Commit | Line | Data |
---|---|---|
f927c5ae | 1 | /* Minibuffer input and completion. |
68313ed8 | 2 | Copyright (C) 1985, 1986, 93, 94, 95, 1996 Free Software Foundation, Inc. |
f927c5ae JB |
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 | |
ffd56f97 | 8 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
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. */ | |
f927c5ae JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
f927c5ae JB |
23 | #include "lisp.h" |
24 | #include "commands.h" | |
25 | #include "buffer.h" | |
d50a3d2a | 26 | #include "charset.h" |
f927c5ae | 27 | #include "dispextern.h" |
ff11dfa1 | 28 | #include "frame.h" |
f927c5ae JB |
29 | #include "window.h" |
30 | #include "syntax.h" | |
5221fd63 | 31 | #include "keyboard.h" |
f927c5ae JB |
32 | |
33 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
34 | ||
a4e71d81 KH |
35 | extern int quit_char; |
36 | ||
f927c5ae | 37 | /* List of buffers for use as minibuffers. |
4d04c1f1 KH |
38 | The first element of the list is used for the outermost minibuffer |
39 | invocation, the next element is used for a recursive minibuffer | |
40 | invocation, etc. The list is extended at the end as deeper | |
41 | minibuffer recursions are encountered. */ | |
f927c5ae JB |
42 | Lisp_Object Vminibuffer_list; |
43 | ||
4d04c1f1 KH |
44 | /* Data to remember during recursive minibuffer invocations */ |
45 | Lisp_Object minibuf_save_list; | |
f927c5ae JB |
46 | |
47 | /* Depth in minibuffer invocations. */ | |
48 | int minibuf_level; | |
49 | ||
77aa8edf | 50 | /* Nonzero means display completion help for invalid input. */ |
f927c5ae JB |
51 | int auto_help; |
52 | ||
77aa8edf RS |
53 | /* The maximum length of a minibuffer history. */ |
54 | Lisp_Object Qhistory_length, Vhistory_length; | |
55 | ||
b278606c | 56 | /* Fread_minibuffer leaves the input here as a string. */ |
f927c5ae JB |
57 | Lisp_Object last_minibuf_string; |
58 | ||
59 | /* Nonzero means let functions called when within a minibuffer | |
60 | invoke recursive minibuffers (to read arguments, or whatever) */ | |
61 | int enable_recursive_minibuffers; | |
62 | ||
c3421833 RS |
63 | /* Nonzero means don't ignore text properties |
64 | in Fread_from_minibuffer. */ | |
65 | int minibuffer_allow_text_properties; | |
66 | ||
f927c5ae JB |
67 | /* help-form is bound to this while in the minibuffer. */ |
68 | ||
69 | Lisp_Object Vminibuffer_help_form; | |
70 | ||
770970cb RS |
71 | /* Variable which is the history list to add minibuffer values to. */ |
72 | ||
73 | Lisp_Object Vminibuffer_history_variable; | |
74 | ||
75 | /* Current position in the history list (adjusted by M-n and M-p). */ | |
76 | ||
77 | Lisp_Object Vminibuffer_history_position; | |
78 | ||
79 | Lisp_Object Qminibuffer_history; | |
80 | ||
719b4a40 RS |
81 | Lisp_Object Qread_file_name_internal; |
82 | ||
177aecf9 | 83 | /* Normal hooks for entry to and exit from minibuffer. */ |
5c781212 RS |
84 | |
85 | Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook; | |
177aecf9 | 86 | Lisp_Object Qminibuffer_exit_hook, Vminibuffer_exit_hook; |
5c781212 | 87 | |
f927c5ae JB |
88 | /* Nonzero means completion ignores case. */ |
89 | ||
90 | int completion_ignore_case; | |
91 | ||
42006772 RS |
92 | /* List of regexps that should restrict possible completions. */ |
93 | ||
94 | Lisp_Object Vcompletion_regexp_list; | |
95 | ||
6a9ee000 RS |
96 | /* Nonzero means raise the minibuffer frame when the minibuffer |
97 | is entered. */ | |
98 | ||
99 | int minibuffer_auto_raise; | |
100 | ||
f927c5ae JB |
101 | /* If last completion attempt reported "Complete but not unique" |
102 | then this is the string completed then; otherwise this is nil. */ | |
103 | ||
104 | static Lisp_Object last_exact_completion; | |
105 | ||
106 | Lisp_Object Quser_variable_p; | |
2cb6da5c | 107 | |
e5d4686b RS |
108 | Lisp_Object Qminibuffer_default; |
109 | ||
2cb6da5c RS |
110 | /* Non-nil means it is the window for C-M-v to scroll |
111 | when the minibuffer is selected. */ | |
112 | extern Lisp_Object Vminibuf_scroll_window; | |
30e13e56 RS |
113 | |
114 | extern Lisp_Object Voverriding_local_map; | |
f927c5ae | 115 | \f |
89fdc4a0 KH |
116 | /* Put minibuf on currently selected frame's minibuffer. |
117 | We do this whenever the user starts a new minibuffer | |
118 | or when a minibuffer exits. */ | |
119 | ||
120 | void | |
121 | choose_minibuf_frame () | |
122 | { | |
123 | if (selected_frame != 0 | |
124 | && !EQ (minibuf_window, selected_frame->minibuffer_window)) | |
125 | { | |
126 | /* I don't think that any frames may validly have a null minibuffer | |
127 | window anymore. */ | |
128 | if (NILP (selected_frame->minibuffer_window)) | |
129 | abort (); | |
130 | ||
131 | Fset_window_buffer (selected_frame->minibuffer_window, | |
132 | XWINDOW (minibuf_window)->buffer); | |
133 | minibuf_window = selected_frame->minibuffer_window; | |
134 | } | |
914860c2 RS |
135 | |
136 | /* Make sure no other frame has a minibuffer as its selected window, | |
137 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
138 | confusing. Only allow the selected frame to do this, |
139 | and that only if the minibuffer is active. */ | |
914860c2 RS |
140 | { |
141 | Lisp_Object tail, frame; | |
142 | ||
143 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 RS |
144 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
145 | && !(XFRAME (frame) == selected_frame | |
146 | && minibuf_level > 0)) | |
914860c2 RS |
147 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
148 | } | |
89fdc4a0 | 149 | } |
68313ed8 | 150 | |
0c94f256 RS |
151 | Lisp_Object |
152 | choose_minibuf_frame_1 (ignore) | |
153 | Lisp_Object ignore; | |
154 | { | |
155 | choose_minibuf_frame (); | |
156 | return Qnil; | |
157 | } | |
158 | ||
68313ed8 RS |
159 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
160 | Sset_minibuffer_window, 1, 1, 0, | |
161 | "Specify which minibuffer window to use for the minibuffer.\n\ | |
162 | This effects where the minibuffer is displayed if you put text in it\n\ | |
163 | without invoking the usual minibuffer commands.") | |
164 | (window) | |
165 | Lisp_Object window; | |
166 | { | |
167 | CHECK_WINDOW (window, 1); | |
168 | if (! MINI_WINDOW_P (XWINDOW (window))) | |
169 | error ("Window is not a minibuffer window"); | |
170 | ||
171 | minibuf_window = window; | |
172 | ||
173 | return window; | |
174 | } | |
175 | ||
89fdc4a0 | 176 | \f |
f927c5ae JB |
177 | /* Actual minibuffer invocation. */ |
178 | ||
e5d4686b | 179 | static void read_minibuf_unwind (); |
f927c5ae | 180 | Lisp_Object get_minibuffer (); |
e5d4686b | 181 | static Lisp_Object read_minibuf (); |
f927c5ae | 182 | |
770970cb | 183 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
85b5fe07 | 184 | (a string), putting point minus BACKUP_N chars from the end of INITIAL, |
770970cb | 185 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 186 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
187 | |
188 | Normally return the result as a string (the text that was read), | |
3ab14176 | 189 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
190 | If HISTVAR is given, save the value read on that history only if it doesn't |
191 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 192 | the list as the string that was read. |
770970cb | 193 | |
c3421833 RS |
194 | DEFALT specifies te default value for the sake of history commands. |
195 | ||
196 | If ALLOW_PROPS is nonzero, we do not throw away text properties. */ | |
e5d4686b RS |
197 | |
198 | static Lisp_Object | |
199 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
c3421833 | 200 | histvar, histpos, defalt, allow_props) |
f927c5ae JB |
201 | Lisp_Object map; |
202 | Lisp_Object initial; | |
203 | Lisp_Object prompt; | |
5061d9c3 | 204 | Lisp_Object backup_n; |
f927c5ae | 205 | int expflag; |
770970cb RS |
206 | Lisp_Object histvar; |
207 | Lisp_Object histpos; | |
e5d4686b | 208 | Lisp_Object defalt; |
f927c5ae | 209 | { |
00a34088 | 210 | Lisp_Object val; |
f927c5ae | 211 | int count = specpdl_ptr - specpdl; |
4f69d8f6 | 212 | Lisp_Object mini_frame, ambient_dir, minibuffer; |
57ceaa8a | 213 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
00a34088 | 214 | |
e5d4686b RS |
215 | specbind (Qminibuffer_default, defalt); |
216 | ||
08f7d623 | 217 | single_kboard_state (); |
718d3251 | 218 | |
00a34088 | 219 | val = Qnil; |
57ceaa8a RS |
220 | ambient_dir = current_buffer->directory; |
221 | ||
00a34088 RS |
222 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
223 | store them away before we can GC. Don't need to protect | |
224 | BACKUP_N because we use the value only if it is an integer. */ | |
57ceaa8a | 225 | GCPRO4 (map, initial, val, ambient_dir); |
f927c5ae | 226 | |
7510b296 | 227 | if (!STRINGP (prompt)) |
f927c5ae JB |
228 | prompt = build_string (""); |
229 | ||
f927c5ae | 230 | if (!enable_recursive_minibuffers |
be15a518 RS |
231 | && minibuf_level > 0) |
232 | { | |
233 | if (EQ (selected_window, minibuf_window)) | |
234 | error ("Command attempted to use minibuffer while in minibuffer"); | |
235 | else | |
236 | /* If we're in another window, cancel the minibuffer that's active. */ | |
237 | Fthrow (Qexit, | |
238 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
239 | } | |
f927c5ae | 240 | |
748dc60a | 241 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 242 | |
c5b6b680 RS |
243 | choose_minibuf_frame (); |
244 | ||
0c94f256 RS |
245 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
246 | ||
f927c5ae | 247 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
248 | Fcurrent_window_configuration (Qnil)); |
249 | ||
ff11dfa1 JB |
250 | /* If the minibuffer window is on a different frame, save that |
251 | frame's configuration too. */ | |
75f00e72 | 252 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
ff11dfa1 | 253 | if (XFRAME (mini_frame) != selected_frame) |
5061d9c3 RS |
254 | record_unwind_protect (Fset_window_configuration, |
255 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
256 | |
257 | /* If the minibuffer is on an iconified or invisible frame, | |
258 | make it visible now. */ | |
259 | Fmake_frame_visible (mini_frame); | |
260 | ||
6a9ee000 RS |
261 | if (minibuffer_auto_raise) |
262 | Fraise_frame (mini_frame); | |
f927c5ae | 263 | |
748dc60a RS |
264 | /* We have to do this after saving the window configuration |
265 | since that is what restores the current buffer. */ | |
