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 | ||
9ab4a725 | 68 | /* Nonzero means let functions called when within a minibuffer |
f927c5ae | 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 | 105 | /* Function to call to read a buffer name. */ |
9ab4a725 | 106 | Lisp_Object Vread_buffer_function; |
eebbfb01 | 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 | ||
30e13e56 | 126 | extern Lisp_Object Voverriding_local_map; |
cee54539 | 127 | |
5744fa7c RS |
128 | Lisp_Object Quser_variable_p; |
129 | ||
130 | Lisp_Object Qminibuffer_default; | |
131 | ||
cee54539 KH |
132 | Lisp_Object Qcurrent_input_method, Qactivate_input_method; |
133 | ||
5744fa7c | 134 | extern Lisp_Object Qmouse_face; |
279cf52c | 135 | |
8e9968c6 | 136 | extern Lisp_Object Qfield; |
f927c5ae | 137 | \f |
89fdc4a0 KH |
138 | /* Put minibuf on currently selected frame's minibuffer. |
139 | We do this whenever the user starts a new minibuffer | |
140 | or when a minibuffer exits. */ | |
141 | ||
142 | void | |
143 | choose_minibuf_frame () | |
144 | { | |
a4aafc54 GM |
145 | if (FRAMEP (selected_frame) |
146 | && FRAME_LIVE_P (XFRAME (selected_frame)) | |
147 | && !EQ (minibuf_window, XFRAME (selected_frame)->minibuffer_window)) | |
89fdc4a0 | 148 | { |
a4aafc54 GM |
149 | struct frame *sf = XFRAME (selected_frame); |
150 | Lisp_Object buffer; | |
9ab4a725 | 151 | |
89fdc4a0 KH |
152 | /* I don't think that any frames may validly have a null minibuffer |
153 | window anymore. */ | |
a4aafc54 | 154 | if (NILP (sf->minibuffer_window)) |
89fdc4a0 KH |
155 | abort (); |
156 | ||
a4aafc54 GM |
157 | /* Under X, we come here with minibuf_window being the |
158 | minibuffer window of the unused termcap window created in | |
159 | init_window_once. That window doesn't have a buffer. */ | |
160 | buffer = XWINDOW (minibuf_window)->buffer; | |
161 | if (BUFFERP (buffer)) | |
162 | Fset_window_buffer (sf->minibuffer_window, buffer); | |
163 | minibuf_window = sf->minibuffer_window; | |
89fdc4a0 | 164 | } |
914860c2 RS |
165 | |
166 | /* Make sure no other frame has a minibuffer as its selected window, | |
167 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
168 | confusing. Only allow the selected frame to do this, |
169 | and that only if the minibuffer is active. */ | |
914860c2 RS |
170 | { |
171 | Lisp_Object tail, frame; | |
172 | ||
173 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 | 174 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
a4aafc54 | 175 | && !(EQ (frame, selected_frame) |
07d402c8 | 176 | && minibuf_level > 0)) |
914860c2 RS |
177 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
178 | } | |
89fdc4a0 | 179 | } |
68313ed8 | 180 | |
0c94f256 RS |
181 | Lisp_Object |
182 | choose_minibuf_frame_1 (ignore) | |
183 | Lisp_Object ignore; | |
184 | { | |
185 | choose_minibuf_frame (); | |
186 | return Qnil; | |
187 | } | |
188 | ||
68313ed8 RS |
189 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
190 | Sset_minibuffer_window, 1, 1, 0, | |
af52c32d | 191 | doc: /* Specify which minibuffer window to use for the minibuffer. |
a1f17501 | 192 | This effects where the minibuffer is displayed if you put text in it |
af52c32d MB |
193 | without invoking the usual minibuffer commands. */) |
194 | (window) | |
68313ed8 RS |
195 | Lisp_Object window; |
196 | { | |
b7826503 | 197 | CHECK_WINDOW (window); |
68313ed8 RS |
198 | if (! MINI_WINDOW_P (XWINDOW (window))) |
199 | error ("Window is not a minibuffer window"); | |
200 | ||
201 | minibuf_window = window; | |
202 | ||
203 | return window; | |
204 | } | |
205 | ||
89fdc4a0 | 206 | \f |
f927c5ae JB |
207 | /* Actual minibuffer invocation. */ |
208 | ||
af2b7cd5 RS |
209 | static Lisp_Object read_minibuf_unwind P_ ((Lisp_Object)); |
210 | static Lisp_Object read_minibuf P_ ((Lisp_Object, Lisp_Object, | |
211 | Lisp_Object, Lisp_Object, | |
212 | int, Lisp_Object, | |
213 | Lisp_Object, Lisp_Object, | |
214 | int, int)); | |
edfef199 GM |
215 | static Lisp_Object read_minibuf_noninteractive P_ ((Lisp_Object, Lisp_Object, |
216 | Lisp_Object, Lisp_Object, | |
217 | int, Lisp_Object, | |
218 | Lisp_Object, Lisp_Object, | |
219 | int, int)); | |
220 | static Lisp_Object string_to_object P_ ((Lisp_Object, Lisp_Object)); | |
221 | ||
222 | ||
223 | /* Read a Lisp object from VAL and return it. If VAL is an empty | |
224 | string, and DEFALT is a string, read from DEFALT instead of VAL. */ | |
225 | ||
226 | static Lisp_Object | |
227 | string_to_object (val, defalt) | |
228 | Lisp_Object val, defalt; | |
229 | { | |
230 | struct gcpro gcpro1, gcpro2; | |
231 | Lisp_Object expr_and_pos; | |
232 | int pos; | |
9ab4a725 | 233 | |
edfef199 | 234 | GCPRO2 (val, defalt); |
9ab4a725 | 235 | |
d5db4077 | 236 | if (STRINGP (val) && SCHARS (val) == 0 |
edfef199 GM |
237 | && STRINGP (defalt)) |
238 | val = defalt; | |
9ab4a725 | 239 | |
edfef199 GM |
240 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); |
241 | pos = XINT (Fcdr (expr_and_pos)); | |
d5db4077 | 242 | if (pos != SCHARS (val)) |
edfef199 GM |
243 | { |
244 | /* Ignore trailing whitespace; any other trailing junk | |
245 | is an error. */ | |
246 | int i; | |
247 | pos = string_char_to_byte (val, pos); | |
d5db4077 | 248 | for (i = pos; i < SBYTES (val); i++) |
edfef199 | 249 | { |
d5db4077 | 250 | int c = SREF (val, i); |
edfef199 GM |
251 | if (c != ' ' && c != '\t' && c != '\n') |
252 | error ("Trailing garbage following expression"); | |
253 | } | |
254 | } | |
9ab4a725 | 255 | |
edfef199 GM |
256 | val = Fcar (expr_and_pos); |
257 | RETURN_UNGCPRO (val); | |
258 | } | |
259 | ||
260 | ||
261 | /* Like read_minibuf but reading from stdin. This function is called | |
262 | from read_minibuf to do the job if noninteractive. */ | |
263 | ||
264 | static Lisp_Object | |
265 | read_minibuf_noninteractive (map, initial, prompt, backup_n, expflag, | |
266 | histvar, histpos, defalt, allow_props, | |
267 | inherit_input_method) | |
268 | Lisp_Object map; | |
269 | Lisp_Object initial; | |
270 | Lisp_Object prompt; | |
271 | Lisp_Object backup_n; | |
272 | int expflag; | |
273 | Lisp_Object histvar; | |
274 | Lisp_Object histpos; | |
275 | Lisp_Object defalt; | |
276 | int allow_props; | |
277 | int inherit_input_method; | |
278 | { | |
279 | int size, len; | |
280 | char *line, *s; | |
edfef199 GM |
281 | Lisp_Object val; |
282 | ||
d5db4077 | 283 | fprintf (stdout, "%s", SDATA (prompt)); |
edfef199 GM |
284 | fflush (stdout); |
285 | ||
6bbd7a29 | 286 | val = Qnil; |
edfef199 GM |
287 | size = 100; |
288 | len = 0; | |
289 | line = (char *) xmalloc (size * sizeof *line); | |
290 | while ((s = fgets (line + len, size - len, stdin)) != NULL | |
291 | && (len = strlen (line), | |
292 | len == size - 1 && line[len - 1] != '\n')) | |
293 | { | |
294 | size *= 2; | |
295 | line = (char *) xrealloc (line, size); | |
296 | } | |
297 | ||
298 | if (s) | |
299 | { | |
300 | len = strlen (line); | |
9ab4a725 | 301 | |
edfef199 GM |
302 | if (len > 0 && line[len - 1] == '\n') |
303 | line[--len] = '\0'; | |
9ab4a725 | 304 | |
edfef199 GM |
305 | val = build_string (line); |
306 | xfree (line); | |
307 | } | |
308 | else | |
309 | { | |
310 | xfree (line); | |
311 | error ("Error reading from stdin"); | |
312 | } | |
9ab4a725 | 313 | |
edfef199 GM |
314 | /* If Lisp form desired instead of string, parse it. */ |
315 | if (expflag) | |
316 | val = string_to_object (val, defalt); | |
9ab4a725 | 317 | |
edfef199 GM |
318 | return val; |
319 | } | |
1011edb5 | 320 | \f |
a346ec72 MB |
321 | DEFUN ("minibuffer-prompt-end", Fminibuffer_prompt_end, |
322 | Sminibuffer_prompt_end, 0, 0, 0, | |
af52c32d MB |
323 | doc: /* Return the buffer position of the end of the minibuffer prompt. |
324 | Return (point-min) if current buffer is not a mini-buffer. */) | |
325 | () | |
a346ec72 MB |
326 | { |
327 | /* This function is written to be most efficient when there's a prompt. */ | |
328 | Lisp_Object beg = make_number (BEGV); | |
f7793dfb | 329 | Lisp_Object end = Ffield_end (beg, Qnil, Qnil); |
9ab4a725 | 330 | |
a346ec72 | 331 | if (XINT (end) == ZV && NILP (Fget_char_property (beg, Qfield, Qnil))) |
b056f36d | 332 | return beg; |
a346ec72 MB |
333 | else |
334 | return end; | |
335 | } | |
336 | ||
337 | DEFUN ("minibuffer-contents", Fminibuffer_contents, | |
338 | Sminibuffer_contents, 0, 0, 0, | |
029a305c | 339 | doc: /* Return the user input in a minibuffer as a string. |
