Commit | Line | Data |
---|---|---|
f927c5ae | 1 | /* Minibuffer input and completion. |
526a058f GM |
2 | Copyright (C) 1985, 1986, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
3 | 2000, 2001 Free Software Foundation, Inc. | |
f927c5ae JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ffd56f97 | 9 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
f927c5ae JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
3f708f4c | 24 | #include <stdio.h> |
af52c32d | 25 | |
f927c5ae JB |
26 | #include "lisp.h" |
27 | #include "commands.h" | |
28 | #include "buffer.h" | |
d50a3d2a | 29 | #include "charset.h" |
f927c5ae | 30 | #include "dispextern.h" |
2538fae4 | 31 | #include "keyboard.h" |
ff11dfa1 | 32 | #include "frame.h" |
f927c5ae JB |
33 | #include "window.h" |
34 | #include "syntax.h" | |
0c21eeeb | 35 | #include "intervals.h" |
8feddab4 | 36 | #include "keymap.h" |
f927c5ae | 37 | |
a4e71d81 KH |
38 | extern int quit_char; |
39 | ||
f927c5ae | 40 | /* List of buffers for use as minibuffers. |
4d04c1f1 KH |
41 | The first element of the list is used for the outermost minibuffer |
42 | invocation, the next element is used for a recursive minibuffer | |
43 | invocation, etc. The list is extended at the end as deeper | |
44 | minibuffer recursions are encountered. */ | |
279cf52c | 45 | |
f927c5ae JB |
46 | Lisp_Object Vminibuffer_list; |
47 | ||
4d04c1f1 | 48 | /* Data to remember during recursive minibuffer invocations */ |
279cf52c | 49 | |
4d04c1f1 | 50 | Lisp_Object minibuf_save_list; |
f927c5ae JB |
51 | |
52 | /* Depth in minibuffer invocations. */ | |
279cf52c | 53 | |
f927c5ae JB |
54 | int minibuf_level; |
55 | ||
77aa8edf | 56 | /* Nonzero means display completion help for invalid input. */ |
279cf52c | 57 | |
739cc391 | 58 | Lisp_Object Vcompletion_auto_help; |
f927c5ae | 59 | |
77aa8edf | 60 | /* The maximum length of a minibuffer history. */ |
279cf52c | 61 | |
77aa8edf RS |
62 | Lisp_Object Qhistory_length, Vhistory_length; |
63 | ||
b278606c | 64 | /* Fread_minibuffer leaves the input here as a string. */ |
279cf52c | 65 | |
f927c5ae JB |
66 | Lisp_Object last_minibuf_string; |
67 | ||
68 | /* Nonzero means let functions called when within a minibuffer | |
69 | invoke recursive minibuffers (to read arguments, or whatever) */ | |
279cf52c | 70 | |
f927c5ae JB |
71 | int enable_recursive_minibuffers; |
72 | ||
c3421833 RS |
73 | /* Nonzero means don't ignore text properties |
74 | in Fread_from_minibuffer. */ | |
279cf52c | 75 | |
c3421833 RS |
76 | int minibuffer_allow_text_properties; |
77 | ||
f927c5ae JB |
78 | /* help-form is bound to this while in the minibuffer. */ |
79 | ||
80 | Lisp_Object Vminibuffer_help_form; | |
81 | ||
770970cb RS |
82 | /* Variable which is the history list to add minibuffer values to. */ |
83 | ||
84 | Lisp_Object Vminibuffer_history_variable; | |
85 | ||
86 | /* Current position in the history list (adjusted by M-n and M-p). */ | |
87 | ||
88 | Lisp_Object Vminibuffer_history_position; | |
89 | ||
cc64f5c9 MB |
90 | /* Text properties that are added to minibuffer prompts. |
91 | These are in addition to the basic `field' property, and stickiness | |
92 | properties. */ | |
93 | ||
94 | Lisp_Object Vminibuffer_prompt_properties; | |
95 | ||
406e55df | 96 | Lisp_Object Qminibuffer_history, Qbuffer_name_history; |
770970cb | 97 | |
719b4a40 RS |
98 | Lisp_Object Qread_file_name_internal; |
99 | ||
177aecf9 | 100 | /* Normal hooks for entry to and exit from minibuffer. */ |
5c781212 RS |
101 | |
102 | Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook; | |
177aecf9 | 103 | Lisp_Object Qminibuffer_exit_hook, Vminibuffer_exit_hook; |
5c781212 | 104 | |
eebbfb01 KH |
105 | /* Function to call to read a buffer name. */ |
106 | Lisp_Object Vread_buffer_function; | |
107 | ||
f927c5ae JB |
108 | /* Nonzero means completion ignores case. */ |
109 | ||
110 | int completion_ignore_case; | |
111 | ||
42006772 RS |
112 | /* List of regexps that should restrict possible completions. */ |
113 | ||
114 | Lisp_Object Vcompletion_regexp_list; | |
115 | ||
6a9ee000 RS |
116 | /* Nonzero means raise the minibuffer frame when the minibuffer |
117 | is entered. */ | |
118 | ||
119 | int minibuffer_auto_raise; | |
120 | ||
f927c5ae JB |
121 | /* If last completion attempt reported "Complete but not unique" |
122 | then this is the string completed then; otherwise this is nil. */ | |
123 | ||
124 | static Lisp_Object last_exact_completion; | |
125 | ||
2cb6da5c RS |
126 | /* Non-nil means it is the window for C-M-v to scroll |
127 | when the minibuffer is selected. */ | |
279cf52c | 128 | |
2cb6da5c | 129 | extern Lisp_Object Vminibuf_scroll_window; |
30e13e56 RS |
130 | |
131 | extern Lisp_Object Voverriding_local_map; | |
cee54539 | 132 | |
5744fa7c RS |
133 | Lisp_Object Quser_variable_p; |
134 | ||
135 | Lisp_Object Qminibuffer_default; | |
136 | ||
cee54539 KH |
137 | Lisp_Object Qcurrent_input_method, Qactivate_input_method; |
138 | ||
5744fa7c | 139 | extern Lisp_Object Qmouse_face; |
279cf52c | 140 | |
8e9968c6 | 141 | extern Lisp_Object Qfield; |
f927c5ae | 142 | \f |
89fdc4a0 KH |
143 | /* Put minibuf on currently selected frame's minibuffer. |
144 | We do this whenever the user starts a new minibuffer | |
145 | or when a minibuffer exits. */ | |
146 | ||
147 | void | |
148 | choose_minibuf_frame () | |
149 | { | |
a4aafc54 GM |
150 | if (FRAMEP (selected_frame) |
151 | && FRAME_LIVE_P (XFRAME (selected_frame)) | |
152 | && !EQ (minibuf_window, XFRAME (selected_frame)->minibuffer_window)) | |
89fdc4a0 | 153 | { |
a4aafc54 GM |
154 | struct frame *sf = XFRAME (selected_frame); |
155 | Lisp_Object buffer; | |
156 | ||
89fdc4a0 KH |
157 | /* I don't think that any frames may validly have a null minibuffer |
158 | window anymore. */ | |
a4aafc54 | 159 | if (NILP (sf->minibuffer_window)) |
89fdc4a0 KH |
160 | abort (); |
161 | ||
a4aafc54 GM |
162 | /* Under X, we come here with minibuf_window being the |
163 | minibuffer window of the unused termcap window created in | |
164 | init_window_once. That window doesn't have a buffer. */ | |
165 | buffer = XWINDOW (minibuf_window)->buffer; | |
166 | if (BUFFERP (buffer)) | |
167 | Fset_window_buffer (sf->minibuffer_window, buffer); | |
168 | minibuf_window = sf->minibuffer_window; | |
89fdc4a0 | 169 | } |
914860c2 RS |
170 | |
171 | /* Make sure no other frame has a minibuffer as its selected window, | |
172 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
173 | confusing. Only allow the selected frame to do this, |
174 | and that only if the minibuffer is active. */ | |
914860c2 RS |
175 | { |
176 | Lisp_Object tail, frame; | |
177 | ||
178 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 | 179 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
a4aafc54 | 180 | && !(EQ (frame, selected_frame) |
07d402c8 | 181 | && minibuf_level > 0)) |
914860c2 RS |
182 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
183 | } | |
89fdc4a0 | 184 | } |
68313ed8 | 185 | |
0c94f256 RS |
186 | Lisp_Object |
187 | choose_minibuf_frame_1 (ignore) | |
188 | Lisp_Object ignore; | |
189 | { | |
190 | choose_minibuf_frame (); | |
191 | return Qnil; | |
192 | } | |
193 | ||
68313ed8 RS |
194 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
195 | Sset_minibuffer_window, 1, 1, 0, | |
af52c32d | 196 | doc: /* Specify which minibuffer window to use for the minibuffer. |
a1f17501 | 197 | This effects where the minibuffer is displayed if you put text in it |
af52c32d MB |
198 | without invoking the usual minibuffer commands. */) |
199 | (window) | |
68313ed8 RS |
200 | Lisp_Object window; |
201 | { | |
b7826503 | 202 | CHECK_WINDOW (window); |
68313ed8 RS |
203 | if (! MINI_WINDOW_P (XWINDOW (window))) |
204 | error ("Window is not a minibuffer window"); | |
205 | ||
206 | minibuf_window = window; | |
207 | ||
208 | return window; | |
209 | } | |
210 | ||
89fdc4a0 | 211 | \f |
f927c5ae JB |
212 | /* Actual minibuffer invocation. */ |
213 | ||
af2b7cd5 RS |
214 | static Lisp_Object read_minibuf_unwind P_ ((Lisp_Object)); |
215 | static Lisp_Object read_minibuf P_ ((Lisp_Object, Lisp_Object, | |
216 | Lisp_Object, Lisp_Object, | |
217 | int, Lisp_Object, | |
218 | Lisp_Object, Lisp_Object, | |
219 | int, int)); | |
edfef199 GM |
220 | static Lisp_Object read_minibuf_noninteractive P_ ((Lisp_Object, Lisp_Object, |
221 | Lisp_Object, Lisp_Object, | |
222 | int, Lisp_Object, | |
223 | Lisp_Object, Lisp_Object, | |
224 | int, int)); | |
225 | static Lisp_Object string_to_object P_ ((Lisp_Object, Lisp_Object)); | |
226 | ||
227 | ||
228 | /* Read a Lisp object from VAL and return it. If VAL is an empty | |
229 | string, and DEFALT is a string, read from DEFALT instead of VAL. */ | |
230 | ||
231 | static Lisp_Object | |
232 | string_to_object (val, defalt) | |
233 | Lisp_Object val, defalt; | |
234 | { | |
235 | struct gcpro gcpro1, gcpro2; | |
236 | Lisp_Object expr_and_pos; | |
237 | int pos; | |
238 | ||
239 | GCPRO2 (val, defalt); | |
240 | ||
241 | if (STRINGP (val) && XSTRING (val)->size == 0 | |
242 | && STRINGP (defalt)) | |
243 | val = defalt; | |
244 | ||
245 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); | |
246 | pos = XINT (Fcdr (expr_and_pos)); | |
247 | if (pos != XSTRING (val)->size) | |
248 | { | |
249 | /* Ignore trailing whitespace; any other trailing junk | |
250 | is an error. */ | |
251 | int i; | |
252 | pos = string_char_to_byte (val, pos); | |
253 | for (i = pos; i < STRING_BYTES (XSTRING (val)); i++) | |
254 | { | |
255 | int c = XSTRING (val)->data[i]; | |
256 | if (c != ' ' && c != '\t' && c != '\n') | |
257 | error ("Trailing garbage following expression"); | |
258 | } | |
259 | } | |
260 | ||
261 | val = Fcar (expr_and_pos); | |
262 | RETURN_UNGCPRO (val); | |
263 | } | |
264 | ||
265 | ||
266 | /* Like read_minibuf but reading from stdin. This function is called | |
267 | from read_minibuf to do the job if noninteractive. */ | |
268 | ||
269 | static Lisp_Object | |
270 | read_minibuf_noninteractive (map, initial, prompt, backup_n, expflag, | |
271 | histvar, histpos, defalt, allow_props, | |
272 | inherit_input_method) | |
273 | Lisp_Object map; | |
274 | Lisp_Object initial; | |
275 | Lisp_Object prompt; | |
276 | Lisp_Object backup_n; | |
277 | int expflag; | |
278 | Lisp_Object histvar; | |
279 | Lisp_Object histpos; | |
280 | Lisp_Object defalt; | |
281 | int allow_props; | |
282 | int inherit_input_method; | |
283 | { | |
284 | int size, len; | |
285 | char *line, *s; | |
edfef199 GM |
286 | Lisp_Object val; |
287 | ||
288 | fprintf (stdout, "%s", XSTRING (prompt)->data); | |
289 | fflush (stdout); | |
290 | ||
6bbd7a29 | 291 | val = Qnil; |
edfef199 GM |
292 | size = 100; |
293 | len = 0; | |
294 | line = (char *) xmalloc (size * sizeof *line); | |
295 | while ((s = fgets (line + len, size - len, stdin)) != NULL | |
296 | && (len = strlen (line), | |
297 | len == size - 1 && line[len - 1] != '\n')) | |
298 | { | |
299 | size *= 2; | |
300 | line = (char *) xrealloc (line, size); | |
301 | } | |
302 | ||
303 | if (s) | |
304 | { | |
305 | len = strlen (line); | |
306 | ||
307 | if (len > 0 && line[len - 1] == '\n') | |
308 | line[--len] = '\0'; | |
309 | ||
310 | val = build_string (line); | |
311 | xfree (line); | |
312 | } | |
313 | else | |
314 | { | |
315 | xfree (line); | |
316 | error ("Error reading from stdin"); | |
317 | } | |
318 | ||
319 | /* If Lisp form desired instead of string, parse it. */ | |
320 | if (expflag) | |
321 | val = string_to_object (val, defalt); | |
322 | ||
323 | return val; | |
324 | } | |
325 | ||
f927c5ae | 326 | |
a346ec72 MB |
327 | DEFUN ("minibuffer-prompt-end", Fminibuffer_prompt_end, |
328 | Sminibuffer_prompt_end, 0, 0, 0, | |
af52c32d MB |
329 | doc: /* Return the buffer position of the end of the minibuffer prompt. |
330 | Return (point-min) if current buffer is not a mini-buffer. */) | |
331 | () | |
a346ec72 MB |
332 | { |
333 | /* This function is written to be most efficient when there's a prompt. */ | |
334 | Lisp_Object beg = make_number (BEGV); | |
f7793dfb | 335 | Lisp_Object end = Ffield_end (beg, Qnil, Qnil); |
a346ec72 MB |
336 | |
337 | if (XINT (end) == ZV && NILP (Fget_char_property (beg, Qfield, Qnil))) | |
b056f36d | 338 | return beg; |
a346ec72 MB |
339 | else |
340 | return end; | |
341 | } | |
342 | ||
343 | DEFUN ("minibuffer-contents", Fminibuffer_contents, | |
344 | Sminibuffer_contents, 0, 0, 0, | |
029a305c | 345 | doc: /* Return the user input in a minibuffer as a string. |
af52c32d MB |
346 | The current buffer must be a minibuffer. */) |
347 | () | |
a346ec72 MB |
348 | { |
349 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
350 | return make_buffer_string (prompt_end, ZV, 1); | |
351 | } | |
352 | ||
353 | DEFUN ("minibuffer-contents-no-properties", Fminibuffer_contents_no_properties, | |