266 | ||
267 | /* Arrange to restore a number of minibuffer-related variables. | |
268 | We could bind each variable separately, but that would use lots of | |
269 | specpdl slots. */ | |
270 | minibuf_save_list | |
271 | = Fcons (Voverriding_local_map, | |
272 | Fcons (minibuf_window, minibuf_save_list)); | |
273 | minibuf_save_list | |
274 | = Fcons (minibuf_prompt, | |
275 | Fcons (make_number (minibuf_prompt_width), | |
276 | Fcons (Vhelp_form, | |
277 | Fcons (Vcurrent_prefix_arg, | |
278 | Fcons (Vminibuffer_history_position, | |
279 | Fcons (Vminibuffer_history_variable, | |
280 | minibuf_save_list)))))); | |
281 | ||
282 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
283 | minibuf_level++; | |
284 | ||
285 | /* Now that we can restore all those variables, start changing them. */ | |
286 | ||
287 | minibuf_prompt_width = 0; /* xdisp.c puts in the right value. */ | |
288 | minibuf_prompt = Fcopy_sequence (prompt); | |
289 | Vminibuffer_history_position = histpos; | |
290 | Vminibuffer_history_variable = histvar; | |
291 | Vhelp_form = Vminibuffer_help_form; | |
292 | ||
293 | /* Switch to the minibuffer. */ | |
294 | ||
4f69d8f6 RS |
295 | minibuffer = get_minibuffer (minibuf_level); |
296 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
297 | |
298 | /* The current buffer's default directory is usually the right thing | |
299 | for our minibuffer here. However, if you're typing a command at | |
300 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
301 | the current_buffer, so reset_buffer leaves buf's default | |
302 | directory unchanged. This is a bummer when you've just started | |
303 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
304 | you think of something better to do? Find another buffer with a | |
305 | better directory, and use that one instead. */ | |
748dc60a RS |
306 | if (STRINGP (ambient_dir)) |
307 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
308 | else |
309 | { | |
310 | Lisp_Object buf_list; | |
311 | ||
312 | for (buf_list = Vbuffer_alist; | |
313 | CONSP (buf_list); | |
314 | buf_list = XCONS (buf_list)->cdr) | |
315 | { | |
1e62748e | 316 | Lisp_Object other_buf; |
64a3a3c0 | 317 | |
1e62748e | 318 | other_buf = XCONS (XCONS (buf_list)->car)->cdr; |
7510b296 | 319 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
320 | { |
321 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
322 | break; | |
323 | } | |
324 | } | |
325 | } | |
326 | ||
0abbff13 KH |
327 | if (XFRAME (mini_frame) != selected_frame) |
328 | Fredirect_frame_focus (Fselected_frame (), mini_frame); | |
43bad991 | 329 | |
f927c5ae JB |
330 | Vminibuf_scroll_window = selected_window; |
331 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); | |
f927c5ae | 332 | Fselect_window (minibuf_window); |
5a866662 | 333 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 334 | |
748dc60a RS |
335 | Fmake_local_variable (Qprint_escape_newlines); |
336 | print_escape_newlines = 1; | |
337 | ||
338 | /* Erase the buffer. */ | |
59115a22 RS |
339 | { |
340 | int count1 = specpdl_ptr - specpdl; | |
341 | specbind (Qinhibit_read_only, Qt); | |
342 | Ferase_buffer (); | |
343 | unbind_to (count1, Qnil); | |
344 | } | |
345 | ||
748dc60a | 346 | /* Put in the initial input. */ |
56a98455 | 347 | if (!NILP (initial)) |
f927c5ae JB |
348 | { |
349 | Finsert (1, &initial); | |
7510b296 | 350 | if (!NILP (backup_n) && INTEGERP (backup_n)) |
d50a3d2a | 351 | Fgoto_char (make_number (PT + XFASTINT (backup_n))); |
f927c5ae JB |
352 | } |
353 | ||
f927c5ae | 354 | echo_area_glyphs = 0; |
73168c8b RS |
355 | /* This is in case the minibuffer-setup-hook calls Fsit_for. */ |
356 | previous_echo_glyphs = 0; | |
f927c5ae | 357 | |
f927c5ae JB |
358 | current_buffer->keymap = map; |
359 | ||
5c781212 RS |
360 | /* Run our hook, but not if it is empty. |
361 | (run-hooks would do nothing if it is empty, | |
748dc60a | 362 | but it's important to save time here in the usual case). */ |
92d3b06e RS |
363 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
364 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
365 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
366 | ||
f927c5ae JB |
367 | /* ??? MCC did redraw_screen here if switching screens. */ |
368 | recursive_edit_1 (); | |
369 | ||
370 | /* If cursor is on the minibuffer line, | |
371 | show the user we have exited by putting it in column 0. */ | |
ff11dfa1 | 372 | if ((FRAME_CURSOR_Y (selected_frame) |
f927c5ae JB |
373 | >= XFASTINT (XWINDOW (minibuf_window)->top)) |
374 | && !noninteractive) | |
375 | { | |
85462999 RS |
376 | FRAME_CURSOR_X (selected_frame) |
377 | = FRAME_LEFT_SCROLL_BAR_WIDTH (selected_frame); | |
ff11dfa1 | 378 | update_frame (selected_frame, 1, 1); |
f927c5ae JB |
379 | } |
380 | ||
c3421833 | 381 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 382 | Fset_buffer (minibuffer); |
c3421833 | 383 | val = make_buffer_string (1, Z, allow_props); |
5bb8cce1 | 384 | #if 0 /* make_buffer_string should handle the gap. */ |
f927c5ae | 385 | bcopy (GAP_END_ADDR, XSTRING (val)->data + GPT - BEG, Z - GPT); |
5bb8cce1 | 386 | #endif |
770970cb | 387 | |
b278606c BF |
388 | /* VAL is the string of minibuffer text. */ |
389 | last_minibuf_string = val; | |
390 | ||
3ab14176 | 391 | /* Add the value to the appropriate history list unless it is empty. */ |
9f6131cf | 392 | if (XSTRING (val)->size != 0 |
3ab14176 KH |
393 | && SYMBOLP (Vminibuffer_history_variable) |
394 | && ! EQ (XSYMBOL (Vminibuffer_history_variable)->value, Qunbound)) | |
395 | { | |
396 | /* If the caller wanted to save the value read on a history list, | |
397 | then do so if the value is not already the front of the list. */ | |
398 | Lisp_Object histval; | |
399 | histval = Fsymbol_value (Vminibuffer_history_variable); | |
400 | ||
401 | /* The value of the history variable must be a cons or nil. Other | |
402 | values are unacceptable. We silently ignore these values. */ | |
403 | if (NILP (histval) | |
9f6131cf RS |
404 | || (CONSP (histval) |
405 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
406 | { |
407 | Lisp_Object length; | |
408 | ||
409 | histval = Fcons (last_minibuf_string, histval); | |
410 | Fset (Vminibuffer_history_variable, histval); | |
411 | ||
412 | /* Truncate if requested. */ | |
413 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
414 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
415 | if (INTEGERP (length)) |
416 | { | |
417 | if (XINT (length) <= 0) | |
418 | Fset (Vminibuffer_history_variable, Qnil); | |
419 | else | |
420 | { | |
421 | Lisp_Object temp; | |
422 | ||
423 | temp = Fnthcdr (Fsub1 (length), histval); | |
424 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
425 | } | |
426 | } | |
77aa8edf | 427 | } |
9f6131cf RS |
428 | } |
429 | ||
430 | /* If Lisp form desired instead of string, parse it. */ | |
431 | if (expflag) | |
432 | { | |
433 | Lisp_Object expr_and_pos; | |
434 | unsigned char *p; | |
435 | ||
436 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); | |
437 | /* Ignore trailing whitespace; any other trailing junk is an error. */ | |
438 | for (p = XSTRING (val)->data + XINT (Fcdr (expr_and_pos)); *p; p++) | |
439 | if (*p != ' ' && *p != '\t' && *p != '\n') | |
440 | error ("Trailing garbage following expression"); | |
441 | val = Fcar (expr_and_pos); | |
3ab14176 KH |
442 | } |
443 | ||
00a34088 RS |
444 | /* The appropriate frame will get selected |
445 | in set-window-configuration. */ | |
446 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
447 | } |
448 | ||
449 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
450 | depth = 0 is the lowest allowed argument, and that is the value | |
451 | used for nonrecursive minibuffer invocations */ | |
452 | ||
453 | Lisp_Object | |
454 | get_minibuffer (depth) | |
455 | int depth; | |
456 | { | |
457 | Lisp_Object tail, num, buf; | |
9f6c23bc | 458 | char name[24]; |
f927c5ae JB |
459 | extern Lisp_Object nconc2 (); |
460 | ||
5a866662 | 461 | XSETFASTINT (num, depth); |
f927c5ae | 462 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 463 | if (NILP (tail)) |
f927c5ae JB |
464 | { |
465 | tail = Fcons (Qnil, Qnil); | |
466 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
467 | } | |
468 | buf = Fcar (tail); | |
56a98455 | 469 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
470 | { |
471 | sprintf (name, " *Minibuf-%d*", depth); | |
472 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
473 | |
474 | /* Although the buffer's name starts with a space, undo should be | |
475 | enabled in it. */ | |
476 | Fbuffer_enable_undo (buf); | |
477 | ||
f927c5ae JB |
478 | XCONS (tail)->car = buf; |
479 | } | |
480 | else | |
5956f71d | 481 | { |
6b3faad8 RS |
482 | int count = specpdl_ptr - specpdl; |
483 | ||
5956f71d | 484 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
485 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
486 | Fset_buffer (buf); | |
487 | Fkill_all_local_variables (); | |
488 | unbind_to (count, Qnil); | |
5956f71d | 489 | } |
64a3a3c0 | 490 | |
f927c5ae JB |
491 | return buf; |
492 | } | |
493 | ||
494 | /* This function is called on exiting minibuffer, whether normally or not, | |
495 | and it restores the current window, buffer, etc. */ | |
496 | ||
e5d4686b | 497 | static void |
43bad991 JB |
498 | read_minibuf_unwind (data) |
499 | Lisp_Object data; | |
f927c5ae | 500 | { |
c24e1160 | 501 | Lisp_Object old_deactivate_mark; |
59115a22 | 502 | Lisp_Object window; |
c24e1160 | 503 | |
0a1dd1c5 RS |
504 | /* We are exiting the minibuffer one way or the other, |
505 | so run the hook. */ | |
506 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
507 | && !NILP (Vrun_hooks)) | |
060ffec1 | 508 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 509 | |
f927c5ae | 510 | /* If this was a recursive minibuffer, |
59115a22 | 511 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 512 | minibuf_level--; |
f927c5ae | 513 | |
59115a22 RS |
514 | window = minibuf_window; |
515 | /* To keep things predictable, in case it matters, let's be in the minibuffer | |
516 | when we reset the relevant variables. */ | |
517 | Fset_buffer (XWINDOW (window)->buffer); | |
518 | ||
519 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
520 | minibuf_prompt = Fcar (minibuf_save_list); |
521 | minibuf_save_list = Fcdr (minibuf_save_list); | |
522 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
