset (elts[0]); | |
| 252 CHECK_INT (elts[1]); | |
| 253 outrange->row = XINT (elts[1]); | |
| 254 switch (XCHARSET_TYPE (outrange->charset)) | |
| 255 { | |
| 256 case CHARSET_TYPE_94: | |
| 257 case CHARSET_TYPE_96: | |
| 258 sferror ("Charset in row vector must be multi-byte", | |
| 259 outrange->charset); | |
| 260 case CHARSET_TYPE_94X94: | |
| 261 check_int_range (outrange->row, 33, 126); | |
| 262 break; | |
| 263 case CHARSET_TYPE_96X96: | |
| 264 check_int_range (outrange->row, 32, 127); | |
| 265 break; | |
| 266 default: | |
| 2500 | 267 ABORT (); |
| 826 | 268 } |
| 269 } | |
| 270 else | |
| 271 { | |
| 272 if (!CHARSETP (range) && !SYMBOLP (range)) | |
| 273 sferror | |
| 274 ("Char table range must be t, charset, char, or vector", range); | |
| 275 outrange->type = CHARTAB_RANGE_CHARSET; | |
| 276 outrange->charset = Fget_charset (range); | |
| 277 } | |
| 278 #endif /* MULE */ | |
| 428 | 279 } |
| 280 | |
| 826 | 281 static Lisp_Object |
| 282 encode_char_table_range (struct chartab_range *range) | |
| 428 | 283 { |
| 826 | 284 switch (range->type) |
| 428 | 285 { |
| 826 | 286 case CHARTAB_RANGE_ALL: |
| 287 return Qt; | |
| 288 | |
| 289 #ifdef MULE | |
| 290 case CHARTAB_RANGE_CHARSET: | |
| 291 return XCHARSET_NAME (Fget_charset (range->charset)); | |
| 428 | 292 |
| 826 | 293 case CHARTAB_RANGE_ROW: |
| 294 return vector2 (XCHARSET_NAME (Fget_charset (range->charset)), | |
| 295 make_int (range->row)); | |
| 296 #endif | |
| 297 case CHARTAB_RANGE_CHAR: | |
| 298 return make_char (range->ch); | |
| 299 default: | |
| 2500 | 300 ABORT (); |
| 428 | 301 } |
| 826 | 302 return Qnil; /* not reached */ |
| 428 | 303 } |
| 304 | |
| 826 | 305 struct ptemap |
| 428 | 306 { |
| 826 | 307 Lisp_Object printcharfun; |
| 308 int first; | |
| 309 }; | |
| 428 | 310 |
| 826 | 311 static int |
| 2286 | 312 print_table_entry (struct chartab_range *range, Lisp_Object UNUSED (table), |
| 826 | 313 Lisp_Object val, void *arg) |
| 314 { | |
| 315 struct ptemap *a = (struct ptemap *) arg; | |
| 316 struct gcpro gcpro1; | |
| 317 Lisp_Object lisprange; | |
| 318 if (!a->first) | |
|
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319 write_ascstring (a->printcharfun, " "); |
| 826 | 320 a->first = 0; |
| 321 lisprange = encode_char_table_range (range); | |
| 322 GCPRO1 (lisprange); | |
|
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323 write_fmt_string_lisp (a->printcharfun, "%s %S", 2, lisprange, val); |
| 826 | 324 UNGCPRO; |
| 325 return 0; | |
| 428 | 326 } |
| 327 | |
| 328 static void | |
| 2286 | 329 print_char_table (Lisp_Object obj, Lisp_Object printcharfun, |
| 330 int UNUSED (escapeflag)) | |
| 428 | 331 { |
| 440 | 332 Lisp_Char_Table *ct = XCHAR_TABLE (obj); |
| 826 | 333 struct chartab_range range; |
| 334 struct ptemap arg; | |
| 335 | |
| 336 range.type = CHARTAB_RANGE_ALL; | |
| 337 arg.printcharfun = printcharfun; | |
| 338 arg.first = 1; | |
| 428 | 339 |
| 793 | 340 write_fmt_string_lisp (printcharfun, "#s(char-table type %s data (", |
| 341 1, char_table_type_to_symbol (ct->type)); | |
| 826 | 342 map_char_table (obj, &range, print_table_entry, &arg); |
|
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parents:
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changeset
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343 write_ascstring (printcharfun, "))"); |
| 428 | 344 |
| 826 | 345 /* #### need to print and read the default; but that will allow the |
| 346 default to be modified, which we don't (yet) support -- but FSF does */ | |
| 428 | 347 } |
| 348 | |
| 349 static int | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4580
diff
changeset
|
350 char_table_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, int foldcase) |
| 428 | 351 { |
| 440 | 352 Lisp_Char_Table *ct1 = XCHAR_TABLE (obj1); |
| 353 Lisp_Char_Table *ct2 = XCHAR_TABLE (obj2); | |
| 428 | 354 int i; |
| 355 | |
| 356 if (CHAR_TABLE_TYPE (ct1) != CHAR_TABLE_TYPE (ct2)) | |
| 357 return 0; | |
| 358 | |
| 359 for (i = 0; i < NUM_ASCII_CHARS; i++) | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4580
diff
changeset
|
360 if (!internal_equal_0 (ct1->ascii[i], ct2->ascii[i], depth + 1, foldcase)) |
| 428 | 361 return 0; |
| 362 | |
| 363 #ifdef MULE | |
| 364 for (i = 0; i < NUM_LEADING_BYTES; i++) | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4580
diff
changeset
|
365 if (!internal_equal_0 (ct1->level1[i], ct2->level1[i], depth + 1, foldcase)) |
| 428 | 366 return 0; |
| 367 #endif /* MULE */ | |
| 368 | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4580
diff
changeset
|
369 return internal_equal_0 (ct1->default_, ct2->default_, depth + 1, foldcase); |
| 428 | 370 } |
| 371 | |
| 665 | 372 static Hashcode |
| 428 | 373 char_table_hash (Lisp_Object obj, int depth) |
| 374 { | |
| 440 | 375 Lisp_Char_Table *ct = XCHAR_TABLE (obj); |
| 665 | 376 Hashcode hashval = internal_array_hash (ct->ascii, NUM_ASCII_CHARS, |
| 826 | 377 depth + 1); |
| 428 | 378 #ifdef MULE |
| 379 hashval = HASH2 (hashval, | |
| 826 | 380 internal_array_hash (ct->level1, NUM_LEADING_BYTES, |
| 381 depth + 1)); | |
| 428 | 382 #endif /* MULE */ |
| 826 | 383 return HASH2 (hashval, internal_hash (ct->default_, depth + 1)); |
| 428 | 384 } |
| 385 | |
| 1204 | 386 static const struct memory_description char_table_description[] = { |
| 440 | 387 { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table, ascii), NUM_ASCII_CHARS }, |
| 428 | 388 #ifdef MULE |
| 440 | 389 { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table, level1), NUM_LEADING_BYTES }, |
| 428 | 390 #endif |
| 793 | 391 { XD_LISP_OBJECT, offsetof (Lisp_Char_Table, parent) }, |
| 392 { XD_LISP_OBJECT, offsetof (Lisp_Char_Table, default_) }, | |
| 440 | 393 { XD_LISP_OBJECT, offsetof (Lisp_Char_Table, mirror_table) }, |
| 394 { XD_LO_LINK, offsetof (Lisp_Char_Table, next_table) }, | |
| 428 | 395 { XD_END } |
| 396 }; | |
| 397 | |
| 934 | 398 DEFINE_LRECORD_IMPLEMENTATION ("char-table", char_table, |
| 399 1, /*dumpable-flag*/ | |
| 400 mark_char_table, print_char_table, 0, | |
| 401 char_table_equal, char_table_hash, | |
| 402 char_table_description, | |
| 403 Lisp_Char_Table); | |
| 428 | 404 |
| 405 DEFUN ("char-table-p", Fchar_table_p, 1, 1, 0, /* | |
| 406 Return non-nil if OBJECT is a char table. | |
| 407 */ | |
| 408 (object)) | |
| 409 { | |
| 410 return CHAR_TABLEP (object) ? Qt : Qnil; | |
| 411 } | |
| 412 | |
| 413 DEFUN ("char-table-type-list", Fchar_table_type_list, 0, 0, 0, /* | |
| 414 Return a list of the recognized char table types. | |
| 800 | 415 See `make-char-table'. |
| 428 | 416 */ |
| 417 ()) | |
| 418 { | |
| 419 #ifdef MULE | |
| 420 return list5 (Qchar, Qcategory, Qdisplay, Qgeneric, Qsyntax); | |
| 421 #else | |
| 422 return list4 (Qchar, Qdisplay, Qgeneric, Qsyntax); | |
| 423 #endif | |
| 424 } | |
| 425 | |
| 426 DEFUN ("valid-char-table-type-p", Fvalid_char_table_type_p, 1, 1, 0, /* | |
| 427 Return t if TYPE if a recognized char table type. | |
| 800 | 428 See `make-char-table'. |
| 428 | 429 */ |
| 430 (type)) | |
| 431 { | |
| 432 return (EQ (type, Qchar) || | |
| 433 #ifdef MULE | |
| 434 EQ (type, Qcategory) || | |
| 435 #endif | |
| 436 EQ (type, Qdisplay) || | |
| 437 EQ (type, Qgeneric) || | |
| 438 EQ (type, Qsyntax)) ? Qt : Qnil; | |
| 439 } | |
| 440 | |
| 441 DEFUN ("char-table-type", Fchar_table_type, 1, 1, 0, /* | |
| 444 | 442 Return the type of CHAR-TABLE. |
| 800 | 443 See `make-char-table'. |
| 428 | 444 */ |
| 444 | 445 (char_table)) |
| 428 | 446 { |
| 444 | 447 CHECK_CHAR_TABLE (char_table); |
| 448 return char_table_type_to_symbol (XCHAR_TABLE (char_table)->type); | |
| 428 | 449 } |
| 450 | |
| 1296 | 451 static void |
| 452 set_char_table_dirty (Lisp_Object table) | |
| 453 { | |
| 454 assert (!XCHAR_TABLE (table)->mirror_table_p); | |
| 455 XCHAR_TABLE (XCHAR_TABLE (table)->mirror_table)->dirty = 1; | |
| 456 } | |
| 457 | |
| 428 | 458 void |
| 826 | 459 set_char_table_default (Lisp_Object table, Lisp_Object value) |
