Mercurial > hg > xemacs-beta
annotate src/chartab.c @ 5720:1d6995b6986e
Add and use `font-lock-extend-region-functions'.
2013-02-20 Michael Sperber <mike@xemacs.org>
* font-lock.el (font-lock-beg)
(font-lock-extend-region-functions)
(font-lock-extend-region-multiline)
(font-lock-extend-region-wholelines)
(font-lock-default-fontify-region): Add and use
`font-lock-extend-region-functions' from GNU Emacs.
author | Mike Sperber <sperber@deinprogramm.de> |
---|---|
date | Wed, 20 Feb 2013 11:09:08 +0100 |
parents | 56144c8593a8 |
children | 3192994c49ca |
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 | |
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10 XEmacs is free software: you can redistribute it and/or modify it |
428 | 11 under the terms of the GNU General Public License as published by the |
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12 Free Software Foundation, either version 3 of the License, or (at your |
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13 option) any later version. |
428 | 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 | |
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21 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
428 | 22 |
23 /* Synched up with: Mule 2.3. Not synched with FSF. | |
24 | |
25 This file was written independently of the FSF implementation, | |
26 and is not compatible. */ | |
27 | |
28 /* Authorship: | |
29 | |
30 Ben Wing: wrote, for 19.13 (Mule). Some category table stuff | |
31 loosely based on the original Mule. | |
32 Jareth Hein: fixed a couple of bugs in the implementation, and | |
33 added regex support for categories with check_category_at | |
34 */ | |
35 | |
36 #include <config.h> | |
37 #include "lisp.h" | |
38 | |
39 #include "buffer.h" | |
40 #include "chartab.h" | |
41 #include "syntax.h" | |
42 | |
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43 Lisp_Object Qchar_tablep, Qchar_table; |
428 | 44 |
45 Lisp_Object Vall_syntax_tables; | |
46 | |
47 #ifdef MULE | |
48 Lisp_Object Qcategory_table_p; | |
49 Lisp_Object Qcategory_designator_p; | |
50 Lisp_Object Qcategory_table_value_p; | |
51 | |
52 Lisp_Object Vstandard_category_table; | |
53 | |
54 /* Variables to determine word boundary. */ | |
55 Lisp_Object Vword_combining_categories, Vword_separating_categories; | |
56 #endif /* MULE */ | |
57 | |
826 | 58 static int check_valid_char_table_value (Lisp_Object value, |
59 enum char_table_type type, | |
60 Error_Behavior errb); | |
61 | |
428 | 62 |
63 /* A char table maps from ranges of characters to values. | |
64 | |
65 Implementing a general data structure that maps from arbitrary | |
66 ranges of numbers to values is tricky to do efficiently. As it | |
67 happens, it should suffice (and is usually more convenient, anyway) | |
68 when dealing with characters to restrict the sorts of ranges that | |
69 can be assigned values, as follows: | |
70 | |
71 1) All characters. | |
72 2) All characters in a charset. | |
73 3) All characters in a particular row of a charset, where a "row" | |
74 means all characters with the same first byte. | |
75 4) A particular character in a charset. | |
76 | |
77 We use char tables to generalize the 256-element vectors now | |
78 littering the Emacs code. | |
79 | |
80 Possible uses (all should be converted at some point): | |
81 | |
82 1) category tables | |
83 2) syntax tables | |
84 3) display tables | |
85 4) case tables | |
86 5) keyboard-translate-table? | |
87 | |
88 We provide an | |
89 abstract type to generalize the Emacs vectors and Mule | |
90 vectors-of-vectors goo. | |
91 */ | |
92 | |
93 /************************************************************************/ | |
94 /* Char Table object */ | |
95 /************************************************************************/ | |
96 | |
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97 static int |
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98 print_preprocess_mapper (struct chartab_range * UNUSED (range), |
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99 Lisp_Object UNUSED (table), Lisp_Object val, |
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100 void *extra_arg) |
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101 { |
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102 print_preprocess (val, ((preprocess_info_t *) extra_arg)->table, |
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103 ((preprocess_info_t *) extra_arg)->count); |
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104 return 0; |
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105 } |
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106 |
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107 static void |
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108 char_table_print_preprocess (Lisp_Object object, Lisp_Object print_number_table, |
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109 Elemcount *seen_object_count) |
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110 { |
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111 struct chartab_range ctr = { CHARTAB_RANGE_ALL, 0, Qnil, 0 }; |
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112 preprocess_info_t preprocess_info = { print_number_table, seen_object_count }; |
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113 map_char_table (object, &ctr, print_preprocess_mapper, &preprocess_info); |
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114 } |
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115 |
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116 static void decode_char_table_range (Lisp_Object range, |
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117 struct chartab_range *outrange); |
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118 |
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119 static int |
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120 nsubst_structures_mapper (struct chartab_range * range, Lisp_Object table, |
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121 Lisp_Object value, void *extra_arg) |
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122 { |
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123 Lisp_Object number_table |
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124 = ((nsubst_structures_info_t *) extra_arg)->number_table; |
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125 Lisp_Object new_ = ((nsubst_structures_info_t *) extra_arg)->new_; |
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126 Lisp_Object old = ((nsubst_structures_info_t *) extra_arg)->old; |
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127 Boolint test_not_unboundp |
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128 = ((nsubst_structures_info_t *) extra_arg)->test_not_unboundp; |
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129 struct chartab_range changed = { range->type, range->ch, range->charset, |
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130 range->row }; |
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131 |
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132 switch (range->type) |
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133 { |
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134 case CHARTAB_RANGE_ALL: |
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135 { |
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136 if (EQ (old, Qt) == test_not_unboundp) |
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137 { |
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138 decode_char_table_range (new_, &changed); |
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139 |
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140 put_char_table (table, range, Qunbound); |
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141 put_char_table (table, &changed, value); |
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142 } |
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143 break; |
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144 } |
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145 #ifdef MULE |
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146 case CHARTAB_RANGE_CHARSET: |
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147 { |
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148 if (EQ (old, range->charset) == test_not_unboundp) |
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149 { |
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150 CHECK_CHARSET (new_); |
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151 changed.charset = new_; |
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152 |
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153 put_char_table (table, range, Qunbound); |
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154 put_char_table (table, &changed, value); |
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155 } |
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156 else assert (!HAS_OBJECT_METH_P (range->charset, |
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157 nsubst_structures_descend)); |
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158 break; |
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159 } |
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160 case CHARTAB_RANGE_ROW: |
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161 { |
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162 if (EQ (old, make_fixnum (range->row)) == test_not_unboundp) |
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163 { |
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164 CHECK_FIXNUM (new_); |
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165 changed.row = XFIXNUM (new_); |
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166 |
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167 put_char_table (table, range, Qunbound); |
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168 put_char_table (table, &changed, value); |
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169 } |
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170 break; |
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171 } |
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172 #endif |
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173 case CHARTAB_RANGE_CHAR: |
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174 { |
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175 if (EQ (old, make_char (range->ch)) == test_not_unboundp) |
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176 { |
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177 CHECK_CHAR (new_); |
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178 changed.ch = XCHAR (new_); |
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179 |
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180 put_char_table (table, range, Qunbound); |
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181 put_char_table (table, &changed, value); |
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182 } |
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183 break; |
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184 } |
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185 } |
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186 |