af52c32d MB |
340 | The current buffer must be a minibuffer. */) |
341 | () | |
a346ec72 MB |
342 | { |
343 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
344 | return make_buffer_string (prompt_end, ZV, 1); | |
345 | } | |
346 | ||
347 | DEFUN ("minibuffer-contents-no-properties", Fminibuffer_contents_no_properties, | |
348 | Sminibuffer_contents_no_properties, 0, 0, 0, | |
029a305c | 349 | doc: /* Return the user input in a minibuffer as a string, without text-properties. |
af52c32d MB |
350 | The current buffer must be a minibuffer. */) |
351 | () | |
a346ec72 MB |
352 | { |
353 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
354 | return make_buffer_string (prompt_end, ZV, 0); | |
355 | } | |
356 | ||
357 | DEFUN ("delete-minibuffer-contents", Fdelete_minibuffer_contents, | |
358 | Sdelete_minibuffer_contents, 0, 0, 0, | |
af52c32d MB |
359 | doc: /* Delete all user input in a minibuffer. |
360 | The current buffer must be a minibuffer. */) | |
361 | () | |
a346ec72 MB |
362 | { |
363 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
364 | if (prompt_end < ZV) | |
365 | del_range (prompt_end, ZV); | |
366 | return Qnil; | |
367 | } | |
368 | ||
1011edb5 RS |
369 | /* Get the text in the minibuffer before point. |
370 | That is what completion commands operate on. */ | |
a346ec72 | 371 | |
5b62b301 | 372 | Lisp_Object |
1011edb5 RS |
373 | minibuffer_completion_contents () |
374 | { | |
375 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
376 | return make_buffer_string (prompt_end, PT, 1); | |
377 | } | |
378 | \f | |
770970cb | 379 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
a9c26562 | 380 | (a string), putting point minus BACKUP_N bytes from the end of INITIAL, |
770970cb | 381 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 382 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
383 | |
384 | Normally return the result as a string (the text that was read), | |
3ab14176 | 385 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
386 | If HISTVAR is given, save the value read on that history only if it doesn't |
387 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 388 | the list as the string that was read. |
770970cb | 389 | |
c3421833 RS |
390 | DEFALT specifies te default value for the sake of history commands. |
391 | ||
cee54539 KH |
392 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
393 | ||
394 | if INHERIT_INPUT_METHOD is nonzeor, the minibuffer inherit the | |
395 | current input method. */ | |
e5d4686b RS |
396 | |
397 | static Lisp_Object | |
398 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 399 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
400 | Lisp_Object map; |
401 | Lisp_Object initial; | |
402 | Lisp_Object prompt; | |
5061d9c3 | 403 | Lisp_Object backup_n; |
f927c5ae | 404 | int expflag; |
770970cb RS |
405 | Lisp_Object histvar; |
406 | Lisp_Object histpos; | |
e5d4686b | 407 | Lisp_Object defalt; |
af2b7cd5 | 408 | int allow_props; |
cee54539 | 409 | int inherit_input_method; |
f927c5ae | 410 | { |
00a34088 | 411 | Lisp_Object val; |
aed13378 | 412 | int count = SPECPDL_INDEX (); |
cee54539 KH |
413 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
414 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 415 | Lisp_Object enable_multibyte; |
04012254 | 416 | extern Lisp_Object Qfront_sticky; |
fbd1209a | 417 | extern Lisp_Object Qrear_nonsticky; |
00a34088 | 418 | |
e5d4686b RS |
419 | specbind (Qminibuffer_default, defalt); |
420 | ||
08f7d623 | 421 | single_kboard_state (); |
e5baa1a7 | 422 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
423 | if (display_hourglass_p) |
424 | cancel_hourglass (); | |
e5baa1a7 | 425 | #endif |
718d3251 | 426 | |
00a34088 | 427 | val = Qnil; |
57ceaa8a | 428 | ambient_dir = current_buffer->directory; |
cee54539 | 429 | input_method = Qnil; |
c75000c7 | 430 | enable_multibyte = Qnil; |
57ceaa8a | 431 | |
00a34088 RS |
432 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
433 | store them away before we can GC. Don't need to protect | |
434 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 435 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 436 | |
7510b296 | 437 | if (!STRINGP (prompt)) |
695deb18 | 438 | prompt = empty_string; |
f927c5ae | 439 | |
f927c5ae | 440 | if (!enable_recursive_minibuffers |
be15a518 RS |
441 | && minibuf_level > 0) |
442 | { | |
443 | if (EQ (selected_window, minibuf_window)) | |
444 | error ("Command attempted to use minibuffer while in minibuffer"); | |
445 | else | |
446 | /* If we're in another window, cancel the minibuffer that's active. */ | |
447 | Fthrow (Qexit, | |
448 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
449 | } | |
f927c5ae | 450 | |
edfef199 | 451 | if (noninteractive) |
c28b847b GM |
452 | { |
453 | val = read_minibuf_noninteractive (map, initial, prompt, backup_n, | |
454 | expflag, histvar, histpos, defalt, | |
455 | allow_props, inherit_input_method); | |
456 | return unbind_to (count, val); | |
457 | } | |
edfef199 | 458 | |
748dc60a | 459 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 460 | |
c5b6b680 RS |
461 | choose_minibuf_frame (); |
462 | ||
0c94f256 RS |
463 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
464 | ||
f927c5ae | 465 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
466 | Fcurrent_window_configuration (Qnil)); |
467 | ||
ff11dfa1 JB |
468 | /* If the minibuffer window is on a different frame, save that |
469 | frame's configuration too. */ | |
75f00e72 | 470 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
a4aafc54 | 471 | if (!EQ (mini_frame, selected_frame)) |
5061d9c3 RS |
472 | record_unwind_protect (Fset_window_configuration, |
473 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
474 | |
475 | /* If the minibuffer is on an iconified or invisible frame, | |
476 | make it visible now. */ | |
477 | Fmake_frame_visible (mini_frame); | |
478 | ||
6a9ee000 RS |
479 | if (minibuffer_auto_raise) |
480 | Fraise_frame (mini_frame); | |
f927c5ae | 481 | |
748dc60a RS |
482 | /* We have to do this after saving the window configuration |
483 | since that is what restores the current buffer. */ | |
484 | ||
485 | /* Arrange to restore a number of minibuffer-related variables. | |
486 | We could bind each variable separately, but that would use lots of | |
487 | specpdl slots. */ | |
488 | minibuf_save_list | |
489 | = Fcons (Voverriding_local_map, | |
490 | Fcons (minibuf_window, minibuf_save_list)); | |
491 | minibuf_save_list | |
492 | = Fcons (minibuf_prompt, | |
493 | Fcons (make_number (minibuf_prompt_width), | |
494 | Fcons (Vhelp_form, | |
495 | Fcons (Vcurrent_prefix_arg, | |
496 | Fcons (Vminibuffer_history_position, | |
497 | Fcons (Vminibuffer_history_variable, | |
498 | minibuf_save_list)))))); | |
499 | ||
500 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
501 | minibuf_level++; | |
502 | ||
503 | /* Now that we can restore all those variables, start changing them. */ | |
504 | ||
1e3f16d5 | 505 | minibuf_prompt_width = 0; |
748dc60a RS |
506 | minibuf_prompt = Fcopy_sequence (prompt); |
507 | Vminibuffer_history_position = histpos; | |
508 | Vminibuffer_history_variable = histvar; | |
509 | Vhelp_form = Vminibuffer_help_form; | |
510 | ||
cee54539 | 511 | if (inherit_input_method) |
c75000c7 | 512 | { |
fd771ceb | 513 | /* `current-input-method' is buffer local. So, remember it in |
c75000c7 RS |
514 | INPUT_METHOD before changing the current buffer. */ |
515 | input_method = Fsymbol_value (Qcurrent_input_method); | |
516 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
517 | } | |
cee54539 | 518 | |
748dc60a RS |
519 | /* Switch to the minibuffer. */ |
520 | ||
4f69d8f6 RS |
521 | minibuffer = get_minibuffer (minibuf_level); |
522 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
523 | |
524 | /* The current buffer's default directory is usually the right thing | |
525 | for our minibuffer here. However, if you're typing a command at | |
526 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
527 | the current_buffer, so reset_buffer leaves buf's default | |
528 | directory unchanged. This is a bummer when you've just started | |
529 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
530 | you think of something better to do? Find another buffer with a | |
531 | better directory, and use that one instead. */ | |
748dc60a RS |
532 | if (STRINGP (ambient_dir)) |