| 460 { | |
| 461 Lisp_Char_Table *ct = XCHAR_TABLE (table); | |
| 462 ct->default_ = value; | |
| 463 if (ct->type == CHAR_TABLE_TYPE_SYNTAX) | |
| 1296 | 464 set_char_table_dirty (table); |
| 826 | 465 } |
| 466 | |
| 467 static void | |
| 440 | 468 fill_char_table (Lisp_Char_Table *ct, Lisp_Object value) |
| 428 | 469 { |
| 470 int i; | |
| 471 | |
| 472 for (i = 0; i < NUM_ASCII_CHARS; i++) | |
| 473 ct->ascii[i] = value; | |
| 474 #ifdef MULE | |
| 475 for (i = 0; i < NUM_LEADING_BYTES; i++) | |
| 1296 | 476 { |
| 1330 | 477 /* Don't get stymied when initting the table, or when trying to |
| 478 free a pdump object. */ | |
| 1296 | 479 if (!EQ (ct->level1[i], Qnull_pointer) && |
| 1330 | 480 CHAR_TABLE_ENTRYP (ct->level1[i]) && |
| 481 !OBJECT_DUMPED_P (ct->level1[1])) | |
| 3017 | 482 FREE_LCRECORD (ct->level1[i]); |
| 1296 | 483 ct->level1[i] = value; |
| 484 } | |
| 428 | 485 #endif /* MULE */ |
| 486 | |
| 487 if (ct->type == CHAR_TABLE_TYPE_SYNTAX) | |
| 1296 | 488 set_char_table_dirty (wrap_char_table (ct)); |
| 428 | 489 } |
| 490 | |
| 491 DEFUN ("reset-char-table", Freset_char_table, 1, 1, 0, /* | |
| 444 | 492 Reset CHAR-TABLE to its default state. |
| 428 | 493 */ |
| 444 | 494 (char_table)) |
| 428 | 495 { |
| 440 | 496 Lisp_Char_Table *ct; |
| 826 | 497 Lisp_Object def; |
| 428 | 498 |
| 444 | 499 CHECK_CHAR_TABLE (char_table); |
| 500 ct = XCHAR_TABLE (char_table); | |
| 428 | 501 |
| 502 switch (ct->type) | |
| 503 { | |
| 504 case CHAR_TABLE_TYPE_CHAR: | |
| 826 | 505 def = make_char (0); |
| 428 | 506 break; |
| 507 case CHAR_TABLE_TYPE_DISPLAY: | |
| 508 case CHAR_TABLE_TYPE_GENERIC: | |
| 509 #ifdef MULE | |
| 510 case CHAR_TABLE_TYPE_CATEGORY: | |
| 511 #endif /* MULE */ | |
| 826 | 512 def = Qnil; |
| 428 | 513 break; |
| 514 | |
| 515 case CHAR_TABLE_TYPE_SYNTAX: | |
| 826 | 516 def = make_int (Sinherit); |
| 428 | 517 break; |
| 518 | |
| 519 default: | |
| 2500 | 520 ABORT (); |
| 826 | 521 def = Qnil; |
| 522 break; | |
| 428 | 523 } |
| 524 | |
| 826 | 525 /* Avoid doubly updating the syntax table by setting the default ourselves, |
| 526 since set_char_table_default() also updates. */ | |
| 527 ct->default_ = def; | |
| 528 fill_char_table (ct, Qunbound); | |
| 529 | |
| 428 | 530 return Qnil; |
| 531 } | |
| 532 | |
| 533 DEFUN ("make-char-table", Fmake_char_table, 1, 1, 0, /* | |
| 534 Return a new, empty char table of type TYPE. | |
| 800 | 535 |
| 536 A char table is a table that maps characters (or ranges of characters) | |
| 537 to values. Char tables are specialized for characters, only allowing | |
| 538 particular sorts of ranges to be assigned values. Although this | |
| 539 loses in generality, it makes for extremely fast (constant-time) | |
| 540 lookups, and thus is feasible for applications that do an extremely | |
| 541 large number of lookups (e.g. scanning a buffer for a character in | |
| 542 a particular syntax, where a lookup in the syntax table must occur | |
| 543 once per character). | |
| 544 | |
| 545 When Mule support exists, the types of ranges that can be assigned | |
| 546 values are | |
| 547 | |
| 2714 | 548 -- all characters (represented by t) |
| 800 | 549 -- an entire charset |
| 2714 | 550 -- a single row in a two-octet charset (represented by a vector of two |
| 551 elements: a two-octet charset and a row number; the row must be an | |
| 552 integer, not a character) | |
| 800 | 553 -- a single character |
| 554 | |
| 555 When Mule support is not present, the types of ranges that can be | |
| 556 assigned values are | |
| 557 | |
| 2714 | 558 -- all characters (represented by t) |
| 800 | 559 -- a single character |
| 560 | |
| 561 To create a char table, use `make-char-table'. | |
| 562 To modify a char table, use `put-char-table' or `remove-char-table'. | |
| 563 To retrieve the value for a particular character, use `get-char-table'. | |
| 826 | 564 See also `map-char-table', `reset-char-table', `copy-char-table', |
| 800 | 565 `char-table-p', `valid-char-table-type-p', `char-table-type-list', |
| 566 `valid-char-table-value-p', and `check-char-table-value'. | |
| 567 | |
| 568 Each char table type is used for a different purpose and allows different | |
| 569 sorts of values. The different char table types are | |
| 570 | |
| 571 `category' | |
|
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572 Used for category tables, which specify the regexp categories that a |
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573 character is in. The valid values are nil or a bit vector of 95 |
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574 elements, and values default to nil. Higher-level Lisp functions |
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575 are provided for working with category tables. Currently categories |
| 800 | 576 and category tables only exist when Mule support is present. |
| 577 `char' | |
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578 A generalized char table, for mapping from one character to another. |
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579 Used for case tables, syntax matching tables, |
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580 `keyboard-translate-table', etc. The valid values are characters, |
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581 and the default result given by `get-char-table' if a value hasn't |
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582 been set for a given character or for a range that includes it, is |
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583 ?\x00. |
| 800 | 584 `generic' |
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585 An even more generalized char table, for mapping from a character to |
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586 anything. The default result given by `get-char-table' is nil. |
| 800 | 587 `display' |
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588 Used for display tables, which specify how a particular character is |
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589 to appear when displayed. #### Not yet implemented; currently, the |
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590 display table code uses generic char tables, and it's not clear that |
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591 implementing this char table type would be useful. |
| 800 | 592 `syntax' |
| 593 Used for syntax tables, which specify the syntax of a particular | |
| 594 character. Higher-level Lisp functions are provided for | |
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595 working with syntax tables. The valid values are integers, and the |
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596 default result given by `get-char-table' is the syntax code for |
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597 `inherit'. |
| 428 | 598 */ |
| 599 (type)) | |
| 600 { | |
| 440 | 601 Lisp_Char_Table *ct; |
| 428 | 602 Lisp_Object obj; |
| 603 enum char_table_type ty = symbol_to_char_table_type (type); | |
| 604 | |
| 3017 | 605 ct = ALLOC_LCRECORD_TYPE (Lisp_Char_Table, &lrecord_char_table); |
| 428 | 606 ct->type = ty; |
| 1296 | 607 obj = wrap_char_table (ct); |
| 428 | 608 if (ty == CHAR_TABLE_TYPE_SYNTAX) |
| 609 { | |
| 826 | 610 /* Qgeneric not Qsyntax because a syntax table has a mirror table |
| 611 and we don't want infinite recursion */ | |
| 428 | 612 ct->mirror_table = Fmake_char_table (Qgeneric); |
| 3145 | 613 set_char_table_default (ct->mirror_table, make_int (Sword)); |
| 1296 | 614 XCHAR_TABLE (ct->mirror_table)->mirror_table_p = 1; |
| 615 XCHAR_TABLE (ct->mirror_table)->mirror_table = obj; | |
| 428 | 616 } |
| 617 else | |
| 618 ct->mirror_table = Qnil; | |
| 619 ct->next_table = Qnil; | |
| 793 | 620 ct->parent = Qnil; |
| 621 ct->default_ = Qnil; | |
| 428 | 622 if (ty == CHAR_TABLE_TYPE_SYNTAX) |
| 623 { | |
| 624 ct->next_table = Vall_syntax_tables; | |
| 625 Vall_syntax_tables = obj; | |
| 626 } | |
| 627 Freset_char_table (obj); | |