523 | minibuf_save_list = Fcdr (minibuf_save_list); | |
524 | Vhelp_form = Fcar (minibuf_save_list); | |
525 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 526 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
527 | minibuf_save_list = Fcdr (minibuf_save_list); |
528 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
529 | minibuf_save_list = Fcdr (minibuf_save_list); | |
530 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
531 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 532 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 533 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
534 | #if 0 |
535 | temp = Fcar (minibuf_save_list); | |
536 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
537 | minibuf_window = temp; | |
538 | #endif | |
30e13e56 | 539 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
540 | |
541 | /* Erase the minibuffer we were using at this level. */ | |
542 | { | |
543 | int count = specpdl_ptr - specpdl; | |
544 | /* Prevent error in erase-buffer. */ | |
545 | specbind (Qinhibit_read_only, Qt); | |
546 | old_deactivate_mark = Vdeactivate_mark; | |
547 | Ferase_buffer (); | |
548 | Vdeactivate_mark = old_deactivate_mark; | |
549 | unbind_to (count, Qnil); | |
550 | } | |
551 | ||
552 | /* Make sure minibuffer window is erased, not ignored. */ | |
553 | windows_or_buffers_changed++; | |
554 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 555 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
f927c5ae JB |
556 | } |
557 | \f | |
b9d721de JB |
558 | |
559 | /* This comment supplies the doc string for read-from-minibuffer, | |
560 | for make-docfile to see. We cannot put this in the real DEFUN | |
561 | due to limits in the Unix cpp. | |
562 | ||
1d8d92f4 | 563 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 6, 0, |
f927c5ae JB |
564 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
565 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string\n\ | |
566 | to be inserted into the minibuffer before reading input.\n\ | |
770970cb | 567 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input\n\ |
18fef111 | 568 | is STRING, but point is placed at position POSITION in the minibuffer.\n\ |
f927c5ae JB |
569 | Third arg KEYMAP is a keymap to use whilst reading;\n\ |
570 | if omitted or nil, the default is `minibuffer-local-map'.\n\ | |
571 | If fourth arg READ is non-nil, then interpret the result as a lisp object\n\ | |
572 | and return that object:\n\ | |
573 | in other words, do `(car (read-from-string INPUT-STRING))'\n\ | |
770970cb RS |
574 | Fifth arg HIST, if non-nil, specifies a history list\n\ |
575 | and optionally the initial position in the list.\n\ | |
576 | It can be a symbol, which is the history list variable to use,\n\ | |
577 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
578 | In that case, HISTVAR is the history list variable to use,\n\ | |
579 | and HISTPOS is the initial position (the position in the list\n\ | |
580 | which INITIAL-CONTENTS corresponds to).\n\ | |
e5d4686b RS |
581 | Positions are counted starting from 1 at the beginning of the list.\n\ |
582 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is used\n\ | |
583 | for history commands, and as the value to return if the user enters\n\ | |
584 | the empty string.\n\ | |
c3421833 RS |
585 | If the variable `minibuffer-allow-text-properties is non-nil,\n\ |
586 | then the string which is returned includes whatever text properties\n\ | |
587 | were present in the minibuffer. Otherwise the value has no text properties. */ | |
b9d721de | 588 | |
e5d4686b | 589 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 6, 0, |
b9d721de | 590 | 0 /* See immediately above */) |
e5d4686b RS |
591 | (prompt, initial_contents, keymap, read, hist, default_value) |
592 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; | |
f927c5ae JB |
593 | { |
594 | int pos = 0; | |
e5d4686b | 595 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
596 | struct gcpro gcpro1; |
597 | ||
770970cb | 598 | position = Qnil; |
f927c5ae JB |
599 | |
600 | CHECK_STRING (prompt, 0); | |
68e5a8a2 | 601 | if (!NILP (initial_contents)) |
f927c5ae | 602 | { |
7510b296 | 603 | if (CONSP (initial_contents)) |
770970cb | 604 | { |
68e5a8a2 RS |
605 | position = Fcdr (initial_contents); |
606 | initial_contents = Fcar (initial_contents); | |
770970cb | 607 | } |
68e5a8a2 | 608 | CHECK_STRING (initial_contents, 1); |
56a98455 | 609 | if (!NILP (position)) |
f927c5ae JB |
610 | { |
611 | CHECK_NUMBER (position, 0); | |
612 | /* Convert to distance from end of input. */ | |
18fef111 RS |
613 | if (XINT (position) < 1) |
614 | /* A number too small means the beginning of the string. */ | |
615 | pos = - XSTRING (initial_contents)->size; | |
616 | else | |
617 | pos = XINT (position) - 1 - XSTRING (initial_contents)->size; | |
f927c5ae JB |
618 | } |
619 | } | |
620 | ||
56a98455 | 621 | if (NILP (keymap)) |
f927c5ae JB |
622 | keymap = Vminibuffer_local_map; |
623 | else | |
b7df898e | 624 | keymap = get_keymap (keymap); |
770970cb | 625 | |
7510b296 | 626 | if (SYMBOLP (hist)) |
770970cb RS |
627 | { |
628 | histvar = hist; | |
629 | histpos = Qnil; | |
630 | } | |
631 | else | |
632 | { | |
633 | histvar = Fcar_safe (hist); | |
634 | histpos = Fcdr_safe (hist); | |
635 | } | |
636 | if (NILP (histvar)) | |
637 | histvar = Qminibuffer_history; | |
638 | if (NILP (histpos)) | |
5a866662 | 639 | XSETFASTINT (histpos, 0); |
770970cb | 640 | |
1d8d92f4 | 641 | GCPRO1 (default_value); |
e5d4686b RS |
642 | val = read_minibuf (keymap, initial_contents, prompt, |
643 | make_number (pos), !NILP (read), | |
c3421833 RS |
644 | histvar, histpos, default_value, |
645 | minibuffer_allow_text_properties); | |
e5d4686b RS |
646 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (default_value)) |
647 | val = default_value; | |
1d8d92f4 | 648 | UNGCPRO; |
e5d4686b | 649 | return val; |
f927c5ae JB |
650 | } |
651 | ||
652 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
653 | "Return a Lisp object read using the minibuffer.\n\ | |
654 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
655 | is a string to insert in the minibuffer before reading.") | |
656 | (prompt, initial_contents) | |
657 | Lisp_Object prompt, initial_contents; | |
658 | { | |
659 | CHECK_STRING (prompt, 0); | |
56a98455 | 660 | if (!NILP (initial_contents)) |
a1b4b084 | 661 | CHECK_STRING (initial_contents, 1); |
770970cb | 662 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 663 | prompt, Qnil, 1, Qminibuffer_history, |
c3421833 | 664 | make_number (0), Qnil, 0); |
f927c5ae JB |
665 | } |
666 | ||
667 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
668 | "Return value of Lisp expression read using the minibuffer.\n\ | |
669 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
670 | is a string to insert in the minibuffer before reading.") | |
671 | (prompt, initial_contents) | |
672 | Lisp_Object prompt, initial_contents; | |
673 | { | |
674 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
675 | } | |
676 | ||
677 | /* Functions that use the minibuffer to read various things. */ | |
678 | ||
e5d4686b | 679 | DEFUN ("read-string", Fread_string, Sread_string, 1, 4, 0, |
f927c5ae | 680 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
80896ab4 RS |
681 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading.\n\ |
682 | The third arg HISTORY, if non-nil, specifies a history list\n\ | |
683 | and optionally the initial position in the list.\n\ | |
684 | See `read-from-minibuffer' for details of HISTORY argument.") | |
e5d4686b RS |
685 | (prompt, initial_input, history, default_value) |
686 | Lisp_Object prompt, initial_input, history, default_value; | |
f927c5ae | 687 | { |
e5d4686b RS |
688 | return Fread_from_minibuffer (prompt, initial_input, Qnil, |
689 | Qnil, history, default_value); | |
f927c5ae JB |
690 | } |
691 | ||
b278606c | 692 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 2, 0, |
f927c5ae JB |
693 | "Args PROMPT and INIT, strings. Read a string from the terminal, not allowing blanks.\n\ |
694 | Prompt with PROMPT, and provide INIT as an initial value of the input string.") | |
695 | (prompt, init) | |
696 | Lisp_Object prompt, init; | |
697 | { | |
698 | CHECK_STRING (prompt, 0); | |
56a98455 | 699 | if (! NILP (init)) |
f927c5ae JB |
700 | CHECK_STRING (init, 1); |
701 | ||
e5d4686b | 702 | return read_minibuf (Vminibuffer_local_ns_map, init, prompt, Qnil, |
c3421833 | 703 | 0, Qminibuffer_history, make_number (0), Qnil, 0); |
f927c5ae JB |
704 | } |
705 | ||
e5d4686b RS |
706 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
707 | "Read the name of a command and return as a symbol.\n\ | |
708 | Prompts with PROMPT. By default, return DEFAULT-VALUE.") | |
709 | (prompt, default_value) | |
710 | Lisp_Object prompt, default_value; | |
f927c5ae | 711 | { |
e5d4686b RS |
712 | return Fintern (Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, |
713 | Qnil, Qnil, default_value), | |
f927c5ae JB |
714 | Qnil); |
715 | } | |
716 | ||
717 | #ifdef NOTDEF | |
718 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
719 | "One arg PROMPT, a string. Read the name of a function and return as a symbol.\n\ | |
720 | Prompts with PROMPT.") | |
721 | (prompt) | |
722 | Lisp_Object prompt; | |
723 | { | |
e5d4686b | 724 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil), |
f927c5ae JB |
725 | Qnil); |
726 | } | |
727 | #endif /* NOTDEF */ | |
728 | ||
e5d4686b RS |
729 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
730 | "Read the name of a user variable and return it as a symbol.\n\ | |
731 | Prompts with PROMPT. By default, return DEFAULT-VALUE.\n\ | |
f927c5ae | 732 | A user variable is one whose documentation starts with a `*' character.") |
e5d4686b RS |
733 | (prompt, default_value) |
734 | Lisp_Object prompt, default_value; | |
f927c5ae JB |
735 | { |
736 | return Fintern (Fcompleting_read (prompt, Vobarray, | |
e5d4686b RS |
737 | Quser_variable_p, Qt, |
738 | Qnil, Qnil, default_value), | |
f927c5ae JB |
739 | Qnil); |
740 | } | |
741 | ||
742 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
743 | "One arg PROMPT, a string. Read the name of a buffer and return as a string.\n\ | |
744 | Prompts with PROMPT.\n\ | |
e5d4686b | 745 | Optional second arg DEF is value to return if user enters an empty line.\n\ |
f927c5ae JB |
