Commit | Line | Data |
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7942b8ae | 1 | /* Primitives for word-abbrev mode. |
4a2f9c6a | 2 | Copyright (C) 1985, 1986, 1993, 1996, 1998 Free Software Foundation, Inc. |
7942b8ae RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
c89475dc | 8 | the Free Software Foundation; either version 2, or (at your option) |
7942b8ae RS |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
7942b8ae RS |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
7942b8ae | 23 | #include <stdio.h> |
7942b8ae RS |
24 | #include "lisp.h" |
25 | #include "commands.h" | |
26 | #include "buffer.h" | |
27 | #include "window.h" | |
9192a027 | 28 | #include "charset.h" |
7169beb1 | 29 | #include "syntax.h" |
7942b8ae RS |
30 | |
31 | /* An abbrev table is an obarray. | |
32 | Each defined abbrev is represented by a symbol in that obarray | |
33 | whose print name is the abbreviation. | |
34 | The symbol's value is a string which is the expansion. | |
35 | If its function definition is non-nil, it is called | |
36 | after the expansion is done. | |
37 | The plist slot of the abbrev symbol is its usage count. */ | |
38 | ||
39 | /* List of all abbrev-table name symbols: | |
40 | symbols whose values are abbrev tables. */ | |
41 | ||
42 | Lisp_Object Vabbrev_table_name_list; | |
43 | ||
44 | /* The table of global abbrevs. These are in effect | |
45 | in any buffer in which abbrev mode is turned on. */ | |
46 | ||
47 | Lisp_Object Vglobal_abbrev_table; | |
48 | ||
49 | /* The local abbrev table used by default (in Fundamental Mode buffers) */ | |
50 | ||
51 | Lisp_Object Vfundamental_mode_abbrev_table; | |
52 | ||
53 | /* Set nonzero when an abbrev definition is changed */ | |
54 | ||
55 | int abbrevs_changed; | |
56 | ||
57 | int abbrev_all_caps; | |
58 | ||
59 | /* Non-nil => use this location as the start of abbrev to expand | |
60 | (rather than taking the word before point as the abbrev) */ | |
61 | ||
62 | Lisp_Object Vabbrev_start_location; | |
63 | ||
64 | /* Buffer that Vabbrev_start_location applies to */ | |
65 | Lisp_Object Vabbrev_start_location_buffer; | |
66 | ||
67 | /* The symbol representing the abbrev most recently expanded */ | |
68 | ||
69 | Lisp_Object Vlast_abbrev; | |
70 | ||
71 | /* A string for the actual text of the abbrev most recently expanded. | |
72 | This has more info than Vlast_abbrev since case is significant. */ | |
73 | ||
74 | Lisp_Object Vlast_abbrev_text; | |
75 | ||
76 | /* Character address of start of last abbrev expanded */ | |
77 | ||
78 | int last_abbrev_point; | |
79 | ||
dbd7a969 RS |
80 | /* Hook to run before expanding any abbrev. */ |
81 | ||
82 | Lisp_Object Vpre_abbrev_expand_hook, Qpre_abbrev_expand_hook; | |
7942b8ae RS |
83 | \f |
84 | DEFUN ("make-abbrev-table", Fmake_abbrev_table, Smake_abbrev_table, 0, 0, 0, | |
85 | "Create a new, empty abbrev table object.") | |
86 | () | |
87 | { | |
88 | return Fmake_vector (make_number (59), make_number (0)); | |
89 | } | |
90 | ||
91 | DEFUN ("clear-abbrev-table", Fclear_abbrev_table, Sclear_abbrev_table, 1, 1, 0, | |
92 | "Undefine all abbrevs in abbrev table TABLE, leaving it empty.") | |