| 628 return obj; | |
| 629 } | |
| 630 | |
| 631 #ifdef MULE | |
| 632 | |
| 633 static Lisp_Object | |
| 634 make_char_table_entry (Lisp_Object initval) | |
| 635 { | |
| 636 int i; | |
| 440 | 637 Lisp_Char_Table_Entry *cte = |
| 3017 | 638 ALLOC_LCRECORD_TYPE (Lisp_Char_Table_Entry, &lrecord_char_table_entry); |
| 428 | 639 |
| 640 for (i = 0; i < 96; i++) | |
| 641 cte->level2[i] = initval; | |
| 642 | |
| 793 | 643 return wrap_char_table_entry (cte); |
| 428 | 644 } |
| 645 | |
| 646 static Lisp_Object | |
| 647 copy_char_table_entry (Lisp_Object entry) | |
| 648 { | |
| 440 | 649 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (entry); |
| 428 | 650 int i; |
| 440 | 651 Lisp_Char_Table_Entry *ctenew = |
| 3017 | 652 ALLOC_LCRECORD_TYPE (Lisp_Char_Table_Entry, &lrecord_char_table_entry); |
| 428 | 653 |
| 654 for (i = 0; i < 96; i++) | |
| 655 { | |
| 3025 | 656 Lisp_Object new_ = cte->level2[i]; |
| 657 if (CHAR_TABLE_ENTRYP (new_)) | |
| 658 ctenew->level2[i] = copy_char_table_entry (new_); | |
| 428 | 659 else |
| 3025 | 660 ctenew->level2[i] = new_; |
| 428 | 661 } |
| 662 | |
| 793 | 663 return wrap_char_table_entry (ctenew); |
| 428 | 664 } |
| 665 | |
| 666 #endif /* MULE */ | |
| 667 | |
| 668 DEFUN ("copy-char-table", Fcopy_char_table, 1, 1, 0, /* | |
| 444 | 669 Return a new char table which is a copy of CHAR-TABLE. |
| 428 | 670 It will contain the same values for the same characters and ranges |
| 444 | 671 as CHAR-TABLE. The values will not themselves be copied. |
| 428 | 672 */ |
| 444 | 673 (char_table)) |
| 428 | 674 { |
| 440 | 675 Lisp_Char_Table *ct, *ctnew; |
| 428 | 676 Lisp_Object obj; |
| 677 int i; | |
| 678 | |
| 444 | 679 CHECK_CHAR_TABLE (char_table); |
| 680 ct = XCHAR_TABLE (char_table); | |
| 3879 | 681 assert(!ct->mirror_table_p); |
| 3017 | 682 ctnew = ALLOC_LCRECORD_TYPE (Lisp_Char_Table, &lrecord_char_table); |
| 428 | 683 ctnew->type = ct->type; |
| 793 | 684 ctnew->parent = ct->parent; |
| 685 ctnew->default_ = ct->default_; | |
| 3879 | 686 ctnew->mirror_table_p = 0; |
| 1296 | 687 obj = wrap_char_table (ctnew); |
| 428 | 688 |
| 689 for (i = 0; i < NUM_ASCII_CHARS; i++) | |
| 690 { | |
| 3025 | 691 Lisp_Object new_ = ct->ascii[i]; |
| 428 | 692 #ifdef MULE |
| 3025 | 693 assert (! (CHAR_TABLE_ENTRYP (new_))); |
| 428 | 694 #endif /* MULE */ |
| 3025 | 695 ctnew->ascii[i] = new_; |
| 428 | 696 } |
| 697 | |
| 698 #ifdef MULE | |
| 699 | |
| 700 for (i = 0; i < NUM_LEADING_BYTES; i++) | |
| 701 { | |
| 3025 | 702 Lisp_Object new_ = ct->level1[i]; |
| 703 if (CHAR_TABLE_ENTRYP (new_)) | |
| 704 ctnew->level1[i] = copy_char_table_entry (new_); | |
| 428 | 705 else |
| 3025 | 706 ctnew->level1[i] = new_; |
| 428 | 707 } |
| 708 | |
| 709 #endif /* MULE */ | |
| 710 | |
| 3881 | 711 if (!EQ (ct->mirror_table, Qnil)) |
| 1296 | 712 { |
| 3879 | 713 ctnew->mirror_table = Fmake_char_table (Qgeneric); |
| 714 set_char_table_default (ctnew->mirror_table, make_int (Sword)); | |
| 1296 | 715 XCHAR_TABLE (ctnew->mirror_table)->mirror_table = obj; |
| 3879 | 716 XCHAR_TABLE (ctnew->mirror_table)->mirror_table_p = 1; |
| 717 XCHAR_TABLE (ctnew->mirror_table)->dirty = 1; | |
| 1296 | 718 } |
| 428 | 719 else |
| 3879 | 720 ctnew->mirror_table = Qnil; |
| 721 | |
| 428 | 722 ctnew->next_table = Qnil; |
| 723 if (ctnew->type == CHAR_TABLE_TYPE_SYNTAX) | |
| 724 { | |
| 725 ctnew->next_table = Vall_syntax_tables; | |
| 726 Vall_syntax_tables = obj; | |
| 727 } | |
| 728 return obj; | |
| 729 } | |
| 730 | |
| 731 #ifdef MULE | |
| 732 | |
| 826 | 733 /* called from get_char_table(). */ |
| 428 | 734 Lisp_Object |
| 440 | 735 get_non_ascii_char_table_value (Lisp_Char_Table *ct, int leading_byte, |
| 867 | 736 Ichar c) |
| 428 | 737 { |
| 738 Lisp_Object val; | |
| 826 | 739 Lisp_Object charset = charset_by_leading_byte (leading_byte); |
| 428 | 740 int byte1, byte2; |
| 741 | |
| 867 | 742 BREAKUP_ICHAR_1_UNSAFE (c, charset, byte1, byte2); |
| 428 | 743 val = ct->level1[leading_byte - MIN_LEADING_BYTE]; |
| 744 if (CHAR_TABLE_ENTRYP (val)) | |
| 745 { | |
| 440 | 746 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val); |
| 428 | 747 val = cte->level2[byte1 - 32]; |
| 748 if (CHAR_TABLE_ENTRYP (val)) | |
| 749 { | |
| 750 cte = XCHAR_TABLE_ENTRY (val); | |
| 751 assert (byte2 >= 32); | |
| 752 val = cte->level2[byte2 - 32]; | |
| 753 assert (!CHAR_TABLE_ENTRYP (val)); | |
| 754 } | |
| 755 } | |
| 756 | |
| 757 return val; | |
| 758 } | |
| 759 | |
| 760 #endif /* MULE */ | |
| 761 | |
| 826 | 762 DEFUN ("char-table-default", Fchar_table_default, 1, 1, 0, /* |
| 763 Return the default value for CHAR-TABLE. When an entry for a character | |
| 764 does not exist, the default is returned. | |
| 765 */ | |
| 766 (char_table)) | |
| 428 | 767 { |
| 826 | 768 CHECK_CHAR_TABLE (char_table); |
| 769 return XCHAR_TABLE (char_table)->default_; | |
| 428 | 770 } |
| 771 | |
| 826 | 772 DEFUN ("set-char-table-default", Fset_char_table_default, 2, 2, 0, /* |
| 773 Set the default value for CHAR-TABLE to DEFAULT. | |
| 774 Currently, the default value for syntax tables cannot be changed. | |
| 775 (This policy might change in the future.) | |
| 776 */ | |
| 777 (char_table, default_)) | |
| 778 { | |
| 779 CHECK_CHAR_TABLE (char_table); | |
| 780 if (XCHAR_TABLE_TYPE (char_table) == CHAR_TABLE_TYPE_SYNTAX) | |
| 781 invalid_change ("Can't change default for syntax tables", char_table); | |
| 782 check_valid_char_table_value (default_, XCHAR_TABLE_TYPE (char_table), | |
| 783 ERROR_ME); | |
| 784 set_char_table_default (char_table, default_); | |
| 785 return Qnil; | |
| 786 } | |
| 428 | 787 |
| 788 DEFUN ("get-char-table", Fget_char_table, 2, 2, 0, /* | |
| 444 | 789 Find value for CHARACTER in CHAR-TABLE. |
| 428 | 790 */ |
| 444 | 791 (character, char_table)) |
| 428 | 792 { |
| 444 | 793 CHECK_CHAR_TABLE (char_table); |
| 794 CHECK_CHAR_COERCE_INT (character); | |
| 428 | 795 |
| 826 | 796 return get_char_table (XCHAR (character), char_table); |
| 797 } | |
| 798 | |
| 799 static int | |
| 2286 | 800 copy_mapper (struct chartab_range *range, Lisp_Object UNUSED (table), |
| 826 | 801 Lisp_Object val, void *arg) |
| 802 { | |
| 5013 | 803 put_char_table (GET_LISP_FROM_VOID (arg), range, val); |
| 826 | 804 return 0; |
| 805 } | |
| 806 | |
| 807 void | |
| 808 copy_char_table_range (Lisp_Object from, Lisp_Object to, | |
| 809 struct chartab_range *range) | |
| 810 { | |
| 5013 | 811 map_char_table (from, range, copy_mapper, STORE_LISP_IN_VOID (to)); |
| 826 | 812 } |
| 813 | |
| 1296 | 814 static Lisp_Object |
| 815 get_range_char_table_1 (struct chartab_range *range, Lisp_Object table, | |
| 816 Lisp_Object multi) | |
| 826 | 817 { |
| 818 Lisp_Char_Table *ct = XCHAR_TABLE (table); | |
| 819 Lisp_Object retval = Qnil; | |
| 820 | |
| 821 switch (range->type) | |
| 822 { | |
| 823 case CHARTAB_RANGE_CHAR: | |
| 824 return get_char_table (range->ch, table); | |
| 825 | |
| 826 case CHARTAB_RANGE_ALL: | |
| 827 { | |
| 828 int i; | |
| 829 retval = ct->ascii[0]; | |
| 830 | |
| 831 for (i = 1; i < NUM_ASCII_CHARS; i++) | |
| 832 if (!EQ (retval, ct->ascii[i])) | |
| 833 return multi; | |
| 834 | |
| 835 #ifdef MULE | |
| 836 for (i = MIN_LEADING_BYTE; i < MIN_LEADING_BYTE + NUM_LEADING_BYTES; | |
| 837 i++) | |
| 838 { | |
| 839 if (!CHARSETP (charset_by_leading_byte (i)) | |
| 840 || i == LEADING_BYTE_ASCII | |
| 841 || i == LEADING_BYTE_CONTROL_1) | |
| 842 continue; | |
| 843 if (!EQ (retval, ct->level1[i - MIN_LEADING_BYTE])) | |
| 844 return multi; | |
| 845 } | |
| 846 #endif /* MULE */ | |
| 847 | |
| 848 break; | |
| 849 } | |
| 850 | |
| 851 #ifdef MULE | |
| 852 case CHARTAB_RANGE_CHARSET: | |
| 853 if (EQ (range->charset, Vcharset_ascii)) | |
| 854 { | |
| 855 int i; | |
| 856 retval = ct->ascii[0]; | |
| 857 | |
| 858 for (i = 1; i < 128; i++) | |
| 859 if (!EQ (retval, ct->ascii[i])) | |
| 860 return multi; | |
| 861 break; | |
| 862 } | |
| 863 | |
| 864 if (EQ (range->charset, Vcharset_control_1)) | |
| 865 { | |
| 866 int i; | |