746 | If optional third arg REQUIRE-MATCH is non-nil, only existing buffer names are allowed.") |
747 | (prompt, def, require_match) | |
748 | Lisp_Object prompt, def, require_match; | |
749 | { | |
750 | Lisp_Object tem; | |
751 | Lisp_Object args[3]; | |
f927c5ae | 752 | |
7510b296 | 753 | if (BUFFERP (def)) |
f927c5ae | 754 | def = XBUFFER (def)->name; |
56a98455 | 755 | if (!NILP (def)) |
f927c5ae JB |
756 | { |
757 | args[0] = build_string ("%s(default %s) "); | |
758 | args[1] = prompt; | |
759 | args[2] = def; | |
760 | prompt = Fformat (3, args); | |
761 | } | |
e5d4686b RS |
762 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, |
763 | require_match, Qnil, Qnil, def); | |
f927c5ae JB |
764 | } |
765 | \f | |
766 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, | |
767 | "Return common substring of all completions of STRING in ALIST.\n\ | |
768 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
769 | All that match are compared together; the longest initial sequence\n\ | |
770 | common to all matches is returned as a string.\n\ | |
771 | If there is no match at all, nil is returned.\n\ | |
772 | For an exact match, t is returned.\n\ | |
773 | \n\ | |
774 | ALIST can be an obarray instead of an alist.\n\ | |
775 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
776 | \n\ | |
777 | ALIST can also be a function to do the completion itself.\n\ | |
778 | It receives three arguments: the values STRING, PREDICATE and nil.\n\ | |
779 | Whatever it returns becomes the value of `try-completion'.\n\ | |
780 | \n\ | |
781 | If optional third argument PREDICATE is non-nil,\n\ | |
782 | it is used to test each possible match.\n\ | |
783 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
784 | The argument given to PREDICATE is the alist element\n\ |
785 | or the symbol from the obarray.") | |
7efd36fc EN |
786 | (string, alist, predicate) |
787 | Lisp_Object string, alist, predicate; | |
f927c5ae JB |
788 | { |
789 | Lisp_Object bestmatch, tail, elt, eltstring; | |
790 | int bestmatchsize; | |
791 | int compare, matchsize; | |
56a98455 | 792 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
793 | int index, obsize; |
794 | int matchcount = 0; | |
795 | Lisp_Object bucket, zero, end, tem; | |
796 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
797 | ||
798 | CHECK_STRING (string, 0); | |
7510b296 | 799 | if (!list && !VECTORP (alist)) |
7efd36fc | 800 | return call3 (alist, string, predicate, Qnil); |
f927c5ae JB |
801 | |
802 | bestmatch = Qnil; | |
803 | ||
804 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
805 | tail = alist; | |
806 | if (! list) | |
807 | { | |
808 | index = 0; | |
809 | obsize = XVECTOR (alist)->size; | |
810 | bucket = XVECTOR (alist)->contents[index]; | |
811 | } | |
812 | ||
813 | while (1) | |
814 | { | |
815 | /* Get the next element of the alist or obarray. */ | |
816 | /* Exit the loop if the elements are all used up. */ | |
817 | /* elt gets the alist element or symbol. | |
818 | eltstring gets the name to check as a completion. */ | |
819 | ||
820 | if (list) | |
821 | { | |
56a98455 | 822 | if (NILP (tail)) |
f927c5ae JB |
823 | break; |
824 | elt = Fcar (tail); | |
825 | eltstring = Fcar (elt); | |
826 | tail = Fcdr (tail); | |
827 | } | |
828 | else | |
829 | { | |
830 | if (XFASTINT (bucket) != 0) | |
831 | { | |
832 | elt = bucket; | |
833 | eltstring = Fsymbol_name (elt); | |
834 | if (XSYMBOL (bucket)->next) | |
835 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
836 | else | |
5a866662 | 837 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
838 | } |
839 | else if (++index >= obsize) | |
840 | break; | |
841 | else | |
842 | { | |
843 | bucket = XVECTOR (alist)->contents[index]; | |
844 | continue; | |
845 | } | |
846 | } | |
847 | ||
848 | /* Is this element a possible completion? */ | |
849 | ||
7510b296 | 850 | if (STRINGP (eltstring) |
42006772 RS |
851 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
852 | && 0 > scmp (XSTRING (eltstring)->data, XSTRING (string)->data, | |
853 | XSTRING (string)->size)) | |
f927c5ae JB |
854 | { |
855 | /* Yes. */ | |
42006772 RS |
856 | Lisp_Object regexps; |
857 | Lisp_Object zero; | |
5a866662 | 858 | XSETFASTINT (zero, 0); |
42006772 RS |
859 | |
860 | /* Ignore this element if it fails to match all the regexps. */ | |
861 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
862 | regexps = XCONS (regexps)->cdr) | |
863 | { | |
864 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
865 | if (NILP (tem)) | |
866 | break; | |
867 | } | |
868 | if (CONSP (regexps)) | |
869 | continue; | |
870 | ||
f927c5ae JB |
871 | /* Ignore this element if there is a predicate |
872 | and the predicate doesn't like it. */ | |
873 | ||
7efd36fc | 874 | if (!NILP (predicate)) |
f927c5ae | 875 | { |
7efd36fc | 876 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
877 | tem = Fcommandp (elt); |
878 | else | |
879 | { | |
880 | GCPRO4 (tail, string, eltstring, bestmatch); | |
7efd36fc | 881 | tem = call1 (predicate, elt); |
f927c5ae JB |
882 | UNGCPRO; |
883 | } | |
56a98455 | 884 | if (NILP (tem)) continue; |
f927c5ae JB |
885 | } |
886 | ||
887 | /* Update computation of how much all possible completions match */ | |
888 | ||
889 | matchcount++; | |
56a98455 | 890 | if (NILP (bestmatch)) |
f927c5ae JB |
891 | bestmatch = eltstring, bestmatchsize = XSTRING (eltstring)->size; |
892 | else | |
893 | { | |
894 | compare = min (bestmatchsize, XSTRING (eltstring)->size); | |
895 | matchsize = scmp (XSTRING (bestmatch)->data, | |
896 | XSTRING (eltstring)->data, | |
897 | compare); | |
52b14ac0 JB |
898 | if (matchsize < 0) |
899 | matchsize = compare; | |
900 | if (completion_ignore_case) | |
901 | { | |
902 | /* If this is an exact match except for case, | |
903 | use it as the best match rather than one that is not an | |
904 | exact match. This way, we get the case pattern | |
905 | of the actual match. */ | |
906 | if ((matchsize == XSTRING (eltstring)->size | |
907 | && matchsize < XSTRING (bestmatch)->size) | |
908 | || | |
909 | /* If there is more than one exact match ignoring case, | |
910 | and one of them is exact including case, | |
911 | prefer that one. */ | |
912 | /* If there is no exact match ignoring case, | |
913 | prefer a match that does not change the case | |
914 | of the input. */ | |
915 | ((matchsize == XSTRING (eltstring)->size) | |
916 | == | |
917 | (matchsize == XSTRING (bestmatch)->size) | |
918 | && !bcmp (XSTRING (eltstring)->data, | |
919 | XSTRING (string)->data, XSTRING (string)->size) | |
920 | && bcmp (XSTRING (bestmatch)->data, | |
921 | XSTRING (string)->data, XSTRING (string)->size))) | |
922 | bestmatch = eltstring; | |
923 | } | |
924 | bestmatchsize = matchsize; | |
f927c5ae JB |
925 | } |
926 | } | |
927 | } | |
928 | ||
56a98455 | 929 | if (NILP (bestmatch)) |
f927c5ae | 930 | return Qnil; /* No completions found */ |
52b14ac0 JB |
931 | /* If we are ignoring case, and there is no exact match, |
932 | and no additional text was supplied, | |
933 | don't change the case of what the user typed. */ | |
934 | if (completion_ignore_case && bestmatchsize == XSTRING (string)->size | |
935 | && XSTRING (bestmatch)->size > bestmatchsize) | |
936 | return string; | |
937 | ||
938 | /* Return t if the supplied string is an exact match (counting case); | |
939 | it does not require any change to be made. */ | |
940 | if (matchcount == 1 && bestmatchsize == XSTRING (string)->size | |
941 | && !bcmp (XSTRING (bestmatch)->data, XSTRING (string)->data, | |
942 | bestmatchsize)) | |
f927c5ae JB |
943 | return Qt; |
944 | ||
5a866662 KH |
945 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
946 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
947 | return Fsubstring (bestmatch, zero, end); |
948 | } | |
949 | ||
950 | /* Compare exactly LEN chars of strings at S1 and S2, | |
951 | ignoring case if appropriate. | |
952 | Return -1 if strings match, | |
953 | else number of chars that match at the beginning. */ | |
954 | ||
829f7f7c | 955 | int |
f927c5ae | 956 | scmp (s1, s2, len) |
829f7f7c | 957 | register unsigned char *s1, *s2; |
f927c5ae JB |
958 | int len; |
959 | { | |
960 | register int l = len; | |
d50a3d2a | 961 | register unsigned char *start = s1; |
f927c5ae JB |
962 | |
963 | if (completion_ignore_case) | |
964 | { | |
2e34157c | 965 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) |
f927c5ae JB |
966 | l--; |
967 | } | |
968 | else | |
969 | { | |
970 | while (l && *s1++ == *s2++) | |
971 | l--; | |
972 | } | |
973 | if (l == 0) | |
974 | return -1; | |
829f7f7c | 975 | else |
d50a3d2a KH |
976 | { |
977 | int match = len - l; | |
978 | ||
979 | /* Now *--S1 is the unmatching byte. If it is in the middle of | |
980 | multi-byte form, we must say that the multi-byte character | |
981 | there doesn't match. */ | |
982 | while (match && *--s1 >= 0xA0) match--; | |
983 | return match; | |
984 | } | |
f927c5ae JB |
985 | } |
986 | \f | |
89a255dc | 987 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
f927c5ae JB |
988 | "Search for partial matches to STRING in ALIST.\n\ |
989 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
990 | The value is a list of all the strings from ALIST that match.\n\ | |
89a255dc | 991 | \n\ |
f927c5ae JB |
992 | ALIST can be an obarray instead of an alist.\n\ |
993 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
994 | \n\ | |
995 | ALIST can also be a function to do the completion itself.\n\ | |
996 | It receives three arguments: the values STRING, PREDICATE and t.\n\ | |
997 | Whatever it returns becomes the value of `all-completion'.\n\ | |
998 | \n\ | |
999 | If optional third argument PREDICATE is non-nil,\n\ | |
1000 | it is used to test each possible match.\n\ | |
1001 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
1002 | The argument given to PREDICATE is the alist element\n\ |
1003 | or the symbol from the obarray.\n\ | |
1004 | \n\ | |
1005 | If the optional fourth argument HIDE-SPACES is non-nil,\n\ | |
1006 | strings in ALIST that start with a space\n\ | |
1007 | are ignored unless STRING itself starts with a space.") | |
7efd36fc EN |
1008 | (string, alist, predicate, hide_spaces) |
1009 | Lisp_Object string, alist, predicate, hide_spaces; | |
f927c5ae JB |
1010 | { |
1011 | Lisp_Object tail, elt, eltstring; | |
1012 | Lisp_Object allmatches; | |
56a98455 | 1013 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
1014 | int index, obsize; |