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187 if (EQ (old, value) == test_not_unboundp) |
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188 { |
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189 put_char_table (table, &changed, new_); |
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190 } |
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191 else if (LRECORDP (value) && |
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192 HAS_OBJECT_METH_P (value, nsubst_structures_descend)) |
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193 { |
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194 nsubst_structures_descend (new_, old, value, number_table, |
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195 test_not_unboundp); |
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196 } |
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197 |
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198 return 0; |
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199 } |
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200 |
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201 static void |
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202 char_table_nsubst_structures_descend (Lisp_Object new_, Lisp_Object old, |
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203 Lisp_Object object, |
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204 Lisp_Object number_table, |
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205 Boolint test_not_unboundp) |
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206 { |
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207 struct chartab_range ctr = { CHARTAB_RANGE_ALL, 0, Qnil, 0 }; |
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208 nsubst_structures_info_t nsubst_structures_info |
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209 = { number_table, new_, old, object, test_not_unboundp }; |
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210 |
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211 map_char_table (object, &ctr, nsubst_structures_mapper, |
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212 &nsubst_structures_info); |
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213 } |
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214 |
428 | 215 #ifdef MULE |
216 | |
217 static Lisp_Object | |
218 mark_char_table_entry (Lisp_Object obj) | |
219 { | |
440 | 220 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj); |
428 | 221 int i; |
222 | |
223 for (i = 0; i < 96; i++) | |
224 { | |
225 mark_object (cte->level2[i]); | |
226 } | |
227 return Qnil; | |
228 } | |
229 | |
230 static int | |
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231 char_table_entry_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, |
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232 int foldcase) |
428 | 233 { |
440 | 234 Lisp_Char_Table_Entry *cte1 = XCHAR_TABLE_ENTRY (obj1); |
235 Lisp_Char_Table_Entry *cte2 = XCHAR_TABLE_ENTRY (obj2); | |
428 | 236 int i; |
237 | |
238 for (i = 0; i < 96; i++) | |
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239 if (!internal_equal_0 (cte1->level2[i], cte2->level2[i], depth + 1, |
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240 foldcase)) |
428 | 241 return 0; |
242 | |
243 return 1; | |
244 } | |
245 | |
665 | 246 static Hashcode |
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247 char_table_entry_hash (Lisp_Object obj, int depth, Boolint equalp) |
428 | 248 { |
440 | 249 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj); |
428 | 250 |
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251 return internal_array_hash (cte->level2, 96, depth + 1, equalp); |
428 | 252 } |
253 | |
1204 | 254 static const struct memory_description char_table_entry_description[] = { |
440 | 255 { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table_Entry, level2), 96 }, |
428 | 256 { XD_END } |
257 }; | |
258 | |
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259 DEFINE_DUMPABLE_LISP_OBJECT ("char-table-entry", char_table_entry, |
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260 mark_char_table_entry, internal_object_printer, |
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261 0, char_table_entry_equal, |
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262 char_table_entry_hash, |
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263 char_table_entry_description, |
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264 Lisp_Char_Table_Entry); |
934 | 265 |
428 | 266 #endif /* MULE */ |
267 | |
268 static Lisp_Object | |
269 mark_char_table (Lisp_Object obj) | |
270 { | |
440 | 271 Lisp_Char_Table *ct = XCHAR_TABLE (obj); |
428 | 272 int i; |
273 | |
274 for (i = 0; i < NUM_ASCII_CHARS; i++) | |
275 mark_object (ct->ascii[i]); | |
276 #ifdef MULE | |
277 for (i = 0; i < NUM_LEADING_BYTES; i++) | |
278 mark_object (ct->level1[i]); | |
279 #endif | |
793 | 280 mark_object (ct->parent); |
281 mark_object (ct->default_); | |
428 | 282 return ct->mirror_table; |
283 } | |
284 | |
285 /* WARNING: All functions of this nature need to be written extremely | |
286 carefully to avoid crashes during GC. Cf. prune_specifiers() | |
287 and prune_weak_hash_tables(). */ | |
288 | |
289 void | |
290 prune_syntax_tables (void) | |
291 { | |
292 Lisp_Object rest, prev = Qnil; | |
293 | |
294 for (rest = Vall_syntax_tables; | |
295 !NILP (rest); | |
296 rest = XCHAR_TABLE (rest)->next_table) | |
297 { | |
298 if (! marked_p (rest)) | |
299 { | |
300 /* This table is garbage. Remove it from the list. */ | |
301 if (NILP (prev)) | |
302 Vall_syntax_tables = XCHAR_TABLE (rest)->next_table; | |
303 else | |
304 XCHAR_TABLE (prev)->next_table = | |
305 XCHAR_TABLE (rest)->next_table; | |
306 } | |
307 } | |
308 } | |
309 | |
310 static Lisp_Object | |
311 char_table_type_to_symbol (enum char_table_type type) | |
312 { | |
313 switch (type) | |
314 { | |
2500 | 315 default: ABORT(); |
428 | 316 case CHAR_TABLE_TYPE_GENERIC: return Qgeneric; |
317 case CHAR_TABLE_TYPE_SYNTAX: return Qsyntax; | |
318 case CHAR_TABLE_TYPE_DISPLAY: return Qdisplay; | |
319 case CHAR_TABLE_TYPE_CHAR: return Qchar; | |
320 #ifdef MULE | |
321 case CHAR_TABLE_TYPE_CATEGORY: return Qcategory; | |
322 #endif | |
323 } | |
324 } | |
325 | |
326 static enum char_table_type | |
327 symbol_to_char_table_type (Lisp_Object symbol) | |
328 { | |
329 CHECK_SYMBOL (symbol); | |
330 | |
331 if (EQ (symbol, Qgeneric)) return CHAR_TABLE_TYPE_GENERIC; | |
332 if (EQ (symbol, Qsyntax)) return CHAR_TABLE_TYPE_SYNTAX; | |
333 if (EQ (symbol, Qdisplay)) return CHAR_TABLE_TYPE_DISPLAY; | |
334 if (EQ (symbol, Qchar)) return CHAR_TABLE_TYPE_CHAR; | |
335 #ifdef MULE | |
336 if (EQ (symbol, Qcategory)) return CHAR_TABLE_TYPE_CATEGORY; | |
337 #endif | |
338 | |
563 | 339 invalid_constant ("Unrecognized char table type", symbol); |
1204 | 340 RETURN_NOT_REACHED (CHAR_TABLE_TYPE_GENERIC); |
428 | 341 } |
342 | |
343 static void | |
826 | 344 decode_char_table_range (Lisp_Object range, struct chartab_range *outrange) |
428 | 345 { |
4932 | 346 xzero (*outrange); |
826 | 347 if (EQ (range, Qt)) |
348 outrange->type = CHARTAB_RANGE_ALL; | |
349 else if (CHAR_OR_CHAR_INTP (range)) | |
350 { | |
351 outrange->type = CHARTAB_RANGE_CHAR; | |
352 outrange->ch = XCHAR_OR_CHAR_INT (range); | |
353 } | |
354 #ifndef MULE | |
428 | 355 else |
826 | 356 sferror ("Range must be t or a character", range); |
357 #else /* MULE */ | |
358 else if (VECTORP (range)) | |
359 { | |
360 Lisp_Vector *vec = XVECTOR (range); | |
361 Lisp_Object *elts = vector_data (vec); | |
362 if (vector_length (vec) != 2) | |
363 sferror ("Length of charset row vector must be 2", | |
364 range); | |
365 outrange->type = CHARTAB_RANGE_ROW; | |
366 outrange->charset = Fget_charset (elts[0]); | |
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367 CHECK_FIXNUM (elts[1]); |
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368 outrange->row = XFIXNUM (elts[1]); |
826 | 369 switch (XCHARSET_TYPE (outrange->charset)) |
370 { | |
371 case CHARSET_TYPE_94: | |
372 case CHARSET_TYPE_96: | |
373 sferror ("Charset in row vector must be multi-byte", | |
374 outrange->charset); | |
375 case CHARSET_TYPE_94X94: | |
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376 check_integer_range (make_fixnum (outrange->row), make_fixnum (33), |
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377 make_fixnum (126)); |
826 | 378 break; |
379 case CHARSET_TYPE_96X96: | |
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380 check_integer_range (make_fixnum (outrange->row), make_fixnum (32), |
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381 make_fixnum (127)); |
826 | 382 break; |
383 default: | |
2500 | 384 ABORT (); |
826 | 385 } |
386 } | |
387 else | |
388 { | |
389 if (!CHARSETP (range) && !SYMBOLP (range)) | |
390 sferror | |
391 ("Char table range must be t, charset, char, or vector", range); | |
392 outrange->type = CHARTAB_RANGE_CHARSET; | |
393 outrange->charset = Fget_charset (range); | |
394 } | |
395 #endif /* MULE */ | |
428 | 396 } |
397 | |
826 | 398 static Lisp_Object |
399 encode_char_table_range (struct chartab_range *range) | |
428 | 400 { |
826 | 401 switch (range->type) |
428 | 402 { |
826 | 403 case CHARTAB_RANGE_ALL: |
404 return Qt; | |
405 | |
406 #ifdef MULE | |
407 case CHARTAB_RANGE_CHARSET: | |
408 return XCHARSET_NAME (Fget_charset (range->charset)); | |
428 | 409 |
826 | 410 case CHARTAB_RANGE_ROW: |
411 return vector2 (XCHARSET_NAME (Fget_charset (range->charset)), | |
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412 make_fixnum (range->row)); |
826 | 413 #endif |
414 case CHARTAB_RANGE_CHAR: | |
415 return make_char (range->ch); | |
416 default: | |
2500 | 417 ABORT (); |
428 | 418 } |
826 | 419 return Qnil; /* not reached */ |
428 | 420 } |
421 | |
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422 static Lisp_Object |
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423 char_table_default_for_type (enum char_table_type type) |
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424 { |
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425 switch (type) |
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426 { |
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427 case CHAR_TABLE_TYPE_CHAR: |
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428 return make_char (0); |
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429 break; |
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430 case CHAR_TABLE_TYPE_DISPLAY: |
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431 case CHAR_TABLE_TYPE_GENERIC: |
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432 #ifdef MULE |
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433 case CHAR_TABLE_TYPE_CATEGORY: |
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434 #endif /* MULE */ |
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435 return Qnil; |
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436 break; |
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437 |
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438 case CHAR_TABLE_TYPE_SYNTAX: |
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439 return make_integer (Sinherit); |