354 | Sminibuffer_contents_no_properties, 0, 0, 0, | |
029a305c | 355 | doc: /* Return the user input in a minibuffer as a string, without text-properties. |
af52c32d MB |
356 | The current buffer must be a minibuffer. */) |
357 | () | |
a346ec72 MB |
358 | { |
359 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
360 | return make_buffer_string (prompt_end, ZV, 0); | |
361 | } | |
362 | ||
363 | DEFUN ("delete-minibuffer-contents", Fdelete_minibuffer_contents, | |
364 | Sdelete_minibuffer_contents, 0, 0, 0, | |
af52c32d MB |
365 | doc: /* Delete all user input in a minibuffer. |
366 | The current buffer must be a minibuffer. */) | |
367 | () | |
a346ec72 MB |
368 | { |
369 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
370 | if (prompt_end < ZV) | |
371 | del_range (prompt_end, ZV); | |
372 | return Qnil; | |
373 | } | |
374 | ||
375 | ||
770970cb | 376 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
a9c26562 | 377 | (a string), putting point minus BACKUP_N bytes from the end of INITIAL, |
770970cb | 378 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 379 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
380 | |
381 | Normally return the result as a string (the text that was read), | |
3ab14176 | 382 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
383 | If HISTVAR is given, save the value read on that history only if it doesn't |
384 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 385 | the list as the string that was read. |
770970cb | 386 | |
c3421833 RS |
387 | DEFALT specifies te default value for the sake of history commands. |
388 | ||
cee54539 KH |
389 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
390 | ||
391 | if INHERIT_INPUT_METHOD is nonzeor, the minibuffer inherit the | |
392 | current input method. */ | |
e5d4686b RS |
393 | |
394 | static Lisp_Object | |
395 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 396 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
397 | Lisp_Object map; |
398 | Lisp_Object initial; | |
399 | Lisp_Object prompt; | |
5061d9c3 | 400 | Lisp_Object backup_n; |
f927c5ae | 401 | int expflag; |
770970cb RS |
402 | Lisp_Object histvar; |
403 | Lisp_Object histpos; | |
e5d4686b | 404 | Lisp_Object defalt; |
af2b7cd5 | 405 | int allow_props; |
cee54539 | 406 | int inherit_input_method; |
f927c5ae | 407 | { |
00a34088 | 408 | Lisp_Object val; |
f927c5ae | 409 | int count = specpdl_ptr - specpdl; |
cee54539 KH |
410 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
411 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 412 | Lisp_Object enable_multibyte; |
04012254 | 413 | extern Lisp_Object Qfront_sticky; |
fbd1209a | 414 | extern Lisp_Object Qrear_nonsticky; |
00a34088 | 415 | |
e5d4686b RS |
416 | specbind (Qminibuffer_default, defalt); |
417 | ||
08f7d623 | 418 | single_kboard_state (); |
e5baa1a7 | 419 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
420 | if (display_hourglass_p) |
421 | cancel_hourglass (); | |
e5baa1a7 | 422 | #endif |
718d3251 | 423 | |
00a34088 | 424 | val = Qnil; |
57ceaa8a | 425 | ambient_dir = current_buffer->directory; |
cee54539 | 426 | input_method = Qnil; |
c75000c7 | 427 | enable_multibyte = Qnil; |
57ceaa8a | 428 | |
00a34088 RS |
429 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
430 | store them away before we can GC. Don't need to protect | |
431 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 432 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 433 | |
7510b296 | 434 | if (!STRINGP (prompt)) |
f927c5ae JB |
435 | prompt = build_string (""); |
436 | ||
f927c5ae | 437 | if (!enable_recursive_minibuffers |
be15a518 RS |
438 | && minibuf_level > 0) |
439 | { | |
440 | if (EQ (selected_window, minibuf_window)) | |
441 | error ("Command attempted to use minibuffer while in minibuffer"); | |
442 | else | |
443 | /* If we're in another window, cancel the minibuffer that's active. */ | |
444 | Fthrow (Qexit, | |
445 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
446 | } | |
f927c5ae | 447 | |
edfef199 | 448 | if (noninteractive) |
c28b847b GM |
449 | { |
450 | val = read_minibuf_noninteractive (map, initial, prompt, backup_n, | |
451 | expflag, histvar, histpos, defalt, | |
452 | allow_props, inherit_input_method); | |
453 | return unbind_to (count, val); | |
454 | } | |
edfef199 | 455 | |
748dc60a | 456 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 457 | |
c5b6b680 RS |
458 | choose_minibuf_frame (); |
459 | ||
0c94f256 RS |
460 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
461 | ||
f927c5ae | 462 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
463 | Fcurrent_window_configuration (Qnil)); |
464 | ||
ff11dfa1 JB |
465 | /* If the minibuffer window is on a different frame, save that |
466 | frame's configuration too. */ | |
75f00e72 | 467 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
a4aafc54 | 468 | if (!EQ (mini_frame, selected_frame)) |
5061d9c3 RS |
469 | record_unwind_protect (Fset_window_configuration, |
470 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
471 | |
472 | /* If the minibuffer is on an iconified or invisible frame, | |
473 | make it visible now. */ | |
474 | Fmake_frame_visible (mini_frame); | |
475 | ||
6a9ee000 RS |
476 | if (minibuffer_auto_raise) |
477 | Fraise_frame (mini_frame); | |
f927c5ae | 478 | |
748dc60a RS |
479 | /* We have to do this after saving the window configuration |
480 | since that is what restores the current buffer. */ | |
481 | ||
482 | /* Arrange to restore a number of minibuffer-related variables. | |
483 | We could bind each variable separately, but that would use lots of | |
484 | specpdl slots. */ | |
485 | minibuf_save_list | |
486 | = Fcons (Voverriding_local_map, | |
487 | Fcons (minibuf_window, minibuf_save_list)); | |
488 | minibuf_save_list | |
489 | = Fcons (minibuf_prompt, | |
490 | Fcons (make_number (minibuf_prompt_width), | |
491 | Fcons (Vhelp_form, | |
492 | Fcons (Vcurrent_prefix_arg, | |
493 | Fcons (Vminibuffer_history_position, | |
494 | Fcons (Vminibuffer_history_variable, | |
495 | minibuf_save_list)))))); | |
496 | ||
497 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
498 | minibuf_level++; | |
499 | ||
500 | /* Now that we can restore all those variables, start changing them. */ | |
501 | ||
1e3f16d5 | 502 | minibuf_prompt_width = 0; |
748dc60a RS |
503 | minibuf_prompt = Fcopy_sequence (prompt); |
504 | Vminibuffer_history_position = histpos; | |
505 | Vminibuffer_history_variable = histvar; | |
506 | Vhelp_form = Vminibuffer_help_form; | |
507 | ||
cee54539 | 508 | if (inherit_input_method) |
c75000c7 | 509 | { |
fd771ceb | 510 | /* `current-input-method' is buffer local. So, remember it in |
c75000c7 RS |
511 | INPUT_METHOD before changing the current buffer. */ |
512 | input_method = Fsymbol_value (Qcurrent_input_method); | |
513 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
514 | } | |
cee54539 | 515 | |
748dc60a RS |
516 | /* Switch to the minibuffer. */ |
517 | ||
4f69d8f6 RS |
518 | minibuffer = get_minibuffer (minibuf_level); |
519 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
520 | |
521 | /* The current buffer's default directory is usually the right thing | |
522 | for our minibuffer here. However, if you're typing a command at | |
523 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
524 | the current_buffer, so reset_buffer leaves buf's default | |
525 | directory unchanged. This is a bummer when you've just started | |
526 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
527 | you think of something better to do? Find another buffer with a | |
528 | better directory, and use that one instead. */ | |
748dc60a RS |
529 | if (STRINGP (ambient_dir)) |
530 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
531 | else |
532 | { | |
533 | Lisp_Object buf_list; | |
534 | ||
535 | for (buf_list = Vbuffer_alist; | |
536 | CONSP (buf_list); | |
7539e11f | 537 | buf_list = XCDR (buf_list)) |
64a3a3c0 | 538 | { |
1e62748e | 539 | Lisp_Object other_buf; |
64a3a3c0 | 540 | |
7539e11f | 541 | other_buf = XCDR (XCAR (buf_list)); |
7510b296 | 542 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
543 | { |
544 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
545 | break; | |
546 | } | |
547 | } | |
548 | } | |
549 | ||
a4aafc54 GM |
550 | if (!EQ (mini_frame, selected_frame)) |
551 | Fredirect_frame_focus (selected_frame, mini_frame); | |
43bad991 | 552 | |
f927c5ae JB |
553 | Vminibuf_scroll_window = selected_window; |
554 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); | |
f927c5ae | 555 | Fselect_window (minibuf_window); |
5a866662 | 556 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 557 | |
748dc60a RS |
558 | Fmake_local_variable (Qprint_escape_newlines); |
559 | print_escape_newlines = 1; | |
560 | ||
561 | /* Erase the buffer. */ | |
59115a22 | 562 | { |
a41edd99 | 563 | int count1 = BINDING_STACK_SIZE (); |
59115a22 | 564 | specbind (Qinhibit_read_only, Qt); |
a41edd99 | 565 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
566 | Ferase_buffer (); |
567 | unbind_to (count1, Qnil); | |
568 | } | |
569 | ||
279cf52c GM |
570 | if (!NILP (current_buffer->enable_multibyte_characters) |
571 | && ! STRING_MULTIBYTE (minibuf_prompt)) | |
572 | minibuf_prompt = Fstring_make_multibyte (minibuf_prompt); | |
573 | ||
279cf52c GM |
574 | /* Insert the prompt, record where it ends. */ |
575 | Finsert (1, &minibuf_prompt); | |
279cf52c GM |
576 | if (PT > BEG) |
577 | { | |
fbd1209a | 578 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 579 | Qfront_sticky, Qt, Qnil); |
fbd1209a | 580 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 581 | Qrear_nonsticky, Qt, Qnil); |
8e9968c6 GM |
582 | Fput_text_property (make_number (BEG), make_number (PT), |
583 | Qfield, Qt, Qnil); | |
cc64f5c9 MB |
584 | Fadd_text_properties (make_number (BEG), make_number (PT), |
585 | Vminibuffer_prompt_properties, Qnil); | |
279cf52c | 586 | } |
1e3f16d5 GM |
587 | |
588 | minibuf_prompt_width = current_column (); | |
279cf52c | 589 | |
094d9789 RS |
590 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
591 | if (inherit_input_method) | |
592 | current_buffer->enable_multibyte_characters = enable_multibyte; | |
593 | ||
748dc60a | 594 | /* Put in the initial input. */ |
56a98455 | 595 | if (!NILP (initial)) |
f927c5ae JB |
596 | { |
597 | Finsert (1, &initial); | |
a9c26562 RS |
598 | if (INTEGERP (backup_n)) |
599 | Fforward_char (backup_n); | |
f927c5ae JB |
600 | } |
601 | ||
39e98b38 | 602 | clear_message (1, 1); |
f927c5ae JB |
603 | current_buffer->keymap = map; |
604 | ||
cee54539 | 605 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 606 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
607 | call1 (Qactivate_input_method, input_method); |
608 | ||
5c781212 RS |
609 | /* Run our hook, but not if it is empty. |
610 | (run-hooks would do nothing if it is empty, | |
fd771ceb | 611 | but it's important to save time here in the usual case.) */ |
92d3b06e RS |
612 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
613 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
614 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
615 | ||
4e6b7204 MB |
616 | /* Don't allow the user to undo past this point. */ |
617 | current_buffer->undo_list = Qnil; | |
618 | ||
f927c5ae JB |
619 | recursive_edit_1 (); |
620 | ||
621 | /* If cursor is on the minibuffer line, | |
622 | show the user we have exited by putting it in column 0. */ | |
279cf52c | 623 | if (XWINDOW (minibuf_window)->cursor.vpos >= 0 |
f927c5ae JB |
624 | && !noninteractive) |
625 | { | |
279cf52c GM |
626 | XWINDOW (minibuf_window)->cursor.hpos = 0; |
627 | XWINDOW (minibuf_window)->cursor.x = 0; | |
628 | XWINDOW (minibuf_window)->must_be_updated_p = 1; | |
a4aafc54 | 629 | update_frame (XFRAME (selected_frame), 1, 1); |
337aaf1f GM |
630 | if (rif && rif->flush_display) |
631 | rif->flush_display (XFRAME (XWINDOW (minibuf_window)->frame)); | |
f927c5ae JB |
632 | } |
633 | ||
c3421833 | 634 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 635 | Fset_buffer (minibuffer); |
be95a9b6 | 636 | if (allow_props) |
a346ec72 | 637 | val = Fminibuffer_contents (); |
be95a9b6 | 638 | else |
a346ec72 | 639 | val = Fminibuffer_contents_no_properties (); |
770970cb | 640 | |
b278606c | 641 | /* VAL is the string of minibuffer text. */ |
7019cca7 | 642 | |
b278606c BF |
643 | last_minibuf_string = val; |
644 | ||
3ab14176 | 645 | /* Add the value to the appropriate history list unless it is empty. */ |
9f6131cf | 646 | if (XSTRING (val)->size != 0 |
c6d65724 | 647 | && SYMBOLP (Vminibuffer_history_variable)) |
3ab14176 KH |
648 | { |
649 | /* If the caller wanted to save the value read on a history list, | |
650 | then do so if the value is not already the front of the list. */ | |