533 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
534 | else |
535 | { | |
536 | Lisp_Object buf_list; | |
537 | ||
538 | for (buf_list = Vbuffer_alist; | |
539 | CONSP (buf_list); | |
7539e11f | 540 | buf_list = XCDR (buf_list)) |
64a3a3c0 | 541 | { |
1e62748e | 542 | Lisp_Object other_buf; |
64a3a3c0 | 543 | |
7539e11f | 544 | other_buf = XCDR (XCAR (buf_list)); |
7510b296 | 545 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
546 | { |
547 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
548 | break; | |
549 | } | |
550 | } | |
551 | } | |
552 | ||
a4aafc54 GM |
553 | if (!EQ (mini_frame, selected_frame)) |
554 | Fredirect_frame_focus (selected_frame, mini_frame); | |
43bad991 | 555 | |
f927c5ae | 556 | Vminibuf_scroll_window = selected_window; |
6122844a | 557 | if (minibuf_level == 1 || !EQ (minibuf_window, selected_window)) |
5705966b | 558 | minibuf_selected_window = selected_window; |
f927c5ae | 559 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); |
f927c5ae | 560 | Fselect_window (minibuf_window); |
5a866662 | 561 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 562 | |
748dc60a RS |
563 | Fmake_local_variable (Qprint_escape_newlines); |
564 | print_escape_newlines = 1; | |
565 | ||
566 | /* Erase the buffer. */ | |
59115a22 | 567 | { |
331379bf | 568 | int count1 = SPECPDL_INDEX (); |
59115a22 | 569 | specbind (Qinhibit_read_only, Qt); |
a41edd99 | 570 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
571 | Ferase_buffer (); |
572 | unbind_to (count1, Qnil); | |
573 | } | |
574 | ||
279cf52c GM |
575 | if (!NILP (current_buffer->enable_multibyte_characters) |
576 | && ! STRING_MULTIBYTE (minibuf_prompt)) | |
577 | minibuf_prompt = Fstring_make_multibyte (minibuf_prompt); | |
578 | ||
279cf52c GM |
579 | /* Insert the prompt, record where it ends. */ |
580 | Finsert (1, &minibuf_prompt); | |
279cf52c GM |
581 | if (PT > BEG) |
582 | { | |
fbd1209a | 583 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 584 | Qfront_sticky, Qt, Qnil); |
fbd1209a | 585 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 586 | Qrear_nonsticky, Qt, Qnil); |
8e9968c6 GM |
587 | Fput_text_property (make_number (BEG), make_number (PT), |
588 | Qfield, Qt, Qnil); | |
cc64f5c9 MB |
589 | Fadd_text_properties (make_number (BEG), make_number (PT), |
590 | Vminibuffer_prompt_properties, Qnil); | |
279cf52c | 591 | } |
9ab4a725 TTN |
592 | |
593 | minibuf_prompt_width = (int) current_column (); /* iftc */ | |
594 | ||
094d9789 RS |
595 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
596 | if (inherit_input_method) | |
597 | current_buffer->enable_multibyte_characters = enable_multibyte; | |
598 | ||
748dc60a | 599 | /* Put in the initial input. */ |
56a98455 | 600 | if (!NILP (initial)) |
f927c5ae JB |
601 | { |
602 | Finsert (1, &initial); | |
a9c26562 RS |
603 | if (INTEGERP (backup_n)) |
604 | Fforward_char (backup_n); | |
f927c5ae JB |
605 | } |
606 | ||
39e98b38 | 607 | clear_message (1, 1); |
f927c5ae JB |
608 | current_buffer->keymap = map; |
609 | ||
cee54539 | 610 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 611 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
612 | call1 (Qactivate_input_method, input_method); |
613 | ||
5c781212 RS |
614 | /* Run our hook, but not if it is empty. |
615 | (run-hooks would do nothing if it is empty, | |
fd771ceb | 616 | but it's important to save time here in the usual case.) */ |
92d3b06e RS |
617 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
618 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
619 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
620 | ||
4e6b7204 MB |
621 | /* Don't allow the user to undo past this point. */ |
622 | current_buffer->undo_list = Qnil; | |
623 | ||
f927c5ae JB |
624 | recursive_edit_1 (); |
625 | ||
626 | /* If cursor is on the minibuffer line, | |
627 | show the user we have exited by putting it in column 0. */ | |
279cf52c | 628 | if (XWINDOW (minibuf_window)->cursor.vpos >= 0 |
f927c5ae JB |
629 | && !noninteractive) |
630 | { | |
279cf52c GM |
631 | XWINDOW (minibuf_window)->cursor.hpos = 0; |
632 | XWINDOW (minibuf_window)->cursor.x = 0; | |
633 | XWINDOW (minibuf_window)->must_be_updated_p = 1; | |
a4aafc54 | 634 | update_frame (XFRAME (selected_frame), 1, 1); |
337aaf1f GM |
635 | if (rif && rif->flush_display) |
636 | rif->flush_display (XFRAME (XWINDOW (minibuf_window)->frame)); | |
f927c5ae JB |
637 | } |
638 | ||
c3421833 | 639 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 640 | Fset_buffer (minibuffer); |
be95a9b6 | 641 | if (allow_props) |
a346ec72 | 642 | val = Fminibuffer_contents (); |
be95a9b6 | 643 | else |
a346ec72 | 644 | val = Fminibuffer_contents_no_properties (); |
770970cb | 645 | |
b278606c | 646 | /* VAL is the string of minibuffer text. */ |
7019cca7 | 647 | |
b278606c BF |
648 | last_minibuf_string = val; |
649 | ||
3ab14176 | 650 | /* Add the value to the appropriate history list unless it is empty. */ |
d5db4077 | 651 | if (SCHARS (val) != 0 |
c6d65724 | 652 | && SYMBOLP (Vminibuffer_history_variable)) |
3ab14176 KH |
653 | { |
654 | /* If the caller wanted to save the value read on a history list, | |
655 | then do so if the value is not already the front of the list. */ | |
656 | Lisp_Object histval; | |
c6d65724 RS |
657 | |
658 | /* If variable is unbound, make it nil. */ | |
f5c1dd0d | 659 | if (EQ (SYMBOL_VALUE (Vminibuffer_history_variable), Qunbound)) |
c6d65724 RS |
660 | Fset (Vminibuffer_history_variable, Qnil); |
661 | ||
3ab14176 KH |
662 | histval = Fsymbol_value (Vminibuffer_history_variable); |
663 | ||
664 | /* The value of the history variable must be a cons or nil. Other | |
665 | values are unacceptable. We silently ignore these values. */ | |
666 | if (NILP (histval) | |
9f6131cf RS |
667 | || (CONSP (histval) |
668 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
669 | { |
670 | Lisp_Object length; | |
671 | ||
672 | histval = Fcons (last_minibuf_string, histval); | |
673 | Fset (Vminibuffer_history_variable, histval); | |
674 | ||
675 | /* Truncate if requested. */ | |
676 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
677 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
678 | if (INTEGERP (length)) |
679 | { | |
680 | if (XINT (length) <= 0) | |
681 | Fset (Vminibuffer_history_variable, Qnil); | |
682 | else | |
683 | { | |
684 | Lisp_Object temp; | |
685 | ||
686 | temp = Fnthcdr (Fsub1 (length), histval); | |
687 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
688 | } | |
689 | } | |
77aa8edf | 690 | } |
9f6131cf RS |
691 | } |
692 | ||
693 | /* If Lisp form desired instead of string, parse it. */ | |
694 | if (expflag) | |
edfef199 | 695 | val = string_to_object (val, defalt); |
3ab14176 | 696 | |
00a34088 RS |
697 | /* The appropriate frame will get selected |
698 | in set-window-configuration. */ | |
699 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
700 | } |
701 | ||
702 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
703 | depth = 0 is the lowest allowed argument, and that is the value | |
704 | used for nonrecursive minibuffer invocations */ | |
705 | ||
706 | Lisp_Object | |
707 | get_minibuffer (depth) | |
708 | int depth; | |
709 | { | |
710 | Lisp_Object tail, num, buf; | |
9f6c23bc | 711 | char name[24]; |
f927c5ae JB |
712 | extern Lisp_Object nconc2 (); |
713 | ||
5a866662 | 714 | XSETFASTINT (num, depth); |
f927c5ae | 715 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 716 | if (NILP (tail)) |
f927c5ae JB |
717 | { |
718 | tail = Fcons (Qnil, Qnil); | |
719 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
720 | } | |
721 | buf = Fcar (tail); | |
56a98455 | 722 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
723 | { |
724 | sprintf (name, " *Minibuf-%d*", depth); | |
725 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
726 | |
727 | /* Although the buffer's name starts with a space, undo should be | |
728 | enabled in it. */ | |
729 | Fbuffer_enable_undo (buf); | |
730 | ||
f3fbd155 | 731 | XSETCAR (tail, buf); |
f927c5ae JB |
732 | } |
733 | else | |
5956f71d | 734 | { |
aed13378 | 735 | int count = SPECPDL_INDEX (); |
6b3faad8 | 736 | |
5956f71d | 737 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
738 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
739 | Fset_buffer (buf); | |
740 | Fkill_all_local_variables (); | |
741 | unbind_to (count, Qnil); | |
5956f71d | 742 | } |