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440 break; |
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441 } |
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442 ABORT(); |
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443 return Qzero; |
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444 } |
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445 |
826 | 446 struct ptemap |
428 | 447 { |
826 | 448 Lisp_Object printcharfun; |
449 int first; | |
450 }; | |
428 | 451 |
826 | 452 static int |
2286 | 453 print_table_entry (struct chartab_range *range, Lisp_Object UNUSED (table), |
826 | 454 Lisp_Object val, void *arg) |
455 { | |
456 struct ptemap *a = (struct ptemap *) arg; | |
457 struct gcpro gcpro1; | |
458 Lisp_Object lisprange; | |
459 if (!a->first) | |
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460 write_ascstring (a->printcharfun, " "); |
826 | 461 a->first = 0; |
462 lisprange = encode_char_table_range (range); | |
463 GCPRO1 (lisprange); | |
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464 write_fmt_string_lisp (a->printcharfun, "%s %S", 2, lisprange, val); |
826 | 465 UNGCPRO; |
466 return 0; | |
428 | 467 } |
468 | |
469 static void | |
2286 | 470 print_char_table (Lisp_Object obj, Lisp_Object printcharfun, |
471 int UNUSED (escapeflag)) | |
428 | 472 { |
440 | 473 Lisp_Char_Table *ct = XCHAR_TABLE (obj); |
826 | 474 struct chartab_range range; |
475 struct ptemap arg; | |
476 | |
477 range.type = CHARTAB_RANGE_ALL; | |
478 arg.printcharfun = printcharfun; | |
479 arg.first = 1; | |
428 | 480 |
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481 write_fmt_string_lisp (printcharfun, |
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482 "#s(char-table :type %s", 1, |
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483 char_table_type_to_symbol (ct->type)); |
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484 if (!(EQ (ct->default_, char_table_default_for_type (ct->type)))) |
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485 { |
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486 write_fmt_string_lisp (printcharfun, " :default %S", 1, ct->default_); |
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487 } |
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488 |
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489 write_ascstring (printcharfun, " :data ("); |
826 | 490 map_char_table (obj, &range, print_table_entry, &arg); |
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491 write_ascstring (printcharfun, "))"); |
428 | 492 |
826 | 493 /* #### need to print and read the default; but that will allow the |
494 default to be modified, which we don't (yet) support -- but FSF does */ | |
428 | 495 } |
496 | |
497 static int | |
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498 char_table_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, int foldcase) |
428 | 499 { |
440 | 500 Lisp_Char_Table *ct1 = XCHAR_TABLE (obj1); |
501 Lisp_Char_Table *ct2 = XCHAR_TABLE (obj2); | |
428 | 502 int i; |
503 | |
504 if (CHAR_TABLE_TYPE (ct1) != CHAR_TABLE_TYPE (ct2)) | |
505 return 0; | |
506 | |
507 for (i = 0; i < NUM_ASCII_CHARS; i++) | |
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508 if (!internal_equal_0 (ct1->ascii[i], ct2->ascii[i], depth + 1, foldcase)) |
428 | 509 return 0; |
510 | |
511 #ifdef MULE | |
512 for (i = 0; i < NUM_LEADING_BYTES; i++) | |
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513 if (!internal_equal_0 (ct1->level1[i], ct2->level1[i], depth + 1, foldcase)) |
428 | 514 return 0; |
515 #endif /* MULE */ | |
516 | |
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517 return internal_equal_0 (ct1->default_, ct2->default_, depth + 1, foldcase); |
428 | 518 } |
519 | |
665 | 520 static Hashcode |
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521 char_table_hash (Lisp_Object obj, int depth, Boolint equalp) |
428 | 522 { |
440 | 523 Lisp_Char_Table *ct = XCHAR_TABLE (obj); |
665 | 524 Hashcode hashval = internal_array_hash (ct->ascii, NUM_ASCII_CHARS, |
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525 depth + 1, equalp); |
428 | 526 #ifdef MULE |
527 hashval = HASH2 (hashval, | |
826 | 528 internal_array_hash (ct->level1, NUM_LEADING_BYTES, |
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529 depth + 1, equalp)); |
428 | 530 #endif /* MULE */ |
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531 return HASH2 (hashval, internal_hash (ct->default_, depth + 1, equalp)); |
428 | 532 } |
533 | |
1204 | 534 static const struct memory_description char_table_description[] = { |
440 | 535 { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table, ascii), NUM_ASCII_CHARS }, |
428 | 536 #ifdef MULE |
440 | 537 { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table, level1), NUM_LEADING_BYTES }, |
428 | 538 #endif |
793 | 539 { XD_LISP_OBJECT, offsetof (Lisp_Char_Table, parent) }, |
540 { XD_LISP_OBJECT, offsetof (Lisp_Char_Table, default_) }, | |
440 | 541 { XD_LISP_OBJECT, offsetof (Lisp_Char_Table, mirror_table) }, |
542 { XD_LO_LINK, offsetof (Lisp_Char_Table, next_table) }, | |
428 | 543 { XD_END } |
544 }; | |
545 | |
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546 DEFINE_DUMPABLE_LISP_OBJECT ("char-table", char_table, |
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547 mark_char_table, print_char_table, 0, |
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548 char_table_equal, char_table_hash, |
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549 char_table_description, |
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550 Lisp_Char_Table); |
428 | 551 |
552 DEFUN ("char-table-p", Fchar_table_p, 1, 1, 0, /* | |
553 Return non-nil if OBJECT is a char table. | |
554 */ | |
555 (object)) | |
556 { | |
557 return CHAR_TABLEP (object) ? Qt : Qnil; | |
558 } | |
559 | |
560 DEFUN ("char-table-type-list", Fchar_table_type_list, 0, 0, 0, /* | |
561 Return a list of the recognized char table types. | |
800 | 562 See `make-char-table'. |
428 | 563 */ |
564 ()) | |
565 { | |
566 #ifdef MULE | |
567 return list5 (Qchar, Qcategory, Qdisplay, Qgeneric, Qsyntax); | |
568 #else | |
569 return list4 (Qchar, Qdisplay, Qgeneric, Qsyntax); | |
570 #endif | |
571 } | |
572 | |
573 DEFUN ("valid-char-table-type-p", Fvalid_char_table_type_p, 1, 1, 0, /* | |
574 Return t if TYPE if a recognized char table type. | |
800 | 575 See `make-char-table'. |
428 | 576 */ |
577 (type)) | |
578 { | |
579 return (EQ (type, Qchar) || | |
580 #ifdef MULE | |
581 EQ (type, Qcategory) || | |
582 #endif | |
583 EQ (type, Qdisplay) || | |
584 EQ (type, Qgeneric) || | |
585 EQ (type, Qsyntax)) ? Qt : Qnil; | |
586 } | |
587 | |
588 DEFUN ("char-table-type", Fchar_table_type, 1, 1, 0, /* | |
444 | 589 Return the type of CHAR-TABLE. |
800 | 590 See `make-char-table'. |
428 | 591 */ |
444 | 592 (char_table)) |
428 | 593 { |
444 | 594 CHECK_CHAR_TABLE (char_table); |
595 return char_table_type_to_symbol (XCHAR_TABLE (char_table)->type); | |
428 | 596 } |
597 | |
1296 | 598 static void |
599 set_char_table_dirty (Lisp_Object table) | |
600 { | |
601 assert (!XCHAR_TABLE (table)->mirror_table_p); | |
602 XCHAR_TABLE (XCHAR_TABLE (table)->mirror_table)->dirty = 1; | |
603 } | |
604 | |
428 | 605 void |
826 | 606 set_char_table_default (Lisp_Object table, Lisp_Object value) |
607 { | |
608 Lisp_Char_Table *ct = XCHAR_TABLE (table); | |
609 ct->default_ = value; | |
610 if (ct->type == CHAR_TABLE_TYPE_SYNTAX) | |
1296 | 611 set_char_table_dirty (table); |
826 | 612 } |
613 | |
614 static void | |
440 | 615 fill_char_table (Lisp_Char_Table *ct, Lisp_Object value) |
428 | 616 { |
617 int i; | |
618 | |
619 for (i = 0; i < NUM_ASCII_CHARS; i++) | |
620 ct->ascii[i] = value; | |
621 #ifdef MULE | |
622 for (i = 0; i < NUM_LEADING_BYTES; i++) | |
1296 | 623 { |
1330 | 624 /* Don't get stymied when initting the table, or when trying to |
625 free a pdump object. */ | |
1296 | 626 if (!EQ (ct->level1[i], Qnull_pointer) && |
1330 | 627 CHAR_TABLE_ENTRYP (ct->level1[i]) && |
628 !OBJECT_DUMPED_P (ct->level1[1])) | |
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629 free_normal_lisp_object (ct->level1[i]); |
1296 | 630 ct->level1[i] = value; |
631 } | |
428 | 632 #endif /* MULE */ |
633 | |
634 if (ct->type == CHAR_TABLE_TYPE_SYNTAX) | |
1296 | 635 set_char_table_dirty (wrap_char_table (ct)); |
428 | 636 } |
637 | |
638 DEFUN ("reset-char-table", Freset_char_table, 1, 1, 0, /* | |
444 | 639 Reset CHAR-TABLE to its default state. |
428 | 640 */ |
444 | 641 (char_table)) |
428 | 642 { |
440 | 643 Lisp_Char_Table *ct; |
428 | 644 |
444 | 645 CHECK_CHAR_TABLE (char_table); |
646 ct = XCHAR_TABLE (char_table); | |
428 | 647 |
826 | 648 /* Avoid doubly updating the syntax table by setting the default ourselves, |
649 since set_char_table_default() also updates. */ | |
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650 ct->default_ = char_table_default_for_type (ct->type); |
826 | 651 fill_char_table (ct, Qunbound); |
652 | |
428 | 653 return Qnil; |
654 } | |
655 | |
656 DEFUN ("make-char-table", Fmake_char_table, 1, 1, 0, /* | |
657 Return a new, empty char table of type TYPE. | |
800 | 658 |
659 A char table is a table that maps characters (or ranges of characters) | |
660 to values. Char tables are specialized for characters, only allowing | |
661 particular sorts of ranges to be assigned values. Although this | |
662 loses in generality, it makes for extremely fast (constant-time) | |
663 lookups, and thus is feasible for applications that do an extremely | |
664 large number of lookups (e.g. scanning a buffer for a character in | |
665 a particular syntax, where a lookup in the syntax table must occur | |
666 once per character). | |
667 | |
668 When Mule support exists, the types of ranges that can be assigned | |
669 values are | |
670 | |
2714 | 671 -- all characters (represented by t) |
800 | 672 -- an entire charset |
2714 | 673 -- a single row in a two-octet charset (represented by a vector of two |
674 elements: a two-octet charset and a row number; the row must be an | |
675 integer, not a character) | |
800 | 676 -- a single character |
677 | |
678 When Mule support is not present, the types of ranges that can be | |
679 assigned values are | |
680 | |
2714 | 681 -- all characters (represented by t) |
800 | 682 -- a single character |
683 | |
684 To create a char table, use `make-char-table'. | |
685 To modify a char table, use `put-char-table' or `remove-char-table'. | |
686 To retrieve the value for a particular character, use `get-char-table'. | |
826 | 687 See also `map-char-table', `reset-char-table', `copy-char-table', |
800 | 688 `char-table-p', `valid-char-table-type-p', `char-table-type-list', |
689 `valid-char-table-value-p', and `check-char-table-value'. | |
690 | |
691 Each char table type is used for a different purpose and allows different | |
692 sorts of values. The different char table types are | |
693 | |
694 `category' | |
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695 Used for category tables, which specify the regexp categories that a |
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696 character is in. The valid values are nil or a bit vector of 95 |