651 | Lisp_Object histval; | |
c6d65724 RS |
652 | |
653 | /* If variable is unbound, make it nil. */ | |
f5c1dd0d | 654 | if (EQ (SYMBOL_VALUE (Vminibuffer_history_variable), Qunbound)) |
c6d65724 RS |
655 | Fset (Vminibuffer_history_variable, Qnil); |
656 | ||
3ab14176 KH |
657 | histval = Fsymbol_value (Vminibuffer_history_variable); |
658 | ||
659 | /* The value of the history variable must be a cons or nil. Other | |
660 | values are unacceptable. We silently ignore these values. */ | |
661 | if (NILP (histval) | |
9f6131cf RS |
662 | || (CONSP (histval) |
663 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
664 | { |
665 | Lisp_Object length; | |
666 | ||
667 | histval = Fcons (last_minibuf_string, histval); | |
668 | Fset (Vminibuffer_history_variable, histval); | |
669 | ||
670 | /* Truncate if requested. */ | |
671 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
672 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
673 | if (INTEGERP (length)) |
674 | { | |
675 | if (XINT (length) <= 0) | |
676 | Fset (Vminibuffer_history_variable, Qnil); | |
677 | else | |
678 | { | |
679 | Lisp_Object temp; | |
680 | ||
681 | temp = Fnthcdr (Fsub1 (length), histval); | |
682 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
683 | } | |
684 | } | |
77aa8edf | 685 | } |
9f6131cf RS |
686 | } |
687 | ||
688 | /* If Lisp form desired instead of string, parse it. */ | |
689 | if (expflag) | |
edfef199 | 690 | val = string_to_object (val, defalt); |
3ab14176 | 691 | |
00a34088 RS |
692 | /* The appropriate frame will get selected |
693 | in set-window-configuration. */ | |
694 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
695 | } |
696 | ||
697 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
698 | depth = 0 is the lowest allowed argument, and that is the value | |
699 | used for nonrecursive minibuffer invocations */ | |
700 | ||
701 | Lisp_Object | |
702 | get_minibuffer (depth) | |
703 | int depth; | |
704 | { | |
705 | Lisp_Object tail, num, buf; | |
9f6c23bc | 706 | char name[24]; |
f927c5ae JB |
707 | extern Lisp_Object nconc2 (); |
708 | ||
5a866662 | 709 | XSETFASTINT (num, depth); |
f927c5ae | 710 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 711 | if (NILP (tail)) |
f927c5ae JB |
712 | { |
713 | tail = Fcons (Qnil, Qnil); | |
714 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
715 | } | |
716 | buf = Fcar (tail); | |
56a98455 | 717 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
718 | { |
719 | sprintf (name, " *Minibuf-%d*", depth); | |
720 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
721 | |
722 | /* Although the buffer's name starts with a space, undo should be | |
723 | enabled in it. */ | |
724 | Fbuffer_enable_undo (buf); | |
725 | ||
f3fbd155 | 726 | XSETCAR (tail, buf); |
f927c5ae JB |
727 | } |
728 | else | |
5956f71d | 729 | { |
6b3faad8 RS |
730 | int count = specpdl_ptr - specpdl; |
731 | ||
5956f71d | 732 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
733 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
734 | Fset_buffer (buf); | |
735 | Fkill_all_local_variables (); | |
736 | unbind_to (count, Qnil); | |
5956f71d | 737 | } |
64a3a3c0 | 738 | |
f927c5ae JB |
739 | return buf; |
740 | } | |
741 | ||
279cf52c GM |
742 | /* This function is called on exiting minibuffer, whether normally or |
743 | not, and it restores the current window, buffer, etc. */ | |
f927c5ae | 744 | |
9d815fd9 | 745 | static Lisp_Object |
43bad991 JB |
746 | read_minibuf_unwind (data) |
747 | Lisp_Object data; | |
f927c5ae | 748 | { |
c24e1160 | 749 | Lisp_Object old_deactivate_mark; |
59115a22 | 750 | Lisp_Object window; |
c24e1160 | 751 | |
0a1dd1c5 RS |
752 | /* We are exiting the minibuffer one way or the other, |
753 | so run the hook. */ | |
754 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
755 | && !NILP (Vrun_hooks)) | |
060ffec1 | 756 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 757 | |
f927c5ae | 758 | /* If this was a recursive minibuffer, |
59115a22 | 759 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 760 | minibuf_level--; |
f927c5ae | 761 | |
59115a22 | 762 | window = minibuf_window; |
279cf52c GM |
763 | /* To keep things predictable, in case it matters, let's be in the |
764 | minibuffer when we reset the relevant variables. */ | |
59115a22 RS |
765 | Fset_buffer (XWINDOW (window)->buffer); |
766 | ||
767 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
768 | minibuf_prompt = Fcar (minibuf_save_list); |
769 | minibuf_save_list = Fcdr (minibuf_save_list); | |
770 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
771 | minibuf_save_list = Fcdr (minibuf_save_list); | |
772 | Vhelp_form = Fcar (minibuf_save_list); | |
773 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 774 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
775 | minibuf_save_list = Fcdr (minibuf_save_list); |
776 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
777 | minibuf_save_list = Fcdr (minibuf_save_list); | |
778 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
779 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 780 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 781 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
782 | #if 0 |
783 | temp = Fcar (minibuf_save_list); | |
784 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
785 | minibuf_window = temp; | |
786 | #endif | |
30e13e56 | 787 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
788 | |
789 | /* Erase the minibuffer we were using at this level. */ | |
790 | { | |
791 | int count = specpdl_ptr - specpdl; | |
792 | /* Prevent error in erase-buffer. */ | |
793 | specbind (Qinhibit_read_only, Qt); | |
bd819d14 | 794 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
795 | old_deactivate_mark = Vdeactivate_mark; |
796 | Ferase_buffer (); | |
797 | Vdeactivate_mark = old_deactivate_mark; | |
798 | unbind_to (count, Qnil); | |
799 | } | |
800 | ||
544e358d GM |
801 | /* When we get to the outmost level, make sure we resize the |
802 | mini-window back to its normal size. */ | |
803 | if (minibuf_level == 0) | |
1e3f16d5 | 804 | resize_mini_window (XWINDOW (window), 0); |
544e358d | 805 | |
59115a22 RS |
806 | /* Make sure minibuffer window is erased, not ignored. */ |
807 | windows_or_buffers_changed++; | |
808 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 809 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 | 810 | return Qnil; |
f927c5ae JB |
811 | } |
812 | \f | |
b9d721de | 813 | |
cee54539 | 814 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
af52c32d | 815 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 PJ |
816 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string |
817 | to be inserted into the minibuffer before reading input. | |
818 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input | |
819 | is STRING, but point is placed at position POSITION in the minibuffer. | |
820 | Third arg KEYMAP is a keymap to use whilst reading; | |
821 | if omitted or nil, the default is `minibuffer-local-map'. | |
fd771ceb | 822 | If fourth arg READ is non-nil, then interpret the result as a Lisp object |
a1f17501 PJ |
823 | and return that object: |
824 | in other words, do `(car (read-from-string INPUT-STRING))' | |
825 | Fifth arg HIST, if non-nil, specifies a history list | |
826 | and optionally the initial position in the list. | |
827 | It can be a symbol, which is the history list variable to use, | |
828 | or it can be a cons cell (HISTVAR . HISTPOS). | |
829 | In that case, HISTVAR is the history list variable to use, | |
830 | and HISTPOS is the initial position (the position in the list | |
831 | which INITIAL-CONTENTS corresponds to). | |
832 | Positions are counted starting from 1 at the beginning of the list. | |
833 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is available | |
834 | for history commands; but `read-from-minibuffer' does NOT return DEFAULT-VALUE | |
835 | if the user enters empty input! It returns the empty string. | |
836 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 837 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
838 | If the variable `minibuffer-allow-text-properties' is non-nil, |
839 | then the string which is returned includes whatever text properties | |
af52c32d MB |
840 | were present in the minibuffer. Otherwise the value has no text properties. */) |
841 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
e5d4686b | 842 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 843 | Lisp_Object inherit_input_method; |
f927c5ae JB |
844 | { |
845 | int pos = 0; | |
e5d4686b | 846 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
847 | struct gcpro gcpro1; |
848 | ||
770970cb | 849 | position = Qnil; |
f927c5ae | 850 | |
b7826503 | 851 | CHECK_STRING (prompt); |
68e5a8a2 | 852 | if (!NILP (initial_contents)) |
f927c5ae | 853 | { |
7510b296 | 854 | if (CONSP (initial_contents)) |
770970cb | 855 | { |
68e5a8a2 RS |
856 | position = Fcdr (initial_contents); |
857 | initial_contents = Fcar (initial_contents); | |
770970cb | 858 | } |
b7826503 | 859 | CHECK_STRING (initial_contents); |
56a98455 | 860 | if (!NILP (position)) |
f927c5ae | 861 | { |
b7826503 | 862 | CHECK_NUMBER (position); |
f927c5ae | 863 | /* Convert to distance from end of input. */ |
18fef111 RS |
864 | if (XINT (position) < 1) |
865 | /* A number too small means the beginning of the string. */ | |
866 | pos = - XSTRING (initial_contents)->size; | |
867 | else | |
868 | pos = XINT (position) - 1 - XSTRING (initial_contents)->size; | |
f927c5ae JB |
869 | } |
870 | } | |
871 | ||
56a98455 | 872 | if (NILP (keymap)) |
f927c5ae JB |
873 | keymap = Vminibuffer_local_map; |
874 | else | |
02067692 | 875 | keymap = get_keymap (keymap, 1, 0); |
770970cb | 876 | |
7510b296 | 877 | if (SYMBOLP (hist)) |
770970cb RS |
878 | { |
879 | histvar = hist; | |
880 | histpos = Qnil; | |
881 | } | |
882 | else | |
883 | { | |
884 | histvar = Fcar_safe (hist); | |
885 | histpos = Fcdr_safe (hist); | |
886 | } | |
887 | if (NILP (histvar)) | |
888 | histvar = Qminibuffer_history; | |
889 | if (NILP (histpos)) | |
5a866662 | 890 | XSETFASTINT (histpos, 0); |
770970cb | 891 | |
1d8d92f4 | 892 | GCPRO1 (default_value); |
e5d4686b RS |
893 | val = read_minibuf (keymap, initial_contents, prompt, |
894 | make_number (pos), !NILP (read), | |
c3421833 | 895 | histvar, histpos, default_value, |
cee54539 KH |
896 | minibuffer_allow_text_properties, |
897 | !NILP (inherit_input_method)); | |
1d8d92f4 | 898 | UNGCPRO; |
e5d4686b | 899 | return val; |
f927c5ae JB |
900 | } |
901 | ||
902 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
af52c32d | 903 | doc: /* Return a Lisp object read using the minibuffer. |
a1f17501 | 904 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
af52c32d MB |
905 | is a string to insert in the minibuffer before reading. */) |
906 | (prompt, initial_contents) | |
f927c5ae JB |
907 | Lisp_Object prompt, initial_contents; |
908 | { | |
b7826503 | 909 | CHECK_STRING (prompt); |
56a98455 | 910 | if (!NILP (initial_contents)) |
b7826503 | 911 | CHECK_STRING (initial_contents); |
770970cb | 912 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 913 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 914 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
915 | } |
916 | ||
917 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
af52c32d | 918 | doc: /* Return value of Lisp expression read using the minibuffer. |
a1f17501 | 919 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
af52c32d MB |
920 | is a string to insert in the minibuffer before reading. */) |
921 | (prompt, initial_contents) | |
f927c5ae JB |
922 | Lisp_Object prompt, initial_contents; |
923 | { | |
924 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
925 | } | |
926 | ||
927 | /* Functions that use the minibuffer to read various things. */ | |
928 | ||
cee54539 | 929 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
af52c32d | 930 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 PJ |
931 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading. |
932 | The third arg HISTORY, if non-nil, specifies a history list | |
933 | and optionally the initial position in the list. | |
934 | See `read-from-minibuffer' for details of HISTORY argument. | |
935 | Fourth arg DEFAULT-VALUE is the default value. If non-nil, it is used | |
936 | for history commands, and as the value to return if the user enters | |
937 | the empty string. | |
938 | Fifth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 939 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 940 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 941 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 942 | Lisp_Object inherit_input_method; |
f927c5ae | 943 | { |
b9a86585 RS |
944 | Lisp_Object val; |