64a3a3c0 | 743 | |
f927c5ae JB |
744 | return buf; |
745 | } | |
746 | ||
279cf52c GM |
747 | /* This function is called on exiting minibuffer, whether normally or |
748 | not, and it restores the current window, buffer, etc. */ | |
f927c5ae | 749 | |
9d815fd9 | 750 | static Lisp_Object |
43bad991 JB |
751 | read_minibuf_unwind (data) |
752 | Lisp_Object data; | |
f927c5ae | 753 | { |
c24e1160 | 754 | Lisp_Object old_deactivate_mark; |
59115a22 | 755 | Lisp_Object window; |
c24e1160 | 756 | |
0a1dd1c5 RS |
757 | /* We are exiting the minibuffer one way or the other, |
758 | so run the hook. */ | |
759 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
760 | && !NILP (Vrun_hooks)) | |
060ffec1 | 761 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 762 | |
f927c5ae | 763 | /* If this was a recursive minibuffer, |
59115a22 | 764 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 765 | minibuf_level--; |
f927c5ae | 766 | |
59115a22 | 767 | window = minibuf_window; |
279cf52c GM |
768 | /* To keep things predictable, in case it matters, let's be in the |
769 | minibuffer when we reset the relevant variables. */ | |
59115a22 RS |
770 | Fset_buffer (XWINDOW (window)->buffer); |
771 | ||
772 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
773 | minibuf_prompt = Fcar (minibuf_save_list); |
774 | minibuf_save_list = Fcdr (minibuf_save_list); | |
775 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
776 | minibuf_save_list = Fcdr (minibuf_save_list); | |
777 | Vhelp_form = Fcar (minibuf_save_list); | |
778 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 779 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
780 | minibuf_save_list = Fcdr (minibuf_save_list); |
781 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
782 | minibuf_save_list = Fcdr (minibuf_save_list); | |
783 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
784 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 785 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 786 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
787 | #if 0 |
788 | temp = Fcar (minibuf_save_list); | |
789 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
790 | minibuf_window = temp; | |
791 | #endif | |
30e13e56 | 792 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
793 | |
794 | /* Erase the minibuffer we were using at this level. */ | |
795 | { | |
aed13378 | 796 | int count = SPECPDL_INDEX (); |
59115a22 RS |
797 | /* Prevent error in erase-buffer. */ |
798 | specbind (Qinhibit_read_only, Qt); | |
bd819d14 | 799 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
800 | old_deactivate_mark = Vdeactivate_mark; |
801 | Ferase_buffer (); | |
802 | Vdeactivate_mark = old_deactivate_mark; | |
803 | unbind_to (count, Qnil); | |
804 | } | |
805 | ||
544e358d GM |
806 | /* When we get to the outmost level, make sure we resize the |
807 | mini-window back to its normal size. */ | |
808 | if (minibuf_level == 0) | |
1e3f16d5 | 809 | resize_mini_window (XWINDOW (window), 0); |
544e358d | 810 | |
59115a22 RS |
811 | /* Make sure minibuffer window is erased, not ignored. */ |
812 | windows_or_buffers_changed++; | |
813 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 814 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 | 815 | return Qnil; |
f927c5ae JB |
816 | } |
817 | \f | |
b9d721de | 818 | |
cee54539 | 819 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
af52c32d | 820 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 PJ |
821 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string |
822 | to be inserted into the minibuffer before reading input. | |
823 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input | |
824 | is STRING, but point is placed at position POSITION in the minibuffer. | |
825 | Third arg KEYMAP is a keymap to use whilst reading; | |
826 | if omitted or nil, the default is `minibuffer-local-map'. | |
fd771ceb | 827 | If fourth arg READ is non-nil, then interpret the result as a Lisp object |
a1f17501 PJ |
828 | and return that object: |
829 | in other words, do `(car (read-from-string INPUT-STRING))' | |
830 | Fifth arg HIST, if non-nil, specifies a history list | |
831 | and optionally the initial position in the list. | |
832 | It can be a symbol, which is the history list variable to use, | |
833 | or it can be a cons cell (HISTVAR . HISTPOS). | |
834 | In that case, HISTVAR is the history list variable to use, | |
835 | and HISTPOS is the initial position (the position in the list | |
836 | which INITIAL-CONTENTS corresponds to). | |
837 | Positions are counted starting from 1 at the beginning of the list. | |
838 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is available | |
839 | for history commands; but `read-from-minibuffer' does NOT return DEFAULT-VALUE | |
840 | if the user enters empty input! It returns the empty string. | |
841 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 842 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
843 | If the variable `minibuffer-allow-text-properties' is non-nil, |
844 | then the string which is returned includes whatever text properties | |
af52c32d MB |
845 | were present in the minibuffer. Otherwise the value has no text properties. */) |
846 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
e5d4686b | 847 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 848 | Lisp_Object inherit_input_method; |
f927c5ae JB |
849 | { |
850 | int pos = 0; | |
e5d4686b | 851 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
852 | struct gcpro gcpro1; |
853 | ||
770970cb | 854 | position = Qnil; |
f927c5ae | 855 | |
b7826503 | 856 | CHECK_STRING (prompt); |
68e5a8a2 | 857 | if (!NILP (initial_contents)) |
f927c5ae | 858 | { |
7510b296 | 859 | if (CONSP (initial_contents)) |
770970cb | 860 | { |
68e5a8a2 RS |
861 | position = Fcdr (initial_contents); |
862 | initial_contents = Fcar (initial_contents); | |
770970cb | 863 | } |
b7826503 | 864 | CHECK_STRING (initial_contents); |
56a98455 | 865 | if (!NILP (position)) |
f927c5ae | 866 | { |
b7826503 | 867 | CHECK_NUMBER (position); |
f927c5ae | 868 | /* Convert to distance from end of input. */ |
18fef111 RS |
869 | if (XINT (position) < 1) |
870 | /* A number too small means the beginning of the string. */ | |
d5db4077 | 871 | pos = - SCHARS (initial_contents); |
18fef111 | 872 | else |
d5db4077 | 873 | pos = XINT (position) - 1 - SCHARS (initial_contents); |
f927c5ae JB |
874 | } |
875 | } | |
876 | ||
56a98455 | 877 | if (NILP (keymap)) |
f927c5ae JB |
878 | keymap = Vminibuffer_local_map; |
879 | else | |
02067692 | 880 | keymap = get_keymap (keymap, 1, 0); |
770970cb | 881 | |
7510b296 | 882 | if (SYMBOLP (hist)) |
770970cb RS |
883 | { |
884 | histvar = hist; | |
885 | histpos = Qnil; | |
886 | } | |
887 | else | |
888 | { | |
889 | histvar = Fcar_safe (hist); | |
890 | histpos = Fcdr_safe (hist); | |
891 | } | |
892 | if (NILP (histvar)) | |
893 | histvar = Qminibuffer_history; | |
894 | if (NILP (histpos)) | |
5a866662 | 895 | XSETFASTINT (histpos, 0); |
770970cb | 896 | |
1d8d92f4 | 897 | GCPRO1 (default_value); |
e5d4686b RS |
898 | val = read_minibuf (keymap, initial_contents, prompt, |
899 | make_number (pos), !NILP (read), | |
c3421833 | 900 | histvar, histpos, default_value, |
cee54539 KH |
901 | minibuffer_allow_text_properties, |
902 | !NILP (inherit_input_method)); | |
1d8d92f4 | 903 | UNGCPRO; |
e5d4686b | 904 | return val; |
f927c5ae JB |
905 | } |
906 | ||
907 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
af52c32d | 908 | doc: /* Return a Lisp object read using the minibuffer. |
a1f17501 | 909 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
af52c32d MB |
910 | is a string to insert in the minibuffer before reading. */) |
911 | (prompt, initial_contents) | |
f927c5ae JB |
912 | Lisp_Object prompt, initial_contents; |
913 | { | |
b7826503 | 914 | CHECK_STRING (prompt); |
56a98455 | 915 | if (!NILP (initial_contents)) |
b7826503 | 916 | CHECK_STRING (initial_contents); |
770970cb | 917 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 918 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 919 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
920 | } |
921 | ||
922 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
af52c32d | 923 | doc: /* Return value of Lisp expression read using the minibuffer. |
a1f17501 | 924 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
af52c32d MB |