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697 elements, and values default to nil. Higher-level Lisp functions |
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698 are provided for working with category tables. Currently categories |
800 | 699 and category tables only exist when Mule support is present. |
700 `char' | |
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701 A generalized char table, for mapping from one character to another. |
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702 Used for case tables, syntax matching tables, |
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703 `keyboard-translate-table', etc. The valid values are characters, |
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704 and the default result given by `get-char-table' if a value hasn't |
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705 been set for a given character or for a range that includes it, is |
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706 ?\x00. |
800 | 707 `generic' |
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708 An even more generalized char table, for mapping from a character to |
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709 anything. The default result given by `get-char-table' is nil. |
800 | 710 `display' |
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711 Used for display tables, which specify how a particular character is |
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712 to appear when displayed. #### Not yet implemented; currently, the |
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713 display table code uses generic char tables, and it's not clear that |
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714 implementing this char table type would be useful. |
800 | 715 `syntax' |
716 Used for syntax tables, which specify the syntax of a particular | |
717 character. Higher-level Lisp functions are provided for | |
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718 working with syntax tables. The valid values are integers, and the |
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719 default result given by `get-char-table' is the syntax code for |
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720 `inherit'. |
428 | 721 */ |
722 (type)) | |
723 { | |
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724 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (char_table); |
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725 Lisp_Char_Table *ct = XCHAR_TABLE (obj); |
428 | 726 enum char_table_type ty = symbol_to_char_table_type (type); |
727 | |
728 ct->type = ty; | |
729 if (ty == CHAR_TABLE_TYPE_SYNTAX) | |
730 { | |
826 | 731 /* Qgeneric not Qsyntax because a syntax table has a mirror table |
732 and we don't want infinite recursion */ | |
428 | 733 ct->mirror_table = Fmake_char_table (Qgeneric); |
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734 set_char_table_default (ct->mirror_table, make_fixnum (Sword)); |
1296 | 735 XCHAR_TABLE (ct->mirror_table)->mirror_table_p = 1; |
736 XCHAR_TABLE (ct->mirror_table)->mirror_table = obj; | |
428 | 737 } |
738 else | |
739 ct->mirror_table = Qnil; | |
740 ct->next_table = Qnil; | |
793 | 741 ct->parent = Qnil; |
742 ct->default_ = Qnil; | |
428 | 743 if (ty == CHAR_TABLE_TYPE_SYNTAX) |
744 { | |
745 ct->next_table = Vall_syntax_tables; | |
746 Vall_syntax_tables = obj; | |
747 } | |
748 Freset_char_table (obj); | |
749 return obj; | |
750 } | |
751 | |
752 #ifdef MULE | |
753 | |
754 static Lisp_Object | |
755 make_char_table_entry (Lisp_Object initval) | |
756 { | |
757 int i; | |
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758 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (char_table_entry); |
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759 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj); |
428 | 760 |
761 for (i = 0; i < 96; i++) | |
762 cte->level2[i] = initval; | |
763 | |
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764 return obj; |
428 | 765 } |
766 | |
767 static Lisp_Object | |
768 copy_char_table_entry (Lisp_Object entry) | |
769 { | |
440 | 770 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (entry); |
428 | 771 int i; |
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772 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (char_table_entry); |
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773 Lisp_Char_Table_Entry *ctenew = XCHAR_TABLE_ENTRY (obj); |
428 | 774 |
775 for (i = 0; i < 96; i++) | |
776 { | |
3025 | 777 Lisp_Object new_ = cte->level2[i]; |
778 if (CHAR_TABLE_ENTRYP (new_)) | |
779 ctenew->level2[i] = copy_char_table_entry (new_); | |
428 | 780 else |
3025 | 781 ctenew->level2[i] = new_; |
428 | 782 } |
783 | |
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784 return obj; |
428 | 785 } |
786 | |
787 #endif /* MULE */ | |
788 | |
789 DEFUN ("copy-char-table", Fcopy_char_table, 1, 1, 0, /* | |
444 | 790 Return a new char table which is a copy of CHAR-TABLE. |
428 | 791 It will contain the same values for the same characters and ranges |
444 | 792 as CHAR-TABLE. The values will not themselves be copied. |
428 | 793 */ |
444 | 794 (char_table)) |
428 | 795 { |
440 | 796 Lisp_Char_Table *ct, *ctnew; |
428 | 797 Lisp_Object obj; |
798 int i; | |
799 | |
444 | 800 CHECK_CHAR_TABLE (char_table); |
801 ct = XCHAR_TABLE (char_table); | |
3879 | 802 assert(!ct->mirror_table_p); |
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803 obj = ALLOC_NORMAL_LISP_OBJECT (char_table); |
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804 ctnew = XCHAR_TABLE (obj); |
428 | 805 ctnew->type = ct->type; |
793 | 806 ctnew->parent = ct->parent; |
807 ctnew->default_ = ct->default_; | |
3879 | 808 ctnew->mirror_table_p = 0; |
428 | 809 |
810 for (i = 0; i < NUM_ASCII_CHARS; i++) | |
811 { | |
3025 | 812 Lisp_Object new_ = ct->ascii[i]; |
428 | 813 #ifdef MULE |
3025 | 814 assert (! (CHAR_TABLE_ENTRYP (new_))); |
428 | 815 #endif /* MULE */ |
3025 | 816 ctnew->ascii[i] = new_; |
428 | 817 } |
818 | |
819 #ifdef MULE | |
820 | |
821 for (i = 0; i < NUM_LEADING_BYTES; i++) | |
822 { | |
3025 | 823 Lisp_Object new_ = ct->level1[i]; |
824 if (CHAR_TABLE_ENTRYP (new_)) | |
825 ctnew->level1[i] = copy_char_table_entry (new_); | |
428 | 826 else |
3025 | 827 ctnew->level1[i] = new_; |
428 | 828 } |
829 | |
830 #endif /* MULE */ | |
831 | |
3881 | 832 if (!EQ (ct->mirror_table, Qnil)) |
1296 | 833 { |
3879 | 834 ctnew->mirror_table = Fmake_char_table (Qgeneric); |
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835 set_char_table_default (ctnew->mirror_table, make_fixnum (Sword)); |
1296 | 836 XCHAR_TABLE (ctnew->mirror_table)->mirror_table = obj; |
3879 | 837 XCHAR_TABLE (ctnew->mirror_table)->mirror_table_p = 1; |
838 XCHAR_TABLE (ctnew->mirror_table)->dirty = 1; | |
1296 | 839 } |
428 | 840 else |
3879 | 841 ctnew->mirror_table = Qnil; |
842 | |
428 | 843 ctnew->next_table = Qnil; |
844 if (ctnew->type == CHAR_TABLE_TYPE_SYNTAX) | |
845 { | |
846 ctnew->next_table = Vall_syntax_tables; | |
847 Vall_syntax_tables = obj; | |
848 } | |
849 return obj; | |
850 } | |
851 | |
852 #ifdef MULE | |
853 | |
826 | 854 /* called from get_char_table(). */ |
428 | 855 Lisp_Object |
440 | 856 get_non_ascii_char_table_value (Lisp_Char_Table *ct, int leading_byte, |
867 | 857 Ichar c) |
428 | 858 { |
859 Lisp_Object val; | |
826 | 860 Lisp_Object charset = charset_by_leading_byte (leading_byte); |
428 | 861 int byte1, byte2; |
862 | |
867 | 863 BREAKUP_ICHAR_1_UNSAFE (c, charset, byte1, byte2); |
428 | 864 val = ct->level1[leading_byte - MIN_LEADING_BYTE]; |
865 if (CHAR_TABLE_ENTRYP (val)) | |
866 { | |
440 | 867 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val); |
428 | 868 val = cte->level2[byte1 - 32]; |
869 if (CHAR_TABLE_ENTRYP (val)) | |
870 { | |
871 cte = XCHAR_TABLE_ENTRY (val); | |
872 assert (byte2 >= 32); | |
873 val = cte->level2[byte2 - 32]; | |
874 assert (!CHAR_TABLE_ENTRYP (val)); | |
875 } | |
876 } | |
877 | |
878 return val; | |
879 } | |
880 | |
881 #endif /* MULE */ | |
882 | |
826 | 883 DEFUN ("char-table-default", Fchar_table_default, 1, 1, 0, /* |
884 Return the default value for CHAR-TABLE. When an entry for a character | |
885 does not exist, the default is returned. | |
886 */ | |
887 (char_table)) | |
428 | 888 { |
826 | 889 CHECK_CHAR_TABLE (char_table); |
890 return XCHAR_TABLE (char_table)->default_; | |
428 | 891 } |
892 | |
826 | 893 DEFUN ("set-char-table-default", Fset_char_table_default, 2, 2, 0, /* |
894 Set the default value for CHAR-TABLE to DEFAULT. | |
895 Currently, the default value for syntax tables cannot be changed. | |
896 (This policy might change in the future.) | |
897 */ | |
898 (char_table, default_)) | |
899 { | |
900 CHECK_CHAR_TABLE (char_table); | |
901 if (XCHAR_TABLE_TYPE (char_table) == CHAR_TABLE_TYPE_SYNTAX) | |
902 invalid_change ("Can't change default for syntax tables", char_table); | |
903 check_valid_char_table_value (default_, XCHAR_TABLE_TYPE (char_table), | |
904 ERROR_ME); | |
905 set_char_table_default (char_table, default_); | |
906 return Qnil; | |
907 } | |
428 | 908 |
909 DEFUN ("get-char-table", Fget_char_table, 2, 2, 0, /* | |
444 | 910 Find value for CHARACTER in CHAR-TABLE. |
428 | 911 */ |
444 | 912 (character, char_table)) |
428 | 913 { |
444 | 914 CHECK_CHAR_TABLE (char_table); |
915 CHECK_CHAR_COERCE_INT (character); | |
428 | 916 |
826 | 917 return get_char_table (XCHAR (character), char_table); |
918 } | |
919 | |
920 static int | |
2286 | 921 copy_mapper (struct chartab_range *range, Lisp_Object UNUSED (table), |
826 | 922 Lisp_Object val, void *arg) |
923 { | |
5013 | 924 put_char_table (GET_LISP_FROM_VOID (arg), range, val); |
826 | 925 return 0; |
926 } | |
927 | |
928 void | |
929 copy_char_table_range (Lisp_Object from, Lisp_Object to, | |
930 struct chartab_range *range) | |
931 { | |
5013 | 932 map_char_table (from, range, copy_mapper, STORE_LISP_IN_VOID (to)); |
826 | 933 } |
934 | |
1296 | 935 static Lisp_Object |
936 get_range_char_table_1 (struct chartab_range *range, Lisp_Object table, | |
937 Lisp_Object multi) | |
826 | 938 { |
939 Lisp_Char_Table *ct = XCHAR_TABLE (table); | |
940 Lisp_Object retval = Qnil; | |
941 | |
942 switch (range->type) | |
943 { | |
944 case CHARTAB_RANGE_CHAR: | |
945 return get_char_table (range->ch, table); | |
946 | |
947 case CHARTAB_RANGE_ALL: | |
948 { | |
949 int i; | |
950 retval = ct->ascii[0]; | |
951 | |
952 for (i = 1; i < NUM_ASCII_CHARS; i++) | |
953 if (!EQ (retval, ct->ascii[i])) | |
954 return multi; | |
955 | |
956 #ifdef MULE | |
957 for (i = MIN_LEADING_BYTE; i < MIN_LEADING_BYTE + NUM_LEADING_BYTES; | |
958 i++) | |
959 { | |
960 if (!CHARSETP (charset_by_leading_byte (i)) | |
961 || i == LEADING_BYTE_ASCII | |
962 || i == LEADING_BYTE_CONTROL_1) | |
963 continue; | |
964 if (!EQ (retval, ct->level1[i - MIN_LEADING_BYTE])) | |
965 return multi; | |
966 } | |
967 #endif /* MULE */ | |
968 | |
969 break; | |
970 } | |
971 | |
972 #ifdef MULE | |
973 case CHARTAB_RANGE_CHARSET: | |
974 if (EQ (range->charset, Vcharset_ascii)) | |
975 { | |
976 int i; | |
977 retval = ct->ascii[0]; | |
978 | |
979 for (i = 1; i < 128; i++) | |
980 if (!EQ (retval, ct->ascii[i])) | |
981 return multi; | |
982 break; | |
983 } | |