93 | (table) | |
94 | Lisp_Object table; | |
95 | { | |
96 | int i, size; | |
97 | ||
98 | CHECK_VECTOR (table, 0); | |
99 | size = XVECTOR (table)->size; | |
100 | abbrevs_changed = 1; | |
101 | for (i = 0; i < size; i++) | |
102 | XVECTOR (table)->contents[i] = make_number (0); | |
103 | return Qnil; | |
104 | } | |
105 | \f | |
106 | DEFUN ("define-abbrev", Fdefine_abbrev, Sdefine_abbrev, 3, 5, 0, | |
107 | "Define an abbrev in TABLE named NAME, to expand to EXPANSION and call HOOK.\n\ | |
b7734773 RS |
108 | NAME must be a string.\n\ |
109 | EXPANSION should usually be a string.\n\ | |
7942b8ae RS |
110 | To undefine an abbrev, define it with EXPANSION = nil.\n\ |
111 | If HOOK is non-nil, it should be a function of no arguments;\n\ | |
b7734773 RS |
112 | it is called after EXPANSION is inserted.\n\ |
113 | If EXPANSION is not a string, the abbrev is a special one,\n\ | |
ea02eb56 RS |
114 | which does not expand in the usual way but only runs HOOK.\n\ |
115 | COUNT, if specified, initializes the abbrev's usage-count\n\ | |
116 | which is incremented each time the abbrev is used.") | |
7942b8ae RS |
117 | (table, name, expansion, hook, count) |
118 | Lisp_Object table, name, expansion, hook, count; | |
119 | { | |
120 | Lisp_Object sym, oexp, ohook, tem; | |
121 | CHECK_VECTOR (table, 0); | |
122 | CHECK_STRING (name, 1); | |
b7734773 | 123 | |
d427b66a | 124 | if (NILP (count)) |
7942b8ae RS |
125 | count = make_number (0); |
126 | else | |
127 | CHECK_NUMBER (count, 0); | |
128 | ||
129 | sym = Fintern (name, table); | |
130 | ||
131 | oexp = XSYMBOL (sym)->value; | |
132 | ohook = XSYMBOL (sym)->function; | |
133 | if (!((EQ (oexp, expansion) | |
09e82d7c | 134 | || (STRINGP (oexp) && STRINGP (expansion) |
d427b66a | 135 | && (tem = Fstring_equal (oexp, expansion), !NILP (tem)))) |
7942b8ae RS |
136 | && |
137 | (EQ (ohook, hook) | |
d427b66a | 138 | || (tem = Fequal (ohook, hook), !NILP (tem))))) |
7942b8ae RS |
139 | abbrevs_changed = 1; |
140 | ||
141 | Fset (sym, expansion); | |
142 | Ffset (sym, hook); | |
143 | Fsetplist (sym, count); | |
144 | ||
145 | return name; | |
146 | } | |
147 | ||
148 | DEFUN ("define-global-abbrev", Fdefine_global_abbrev, Sdefine_global_abbrev, 2, 2, | |
149 | "sDefine global abbrev: \nsExpansion for %s: ", | |
150 | "Define ABBREV as a global abbreviation for EXPANSION.") | |
78ce396a EN |
151 | (abbrev, expansion) |
152 | Lisp_Object abbrev, expansion; | |
7942b8ae | 153 | { |
78ce396a | 154 | Fdefine_abbrev (Vglobal_abbrev_table, Fdowncase (abbrev), |
7942b8ae | 155 | expansion, Qnil, make_number (0)); |
78ce396a | 156 | return abbrev; |
7942b8ae RS |
157 | } |
158 | ||
159 | DEFUN ("define-mode-abbrev", Fdefine_mode_abbrev, Sdefine_mode_abbrev, 2, 2, | |
160 | "sDefine mode abbrev: \nsExpansion for %s: ", | |
161 | "Define ABBREV as a mode-specific abbreviation for EXPANSION.") | |
78ce396a EN |
162 | (abbrev, expansion) |
163 | Lisp_Object abbrev, expansion; | |
7942b8ae | 164 | { |
d427b66a | 165 | if (NILP (current_buffer->abbrev_table)) |
7942b8ae RS |
166 | error ("Major mode has no abbrev table"); |
167 | ||
78ce396a | 168 | Fdefine_abbrev (current_buffer->abbrev_table, Fdowncase (abbrev), |