925 | is a string to insert in the minibuffer before reading. */) |
926 | (prompt, initial_contents) | |
f927c5ae JB |
927 | Lisp_Object prompt, initial_contents; |
928 | { | |
929 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
930 | } | |
931 | ||
932 | /* Functions that use the minibuffer to read various things. */ | |
933 | ||
cee54539 | 934 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
af52c32d | 935 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 PJ |
936 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading. |
937 | The third arg HISTORY, if non-nil, specifies a history list | |
938 | and optionally the initial position in the list. | |
939 | See `read-from-minibuffer' for details of HISTORY argument. | |
940 | Fourth arg DEFAULT-VALUE is the default value. If non-nil, it is used | |
941 | for history commands, and as the value to return if the user enters | |
942 | the empty string. | |
943 | Fifth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 944 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 945 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 946 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 947 | Lisp_Object inherit_input_method; |
f927c5ae | 948 | { |
b9a86585 RS |
949 | Lisp_Object val; |
950 | val = Fread_from_minibuffer (prompt, initial_input, Qnil, | |
951 | Qnil, history, default_value, | |
952 | inherit_input_method); | |
d5db4077 | 953 | if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (default_value)) |
b9a86585 RS |
954 | val = default_value; |
955 | return val; | |
f927c5ae JB |
956 | } |
957 | ||
cee54539 | 958 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
af52c32d | 959 | doc: /* Read a string from the terminal, not allowing blanks. |
a1f17501 PJ |
960 | Prompt with PROMPT, and provide INITIAL as an initial value of the input string. |
961 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 962 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 963 | (prompt, initial, inherit_input_method) |
c923ccc9 | 964 | Lisp_Object prompt, initial, inherit_input_method; |
f927c5ae | 965 | { |
b7826503 | 966 | CHECK_STRING (prompt); |
c923ccc9 | 967 | if (! NILP (initial)) |
b7826503 | 968 | CHECK_STRING (initial); |
f927c5ae | 969 | |
c923ccc9 | 970 | return read_minibuf (Vminibuffer_local_ns_map, initial, prompt, Qnil, |
cee54539 KH |
971 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
972 | !NILP (inherit_input_method)); | |
f927c5ae JB |
973 | } |
974 | ||
e5d4686b | 975 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
af52c32d | 976 | doc: /* Read the name of a command and return as a symbol. |
fd771ceb | 977 | Prompt with PROMPT. By default, return DEFAULT-VALUE. */) |
af52c32d | 978 | (prompt, default_value) |
e5d4686b | 979 | Lisp_Object prompt, default_value; |
f927c5ae | 980 | { |
7c8d9931 RS |
981 | Lisp_Object name, default_string; |
982 | ||
983 | if (NILP (default_value)) | |
984 | default_string = Qnil; | |
985 | else if (SYMBOLP (default_value)) | |
caa4733e | 986 | default_string = SYMBOL_NAME (default_value); |
7c8d9931 RS |
987 | else |
988 | default_string = default_value; | |
9ab4a725 | 989 | |
7c8d9931 RS |
990 | name = Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, |
991 | Qnil, Qnil, default_string, Qnil); | |
992 | if (NILP (name)) | |
993 | return name; | |
994 | return Fintern (name, Qnil); | |
f927c5ae JB |
995 | } |
996 | ||
997 | #ifdef NOTDEF | |
998 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
af52c32d | 999 | doc: /* One arg PROMPT, a string. Read the name of a function and return as a symbol. |
fd771ceb | 1000 | Prompt with PROMPT. */) |
af52c32d | 1001 | (prompt) |
f927c5ae JB |
1002 | Lisp_Object prompt; |
1003 | { | |
cee54539 | 1004 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
1005 | Qnil); |
1006 | } | |
1007 | #endif /* NOTDEF */ | |
1008 | ||
e5d4686b | 1009 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
af52c32d | 1010 | doc: /* Read the name of a user variable and return it as a symbol. |
fd771ceb | 1011 | Prompt with PROMPT. By default, return DEFAULT-VALUE. |
af52c32d MB |
1012 | A user variable is one whose documentation starts with a `*' character. */) |
1013 | (prompt, default_value) | |
e5d4686b | 1014 | Lisp_Object prompt, default_value; |
f927c5ae | 1015 | { |
7c8d9931 RS |
1016 | Lisp_Object name, default_string; |
1017 | ||
1018 | if (NILP (default_value)) | |
1019 | default_string = Qnil; | |
1020 | else if (SYMBOLP (default_value)) | |
caa4733e | 1021 | default_string = SYMBOL_NAME (default_value); |
7c8d9931 RS |
1022 | else |
1023 | default_string = default_value; | |
9ab4a725 | 1024 | |
7c8d9931 RS |
1025 | name = Fcompleting_read (prompt, Vobarray, |
1026 | Quser_variable_p, Qt, | |
1027 | Qnil, Qnil, default_string, Qnil); | |
1028 | if (NILP (name)) | |
1029 | return name; | |
1030 | return Fintern (name, Qnil); | |
f927c5ae JB |
1031 | } |
1032 | ||
1033 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
fd771ceb PJ |
1034 | doc: /* Read the name of a buffer and return as a string. |
1035 | Prompt with PROMPT. | |
a1f17501 | 1036 | Optional second arg DEF is value to return if user enters an empty line. |
fd771ceb PJ |
1037 | If optional third arg REQUIRE-MATCH is non-nil, |
1038 | only existing buffer names are allowed. */) | |
af52c32d | 1039 | (prompt, def, require_match) |
f927c5ae JB |
1040 | Lisp_Object prompt, def, require_match; |
1041 | { | |
eebbfb01 | 1042 | Lisp_Object args[4]; |
9ab4a725 | 1043 | |
7510b296 | 1044 | if (BUFFERP (def)) |
f927c5ae | 1045 | def = XBUFFER (def)->name; |
eebbfb01 KH |
1046 | |
1047 | if (NILP (Vread_buffer_function)) | |
1048 | { | |
1049 | if (!NILP (def)) | |
1050 | { | |
1051 | args[0] = build_string ("%s(default %s) "); | |
1052 | args[1] = prompt; | |
1053 | args[2] = def; | |
1054 | prompt = Fformat (3, args); | |
1055 | } | |
1056 | ||
1057 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
406e55df RS |
1058 | require_match, Qnil, Qbuffer_name_history, |
1059 | def, Qnil); | |
eebbfb01 KH |
1060 | } |
1061 | else | |
f927c5ae | 1062 | { |
eebbfb01 | 1063 | args[0] = Vread_buffer_function; |
f927c5ae JB |
1064 | args[1] = prompt; |
1065 | args[2] = def; | |
eebbfb01 KH |
1066 | args[3] = require_match; |
1067 | return Ffuncall(4, args); | |
f927c5ae | 1068 | } |
f927c5ae JB |
1069 | } |
1070 | \f | |
ec067ec7 RS |
1071 | static Lisp_Object |
1072 | minibuf_conform_representation (string, basis) | |
1073 | Lisp_Object string, basis; | |
1074 | { | |
1075 | if (STRING_MULTIBYTE (string) == STRING_MULTIBYTE (basis)) | |
1076 | return string; | |
1077 | ||
1078 | if (STRING_MULTIBYTE (string)) | |
1079 | return Fstring_make_unibyte (string); | |
1080 | else | |
1081 | return Fstring_make_multibyte (string); | |
1082 | } | |
1083 | ||
f927c5ae | 1084 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, |
af52c32d | 1085 | doc: /* Return common substring of all completions of STRING in ALIST. |
a1f17501 PJ |
1086 | Each car of each element of ALIST is tested to see if it begins with STRING. |
1087 | All that match are compared together; the longest initial sequence | |
1088 | common to all matches is returned as a string. | |
1089 | If there is no match at all, nil is returned. | |
1090 | For a unique match which is exact, t is returned. | |
1091 | ||
85cd4372 SM |
1092 | If ALIST is a hash-table, all the string keys are the possible matches. |
1093 | If ALIST is an obarray, the names of all symbols in the obarray | |
1094 | are the possible matches. | |
a1f17501 PJ |
1095 | |
1096 | ALIST can also be a function to do the completion itself. | |
1097 | It receives three arguments: the values STRING, PREDICATE and nil. | |
1098 | Whatever it returns becomes the value of `try-completion'. | |
1099 | ||
1100 | If optional third argument PREDICATE is non-nil, | |
1101 | it is used to test each possible match. | |
1102 | The match is a candidate only if PREDICATE returns non-nil. | |
1103 | The argument given to PREDICATE is the alist element | |
85cd4372 SM |
1104 | or the symbol from the obarray. If ALIST is a hash-table, |
1105 | predicate is called with two arguments: the key and the value. | |
a1f17501 | 1106 | Additionally to this predicate, `completion-regexp-list' |
af52c32d MB |
1107 | is used to further constrain the set of candidates. */) |
1108 | (string, alist, predicate) | |
7efd36fc | 1109 | Lisp_Object string, alist, predicate; |