984 | |
985 if (EQ (range->charset, Vcharset_control_1)) | |
986 { | |
987 int i; | |
988 retval = ct->ascii[128]; | |
989 | |
990 for (i = 129; i < 160; i++) | |
991 if (!EQ (retval, ct->ascii[i])) | |
992 return multi; | |
993 break; | |
994 } | |
995 | |
996 { | |
997 retval = ct->level1[XCHARSET_LEADING_BYTE (range->charset) - | |
998 MIN_LEADING_BYTE]; | |
999 if (CHAR_TABLE_ENTRYP (retval)) | |
1000 return multi; | |
1001 break; | |
1002 } | |
1003 | |
1004 case CHARTAB_RANGE_ROW: | |
1005 { | |
1006 retval = ct->level1[XCHARSET_LEADING_BYTE (range->charset) - | |
1007 MIN_LEADING_BYTE]; | |
1008 if (!CHAR_TABLE_ENTRYP (retval)) | |
1009 break; | |
1010 retval = XCHAR_TABLE_ENTRY (retval)->level2[range->row - 32]; | |
1011 if (CHAR_TABLE_ENTRYP (retval)) | |
1012 return multi; | |
1013 break; | |
1014 } | |
1015 #endif /* not MULE */ | |
1016 | |
1017 default: | |
2500 | 1018 ABORT (); |
826 | 1019 } |
1020 | |
1021 if (UNBOUNDP (retval)) | |
1022 return ct->default_; | |
1023 return retval; | |
428 | 1024 } |
1025 | |
1296 | 1026 Lisp_Object |
1027 get_range_char_table (struct chartab_range *range, Lisp_Object table, | |
1028 Lisp_Object multi) | |
1029 { | |
1030 if (range->type == CHARTAB_RANGE_CHAR) | |
1031 return get_char_table (range->ch, table); | |
1032 else | |
1033 return get_range_char_table_1 (range, table, multi); | |
1034 } | |
1035 | |
1036 #ifdef ERROR_CHECK_TYPES | |
1037 | |
1038 /* Only exists so as not to trip an assert in get_char_table(). */ | |
1039 Lisp_Object | |
1040 updating_mirror_get_range_char_table (struct chartab_range *range, | |
1041 Lisp_Object table, | |
1042 Lisp_Object multi) | |
1043 { | |
1044 if (range->type == CHARTAB_RANGE_CHAR) | |
1045 return get_char_table_1 (range->ch, table); | |
1046 else | |
1047 return get_range_char_table_1 (range, table, multi); | |
1048 } | |
1049 | |
1050 #endif /* ERROR_CHECK_TYPES */ | |
1051 | |
428 | 1052 DEFUN ("get-range-char-table", Fget_range_char_table, 2, 3, 0, /* |
2714 | 1053 Find value for RANGE in CHAR-TABLE. |
428 | 1054 If there is more than one value, return MULTI (defaults to nil). |
2714 | 1055 |
1056 Valid values for RANGE are single characters, charsets, a row in a | |
1057 two-octet charset, and all characters. See `put-char-table'. | |
428 | 1058 */ |
444 | 1059 (range, char_table, multi)) |
428 | 1060 { |
1061 struct chartab_range rainj; | |
1062 | |
1063 if (CHAR_OR_CHAR_INTP (range)) | |
444 | 1064 return Fget_char_table (range, char_table); |
1065 CHECK_CHAR_TABLE (char_table); | |
428 | 1066 |
1067 decode_char_table_range (range, &rainj); | |
826 | 1068 return get_range_char_table (&rainj, char_table, multi); |
428 | 1069 } |
826 | 1070 |
428 | 1071 static int |
1072 check_valid_char_table_value (Lisp_Object value, enum char_table_type type, | |
578 | 1073 Error_Behavior errb) |
428 | 1074 { |
1075 switch (type) | |
1076 { | |
1077 case CHAR_TABLE_TYPE_SYNTAX: | |
1078 if (!ERRB_EQ (errb, ERROR_ME)) | |
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1079 return FIXNUMP (value) || (CONSP (value) && FIXNUMP (XCAR (value)) |
428 | 1080 && CHAR_OR_CHAR_INTP (XCDR (value))); |
1081 if (CONSP (value)) | |
1082 { | |
1083 Lisp_Object cdr = XCDR (value); | |
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1084 CHECK_FIXNUM (XCAR (value)); |
428 | 1085 CHECK_CHAR_COERCE_INT (cdr); |
1086 } | |
1087 else | |
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1088 CHECK_FIXNUM (value); |
428 | 1089 break; |
1090 | |
1091 #ifdef MULE | |
1092 case CHAR_TABLE_TYPE_CATEGORY: | |
1093 if (!ERRB_EQ (errb, ERROR_ME)) | |
1094 return CATEGORY_TABLE_VALUEP (value); | |
1095 CHECK_CATEGORY_TABLE_VALUE (value); | |
1096 break; | |
1097 #endif /* MULE */ | |
1098 | |
1099 case CHAR_TABLE_TYPE_GENERIC: | |
1100 return 1; | |
1101 | |
1102 case CHAR_TABLE_TYPE_DISPLAY: | |
1103 /* #### fix this */ | |
563 | 1104 maybe_signal_error (Qunimplemented, |
1105 "Display char tables not yet implemented", | |
1106 value, Qchar_table, errb); | |
428 | 1107 return 0; |
1108 | |
1109 case CHAR_TABLE_TYPE_CHAR: | |
1110 if (!ERRB_EQ (errb, ERROR_ME)) | |
1111 return CHAR_OR_CHAR_INTP (value); | |
1112 CHECK_CHAR_COERCE_INT (value); | |
1113 break; | |
1114 | |
1115 default: | |
2500 | 1116 ABORT (); |
428 | 1117 } |
1118 | |
801 | 1119 return 0; /* not (usually) reached */ |
428 | 1120 } |
1121 | |
1122 static Lisp_Object | |
1123 canonicalize_char_table_value (Lisp_Object value, enum char_table_type type) | |
1124 { | |
1125 switch (type) | |
1126 { | |
1127 case CHAR_TABLE_TYPE_SYNTAX: | |
1128 if (CONSP (value)) | |
1129 { | |
1130 Lisp_Object car = XCAR (value); | |
1131 Lisp_Object cdr = XCDR (value); | |
1132 CHECK_CHAR_COERCE_INT (cdr); | |
1133 return Fcons (car, cdr); | |
1134 } | |
1135 break; | |
1136 case CHAR_TABLE_TYPE_CHAR: | |
1137 CHECK_CHAR_COERCE_INT (value); | |
1138 break; | |
1139 default: | |
1140 break; | |
1141 } | |
1142 return value; | |
1143 } | |
1144 | |
1145 DEFUN ("valid-char-table-value-p", Fvalid_char_table_value_p, 2, 2, 0, /* | |
1146 Return non-nil if VALUE is a valid value for CHAR-TABLE-TYPE. | |
1147 */ | |
1148 (value, char_table_type)) | |
1149 { | |
1150 enum char_table_type type = symbol_to_char_table_type (char_table_type); | |
1151 | |
1152 return check_valid_char_table_value (value, type, ERROR_ME_NOT) ? Qt : Qnil; | |
1153 } | |
1154 | |
1155 DEFUN ("check-valid-char-table-value", Fcheck_valid_char_table_value, 2, 2, 0, /* | |
1156 Signal an error if VALUE is not a valid value for CHAR-TABLE-TYPE. | |
1157 */ | |
1158 (value, char_table_type)) | |
1159 { | |
1160 enum char_table_type type = symbol_to_char_table_type (char_table_type); | |
1161 | |
1162 check_valid_char_table_value (value, type, ERROR_ME); | |
1163 return Qnil; | |
1164 } | |
1165 | |
826 | 1166 /* Assign VAL to all characters in RANGE in char table TABLE. */ |
428 | 1167 |
1168 void | |
826 | 1169 put_char_table (Lisp_Object table, struct chartab_range *range, |
428 | 1170 Lisp_Object val) |
1171 { | |
826 | 1172 Lisp_Char_Table *ct = XCHAR_TABLE (table); |
1173 | |
428 | 1174 switch (range->type) |
1175 { | |
1176 case CHARTAB_RANGE_ALL: | |
1177 fill_char_table (ct, val); | |
1296 | 1178 return; /* fill_char_table() recorded the table as dirty. */ |
428 | 1179 |
1180 #ifdef MULE | |
1181 case CHARTAB_RANGE_CHARSET: | |
1182 if (EQ (range->charset, Vcharset_ascii)) | |
1183 { | |
1184 int i; | |
1185 for (i = 0; i < 128; i++) | |
1186 ct->ascii[i] = val; | |
1187 } | |
1188 else if (EQ (range->charset, Vcharset_control_1)) | |
1189 { | |
1190 int i; | |
1191 for (i = 128; i < 160; i++) | |
1192 ct->ascii[i] = val; | |
1193 } | |
1194 else | |
1195 { | |
1196 int lb = XCHARSET_LEADING_BYTE (range->charset) - MIN_LEADING_BYTE; | |
1330 | 1197 if (CHAR_TABLE_ENTRYP (ct->level1[lb]) && |
1198 !OBJECT_DUMPED_P (ct->level1[lb])) | |
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1199 free_normal_lisp_object (ct->level1[lb]); |
428 | 1200 ct->level1[lb] = val; |
1201 } | |
1202 break; | |
1203 | |
1204 case CHARTAB_RANGE_ROW: | |
1205 { | |
440 | 1206 Lisp_Char_Table_Entry *cte; |
428 | 1207 int lb = XCHARSET_LEADING_BYTE (range->charset) - MIN_LEADING_BYTE; |
1208 /* make sure that there is a separate entry for the row. */ | |
1209 if (!CHAR_TABLE_ENTRYP (ct->level1[lb])) | |
1210 ct->level1[lb] = make_char_table_entry (ct->level1[lb]); | |
1211 cte = XCHAR_TABLE_ENTRY (ct->level1[lb]); | |
1212 cte->level2[range->row - 32] = val; | |
1213 } | |
1214 break; | |
1215 #endif /* MULE */ | |
1216 | |
1217 case CHARTAB_RANGE_CHAR: | |
1218 #ifdef MULE | |
1219 { | |
1220 Lisp_Object charset; | |
1221 int byte1, byte2; | |
1222 | |
867 | 1223 BREAKUP_ICHAR (range->ch, charset, byte1, byte2); |
428 | 1224 if (EQ (charset, Vcharset_ascii)) |
1225 ct->ascii[byte1] = val; | |
1226 else if (EQ (charset, Vcharset_control_1)) | |
1227 ct->ascii[byte1 + 128] = val; | |
1228 else | |
1229 { | |
440 | 1230 Lisp_Char_Table_Entry *cte; |
428 | 1231 int lb = XCHARSET_LEADING_BYTE (charset) - MIN_LEADING_BYTE; |
1232 /* make sure that there is a separate entry for the row. */ | |
1233 if (!CHAR_TABLE_ENTRYP (ct->level1[lb])) | |
1234 ct->level1[lb] = make_char_table_entry (ct->level1[lb]); | |
1235 cte = XCHAR_TABLE_ENTRY (ct->level1[lb]); | |
1236 /* now CTE is a char table entry for the charset; | |
1237 each entry is for a single row (or character of | |
1238 a one-octet charset). */ | |
1239 if (XCHARSET_DIMENSION (charset) == 1) | |
1240 cte->level2[byte1 - 32] = val; | |
1241 else | |
1242 { | |
1243 /* assigning to one character in a two-octet charset. */ | |
1244 /* make sure that the charset row contains a separate | |
1245 entry for each character. */ | |
1246 if (!CHAR_TABLE_ENTRYP (cte->level2[byte1 - 32])) | |
1247 cte->level2[byte1 - 32] = | |
1248 make_char_table_entry (cte->level2[byte1 - 32]); | |
1249 cte = XCHAR_TABLE_ENTRY (cte->level2[byte1 - 32]); | |
1250 cte->level2[byte2 - 32] = val; | |
1251 } | |
1252 } | |
1253 } | |
1254 #else /* not MULE */ | |
1255 ct->ascii[(unsigned char) (range->ch)] = val; | |
1256 break; | |
1257 #endif /* not MULE */ | |
1258 } | |
1259 | |
1260 if (ct->type == CHAR_TABLE_TYPE_SYNTAX) | |
1296 | 1261 set_char_table_dirty (wrap_char_table (ct)); |
428 | 1262 } |
1263 | |
1264 DEFUN ("put-char-table", Fput_char_table, 3, 3, 0, /* | |
444 | 1265 Set the value for chars in RANGE to be VALUE in CHAR-TABLE. |
428 | 1266 |
1267 RANGE specifies one or more characters to be affected and should be | |
1268 one of the following: | |
1269 | |
1270 -- t (all characters are affected) | |
1271 -- A charset (only allowed when Mule support is present) | |
2714 | 1272 -- A vector of two elements: a two-octet charset and a row number; the row |
1273 must be an integer, not a character (only allowed when Mule support is | |
1274 present) | |
428 | 1275 -- A single character |
1276 | |
444 | 1277 VALUE must be a value appropriate for the type of CHAR-TABLE. |
800 | 1278 See `make-char-table'. |
428 | 1279 */ |
444 | 1280 (range, value, char_table)) |
428 | 1281 { |
440 | 1282 Lisp_Char_Table *ct; |
428 | 1283 struct chartab_range rainj; |
1284 | |
444 | 1285 CHECK_CHAR_TABLE (char_table); |
1286 ct = XCHAR_TABLE (char_table); | |
1287 check_valid_char_table_value (value, ct->type, ERROR_ME); | |
428 | 1288 decode_char_table_range (range, &rainj); |
444 | 1289 value = canonicalize_char_table_value (value, ct->type); |
826 | 1290 put_char_table (char_table, &rainj, value); |
1291 return Qnil; | |
1292 } | |
1293 | |
1294 DEFUN ("remove-char-table", Fremove_char_table, 2, 2, 0, /* | |
1295 Remove any value from chars in RANGE in CHAR-TABLE. | |
1296 | |
1297 RANGE specifies one or more characters to be affected and should be | |
1298 one of the following: | |
1299 | |
1300 -- t (all characters are affected) | |
1301 -- A charset (only allowed when Mule support is present) | |
1302 -- A vector of two elements: a two-octet charset and a row number | |
1303 (only allowed when Mule support is present) | |
1304 -- A single character | |
1305 | |
2726 | 1306 With all values removed, the default value will be returned by |
1307 `get-char-table' and `get-range-char-table'. | |
826 | 1308 */ |
1309 (range, char_table)) | |
1310 { | |
1311 struct chartab_range rainj; | |
1312 | |