| 867 retval = ct->ascii[128]; | |
| 868 | |
| 869 for (i = 129; i < 160; i++) | |
| 870 if (!EQ (retval, ct->ascii[i])) | |
| 871 return multi; | |
| 872 break; | |
| 873 } | |
| 874 | |
| 875 { | |
| 876 retval = ct->level1[XCHARSET_LEADING_BYTE (range->charset) - | |
| 877 MIN_LEADING_BYTE]; | |
| 878 if (CHAR_TABLE_ENTRYP (retval)) | |
| 879 return multi; | |
| 880 break; | |
| 881 } | |
| 882 | |
| 883 case CHARTAB_RANGE_ROW: | |
| 884 { | |
| 885 retval = ct->level1[XCHARSET_LEADING_BYTE (range->charset) - | |
| 886 MIN_LEADING_BYTE]; | |
| 887 if (!CHAR_TABLE_ENTRYP (retval)) | |
| 888 break; | |
| 889 retval = XCHAR_TABLE_ENTRY (retval)->level2[range->row - 32]; | |
| 890 if (CHAR_TABLE_ENTRYP (retval)) | |
| 891 return multi; | |
| 892 break; | |
| 893 } | |
| 894 #endif /* not MULE */ | |
| 895 | |
| 896 default: | |
| 2500 | 897 ABORT (); |
| 826 | 898 } |
| 899 | |
| 900 if (UNBOUNDP (retval)) | |
| 901 return ct->default_; | |
| 902 return retval; | |
| 428 | 903 } |
| 904 | |
| 1296 | 905 Lisp_Object |
| 906 get_range_char_table (struct chartab_range *range, Lisp_Object table, | |
| 907 Lisp_Object multi) | |
| 908 { | |
| 909 if (range->type == CHARTAB_RANGE_CHAR) | |
| 910 return get_char_table (range->ch, table); | |
| 911 else | |
| 912 return get_range_char_table_1 (range, table, multi); | |
| 913 } | |
| 914 | |
| 915 #ifdef ERROR_CHECK_TYPES | |
| 916 | |
| 917 /* Only exists so as not to trip an assert in get_char_table(). */ | |
| 918 Lisp_Object | |
| 919 updating_mirror_get_range_char_table (struct chartab_range *range, | |
| 920 Lisp_Object table, | |
| 921 Lisp_Object multi) | |
| 922 { | |
| 923 if (range->type == CHARTAB_RANGE_CHAR) | |
| 924 return get_char_table_1 (range->ch, table); | |
| 925 else | |
| 926 return get_range_char_table_1 (range, table, multi); | |
| 927 } | |
| 928 | |
| 929 #endif /* ERROR_CHECK_TYPES */ | |
| 930 | |
| 428 | 931 DEFUN ("get-range-char-table", Fget_range_char_table, 2, 3, 0, /* |
| 2714 | 932 Find value for RANGE in CHAR-TABLE. |
| 428 | 933 If there is more than one value, return MULTI (defaults to nil). |
| 2714 | 934 |
| 935 Valid values for RANGE are single characters, charsets, a row in a | |
| 936 two-octet charset, and all characters. See `put-char-table'. | |
| 428 | 937 */ |
| 444 | 938 (range, char_table, multi)) |
| 428 | 939 { |
| 940 struct chartab_range rainj; | |
| 941 | |
| 942 if (CHAR_OR_CHAR_INTP (range)) | |
| 444 | 943 return Fget_char_table (range, char_table); |
| 944 CHECK_CHAR_TABLE (char_table); | |
| 428 | 945 |
| 946 decode_char_table_range (range, &rainj); | |
| 826 | 947 return get_range_char_table (&rainj, char_table, multi); |
| 428 | 948 } |
| 826 | 949 |
| 428 | 950 static int |
| 951 check_valid_char_table_value (Lisp_Object value, enum char_table_type type, | |
| 578 | 952 Error_Behavior errb) |
| 428 | 953 { |
| 954 switch (type) | |
| 955 { | |
| 956 case CHAR_TABLE_TYPE_SYNTAX: | |
| 957 if (!ERRB_EQ (errb, ERROR_ME)) | |
| 958 return INTP (value) || (CONSP (value) && INTP (XCAR (value)) | |
| 959 && CHAR_OR_CHAR_INTP (XCDR (value))); | |
| 960 if (CONSP (value)) | |
| 961 { | |
| 962 Lisp_Object cdr = XCDR (value); | |
| 963 CHECK_INT (XCAR (value)); | |
| 964 CHECK_CHAR_COERCE_INT (cdr); | |
| 965 } | |
| 966 else | |
| 967 CHECK_INT (value); | |
| 968 break; | |
| 969 | |
| 970 #ifdef MULE | |
| 971 case CHAR_TABLE_TYPE_CATEGORY: | |
| 972 if (!ERRB_EQ (errb, ERROR_ME)) | |
| 973 return CATEGORY_TABLE_VALUEP (value); | |
| 974 CHECK_CATEGORY_TABLE_VALUE (value); | |
| 975 break; | |
| 976 #endif /* MULE */ | |
| 977 | |
| 978 case CHAR_TABLE_TYPE_GENERIC: | |
| 979 return 1; | |
| 980 | |
| 981 case CHAR_TABLE_TYPE_DISPLAY: | |
| 982 /* #### fix this */ | |
| 563 | 983 maybe_signal_error (Qunimplemented, |
| 984 "Display char tables not yet implemented", | |
| 985 value, Qchar_table, errb); | |
| 428 | 986 return 0; |
| 987 | |
| 988 case CHAR_TABLE_TYPE_CHAR: | |
| 989 if (!ERRB_EQ (errb, ERROR_ME)) | |
| 990 return CHAR_OR_CHAR_INTP (value); | |
| 991 CHECK_CHAR_COERCE_INT (value); | |
| 992 break; | |
| 993 | |
| 994 default: | |
| 2500 | 995 ABORT (); |
| 428 | 996 } |
| 997 | |
| 801 | 998 return 0; /* not (usually) reached */ |
| 428 | 999 } |
| 1000 | |
| 1001 static Lisp_Object | |
| 1002 canonicalize_char_table_value (Lisp_Object value, enum char_table_type type) | |
| 1003 { | |
| 1004 switch (type) | |
| 1005 { | |
| 1006 case CHAR_TABLE_TYPE_SYNTAX: | |
| 1007 if (CONSP (value)) | |
| 1008 { | |
| 1009 Lisp_Object car = XCAR (value); | |
| 1010 Lisp_Object cdr = XCDR (value); | |
| 1011 CHECK_CHAR_COERCE_INT (cdr); | |
| 1012 return Fcons (car, cdr); | |
| 1013 } | |
| 1014 break; | |
| 1015 case CHAR_TABLE_TYPE_CHAR: | |
| 1016 CHECK_CHAR_COERCE_INT (value); | |
| 1017 break; | |
| 1018 default: | |
| 1019 break; | |
| 1020 } | |
| 1021 return value; | |
| 1022 } | |
| 1023 | |
| 1024 DEFUN ("valid-char-table-value-p", Fvalid_char_table_value_p, 2, 2, 0, /* | |
| 1025 Return non-nil if VALUE is a valid value for CHAR-TABLE-TYPE. | |
| 1026 */ | |
| 1027 (value, char_table_type)) | |
| 1028 { | |
| 1029 enum char_table_type type = symbol_to_char_table_type (char_table_type); | |
| 1030 | |
| 1031 return check_valid_char_table_value (value, type, ERROR_ME_NOT) ? Qt : Qnil; | |
| 1032 } | |
| 1033 | |
| 1034 DEFUN ("check-valid-char-table-value", Fcheck_valid_char_table_value, 2, 2, 0, /* | |
| 1035 Signal an error if VALUE is not a valid value for CHAR-TABLE-TYPE. | |
| 1036 */ | |
| 1037 (value, char_table_type)) | |
| 1038 { | |
| 1039 enum char_table_type type = symbol_to_char_table_type (char_table_type); | |
| 1040 | |
| 1041 check_valid_char_table_value (value, type, ERROR_ME); | |
| 1042 return Qnil; | |
| 1043 } | |
| 1044 | |
| 826 | 1045 /* Assign VAL to all characters in RANGE in char table TABLE. */ |
| 428 | 1046 |
| 1047 void | |
| 826 | 1048 put_char_table (Lisp_Object table, struct chartab_range *range, |
| 428 | 1049 Lisp_Object val) |
| 1050 { | |
| 826 | 1051 Lisp_Char_Table *ct = XCHAR_TABLE (table); |
| 1052 | |
| 428 | 1053 switch (range->type) |
| 1054 { | |
| 1055 case CHARTAB_RANGE_ALL: | |
| 1056 fill_char_table (ct, val); | |
| 1296 | 1057 return; /* fill_char_table() recorded the table as dirty. */ |
| 428 | 1058 |
| 1059 #ifdef MULE | |
| 1060 case CHARTAB_RANGE_CHARSET: | |
| 1061 if (EQ (range->charset, Vcharset_ascii)) | |
| 1062 { | |
| 1063 int i; | |
| 1064 for (i = 0; i < 128; i++) | |
| 1065 ct->ascii[i] = val; | |
| 1066 } | |
| 1067 else if (EQ (range->charset, Vcharset_control_1)) | |
| 1068 { | |
| 1069 int i; | |
| 1070 for (i = 128; i < 160; i++) | |
| 1071 ct->ascii[i] = val; | |
| 1072 } | |
| 1073 else | |
| 1074 { | |
| 1075 int lb = XCHARSET_LEADING_BYTE (range->charset) - MIN_LEADING_BYTE; | |
| 1330 | 1076 if (CHAR_TABLE_ENTRYP (ct->level1[lb]) && |
| 1077 !OBJECT_DUMPED_P (ct->level1[lb])) | |
| 3017 | 1078 FREE_LCRECORD (ct->level1[lb]); |
| 428 | 1079 ct->level1[lb] = val; |
| 1080 } | |
| 1081 break; | |
| 1082 | |
| 1083 case CHARTAB_RANGE_ROW: | |
| 1084 { | |
| 440 | 1085 Lisp_Char_Table_Entry *cte; |
| 428 | 1086 int lb = XCHARSET_LEADING_BYTE (range->charset) - MIN_LEADING_BYTE; |
| 1087 /* make sure that there is a separate entry for the row. */ | |
| 1088 if (!CHAR_TABLE_ENTRYP (ct->level1[lb])) | |
| 1089 ct->level1[lb] = make_char_table_entry (ct->level1[lb]); | |
| 1090 cte = XCHAR_TABLE_ENTRY (ct->level1[lb]); | |
| 1091 cte->level2[range->row - 32] = val; | |
| 1092 } | |
| 1093 break; | |
| 1094 #endif /* MULE */ | |
| 1095 | |
| 1096 case CHARTAB_RANGE_CHAR: | |
| 1097 #ifdef MULE | |
| 1098 { | |
| 1099 Lisp_Object charset; | |
| 1100 int byte1, byte2; | |
| 1101 | |
| 867 | 1102 BREAKUP_ICHAR (range->ch, charset, byte1, byte2); |
| 428 | 1103 if (EQ (charset, Vcharset_ascii)) |
| 1104 ct->ascii[byte1] = val; | |
| 1105 else if (EQ (charset, Vcharset_control_1)) | |
| 1106 ct->ascii[byte1 + 128] = val; | |
| 1107 else | |
| 1108 { | |
| 440 | 1109 Lisp_Char_Table_Entry *cte; |