f927c5ae JB |
1110 | { |
1111 | Lisp_Object bestmatch, tail, elt, eltstring; | |
af2b7cd5 | 1112 | /* Size in bytes of BESTMATCH. */ |
6bbd7a29 | 1113 | int bestmatchsize = 0; |
af2b7cd5 | 1114 | /* These are in bytes, too. */ |
f927c5ae | 1115 | int compare, matchsize; |
85cd4372 SM |
1116 | int type = HASH_TABLE_P (alist) ? 3 |
1117 | : VECTORP (alist) ? 2 | |
1118 | : NILP (alist) || (CONSP (alist) | |
1119 | && (!SYMBOLP (XCAR (alist)) | |
1120 | || NILP (XCAR (alist)))); | |
6bbd7a29 | 1121 | int index = 0, obsize = 0; |
f927c5ae JB |
1122 | int matchcount = 0; |
1123 | Lisp_Object bucket, zero, end, tem; | |
1124 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1125 | ||
b7826503 | 1126 | CHECK_STRING (string); |
85cd4372 | 1127 | if (type == 0) |
7efd36fc | 1128 | return call3 (alist, string, predicate, Qnil); |
f927c5ae | 1129 | |
6bbd7a29 | 1130 | bestmatch = bucket = Qnil; |
f927c5ae JB |
1131 | |
1132 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1133 | tail = alist; | |
85cd4372 | 1134 | if (type == 2) |
f927c5ae | 1135 | { |
f927c5ae JB |
1136 | obsize = XVECTOR (alist)->size; |
1137 | bucket = XVECTOR (alist)->contents[index]; | |
1138 | } | |
1139 | ||
1140 | while (1) | |
1141 | { | |
85cd4372 | 1142 | /* Get the next element of the alist, obarray, or hash-table. */ |
f927c5ae JB |
1143 | /* Exit the loop if the elements are all used up. */ |
1144 | /* elt gets the alist element or symbol. | |
1145 | eltstring gets the name to check as a completion. */ | |
1146 | ||
85cd4372 | 1147 | if (type == 1) |
f927c5ae | 1148 | { |
695deb18 | 1149 | if (!CONSP (tail)) |
f927c5ae | 1150 | break; |
695deb18 SM |
1151 | elt = XCAR (tail); |
1152 | eltstring = CONSP (elt) ? XCAR (elt) : elt; | |
1153 | tail = XCDR (tail); | |
f927c5ae | 1154 | } |
85cd4372 | 1155 | else if (type == 2) |
f927c5ae JB |
1156 | { |
1157 | if (XFASTINT (bucket) != 0) | |
1158 | { | |
1159 | elt = bucket; | |
1160 | eltstring = Fsymbol_name (elt); | |
1161 | if (XSYMBOL (bucket)->next) | |
1162 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1163 | else | |
5a866662 | 1164 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1165 | } |
1166 | else if (++index >= obsize) | |
1167 | break; | |
1168 | else | |
1169 | { | |
1170 | bucket = XVECTOR (alist)->contents[index]; | |
1171 | continue; | |
1172 | } | |
1173 | } | |
85cd4372 SM |
1174 | else /* if (type == 3) */ |
1175 | { | |
1176 | while (index < HASH_TABLE_SIZE (XHASH_TABLE (alist)) | |
1177 | && NILP (HASH_HASH (XHASH_TABLE (alist), index))) | |
1178 | index++; | |
1179 | if (index >= HASH_TABLE_SIZE (XHASH_TABLE (alist))) | |
1180 | break; | |
1181 | else | |
1182 | elt = eltstring = HASH_KEY (XHASH_TABLE (alist), index++); | |
1183 | } | |
f927c5ae JB |
1184 | |
1185 | /* Is this element a possible completion? */ | |
1186 | ||
7510b296 | 1187 | if (STRINGP (eltstring) |
d5db4077 | 1188 | && SCHARS (string) <= SCHARS (eltstring) |
69f4ef20 | 1189 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1190 | make_number (SCHARS (string)), |
69f4ef20 RS |
1191 | string, make_number (0), Qnil, |
1192 | completion_ignore_case ?Qt : Qnil), | |
1193 | EQ (Qt, tem))) | |
f927c5ae JB |
1194 | { |
1195 | /* Yes. */ | |
42006772 RS |
1196 | Lisp_Object regexps; |
1197 | Lisp_Object zero; | |
5a866662 | 1198 | XSETFASTINT (zero, 0); |
42006772 RS |
1199 | |
1200 | /* Ignore this element if it fails to match all the regexps. */ | |
1201 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1202 | regexps = XCDR (regexps)) |
42006772 | 1203 | { |
7539e11f | 1204 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1205 | if (NILP (tem)) |
1206 | break; | |
1207 | } | |
1208 | if (CONSP (regexps)) | |
1209 | continue; | |
1210 | ||
f927c5ae JB |
1211 | /* Ignore this element if there is a predicate |
1212 | and the predicate doesn't like it. */ | |
1213 | ||
7efd36fc | 1214 | if (!NILP (predicate)) |
f927c5ae | 1215 | { |
7efd36fc | 1216 | if (EQ (predicate, Qcommandp)) |
c837f4f9 | 1217 | tem = Fcommandp (elt, Qnil); |
f927c5ae JB |
1218 | else |
1219 | { | |
1220 | GCPRO4 (tail, string, eltstring, bestmatch); | |
85cd4372 SM |
1221 | tem = type == 3 |
1222 | ? call2 (predicate, elt, | |
1223 | HASH_VALUE (XHASH_TABLE (alist), index - 1)) | |
1224 | : call1 (predicate, elt); | |
f927c5ae JB |
1225 | UNGCPRO; |
1226 | } | |
56a98455 | 1227 | if (NILP (tem)) continue; |
f927c5ae JB |
1228 | } |
1229 | ||
1230 | /* Update computation of how much all possible completions match */ | |
1231 | ||
56a98455 | 1232 | if (NILP (bestmatch)) |
af2b7cd5 | 1233 | { |
85cd4372 | 1234 | matchcount = 1; |
af2b7cd5 | 1235 | bestmatch = eltstring; |
d5db4077 | 1236 | bestmatchsize = SCHARS (eltstring); |
af2b7cd5 | 1237 | } |
f927c5ae JB |
1238 | else |
1239 | { | |
d5db4077 | 1240 | compare = min (bestmatchsize, SCHARS (eltstring)); |
69f4ef20 RS |
1241 | tem = Fcompare_strings (bestmatch, make_number (0), |
1242 | make_number (compare), | |
1243 | eltstring, make_number (0), | |
1244 | make_number (compare), | |
1245 | completion_ignore_case ? Qt : Qnil); | |
1246 | if (EQ (tem, Qt)) | |
1247 | matchsize = compare; | |
1248 | else if (XINT (tem) < 0) | |
1249 | matchsize = - XINT (tem) - 1; | |
1250 | else | |
1251 | matchsize = XINT (tem) - 1; | |
1252 | ||
52b14ac0 | 1253 | if (matchsize < 0) |
695deb18 | 1254 | /* When can this happen ? -stef */ |
52b14ac0 JB |
1255 | matchsize = compare; |
1256 | if (completion_ignore_case) | |
1257 | { | |
1258 | /* If this is an exact match except for case, | |
1259 | use it as the best match rather than one that is not an | |
1260 | exact match. This way, we get the case pattern | |
1261 | of the actual match. */ | |
d5db4077 KR |
1262 | if ((matchsize == SCHARS (eltstring) |
1263 | && matchsize < SCHARS (bestmatch)) | |
52b14ac0 JB |
1264 | || |
1265 | /* If there is more than one exact match ignoring case, | |
1266 | and one of them is exact including case, | |
1267 | prefer that one. */ | |
1268 | /* If there is no exact match ignoring case, | |
1269 | prefer a match that does not change the case | |
1270 | of the input. */ | |
d5db4077 | 1271 | ((matchsize == SCHARS (eltstring)) |
52b14ac0 | 1272 | == |
d5db4077 | 1273 | (matchsize == SCHARS (bestmatch)) |
69f4ef20 | 1274 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1275 | make_number (SCHARS (string)), |
69f4ef20 RS |
1276 | string, make_number (0), |
1277 | Qnil, | |
1278 | Qnil), | |
1279 | EQ (Qt, tem)) | |
1280 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
d5db4077 | 1281 | make_number (SCHARS (string)), |
69f4ef20 RS |
1282 | string, make_number (0), |
1283 | Qnil, | |
1284 | Qnil), | |
1285 | ! EQ (Qt, tem)))) | |
52b14ac0 JB |
1286 | bestmatch = eltstring; |
1287 | } | |
d5db4077 | 1288 | if (bestmatchsize != SCHARS (eltstring) |
85cd4372 SM |
1289 | || bestmatchsize != matchsize) |
1290 | /* Don't count the same string multiple times. */ | |
1291 | matchcount++; | |
52b14ac0 | 1292 | bestmatchsize = matchsize; |
d5db4077 | 1293 | if (matchsize <= SCHARS (string) |
695deb18 SM |
1294 | && matchcount > 1) |
1295 | /* No need to look any further. */ | |
1296 | break; | |
f927c5ae JB |
1297 | } |
1298 | } | |
1299 | } | |
1300 | ||
56a98455 | 1301 | if (NILP (bestmatch)) |
f927c5ae | 1302 | return Qnil; /* No completions found */ |
52b14ac0 JB |
1303 | /* If we are ignoring case, and there is no exact match, |
1304 | and no additional text was supplied, | |
1305 | don't change the case of what the user typed. */ | |
d5db4077 KR |
1306 | if (completion_ignore_case && bestmatchsize == SCHARS (string) |
1307 | && SCHARS (bestmatch) > bestmatchsize) | |
ec067ec7 | 1308 | return minibuf_conform_representation (string, bestmatch); |
52b14ac0 JB |
1309 | |
1310 | /* Return t if the supplied string is an exact match (counting case); | |
1311 | it does not require any change to be made. */ | |
d5db4077 | 1312 | if (matchcount == 1 && bestmatchsize == SCHARS (string) |
69f4ef20 RS |
1313 | && (tem = Fcompare_strings (bestmatch, make_number (0), |
1314 | make_number (bestmatchsize), | |
1315 | string, make_number (0), | |
1316 | make_number (bestmatchsize), | |
1317 | Qnil), | |
1318 | EQ (Qt, tem))) | |
f927c5ae JB |
1319 | return Qt; |
1320 | ||
5a866662 KH |
1321 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1322 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1323 | return Fsubstring (bestmatch, zero, end); |