1313 CHECK_CHAR_TABLE (char_table); | |
1314 decode_char_table_range (range, &rainj); | |
1315 put_char_table (char_table, &rainj, Qunbound); | |
428 | 1316 return Qnil; |
1317 } | |
1318 | |
1319 /* Map FN over the ASCII chars in CT. */ | |
1320 | |
1321 static int | |
826 | 1322 map_over_charset_ascii_1 (Lisp_Char_Table *ct, |
1323 int start, int stop, | |
1324 int (*fn) (struct chartab_range *range, | |
1325 Lisp_Object table, Lisp_Object val, | |
1326 void *arg), | |
1327 void *arg) | |
1328 { | |
1329 struct chartab_range rainj; | |
1330 int i, retval; | |
1331 | |
1332 rainj.type = CHARTAB_RANGE_CHAR; | |
1333 | |
1334 for (i = start, retval = 0; i <= stop && retval == 0; i++) | |
1335 { | |
867 | 1336 rainj.ch = (Ichar) i; |
826 | 1337 if (!UNBOUNDP (ct->ascii[i])) |
1338 retval = (fn) (&rainj, wrap_char_table (ct), ct->ascii[i], arg); | |
1339 } | |
1340 | |
1341 return retval; | |
1342 } | |
1343 | |
1344 | |
1345 /* Map FN over the ASCII chars in CT. */ | |
1346 | |
1347 static int | |
440 | 1348 map_over_charset_ascii (Lisp_Char_Table *ct, |
428 | 1349 int (*fn) (struct chartab_range *range, |
826 | 1350 Lisp_Object table, Lisp_Object val, |
1351 void *arg), | |
428 | 1352 void *arg) |
1353 { | |
826 | 1354 return map_over_charset_ascii_1 (ct, 0, |
428 | 1355 #ifdef MULE |
826 | 1356 127, |
428 | 1357 #else |
826 | 1358 255, |
428 | 1359 #endif |
826 | 1360 fn, arg); |
428 | 1361 } |
1362 | |
1363 #ifdef MULE | |
1364 | |
1365 /* Map FN over the Control-1 chars in CT. */ | |
1366 | |
1367 static int | |
440 | 1368 map_over_charset_control_1 (Lisp_Char_Table *ct, |
428 | 1369 int (*fn) (struct chartab_range *range, |
826 | 1370 Lisp_Object table, Lisp_Object val, |
1371 void *arg), | |
428 | 1372 void *arg) |
1373 { | |
826 | 1374 return map_over_charset_ascii_1 (ct, 128, 159, fn, arg); |
428 | 1375 } |
1376 | |
1377 /* Map FN over the row ROW of two-byte charset CHARSET. | |
1378 There must be a separate value for that row in the char table. | |
1379 CTE specifies the char table entry for CHARSET. */ | |
1380 | |
1381 static int | |
826 | 1382 map_over_charset_row (Lisp_Char_Table *ct, |
1383 Lisp_Char_Table_Entry *cte, | |
428 | 1384 Lisp_Object charset, int row, |
1385 int (*fn) (struct chartab_range *range, | |
826 | 1386 Lisp_Object table, Lisp_Object val, |
1387 void *arg), | |
428 | 1388 void *arg) |
1389 { | |
1390 Lisp_Object val = cte->level2[row - 32]; | |
1391 | |
826 | 1392 if (UNBOUNDP (val)) |
1393 return 0; | |
1394 else if (!CHAR_TABLE_ENTRYP (val)) | |
428 | 1395 { |
1396 struct chartab_range rainj; | |
826 | 1397 |
428 | 1398 rainj.type = CHARTAB_RANGE_ROW; |
1399 rainj.charset = charset; | |
1400 rainj.row = row; | |
826 | 1401 return (fn) (&rainj, wrap_char_table (ct), val, arg); |
428 | 1402 } |
1403 else | |
1404 { | |
1405 struct chartab_range rainj; | |
1406 int i, retval; | |
826 | 1407 int start, stop; |
1408 | |
1409 get_charset_limits (charset, &start, &stop); | |
428 | 1410 |
1411 cte = XCHAR_TABLE_ENTRY (val); | |
1412 | |
1413 rainj.type = CHARTAB_RANGE_CHAR; | |
1414 | |
826 | 1415 for (i = start, retval = 0; i <= stop && retval == 0; i++) |
428 | 1416 { |
867 | 1417 rainj.ch = make_ichar (charset, row, i); |
826 | 1418 if (!UNBOUNDP (cte->level2[i - 32])) |
1419 retval = (fn) (&rainj, wrap_char_table (ct), cte->level2[i - 32], | |
1420 arg); | |
428 | 1421 } |
1422 return retval; | |
1423 } | |
1424 } | |
1425 | |
1426 | |
1427 static int | |
440 | 1428 map_over_other_charset (Lisp_Char_Table *ct, int lb, |
428 | 1429 int (*fn) (struct chartab_range *range, |
826 | 1430 Lisp_Object table, Lisp_Object val, |
1431 void *arg), | |
428 | 1432 void *arg) |
1433 { | |
1434 Lisp_Object val = ct->level1[lb - MIN_LEADING_BYTE]; | |
826 | 1435 Lisp_Object charset = charset_by_leading_byte (lb); |
428 | 1436 |
1437 if (!CHARSETP (charset) | |
1438 || lb == LEADING_BYTE_ASCII | |
1439 || lb == LEADING_BYTE_CONTROL_1) | |
1440 return 0; | |
1441 | |
826 | 1442 if (UNBOUNDP (val)) |
1443 return 0; | |
428 | 1444 if (!CHAR_TABLE_ENTRYP (val)) |
1445 { | |
1446 struct chartab_range rainj; | |
1447 | |
1448 rainj.type = CHARTAB_RANGE_CHARSET; | |
1449 rainj.charset = charset; | |
826 | 1450 return (fn) (&rainj, wrap_char_table (ct), val, arg); |
428 | 1451 } |
1452 { | |
440 | 1453 Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val); |
826 | 1454 int start, stop; |
428 | 1455 int i, retval; |
1456 | |
826 | 1457 get_charset_limits (charset, &start, &stop); |
428 | 1458 if (XCHARSET_DIMENSION (charset) == 1) |
1459 { | |
1460 struct chartab_range rainj; | |
1461 rainj.type = CHARTAB_RANGE_CHAR; | |
1462 | |
826 | 1463 for (i = start, retval = 0; i <= stop && retval == 0; i++) |
428 | 1464 { |
867 | 1465 rainj.ch = make_ichar (charset, i, 0); |
826 | 1466 if (!UNBOUNDP (cte->level2[i - 32])) |
1467 retval = (fn) (&rainj, wrap_char_table (ct), cte->level2[i - 32], | |
1468 arg); | |
428 | 1469 } |
1470 } | |
1471 else | |
1472 { | |
826 | 1473 for (i = start, retval = 0; i <= stop && retval == 0; i++) |
1474 retval = map_over_charset_row (ct, cte, charset, i, fn, arg); | |
428 | 1475 } |
1476 | |
1477 return retval; | |
1478 } | |
1479 } | |
1480 | |
1481 #endif /* MULE */ | |
1482 | |
1483 /* Map FN (with client data ARG) over range RANGE in char table CT. | |
1484 Mapping stops the first time FN returns non-zero, and that value | |
826 | 1485 becomes the return value of map_char_table(). |
1486 | |
1487 #### This mapping code is way ugly. The FSF version, in contrast, | |
1488 is short and sweet, and much more recursive. There should be some way | |
1489 of cleaning this up. */ | |
428 | 1490 |
1491 int | |
826 | 1492 map_char_table (Lisp_Object table, |
428 | 1493 struct chartab_range *range, |
1494 int (*fn) (struct chartab_range *range, | |
826 | 1495 Lisp_Object table, Lisp_Object val, void *arg), |
428 | 1496 void *arg) |
1497 { | |
826 | 1498 Lisp_Char_Table *ct = XCHAR_TABLE (table); |
428 | 1499 switch (range->type) |
1500 { | |
1501 case CHARTAB_RANGE_ALL: | |
1502 { | |
1503 int retval; | |
1504 | |
1505 retval = map_over_charset_ascii (ct, fn, arg); | |
1506 if (retval) | |
1507 return retval; | |
1508 #ifdef MULE | |
1509 retval = map_over_charset_control_1 (ct, fn, arg); | |
1510 if (retval) | |
1511 return retval; | |
1512 { | |
1513 int i; | |
1514 int start = MIN_LEADING_BYTE; | |
1515 int stop = start + NUM_LEADING_BYTES; | |
1516 | |
1517 for (i = start, retval = 0; i < stop && retval == 0; i++) | |
1518 { | |
771 | 1519 if (i != LEADING_BYTE_ASCII && i != LEADING_BYTE_CONTROL_1) |
1520 retval = map_over_other_charset (ct, i, fn, arg); | |
428 | 1521 } |
1522 } | |
1523 #endif /* MULE */ | |
1524 return retval; | |
1525 } | |
1526 | |
1527 #ifdef MULE | |
1528 case CHARTAB_RANGE_CHARSET: | |
1529 return map_over_other_charset (ct, | |
1530 XCHARSET_LEADING_BYTE (range->charset), | |
1531 fn, arg); | |
1532 | |
1533 case CHARTAB_RANGE_ROW: | |
1534 { | |
771 | 1535 Lisp_Object val = ct->level1[XCHARSET_LEADING_BYTE (range->charset) - |
1536 MIN_LEADING_BYTE]; | |
826 | 1537 |
1538 if (CHAR_TABLE_ENTRYP (val)) | |
1539 return map_over_charset_row (ct, XCHAR_TABLE_ENTRY (val), | |
1540 range->charset, range->row, fn, arg); | |
1541 else if (!UNBOUNDP (val)) | |
428 | 1542 { |
1543 struct chartab_range rainj; | |
1544 | |
1545 rainj.type = CHARTAB_RANGE_ROW; | |
1546 rainj.charset = range->charset; | |
1547 rainj.row = range->row; | |
826 | 1548 return (fn) (&rainj, table, val, arg); |
428 | 1549 } |
1550 else | |
826 | 1551 return 0; |
428 | 1552 } |
1553 #endif /* MULE */ | |
1554 | |
1555 case CHARTAB_RANGE_CHAR: | |
1556 { | |
867 | 1557 Ichar ch = range->ch; |
826 | 1558 Lisp_Object val = get_char_table (ch, table); |
428 | 1559 struct chartab_range rainj; |
1560 | |
826 | 1561 if (!UNBOUNDP (val)) |
1562 { | |
1563 rainj.type = CHARTAB_RANGE_CHAR; | |
1564 rainj.ch = ch; | |
1565 return (fn) (&rainj, table, val, arg); | |
1566 } | |
1567 else | |
1568 return 0; | |
428 | 1569 } |
1570 | |
1571 default: | |
2500 | 1572 ABORT (); |
428 | 1573 } |
1574 | |
1575 return 0; | |
1576 } | |
1577 | |
1578 struct slow_map_char_table_arg | |
1579 { | |
1580 Lisp_Object function; | |
1581 Lisp_Object retval; | |
1582 }; | |
1583 | |
1584 static int | |
1585 slow_map_char_table_fun (struct chartab_range *range, | |
2286 | 1586 Lisp_Object UNUSED (table), Lisp_Object val, |
1587 void *arg) | |
428 | 1588 { |
1589 struct slow_map_char_table_arg *closure = | |
1590 (struct slow_map_char_table_arg *) arg; | |
1591 | |
826 | 1592 closure->retval = call2 (closure->function, encode_char_table_range (range), |
1593 val); | |
428 | 1594 return !NILP (closure->retval); |
1595 } | |
1596 | |
1597 DEFUN ("map-char-table", Fmap_char_table, 2, 3, 0, /* | |
2726 | 1598 Map FUNCTION over CHAR-TABLE until it returns non-nil; return that value. |
1599 FUNCTION is called with two arguments, each key and entry in the table. | |
1600 | |
1601 RANGE specifies a subrange to map over. If omitted or t, it defaults to | |
1602 the entire table. | |
428 | 1603 |
2726 | 1604 Both RANGE and the keys passed to FUNCTION are in the same format as the |
1605 RANGE argument to `put-char-table'. N.B. This function does NOT map over | |
1606 all characters in RANGE, but over the subranges that have been assigned to. | |
1607 Thus this function is most suitable for searching a char-table, or for | |
1608 populating one char-table based on the contents of another. The current | |
1609 implementation does not coalesce ranges all of whose values are the same. | |
428 | 1610 */ |
444 | 1611 (function, char_table, range)) |
428 | 1612 { |
1613 struct slow_map_char_table_arg slarg; | |
1614 struct gcpro gcpro1, gcpro2; | |
1615 struct chartab_range rainj; | |
1616 | |
444 | 1617 CHECK_CHAR_TABLE (char_table); |
428 | 1618 if (NILP (range)) |
1619 range = Qt; | |
1620 decode_char_table_range (range, &rainj); | |
1621 slarg.function = function; | |
1622 slarg.retval = Qnil; | |
1623 GCPRO2 (slarg.function, slarg.retval); | |
826 | 1624 map_char_table (char_table, &rainj, slow_map_char_table_fun, &slarg); |
428 | 1625 UNGCPRO; |
1626 | |
1627 return slarg.retval; | |
1628 } | |
1629 | |
1630 | |
1631 | |
1632 /************************************************************************/ | |
1633 /* Char table read syntax */ | |
1634 /************************************************************************/ | |
1635 | |
1636 static int | |
2286 | 1637 chartab_type_validate (Lisp_Object UNUSED (keyword), Lisp_Object value, |
1638 Error_Behavior UNUSED (errb)) | |
428 | 1639 { |
1640 /* #### should deal with ERRB */ | |
1641 symbol_to_char_table_type (value); | |
1642 return 1; | |
1643 } | |
1644 | |
826 | 1645 /* #### Document the print/read format; esp. what's this cons element? */ |
1646 | |
428 | 1647 static int |
2286 | 1648 chartab_data_validate (Lisp_Object UNUSED (keyword), Lisp_Object value, |
1649 Error_Behavior UNUSED (errb)) | |
428 | 1650 { |
1651 /* #### should deal with ERRB */ | |
2367 | 1652 EXTERNAL_PROPERTY_LIST_LOOP_3 (range, data, value) |
428 | 1653 { |
1654 struct chartab_range dummy; | |
1655 | |
1656 if (CONSP (range)) | |
1657 { | |
1658 if (!CONSP (XCDR (range)) | |
1659 || !NILP (XCDR (XCDR (range)))) | |
563 | 1660 sferror ("Invalid range format", range); |