7942b8ae | 169 | expansion, Qnil, make_number (0)); |
78ce396a | 170 | return abbrev; |
7942b8ae RS |
171 | } |
172 | ||
173 | DEFUN ("abbrev-symbol", Fabbrev_symbol, Sabbrev_symbol, 1, 2, 0, | |
174 | "Return the symbol representing abbrev named ABBREV.\n\ | |
175 | This symbol's name is ABBREV, but it is not the canonical symbol of that name;\n\ | |
176 | it is interned in an abbrev-table rather than the normal obarray.\n\ | |
177 | The value is nil if that abbrev is not defined.\n\ | |
178 | Optional second arg TABLE is abbrev table to look it up in.\n\ | |
179 | The default is to try buffer's mode-specific abbrev table, then global table.") | |
180 | (abbrev, table) | |
181 | Lisp_Object abbrev, table; | |
182 | { | |
183 | Lisp_Object sym; | |
184 | CHECK_STRING (abbrev, 0); | |
d427b66a | 185 | if (!NILP (table)) |
7942b8ae RS |
186 | sym = Fintern_soft (abbrev, table); |
187 | else | |
188 | { | |
189 | sym = Qnil; | |
d427b66a | 190 | if (!NILP (current_buffer->abbrev_table)) |
7942b8ae | 191 | sym = Fintern_soft (abbrev, current_buffer->abbrev_table); |
d427b66a | 192 | if (NILP (XSYMBOL (sym)->value)) |
7942b8ae | 193 | sym = Qnil; |
d427b66a | 194 | if (NILP (sym)) |
7942b8ae RS |
195 | sym = Fintern_soft (abbrev, Vglobal_abbrev_table); |
196 | } | |
d427b66a | 197 | if (NILP (XSYMBOL (sym)->value)) return Qnil; |
7942b8ae RS |
198 | return sym; |
199 | } | |
200 | ||
201 | DEFUN ("abbrev-expansion", Fabbrev_expansion, Sabbrev_expansion, 1, 2, 0, | |
202 | "Return the string that ABBREV expands into in the current buffer.\n\ | |
203 | Optionally specify an abbrev table as second arg;\n\ | |
204 | then ABBREV is looked up in that table only.") | |
205 | (abbrev, table) | |
206 | Lisp_Object abbrev, table; | |
207 | { | |
208 | Lisp_Object sym; | |
209 | sym = Fabbrev_symbol (abbrev, table); | |
d427b66a | 210 | if (NILP (sym)) return sym; |
7942b8ae RS |
211 | return Fsymbol_value (sym); |
212 | } | |
213 | \f | |
214 | /* Expand the word before point, if it is an abbrev. | |
215 | Returns 1 if an expansion is done. */ | |
216 | ||
217 | DEFUN ("expand-abbrev", Fexpand_abbrev, Sexpand_abbrev, 0, 0, "", | |
218 | "Expand the abbrev before point, if there is an abbrev there.\n\ | |
219 | Effective when explicitly called even when `abbrev-mode' is nil.\n\ | |
f530ce27 | 220 | Returns the abbrev symbol, if expansion took place.") |
7942b8ae RS |
221 | () |
222 | { | |
223 | register char *buffer, *p; | |
aa406bac RS |
224 | int wordstart, wordend; |
225 | register int wordstart_byte, wordend_byte, idx; | |
7942b8ae RS |
226 | int whitecnt; |
227 | int uccount = 0, lccount = 0; | |
228 | register Lisp_Object sym; | |
229 | Lisp_Object expansion, hook, tem; | |
ba70da8f | 230 | Lisp_Object value; |
7942b8ae | 231 | |
f530ce27 RS |
232 | value = Qnil; |
233 | ||
d427b66a | 234 | if (!NILP (Vrun_hooks)) |
dbd7a969 RS |
235 | call1 (Vrun_hooks, Qpre_abbrev_expand_hook); |
236 | ||
dc7e2b30 | 237 | wordstart = 0; |
f530ce27 RS |
238 | if (!(BUFFERP (Vabbrev_start_location_buffer) |
239 | && XBUFFER (Vabbrev_start_location_buffer) == current_buffer)) | |
7942b8ae | 240 | Vabbrev_start_location = Qnil; |