| 428 | 1110 int lb = XCHARSET_LEADING_BYTE (charset) - MIN_LEADING_BYTE; |
| 1111 /* make sure that there is a separate entry for the row. */ | |
| 1112 if (!CHAR_TABLE_ENTRYP (ct->level1[lb])) | |
| 1113 ct->level1[lb] = make_char_table_entry (ct->level1[lb]); | |
| 1114 cte = XCHAR_TABLE_ENTRY (ct->level1[lb]); | |
| 1115 /* now CTE is a char table entry for the charset; | |
| 1116 each entry is for a single row (or character of | |
| 1117 a one-octet charset). */ | |
| 1118 if (XCHARSET_DIMENSION (charset) == 1) | |
| 1119 cte->level2[byte1 - 32] = val; | |
| 1120 else | |
| 1121 { | |
| 1122 /* assigning to one character in a two-octet charset. */ | |
| 1123 /* make sure that the charset row contains a separate | |
| 1124 entry for each character. */ | |
| 1125 if (!CHAR_TABLE_ENTRYP (cte->level2[byte1 - 32])) | |
| 1126 cte->level2[byte1 - 32] = | |
| 1127 make_char_table_entry (cte->level2[byte1 - 32]); | |
| 1128 cte = XCHAR_TABLE_ENTRY (cte->level2[byte1 - 32]); | |
| 1129 cte->level2[byte2 - 32] = val; | |
| 1130 } | |
| 1131 } | |
| 1132 } | |
| 1133 #else /* not MULE */ | |
| 1134 ct->ascii[(unsigned char) (range->ch)] = val; | |
| 1135 break; | |
| 1136 #endif /* not MULE */ | |
| 1137 } | |
| 1138 | |
| 1139 if (ct->type == CHAR_TABLE_TYPE_SYNTAX) | |
| 1296 | 1140 set_char_table_dirty (wrap_char_table (ct)); |
| 428 | 1141 } |
| 1142 | |
| 1143 DEFUN ("put-char-table", Fput_char_table, 3, 3, 0, /* | |
| 444 | 1144 Set the value for chars in RANGE to be VALUE in CHAR-TABLE. |
| 428 | 1145 |
| 1146 RANGE specifies one or more characters to be affected and should be | |
| 1147 one of the following: | |
| 1148 | |
| 1149 -- t (all characters are affected) | |
| 1150 -- A charset (only allowed when Mule support is present) | |
| 2714 | 1151 -- A vector of two elements: a two-octet charset and a row number; the row |
| 1152 must be an integer, not a character (only allowed when Mule support is | |
| 1153 present) | |
| 428 | 1154 -- A single character |
| 1155 | |
| 444 | 1156 VALUE must be a value appropriate for the type of CHAR-TABLE. |
| 800 | 1157 See `make-char-table'. |
| 428 | 1158 */ |
| 444 | 1159 (range, value, char_table)) |
| 428 | 1160 { |
| 440 | 1161 Lisp_Char_Table *ct; |
| 428 | 1162 struct chartab_range rainj; |
| 1163 | |
| 444 | 1164 CHECK_CHAR_TABLE (char_table); |
| 1165 ct = XCHAR_TABLE (char_table); | |
| 1166 check_valid_char_table_value (value, ct->type, ERROR_ME); | |
| 428 | 1167 decode_char_table_range (range, &rainj); |
| 444 | 1168 value = canonicalize_char_table_value (value, ct->type); |
| 826 | 1169 put_char_table (char_table, &rainj, value); |
| 1170 return Qnil; | |
| 1171 } | |
| 1172 | |
| 1173 DEFUN ("remove-char-table", Fremove_char_table, 2, 2, 0, /* | |
| 1174 Remove any value from chars in RANGE in CHAR-TABLE. | |
| 1175 | |
| 1176 RANGE specifies one or more characters to be affected and should be | |
| 1177 one of the following: | |
| 1178 | |
| 1179 -- t (all characters are affected) | |
| 1180 -- A charset (only allowed when Mule support is present) | |
| 1181 -- A vector of two elements: a two-octet charset and a row number | |
| 1182 (only allowed when Mule support is present) | |
| 1183 -- A single character | |
| 1184 | |
| 2726 | 1185 With all values removed, the default value will be returned by |
| 1186 `get-char-table' and `get-range-char-table'. | |
| 826 | 1187 */ |
| 1188 (range, char_table)) | |
| 1189 { | |
| 1190 struct chartab_range rainj; | |
| 1191 | |
| 1192 CHECK_CHAR_TABLE (char_table); | |
| 1193 decode_char_table_range (range, &rainj); | |
| 1194 put_char_table (char_table, &rainj, Qunbound); | |
| 428 | 1195 return Qnil; |
| 1196 } | |
| 1197 | |
| 1198 /* Map FN over the ASCII chars in CT. */ | |
| 1199 | |
| 1200 static int | |
| 826 | 1201 map_over_charset_ascii_1 (Lisp_Char_Table *ct, |
| 1202 int start, int stop, | |
| 1203 int (*fn) (struct chartab_range *range, | |
| 1204 Lisp_Object table, Lisp_Object val, | |
| 1205 void *arg), | |
| 1206 void *arg) | |
| 1207 { | |
| 1208 struct chartab_range rainj; | |
| 1209 int i, retval; | |
| 1210 | |
| 1211 rainj.type = CHARTAB_RANGE_CHAR; | |
| 1212 | |
| 1213 for (i = start, retval = 0; i <= stop && retval == 0; i++) | |
| 1214 { | |
| 867 | 1215 rainj.ch = (Ichar) i; |
| 826 | 1216 if (!UNBOUNDP (ct->ascii[i])) |
| 1217 retval = (fn) (&rainj, wrap_char_table (ct), ct->ascii[i], arg); | |
| 1218 } | |
| 1219 | |
| 1220 return retval; | |
| 1221 } | |
| 1222 | |
| 1223 | |
| 1224 /* Map FN over the ASCII chars in CT. */ | |
| 1225 | |
| 1226 static int | |
| 440 | 1227 map_over_charset_ascii (Lisp_Char_Table *ct, |
| 428 | 1228 int (*fn) (struct chartab_range *range, |
| 826 | 1229 Lisp_Object table, Lisp_Object val, |
| 1230 void *arg), | |
| 428 | 1231 void *arg) |
| 1232 { | |
| 826 | 1233 return map_over_charset_ascii_1 (ct, 0, |
| 428 | 1234 #ifdef MULE |
| 826 | 1235 127, |
| 428 | 1236 #else |
| 826 | 1237 255, |
| 428 | 1238 #endif |
| 826 | 1239 fn, arg); |
| 428 | 1240 } |
| 1241 | |
| 1242 #ifdef MULE | |
| 1243 | |
| 1244 /* Map FN over the Control-1 chars in CT. */ | |
| 1245 | |
| 1246 static int | |
| 440 | 1247 map_over_charset_control_1 (Lisp_Char_Table *ct, |
| 428 | 1248 int (*fn) (struct chartab_range *range, |
| 826 | 1249 Lisp_Object table, Lisp_Object val, |
| 1250 void *arg), | |
| 428 | 1251 void *arg) |
| 1252 { | |
| 826 | 1253 return map_over_charset_ascii_1 (ct, 128, 159, fn, arg); |
| 428 | 1254 } |
| 1255 | |
| 1256 /* Map FN over the row ROW of two-byte charset CHARSET. | |
| 1257 There must be a separate value for that row in the char table. | |
| 1258 CTE specifies the char table entry for CHARSET. */ | |
| 1259 | |
| 1260 static int | |
| 826 | 1261 map_over_charset_row (Lisp_Char_Table *ct, |
| 1262 Lisp_Char_Table_Entry *cte, | |
| 428 | 1263 Lisp_Object charset, int row, |
| 1264 int (*fn) (struct chartab_range *range, | |
| 826 | 1265 Lisp_Object table, Lisp_Object val, |
| 1266 void *arg), | |
| 428 | 1267 void *arg) |
| 1268 { | |
| 1269 Lisp_Object val = cte->level2[row - 32]; | |
| 1270 | |
| 826 | 1271 if (UNBOUNDP (val)) |
| 1272 return 0; | |
| 1273 else if (!CHAR_TABLE_ENTRYP (val)) | |
| 428 | 1274 { |
| 1275 struct chartab_range rainj; | |
| 826 | 1276 |
| 428 | 1277 rainj.type = CHARTAB_RANGE_ROW; |
| 1278 rainj.charset = charset; | |
| 1279 rainj.row = row; | |
| 826 | 1280 return (fn) (&rainj, wrap_char_table (ct), val, arg); |
| 428 | 1281 } |
| 1282 else | |
| 1283 { | |
| 1284 struct chartab_range rainj; | |
| 1285 int i, retval; | |
| 826 | 1286 int start, stop; |
| 1287 | |
| 1288 get_charset_limits (charset, &start, &stop); | |
| 428 | 1289 |
| 1290 cte = XCHAR_TABLE_ENTRY (val); | |
| 1291 | |
| 1292 rainj.type = CHARTAB_RANGE_CHAR; | |
| 1293 | |
| 826 | 1294 for (i = start, retval = 0; i <= stop && retval == 0; i++) |
| 428 | 1295 { |
| 867 | 1296 rainj.ch = make_ichar (charset, row, i); |
| 826 | 1297 if (!UNBOUNDP (cte->level2[i - 32])) |
| 1298 retval = (fn) (&rainj, wrap_char_table (ct), cte->level2[i - 32], | |
| 1299 arg); | |
| 428 | 1300 } |
| 1301 return retval; | |
| 1302 } | |
| 1303 } | |
| 1304 | |
| 1305 | |
| 1306 static int | |
| 440 | 1307 map_over_other_charset (Lisp_Char_Table *ct, int lb, |
| 428 | 1308 int (*fn) (struct chartab_range *range, |
| 826 | 1309 Lisp_Object table, Lisp_Object val, |
| 1310 void *arg), | |
| 428 | 1311 void *arg) |
| 1312 { | |
| 1313 Lisp_Object val = ct->level1[lb - MIN_LEADING_BYTE]; | |
| 826 | 1314 Lisp_Object charset = charset_by_leading_byte (lb); |
| 428 | 1315 |
| 1316 if (!CHARSETP (charset) | |
| 1317 || lb == LEADING_BYTE_ASCII | |
| 1318 || lb == LEADING_BYTE_CONTROL_1) | |
| 1319 return 0; | |
| 1320 | |
| 826 | 1321 if (UNBOUNDP (val)) |
| 1322 return 0; | |
| 428 | 1323 if (!CHAR_TABLE_ENTRYP (val)) |
| 1324 { | |
| 1325 struct chartab_range rainj; | |
| 1326 | |
| 1327 rainj.type = CHARTAB_RANGE_CHARSET; | |
| 1328 rainj.charset = charset; | |
| 826 | 1329 return (fn) (&rainj, wrap_char_table (ct), val, arg); |