428 | 1661 decode_char_table_range (XCAR (range), &dummy); |
1662 decode_char_table_range (XCAR (XCDR (range)), &dummy); | |
1663 } | |
1664 else | |
1665 decode_char_table_range (range, &dummy); | |
1666 } | |
1667 | |
1668 return 1; | |
1669 } | |
1670 | |
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1671 static int |
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1672 chartab_default_validate (Lisp_Object UNUSED (keyword), |
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1673 Lisp_Object UNUSED (value), |
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1674 Error_Behavior UNUSED (errb)) |
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1675 { |
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1676 /* We can't yet validate this, since we don't know what the type of the |
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1677 char table is. We do the validation below in chartab_instantiate(). */ |
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1678 return 1; |
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1679 } |
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1680 |
428 | 1681 static Lisp_Object |
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1682 chartab_instantiate (Lisp_Object plist) |
428 | 1683 { |
1684 Lisp_Object chartab; | |
1685 Lisp_Object type = Qgeneric; | |
5259
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1686 Lisp_Object dataval = Qnil, default_ = Qunbound; |
428 | 1687 |
5222
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1688 if (KEYWORDP (Fcar (plist))) |
428 | 1689 { |
5222
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1690 PROPERTY_LIST_LOOP_3 (key, value, plist) |
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1691 { |
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1692 if (EQ (key, Q_data)) |
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1693 { |
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1694 dataval = value; |
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1695 } |
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1696 else if (EQ (key, Q_type)) |
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1697 { |
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1698 type = value; |
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1699 } |
5320
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1700 else if (EQ (key, Q_default_)) |
5259
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1701 { |
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1702 default_ = value; |
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1703 } |
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1704 else if (!KEYWORDP (key)) |
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1705 { |
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1706 signal_error |
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1707 (Qinvalid_read_syntax, |
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1708 "can't mix keyword and non-keyword structure syntax", |
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1709 key); |
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1710 } |
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1711 else |
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1712 ABORT (); |
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1713 } |
428 | 1714 } |
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1715 #ifdef NEED_TO_HANDLE_21_4_CODE |
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1716 else |
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1717 { |
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1718 PROPERTY_LIST_LOOP_3 (key, value, plist) |
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1719 { |
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1720 if (EQ (key, Qdata)) |
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1721 { |
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1722 dataval = value; |
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1723 } |
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1724 else if (EQ (key, Qtype)) |
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1725 { |
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1726 type = value; |
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1727 } |
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1728 else if (KEYWORDP (key)) |
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1729 signal_error |
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1730 (Qinvalid_read_syntax, |
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1731 "can't mix keyword and non-keyword structure syntax", |
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1732 key); |
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1733 else |
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1734 ABORT (); |
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1735 } |
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1736 } |
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1737 #endif /* NEED_TO_HANDLE_21_4_CODE */ |
428 | 1738 |
1739 chartab = Fmake_char_table (type); | |
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1740 if (!UNBOUNDP (default_)) |
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1741 { |
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1742 check_valid_char_table_value (default_, XCHAR_TABLE_TYPE (chartab), |
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1743 ERROR_ME); |
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1744 set_char_table_default (chartab, default_); |
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1745 if (!NILP (XCHAR_TABLE (chartab)->mirror_table)) |
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1746 { |
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1747 set_char_table_default (XCHAR_TABLE (chartab)->mirror_table, |
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1748 default_); |
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1749 } |
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1750 } |
428 | 1751 |
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1752 while (!NILP (dataval)) |
428 | 1753 { |
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1754 Lisp_Object range = Fcar (dataval); |
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1755 Lisp_Object val = Fcar (Fcdr (dataval)); |
428 | 1756 |
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1757 dataval = Fcdr (Fcdr (dataval)); |
428 | 1758 if (CONSP (range)) |
1759 { | |
1760 if (CHAR_OR_CHAR_INTP (XCAR (range))) | |
1761 { | |
867 | 1762 Ichar first = XCHAR_OR_CHAR_INT (Fcar (range)); |
1763 Ichar last = XCHAR_OR_CHAR_INT (Fcar (Fcdr (range))); | |
1764 Ichar i; | |
428 | 1765 |
1766 for (i = first; i <= last; i++) | |
1767 Fput_char_table (make_char (i), val, chartab); | |
1768 } | |
1769 else | |
2500 | 1770 ABORT (); |
428 | 1771 } |
1772 else | |
1773 Fput_char_table (range, val, chartab); | |
1774 } | |
1775 | |
1776 return chartab; | |
1777 } | |
1778 | |
1779 #ifdef MULE | |
1780 | |
1781 | |
1782 /************************************************************************/ | |
1783 /* Category Tables, specifically */ | |
1784 /************************************************************************/ | |
1785 | |
1786 DEFUN ("category-table-p", Fcategory_table_p, 1, 1, 0, /* | |
444 | 1787 Return t if OBJECT is a category table. |
428 | 1788 A category table is a type of char table used for keeping track of |
1789 categories. Categories are used for classifying characters for use | |
1790 in regexps -- you can refer to a category rather than having to use | |
1791 a complicated [] expression (and category lookups are significantly | |
1792 faster). | |
1793 | |
1794 There are 95 different categories available, one for each printable | |
1795 character (including space) in the ASCII charset. Each category | |
1796 is designated by one such character, called a "category designator". | |
1797 They are specified in a regexp using the syntax "\\cX", where X is | |
1798 a category designator. | |
1799 | |
1800 A category table specifies, for each character, the categories that | |
1801 the character is in. Note that a character can be in more than one | |
1802 category. More specifically, a category table maps from a character | |
1803 to either the value nil (meaning the character is in no categories) | |
1804 or a 95-element bit vector, specifying for each of the 95 categories | |
1805 whether the character is in that category. | |
1806 | |
1807 Special Lisp functions are provided that abstract this, so you do not | |
1808 have to directly manipulate bit vectors. | |
1809 */ | |
444 | 1810 (object)) |
428 | 1811 { |
444 | 1812 return (CHAR_TABLEP (object) && |
1813 XCHAR_TABLE_TYPE (object) == CHAR_TABLE_TYPE_CATEGORY) ? | |
428 | 1814 Qt : Qnil; |
1815 } | |
1816 | |
1817 static Lisp_Object | |
444 | 1818 check_category_table (Lisp_Object object, Lisp_Object default_) |
428 | 1819 { |
444 | 1820 if (NILP (object)) |
1821 object = default_; | |
1822 while (NILP (Fcategory_table_p (object))) | |
1823 object = wrong_type_argument (Qcategory_table_p, object); | |
1824 return object; | |
428 | 1825 } |
1826 | |
1827 int | |
867 | 1828 check_category_char (Ichar ch, Lisp_Object table, |
647 | 1829 int designator, int not_p) |
428 | 1830 { |
1831 REGISTER Lisp_Object temp; | |
1832 if (NILP (Fcategory_table_p (table))) | |
563 | 1833 wtaerror ("Expected category table", table); |
826 | 1834 temp = get_char_table (ch, table); |
428 | 1835 if (NILP (temp)) |
458 | 1836 return not_p; |
428 | 1837 |
1838 designator -= ' '; | |
458 | 1839 return bit_vector_bit (XBIT_VECTOR (temp), designator) ? !not_p : not_p; |
428 | 1840 } |
1841 | |
1842 DEFUN ("check-category-at", Fcheck_category_at, 2, 4, 0, /* | |
444 | 1843 Return t if category of the character at POSITION includes DESIGNATOR. |
1844 Optional third arg BUFFER specifies which buffer to use, and defaults | |
1845 to the current buffer. | |
1846 Optional fourth arg CATEGORY-TABLE specifies the category table to | |
1847 use, and defaults to BUFFER's category table. | |
428 | 1848 */ |
444 | 1849 (position, designator, buffer, category_table)) |
428 | 1850 { |
1851 Lisp_Object ctbl; | |
867 | 1852 Ichar ch; |
647 | 1853 int des; |
428 | 1854 struct buffer *buf = decode_buffer (buffer, 0); |
1855 | |
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1856 CHECK_FIXNUM (position); |
428 | 1857 CHECK_CATEGORY_DESIGNATOR (designator); |
1858 des = XCHAR (designator); | |
788 | 1859 ctbl = check_category_table (category_table, buf->category_table); |
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1860 ch = BUF_FETCH_CHAR (buf, XFIXNUM (position)); |
428 | 1861 return check_category_char (ch, ctbl, des, 0) ? Qt : Qnil; |
1862 } | |
1863 | |
1864 DEFUN ("char-in-category-p", Fchar_in_category_p, 2, 3, 0, /* | |
788 | 1865 Return non-nil if category of CHARACTER includes DESIGNATOR. |
444 | 1866 Optional third arg CATEGORY-TABLE specifies the category table to use, |
788 | 1867 and defaults to the current buffer's category table. |
428 | 1868 */ |
444 | 1869 (character, designator, category_table)) |
428 | 1870 { |
1871 Lisp_Object ctbl; | |
867 | 1872 Ichar ch; |
647 | 1873 int des; |
428 | 1874 |