1324 | } | |
f927c5ae | 1325 | \f |
89a255dc | 1326 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
af52c32d | 1327 | doc: /* Search for partial matches to STRING in ALIST. |
a1f17501 PJ |
1328 | Each car of each element of ALIST is tested to see if it begins with STRING. |
1329 | The value is a list of all the strings from ALIST that match. | |
1330 | ||
85cd4372 SM |
1331 | If ALIST is a hash-table, all the string keys are the possible matches. |
1332 | If ALIST is an obarray, the names of all symbols in the obarray | |
1333 | are the possible matches. | |
a1f17501 PJ |
1334 | |
1335 | ALIST can also be a function to do the completion itself. | |
1336 | It receives three arguments: the values STRING, PREDICATE and t. | |
1337 | Whatever it returns becomes the value of `all-completions'. | |
1338 | ||
1339 | If optional third argument PREDICATE is non-nil, | |
1340 | it is used to test each possible match. | |
1341 | The match is a candidate only if PREDICATE returns non-nil. | |
1342 | The argument given to PREDICATE is the alist element | |
85cd4372 SM |
1343 | or the symbol from the obarray. If ALIST is a hash-table, |
1344 | predicate is called with two arguments: the key and the value. | |
a1f17501 PJ |
1345 | Additionally to this predicate, `completion-regexp-list' |
1346 | is used to further constrain the set of candidates. | |
1347 | ||
1348 | If the optional fourth argument HIDE-SPACES is non-nil, | |
1349 | strings in ALIST that start with a space | |
af52c32d MB |
1350 | are ignored unless STRING itself starts with a space. */) |
1351 | (string, alist, predicate, hide_spaces) | |
7efd36fc | 1352 | Lisp_Object string, alist, predicate, hide_spaces; |
f927c5ae JB |
1353 | { |
1354 | Lisp_Object tail, elt, eltstring; | |
1355 | Lisp_Object allmatches; | |
85cd4372 SM |
1356 | int type = HASH_TABLE_P (alist) ? 3 |
1357 | : VECTORP (alist) ? 2 | |
1358 | : NILP (alist) || (CONSP (alist) | |
1359 | && (!SYMBOLP (XCAR (alist)) | |
1360 | || NILP (XCAR (alist)))); | |
6bbd7a29 | 1361 | int index = 0, obsize = 0; |
f927c5ae JB |
1362 | Lisp_Object bucket, tem; |
1363 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1364 | ||
b7826503 | 1365 | CHECK_STRING (string); |
85cd4372 SM |
1366 | if (type == 0) |
1367 | return call3 (alist, string, predicate, Qt); | |
6bbd7a29 | 1368 | allmatches = bucket = Qnil; |
f927c5ae JB |
1369 | |
1370 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1371 | tail = alist; | |
85cd4372 | 1372 | if (type == 2) |
f927c5ae | 1373 | { |
f927c5ae JB |
1374 | obsize = XVECTOR (alist)->size; |
1375 | bucket = XVECTOR (alist)->contents[index]; | |
1376 | } | |
1377 | ||
1378 | while (1) | |
1379 | { | |
85cd4372 | 1380 | /* Get the next element of the alist, obarray, or hash-table. */ |
f927c5ae JB |
1381 | /* Exit the loop if the elements are all used up. */ |
1382 | /* elt gets the alist element or symbol. | |
1383 | eltstring gets the name to check as a completion. */ | |
1384 | ||
85cd4372 | 1385 | if (type == 1) |
f927c5ae | 1386 | { |
695deb18 | 1387 | if (!CONSP (tail)) |
f927c5ae | 1388 | break; |
695deb18 SM |
1389 | elt = XCAR (tail); |
1390 | eltstring = CONSP (elt) ? XCAR (elt) : elt; | |
1391 | tail = XCDR (tail); | |
f927c5ae | 1392 | } |
85cd4372 | 1393 | else if (type == 2) |
f927c5ae JB |
1394 | { |
1395 | if (XFASTINT (bucket) != 0) | |
1396 | { | |
1397 | elt = bucket; | |
1398 | eltstring = Fsymbol_name (elt); | |
1399 | if (XSYMBOL (bucket)->next) | |
1400 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1401 | else | |
5a866662 | 1402 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1403 | } |
1404 | else if (++index >= obsize) | |
1405 | break; | |
1406 | else | |
1407 | { | |
1408 | bucket = XVECTOR (alist)->contents[index]; | |
1409 | continue; | |
1410 | } | |
1411 | } | |
85cd4372 SM |
1412 | else /* if (type == 3) */ |
1413 | { | |
1414 | while (index < HASH_TABLE_SIZE (XHASH_TABLE (alist)) | |
1415 | && NILP (HASH_HASH (XHASH_TABLE (alist), index))) | |
1416 | index++; | |
1417 | if (index >= HASH_TABLE_SIZE (XHASH_TABLE (alist))) | |
1418 | break; | |
1419 | else | |
1420 | elt = eltstring = HASH_KEY (XHASH_TABLE (alist), index++); | |
1421 | } | |
f927c5ae JB |
1422 | |
1423 | /* Is this element a possible completion? */ | |
1424 | ||
7510b296 | 1425 | if (STRINGP (eltstring) |
d5db4077 | 1426 | && SCHARS (string) <= SCHARS (eltstring) |
89a255dc | 1427 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 | 1428 | unless the input starts with space. */ |
d5db4077 KR |
1429 | && ((SBYTES (string) > 0 |
1430 | && SREF (string, 0) == ' ') | |
1431 | || SREF (eltstring, 0) != ' ' | |
89a255dc | 1432 | || NILP (hide_spaces)) |
69f4ef20 | 1433 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1434 | make_number (SCHARS (string)), |
69f4ef20 | 1435 | string, make_number (0), |
d5db4077 | 1436 | make_number (SCHARS (string)), |
69f4ef20 RS |
1437 | completion_ignore_case ? Qt : Qnil), |
1438 | EQ (Qt, tem))) | |
f927c5ae JB |
1439 | { |
1440 | /* Yes. */ | |
42006772 RS |
1441 | Lisp_Object regexps; |
1442 | Lisp_Object zero; | |
5a866662 | 1443 | XSETFASTINT (zero, 0); |
42006772 RS |
1444 | |
1445 | /* Ignore this element if it fails to match all the regexps. */ | |
1446 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1447 | regexps = XCDR (regexps)) |
42006772 | 1448 | { |
7539e11f | 1449 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1450 | if (NILP (tem)) |
1451 | break; | |
1452 | } | |
1453 | if (CONSP (regexps)) | |
1454 | continue; | |
1455 | ||
f927c5ae JB |
1456 | /* Ignore this element if there is a predicate |
1457 | and the predicate doesn't like it. */ | |
1458 | ||
7efd36fc | 1459 | if (!NILP (predicate)) |
f927c5ae | 1460 | { |
7efd36fc | 1461 | if (EQ (predicate, Qcommandp)) |
c837f4f9 | 1462 | tem = Fcommandp (elt, Qnil); |
f927c5ae JB |
1463 | else |
1464 | { | |
1465 | GCPRO4 (tail, eltstring, allmatches, string); | |
85cd4372 SM |
1466 | tem = type == 3 |
1467 | ? call2 (predicate, elt, | |
1468 | HASH_VALUE (XHASH_TABLE (alist), index - 1)) | |
1469 | : call1 (predicate, elt); | |
f927c5ae JB |
1470 | UNGCPRO; |
1471 | } | |
56a98455 | 1472 | if (NILP (tem)) continue; |
f927c5ae JB |
1473 | } |
1474 | /* Ok => put it on the list. */ | |
1475 | allmatches = Fcons (eltstring, allmatches); | |
1476 | } | |
1477 | } | |
1478 | ||
1479 | return Fnreverse (allmatches); | |
1480 | } | |
1481 | \f | |
1482 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1483 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1484 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
ccf330a6 | 1485 | Lisp_Object Vminibuffer_completing_file_name; |
f927c5ae | 1486 | |
cee54539 | 1487 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
af52c32d | 1488 | doc: /* Read a string in the minibuffer, with completion. |
a1f17501 PJ |
1489 | PROMPT is a string to prompt with; normally it ends in a colon and a space. |
1490 | TABLE is an alist whose elements' cars are strings, or an obarray. | |
1491 | TABLE can also be a function to do the completion itself. | |
1492 | PREDICATE limits completion to a subset of TABLE. | |
1493 | See `try-completion' and `all-completions' for more details | |
1494 | on completion, TABLE, and PREDICATE. | |
1495 | ||
1496 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless | |
1497 | the input is (or completes to) an element of TABLE or is null. | |
345c105f | 1498 | If it is also not t, typing RET does not exit if it does non-null completion. |
a1f17501 PJ |
1499 | If the input is null, `completing-read' returns an empty string, |
1500 | regardless of the value of REQUIRE-MATCH. | |
1501 | ||
1502 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially. | |
1503 | If it is (STRING . POSITION), the initial input | |
1504 | is STRING, but point is placed POSITION characters into the string. | |
345c105f RS |
1505 | This feature is deprecated--it is best to pass nil for INITIAL-INPUT |
1506 | and supply the default value DEF instead. The user can yank the | |
1507 | default value into the minibuffer easily using \\[next-history-element]. | |
9ab4a725 | 1508 | |
a1f17501 PJ |
1509 | HIST, if non-nil, specifies a history list |
1510 | and optionally the initial position in the list. | |
1511 | It can be a symbol, which is the history list variable to use, | |
1512 | or it can be a cons cell (HISTVAR . HISTPOS). | |