| 428 | 1330 } |
| 1331 { | |
| 440 | 1332 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val); |
| 826 | 1333 int start, stop; |
| 428 | 1334 int i, retval; |
| 1335 | |
| 826 | 1336 get_charset_limits (charset, &start, &stop); |
| 428 | 1337 if (XCHARSET_DIMENSION (charset) == 1) |
| 1338 { | |
| 1339 struct chartab_range rainj; | |
| 1340 rainj.type = CHARTAB_RANGE_CHAR; | |
| 1341 | |
| 826 | 1342 for (i = start, retval = 0; i <= stop && retval == 0; i++) |
| 428 | 1343 { |
| 867 | 1344 rainj.ch = make_ichar (charset, i, 0); |
| 826 | 1345 if (!UNBOUNDP (cte->level2[i - 32])) |
| 1346 retval = (fn) (&rainj, wrap_char_table (ct), cte->level2[i - 32], | |
| 1347 arg); | |
| 428 | 1348 } |
| 1349 } | |
| 1350 else | |
| 1351 { | |
| 826 | 1352 for (i = start, retval = 0; i <= stop && retval == 0; i++) |
| 1353 retval = map_over_charset_row (ct, cte, charset, i, fn, arg); | |
| 428 | 1354 } |
| 1355 | |
| 1356 return retval; | |
| 1357 } | |
| 1358 } | |
| 1359 | |
| 1360 #endif /* MULE */ | |
| 1361 | |
| 1362 /* Map FN (with client data ARG) over range RANGE in char table CT. | |
| 1363 Mapping stops the first time FN returns non-zero, and that value | |
| 826 | 1364 becomes the return value of map_char_table(). |
| 1365 | |
| 1366 #### This mapping code is way ugly. The FSF version, in contrast, | |
| 1367 is short and sweet, and much more recursive. There should be some way | |
| 1368 of cleaning this up. */ | |
| 428 | 1369 |
| 1370 int | |
| 826 | 1371 map_char_table (Lisp_Object table, |
| 428 | 1372 struct chartab_range *range, |
| 1373 int (*fn) (struct chartab_range *range, | |
| 826 | 1374 Lisp_Object table, Lisp_Object val, void *arg), |
| 428 | 1375 void *arg) |
| 1376 { | |
| 826 | 1377 Lisp_Char_Table *ct = XCHAR_TABLE (table); |
| 428 | 1378 switch (range->type) |
| 1379 { | |
| 1380 case CHARTAB_RANGE_ALL: | |
| 1381 { | |
| 1382 int retval; | |
| 1383 | |
| 1384 retval = map_over_charset_ascii (ct, fn, arg); | |
| 1385 if (retval) | |
| 1386 return retval; | |
| 1387 #ifdef MULE | |
| 1388 retval = map_over_charset_control_1 (ct, fn, arg); | |
| 1389 if (retval) | |
| 1390 return retval; | |
| 1391 { | |
| 1392 int i; | |
| 1393 int start = MIN_LEADING_BYTE; | |
| 1394 int stop = start + NUM_LEADING_BYTES; | |
| 1395 | |
| 1396 for (i = start, retval = 0; i < stop && retval == 0; i++) | |
| 1397 { | |
| 771 | 1398 if (i != LEADING_BYTE_ASCII && i != LEADING_BYTE_CONTROL_1) |
| 1399 retval = map_over_other_charset (ct, i, fn, arg); | |
| 428 | 1400 } |
| 1401 } | |
| 1402 #endif /* MULE */ | |
| 1403 return retval; | |
| 1404 } | |
| 1405 | |
| 1406 #ifdef MULE | |
| 1407 case CHARTAB_RANGE_CHARSET: | |
| 1408 return map_over_other_charset (ct, | |
| 1409 XCHARSET_LEADING_BYTE (range->charset), | |
| 1410 fn, arg); | |
| 1411 | |
| 1412 case CHARTAB_RANGE_ROW: | |
| 1413 { | |
| 771 | 1414 Lisp_Object val = ct->level1[XCHARSET_LEADING_BYTE (range->charset) - |
| 1415 MIN_LEADING_BYTE]; | |
| 826 | 1416 |
| 1417 if (CHAR_TABLE_ENTRYP (val)) | |
| 1418 return map_over_charset_row (ct, XCHAR_TABLE_ENTRY (val), | |
| 1419 range->charset, range->row, fn, arg); | |
| 1420 else if (!UNBOUNDP (val)) | |
| 428 | 1421 { |
| 1422 struct chartab_range rainj; | |
| 1423 | |
| 1424 rainj.type = CHARTAB_RANGE_ROW; | |
| 1425 rainj.charset = range->charset; | |
| 1426 rainj.row = range->row; | |
| 826 | 1427 return (fn) (&rainj, table, val, arg); |
| 428 | 1428 } |
| 1429 else | |
| 826 | 1430 return 0; |
| 428 | 1431 } |
| 1432 #endif /* MULE */ | |
| 1433 | |
| 1434 case CHARTAB_RANGE_CHAR: | |
| 1435 { | |
| 867 | 1436 Ichar ch = range->ch; |
| 826 | 1437 Lisp_Object val = get_char_table (ch, table); |
| 428 | 1438 struct chartab_range rainj; |
| 1439 | |
| 826 | 1440 if (!UNBOUNDP (val)) |
| 1441 { | |
| 1442 rainj.type = CHARTAB_RANGE_CHAR; | |
| 1443 rainj.ch = ch; | |
| 1444 return (fn) (&rainj, table, val, arg); | |
| 1445 } | |
| 1446 else | |
| 1447 return 0; | |
| 428 | 1448 } |
| 1449 | |
| 1450 default: | |
| 2500 | 1451 ABORT (); |
| 428 | 1452 } |
| 1453 | |
| 1454 return 0; | |
| 1455 } | |
| 1456 | |
| 1457 struct slow_map_char_table_arg | |
| 1458 { | |
| 1459 Lisp_Object function; | |
| 1460 Lisp_Object retval; | |
| 1461 }; | |
| 1462 | |
| 1463 static int | |
| 1464 slow_map_char_table_fun (struct chartab_range *range, | |
| 2286 | 1465 Lisp_Object UNUSED (table), Lisp_Object val, |
| 1466 void *arg) | |
| 428 | 1467 { |
| 1468 struct slow_map_char_table_arg *closure = | |
| 1469 (struct slow_map_char_table_arg *) arg; | |
| 1470 | |
| 826 | 1471 closure->retval = call2 (closure->function, encode_char_table_range (range), |
| 1472 val); | |
| 428 | 1473 return !NILP (closure->retval); |
| 1474 } | |
| 1475 | |
| 1476 DEFUN ("map-char-table", Fmap_char_table, 2, 3, 0, /* | |
| 2726 | 1477 Map FUNCTION over CHAR-TABLE until it returns non-nil; return that value. |
| 1478 FUNCTION is called with two arguments, each key and entry in the table. | |
| 1479 | |
| 1480 RANGE specifies a subrange to map over. If omitted or t, it defaults to | |
| 1481 the entire table. | |
| 428 | 1482 |
| 2726 | 1483 Both RANGE and the keys passed to FUNCTION are in the same format as the |
| 1484 RANGE argument to `put-char-table'. N.B. This function does NOT map over | |
| 1485 all characters in RANGE, but over the subranges that have been assigned to. | |
| 1486 Thus this function is most suitable for searching a char-table, or for | |
| 1487 populating one char-table based on the contents of another. The current | |
| 1488 implementation does not coalesce ranges all of whose values are the same. | |
| 428 | 1489 */ |
| 444 | 1490 (function, char_table, range)) |
| 428 | 1491 { |
| 1492 struct slow_map_char_table_arg slarg; | |
| 1493 struct gcpro gcpro1, gcpro2; | |
| 1494 struct chartab_range rainj; | |
| 1495 | |
| 444 | 1496 CHECK_CHAR_TABLE (char_table); |
| 428 | 1497 if (NILP (range)) |
| 1498 range = Qt; | |
| 1499 decode_char_table_range (range, &rainj); | |
| 1500 slarg.function = function; | |
| 1501 slarg.retval = Qnil; | |
| 1502 GCPRO2 (slarg.function, slarg.retval); | |
| 826 | 1503 map_char_table (char_table, &rainj, slow_map_char_table_fun, &slarg); |
| 428 | 1504 UNGCPRO; |
| 1505 | |
| 1506 return slarg.retval; | |
| 1507 } | |
| 1508 | |
| 1509 | |
| 1510 | |
| 1511 /************************************************************************/ | |
| 1512 /* Char table read syntax */ | |
| 1513 /************************************************************************/ | |
| 1514 | |
| 1515 static int | |
| 2286 | 1516 chartab_type_validate (Lisp_Object UNUSED (keyword), Lisp_Object value, |
| 1517 Error_Behavior UNUSED (errb)) | |
| 428 | 1518 { |
| 1519 /* #### should deal with ERRB */ | |
| 1520 symbol_to_char_table_type (value); | |
| 1521 return 1; | |
| 1522 } | |
| 1523 | |
| 826 | 1524 /* #### Document the print/read format; esp. what's this cons element? */ |
| 1525 | |
| 428 | 1526 static int |
| 2286 | 1527 chartab_data_validate (Lisp_Object UNUSED (keyword), Lisp_Object value, |
| 1528 Error_Behavior UNUSED (errb)) | |
| 428 | 1529 { |
| 1530 /* #### should deal with ERRB */ | |
| 2367 | 1531 EXTERNAL_PROPERTY_LIST_LOOP_3 (range, data, value) |
| 428 | 1532 { |
| 1533 struct chartab_range dummy; | |
| 1534 | |
| 1535 if (CONSP (range)) | |
| 1536 { | |
| 1537 if (!CONSP (XCDR (range)) | |
| 1538 || !NILP (XCDR (XCDR (range)))) | |
| 563 | 1539 sferror ("Invalid range format", range); |
| 428 | 1540 decode_char_table_range (XCAR (range), &dummy); |
| 1541 decode_char_table_range (XCAR (XCDR (range)), &dummy); | |
| 1542 } | |
| 1543 else | |
| 1544 decode_char_table_range (range, &dummy); | |
| 1545 } | |
| 1546 | |
| 1547 return 1; | |
| 1548 } | |
| 1549 | |
| 1550 static Lisp_Object | |
| 1551 chartab_instantiate (Lisp_Object data) | |
| 1552 { | |
| 1553 Lisp_Object chartab; | |
| 1554 Lisp_Object type = Qgeneric; | |
| 1555 Lisp_Object dataval = Qnil; | |
| 1556 | |
| 1557 while (!NILP (data)) | |