945 | val = Fread_from_minibuffer (prompt, initial_input, Qnil, | |
946 | Qnil, history, default_value, | |
947 | inherit_input_method); | |
948 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (default_value)) | |
949 | val = default_value; | |
950 | return val; | |
f927c5ae JB |
951 | } |
952 | ||
cee54539 | 953 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
af52c32d | 954 | doc: /* Read a string from the terminal, not allowing blanks. |
a1f17501 PJ |
955 | Prompt with PROMPT, and provide INITIAL as an initial value of the input string. |
956 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 957 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 958 | (prompt, initial, inherit_input_method) |
c923ccc9 | 959 | Lisp_Object prompt, initial, inherit_input_method; |
f927c5ae | 960 | { |
b7826503 | 961 | CHECK_STRING (prompt); |
c923ccc9 | 962 | if (! NILP (initial)) |
b7826503 | 963 | CHECK_STRING (initial); |
f927c5ae | 964 | |
c923ccc9 | 965 | return read_minibuf (Vminibuffer_local_ns_map, initial, prompt, Qnil, |
cee54539 KH |
966 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
967 | !NILP (inherit_input_method)); | |
f927c5ae JB |
968 | } |
969 | ||
e5d4686b | 970 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
af52c32d | 971 | doc: /* Read the name of a command and return as a symbol. |
fd771ceb | 972 | Prompt with PROMPT. By default, return DEFAULT-VALUE. */) |
af52c32d | 973 | (prompt, default_value) |
e5d4686b | 974 | Lisp_Object prompt, default_value; |
f927c5ae | 975 | { |
7c8d9931 RS |
976 | Lisp_Object name, default_string; |
977 | ||
978 | if (NILP (default_value)) | |
979 | default_string = Qnil; | |
980 | else if (SYMBOLP (default_value)) | |
6dd05c14 | 981 | XSETSTRING (default_string, XSYMBOL (default_value)->name); |
7c8d9931 RS |
982 | else |
983 | default_string = default_value; | |
984 | ||
985 | name = Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, | |
986 | Qnil, Qnil, default_string, Qnil); | |
987 | if (NILP (name)) | |
988 | return name; | |
989 | return Fintern (name, Qnil); | |
f927c5ae JB |
990 | } |
991 | ||
992 | #ifdef NOTDEF | |
993 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
af52c32d | 994 | doc: /* One arg PROMPT, a string. Read the name of a function and return as a symbol. |
fd771ceb | 995 | Prompt with PROMPT. */) |
af52c32d | 996 | (prompt) |
f927c5ae JB |
997 | Lisp_Object prompt; |
998 | { | |
cee54539 | 999 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
1000 | Qnil); |
1001 | } | |
1002 | #endif /* NOTDEF */ | |
1003 | ||
e5d4686b | 1004 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
af52c32d | 1005 | doc: /* Read the name of a user variable and return it as a symbol. |
fd771ceb | 1006 | Prompt with PROMPT. By default, return DEFAULT-VALUE. |
af52c32d MB |
1007 | A user variable is one whose documentation starts with a `*' character. */) |
1008 | (prompt, default_value) | |
e5d4686b | 1009 | Lisp_Object prompt, default_value; |
f927c5ae | 1010 | { |
7c8d9931 RS |
1011 | Lisp_Object name, default_string; |
1012 | ||
1013 | if (NILP (default_value)) | |
1014 | default_string = Qnil; | |
1015 | else if (SYMBOLP (default_value)) | |
6dd05c14 | 1016 | XSETSTRING (default_string, XSYMBOL (default_value)->name); |
7c8d9931 RS |
1017 | else |
1018 | default_string = default_value; | |
1019 | ||
1020 | name = Fcompleting_read (prompt, Vobarray, | |
1021 | Quser_variable_p, Qt, | |
1022 | Qnil, Qnil, default_string, Qnil); | |
1023 | if (NILP (name)) | |
1024 | return name; | |
1025 | return Fintern (name, Qnil); | |
f927c5ae JB |
1026 | } |
1027 | ||
1028 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
fd771ceb PJ |
1029 | doc: /* Read the name of a buffer and return as a string. |
1030 | Prompt with PROMPT. | |
a1f17501 | 1031 | Optional second arg DEF is value to return if user enters an empty line. |
fd771ceb PJ |
1032 | If optional third arg REQUIRE-MATCH is non-nil, |
1033 | only existing buffer names are allowed. */) | |
af52c32d | 1034 | (prompt, def, require_match) |
f927c5ae JB |
1035 | Lisp_Object prompt, def, require_match; |
1036 | { | |
eebbfb01 KH |
1037 | Lisp_Object args[4]; |
1038 | ||
7510b296 | 1039 | if (BUFFERP (def)) |
f927c5ae | 1040 | def = XBUFFER (def)->name; |
eebbfb01 KH |
1041 | |
1042 | if (NILP (Vread_buffer_function)) | |
1043 | { | |
1044 | if (!NILP (def)) | |
1045 | { | |
1046 | args[0] = build_string ("%s(default %s) "); | |
1047 | args[1] = prompt; | |
1048 | args[2] = def; | |
1049 | prompt = Fformat (3, args); | |
1050 | } | |
1051 | ||
1052 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
406e55df RS |
1053 | require_match, Qnil, Qbuffer_name_history, |
1054 | def, Qnil); | |
eebbfb01 KH |
1055 | } |
1056 | else | |
f927c5ae | 1057 | { |
eebbfb01 | 1058 | args[0] = Vread_buffer_function; |
f927c5ae JB |
1059 | args[1] = prompt; |
1060 | args[2] = def; | |
eebbfb01 KH |
1061 | args[3] = require_match; |
1062 | return Ffuncall(4, args); | |
f927c5ae | 1063 | } |
f927c5ae JB |
1064 | } |
1065 | \f | |
ec067ec7 RS |
1066 | static Lisp_Object |
1067 | minibuf_conform_representation (string, basis) | |
1068 | Lisp_Object string, basis; | |
1069 | { | |
1070 | if (STRING_MULTIBYTE (string) == STRING_MULTIBYTE (basis)) | |
1071 | return string; | |
1072 | ||
1073 | if (STRING_MULTIBYTE (string)) | |
1074 | return Fstring_make_unibyte (string); | |
1075 | else | |
1076 | return Fstring_make_multibyte (string); | |
1077 | } | |
1078 | ||
f927c5ae | 1079 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, |
af52c32d | 1080 | doc: /* Return common substring of all completions of STRING in ALIST. |
a1f17501 PJ |
1081 | Each car of each element of ALIST is tested to see if it begins with STRING. |
1082 | All that match are compared together; the longest initial sequence | |
1083 | common to all matches is returned as a string. | |
1084 | If there is no match at all, nil is returned. | |
1085 | For a unique match which is exact, t is returned. | |
1086 | ||
1087 | ALIST can be an obarray instead of an alist. | |
1088 | Then the print names of all symbols in the obarray are the possible matches. | |
1089 | ||
1090 | ALIST can also be a function to do the completion itself. | |
1091 | It receives three arguments: the values STRING, PREDICATE and nil. | |
1092 | Whatever it returns becomes the value of `try-completion'. | |
1093 | ||
1094 | If optional third argument PREDICATE is non-nil, | |
1095 | it is used to test each possible match. | |
1096 | The match is a candidate only if PREDICATE returns non-nil. | |
1097 | The argument given to PREDICATE is the alist element | |
1098 | or the symbol from the obarray. | |
1099 | Additionally to this predicate, `completion-regexp-list' | |
af52c32d MB |
1100 | is used to further constrain the set of candidates. */) |
1101 | (string, alist, predicate) | |
7efd36fc | 1102 | Lisp_Object string, alist, predicate; |
f927c5ae JB |
1103 | { |
1104 | Lisp_Object bestmatch, tail, elt, eltstring; | |
af2b7cd5 | 1105 | /* Size in bytes of BESTMATCH. */ |
6bbd7a29 | 1106 | int bestmatchsize = 0; |
af2b7cd5 | 1107 | /* These are in bytes, too. */ |
f927c5ae | 1108 | int compare, matchsize; |
56a98455 | 1109 | int list = CONSP (alist) || NILP (alist); |
6bbd7a29 | 1110 | int index = 0, obsize = 0; |
f927c5ae JB |
1111 | int matchcount = 0; |
1112 | Lisp_Object bucket, zero, end, tem; | |
1113 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1114 | ||
b7826503 | 1115 | CHECK_STRING (string); |
7510b296 | 1116 | if (!list && !VECTORP (alist)) |
7efd36fc | 1117 | return call3 (alist, string, predicate, Qnil); |
f927c5ae | 1118 | |
6bbd7a29 | 1119 | bestmatch = bucket = Qnil; |
f927c5ae JB |
1120 | |
1121 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1122 | tail = alist; | |
1123 | if (! list) | |
1124 | { | |
1125 | index = 0; | |
1126 | obsize = XVECTOR (alist)->size; | |
1127 | bucket = XVECTOR (alist)->contents[index]; | |
1128 | } | |
1129 | ||
1130 | while (1) | |
1131 | { | |
1132 | /* Get the next element of the alist or obarray. */ | |
1133 | /* Exit the loop if the elements are all used up. */ | |
1134 | /* elt gets the alist element or symbol. | |
1135 | eltstring gets the name to check as a completion. */ | |
1136 | ||
1137 | if (list) | |
1138 | { | |
56a98455 | 1139 | if (NILP (tail)) |
f927c5ae JB |
1140 | break; |
1141 | elt = Fcar (tail); | |
1142 | eltstring = Fcar (elt); | |
1143 | tail = Fcdr (tail); | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | if (XFASTINT (bucket) != 0) | |
1148 | { | |
1149 | elt = bucket; | |
1150 | eltstring = Fsymbol_name (elt); | |
1151 | if (XSYMBOL (bucket)->next) | |
1152 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1153 | else | |
5a866662 | 1154 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1155 | } |
1156 | else if (++index >= obsize) | |
1157 | break; | |
1158 | else | |
1159 | { | |
1160 | bucket = XVECTOR (alist)->contents[index]; | |
1161 | continue; | |
1162 | } | |
1163 | } | |
1164 | ||
1165 | /* Is this element a possible completion? */ | |
1166 | ||
7510b296 | 1167 | if (STRINGP (eltstring) |
7d315986 | 1168 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
69f4ef20 RS |
1169 | && (tem = Fcompare_strings (eltstring, make_number (0), |
1170 | make_number (XSTRING (string)->size), | |
1171 | string, make_number (0), Qnil, | |
1172 | completion_ignore_case ?Qt : Qnil), | |
1173 | EQ (Qt, tem))) | |
f927c5ae JB |
1174 | { |
1175 | /* Yes. */ | |
42006772 RS |
1176 | Lisp_Object regexps; |
1177 | Lisp_Object zero; | |
5a866662 | 1178 | XSETFASTINT (zero, 0); |
42006772 RS |
1179 | |
1180 | /* Ignore this element if it fails to match all the regexps. */ | |
1181 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1182 | regexps = XCDR (regexps)) |
42006772 | 1183 | { |
7539e11f | 1184 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1185 | if (NILP (tem)) |
1186 | break; | |
1187 | } | |
1188 | if (CONSP (regexps)) | |
1189 | continue; | |
1190 | ||
f927c5ae JB |
1191 | /* Ignore this element if there is a predicate |
1192 | and the predicate doesn't like it. */ | |
1193 | ||
7efd36fc | 1194 | if (!NILP (predicate)) |
f927c5ae | 1195 | { |
7efd36fc | 1196 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1197 | tem = Fcommandp (elt); |
1198 | else | |
1199 | { | |
1200 | GCPRO4 (tail, string, eltstring, bestmatch); | |
7efd36fc | 1201 | tem = call1 (predicate, elt); |
f927c5ae JB |
1202 | UNGCPRO; |
1203 | } | |
56a98455 | 1204 | if (NILP (tem)) continue; |
f927c5ae JB |
1205 | } |
1206 | ||
1207 | /* Update computation of how much all possible completions match */ | |
1208 | ||
1209 | matchcount++; | |
56a98455 | 1210 | if (NILP (bestmatch)) |
af2b7cd5 RS |
1211 | { |
1212 | bestmatch = eltstring; | |
69f4ef20 | 1213 | bestmatchsize = XSTRING (eltstring)->size; |
af2b7cd5 | 1214 | } |
f927c5ae JB |
1215 | else |
1216 | { | |
69f4ef20 RS |
1217 | compare = min (bestmatchsize, XSTRING (eltstring)->size); |
1218 | tem = Fcompare_strings (bestmatch, make_number (0), | |
1219 | make_number (compare), | |
1220 | eltstring, make_number (0), | |
1221 | make_number (compare), | |
1222 | completion_ignore_case ? Qt : Qnil); | |
1223 | if (EQ (tem, Qt)) | |
1224 | matchsize = compare; | |
1225 | else if (XINT (tem) < 0) | |
1226 | matchsize = - XINT (tem) - 1; | |
1227 | else | |
1228 | matchsize = XINT (tem) - 1; | |
1229 | ||
52b14ac0 JB |
1230 | if (matchsize < 0) |
1231 | matchsize = compare; | |
1232 | if (completion_ignore_case) | |
1233 | { | |
1234 | /* If this is an exact match except for case, | |
1235 | use it as the best match rather than one that is not an | |
1236 | exact match. This way, we get the case pattern | |
1237 | of the actual match. */ | |
69f4ef20 RS |
1238 | if ((matchsize == XSTRING (eltstring)->size |
1239 | && matchsize < XSTRING (bestmatch)->size) | |
52b14ac0 JB |
1240 | || |
1241 | /* If there is more than one exact match ignoring case, | |
1242 | and one of them is exact including case, | |
1243 | prefer that one. */ | |
1244 | /* If there is no exact match ignoring case, | |
1245 | prefer a match that does not change the case | |
1246 | of the input. */ | |
69f4ef20 | 1247 | ((matchsize == XSTRING (eltstring)->size) |
52b14ac0 | 1248 | == |
69f4ef20 RS |
1249 | (matchsize == XSTRING (bestmatch)->size) |
1250 | && (tem = Fcompare_strings (eltstring, make_number (0), | |
1251 | make_number (XSTRING (string)->size), | |
1252 | string, make_number (0), | |
1253 | Qnil, | |
1254 | Qnil), | |
1255 | EQ (Qt, tem)) | |
1256 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
1257 | make_number (XSTRING (string)->size), | |
1258 | string, make_number (0), | |
1259 | Qnil, | |
1260 | Qnil), | |
1261 | ! EQ (Qt, tem)))) | |
52b14ac0 JB |
1262 | bestmatch = eltstring; |
1263 | } | |