d427b66a | 241 | if (!NILP (Vabbrev_start_location)) |
7942b8ae RS |
242 | { |
243 | tem = Vabbrev_start_location; | |
244 | CHECK_NUMBER_COERCE_MARKER (tem, 0); | |
245 | wordstart = XINT (tem); | |
246 | Vabbrev_start_location = Qnil; | |
dc7e2b30 KH |
247 | if (wordstart < BEGV || wordstart > ZV) |
248 | wordstart = 0; | |
aa406bac RS |
249 | if (wordstart && wordstart != ZV) |
250 | { | |
251 | wordstart_byte = CHAR_TO_BYTE (wordstart); | |
252 | if (FETCH_BYTE (wordstart_byte) == '-') | |
253 | del_range (wordstart, wordstart + 1); | |
254 | } | |
7942b8ae | 255 | } |
dc7e2b30 | 256 | if (!wordstart) |
6ec8bbd2 | 257 | wordstart = scan_words (PT, -1); |
7942b8ae RS |
258 | |
259 | if (!wordstart) | |
ba70da8f | 260 | return value; |
7942b8ae | 261 | |
aa406bac | 262 | wordstart_byte = CHAR_TO_BYTE (wordstart); |
7942b8ae RS |
263 | wordend = scan_words (wordstart, 1); |
264 | if (!wordend) | |
ba70da8f | 265 | return value; |
7942b8ae | 266 | |
6ec8bbd2 KH |
267 | if (wordend > PT) |
268 | wordend = PT; | |
aa406bac RS |
269 | |
270 | wordend_byte = CHAR_TO_BYTE (wordend); | |
6ec8bbd2 | 271 | whitecnt = PT - wordend; |
7942b8ae | 272 | if (wordend <= wordstart) |
ba70da8f | 273 | return value; |
7942b8ae | 274 | |
aa406bac | 275 | p = buffer = (char *) alloca (wordend_byte - wordstart_byte); |
7942b8ae | 276 | |
aa406bac | 277 | for (idx = wordstart_byte; idx < wordend_byte; idx++) |
7942b8ae | 278 | { |
aa406bac | 279 | /* ??? This loop needs to go by characters! */ |
fc44dfab | 280 | register int c = FETCH_BYTE (idx); |
7942b8ae RS |
281 | if (UPPERCASEP (c)) |
282 | c = DOWNCASE (c), uccount++; | |
283 | else if (! NOCASEP (c)) | |
284 | lccount++; | |
285 | *p++ = c; | |
286 | } | |
287 | ||
09e82d7c | 288 | if (VECTORP (current_buffer->abbrev_table)) |
fc412686 RS |
289 | sym = oblookup (current_buffer->abbrev_table, buffer, |
290 | wordend - wordstart, wordend_byte - wordstart_byte); | |
7942b8ae | 291 | else |
2a43e2bc | 292 | XSETFASTINT (sym, 0); |
09e82d7c | 293 | if (INTEGERP (sym) || NILP (XSYMBOL (sym)->value)) |
fc412686 RS |
294 | sym = oblookup (Vglobal_abbrev_table, buffer, |
295 | wordend - wordstart, wordend_byte - wordstart_byte); | |
09e82d7c | 296 | if (INTEGERP (sym) || NILP (XSYMBOL (sym)->value)) |
ba70da8f | 297 | return value; |
7942b8ae RS |
298 | |
299 | if (INTERACTIVE && !EQ (minibuf_window, selected_window)) | |
300 | { | |
aba686ed RS |
301 | /* Add an undo boundary, in case we are doing this for |
302 | a self-inserting command which has avoided making one so far. */ | |
7942b8ae RS |
303 | SET_PT (wordend); |
304 | Fundo_boundary (); | |
305 | } | |
b7734773 | 306 | |
7942b8ae RS |
307 | Vlast_abbrev_text |
308 | = Fbuffer_substring (make_number (wordstart), make_number (wordend)); | |
7942b8ae | 309 | |
b7734773 | 310 | /* Now sym is the abbrev symbol. */ |
7942b8ae | 311 | Vlast_abbrev = sym; |
f530ce27 | 312 | value = sym; |
7942b8ae RS |
313 | last_abbrev_point = wordstart; |
314 | ||
09e82d7c | 315 | if (INTEGERP (XSYMBOL (sym)->plist)) |
7942b8ae RS |
316 | XSETINT (XSYMBOL (sym)->plist, |
317 | XINT (XSYMBOL (sym)->plist) + 1); /* Increment use count */ | |