1875 CHECK_CATEGORY_DESIGNATOR (designator); | |
1876 des = XCHAR (designator); | |
444 | 1877 CHECK_CHAR (character); |
1878 ch = XCHAR (character); | |
788 | 1879 ctbl = check_category_table (category_table, current_buffer->category_table); |
428 | 1880 return check_category_char (ch, ctbl, des, 0) ? Qt : Qnil; |
1881 } | |
1882 | |
1883 DEFUN ("category-table", Fcategory_table, 0, 1, 0, /* | |
444 | 1884 Return BUFFER's current category table. |
1885 BUFFER defaults to the current buffer. | |
428 | 1886 */ |
1887 (buffer)) | |
1888 { | |
1889 return decode_buffer (buffer, 0)->category_table; | |
1890 } | |
1891 | |
1892 DEFUN ("standard-category-table", Fstandard_category_table, 0, 0, 0, /* | |
1893 Return the standard category table. | |
1894 This is the one used for new buffers. | |
1895 */ | |
1896 ()) | |
1897 { | |
1898 return Vstandard_category_table; | |
1899 } | |
1900 | |
1901 DEFUN ("copy-category-table", Fcopy_category_table, 0, 1, 0, /* | |
444 | 1902 Return a new category table which is a copy of CATEGORY-TABLE. |
1903 CATEGORY-TABLE defaults to the standard category table. | |
428 | 1904 */ |
444 | 1905 (category_table)) |
428 | 1906 { |
1907 if (NILP (Vstandard_category_table)) | |
1908 return Fmake_char_table (Qcategory); | |
1909 | |
444 | 1910 category_table = |
1911 check_category_table (category_table, Vstandard_category_table); | |
1912 return Fcopy_char_table (category_table); | |
428 | 1913 } |
1914 | |
1915 DEFUN ("set-category-table", Fset_category_table, 1, 2, 0, /* | |
444 | 1916 Select CATEGORY-TABLE as the new category table for BUFFER. |
428 | 1917 BUFFER defaults to the current buffer if omitted. |
1918 */ | |
444 | 1919 (category_table, buffer)) |
428 | 1920 { |
1921 struct buffer *buf = decode_buffer (buffer, 0); | |
444 | 1922 category_table = check_category_table (category_table, Qnil); |
1923 buf->category_table = category_table; | |
428 | 1924 /* Indicate that this buffer now has a specified category table. */ |
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1925 buf->local_var_flags |= XFIXNUM (buffer_local_flags.category_table); |
444 | 1926 return category_table; |
428 | 1927 } |
1928 | |
1929 DEFUN ("category-designator-p", Fcategory_designator_p, 1, 1, 0, /* | |
444 | 1930 Return t if OBJECT is a category designator (a char in the range ' ' to '~'). |
428 | 1931 */ |
444 | 1932 (object)) |
428 | 1933 { |
444 | 1934 return CATEGORY_DESIGNATORP (object) ? Qt : Qnil; |
428 | 1935 } |
1936 | |
1937 DEFUN ("category-table-value-p", Fcategory_table_value_p, 1, 1, 0, /* | |
444 | 1938 Return t if OBJECT is a category table value. |
428 | 1939 Valid values are nil or a bit vector of size 95. |
1940 */ | |
444 | 1941 (object)) |
428 | 1942 { |
444 | 1943 return CATEGORY_TABLE_VALUEP (object) ? Qt : Qnil; |
428 | 1944 } |
1945 | |
1946 | |
1947 #define CATEGORYP(x) \ | |
1948 (CHARP (x) && XCHAR (x) >= 0x20 && XCHAR (x) <= 0x7E) | |
1949 | |
826 | 1950 #define CATEGORY_SET(c) get_char_table (c, current_buffer->category_table) |
428 | 1951 |
1952 /* Return 1 if CATEGORY_SET contains CATEGORY, else return 0. | |
1953 The faster version of `!NILP (Faref (category_set, category))'. */ | |
1954 #define CATEGORY_MEMBER(category, category_set) \ | |
1955 (bit_vector_bit(XBIT_VECTOR (category_set), category - 32)) | |
1956 | |
1957 /* Return 1 if there is a word boundary between two word-constituent | |
1958 characters C1 and C2 if they appear in this order, else return 0. | |
1959 Use the macro WORD_BOUNDARY_P instead of calling this function | |
1960 directly. */ | |
1961 | |
1962 int | |
867 | 1963 word_boundary_p (Ichar c1, Ichar c2) |
428 | 1964 { |
1965 Lisp_Object category_set1, category_set2; | |
1966 Lisp_Object tail; | |
1967 int default_result; | |
1968 | |
1969 #if 0 | |
1970 if (COMPOSITE_CHAR_P (c1)) | |
1971 c1 = cmpchar_component (c1, 0, 1); | |
1972 if (COMPOSITE_CHAR_P (c2)) | |
1973 c2 = cmpchar_component (c2, 0, 1); | |
1974 #endif | |
1975 | |
867 | 1976 if (EQ (ichar_charset (c1), ichar_charset (c2))) |
428 | 1977 { |
1978 tail = Vword_separating_categories; | |
1979 default_result = 0; | |
1980 } | |
1981 else | |
1982 { | |
1983 tail = Vword_combining_categories; | |
1984 default_result = 1; | |
1985 } | |
1986 | |
1987 category_set1 = CATEGORY_SET (c1); | |
1988 if (NILP (category_set1)) | |
1989 return default_result; | |
1990 category_set2 = CATEGORY_SET (c2); | |
1991 if (NILP (category_set2)) | |
1992 return default_result; | |
1993 | |
853 | 1994 for (; CONSP (tail); tail = XCDR (tail)) |
428 | 1995 { |
853 | 1996 Lisp_Object elt = XCAR (tail); |
428 | 1997 |
1998 if (CONSP (elt) | |
853 | 1999 && CATEGORYP (XCAR (elt)) |
2000 && CATEGORYP (XCDR (elt)) | |
2001 && CATEGORY_MEMBER (XCHAR (XCAR (elt)), category_set1) | |
2002 && CATEGORY_MEMBER (XCHAR (XCDR (elt)), category_set2)) | |
428 | 2003 return !default_result; |
2004 } | |
2005 return default_result; | |
2006 } | |
2007 #endif /* MULE */ | |
2008 | |
2009 | |
2010 void | |
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2011 chartab_objects_create (void) |
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2012 { |
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2013 OBJECT_HAS_METHOD (char_table, print_preprocess); |
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2014 OBJECT_HAS_METHOD (char_table, nsubst_structures_descend); |
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2015 } |
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2016 |
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2017 void |
428 | 2018 syms_of_chartab (void) |
2019 { | |
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2020 INIT_LISP_OBJECT (char_table); |
442 | 2021 |
428 | 2022 #ifdef MULE |
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2023 INIT_LISP_OBJECT (char_table_entry); |
442 | 2024 |
563 | 2025 DEFSYMBOL (Qcategory_table_p); |
2026 DEFSYMBOL (Qcategory_designator_p); | |
2027 DEFSYMBOL (Qcategory_table_value_p); | |
428 | 2028 #endif /* MULE */ |
2029 | |
563 | 2030 DEFSYMBOL (Qchar_table); |
2031 DEFSYMBOL_MULTIWORD_PREDICATE (Qchar_tablep); | |
428 | 2032 |
2033 DEFSUBR (Fchar_table_p); | |
2034 DEFSUBR (Fchar_table_type_list); | |
2035 DEFSUBR (Fvalid_char_table_type_p); | |
2036 DEFSUBR (Fchar_table_type); | |
826 | 2037 DEFSUBR (Fchar_table_default); |
2038 DEFSUBR (Fset_char_table_default); | |
428 | 2039 DEFSUBR (Freset_char_table); |
2040 DEFSUBR (Fmake_char_table); | |
2041 DEFSUBR (Fcopy_char_table); | |
2042 DEFSUBR (Fget_char_table); | |
2043 DEFSUBR (Fget_range_char_table); | |
2044 DEFSUBR (Fvalid_char_table_value_p); | |
2045 DEFSUBR (Fcheck_valid_char_table_value); | |
2046 DEFSUBR (Fput_char_table); | |
826 | 2047 DEFSUBR (Fremove_char_table); |
428 | 2048 DEFSUBR (Fmap_char_table); |
2049 | |
2050 #ifdef MULE | |
2051 DEFSUBR (Fcategory_table_p); | |
2052 DEFSUBR (Fcategory_table); | |
2053 DEFSUBR (Fstandard_category_table); | |
2054 DEFSUBR (Fcopy_category_table); | |
2055 DEFSUBR (Fset_category_table); | |
2056 DEFSUBR (Fcheck_category_at); | |
2057 DEFSUBR (Fchar_in_category_p); | |
2058 DEFSUBR (Fcategory_designator_p); | |
2059 DEFSUBR (Fcategory_table_value_p); | |
2060 #endif /* MULE */ | |
2061 | |
2062 } | |
2063 | |
2064 void | |
2065 vars_of_chartab (void) | |
2066 { | |
2067 /* DO NOT staticpro this. It works just like Vweak_hash_tables. */ | |
2068 Vall_syntax_tables = Qnil; | |
452 | 2069 dump_add_weak_object_chain (&Vall_syntax_tables); |
428 | 2070 } |
2071 | |
2072 void | |
2073 structure_type_create_chartab (void) | |
2074 { | |
2075 struct structure_type *st; | |
2076 | |
2077 st = define_structure_type (Qchar_table, 0, chartab_instantiate); | |
2078 | |
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2079 #ifdef NEED_TO_HANDLE_21_4_CODE |
428 | 2080 define_structure_type_keyword (st, Qtype, chartab_type_validate); |
2081 define_structure_type_keyword (st, Qdata, chartab_data_validate); | |
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2082 #endif /* NEED_TO_HANDLE_21_4_CODE */ |
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2083 |
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2084 define_structure_type_keyword (st, Q_type, chartab_type_validate); |
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2085 define_structure_type_keyword (st, Q_data, chartab_data_validate); |
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2086 define_structure_type_keyword (st, Q_default_, chartab_default_validate); |
428 | 2087 } |
2088 | |
2089 void | |
2090 complex_vars_of_chartab (void) | |
2091 { | |
2092 #ifdef MULE | |
2093 /* Set this now, so first buffer creation can refer to it. */ | |
2094 /* Make it nil before calling copy-category-table | |
2095 so that copy-category-table will know not to try to copy from garbage */ | |
2096 Vstandard_category_table = Qnil; | |
2097 Vstandard_category_table = Fcopy_category_table (Qnil); | |
2098 staticpro (&Vstandard_category_table); | |
2099 | |
2100 DEFVAR_LISP ("word-combining-categories", &Vword_combining_categories /* | |
2101 List of pair (cons) of categories to determine word boundary. | |
2102 | |
2103 Emacs treats a sequence of word constituent characters as a single | |
2104 word (i.e. finds no word boundary between them) iff they belongs to | |
2105 the same charset. But, exceptions are allowed in the following cases. | |
2106 | |
444 | 2107 \(1) The case that characters are in different charsets is controlled |
428 | 2108 by the variable `word-combining-categories'. |
2109 | |
2110 Emacs finds no word boundary between characters of different charsets | |
2111 if they have categories matching some element of this list. | |
2112 | |
2113 More precisely, if an element of this list is a cons of category CAT1 | |
2114 and CAT2, and a multibyte character C1 which has CAT1 is followed by | |
2115 C2 which has CAT2, there's no word boundary between C1 and C2. | |
2116 | |
2117 For instance, to tell that ASCII characters and Latin-1 characters can | |
2118 form a single word, the element `(?l . ?l)' should be in this list | |
2119 because both characters have the category `l' (Latin characters). | |
2120 | |
444 | 2121 \(2) The case that character are in the same charset is controlled by |
428 | 2122 the variable `word-separating-categories'. |
2123 | |
2124 Emacs find a word boundary between characters of the same charset | |
2125 if they have categories matching some element of this list. | |
2126 | |
2127 More precisely, if an element of this list is a cons of category CAT1 | |
2128 and CAT2, and a multibyte character C1 which has CAT1 is followed by | |
2129 C2 which has CAT2, there's a word boundary between C1 and C2. | |
2130 | |
2131 For instance, to tell that there's a word boundary between Japanese | |
2132 Hiragana and Japanese Kanji (both are in the same charset), the | |
2133 element `(?H . ?C) should be in this list. | |
2134 */ ); | |
2135 | |
2136 Vword_combining_categories = Qnil; | |
2137 | |
2138 DEFVAR_LISP ("word-separating-categories", &Vword_separating_categories /* | |
2139 List of pair (cons) of categories to determine word boundary. | |
2140 See the documentation of the variable `word-combining-categories'. | |
2141 */ ); | |
2142 | |
2143 Vword_separating_categories = Qnil; | |
2144 #endif /* MULE */ | |
2145 } |