1264 | bestmatchsize = matchsize; | |
f927c5ae JB |
1265 | } |
1266 | } | |
1267 | } | |
1268 | ||
56a98455 | 1269 | if (NILP (bestmatch)) |
f927c5ae | 1270 | return Qnil; /* No completions found */ |
52b14ac0 JB |
1271 | /* If we are ignoring case, and there is no exact match, |
1272 | and no additional text was supplied, | |
1273 | don't change the case of what the user typed. */ | |
69f4ef20 RS |
1274 | if (completion_ignore_case && bestmatchsize == XSTRING (string)->size |
1275 | && XSTRING (bestmatch)->size > bestmatchsize) | |
ec067ec7 | 1276 | return minibuf_conform_representation (string, bestmatch); |
52b14ac0 JB |
1277 | |
1278 | /* Return t if the supplied string is an exact match (counting case); | |
1279 | it does not require any change to be made. */ | |
69f4ef20 RS |
1280 | if (matchcount == 1 && bestmatchsize == XSTRING (string)->size |
1281 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
1282 | make_number (bestmatchsize), | |
1283 | string, make_number (0), | |
1284 | make_number (bestmatchsize), | |
1285 | Qnil), | |
1286 | EQ (Qt, tem))) | |
f927c5ae JB |
1287 | return Qt; |
1288 | ||
5a866662 KH |
1289 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1290 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1291 | return Fsubstring (bestmatch, zero, end); |
1292 | } | |
f927c5ae | 1293 | \f |
89a255dc | 1294 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
af52c32d | 1295 | doc: /* Search for partial matches to STRING in ALIST. |
a1f17501 PJ |
1296 | Each car of each element of ALIST is tested to see if it begins with STRING. |
1297 | The value is a list of all the strings from ALIST that match. | |
1298 | ||
1299 | ALIST can be an obarray instead of an alist. | |
1300 | Then the print names of all symbols in the obarray are the possible matches. | |
1301 | ||
1302 | ALIST can also be a function to do the completion itself. | |
1303 | It receives three arguments: the values STRING, PREDICATE and t. | |
1304 | Whatever it returns becomes the value of `all-completions'. | |
1305 | ||
1306 | If optional third argument PREDICATE is non-nil, | |
1307 | it is used to test each possible match. | |
1308 | The match is a candidate only if PREDICATE returns non-nil. | |
1309 | The argument given to PREDICATE is the alist element | |
1310 | or the symbol from the obarray. | |
1311 | Additionally to this predicate, `completion-regexp-list' | |
1312 | is used to further constrain the set of candidates. | |
1313 | ||
1314 | If the optional fourth argument HIDE-SPACES is non-nil, | |
1315 | strings in ALIST that start with a space | |
af52c32d MB |
1316 | are ignored unless STRING itself starts with a space. */) |
1317 | (string, alist, predicate, hide_spaces) | |
7efd36fc | 1318 | Lisp_Object string, alist, predicate, hide_spaces; |
f927c5ae JB |
1319 | { |
1320 | Lisp_Object tail, elt, eltstring; | |
1321 | Lisp_Object allmatches; | |
56a98455 | 1322 | int list = CONSP (alist) || NILP (alist); |
6bbd7a29 | 1323 | int index = 0, obsize = 0; |
f927c5ae JB |
1324 | Lisp_Object bucket, tem; |
1325 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1326 | ||
b7826503 | 1327 | CHECK_STRING (string); |
7510b296 | 1328 | if (!list && !VECTORP (alist)) |
f927c5ae | 1329 | { |
7efd36fc | 1330 | return call3 (alist, string, predicate, Qt); |
f927c5ae | 1331 | } |
6bbd7a29 | 1332 | allmatches = bucket = Qnil; |
f927c5ae JB |
1333 | |
1334 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1335 | tail = alist; | |
1336 | if (! list) | |
1337 | { | |
1338 | index = 0; | |
1339 | obsize = XVECTOR (alist)->size; | |
1340 | bucket = XVECTOR (alist)->contents[index]; | |
1341 | } | |
1342 | ||
1343 | while (1) | |
1344 | { | |
1345 | /* Get the next element of the alist or obarray. */ | |
1346 | /* Exit the loop if the elements are all used up. */ | |
1347 | /* elt gets the alist element or symbol. | |
1348 | eltstring gets the name to check as a completion. */ | |
1349 | ||
1350 | if (list) | |
1351 | { | |
56a98455 | 1352 | if (NILP (tail)) |
f927c5ae JB |
1353 | break; |
1354 | elt = Fcar (tail); | |
1355 | eltstring = Fcar (elt); | |
1356 | tail = Fcdr (tail); | |
1357 | } | |
1358 | else | |
1359 | { | |
1360 | if (XFASTINT (bucket) != 0) | |
1361 | { | |
1362 | elt = bucket; | |
1363 | eltstring = Fsymbol_name (elt); | |
1364 | if (XSYMBOL (bucket)->next) | |
1365 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1366 | else | |
5a866662 | 1367 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1368 | } |
1369 | else if (++index >= obsize) | |
1370 | break; | |
1371 | else | |
1372 | { | |
1373 | bucket = XVECTOR (alist)->contents[index]; | |
1374 | continue; | |
1375 | } | |
1376 | } | |
1377 | ||
1378 | /* Is this element a possible completion? */ | |
1379 | ||
7510b296 | 1380 | if (STRINGP (eltstring) |
7d315986 | 1381 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
89a255dc | 1382 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 | 1383 | unless the input starts with space. */ |
fc932ac6 | 1384 | && ((STRING_BYTES (XSTRING (string)) > 0 |
af2b7cd5 | 1385 | && XSTRING (string)->data[0] == ' ') |
89a255dc RS |
1386 | || XSTRING (eltstring)->data[0] != ' ' |
1387 | || NILP (hide_spaces)) | |
69f4ef20 RS |
1388 | && (tem = Fcompare_strings (eltstring, make_number (0), |
1389 | make_number (XSTRING (string)->size), | |
1390 | string, make_number (0), | |
1391 | make_number (XSTRING (string)->size), | |
1392 | completion_ignore_case ? Qt : Qnil), | |
1393 | EQ (Qt, tem))) | |
f927c5ae JB |
1394 | { |
1395 | /* Yes. */ | |
42006772 RS |
1396 | Lisp_Object regexps; |
1397 | Lisp_Object zero; | |
5a866662 | 1398 | XSETFASTINT (zero, 0); |
42006772 RS |
1399 | |
1400 | /* Ignore this element if it fails to match all the regexps. */ | |
1401 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1402 | regexps = XCDR (regexps)) |
42006772 | 1403 | { |
7539e11f | 1404 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1405 | if (NILP (tem)) |
1406 | break; | |
1407 | } | |
1408 | if (CONSP (regexps)) | |
1409 | continue; | |
1410 | ||
f927c5ae JB |
1411 | /* Ignore this element if there is a predicate |
1412 | and the predicate doesn't like it. */ | |
1413 | ||
7efd36fc | 1414 | if (!NILP (predicate)) |
f927c5ae | 1415 | { |
7efd36fc | 1416 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1417 | tem = Fcommandp (elt); |
1418 | else | |
1419 | { | |
1420 | GCPRO4 (tail, eltstring, allmatches, string); | |
7efd36fc | 1421 | tem = call1 (predicate, elt); |
f927c5ae JB |
1422 | UNGCPRO; |
1423 | } | |
56a98455 | 1424 | if (NILP (tem)) continue; |
f927c5ae JB |
1425 | } |
1426 | /* Ok => put it on the list. */ | |
1427 | allmatches = Fcons (eltstring, allmatches); | |
1428 | } | |
1429 | } | |
1430 | ||
1431 | return Fnreverse (allmatches); | |
1432 | } | |
1433 | \f | |
1434 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1435 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1436 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
ccf330a6 | 1437 | Lisp_Object Vminibuffer_completing_file_name; |
f927c5ae | 1438 | |
cee54539 | 1439 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
af52c32d | 1440 | doc: /* Read a string in the minibuffer, with completion. |
a1f17501 PJ |
1441 | PROMPT is a string to prompt with; normally it ends in a colon and a space. |
1442 | TABLE is an alist whose elements' cars are strings, or an obarray. | |
1443 | TABLE can also be a function to do the completion itself. | |
1444 | PREDICATE limits completion to a subset of TABLE. | |
1445 | See `try-completion' and `all-completions' for more details | |
1446 | on completion, TABLE, and PREDICATE. | |
1447 | ||
1448 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless | |
1449 | the input is (or completes to) an element of TABLE or is null. | |
345c105f | 1450 | If it is also not t, typing RET does not exit if it does non-null completion. |
a1f17501 PJ |
1451 | If the input is null, `completing-read' returns an empty string, |
1452 | regardless of the value of REQUIRE-MATCH. | |
1453 | ||
1454 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially. | |
1455 | If it is (STRING . POSITION), the initial input | |
1456 | is STRING, but point is placed POSITION characters into the string. | |
345c105f RS |
1457 | This feature is deprecated--it is best to pass nil for INITIAL-INPUT |
1458 | and supply the default value DEF instead. The user can yank the | |
1459 | default value into the minibuffer easily using \\[next-history-element]. | |
1460 | ||
a1f17501 PJ |
1461 | HIST, if non-nil, specifies a history list |
1462 | and optionally the initial position in the list. | |
1463 | It can be a symbol, which is the history list variable to use, | |
1464 | or it can be a cons cell (HISTVAR . HISTPOS). | |
1465 | In that case, HISTVAR is the history list variable to use, | |
1466 | and HISTPOS is the initial position (the position in the list | |
1467 | which INITIAL-INPUT corresponds to). | |
1468 | Positions are counted starting from 1 at the beginning of the list. | |
1469 | DEF, if non-nil, is the default value. | |
1470 | ||
1471 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits | |
029a305c | 1472 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
1473 | |
1474 | Completion ignores case if the ambient value of | |
af52c32d MB |
1475 | `completion-ignore-case' is non-nil. */) |
1476 | (prompt, table, predicate, require_match, initial_input, hist, def, inherit_input_method) | |
d43f85c2 RS |
1477 | Lisp_Object prompt, table, predicate, require_match, initial_input; |
1478 | Lisp_Object hist, def, inherit_input_method; | |
f927c5ae | 1479 | { |
770970cb | 1480 | Lisp_Object val, histvar, histpos, position; |
d43f85c2 | 1481 | Lisp_Object init; |
770970cb | 1482 | int pos = 0; |
f927c5ae | 1483 | int count = specpdl_ptr - specpdl; |
0c8ee1a2 RS |
1484 | struct gcpro gcpro1; |
1485 | ||
d43f85c2 | 1486 | init = initial_input; |
0c8ee1a2 RS |
1487 | GCPRO1 (def); |
1488 | ||
f927c5ae | 1489 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1490 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae JB |
1491 | specbind (Qminibuffer_completion_confirm, |
1492 | EQ (require_match, Qt) ? Qnil : Qt); | |
1493 | last_exact_completion = Qnil; | |
770970cb RS |
1494 | |
1495 | position = Qnil; | |
1496 | if (!NILP (init)) | |
1497 | { | |
7510b296 | 1498 | if (CONSP (init)) |
770970cb RS |
1499 | { |
1500 | position = Fcdr (init); | |
1501 | init = Fcar (init); | |
1502 | } | |
b7826503 | 1503 | CHECK_STRING (init); |
770970cb RS |
1504 | if (!NILP (position)) |
1505 | { | |
b7826503 | 1506 | CHECK_NUMBER (position); |
770970cb | 1507 | /* Convert to distance from end of input. */ |
5dadd3a2 | 1508 | pos = XINT (position) - XSTRING (init)->size; |
770970cb RS |
1509 | } |
1510 | } | |
1511 | ||
7510b296 | 1512 | if (SYMBOLP (hist)) |
770970cb RS |
1513 | { |
1514 | histvar = hist; | |
1515 | histpos = Qnil; | |
1516 | } | |
1517 | else | |
1518 | { | |
1519 | histvar = Fcar_safe (hist); | |
1520 | histpos = Fcdr_safe (hist); | |
1521 | } | |
1522 | if (NILP (histvar)) | |
1523 | histvar = Qminibuffer_history; | |
1524 | if (NILP (histpos)) | |
5a866662 | 1525 | XSETFASTINT (histpos, 0); |
770970cb | 1526 | |
56a98455 | 1527 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1528 | ? Vminibuffer_local_completion_map |
1529 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1530 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1531 | histvar, histpos, def, 0, |
1532 | !NILP (inherit_input_method)); | |
b9a86585 RS |
1533 | |
1534 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (def)) | |
1535 | val = def; | |
1536 | ||
0c8ee1a2 | 1537 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1538 | } |
1539 | \f | |
f927c5ae | 1540 | Lisp_Object Fminibuffer_completion_help (); |
52b14ac0 | 1541 | Lisp_Object assoc_for_completion (); |
5d2ca7ae RS |
1542 | |
1543 | /* Test whether TXT is an exact completion. */ | |
1544 | Lisp_Object | |
1545 | test_completion (txt) | |
1546 | Lisp_Object txt; | |
1547 | { | |
1548 | Lisp_Object tem; | |
1549 | ||
1550 | if (CONSP (Vminibuffer_completion_table) | |
1551 | || NILP (Vminibuffer_completion_table)) | |
1552 | return assoc_for_completion (txt, Vminibuffer_completion_table); | |
1553 | else if (VECTORP (Vminibuffer_completion_table)) | |
1554 | { | |
1555 | /* Bypass intern-soft as that loses for nil */ | |
1556 | tem = oblookup (Vminibuffer_completion_table, | |
af2b7cd5 RS |
1557 | XSTRING (txt)->data, |
1558 | XSTRING (txt)->size, | |
fc932ac6 | 1559 | STRING_BYTES (XSTRING (txt))); |
44472c88 | 1560 | if (!SYMBOLP (tem)) |
9404446f RS |
1561 | { |
1562 | if (STRING_MULTIBYTE (txt)) | |
1563 | txt = Fstring_make_unibyte (txt); | |
1564 | else | |
1565 | txt = Fstring_make_multibyte (txt); | |
1566 | ||