318 | ||
b7734773 RS |
319 | /* If this abbrev has an expansion, delete the abbrev |
320 | and insert the expansion. */ | |
7942b8ae | 321 | expansion = XSYMBOL (sym)->value; |
b7734773 | 322 | if (STRINGP (expansion)) |
7942b8ae | 323 | { |
b7734773 RS |
324 | SET_PT (wordstart); |
325 | ||
bc69581b | 326 | del_range_both (wordstart, wordstart_byte, wordend, wordend_byte, 1); |
b7734773 | 327 | |
fc412686 | 328 | insert_from_string (expansion, 0, 0, XSTRING (expansion)->size, |
fc932ac6 | 329 | STRING_BYTES (XSTRING (expansion)), 1); |
b7734773 RS |
330 | SET_PT (PT + whitecnt); |
331 | ||
332 | if (uccount && !lccount) | |
333 | { | |
334 | /* Abbrev was all caps */ | |
335 | /* If expansion is multiple words, normally capitalize each word */ | |
336 | /* This used to be if (!... && ... >= ...) Fcapitalize; else Fupcase | |
337 | but Megatest 68000 compiler can't handle that */ | |
338 | if (!abbrev_all_caps) | |
339 | if (scan_words (PT, -1) > scan_words (wordstart, 1)) | |
340 | { | |
341 | Fupcase_initials_region (make_number (wordstart), | |
342 | make_number (PT)); | |
343 | goto caped; | |
344 | } | |
345 | /* If expansion is one word, or if user says so, upcase it all. */ | |
346 | Fupcase_region (make_number (wordstart), make_number (PT)); | |
347 | caped: ; | |
348 | } | |
349 | else if (uccount) | |
350 | { | |
351 | /* Abbrev included some caps. Cap first initial of expansion */ | |
aa406bac | 352 | int pos = wordstart_byte; |
b7734773 RS |
353 | |
354 | /* Find the initial. */ | |
aa406bac RS |
355 | while (pos < PT_BYTE |
356 | && SYNTAX (*BUF_BYTE_ADDRESS (current_buffer, pos)) != Sword) | |
b7734773 RS |
357 | pos++; |
358 | ||
359 | /* Change just that. */ | |
aa406bac | 360 | pos = BYTE_TO_CHAR (pos); |
b7734773 RS |
361 | Fupcase_initials_region (make_number (pos), make_number (pos + 1)); |
362 | } | |
7942b8ae RS |
363 | } |
364 | ||
365 | hook = XSYMBOL (sym)->function; | |
d427b66a | 366 | if (!NILP (hook)) |
79d2af9c GM |
367 | { |
368 | Lisp_Object expanded, prop; | |
369 | ||
c87dbfd0 | 370 | /* If the abbrev has a hook function, run it. */ |
79d2af9c | 371 | expanded = call0 (hook); |
c87dbfd0 RS |
372 | |
373 | /* In addition, if the hook function is a symbol with a a | |
374 | non-nil `no-self-insert' property, let the value it returned | |
375 | specify whether we consider that an expansion took place. If | |
376 | it returns nil, no expansion has been done. */ | |
377 | ||
79d2af9c GM |
378 | if (SYMBOLP (hook) |
379 | && NILP (expanded) | |
380 | && (prop = Fget (hook, intern ("no-self-insert")), | |
381 | !NILP (prop))) | |
382 | value = Qnil; | |
383 | } | |
7942b8ae | 384 | |
f530ce27 | 385 | return value; |
7942b8ae RS |
386 | } |
387 | ||
388 | DEFUN ("unexpand-abbrev", Funexpand_abbrev, Sunexpand_abbrev, 0, 0, "", | |
389 | "Undo the expansion of the last abbrev that expanded.\n\ | |
390 | This differs from ordinary undo in that other editing done since then\n\ | |
391 | is not undone.") | |
392 | () | |
393 | { | |
6ec8bbd2 | 394 | int opoint = PT; |
7942b8ae RS |
395 | int adjust = 0; |
396 | if (last_abbrev_point < BEGV | |
397 | || last_abbrev_point > ZV) | |