1015 | Lisp_Object bucket, tem; | |
1016 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1017 | ||
1018 | CHECK_STRING (string, 0); | |
7510b296 | 1019 | if (!list && !VECTORP (alist)) |
f927c5ae | 1020 | { |
7efd36fc | 1021 | return call3 (alist, string, predicate, Qt); |
f927c5ae JB |
1022 | } |
1023 | allmatches = Qnil; | |
1024 | ||
1025 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1026 | tail = alist; | |
1027 | if (! list) | |
1028 | { | |
1029 | index = 0; | |
1030 | obsize = XVECTOR (alist)->size; | |
1031 | bucket = XVECTOR (alist)->contents[index]; | |
1032 | } | |
1033 | ||
1034 | while (1) | |
1035 | { | |
1036 | /* Get the next element of the alist or obarray. */ | |
1037 | /* Exit the loop if the elements are all used up. */ | |
1038 | /* elt gets the alist element or symbol. | |
1039 | eltstring gets the name to check as a completion. */ | |
1040 | ||
1041 | if (list) | |
1042 | { | |
56a98455 | 1043 | if (NILP (tail)) |
f927c5ae JB |
1044 | break; |
1045 | elt = Fcar (tail); | |
1046 | eltstring = Fcar (elt); | |
1047 | tail = Fcdr (tail); | |
1048 | } | |
1049 | else | |
1050 | { | |
1051 | if (XFASTINT (bucket) != 0) | |
1052 | { | |
1053 | elt = bucket; | |
1054 | eltstring = Fsymbol_name (elt); | |
1055 | if (XSYMBOL (bucket)->next) | |
1056 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1057 | else | |
5a866662 | 1058 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1059 | } |
1060 | else if (++index >= obsize) | |
1061 | break; | |
1062 | else | |
1063 | { | |
1064 | bucket = XVECTOR (alist)->contents[index]; | |
1065 | continue; | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | /* Is this element a possible completion? */ | |
1070 | ||
7510b296 | 1071 | if (STRINGP (eltstring) |
2cbaf886 | 1072 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
89a255dc | 1073 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 RS |
1074 | unless the input starts with space. */ |
1075 | && ((XSTRING (string)->size > 0 && XSTRING (string)->data[0] == ' ') | |
89a255dc RS |
1076 | || XSTRING (eltstring)->data[0] != ' ' |
1077 | || NILP (hide_spaces)) | |
2cbaf886 RS |
1078 | && 0 > scmp (XSTRING (eltstring)->data, XSTRING (string)->data, |
1079 | XSTRING (string)->size)) | |
f927c5ae JB |
1080 | { |
1081 | /* Yes. */ | |
42006772 RS |
1082 | Lisp_Object regexps; |
1083 | Lisp_Object zero; | |
5a866662 | 1084 | XSETFASTINT (zero, 0); |
42006772 RS |
1085 | |
1086 | /* Ignore this element if it fails to match all the regexps. */ | |
1087 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1088 | regexps = XCONS (regexps)->cdr) | |
1089 | { | |
1090 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
1091 | if (NILP (tem)) | |
1092 | break; | |
1093 | } | |
1094 | if (CONSP (regexps)) | |
1095 | continue; | |
1096 | ||
f927c5ae JB |
1097 | /* Ignore this element if there is a predicate |
1098 | and the predicate doesn't like it. */ | |
1099 | ||
7efd36fc | 1100 | if (!NILP (predicate)) |
f927c5ae | 1101 | { |
7efd36fc | 1102 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1103 | tem = Fcommandp (elt); |
1104 | else | |
1105 | { | |
1106 | GCPRO4 (tail, eltstring, allmatches, string); | |
7efd36fc | 1107 | tem = call1 (predicate, elt); |
f927c5ae JB |
1108 | UNGCPRO; |
1109 | } | |
56a98455 | 1110 | if (NILP (tem)) continue; |
f927c5ae JB |
1111 | } |
1112 | /* Ok => put it on the list. */ | |
1113 | allmatches = Fcons (eltstring, allmatches); | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | return Fnreverse (allmatches); | |
1118 | } | |
1119 | \f | |
1120 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1121 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1122 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
1123 | ||
b9d721de JB |
1124 | /* This comment supplies the doc string for completing-read, |
1125 | for make-docfile to see. We cannot put this in the real DEFUN | |
1126 | due to limits in the Unix cpp. | |
1127 | ||
e5d4686b | 1128 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 7, 0, |
f927c5ae | 1129 | "Read a string in the minibuffer, with completion.\n\ |
f927c5ae JB |
1130 | PROMPT is a string to prompt with; normally it ends in a colon and a space.\n\ |
1131 | TABLE is an alist whose elements' cars are strings, or an obarray.\n\ | |
1132 | PREDICATE limits completion to a subset of TABLE.\n\ | |
6b3faad8 RS |
1133 | See `try-completion' and `all-completions' for more details |
1134 | on completion, TABLE, and PREDICATE.\n\ | |
cbbc3917 | 1135 | \n\ |
f927c5ae | 1136 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless\n\ |
4ced3209 | 1137 | the input is (or completes to) an element of TABLE or is null.\n\ |
f927c5ae | 1138 | If it is also not t, Return does not exit if it does non-null completion.\n\ |
fab95625 | 1139 | If the input is null, `completing-read' returns an empty string,\n\ |
cbbc3917 RS |
1140 | regardless of the value of REQUIRE-MATCH.\n\ |
1141 | \n\ | |
f927c5ae | 1142 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.\n\ |
770970cb RS |
1143 | If it is (STRING . POSITION), the initial input\n\ |
1144 | is STRING, but point is placed POSITION characters into the string.\n\ | |
1145 | HIST, if non-nil, specifies a history list\n\ | |
1146 | and optionally the initial position in the list.\n\ | |
1147 | It can be a symbol, which is the history list variable to use,\n\ | |
1148 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
1149 | In that case, HISTVAR is the history list variable to use,\n\ | |
1150 | and HISTPOS is the initial position (the position in the list\n\ | |
1151 | which INITIAL-CONTENTS corresponds to).\n\ | |
1152 | Positions are counted starting from 1 at the beginning of the list.\n\ | |
e5d4686b RS |
1153 | DEF, if non-nil, is the default value. |
1154 | ||
770970cb | 1155 | Completion ignores case if the ambient value of\n\ |
b9d721de JB |
1156 | `completion-ignore-case' is non-nil." |
1157 | */ | |
e5d4686b | 1158 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 7, 0, |
b9d721de | 1159 | 0 /* See immediately above */) |
e5d4686b RS |
1160 | (prompt, table, predicate, require_match, init, hist, def) |
1161 | Lisp_Object prompt, table, predicate, require_match, init, hist, def; | |
f927c5ae | 1162 | { |
770970cb RS |
1163 | Lisp_Object val, histvar, histpos, position; |
1164 | int pos = 0; | |
f927c5ae | 1165 | int count = specpdl_ptr - specpdl; |
0c8ee1a2 RS |
1166 | struct gcpro gcpro1; |
1167 | ||
1168 | GCPRO1 (def); | |
1169 | ||
f927c5ae | 1170 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1171 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae JB |
1172 | specbind (Qminibuffer_completion_confirm, |
1173 | EQ (require_match, Qt) ? Qnil : Qt); | |
1174 | last_exact_completion = Qnil; | |
770970cb RS |
1175 | |
1176 | position = Qnil; | |
1177 | if (!NILP (init)) | |
1178 | { | |
7510b296 | 1179 | if (CONSP (init)) |
770970cb RS |
1180 | { |
1181 | position = Fcdr (init); | |
1182 | init = Fcar (init); | |
1183 | } | |
1184 | CHECK_STRING (init, 0); | |
1185 | if (!NILP (position)) | |
1186 | { | |
1187 | CHECK_NUMBER (position, 0); | |
1188 | /* Convert to distance from end of input. */ | |
5dadd3a2 | 1189 | pos = XINT (position) - XSTRING (init)->size; |
770970cb RS |
1190 | } |
1191 | } | |
1192 | ||
7510b296 | 1193 | if (SYMBOLP (hist)) |
770970cb RS |
1194 | { |
1195 | histvar = hist; | |
1196 | histpos = Qnil; | |
1197 | } | |
1198 | else | |
1199 | { | |
1200 | histvar = Fcar_safe (hist); | |
1201 | histpos = Fcdr_safe (hist); | |
1202 | } | |
1203 | if (NILP (histvar)) | |
1204 | histvar = Qminibuffer_history; | |
1205 | if (NILP (histpos)) | |
5a866662 | 1206 | XSETFASTINT (histpos, 0); |
770970cb | 1207 | |
56a98455 | 1208 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1209 | ? Vminibuffer_local_completion_map |
1210 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1211 | init, prompt, make_number (pos), 0, |
c3421833 | 1212 | histvar, histpos, def, 0); |
e5d4686b RS |
1213 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (def)) |
1214 | val = def; | |
0c8ee1a2 | 1215 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1216 | } |
1217 | \f | |
f927c5ae | 1218 | Lisp_Object Fminibuffer_completion_help (); |
52b14ac0 | 1219 | Lisp_Object assoc_for_completion (); |
5d2ca7ae RS |
1220 | /* A subroutine of Fintern_soft. */ |
1221 | extern Lisp_Object oblookup (); | |
1222 | ||
1223 | ||
1224 | /* Test whether TXT is an exact completion. */ | |
1225 | Lisp_Object | |
1226 | test_completion (txt) | |
1227 | Lisp_Object txt; | |
1228 | { | |
1229 | Lisp_Object tem; | |
1230 | ||
1231 | if (CONSP (Vminibuffer_completion_table) | |
1232 | || NILP (Vminibuffer_completion_table)) | |
1233 | return assoc_for_completion (txt, Vminibuffer_completion_table); | |
1234 | else if (VECTORP (Vminibuffer_completion_table)) | |
1235 | { | |
1236 | /* Bypass intern-soft as that loses for nil */ | |
1237 | tem = oblookup (Vminibuffer_completion_table, | |
1238 | XSTRING (txt)->data, XSTRING (txt)->size); | |
44472c88 | 1239 | if (!SYMBOLP (tem)) |
5d2ca7ae RS |
1240 | return Qnil; |
1241 | else if (!NILP (Vminibuffer_completion_predicate)) | |
1242 | return call1 (Vminibuffer_completion_predicate, tem); | |
1243 | else | |
1244 | return Qt; | |
1245 | } | |
1246 | else | |
1247 | return call3 (Vminibuffer_completion_table, txt, | |
1248 | Vminibuffer_completion_predicate, Qlambda); | |
1249 | } | |
f927c5ae JB |
1250 | |
1251 | /* returns: | |
1252 | * 0 no possible completion | |
1253 | * 1 was already an exact and unique completion | |
1254 | * 3 was already an exact completion | |
1255 | * 4 completed to an exact completion | |
1256 | * 5 some completion happened | |
1257 | * 6 no completion happened | |
1258 | */ | |
1259 | int | |
1260 | do_completion () | |
1261 | { | |
1262 | Lisp_Object completion, tem; | |
1263 | int completedp; | |
1264 | Lisp_Object last; | |
1e00c2ff | 1265 | struct gcpro gcpro1, gcpro2; |
f927c5ae JB |
1266 | |
1267 | completion = Ftry_completion (Fbuffer_string (), Vminibuffer_completion_table, | |
1268 | Vminibuffer_completion_predicate); | |
1269 | last = last_exact_completion; | |
1270 | last_exact_completion = Qnil; | |
1271 | ||
4f9b95e5 KH |
1272 | GCPRO2 (completion, last); |
1273 | ||
56a98455 | 1274 | if (NILP (completion)) |
f927c5ae JB |
1275 | { |
1276 | bitch_at_user (); | |