1567 | tem = oblookup (Vminibuffer_completion_table, | |
1568 | XSTRING (txt)->data, | |
1569 | XSTRING (txt)->size, | |
1570 | STRING_BYTES (XSTRING (txt))); | |
1571 | if (!SYMBOLP (tem)) | |
1572 | return Qnil; | |
1573 | } | |
1574 | if (!NILP (Vminibuffer_completion_predicate)) | |
5d2ca7ae RS |
1575 | return call1 (Vminibuffer_completion_predicate, tem); |
1576 | else | |
1577 | return Qt; | |
1578 | } | |
1579 | else | |
1580 | return call3 (Vminibuffer_completion_table, txt, | |
1581 | Vminibuffer_completion_predicate, Qlambda); | |
1582 | } | |
f927c5ae JB |
1583 | |
1584 | /* returns: | |
1585 | * 0 no possible completion | |
1586 | * 1 was already an exact and unique completion | |
1587 | * 3 was already an exact completion | |
1588 | * 4 completed to an exact completion | |
1589 | * 5 some completion happened | |
1590 | * 6 no completion happened | |
1591 | */ | |
1592 | int | |
1593 | do_completion () | |
1594 | { | |
0c80756e | 1595 | Lisp_Object completion, string, tem; |
f927c5ae JB |
1596 | int completedp; |
1597 | Lisp_Object last; | |
1e00c2ff | 1598 | struct gcpro gcpro1, gcpro2; |
f927c5ae | 1599 | |
a346ec72 | 1600 | completion = Ftry_completion (Fminibuffer_contents (), |
8e9968c6 | 1601 | Vminibuffer_completion_table, |
f927c5ae JB |
1602 | Vminibuffer_completion_predicate); |
1603 | last = last_exact_completion; | |
1604 | last_exact_completion = Qnil; | |
1605 | ||
4f9b95e5 KH |
1606 | GCPRO2 (completion, last); |
1607 | ||
56a98455 | 1608 | if (NILP (completion)) |
f927c5ae JB |
1609 | { |
1610 | bitch_at_user (); | |
1611 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1612 | UNGCPRO; |
f927c5ae JB |
1613 | return 0; |
1614 | } | |
1615 | ||
1616 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1617 | { |
1618 | UNGCPRO; | |
1619 | return 1; | |
1620 | } | |
f927c5ae | 1621 | |
a346ec72 | 1622 | string = Fminibuffer_contents (); |
0c80756e MB |
1623 | |
1624 | /* COMPLETEDP should be true if some completion was done, which | |
1625 | doesn't include simply changing the case of the entered string. | |
1626 | However, for appearance, the string is rewritten if the case | |
1627 | changes. */ | |
1628 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qt); | |
01cce3e7 | 1629 | completedp = !EQ (tem, Qt); |
0c80756e | 1630 | |
7892a68b KH |
1631 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qnil); |
1632 | if (!EQ (tem, Qt)) | |
0c80756e | 1633 | /* Rewrite the user's input. */ |
f927c5ae | 1634 | { |
a346ec72 | 1635 | Fdelete_minibuffer_contents (); /* Some completion happened */ |
f927c5ae | 1636 | Finsert (1, &completion); |
6e69ab8c MB |
1637 | |
1638 | if (! completedp) | |
1639 | /* The case of the string changed, but that's all. We're not | |
1640 | sure whether this is a unique completion or not, so try again | |
1641 | using the real case (this shouldn't recurse again, because | |
1642 | the next time try-completion will return either `t' or the | |
1643 | exact string). */ | |
1644 | { | |
1645 | UNGCPRO; | |
1646 | return do_completion (); | |
1647 | } | |
f927c5ae JB |
1648 | } |
1649 | ||
1650 | /* It did find a match. Do we match some possibility exactly now? */ | |
a346ec72 | 1651 | tem = test_completion (Fminibuffer_contents ()); |
56a98455 | 1652 | if (NILP (tem)) |
1e00c2ff KH |
1653 | { |
1654 | /* not an exact match */ | |
1655 | UNGCPRO; | |
f927c5ae JB |
1656 | if (completedp) |
1657 | return 5; | |
739cc391 | 1658 | else if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1659 | Fminibuffer_completion_help (); |
1660 | else | |
1661 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1662 | return 6; | |
1663 | } | |
1664 | else if (completedp) | |
1e00c2ff KH |
1665 | { |
1666 | UNGCPRO; | |
1667 | return 4; | |
1668 | } | |
f927c5ae JB |
1669 | /* If the last exact completion and this one were the same, |
1670 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1671 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1672 | last_exact_completion = completion; |
56a98455 | 1673 | if (!NILP (last)) |
f927c5ae | 1674 | { |
a346ec72 | 1675 | tem = Fminibuffer_contents (); |
56a98455 | 1676 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1677 | Fminibuffer_completion_help (); |
1678 | } | |
1e00c2ff | 1679 | UNGCPRO; |
f927c5ae | 1680 | return 3; |
f927c5ae | 1681 | } |
1e00c2ff | 1682 | |
52b14ac0 JB |
1683 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1684 | ||
1685 | Lisp_Object | |
1686 | assoc_for_completion (key, list) | |
1687 | register Lisp_Object key; | |
1688 | Lisp_Object list; | |
1689 | { | |
1690 | register Lisp_Object tail; | |
1691 | ||
56a98455 | 1692 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1693 | { |
1694 | register Lisp_Object elt, tem, thiscar; | |
1695 | elt = Fcar (tail); | |
1696 | if (!CONSP (elt)) continue; | |
1697 | thiscar = Fcar (elt); | |
7510b296 | 1698 | if (!STRINGP (thiscar)) |
52b14ac0 | 1699 | continue; |
9404446f RS |
1700 | tem = Fcompare_strings (thiscar, make_number (0), Qnil, |
1701 | key, make_number (0), Qnil, | |
1702 | completion_ignore_case ? Qt : Qnil); | |
1703 | if (EQ (tem, Qt)) | |
1704 | return elt; | |
52b14ac0 JB |
1705 | QUIT; |
1706 | } | |
1707 | return Qnil; | |
1708 | } | |
f927c5ae JB |
1709 | |
1710 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
af52c32d | 1711 | doc: /* Complete the minibuffer contents as far as possible. |
a1f17501 PJ |
1712 | Return nil if there is no valid completion, else t. |
1713 | If no characters can be completed, display a list of possible completions. | |
1714 | If you repeat this command after it displayed such a list, | |
af52c32d MB |
1715 | scroll the window of possible completions. */) |
1716 | () | |
f927c5ae | 1717 | { |
2cb6da5c RS |
1718 | register int i; |
1719 | Lisp_Object window, tem; | |
1720 | ||
df902b62 RS |
1721 | /* If the previous command was not this, |
1722 | mark the completion buffer obsolete. */ | |
1723 | if (! EQ (current_kboard->Vlast_command, Vthis_command)) | |
2cb6da5c RS |
1724 | Vminibuf_scroll_window = Qnil; |
1725 | ||
1726 | window = Vminibuf_scroll_window; | |
1727 | /* If there's a fresh completion window with a live buffer, | |
1728 | and this command is repeated, scroll that window. */ | |
1729 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1730 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1731 | { | |
1732 | struct buffer *obuf = current_buffer; | |
1733 | ||
1734 | Fset_buffer (XWINDOW (window)->buffer); | |
7d7c3861 | 1735 | tem = Fpos_visible_in_window_p (make_number (ZV), window, Qnil); |
2cb6da5c RS |
1736 | if (! NILP (tem)) |
1737 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1738 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1739 | else |
1740 | /* Else scroll down one screen. */ | |
1741 | Fscroll_other_window (Qnil); | |
1742 | ||
1743 | set_buffer_internal (obuf); | |
1744 | return Qnil; | |
1745 | } | |
1746 | ||
1747 | i = do_completion (); | |
f927c5ae JB |
1748 | switch (i) |
1749 | { | |
1750 | case 0: | |
1751 | return Qnil; | |
1752 | ||
1753 | case 1: | |
a1c5aa96 GM |
1754 | if (PT != ZV) |
1755 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1756 | temp_echo_area_glyphs (" [Sole completion]"); |
1757 | break; | |
1758 | ||
1759 | case 3: | |
9994cc69 GM |
1760 | if (PT != ZV) |
1761 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1762 | temp_echo_area_glyphs (" [Complete, but not unique]"); |
1763 | break; | |
1764 | } | |
1765 | ||
1766 | return Qt; | |
1767 | } | |
e4c97a67 RS |
1768 | \f |
1769 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1770 | ||
1771 | /* This one is called by internal_condition_case to do the real work. */ | |
1772 | ||
1773 | Lisp_Object | |
1774 | complete_and_exit_1 () | |
1775 | { | |
1776 | return make_number (do_completion ()); | |
1777 | } | |
1778 | ||
1779 | /* This one is called by internal_condition_case if an error happens. | |
1780 | Pretend the current value is an exact match. */ | |
1781 | ||
1782 | Lisp_Object | |
1783 | complete_and_exit_2 (ignore) | |
1784 | Lisp_Object ignore; | |
1785 | { | |
1786 | return make_number (1); | |
1787 | } | |
f927c5ae JB |
1788 | |
1789 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
94c7167b | 1790 | Sminibuffer_complete_and_exit, 0, 0, "", |
af52c32d | 1791 | doc: /* If the minibuffer contents is a valid completion then exit. |
a1f17501 | 1792 | Otherwise try to complete it. If completion leads to a valid completion, |
af52c32d MB |
1793 | a repetition of this command will exit. */) |
1794 | () | |
f927c5ae JB |
1795 | { |
1796 | register int i; | |
e4c97a67 | 1797 | Lisp_Object val; |
f927c5ae JB |
1798 | |
1799 | /* Allow user to specify null string */ | |
a346ec72 | 1800 | if (XINT (Fminibuffer_prompt_end ()) == ZV) |
f927c5ae JB |
1801 | goto exit; |
1802 | ||
a346ec72 | 1803 | if (!NILP (test_completion (Fminibuffer_contents ()))) |
5d2ca7ae RS |
1804 | goto exit; |
1805 | ||
e4c97a67 RS |
1806 | /* Call do_completion, but ignore errors. */ |
1807 | val = internal_condition_case (complete_and_exit_1, Qerror, | |
1808 | complete_and_exit_2); | |
1809 | ||
1810 | i = XFASTINT (val); | |
f927c5ae JB |
1811 | switch (i) |
1812 | { | |
1813 | case 1: | |
1814 | case 3: | |
1815 | goto exit; | |
1816 | ||
1817 | case 4: | |
56a98455 | 1818 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1819 | { |
1820 | temp_echo_area_glyphs (" [Confirm]"); | |
1821 | return Qnil; | |
1822 | } | |
1823 | else | |
1824 | goto exit; | |
1825 | ||
1826 | default: | |
1827 | return Qnil; | |
1828 | } | |
1829 | exit: | |
6bbd7a29 | 1830 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
1831 | /* NOTREACHED */ |
1832 | } | |
1833 | ||
1834 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
94c7167b | 1835 | 0, 0, "", |
af52c32d | 1836 | doc: /* Complete the minibuffer contents at most a single word. |
a1f17501 PJ |
1837 | After one word is completed as much as possible, a space or hyphen |
1838 | is added, provided that matches some possible completion. | |
af52c32d MB |
1839 | Return nil if there is no valid completion, else t. */) |
1840 | () | |
f927c5ae | 1841 | { |
69f4ef20 | 1842 | Lisp_Object completion, tem, tem1; |
af2b7cd5 | 1843 | register int i, i_byte; |
f927c5ae | 1844 | register unsigned char *completion_string; |
d7be4211 | 1845 | struct gcpro gcpro1, gcpro2; |
8e9968c6 | 1846 | int prompt_end_charpos; |
b278606c BF |
1847 | |
1848 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1849 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae | 1850 | |
a346ec72 | 1851 | completion = Ftry_completion (Fminibuffer_contents (), |
f927c5ae JB |
1852 | Vminibuffer_completion_table, |
1853 | Vminibuffer_completion_predicate); | |
56a98455 | 1854 | if (NILP (completion)) |
f927c5ae JB |
1855 | { |
1856 | bitch_at_user (); | |
1857 | temp_echo_area_glyphs (" [No match]"); | |
1858 | return Qnil; | |
1859 | } | |
1860 | if (EQ (completion, Qt)) | |
1861 | return Qnil; | |
1862 | ||
b278606c | 1863 | #if 0 /* How the below code used to look, for reference. */ |
a346ec72 | 1864 | tem = Fminibuffer_contents (); |
f927c5ae JB |
1865 | b = XSTRING (tem)->data; |
1866 | i = ZV - 1 - XSTRING (completion)->size; | |
1867 | p = XSTRING (completion)->data; | |
1868 | if (i > 0 || | |
1869 | 0 <= scmp (b, p, ZV - 1)) | |
1870 | { | |
1871 | i = 1; | |
1872 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1873 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1874 | i++; | |
1875 | del_range (1, i + 1); | |
1876 | SET_PT (ZV); | |
1877 | } | |
1878 | #else /* Rewritten code */ | |
1879 | { | |
69f4ef20 | 1880 | int buffer_nchars, completion_nchars; |
f927c5ae | 1881 | |
b7826503 | 1882 | CHECK_STRING (completion); |
a346ec72 | 1883 | tem = Fminibuffer_contents (); |
d7be4211 | 1884 | GCPRO2 (completion, tem); |
719b4a40 RS |
1885 | /* If reading a file name, |
1886 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
ccf330a6 | 1887 | if (! NILP (Vminibuffer_completing_file_name)) |
719b4a40 RS |
1888 | { |
1889 | Lisp_Object substituted; | |
1890 | substituted = Fsubstitute_in_file_name (tem); | |
1891 | if (! EQ (substituted, tem)) | |
1892 | { | |
1893 | tem = substituted; | |
a346ec72 | 1894 | Fdelete_minibuffer_contents (); |
af2b7cd5 | 1895 | insert_from_string (tem, 0, 0, XSTRING (tem)->size, |
fc932ac6 | 1896 | STRING_BYTES (XSTRING (tem)), 0); |
719b4a40 RS |
1897 | } |
1898 | } | |
69f4ef20 RS |
1899 | buffer_nchars = XSTRING (tem)->size; /* ie ZV - BEGV */ |
1900 | completion_nchars = XSTRING (completion)->size; | |
1901 | i = buffer_nchars - completion_nchars; | |
1902 | if (i > 0 | |
1903 | || | |
1904 | (tem1 = Fcompare_strings (tem, make_number (0), | |
1905 | make_number (buffer_nchars), | |
1906 | completion, make_number (0), | |
1907 | make_number (buffer_nchars), | |
1908 | completion_ignore_case ? Qt : Qnil), | |