398 | return Qnil; | |
399 | SET_PT (last_abbrev_point); | |
09e82d7c | 400 | if (STRINGP (Vlast_abbrev_text)) |
7942b8ae RS |
401 | { |
402 | /* This isn't correct if Vlast_abbrev->function was used | |
403 | to do the expansion */ | |
404 | Lisp_Object val; | |
aa406bac RS |
405 | int zv_before; |
406 | ||
4458687c | 407 | val = XSYMBOL (Vlast_abbrev)->value; |
09e82d7c | 408 | if (!STRINGP (val)) |
4458687c | 409 | error ("value of abbrev-symbol must be a string"); |
aa406bac | 410 | zv_before = ZV; |
fc932ac6 | 411 | del_range_byte (PT_BYTE, PT_BYTE + STRING_BYTES (XSTRING (val)), 1); |
0c287112 | 412 | /* Don't inherit properties here; just copy from old contents. */ |
fc412686 RS |
413 | insert_from_string (Vlast_abbrev_text, 0, 0, |
414 | XSTRING (Vlast_abbrev_text)->size, | |
fc932ac6 | 415 | STRING_BYTES (XSTRING (Vlast_abbrev_text)), 0); |
7942b8ae | 416 | Vlast_abbrev_text = Qnil; |
aa406bac RS |
417 | /* Total number of characters deleted. */ |
418 | adjust = ZV - zv_before; | |
7942b8ae | 419 | } |
57522629 | 420 | SET_PT (last_abbrev_point < opoint ? opoint + adjust : opoint); |
7942b8ae RS |
421 | return Qnil; |
422 | } | |
423 | \f | |
aa406bac | 424 | static void |
7942b8ae RS |
425 | write_abbrev (sym, stream) |
426 | Lisp_Object sym, stream; | |
427 | { | |
428 | Lisp_Object name; | |
d427b66a | 429 | if (NILP (XSYMBOL (sym)->value)) |
7942b8ae RS |
430 | return; |
431 | insert (" (", 5); | |
6520d056 | 432 | XSETSTRING (name, XSYMBOL (sym)->name); |
7942b8ae RS |
433 | Fprin1 (name, stream); |
434 | insert (" ", 1); | |
435 | Fprin1 (XSYMBOL (sym)->value, stream); | |
436 | insert (" ", 1); | |
437 | Fprin1 (XSYMBOL (sym)->function, stream); | |
438 | insert (" ", 1); | |
439 | Fprin1 (XSYMBOL (sym)->plist, stream); | |
440 | insert (")\n", 2); | |
441 | } | |
442 | ||
aa406bac | 443 | static void |
7942b8ae RS |
444 | describe_abbrev (sym, stream) |
445 | Lisp_Object sym, stream; | |
446 | { | |
447 | Lisp_Object one; | |
448 | ||
d427b66a | 449 | if (NILP (XSYMBOL (sym)->value)) |
7942b8ae RS |
450 | return; |
451 | one = make_number (1); | |
452 | Fprin1 (Fsymbol_name (sym), stream); | |
453 | Findent_to (make_number (15), one); | |
454 | Fprin1 (XSYMBOL (sym)->plist, stream); | |
455 | Findent_to (make_number (20), one); | |
456 | Fprin1 (XSYMBOL (sym)->value, stream); | |
d427b66a | 457 | if (!NILP (XSYMBOL (sym)->function)) |
7942b8ae RS |
458 | { |
459 | Findent_to (make_number (45), one); | |
460 | Fprin1 (XSYMBOL (sym)->function, stream); | |
461 | } | |
462 | Fterpri (stream); | |
463 | } | |
464 | ||
a0d76c27 EN |
465 | DEFUN ("insert-abbrev-table-description", Finsert_abbrev_table_description, |
466 | Sinsert_abbrev_table_description, 1, 2, 0, | |
7942b8ae RS |
467 | "Insert before point a full description of abbrev table named NAME.\n\ |
468 | NAME is a symbol whose value is an abbrev table.\n\ | |
78ce396a EN |
469 | If optional 2nd arg READABLE is non-nil, a human-readable description\n\ |
470 | is inserted. Otherwise the description is an expression,\n\ | |
7942b8ae RS |
471 | a call to `define-abbrev-table', which would\n\ |
472 | define the abbrev table NAME exactly as it is currently defined.") | |