1277 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1278 | UNGCPRO; |
f927c5ae JB |
1279 | return 0; |
1280 | } | |
1281 | ||
1282 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1283 | { |
1284 | UNGCPRO; | |
1285 | return 1; | |
1286 | } | |
f927c5ae JB |
1287 | |
1288 | /* compiler bug */ | |
1289 | tem = Fstring_equal (completion, Fbuffer_string()); | |
56a98455 | 1290 | if (completedp = NILP (tem)) |
f927c5ae JB |
1291 | { |
1292 | Ferase_buffer (); /* Some completion happened */ | |
1293 | Finsert (1, &completion); | |
1294 | } | |
1295 | ||
1296 | /* It did find a match. Do we match some possibility exactly now? */ | |
5d2ca7ae | 1297 | tem = test_completion (Fbuffer_string ()); |
56a98455 | 1298 | if (NILP (tem)) |
1e00c2ff KH |
1299 | { |
1300 | /* not an exact match */ | |
1301 | UNGCPRO; | |
f927c5ae JB |
1302 | if (completedp) |
1303 | return 5; | |
1304 | else if (auto_help) | |
1305 | Fminibuffer_completion_help (); | |
1306 | else | |
1307 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1308 | return 6; | |
1309 | } | |
1310 | else if (completedp) | |
1e00c2ff KH |
1311 | { |
1312 | UNGCPRO; | |
1313 | return 4; | |
1314 | } | |
f927c5ae JB |
1315 | /* If the last exact completion and this one were the same, |
1316 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1317 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1318 | last_exact_completion = completion; |
56a98455 | 1319 | if (!NILP (last)) |
f927c5ae JB |
1320 | { |
1321 | tem = Fbuffer_string (); | |
56a98455 | 1322 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1323 | Fminibuffer_completion_help (); |
1324 | } | |
1e00c2ff | 1325 | UNGCPRO; |
f927c5ae | 1326 | return 3; |
f927c5ae | 1327 | } |
1e00c2ff | 1328 | |
52b14ac0 JB |
1329 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1330 | ||
1331 | Lisp_Object | |
1332 | assoc_for_completion (key, list) | |
1333 | register Lisp_Object key; | |
1334 | Lisp_Object list; | |
1335 | { | |
1336 | register Lisp_Object tail; | |
1337 | ||
1338 | if (completion_ignore_case) | |
1339 | key = Fupcase (key); | |
1340 | ||
56a98455 | 1341 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1342 | { |
1343 | register Lisp_Object elt, tem, thiscar; | |
1344 | elt = Fcar (tail); | |
1345 | if (!CONSP (elt)) continue; | |
1346 | thiscar = Fcar (elt); | |
7510b296 | 1347 | if (!STRINGP (thiscar)) |
52b14ac0 JB |
1348 | continue; |
1349 | if (completion_ignore_case) | |
1350 | thiscar = Fupcase (thiscar); | |
1351 | tem = Fequal (thiscar, key); | |
56a98455 | 1352 | if (!NILP (tem)) return elt; |
52b14ac0 JB |
1353 | QUIT; |
1354 | } | |
1355 | return Qnil; | |
1356 | } | |
f927c5ae JB |
1357 | |
1358 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
6300d782 | 1359 | "Complete the minibuffer contents as far as possible.\n\ |
2cb6da5c RS |
1360 | Return nil if there is no valid completion, else t.\n\ |
1361 | If no characters can be completed, display a list of possible completions.\n\ | |
1362 | If you repeat this command after it displayed such a list,\n\ | |
1363 | scroll the window of possible completions.") | |
f927c5ae JB |
1364 | () |
1365 | { | |
2cb6da5c RS |
1366 | register int i; |
1367 | Lisp_Object window, tem; | |
1368 | ||
1369 | /* If the previous command was not this, then mark the completion | |
1370 | buffer obsolete. */ | |
5221fd63 | 1371 | if (! EQ (current_kboard->Vlast_command, this_command)) |
2cb6da5c RS |
1372 | Vminibuf_scroll_window = Qnil; |
1373 | ||
1374 | window = Vminibuf_scroll_window; | |
1375 | /* If there's a fresh completion window with a live buffer, | |
1376 | and this command is repeated, scroll that window. */ | |
1377 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1378 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1379 | { | |
1380 | struct buffer *obuf = current_buffer; | |
1381 | ||
1382 | Fset_buffer (XWINDOW (window)->buffer); | |
1383 | tem = Fpos_visible_in_window_p (make_number (ZV), window); | |
1384 | if (! NILP (tem)) | |
1385 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1386 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1387 | else |
1388 | /* Else scroll down one screen. */ | |
1389 | Fscroll_other_window (Qnil); | |
1390 | ||
1391 | set_buffer_internal (obuf); | |
1392 | return Qnil; | |
1393 | } | |
1394 | ||
1395 | i = do_completion (); | |
f927c5ae JB |
1396 | switch (i) |
1397 | { | |
1398 | case 0: | |
1399 | return Qnil; | |
1400 | ||
1401 | case 1: | |
1402 | temp_echo_area_glyphs (" [Sole completion]"); | |
1403 | break; | |
1404 | ||
1405 | case 3: | |
1406 | temp_echo_area_glyphs (" [Complete, but not unique]"); | |
1407 | break; | |
1408 | } | |
1409 | ||
1410 | return Qt; | |
1411 | } | |
e4c97a67 RS |
1412 | \f |
1413 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1414 | ||
1415 | /* This one is called by internal_condition_case to do the real work. */ | |
1416 | ||
1417 | Lisp_Object | |
1418 | complete_and_exit_1 () | |
1419 | { | |
1420 | return make_number (do_completion ()); | |
1421 | } | |
1422 | ||
1423 | /* This one is called by internal_condition_case if an error happens. | |
1424 | Pretend the current value is an exact match. */ | |
1425 | ||
1426 | Lisp_Object | |
1427 | complete_and_exit_2 (ignore) | |
1428 | Lisp_Object ignore; | |
1429 | { | |
1430 | return make_number (1); | |
1431 | } | |
f927c5ae JB |
1432 | |
1433 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
1434 | Sminibuffer_complete_and_exit, 0, 0, "", | |
5d2ca7ae RS |
1435 | "If the minibuffer contents is a valid completion then exit.\n\ |
1436 | Otherwise try to complete it. If completion leads to a valid completion,\n\ | |
f927c5ae JB |
1437 | a repetition of this command will exit.") |
1438 | () | |
1439 | { | |
1440 | register int i; | |
e4c97a67 | 1441 | Lisp_Object val; |
f927c5ae JB |
1442 | |
1443 | /* Allow user to specify null string */ | |
1444 | if (BEGV == ZV) | |
1445 | goto exit; | |
1446 | ||
5d2ca7ae RS |
1447 | if (!NILP (test_completion (Fbuffer_string ()))) |
1448 | goto exit; | |
1449 | ||
e4c97a67 RS |
1450 | /* Call do_completion, but ignore errors. */ |
1451 | val = internal_condition_case (complete_and_exit_1, Qerror, | |
1452 | complete_and_exit_2); | |
1453 | ||
1454 | i = XFASTINT (val); | |
f927c5ae JB |
1455 | switch (i) |
1456 | { | |
1457 | case 1: | |
1458 | case 3: | |
1459 | goto exit; | |
1460 | ||
1461 | case 4: | |
56a98455 | 1462 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1463 | { |
1464 | temp_echo_area_glyphs (" [Confirm]"); | |
1465 | return Qnil; | |
1466 | } | |
1467 | else | |
1468 | goto exit; | |
1469 | ||
1470 | default: | |
1471 | return Qnil; | |
1472 | } | |
1473 | exit: | |
1474 | Fthrow (Qexit, Qnil); | |
1475 | /* NOTREACHED */ | |
1476 | } | |
1477 | ||
1478 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
1479 | 0, 0, "", | |
1480 | "Complete the minibuffer contents at most a single word.\n\ | |
1481 | After one word is completed as much as possible, a space or hyphen\n\ | |
6300d782 KH |
1482 | is added, provided that matches some possible completion.\n\ |
1483 | Return nil if there is no valid completion, else t.") | |
f927c5ae JB |
1484 | () |
1485 | { | |
1486 | Lisp_Object completion, tem; | |
1487 | register int i; | |
1488 | register unsigned char *completion_string; | |
d7be4211 | 1489 | struct gcpro gcpro1, gcpro2; |
b278606c BF |
1490 | |
1491 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1492 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae JB |
1493 | |
1494 | completion = Ftry_completion (Fbuffer_string (), | |
1495 | Vminibuffer_completion_table, | |
1496 | Vminibuffer_completion_predicate); | |
56a98455 | 1497 | if (NILP (completion)) |
f927c5ae JB |
1498 | { |
1499 | bitch_at_user (); | |
1500 | temp_echo_area_glyphs (" [No match]"); | |
1501 | return Qnil; | |
1502 | } | |
1503 | if (EQ (completion, Qt)) | |
1504 | return Qnil; | |
1505 | ||
b278606c | 1506 | #if 0 /* How the below code used to look, for reference. */ |
f927c5ae JB |
1507 | tem = Fbuffer_string (); |
1508 | b = XSTRING (tem)->data; | |
1509 | i = ZV - 1 - XSTRING (completion)->size; | |
1510 | p = XSTRING (completion)->data; | |
1511 | if (i > 0 || | |
1512 | 0 <= scmp (b, p, ZV - 1)) | |
1513 | { | |
1514 | i = 1; | |
1515 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1516 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1517 | i++; | |
1518 | del_range (1, i + 1); | |
1519 | SET_PT (ZV); | |
1520 | } | |
1521 | #else /* Rewritten code */ | |
1522 | { | |
1523 | register unsigned char *buffer_string; | |
1524 | int buffer_length, completion_length; | |
1525 | ||
59860a8c | 1526 | CHECK_STRING (completion, 0); |
f927c5ae | 1527 | tem = Fbuffer_string (); |
d7be4211 | 1528 | GCPRO2 (completion, tem); |
719b4a40 RS |
1529 | /* If reading a file name, |
1530 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
1531 | if (EQ (Vminibuffer_completion_table, Qread_file_name_internal)) | |
1532 | { | |
1533 | Lisp_Object substituted; | |
1534 | substituted = Fsubstitute_in_file_name (tem); | |
1535 | if (! EQ (substituted, tem)) | |
1536 | { | |
1537 | tem = substituted; | |
1538 | Ferase_buffer (); | |
3cab9ae4 | 1539 | insert_from_string (tem, 0, XSTRING (tem)->size, 0); |
719b4a40 RS |
1540 | } |
1541 | } | |
f927c5ae JB |
1542 | buffer_string = XSTRING (tem)->data; |
1543 | completion_string = XSTRING (completion)->data; | |
1544 | buffer_length = XSTRING (tem)->size; /* ie ZV - BEGV */ | |
1545 | completion_length = XSTRING (completion)->size; | |
1546 | i = buffer_length - completion_length; | |
1547 | /* Mly: I don't understand what this is supposed to do AT ALL */ | |
1548 | if (i > 0 || | |
1549 | 0 <= scmp (buffer_string, completion_string, buffer_length)) | |
1550 | { | |
1551 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1552 | if (i <= 0) i = 1; | |
1553 | buffer_string += i; | |
1554 | buffer_length -= i; | |
1555 | while (0 <= scmp (buffer_string++, completion_string, buffer_length--)) | |
1556 | i++; | |
1557 | del_range (1, i + 1); | |
1558 | SET_PT (ZV); | |
1559 | } | |
d7be4211 | 1560 | UNGCPRO; |
f927c5ae JB |
1561 | } |
1562 | #endif /* Rewritten code */ | |
1563 | i = ZV - BEGV; | |
1564 | ||
1565 | /* If completion finds next char not unique, | |
b278606c | 1566 | consider adding a space or a hyphen. */ |
f927c5ae JB |
1567 | if (i == XSTRING (completion)->size) |
1568 | { | |
b278606c | 1569 | GCPRO1 (completion); |