1909 | ! EQ (tem1, Qt))) | |
f927c5ae | 1910 | { |
69f4ef20 RS |
1911 | int start_pos; |
1912 | ||
1913 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1914 | if (i <= 0) i = 1; | |
1915 | start_pos= i; | |
1916 | buffer_nchars -= i; | |
669c6673 | 1917 | while (i > 0) |
69f4ef20 | 1918 | { |
669c6673 | 1919 | tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil, |
69f4ef20 RS |
1920 | completion, make_number (0), |
1921 | make_number (buffer_nchars), | |
1922 | completion_ignore_case ? Qt : Qnil); | |
1923 | start_pos++; | |
1924 | if (EQ (tem1, Qt)) | |
1925 | break; | |
1926 | i++; | |
669c6673 | 1927 | buffer_nchars--; |
69f4ef20 RS |
1928 | } |
1929 | del_range (1, i + 1); | |
a9c26562 | 1930 | SET_PT_BOTH (ZV, ZV_BYTE); |
f927c5ae | 1931 | } |
d7be4211 | 1932 | UNGCPRO; |
f927c5ae JB |
1933 | } |
1934 | #endif /* Rewritten code */ | |
279cf52c | 1935 | |
a346ec72 | 1936 | prompt_end_charpos = XINT (Fminibuffer_prompt_end ()); |
8e9968c6 | 1937 | |
279cf52c | 1938 | { |
8e9968c6 | 1939 | int prompt_end_bytepos; |
279cf52c GM |
1940 | prompt_end_bytepos = CHAR_TO_BYTE (prompt_end_charpos); |
1941 | i = ZV - prompt_end_charpos; | |
1942 | i_byte = ZV_BYTE - prompt_end_bytepos; | |
1943 | } | |
f927c5ae JB |
1944 | |
1945 | /* If completion finds next char not unique, | |
b278606c | 1946 | consider adding a space or a hyphen. */ |
f927c5ae JB |
1947 | if (i == XSTRING (completion)->size) |
1948 | { | |
b278606c | 1949 | GCPRO1 (completion); |
a346ec72 | 1950 | tem = Ftry_completion (concat2 (Fminibuffer_contents (), build_string (" ")), |
f927c5ae JB |
1951 | Vminibuffer_completion_table, |
1952 | Vminibuffer_completion_predicate); | |
b278606c BF |
1953 | UNGCPRO; |
1954 | ||
7510b296 | 1955 | if (STRINGP (tem)) |
f927c5ae JB |
1956 | completion = tem; |
1957 | else | |
1958 | { | |
b278606c BF |
1959 | GCPRO1 (completion); |
1960 | tem = | |
a346ec72 | 1961 | Ftry_completion (concat2 (Fminibuffer_contents (), build_string ("-")), |
b278606c BF |
1962 | Vminibuffer_completion_table, |
1963 | Vminibuffer_completion_predicate); | |
1964 | UNGCPRO; | |
1965 | ||
7510b296 | 1966 | if (STRINGP (tem)) |
f927c5ae JB |
1967 | completion = tem; |
1968 | } | |
1969 | } | |
1970 | ||
1971 | /* Now find first word-break in the stuff found by completion. | |
1972 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
1973 | { |
1974 | int len, c; | |
54643b2c | 1975 | int bytes = STRING_BYTES (XSTRING (completion)); |
d50a3d2a | 1976 | completion_string = XSTRING (completion)->data; |
fc932ac6 | 1977 | for (; i_byte < STRING_BYTES (XSTRING (completion)); i_byte += len, i++) |
d50a3d2a | 1978 | { |
af2b7cd5 | 1979 | c = STRING_CHAR_AND_LENGTH (completion_string + i_byte, |
54643b2c | 1980 | bytes - i_byte, |
d50a3d2a KH |
1981 | len); |
1982 | if (SYNTAX (c) != Sword) | |
1983 | { | |
af2b7cd5 RS |
1984 | i_byte += len; |
1985 | i++; | |
d50a3d2a KH |
1986 | break; |
1987 | } | |
1988 | } | |
1989 | } | |
f927c5ae JB |
1990 | |
1991 | /* If got no characters, print help for user. */ | |
1992 | ||
8e9968c6 | 1993 | if (i == ZV - prompt_end_charpos) |
f927c5ae | 1994 | { |
739cc391 | 1995 | if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1996 | Fminibuffer_completion_help (); |
1997 | return Qnil; | |
1998 | } | |
1999 | ||
2000 | /* Otherwise insert in minibuffer the chars we got */ | |
2001 | ||
a346ec72 | 2002 | Fdelete_minibuffer_contents (); |
af2b7cd5 | 2003 | insert_from_string (completion, 0, 0, i, i_byte, 1); |
f927c5ae JB |
2004 | return Qt; |
2005 | } | |
2006 | \f | |
2007 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
2008 | 1, 1, 0, | |
af52c32d | 2009 | doc: /* Display the list of completions, COMPLETIONS, using `standard-output'. |
a1f17501 PJ |
2010 | Each element may be just a symbol or string |
2011 | or may be a list of two strings to be printed as if concatenated. | |
2012 | `standard-output' must be a buffer. | |
2013 | The actual completion alternatives, as inserted, are given `mouse-face' | |
2014 | properties of `highlight'. | |
2015 | At the end, this runs the normal hook `completion-setup-hook'. | |
af52c32d MB |
2016 | It can find the completion buffer in `standard-output'. */) |
2017 | (completions) | |
f927c5ae JB |
2018 | Lisp_Object completions; |
2019 | { | |
dae36123 | 2020 | Lisp_Object tail, elt; |
f927c5ae | 2021 | register int i; |
2dc2b736 | 2022 | int column = 0; |
dae36123 | 2023 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 2024 | struct buffer *old = current_buffer; |
681f5af4 | 2025 | int first = 1; |
486cc7fb RS |
2026 | |
2027 | /* Note that (when it matters) every variable | |
dae36123 RS |
2028 | points to a non-string that is pointed to by COMPLETIONS, |
2029 | except for ELT. ELT can be pointing to a string | |
2030 | when terpri or Findent_to calls a change hook. */ | |
2031 | elt = Qnil; | |
2032 | GCPRO2 (completions, elt); | |
486cc7fb | 2033 | |
7510b296 | 2034 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 2035 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 2036 | |
56a98455 | 2037 | if (NILP (completions)) |
cfc736bf RS |
2038 | write_string ("There are no possible completions of what you have typed.", |
2039 | -1); | |
f927c5ae JB |
2040 | else |
2041 | { | |
2dc2b736 | 2042 | write_string ("Possible completions are:", -1); |
56a98455 | 2043 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 2044 | { |
ec067ec7 | 2045 | Lisp_Object tem, string; |
681f5af4 | 2046 | int length; |
47d7d104 | 2047 | Lisp_Object startpos, endpos; |
681f5af4 | 2048 | |
6bbd7a29 GM |
2049 | startpos = Qnil; |
2050 | ||
681f5af4 RS |
2051 | elt = Fcar (tail); |
2052 | /* Compute the length of this element. */ | |
2053 | if (CONSP (elt)) | |
2054 | { | |
49db96ce | 2055 | tem = XCAR (elt); |
b7826503 | 2056 | CHECK_STRING (tem); |
49db96ce | 2057 | length = XSTRING (tem)->size; |
681f5af4 | 2058 | |
49db96ce | 2059 | tem = Fcar (XCDR (elt)); |
b7826503 | 2060 | CHECK_STRING (tem); |
49db96ce | 2061 | length += XSTRING (tem)->size; |
681f5af4 RS |
2062 | } |
2063 | else | |
2064 | { | |
b7826503 | 2065 | CHECK_STRING (elt); |
49db96ce | 2066 | length = XSTRING (elt)->size; |
681f5af4 RS |
2067 | } |
2068 | ||
2069 | /* This does a bad job for narrower than usual windows. | |
2070 | Sadly, the window it will appear in is not known | |
2071 | until after the text has been made. */ | |
2072 | ||
47d7d104 RS |
2073 | if (BUFFERP (Vstandard_output)) |
2074 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2075 | ||
681f5af4 RS |
2076 | /* If the previous completion was very wide, |
2077 | or we have two on this line already, | |
2078 | don't put another on the same line. */ | |
2079 | if (column > 33 || first | |
2080 | /* If this is really wide, don't put it second on a line. */ | |
13c67cc6 | 2081 | || (column > 0 && length > 45)) |
681f5af4 RS |
2082 | { |
2083 | Fterpri (Qnil); | |
2084 | column = 0; | |
2085 | } | |
2086 | /* Otherwise advance to column 35. */ | |
2087 | else | |
2dc2b736 | 2088 | { |
7510b296 | 2089 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
2090 | { |
2091 | tem = Findent_to (make_number (35), make_number (2)); | |
47d7d104 | 2092 | |
681f5af4 RS |
2093 | column = XINT (tem); |
2094 | } | |
2dc2b736 RS |
2095 | else |
2096 | { | |
2097 | do | |
2098 | { | |
2099 | write_string (" ", -1); | |
2100 | column++; | |
2101 | } | |
2102 | while (column < 35); | |
2103 | } | |
2104 | } | |
681f5af4 | 2105 | |
47d7d104 RS |
2106 | if (BUFFERP (Vstandard_output)) |
2107 | { | |
2108 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2109 | Fset_text_properties (startpos, endpos, | |
2110 | Qnil, Vstandard_output); | |
2111 | } | |
2112 | ||
ec067ec7 | 2113 | /* Output this element. |
9404446f | 2114 | If necessary, convert it to unibyte or to multibyte first. */ |
f927c5ae | 2115 | if (CONSP (elt)) |
ec067ec7 | 2116 | string = Fcar (elt); |
f927c5ae | 2117 | else |
ec067ec7 RS |
2118 | string = elt; |
2119 | if (NILP (current_buffer->enable_multibyte_characters) | |
2120 | && STRING_MULTIBYTE (string)) | |
2121 | string = Fstring_make_unibyte (string); | |
9404446f RS |
2122 | else if (!NILP (current_buffer->enable_multibyte_characters) |
2123 | && !STRING_MULTIBYTE (string)) | |
2124 | string = Fstring_make_multibyte (string); | |
5744fa7c RS |
2125 | |
2126 | if (BUFFERP (Vstandard_output)) | |
2127 | { | |
4b37311e | 2128 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c RS |
2129 | |
2130 | Fprinc (string, Qnil); | |
2131 | ||
4b37311e | 2132 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c | 2133 | |
4b37311e | 2134 | Fput_text_property (startpos, endpos, |
5744fa7c RS |
2135 | Qmouse_face, intern ("highlight"), |
2136 | Vstandard_output); | |
2137 | } | |
2138 | else | |
2139 | { | |
2140 | Fprinc (string, Qnil); | |
2141 | } | |
ec067ec7 RS |
2142 | |
2143 | /* Output the annotation for this element. */ | |
2144 | if (CONSP (elt)) | |
4b37311e RS |
2145 | { |
2146 | if (BUFFERP (Vstandard_output)) | |
2147 | { | |
2148 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2149 | ||
2150 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2151 | ||
2152 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2153 | ||
2154 | Fset_text_properties (startpos, endpos, Qnil, | |
2155 | Vstandard_output); | |
2156 | } | |
2157 | else | |
2158 | { | |
2159 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2160 | } | |
2161 | } | |
2162 | ||
681f5af4 | 2163 | |
ec067ec7 | 2164 | /* Update COLUMN for what we have output. */ |
681f5af4 RS |
2165 | column += length; |
2166 | ||
2167 | /* If output is to a buffer, recompute COLUMN in a way | |
2168 | that takes account of character widths. */ | |
2169 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 2170 | { |
681f5af4 RS |
2171 | tem = Fcurrent_column (); |
2172 | column = XINT (tem); | |
2dc2b736 | 2173 | } |
681f5af4 RS |
2174 | |
2175 | first = 0; | |
f927c5ae JB |
2176 | } |
2177 | } | |
2dc2b736 | 2178 | |
486cc7fb RS |
2179 | UNGCPRO; |
2180 | ||
7510b296 | 2181 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
2182 | set_buffer_internal (old); |
2183 | ||
cfc736bf RS |
2184 | if (!NILP (Vrun_hooks)) |
2185 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
2186 | ||
f927c5ae JB |
2187 | return Qnil; |
2188 | } | |
2189 | ||
2190 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
94c7167b | 2191 | 0, 0, "", |
af52c32d MB |
2192 | doc: /* Display a list of possible completions of the current minibuffer contents. */) |
2193 | () | |
f927c5ae JB |
2194 | { |
2195 | Lisp_Object completions; | |
2196 | ||
2197 | message ("Making completion list..."); | |
a346ec72 | 2198 | completions = Fall_completions (Fminibuffer_contents (), |
f927c5ae | 2199 | Vminibuffer_completion_table, |
89a255dc RS |
2200 | Vminibuffer_completion_predicate, |
2201 | Qt); | |
39e98b38 | 2202 | clear_message (1, 0); |
f927c5ae | 2203 | |
56a98455 | 2204 | if (NILP (completions)) |
f927c5ae JB |
2205 | { |
2206 | bitch_at_user (); | |
2207 | temp_echo_area_glyphs (" [No completions]"); | |
2208 | } | |
2209 | else | |
2210 | internal_with_output_to_temp_buffer ("*Completions*", | |
2211 | Fdisplay_completion_list, | |
2212 | Fsort (completions, Qstring_lessp)); | |
2213 | return Qnil; | |
2214 | } | |
2215 | \f | |
2216 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
af52c32d MB |
2217 | doc: /* Terminate minibuffer input. */) |
2218 | () | |
f927c5ae | 2219 | { |
7510b296 | 2220 | if (INTEGERP (last_command_char)) |
dab3ab3c | 2221 | internal_self_insert (XINT (last_command_char), 0); |
f927c5ae JB |
2222 | else |
2223 | bitch_at_user (); | |
2224 | ||
6bbd7a29 | 2225 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2226 | } |
2227 | ||
2228 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
af52c32d MB |
2229 | doc: /* Terminate this minibuffer argument. */) |
2230 | () | |
f927c5ae | 2231 | { |
6bbd7a29 | 2232 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2233 | } |
2234 | ||
2235 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
af52c32d MB |
2236 | doc: /* Return current depth of activations of minibuffer, a nonnegative integer. */) |
2237 | () | |
f927c5ae JB |
2238 | { |
2239 | return make_number (minibuf_level); | |
2240 | } | |
2241 | ||
37e9a934 | 2242 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
af52c32d MB |
2243 | doc: /* Return the prompt string of the currently-active minibuffer. |
2244 | If no minibuffer is active, return nil. */) | |
2245 | () | |
37e9a934 | 2246 | { |
4d04c1f1 | 2247 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
2248 | } |
2249 | ||
f927c5ae | 2250 | \f |
2d955a50 RS |
2251 | /* Temporarily display the string M at the end of the current |
2252 | minibuffer contents. This is used to display things like | |