| 1558 { | |
| 1559 Lisp_Object keyw = Fcar (data); | |
| 1560 Lisp_Object valw; | |
| 1561 | |
| 1562 data = Fcdr (data); | |
| 1563 valw = Fcar (data); | |
| 1564 data = Fcdr (data); | |
| 1565 if (EQ (keyw, Qtype)) | |
| 1566 type = valw; | |
| 1567 else if (EQ (keyw, Qdata)) | |
| 1568 dataval = valw; | |
| 1569 } | |
| 1570 | |
| 1571 chartab = Fmake_char_table (type); | |
| 1572 | |
| 1573 data = dataval; | |
| 1574 while (!NILP (data)) | |
| 1575 { | |
| 1576 Lisp_Object range = Fcar (data); | |
| 1577 Lisp_Object val = Fcar (Fcdr (data)); | |
| 1578 | |
| 1579 data = Fcdr (Fcdr (data)); | |
| 1580 if (CONSP (range)) | |
| 1581 { | |
| 1582 if (CHAR_OR_CHAR_INTP (XCAR (range))) | |
| 1583 { | |
| 867 | 1584 Ichar first = XCHAR_OR_CHAR_INT (Fcar (range)); |
| 1585 Ichar last = XCHAR_OR_CHAR_INT (Fcar (Fcdr (range))); | |
| 1586 Ichar i; | |
| 428 | 1587 |
| 1588 for (i = first; i <= last; i++) | |
| 1589 Fput_char_table (make_char (i), val, chartab); | |
| 1590 } | |
| 1591 else | |
| 2500 | 1592 ABORT (); |
| 428 | 1593 } |
| 1594 else | |
| 1595 Fput_char_table (range, val, chartab); | |
| 1596 } | |
| 1597 | |
| 1598 return chartab; | |
| 1599 } | |
| 1600 | |
| 1601 #ifdef MULE | |
| 1602 | |
| 1603 | |
| 1604 /************************************************************************/ | |
| 1605 /* Category Tables, specifically */ | |
| 1606 /************************************************************************/ | |
| 1607 | |
| 1608 DEFUN ("category-table-p", Fcategory_table_p, 1, 1, 0, /* | |
| 444 | 1609 Return t if OBJECT is a category table. |
| 428 | 1610 A category table is a type of char table used for keeping track of |
| 1611 categories. Categories are used for classifying characters for use | |
| 1612 in regexps -- you can refer to a category rather than having to use | |
| 1613 a complicated [] expression (and category lookups are significantly | |
| 1614 faster). | |
| 1615 | |
| 1616 There are 95 different categories available, one for each printable | |
| 1617 character (including space) in the ASCII charset. Each category | |
| 1618 is designated by one such character, called a "category designator". | |
| 1619 They are specified in a regexp using the syntax "\\cX", where X is | |
| 1620 a category designator. | |
| 1621 | |
| 1622 A category table specifies, for each character, the categories that | |
| 1623 the character is in. Note that a character can be in more than one | |
| 1624 category. More specifically, a category table maps from a character | |
| 1625 to either the value nil (meaning the character is in no categories) | |
| 1626 or a 95-element bit vector, specifying for each of the 95 categories | |
| 1627 whether the character is in that category. | |
| 1628 | |
| 1629 Special Lisp functions are provided that abstract this, so you do not | |
| 1630 have to directly manipulate bit vectors. | |
| 1631 */ | |
| 444 | 1632 (object)) |
| 428 | 1633 { |
| 444 | 1634 return (CHAR_TABLEP (object) && |
| 1635 XCHAR_TABLE_TYPE (object) == CHAR_TABLE_TYPE_CATEGORY) ? | |
| 428 | 1636 Qt : Qnil; |
| 1637 } | |
| 1638 | |
| 1639 static Lisp_Object | |
| 444 | 1640 check_category_table (Lisp_Object object, Lisp_Object default_) |
| 428 | 1641 { |
| 444 | 1642 if (NILP (object)) |
| 1643 object = default_; | |
| 1644 while (NILP (Fcategory_table_p (object))) | |
| 1645 object = wrong_type_argument (Qcategory_table_p, object); | |
| 1646 return object; | |
| 428 | 1647 } |
| 1648 | |
| 1649 int | |
| 867 | 1650 check_category_char (Ichar ch, Lisp_Object table, |
| 647 | 1651 int designator, int not_p) |
| 428 | 1652 { |
| 1653 REGISTER Lisp_Object temp; | |
| 1654 if (NILP (Fcategory_table_p (table))) | |
| 563 | 1655 wtaerror ("Expected category table", table); |
| 826 | 1656 temp = get_char_table (ch, table); |
| 428 | 1657 if (NILP (temp)) |
| 458 | 1658 return not_p; |
| 428 | 1659 |
| 1660 designator -= ' '; | |
| 458 | 1661 return bit_vector_bit (XBIT_VECTOR (temp), designator) ? !not_p : not_p; |
| 428 | 1662 } |
| 1663 | |
| 1664 DEFUN ("check-category-at", Fcheck_category_at, 2, 4, 0, /* | |
| 444 | 1665 Return t if category of the character at POSITION includes DESIGNATOR. |
| 1666 Optional third arg BUFFER specifies which buffer to use, and defaults | |
| 1667 to the current buffer. | |
| 1668 Optional fourth arg CATEGORY-TABLE specifies the category table to | |
| 1669 use, and defaults to BUFFER's category table. | |
| 428 | 1670 */ |
| 444 | 1671 (position, designator, buffer, category_table)) |
| 428 | 1672 { |
| 1673 Lisp_Object ctbl; | |
| 867 | 1674 Ichar ch; |
| 647 | 1675 int des; |
| 428 | 1676 struct buffer *buf = decode_buffer (buffer, 0); |
| 1677 | |
| 444 | 1678 CHECK_INT (position); |
| 428 | 1679 CHECK_CATEGORY_DESIGNATOR (designator); |
| 1680 des = XCHAR (designator); | |
| 788 | 1681 ctbl = check_category_table (category_table, buf->category_table); |
| 444 | 1682 ch = BUF_FETCH_CHAR (buf, XINT (position)); |
| 428 | 1683 return check_category_char (ch, ctbl, des, 0) ? Qt : Qnil; |
| 1684 } | |
| 1685 | |
| 1686 DEFUN ("char-in-category-p", Fchar_in_category_p, 2, 3, 0, /* | |
| 788 | 1687 Return non-nil if category of CHARACTER includes DESIGNATOR. |
| 444 | 1688 Optional third arg CATEGORY-TABLE specifies the category table to use, |
| 788 | 1689 and defaults to the current buffer's category table. |
| 428 | 1690 */ |
| 444 | 1691 (character, designator, category_table)) |
| 428 | 1692 { |
| 1693 Lisp_Object ctbl; | |
| 867 | 1694 Ichar ch; |
| 647 | 1695 int des; |
| 428 | 1696 |
| 1697 CHECK_CATEGORY_DESIGNATOR (designator); | |
| 1698 des = XCHAR (designator); | |
| 444 | 1699 CHECK_CHAR (character); |
| 1700 ch = XCHAR (character); | |
| 788 | 1701 ctbl = check_category_table (category_table, current_buffer->category_table); |
| 428 | 1702 return check_category_char (ch, ctbl, des, 0) ? Qt : Qnil; |
| 1703 } | |
| 1704 | |
| 1705 DEFUN ("category-table", Fcategory_table, 0, 1, 0, /* | |
| 444 | 1706 Return BUFFER's current category table. |
| 1707 BUFFER defaults to the current buffer. | |
| 428 | 1708 */ |
| 1709 (buffer)) | |
| 1710 { | |
| 1711 return decode_buffer (buffer, 0)->category_table; | |
| 1712 } | |
| 1713 | |
| 1714 DEFUN ("standard-category-table", Fstandard_category_table, 0, 0, 0, /* | |
| 1715 Return the standard category table. | |
| 1716 This is the one used for new buffers. | |
| 1717 */ | |
| 1718 ()) | |
| 1719 { | |
| 1720 return Vstandard_category_table; | |
| 1721 } | |
| 1722 | |
| 1723 DEFUN ("copy-category-table", Fcopy_category_table, 0, 1, 0, /* | |
| 444 | 1724 Return a new category table which is a copy of CATEGORY-TABLE. |
| 1725 CATEGORY-TABLE defaults to the standard category table. | |
| 428 | 1726 */ |
| 444 | 1727 (category_table)) |
| 428 | 1728 { |
| 1729 if (NILP (Vstandard_category_table)) | |
| 1730 return Fmake_char_table (Qcategory); | |
| 1731 | |
| 444 | 1732 category_table = |
| 1733 check_category_table (category_table, Vstandard_category_table); | |
| 1734 return Fcopy_char_table (category_table); | |
| 428 | 1735 } |
| 1736 | |
| 1737 DEFUN ("set-category-table", Fset_category_table, 1, 2, 0, /* | |
| 444 | 1738 Select CATEGORY-TABLE as the new category table for BUFFER. |
| 428 | 1739 BUFFER defaults to the current buffer if omitted. |
| 1740 */ | |
| 444 | 1741 (category_table, buffer)) |
| 428 | 1742 { |
| 1743 struct buffer *buf = decode_buffer (buffer, 0); | |
| 444 | 1744 category_table = check_category_table (category_table, Qnil); |
| 1745 buf->category_table = category_table; | |
| 428 | 1746 /* Indicate that this buffer now has a specified category table. */ |
| 1747 buf->local_var_flags |= XINT (buffer_local_flags.category_table); | |
| 444 | 1748 return category_table; |
| 428 | 1749 } |
| 1750 | |
| 1751 DEFUN ("category-designator-p", Fcategory_designator_p, 1, 1, 0, /* | |
| 444 | 1752 Return t if OBJECT is a category designator (a char in the range ' ' to '~'). |
| 428 | 1753 */ |
| 444 | 1754 (object)) |
| 428 | 1755 { |