f927c5ae JB |
1570 | tem = Ftry_completion (concat2 (Fbuffer_string (), build_string (" ")), |
1571 | Vminibuffer_completion_table, | |
1572 | Vminibuffer_completion_predicate); | |
b278606c BF |
1573 | UNGCPRO; |
1574 | ||
7510b296 | 1575 | if (STRINGP (tem)) |
f927c5ae JB |
1576 | completion = tem; |
1577 | else | |
1578 | { | |
b278606c BF |
1579 | GCPRO1 (completion); |
1580 | tem = | |
1581 | Ftry_completion (concat2 (Fbuffer_string (), build_string ("-")), | |
1582 | Vminibuffer_completion_table, | |
1583 | Vminibuffer_completion_predicate); | |
1584 | UNGCPRO; | |
1585 | ||
7510b296 | 1586 | if (STRINGP (tem)) |
f927c5ae JB |
1587 | completion = tem; |
1588 | } | |
1589 | } | |
1590 | ||
1591 | /* Now find first word-break in the stuff found by completion. | |
1592 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
1593 | { |
1594 | int len, c; | |
b278606c | 1595 | |
d50a3d2a KH |
1596 | completion_string = XSTRING (completion)->data; |
1597 | for (; i < XSTRING (completion)->size; i += len) | |
1598 | { | |
1599 | c = STRING_CHAR_AND_LENGTH (completion_string + i, | |
1600 | XSTRING (completion)->size - i, | |
1601 | len); | |
1602 | if (SYNTAX (c) != Sword) | |
1603 | { | |
1604 | i += len; | |
1605 | break; | |
1606 | } | |
1607 | } | |
1608 | } | |
f927c5ae JB |
1609 | |
1610 | /* If got no characters, print help for user. */ | |
1611 | ||
1612 | if (i == ZV - BEGV) | |
1613 | { | |
1614 | if (auto_help) | |
1615 | Fminibuffer_completion_help (); | |
1616 | return Qnil; | |
1617 | } | |
1618 | ||
1619 | /* Otherwise insert in minibuffer the chars we got */ | |
1620 | ||
1621 | Ferase_buffer (); | |
3cab9ae4 | 1622 | insert_from_string (completion, 0, i, 1); |
f927c5ae JB |
1623 | return Qt; |
1624 | } | |
1625 | \f | |
1626 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
1627 | 1, 1, 0, | |
2dc2b736 | 1628 | "Display the list of completions, COMPLETIONS, using `standard-output'.\n\ |
f927c5ae | 1629 | Each element may be just a symbol or string\n\ |
2d7e41fe RS |
1630 | or may be a list of two strings to be printed as if concatenated.\n\ |
1631 | `standard-output' must be a buffer.\n\ | |
1632 | At the end, run the normal hook `completion-setup-hook'.\n\ | |
1633 | It can find the completion buffer in `standard-output'.") | |
f927c5ae JB |
1634 | (completions) |
1635 | Lisp_Object completions; | |
1636 | { | |
dae36123 | 1637 | Lisp_Object tail, elt; |
f927c5ae | 1638 | register int i; |
2dc2b736 | 1639 | int column = 0; |
dae36123 | 1640 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 1641 | struct buffer *old = current_buffer; |
681f5af4 | 1642 | int first = 1; |
486cc7fb RS |
1643 | |
1644 | /* Note that (when it matters) every variable | |
dae36123 RS |
1645 | points to a non-string that is pointed to by COMPLETIONS, |
1646 | except for ELT. ELT can be pointing to a string | |
1647 | when terpri or Findent_to calls a change hook. */ | |
1648 | elt = Qnil; | |
1649 | GCPRO2 (completions, elt); | |
486cc7fb | 1650 | |
7510b296 | 1651 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 1652 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 1653 | |
56a98455 | 1654 | if (NILP (completions)) |
cfc736bf RS |
1655 | write_string ("There are no possible completions of what you have typed.", |
1656 | -1); | |
f927c5ae JB |
1657 | else |
1658 | { | |
2dc2b736 | 1659 | write_string ("Possible completions are:", -1); |
56a98455 | 1660 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 1661 | { |
681f5af4 RS |
1662 | Lisp_Object tem; |
1663 | int length; | |
47d7d104 | 1664 | Lisp_Object startpos, endpos; |
681f5af4 RS |
1665 | |
1666 | elt = Fcar (tail); | |
1667 | /* Compute the length of this element. */ | |
1668 | if (CONSP (elt)) | |
1669 | { | |
49db96ce | 1670 | tem = XCAR (elt); |
681f5af4 | 1671 | CHECK_STRING (tem, 0); |
49db96ce | 1672 | length = XSTRING (tem)->size; |
681f5af4 | 1673 | |
49db96ce | 1674 | tem = Fcar (XCDR (elt)); |
681f5af4 | 1675 | CHECK_STRING (tem, 0); |
49db96ce | 1676 | length += XSTRING (tem)->size; |
681f5af4 RS |
1677 | } |
1678 | else | |
1679 | { | |
1680 | CHECK_STRING (elt, 0); | |
49db96ce | 1681 | length = XSTRING (elt)->size; |
681f5af4 RS |
1682 | } |
1683 | ||
1684 | /* This does a bad job for narrower than usual windows. | |
1685 | Sadly, the window it will appear in is not known | |
1686 | until after the text has been made. */ | |
1687 | ||
47d7d104 RS |
1688 | if (BUFFERP (Vstandard_output)) |
1689 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
1690 | ||
681f5af4 RS |
1691 | /* If the previous completion was very wide, |
1692 | or we have two on this line already, | |
1693 | don't put another on the same line. */ | |
1694 | if (column > 33 || first | |
1695 | /* If this is really wide, don't put it second on a line. */ | |
1696 | || column > 0 && length > 45) | |
1697 | { | |
1698 | Fterpri (Qnil); | |
1699 | column = 0; | |
1700 | } | |
1701 | /* Otherwise advance to column 35. */ | |
1702 | else | |
2dc2b736 | 1703 | { |
7510b296 | 1704 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
1705 | { |
1706 | tem = Findent_to (make_number (35), make_number (2)); | |
47d7d104 | 1707 | |
681f5af4 RS |
1708 | column = XINT (tem); |
1709 | } | |
2dc2b736 RS |
1710 | else |
1711 | { | |
1712 | do | |
1713 | { | |
1714 | write_string (" ", -1); | |
1715 | column++; | |
1716 | } | |
1717 | while (column < 35); | |
1718 | } | |
1719 | } | |
681f5af4 | 1720 | |
47d7d104 RS |
1721 | if (BUFFERP (Vstandard_output)) |
1722 | { | |
1723 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
1724 | Fset_text_properties (startpos, endpos, | |
1725 | Qnil, Vstandard_output); | |
1726 | } | |
1727 | ||
681f5af4 | 1728 | /* Output this element and update COLUMN. */ |
f927c5ae JB |
1729 | if (CONSP (elt)) |
1730 | { | |
1731 | Fprinc (Fcar (elt), Qnil); | |
1732 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
1733 | } | |
1734 | else | |
681f5af4 RS |
1735 | Fprinc (elt, Qnil); |
1736 | ||
1737 | column += length; | |
1738 | ||
1739 | /* If output is to a buffer, recompute COLUMN in a way | |
1740 | that takes account of character widths. */ | |
1741 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 1742 | { |
681f5af4 RS |
1743 | tem = Fcurrent_column (); |
1744 | column = XINT (tem); | |
2dc2b736 | 1745 | } |
681f5af4 RS |
1746 | |
1747 | first = 0; | |
f927c5ae JB |
1748 | } |
1749 | } | |
2dc2b736 | 1750 | |
486cc7fb RS |
1751 | UNGCPRO; |
1752 | ||
7510b296 | 1753 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
1754 | set_buffer_internal (old); |
1755 | ||
cfc736bf RS |
1756 | if (!NILP (Vrun_hooks)) |
1757 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
1758 | ||
f927c5ae JB |
1759 | return Qnil; |
1760 | } | |
1761 | ||
1762 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
1763 | 0, 0, "", | |
1764 | "Display a list of possible completions of the current minibuffer contents.") | |
1765 | () | |
1766 | { | |
1767 | Lisp_Object completions; | |
1768 | ||
1769 | message ("Making completion list..."); | |
1770 | completions = Fall_completions (Fbuffer_string (), | |
1771 | Vminibuffer_completion_table, | |
89a255dc RS |
1772 | Vminibuffer_completion_predicate, |
1773 | Qt); | |
f927c5ae JB |
1774 | echo_area_glyphs = 0; |
1775 | ||
56a98455 | 1776 | if (NILP (completions)) |
f927c5ae JB |
1777 | { |
1778 | bitch_at_user (); | |
1779 | temp_echo_area_glyphs (" [No completions]"); | |
1780 | } | |
1781 | else | |
1782 | internal_with_output_to_temp_buffer ("*Completions*", | |
1783 | Fdisplay_completion_list, | |
1784 | Fsort (completions, Qstring_lessp)); | |
1785 | return Qnil; | |
1786 | } | |
1787 | \f | |
1788 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
1789 | "Terminate minibuffer input.") | |
1790 | () | |
1791 | { | |
7510b296 | 1792 | if (INTEGERP (last_command_char)) |
f927c5ae JB |
1793 | internal_self_insert (last_command_char, 0); |
1794 | else | |
1795 | bitch_at_user (); | |
1796 | ||
1797 | Fthrow (Qexit, Qnil); | |
1798 | } | |
1799 | ||
1800 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
1801 | "Terminate this minibuffer argument.") | |
1802 | () | |
1803 | { | |
1804 | Fthrow (Qexit, Qnil); | |
1805 | } | |
1806 | ||
1807 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
1808 | "Return current depth of activations of minibuffer, a nonnegative integer.") | |
1809 | () | |
1810 | { | |
1811 | return make_number (minibuf_level); | |
1812 | } | |
1813 | ||
37e9a934 KH |
1814 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
1815 | "Return the prompt string of the currently-active minibuffer.\n\ | |
1816 | If no minibuffer is active, return nil.") | |
1817 | () | |
1818 | { | |
4d04c1f1 | 1819 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
1820 | } |
1821 | ||
1822 | DEFUN ("minibuffer-prompt-width", Fminibuffer_prompt_width, | |
1823 | Sminibuffer_prompt_width, 0, 0, 0, | |
c5896ef4 | 1824 | "Return the display width of the minibuffer prompt.") |
37e9a934 KH |
1825 | () |
1826 | { | |
1827 | Lisp_Object width; | |
5a866662 | 1828 | XSETFASTINT (width, minibuf_prompt_width); |
37e9a934 KH |
1829 | return width; |
1830 | } | |
f927c5ae | 1831 | \f |
2d955a50 RS |
1832 | /* Temporarily display the string M at the end of the current |
1833 | minibuffer contents. This is used to display things like | |
1834 | "[No Match]" when the user requests a completion for a prefix | |
1835 | that has no possible completions, and other quick, unobtrusive | |
1836 | messages. */ | |
1837 | ||
1838 | temp_echo_area_glyphs (m) | |
1839 | char *m; | |
1840 | { | |
1841 | int osize = ZV; | |
1842 | int opoint = PT; | |
1843 | Lisp_Object oinhibit; | |
1844 | oinhibit = Vinhibit_quit; | |
1845 | ||
1846 | /* Clear out any old echo-area message to make way for our new thing. */ | |
1847 | message (0); | |
1848 | ||
1849 | SET_PT (osize); | |
1850 | insert_string (m); | |
1851 | SET_PT (opoint); | |
1852 | Vinhibit_quit = Qt; | |
1853 | Fsit_for (make_number (2), Qnil, Qnil); | |
1854 | del_range (osize, ZV); | |
1855 | SET_PT (opoint); | |
1856 | if (!NILP (Vquit_flag)) | |
1857 | { | |
1858 | Vquit_flag = Qnil; | |
1859 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
1860 | } | |
1861 | Vinhibit_quit = oinhibit; | |
1862 | } | |
1863 | ||
1864 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
1865 | 1, 1, 0, | |
1866 | "Temporarily display STRING at the end of the minibuffer.\n\ | |