2253 | "[No Match]" when the user requests a completion for a prefix | |
2254 | that has no possible completions, and other quick, unobtrusive | |
2255 | messages. */ | |
2256 | ||
9d815fd9 | 2257 | void |
2d955a50 RS |
2258 | temp_echo_area_glyphs (m) |
2259 | char *m; | |
2260 | { | |
2261 | int osize = ZV; | |
a9c26562 | 2262 | int osize_byte = ZV_BYTE; |
2d955a50 | 2263 | int opoint = PT; |
a9c26562 | 2264 | int opoint_byte = PT_BYTE; |
2d955a50 RS |
2265 | Lisp_Object oinhibit; |
2266 | oinhibit = Vinhibit_quit; | |
2267 | ||
2268 | /* Clear out any old echo-area message to make way for our new thing. */ | |
2269 | message (0); | |
2270 | ||
a9c26562 | 2271 | SET_PT_BOTH (osize, osize_byte); |
2d955a50 | 2272 | insert_string (m); |
a9c26562 | 2273 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2274 | Vinhibit_quit = Qt; |
2275 | Fsit_for (make_number (2), Qnil, Qnil); | |
bc69581b | 2276 | del_range_both (osize, osize_byte, ZV, ZV_BYTE, 1); |
a9c26562 | 2277 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2278 | if (!NILP (Vquit_flag)) |
2279 | { | |
2280 | Vquit_flag = Qnil; | |
2281 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
2282 | } | |
2283 | Vinhibit_quit = oinhibit; | |
2284 | } | |
2285 | ||
2286 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
94c7167b | 2287 | 1, 1, 0, |
af52c32d | 2288 | doc: /* Temporarily display STRING at the end of the minibuffer. |
a1f17501 | 2289 | The text is displayed for two seconds, |
af52c32d MB |
2290 | or until the next input event arrives, whichever comes first. */) |
2291 | (string) | |
2d955a50 RS |
2292 | Lisp_Object string; |
2293 | { | |
2294 | temp_echo_area_glyphs (XSTRING (string)->data); | |
2295 | return Qnil; | |
2296 | } | |
2297 | \f | |
9d815fd9 | 2298 | void |
f927c5ae JB |
2299 | init_minibuf_once () |
2300 | { | |
2301 | Vminibuffer_list = Qnil; | |
2302 | staticpro (&Vminibuffer_list); | |
2303 | } | |
2304 | ||
9d815fd9 | 2305 | void |
f927c5ae JB |
2306 | syms_of_minibuf () |
2307 | { | |
2308 | minibuf_level = 0; | |
4d04c1f1 KH |
2309 | minibuf_prompt = Qnil; |
2310 | staticpro (&minibuf_prompt); | |
2311 | ||
2312 | minibuf_save_list = Qnil; | |
2313 | staticpro (&minibuf_save_list); | |
f927c5ae | 2314 | |
719b4a40 RS |
2315 | Qread_file_name_internal = intern ("read-file-name-internal"); |
2316 | staticpro (&Qread_file_name_internal); | |
2317 | ||
e5d4686b RS |
2318 | Qminibuffer_default = intern ("minibuffer-default"); |
2319 | staticpro (&Qminibuffer_default); | |
2320 | Fset (Qminibuffer_default, Qnil); | |
2321 | ||
f927c5ae JB |
2322 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
2323 | staticpro (&Qminibuffer_completion_table); | |
2324 | ||
2325 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
2326 | staticpro (&Qminibuffer_completion_confirm); | |
2327 | ||
2328 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
2329 | staticpro (&Qminibuffer_completion_predicate); | |
2330 | ||
1e00c2ff KH |
2331 | staticpro (&last_exact_completion); |
2332 | last_exact_completion = Qnil; | |
2333 | ||
f927c5ae JB |
2334 | staticpro (&last_minibuf_string); |
2335 | last_minibuf_string = Qnil; | |
2336 | ||
2337 | Quser_variable_p = intern ("user-variable-p"); | |
2338 | staticpro (&Quser_variable_p); | |
2339 | ||
770970cb RS |
2340 | Qminibuffer_history = intern ("minibuffer-history"); |
2341 | staticpro (&Qminibuffer_history); | |
f927c5ae | 2342 | |
406e55df RS |
2343 | Qbuffer_name_history = intern ("buffer-name-history"); |
2344 | staticpro (&Qbuffer_name_history); | |
33d0a17f | 2345 | Fset (Qbuffer_name_history, Qnil); |
406e55df | 2346 | |
5c781212 RS |
2347 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
2348 | staticpro (&Qminibuffer_setup_hook); | |
2349 | ||
177aecf9 KH |
2350 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
2351 | staticpro (&Qminibuffer_exit_hook); | |
2352 | ||
77aa8edf RS |
2353 | Qhistory_length = intern ("history-length"); |
2354 | staticpro (&Qhistory_length); | |
2355 | ||
cee54539 KH |
2356 | Qcurrent_input_method = intern ("current-input-method"); |
2357 | staticpro (&Qcurrent_input_method); | |
2358 | ||
2359 | Qactivate_input_method = intern ("activate-input-method"); | |
2360 | staticpro (&Qactivate_input_method); | |
2361 | ||
af52c32d MB |
2362 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2363 | doc: /* If this is non-nil, `read-buffer' does its work by calling this function. */); | |
eebbfb01 KH |
2364 | Vread_buffer_function = Qnil; |
2365 | ||
af52c32d MB |
2366 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2367 | doc: /* Normal hook run just after entry to minibuffer. */); | |
5c781212 RS |
2368 | Vminibuffer_setup_hook = Qnil; |
2369 | ||
af52c32d MB |
2370 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2371 | doc: /* Normal hook run just after exit from minibuffer. */); | |
177aecf9 KH |
2372 | Vminibuffer_exit_hook = Qnil; |
2373 | ||
af52c32d MB |
2374 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2375 | doc: /* *Maximum length for history lists before truncation takes place. | |
a1f17501 PJ |
2376 | A number means that length; t means infinite. Truncation takes place |
2377 | just after a new element is inserted. Setting the history-length | |
2378 | property of a history variable overrides this default. */); | |
77aa8edf RS |
2379 | XSETFASTINT (Vhistory_length, 30); |
2380 | ||
af52c32d MB |
2381 | DEFVAR_LISP ("completion-auto-help", &Vcompletion_auto_help, |
2382 | doc: /* *Non-nil means automatically provide help for invalid completion input. */); | |
739cc391 | 2383 | Vcompletion_auto_help = Qt; |
f927c5ae | 2384 | |
af52c32d MB |
2385 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, |
2386 | doc: /* Non-nil means don't consider case significant in completion. */); | |
f927c5ae JB |
2387 | completion_ignore_case = 0; |
2388 | ||
af52c32d MB |
2389 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, |
2390 | doc: /* *Non-nil means to allow minibuffer commands while in the minibuffer. | |
a1f17501 | 2391 | This variable makes a difference whenever the minibuffer window is active. */); |
f927c5ae JB |
2392 | enable_recursive_minibuffers = 0; |
2393 | ||
af52c32d MB |
2394 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, |
2395 | doc: /* Alist or obarray used for completion in the minibuffer. | |
a1f17501 PJ |
2396 | This becomes the ALIST argument to `try-completion' and `all-completion'. |
2397 | ||
2398 | The value may alternatively be a function, which is given three arguments: | |
2399 | STRING, the current buffer contents; | |
2400 | PREDICATE, the predicate for filtering possible matches; | |
2401 | CODE, which says what kind of things to do. | |
2402 | CODE can be nil, t or `lambda'. | |
2403 | nil means to return the best completion of STRING, or nil if there is none. | |
2404 | t means to return a list of all possible completions of STRING. | |
2405 | `lambda' means to return t if STRING is a valid completion as it stands. */); | |
f927c5ae JB |
2406 | Vminibuffer_completion_table = Qnil; |
2407 | ||
af52c32d MB |
2408 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, |
2409 | doc: /* Within call to `completing-read', this holds the PREDICATE argument. */); | |
f927c5ae JB |
2410 | Vminibuffer_completion_predicate = Qnil; |
2411 | ||
af52c32d | 2412 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, |
fd771ceb | 2413 | doc: /* Non-nil means to demand confirmation of completion before exiting minibuffer. */); |
f927c5ae JB |
2414 | Vminibuffer_completion_confirm = Qnil; |
2415 | ||
ccf330a6 | 2416 | DEFVAR_LISP ("minibuffer-completing-file-name", |
af52c32d MB |
2417 | &Vminibuffer_completing_file_name, |
2418 | doc: /* Non-nil means completing file names. */); | |
ccf330a6 RS |
2419 | Vminibuffer_completing_file_name = Qnil; |
2420 | ||
af52c32d MB |
2421 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, |
2422 | doc: /* Value that `help-form' takes on inside the minibuffer. */); | |
f927c5ae JB |
2423 | Vminibuffer_help_form = Qnil; |
2424 | ||
af52c32d MB |
2425 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2426 | doc: /* History list symbol to add minibuffer values to. | |
a1f17501 PJ |
2427 | Each string of minibuffer input, as it appears on exit from the minibuffer, |
2428 | is added with | |
2429 | (set minibuffer-history-variable | |
2430 | (cons STRING (symbol-value minibuffer-history-variable))) */); | |
5a866662 | 2431 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb | 2432 | |
af52c32d MB |
2433 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, |
2434 | doc: /* Current position of redoing in the history list. */); | |
770970cb RS |
2435 | Vminibuffer_history_position = Qnil; |
2436 | ||
af52c32d MB |
2437 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
2438 | doc: /* *Non-nil means entering the minibuffer raises the minibuffer's frame. | |
a1f17501 | 2439 | Some uses of the echo area also raise that frame (since they use it too). */); |
6a9ee000 RS |
2440 | minibuffer_auto_raise = 0; |
2441 | ||
af52c32d MB |
2442 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2443 | doc: /* List of regexps that should restrict possible completions. */); | |
42006772 RS |
2444 | Vcompletion_regexp_list = Qnil; |
2445 | ||
c3421833 | 2446 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
af52c32d MB |
2447 | &minibuffer_allow_text_properties, |
2448 | doc: /* Non-nil means `read-from-minibuffer' should not discard text properties. | |
a1f17501 PJ |
2449 | This also affects `read-string', but it does not affect `read-minibuffer', |
2450 | `read-no-blanks-input', or any of the functions that do minibuffer input | |
2451 | with completion; they always discard text properties. */); | |
c3421833 RS |
2452 | minibuffer_allow_text_properties = 0; |
2453 | ||
af52c32d MB |
2454 | DEFVAR_LISP ("minibuffer-prompt-properties", &Vminibuffer_prompt_properties, |
2455 | doc: /* Text properties that are added to minibuffer prompts. | |
a1f17501 PJ |
2456 | These are in addition to the basic `field' property, and stickiness |
2457 | properties. */); | |
cc64f5c9 MB |
2458 | /* We use `intern' here instead of Qread_only to avoid |
2459 | initialization-order problems. */ | |
2460 | Vminibuffer_prompt_properties | |
2461 | = Fcons (intern ("read-only"), Fcons (Qt, Qnil)); | |
2462 | ||
68313ed8 | 2463 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2464 | defsubr (&Sread_from_minibuffer); |
2465 | defsubr (&Seval_minibuffer); | |
2466 | defsubr (&Sread_minibuffer); | |
2467 | defsubr (&Sread_string); | |
2468 | defsubr (&Sread_command); | |
2469 | defsubr (&Sread_variable); | |
2470 | defsubr (&Sread_buffer); | |
2471 | defsubr (&Sread_no_blanks_input); | |
2472 | defsubr (&Sminibuffer_depth); | |
37e9a934 | 2473 | defsubr (&Sminibuffer_prompt); |
f927c5ae | 2474 | |
a346ec72 MB |
2475 | defsubr (&Sminibuffer_prompt_end); |
2476 | defsubr (&Sminibuffer_contents); | |
2477 | defsubr (&Sminibuffer_contents_no_properties); | |
2478 | defsubr (&Sdelete_minibuffer_contents); | |
2479 | ||
f927c5ae JB |
2480 | defsubr (&Stry_completion); |
2481 | defsubr (&Sall_completions); | |
2482 | defsubr (&Scompleting_read); | |
2483 | defsubr (&Sminibuffer_complete); | |
2484 | defsubr (&Sminibuffer_complete_word); | |
2485 | defsubr (&Sminibuffer_complete_and_exit); | |
2486 | defsubr (&Sdisplay_completion_list); | |
2487 | defsubr (&Sminibuffer_completion_help); | |
2488 | ||
2489 | defsubr (&Sself_insert_and_exit); | |
2490 | defsubr (&Sexit_minibuffer); | |
2491 | ||
2d955a50 | 2492 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2493 | } |
2494 | ||
9d815fd9 | 2495 | void |
f927c5ae JB |
2496 | keys_of_minibuf () |
2497 | { | |
2498 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2499 | "abort-recursive-edit"); | |
2500 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2501 | "exit-minibuffer"); | |
2502 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2503 | "exit-minibuffer"); | |
2504 | ||
f927c5ae JB |
2505 | initial_define_key (Vminibuffer_local_ns_map, ' ', |
2506 | "exit-minibuffer"); | |
2507 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2508 | "exit-minibuffer"); | |
2509 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2510 | "self-insert-and-exit"); | |
2511 | ||
f927c5ae JB |
2512 | initial_define_key (Vminibuffer_local_completion_map, '\t', |
2513 | "minibuffer-complete"); | |
2514 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2515 | "minibuffer-complete-word"); | |
2516 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2517 | "minibuffer-completion-help"); | |
2518 | ||
f927c5ae JB |
2519 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), |
2520 | "minibuffer-complete-and-exit"); | |
2521 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2522 | "minibuffer-complete-and-exit"); | |
f927c5ae | 2523 | } |