| 444 | 1756 return CATEGORY_DESIGNATORP (object) ? Qt : Qnil; |
| 428 | 1757 } |
| 1758 | |
| 1759 DEFUN ("category-table-value-p", Fcategory_table_value_p, 1, 1, 0, /* | |
| 444 | 1760 Return t if OBJECT is a category table value. |
| 428 | 1761 Valid values are nil or a bit vector of size 95. |
| 1762 */ | |
| 444 | 1763 (object)) |
| 428 | 1764 { |
| 444 | 1765 return CATEGORY_TABLE_VALUEP (object) ? Qt : Qnil; |
| 428 | 1766 } |
| 1767 | |
| 1768 | |
| 1769 #define CATEGORYP(x) \ | |
| 1770 (CHARP (x) && XCHAR (x) >= 0x20 && XCHAR (x) <= 0x7E) | |
| 1771 | |
| 826 | 1772 #define CATEGORY_SET(c) get_char_table (c, current_buffer->category_table) |
| 428 | 1773 |
| 1774 /* Return 1 if CATEGORY_SET contains CATEGORY, else return 0. | |
| 1775 The faster version of `!NILP (Faref (category_set, category))'. */ | |
| 1776 #define CATEGORY_MEMBER(category, category_set) \ | |
| 1777 (bit_vector_bit(XBIT_VECTOR (category_set), category - 32)) | |
| 1778 | |
| 1779 /* Return 1 if there is a word boundary between two word-constituent | |
| 1780 characters C1 and C2 if they appear in this order, else return 0. | |
| 1781 Use the macro WORD_BOUNDARY_P instead of calling this function | |
| 1782 directly. */ | |
| 1783 | |
| 1784 int | |
| 867 | 1785 word_boundary_p (Ichar c1, Ichar c2) |
| 428 | 1786 { |
| 1787 Lisp_Object category_set1, category_set2; | |
| 1788 Lisp_Object tail; | |
| 1789 int default_result; | |
| 1790 | |
| 1791 #if 0 | |
| 1792 if (COMPOSITE_CHAR_P (c1)) | |
| 1793 c1 = cmpchar_component (c1, 0, 1); | |
| 1794 if (COMPOSITE_CHAR_P (c2)) | |
| 1795 c2 = cmpchar_component (c2, 0, 1); | |
| 1796 #endif | |
| 1797 | |
| 867 | 1798 if (EQ (ichar_charset (c1), ichar_charset (c2))) |
| 428 | 1799 { |
| 1800 tail = Vword_separating_categories; | |
| 1801 default_result = 0; | |
| 1802 } | |
| 1803 else | |
| 1804 { | |
| 1805 tail = Vword_combining_categories; | |
| 1806 default_result = 1; | |
| 1807 } | |
| 1808 | |
| 1809 category_set1 = CATEGORY_SET (c1); | |
| 1810 if (NILP (category_set1)) | |
| 1811 return default_result; | |
| 1812 category_set2 = CATEGORY_SET (c2); | |
| 1813 if (NILP (category_set2)) | |
| 1814 return default_result; | |
| 1815 | |
| 853 | 1816 for (; CONSP (tail); tail = XCDR (tail)) |
| 428 | 1817 { |
| 853 | 1818 Lisp_Object elt = XCAR (tail); |
| 428 | 1819 |
| 1820 if (CONSP (elt) | |
| 853 | 1821 && CATEGORYP (XCAR (elt)) |
| 1822 && CATEGORYP (XCDR (elt)) | |
| 1823 && CATEGORY_MEMBER (XCHAR (XCAR (elt)), category_set1) | |
| 1824 && CATEGORY_MEMBER (XCHAR (XCDR (elt)), category_set2)) | |
| 428 | 1825 return !default_result; |
| 1826 } | |
| 1827 return default_result; | |
| 1828 } | |
| 1829 #endif /* MULE */ | |
| 1830 | |
| 1831 | |
| 1832 void | |
| 1833 syms_of_chartab (void) | |
| 1834 { | |
| 442 | 1835 INIT_LRECORD_IMPLEMENTATION (char_table); |
| 1836 | |
| 428 | 1837 #ifdef MULE |
| 442 | 1838 INIT_LRECORD_IMPLEMENTATION (char_table_entry); |
| 1839 | |
| 563 | 1840 DEFSYMBOL (Qcategory_table_p); |
| 1841 DEFSYMBOL (Qcategory_designator_p); | |
| 1842 DEFSYMBOL (Qcategory_table_value_p); | |
| 428 | 1843 #endif /* MULE */ |
| 1844 | |
| 563 | 1845 DEFSYMBOL (Qchar_table); |
| 1846 DEFSYMBOL_MULTIWORD_PREDICATE (Qchar_tablep); | |
| 428 | 1847 |
| 1848 DEFSUBR (Fchar_table_p); | |
| 1849 DEFSUBR (Fchar_table_type_list); | |
| 1850 DEFSUBR (Fvalid_char_table_type_p); | |
| 1851 DEFSUBR (Fchar_table_type); | |
| 826 | 1852 DEFSUBR (Fchar_table_default); |
| 1853 DEFSUBR (Fset_char_table_default); | |
| 428 | 1854 DEFSUBR (Freset_char_table); |
| 1855 DEFSUBR (Fmake_char_table); | |
| 1856 DEFSUBR (Fcopy_char_table); | |
| 1857 DEFSUBR (Fget_char_table); | |
| 1858 DEFSUBR (Fget_range_char_table); | |
| 1859 DEFSUBR (Fvalid_char_table_value_p); | |
| 1860 DEFSUBR (Fcheck_valid_char_table_value); | |
| 1861 DEFSUBR (Fput_char_table); | |
| 826 | 1862 DEFSUBR (Fremove_char_table); |
| 428 | 1863 DEFSUBR (Fmap_char_table); |
| 1864 | |
| 1865 #ifdef MULE | |
| 1866 DEFSUBR (Fcategory_table_p); | |
| 1867 DEFSUBR (Fcategory_table); | |
| 1868 DEFSUBR (Fstandard_category_table); | |
| 1869 DEFSUBR (Fcopy_category_table); | |
| 1870 DEFSUBR (Fset_category_table); | |
| 1871 DEFSUBR (Fcheck_category_at); | |
| 1872 DEFSUBR (Fchar_in_category_p); | |
| 1873 DEFSUBR (Fcategory_designator_p); | |
| 1874 DEFSUBR (Fcategory_table_value_p); | |
| 1875 #endif /* MULE */ | |
| 1876 | |
| 1877 } | |
| 1878 | |
| 1879 void | |
| 1880 vars_of_chartab (void) | |
| 1881 { | |
| 1882 /* DO NOT staticpro this. It works just like Vweak_hash_tables. */ | |
| 1883 Vall_syntax_tables = Qnil; | |
| 452 | 1884 dump_add_weak_object_chain (&Vall_syntax_tables); |
| 428 | 1885 } |
| 1886 | |
| 1887 void | |
| 1888 structure_type_create_chartab (void) | |
| 1889 { | |
| 1890 struct structure_type *st; | |
| 1891 | |
| 1892 st = define_structure_type (Qchar_table, 0, chartab_instantiate); | |
| 1893 | |
| 1894 define_structure_type_keyword (st, Qtype, chartab_type_validate); | |
| 1895 define_structure_type_keyword (st, Qdata, chartab_data_validate); | |
| 1896 } | |
| 1897 | |
| 1898 void | |
| 1899 complex_vars_of_chartab (void) | |
| 1900 { | |
| 1901 #ifdef MULE | |
| 1902 /* Set this now, so first buffer creation can refer to it. */ | |
| 1903 /* Make it nil before calling copy-category-table | |
| 1904 so that copy-category-table will know not to try to copy from garbage */ | |
| 1905 Vstandard_category_table = Qnil; | |
| 1906 Vstandard_category_table = Fcopy_category_table (Qnil); | |
| 1907 staticpro (&Vstandard_category_table); | |
| 1908 | |
| 1909 DEFVAR_LISP ("word-combining-categories", &Vword_combining_categories /* | |
| 1910 List of pair (cons) of categories to determine word boundary. | |
| 1911 | |
| 1912 Emacs treats a sequence of word constituent characters as a single | |
| 1913 word (i.e. finds no word boundary between them) iff they belongs to | |
| 1914 the same charset. But, exceptions are allowed in the following cases. | |
| 1915 | |
| 444 | 1916 \(1) The case that characters are in different charsets is controlled |
| 428 | 1917 by the variable `word-combining-categories'. |
| 1918 | |
| 1919 Emacs finds no word boundary between characters of different charsets | |
| 1920 if they have categories matching some element of this list. | |
| 1921 | |
| 1922 More precisely, if an element of this list is a cons of category CAT1 | |
| 1923 and CAT2, and a multibyte character C1 which has CAT1 is followed by | |
| 1924 C2 which has CAT2, there's no word boundary between C1 and C2. | |
| 1925 | |
| 1926 For instance, to tell that ASCII characters and Latin-1 characters can | |
| 1927 form a single word, the element `(?l . ?l)' should be in this list | |
| 1928 because both characters have the category `l' (Latin characters). | |
| 1929 | |
| 444 | 1930 \(2) The case that character are in the same charset is controlled by |
| 428 | 1931 the variable `word-separating-categories'. |
| 1932 | |
| 1933 Emacs find a word boundary between characters of the same charset | |
| 1934 if they have categories matching some element of this list. | |
| 1935 | |
| 1936 More precisely, if an element of this list is a cons of category CAT1 | |
| 1937 and CAT2, and a multibyte character C1 which has CAT1 is followed by | |
| 1938 C2 which has CAT2, there's a word boundary between C1 and C2. | |
| 1939 | |
| 1940 For instance, to tell that there's a word boundary between Japanese | |
| 1941 Hiragana and Japanese Kanji (both are in the same charset), the | |
| 1942 element `(?H . ?C) should be in this list. | |
| 1943 */ ); | |
| 1944 | |
| 1945 Vword_combining_categories = Qnil; | |
| 1946 | |
| 1947 DEFVAR_LISP ("word-separating-categories", &Vword_separating_categories /* | |
| 1948 List of pair (cons) of categories to determine word boundary. | |
| 1949 See the documentation of the variable `word-combining-categories'. | |
| 1950 */ ); | |
| 1951 | |
| 1952 Vword_separating_categories = Qnil; | |
| 1953 #endif /* MULE */ | |
| 1954 } |