473 | (name, readable) | |
474 | Lisp_Object name, readable; | |
475 | { | |
476 | Lisp_Object table; | |
477 | Lisp_Object stream; | |
478 | ||
479 | CHECK_SYMBOL (name, 0); | |
480 | table = Fsymbol_value (name); | |
481 | CHECK_VECTOR (table, 0); | |
482 | ||
6520d056 | 483 | XSETBUFFER (stream, current_buffer); |
7942b8ae | 484 | |
d427b66a | 485 | if (!NILP (readable)) |
7942b8ae RS |
486 | { |
487 | insert_string ("("); | |
488 | Fprin1 (name, stream); | |
489 | insert_string (")\n\n"); | |
490 | map_obarray (table, describe_abbrev, stream); | |
491 | insert_string ("\n\n"); | |
492 | } | |
493 | else | |
494 | { | |
495 | insert_string ("(define-abbrev-table '"); | |
496 | Fprin1 (name, stream); | |
497 | insert_string (" '(\n"); | |
498 | map_obarray (table, write_abbrev, stream); | |
499 | insert_string (" ))\n\n"); | |
500 | } | |
501 | ||
502 | return Qnil; | |
503 | } | |
504 | \f | |
505 | DEFUN ("define-abbrev-table", Fdefine_abbrev_table, Sdefine_abbrev_table, | |
506 | 2, 2, 0, | |
78ce396a | 507 | "Define TABLENAME (a symbol) as an abbrev table name.\n\ |
7942b8ae RS |
508 | Define abbrevs in it according to DEFINITIONS, which is a list of elements\n\ |
509 | of the form (ABBREVNAME EXPANSION HOOK USECOUNT).") | |
b9d613cc KH |
510 | (tablename, definitions) |
511 | Lisp_Object tablename, definitions; | |
7942b8ae RS |
512 | { |
513 | Lisp_Object name, exp, hook, count; | |
514 | Lisp_Object table, elt; | |
515 | ||
78ce396a EN |
516 | CHECK_SYMBOL (tablename, 0); |
517 | table = Fboundp (tablename); | |
518 | if (NILP (table) || (table = Fsymbol_value (tablename), NILP (table))) | |
7942b8ae RS |
519 | { |
520 | table = Fmake_abbrev_table (); | |
78ce396a | 521 | Fset (tablename, table); |
b9d613cc | 522 | Vabbrev_table_name_list = Fcons (tablename, Vabbrev_table_name_list); |
7942b8ae RS |
523 | } |
524 | CHECK_VECTOR (table, 0); | |
525 | ||
b9d613cc | 526 | for (; !NILP (definitions); definitions = Fcdr (definitions)) |
7942b8ae | 527 | { |
78ce396a | 528 | elt = Fcar (definitions); |
0292bcb1 JB |
529 | name = Fcar (elt); elt = Fcdr (elt); |
530 | exp = Fcar (elt); elt = Fcdr (elt); | |
531 | hook = Fcar (elt); elt = Fcdr (elt); | |
7942b8ae RS |
532 | count = Fcar (elt); |
533 | Fdefine_abbrev (table, name, exp, hook, count); | |
534 | } | |
535 | return Qnil; | |
536 | } | |
537 | \f | |
dfcf069d | 538 | void |
7942b8ae RS |
539 | syms_of_abbrev () |
540 | { | |
541 | DEFVAR_LISP ("abbrev-table-name-list", &Vabbrev_table_name_list, | |
542 | "List of symbols whose values are abbrev tables."); | |
543 | Vabbrev_table_name_list = Fcons (intern ("fundamental-mode-abbrev-table"), | |
544 | Fcons (intern ("global-abbrev-table"), | |
545 | Qnil)); | |
546 | ||
547 | DEFVAR_LISP ("global-abbrev-table", &Vglobal_abbrev_table, | |
548 | "The abbrev table whose abbrevs affect all buffers.\n\ | |
549 | Each buffer may also have a local abbrev table.\n\ | |
550 | If it does, the local table overrides the global one\n\ | |
551 | for any particular abbrev defined in both."); | |
552 | Vglobal_abbrev_table = Fmake_abbrev_table (); | |
553 | ||