1867 | The text is displayed for two seconds,\n\ | |
1868 | or until the next input event arrives, whichever comes first.") | |
1869 | (string) | |
1870 | Lisp_Object string; | |
1871 | { | |
1872 | temp_echo_area_glyphs (XSTRING (string)->data); | |
1873 | return Qnil; | |
1874 | } | |
1875 | \f | |
f927c5ae JB |
1876 | init_minibuf_once () |
1877 | { | |
1878 | Vminibuffer_list = Qnil; | |
1879 | staticpro (&Vminibuffer_list); | |
1880 | } | |
1881 | ||
1882 | syms_of_minibuf () | |
1883 | { | |
1884 | minibuf_level = 0; | |
4d04c1f1 KH |
1885 | minibuf_prompt = Qnil; |
1886 | staticpro (&minibuf_prompt); | |
1887 | ||
1888 | minibuf_save_list = Qnil; | |
1889 | staticpro (&minibuf_save_list); | |
f927c5ae | 1890 | |
719b4a40 RS |
1891 | Qread_file_name_internal = intern ("read-file-name-internal"); |
1892 | staticpro (&Qread_file_name_internal); | |
1893 | ||
e5d4686b RS |
1894 | Qminibuffer_default = intern ("minibuffer-default"); |
1895 | staticpro (&Qminibuffer_default); | |
1896 | Fset (Qminibuffer_default, Qnil); | |
1897 | ||
f927c5ae JB |
1898 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
1899 | staticpro (&Qminibuffer_completion_table); | |
1900 | ||
1901 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
1902 | staticpro (&Qminibuffer_completion_confirm); | |
1903 | ||
1904 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
1905 | staticpro (&Qminibuffer_completion_predicate); | |
1906 | ||
1e00c2ff KH |
1907 | staticpro (&last_exact_completion); |
1908 | last_exact_completion = Qnil; | |
1909 | ||
f927c5ae JB |
1910 | staticpro (&last_minibuf_string); |
1911 | last_minibuf_string = Qnil; | |
1912 | ||
1913 | Quser_variable_p = intern ("user-variable-p"); | |
1914 | staticpro (&Quser_variable_p); | |
1915 | ||
770970cb RS |
1916 | Qminibuffer_history = intern ("minibuffer-history"); |
1917 | staticpro (&Qminibuffer_history); | |
f927c5ae | 1918 | |
5c781212 RS |
1919 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
1920 | staticpro (&Qminibuffer_setup_hook); | |
1921 | ||
177aecf9 KH |
1922 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
1923 | staticpro (&Qminibuffer_exit_hook); | |
1924 | ||
77aa8edf RS |
1925 | Qhistory_length = intern ("history-length"); |
1926 | staticpro (&Qhistory_length); | |
1927 | ||
5c781212 RS |
1928 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
1929 | "Normal hook run just after entry to minibuffer."); | |
1930 | Vminibuffer_setup_hook = Qnil; | |
1931 | ||
177aecf9 KH |
1932 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
1933 | "Normal hook run just after exit from minibuffer."); | |
1934 | Vminibuffer_exit_hook = Qnil; | |
1935 | ||
77aa8edf RS |
1936 | DEFVAR_LISP ("history-length", &Vhistory_length, |
1937 | "*Maximum length for history lists before truncation takes place.\n\ | |
1938 | A number means that length; t means infinite. Truncation takes place\n\ | |
1939 | just after a new element is inserted. Setting the history-length\n\ | |
1940 | property of a history variable overrides this default."); | |
1941 | XSETFASTINT (Vhistory_length, 30); | |
1942 | ||
f927c5ae JB |
1943 | DEFVAR_BOOL ("completion-auto-help", &auto_help, |
1944 | "*Non-nil means automatically provide help for invalid completion input."); | |
1945 | auto_help = 1; | |
1946 | ||
1947 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, | |
1948 | "Non-nil means don't consider case significant in completion."); | |
1949 | completion_ignore_case = 0; | |
1950 | ||
1951 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, | |
1952 | "*Non-nil means to allow minibuffer commands while in the minibuffer.\n\ | |
1953 | More precisely, this variable makes a difference when the minibuffer window\n\ | |
1954 | is the selected window. If you are in some other window, minibuffer commands\n\ | |
1955 | are allowed even if a minibuffer is active."); | |
1956 | enable_recursive_minibuffers = 0; | |
1957 | ||
1958 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, | |
1959 | "Alist or obarray used for completion in the minibuffer.\n\ | |
1960 | This becomes the ALIST argument to `try-completion' and `all-completion'.\n\ | |
1961 | \n\ | |
1962 | The value may alternatively be a function, which is given three arguments:\n\ | |
1963 | STRING, the current buffer contents;\n\ | |
1964 | PREDICATE, the predicate for filtering possible matches;\n\ | |
1965 | CODE, which says what kind of things to do.\n\ | |
1966 | CODE can be nil, t or `lambda'.\n\ | |
1967 | nil means to return the best completion of STRING, or nil if there is none.\n\ | |
1968 | t means to return a list of all possible completions of STRING.\n\ | |
1969 | `lambda' means to return t if STRING is a valid completion as it stands."); | |
1970 | Vminibuffer_completion_table = Qnil; | |
1971 | ||
1972 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, | |
1973 | "Within call to `completing-read', this holds the PREDICATE argument."); | |
1974 | Vminibuffer_completion_predicate = Qnil; | |
1975 | ||
1976 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, | |
1977 | "Non-nil => demand confirmation of completion before exiting minibuffer."); | |
1978 | Vminibuffer_completion_confirm = Qnil; | |
1979 | ||
1980 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, | |
1981 | "Value that `help-form' takes on inside the minibuffer."); | |
1982 | Vminibuffer_help_form = Qnil; | |
1983 | ||
770970cb RS |
1984 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
1985 | "History list symbol to add minibuffer values to.\n\ | |
2fa2413b RS |
1986 | Each string of minibuffer input, as it appears on exit from the minibuffer,\n\ |
1987 | is added with\n\ | |
770970cb RS |
1988 | (set minibuffer-history-variable\n\ |
1989 | (cons STRING (symbol-value minibuffer-history-variable)))"); | |
5a866662 | 1990 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb RS |
1991 | |
1992 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, | |
1993 | "Current position of redoing in the history list."); | |
1994 | Vminibuffer_history_position = Qnil; | |
1995 | ||
6a9ee000 | 1996 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
e98bcc1a RS |
1997 | "*Non-nil means entering the minibuffer raises the minibuffer's frame.\n\ |
1998 | Some uses of the echo area also raise that frame (since they use it too)."); | |
6a9ee000 RS |
1999 | minibuffer_auto_raise = 0; |
2000 | ||
42006772 RS |
2001 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2002 | "List of regexps that should restrict possible completions."); | |
2003 | Vcompletion_regexp_list = Qnil; | |
2004 | ||
c3421833 RS |
2005 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
2006 | &minibuffer_allow_text_properties, | |
2007 | "Non-nil means `read-from-miniffer' should not discard text properties.\n\ | |
2008 | This also affects `read-string', but it does not affect `read-minibuffer',\n\ | |
2009 | `read-no-blanks-input', or any of the functions that do minibuffer input\n\ | |
2bfbde2b | 2010 | with completion; they always discard text properties."); |
c3421833 RS |
2011 | minibuffer_allow_text_properties = 0; |
2012 | ||
68313ed8 | 2013 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2014 | defsubr (&Sread_from_minibuffer); |
2015 | defsubr (&Seval_minibuffer); | |
2016 | defsubr (&Sread_minibuffer); | |
2017 | defsubr (&Sread_string); | |
2018 | defsubr (&Sread_command); | |
2019 | defsubr (&Sread_variable); | |
2020 | defsubr (&Sread_buffer); | |
2021 | defsubr (&Sread_no_blanks_input); | |
2022 | defsubr (&Sminibuffer_depth); | |
37e9a934 KH |
2023 | defsubr (&Sminibuffer_prompt); |
2024 | defsubr (&Sminibuffer_prompt_width); | |
f927c5ae JB |
2025 | |
2026 | defsubr (&Stry_completion); | |
2027 | defsubr (&Sall_completions); | |
2028 | defsubr (&Scompleting_read); | |
2029 | defsubr (&Sminibuffer_complete); | |
2030 | defsubr (&Sminibuffer_complete_word); | |
2031 | defsubr (&Sminibuffer_complete_and_exit); | |
2032 | defsubr (&Sdisplay_completion_list); | |
2033 | defsubr (&Sminibuffer_completion_help); | |
2034 | ||
2035 | defsubr (&Sself_insert_and_exit); | |
2036 | defsubr (&Sexit_minibuffer); | |
2037 | ||
2d955a50 | 2038 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2039 | } |
2040 | ||
2041 | keys_of_minibuf () | |
2042 | { | |
2043 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2044 | "abort-recursive-edit"); | |
2045 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2046 | "exit-minibuffer"); | |
2047 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2048 | "exit-minibuffer"); | |
2049 | ||
2050 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('g'), | |
2051 | "abort-recursive-edit"); | |
2052 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('m'), | |
2053 | "exit-minibuffer"); | |
2054 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('j'), | |
2055 | "exit-minibuffer"); | |
2056 | ||
2057 | initial_define_key (Vminibuffer_local_ns_map, ' ', | |
2058 | "exit-minibuffer"); | |
2059 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2060 | "exit-minibuffer"); | |
2061 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2062 | "self-insert-and-exit"); | |
2063 | ||
2064 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('g'), | |
2065 | "abort-recursive-edit"); | |
2066 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('m'), | |
2067 | "exit-minibuffer"); | |
2068 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('j'), | |
2069 | "exit-minibuffer"); | |
2070 | ||
2071 | initial_define_key (Vminibuffer_local_completion_map, '\t', | |
2072 | "minibuffer-complete"); | |
2073 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2074 | "minibuffer-complete-word"); | |
2075 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2076 | "minibuffer-completion-help"); | |
2077 | ||
2078 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('g'), | |
2079 | "abort-recursive-edit"); | |
2080 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), | |
2081 | "minibuffer-complete-and-exit"); | |
2082 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2083 | "minibuffer-complete-and-exit"); | |
2084 | initial_define_key (Vminibuffer_local_must_match_map, '\t', | |
2085 | "minibuffer-complete"); | |
2086 | initial_define_key (Vminibuffer_local_must_match_map, ' ', | |
2087 | "minibuffer-complete-word"); | |
2088 | initial_define_key (Vminibuffer_local_must_match_map, '?', | |
2089 | "minibuffer-completion-help"); | |
2090 | } |