554 | DEFVAR_LISP ("fundamental-mode-abbrev-table", &Vfundamental_mode_abbrev_table, | |
555 | "The abbrev table of mode-specific abbrevs for Fundamental Mode."); | |
556 | Vfundamental_mode_abbrev_table = Fmake_abbrev_table (); | |
557 | current_buffer->abbrev_table = Vfundamental_mode_abbrev_table; | |
c8bb8167 | 558 | buffer_defaults.abbrev_table = Vfundamental_mode_abbrev_table; |
7942b8ae RS |
559 | |
560 | DEFVAR_LISP ("last-abbrev", &Vlast_abbrev, | |
561 | "The abbrev-symbol of the last abbrev expanded. See `abbrev-symbol'."); | |
562 | ||
563 | DEFVAR_LISP ("last-abbrev-text", &Vlast_abbrev_text, | |
564 | "The exact text of the last abbrev expanded.\n\ | |
565 | nil if the abbrev has already been unexpanded."); | |
566 | ||
567 | DEFVAR_INT ("last-abbrev-location", &last_abbrev_point, | |
568 | "The location of the start of the last abbrev expanded."); | |
569 | ||
570 | Vlast_abbrev = Qnil; | |
571 | Vlast_abbrev_text = Qnil; | |
572 | last_abbrev_point = 0; | |
573 | ||
574 | DEFVAR_LISP ("abbrev-start-location", &Vabbrev_start_location, | |
575 | "Buffer position for `expand-abbrev' to use as the start of the abbrev.\n\ | |
576 | nil means use the word before point as the abbrev.\n\ | |
577 | Calling `expand-abbrev' sets this to nil."); | |
578 | Vabbrev_start_location = Qnil; | |
579 | ||
580 | DEFVAR_LISP ("abbrev-start-location-buffer", &Vabbrev_start_location_buffer, | |
581 | "Buffer that `abbrev-start-location' has been set for.\n\ | |
582 | Trying to expand an abbrev in any other buffer clears `abbrev-start-location'."); | |
583 | Vabbrev_start_location_buffer = Qnil; | |
584 | ||
c89475dc | 585 | DEFVAR_PER_BUFFER ("local-abbrev-table", ¤t_buffer->abbrev_table, Qnil, |
7942b8ae RS |
586 | "Local (mode-specific) abbrev table of current buffer."); |
587 | ||
588 | DEFVAR_BOOL ("abbrevs-changed", &abbrevs_changed, | |
589 | "Set non-nil by defining or altering any word abbrevs.\n\ | |
590 | This causes `save-some-buffers' to offer to save the abbrevs."); | |
591 | abbrevs_changed = 0; | |
592 | ||
593 | DEFVAR_BOOL ("abbrev-all-caps", &abbrev_all_caps, | |
594 | "*Set non-nil means expand multi-word abbrevs all caps if abbrev was so."); | |
595 | abbrev_all_caps = 0; | |
596 | ||
dbd7a969 RS |
597 | DEFVAR_LISP ("pre-abbrev-expand-hook", &Vpre_abbrev_expand_hook, |
598 | "Function or functions to be called before abbrev expansion is done.\n\ | |
599 | This is the first thing that `expand-abbrev' does, and so this may change\n\ | |
600 | the current abbrev table before abbrev lookup happens."); | |
601 | Vpre_abbrev_expand_hook = Qnil; | |
602 | Qpre_abbrev_expand_hook = intern ("pre-abbrev-expand-hook"); | |
603 | staticpro (&Qpre_abbrev_expand_hook); | |
604 | ||
7942b8ae RS |
605 | defsubr (&Smake_abbrev_table); |
606 | defsubr (&Sclear_abbrev_table); | |
607 | defsubr (&Sdefine_abbrev); | |
608 | defsubr (&Sdefine_global_abbrev); | |
609 | defsubr (&Sdefine_mode_abbrev); | |
610 | defsubr (&Sabbrev_expansion); | |
611 | defsubr (&Sabbrev_symbol); | |
612 | defsubr (&Sexpand_abbrev); | |
613 | defsubr (&Sunexpand_abbrev); | |
614 | defsubr (&Sinsert_abbrev_table_description); | |
615 | defsubr (&Sdefine_abbrev_table); | |
616 | } |