1513 | In that case, HISTVAR is the history list variable to use, | |
1514 | and HISTPOS is the initial position (the position in the list | |
1515 | which INITIAL-INPUT corresponds to). | |
1516 | Positions are counted starting from 1 at the beginning of the list. | |
1517 | DEF, if non-nil, is the default value. | |
1518 | ||
1519 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits | |
029a305c | 1520 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
1521 | |
1522 | Completion ignores case if the ambient value of | |
af52c32d MB |
1523 | `completion-ignore-case' is non-nil. */) |
1524 | (prompt, table, predicate, require_match, initial_input, hist, def, inherit_input_method) | |
d43f85c2 RS |
1525 | Lisp_Object prompt, table, predicate, require_match, initial_input; |
1526 | Lisp_Object hist, def, inherit_input_method; | |
f927c5ae | 1527 | { |
770970cb | 1528 | Lisp_Object val, histvar, histpos, position; |
d43f85c2 | 1529 | Lisp_Object init; |
770970cb | 1530 | int pos = 0; |
aed13378 | 1531 | int count = SPECPDL_INDEX (); |
0c8ee1a2 RS |
1532 | struct gcpro gcpro1; |
1533 | ||
d43f85c2 | 1534 | init = initial_input; |
0c8ee1a2 RS |
1535 | GCPRO1 (def); |
1536 | ||
f927c5ae | 1537 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1538 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae | 1539 | specbind (Qminibuffer_completion_confirm, |
695deb18 | 1540 | EQ (require_match, Qt) ? Qnil : require_match); |
f927c5ae | 1541 | last_exact_completion = Qnil; |
770970cb RS |
1542 | |
1543 | position = Qnil; | |
1544 | if (!NILP (init)) | |
1545 | { | |
7510b296 | 1546 | if (CONSP (init)) |
770970cb RS |
1547 | { |
1548 | position = Fcdr (init); | |
1549 | init = Fcar (init); | |
1550 | } | |
b7826503 | 1551 | CHECK_STRING (init); |
770970cb RS |
1552 | if (!NILP (position)) |
1553 | { | |
b7826503 | 1554 | CHECK_NUMBER (position); |
770970cb | 1555 | /* Convert to distance from end of input. */ |
d5db4077 | 1556 | pos = XINT (position) - SCHARS (init); |
770970cb RS |
1557 | } |
1558 | } | |
1559 | ||
7510b296 | 1560 | if (SYMBOLP (hist)) |
770970cb RS |
1561 | { |
1562 | histvar = hist; | |
1563 | histpos = Qnil; | |
1564 | } | |
1565 | else | |
1566 | { | |
1567 | histvar = Fcar_safe (hist); | |
1568 | histpos = Fcdr_safe (hist); | |
1569 | } | |
1570 | if (NILP (histvar)) | |
1571 | histvar = Qminibuffer_history; | |
1572 | if (NILP (histpos)) | |
5a866662 | 1573 | XSETFASTINT (histpos, 0); |
770970cb | 1574 | |
56a98455 | 1575 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1576 | ? Vminibuffer_local_completion_map |
1577 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1578 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1579 | histvar, histpos, def, 0, |
1580 | !NILP (inherit_input_method)); | |
b9a86585 | 1581 | |
d5db4077 | 1582 | if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (def)) |
b9a86585 RS |
1583 | val = def; |
1584 | ||
0c8ee1a2 | 1585 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1586 | } |
1587 | \f | |
f927c5ae | 1588 | Lisp_Object Fminibuffer_completion_help (); |
695deb18 | 1589 | Lisp_Object Fassoc_string (); |
5d2ca7ae RS |
1590 | |
1591 | /* Test whether TXT is an exact completion. */ | |
695deb18 SM |
1592 | DEFUN ("test-completion", Ftest_completion, Stest_completion, 2, 3, 0, |
1593 | doc: /* Return non-nil if STRING is a valid completion. | |
1594 | Takes the same arguments as `all-completions' and `try-completion'. | |
1595 | If ALIST is a function, it is called with three arguments: | |
1596 | the values STRING, PREDICATE and `lambda'. */) | |
1597 | (string, alist, predicate) | |
1598 | Lisp_Object string, alist, predicate; | |
5d2ca7ae | 1599 | { |
695deb18 | 1600 | Lisp_Object regexps, tem = Qnil; |
85cd4372 | 1601 | int i = 0; |
5d2ca7ae | 1602 | |
695deb18 SM |
1603 | CHECK_STRING (string); |
1604 | ||
1605 | if ((CONSP (alist) && (!SYMBOLP (XCAR (alist)) || NILP (XCAR (alist)))) | |
1606 | || NILP (alist)) | |
1607 | { | |
1608 | tem = Fassoc_string (string, alist, completion_ignore_case ? Qt : Qnil); | |
85cd4372 | 1609 | if NILP (tem) |
695deb18 SM |
1610 | return Qnil; |
1611 | } | |
1612 | else if (VECTORP (alist)) | |
5d2ca7ae | 1613 | { |
695deb18 SM |
1614 | /* Bypass intern-soft as that loses for nil. */ |
1615 | tem = oblookup (alist, | |
d5db4077 KR |
1616 | SDATA (string), |
1617 | SCHARS (string), | |
1618 | SBYTES (string)); | |
44472c88 | 1619 | if (!SYMBOLP (tem)) |
9404446f | 1620 | { |
695deb18 SM |
1621 | if (STRING_MULTIBYTE (string)) |
1622 | string = Fstring_make_unibyte (string); | |
9404446f | 1623 | else |
695deb18 | 1624 | string = Fstring_make_multibyte (string); |
9404446f RS |
1625 | |
1626 | tem = oblookup (Vminibuffer_completion_table, | |
d5db4077 KR |
1627 | SDATA (string), |
1628 | SCHARS (string), | |
1629 | SBYTES (string)); | |
9404446f RS |
1630 | if (!SYMBOLP (tem)) |
1631 | return Qnil; | |
1632 | } | |
5d2ca7ae | 1633 | } |
85cd4372 SM |
1634 | else if (HASH_TABLE_P (alist)) |
1635 | { | |
1636 | i = hash_lookup (XHASH_TABLE (alist), string, NULL); | |
1637 | if (i >= 0) | |
1638 | tem = HASH_KEY (XHASH_TABLE (alist), i); | |
1639 | else | |
1640 | return Qnil; | |
1641 | } | |
5d2ca7ae | 1642 | else |
695deb18 SM |
1643 | return call3 (alist, string, predicate, Qlambda); |
1644 | ||
1645 | /* Reject this element if it fails to match all the regexps. */ | |
1646 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1647 | regexps = XCDR (regexps)) | |
1648 | { | |
1649 | if (NILP (Fstring_match (XCAR (regexps), | |
1650 | SYMBOLP (tem) ? string : tem, | |
1651 | Qnil))) | |
1652 | return Qnil; | |
1653 | } | |
1654 | ||
1655 | /* Finally, check the predicate. */ | |
1656 | if (!NILP (predicate)) | |
85cd4372 SM |
1657 | return HASH_TABLE_P (alist) |
1658 | ? call2 (predicate, tem, HASH_VALUE (XHASH_TABLE (alist), i)) | |
1659 | : call1 (predicate, tem); | |
695deb18 SM |
1660 | else |
1661 | return Qt; | |
5d2ca7ae | 1662 | } |
f927c5ae JB |
1663 | |
1664 | /* returns: | |
1665 | * 0 no possible completion | |
1666 | * 1 was already an exact and unique completion | |
1667 | * 3 was already an exact completion | |
1668 | * 4 completed to an exact completion | |
1669 | * 5 some completion happened | |
1670 | * 6 no completion happened | |
1671 | */ | |
1672 | int | |
1673 | do_completion () | |
1674 | { | |
0c80756e | 1675 | Lisp_Object completion, string, tem; |
f927c5ae JB |
1676 | int completedp; |
1677 | Lisp_Object last; | |
1e00c2ff | 1678 | struct gcpro gcpro1, gcpro2; |
f927c5ae | 1679 | |
1011edb5 | 1680 | completion = Ftry_completion (minibuffer_completion_contents (), |
8e9968c6 | 1681 | Vminibuffer_completion_table, |
f927c5ae JB |
1682 | Vminibuffer_completion_predicate); |
1683 | last = last_exact_completion; | |
1684 | last_exact_completion = Qnil; | |
1685 | ||
4f9b95e5 KH |
1686 | GCPRO2 (completion, last); |
1687 | ||
56a98455 | 1688 | if (NILP (completion)) |
f927c5ae JB |
1689 | { |
1690 | bitch_at_user (); | |
1691 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1692 | UNGCPRO; |
f927c5ae JB |
1693 | return 0; |
1694 | } | |
1695 | ||
1696 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1697 | { |
1698 | UNGCPRO; | |
1699 | return 1; | |
1700 | } | |
f927c5ae | 1701 | |
1011edb5 | 1702 | string = minibuffer_completion_contents (); |
0c80756e MB |
1703 | |
1704 | /* COMPLETEDP should be true if some completion was done, which | |
1705 | doesn't include simply changing the case of the entered string. | |
1706 | However, for appearance, the string is rewritten if the case | |
1707 | changes. */ | |
1708 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qt); | |
01cce3e7 | 1709 | completedp = !EQ (tem, Qt); |
0c80756e | 1710 | |
7892a68b KH |
1711 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qnil); |
1712 | if (!EQ (tem, Qt)) | |
0c80756e | 1713 | /* Rewrite the user's input. */ |
f927c5ae | 1714 | { |
1011edb5 RS |
1715 | int prompt_end = XINT (Fminibuffer_prompt_end ()); |
1716 | /* Some completion happened */ | |
1717 | ||
1718 | if (! NILP (Vminibuffer_completing_file_name) | |
d5db4077 | 1719 | && SREF (completion, SBYTES (completion) - 1) == '/' |
1011edb5 RS |
1720 | && PT < ZV |
1721 | && FETCH_CHAR (PT_BYTE) == '/') | |
1722 | { | |
1723 | del_range (prompt_end, PT + 1); | |
1724 | } | |
1725 | else | |
1726 | del_range (prompt_end, PT); | |
1727 | ||
f927c5ae | 1728 | Finsert (1, &completion); |
6e69ab8c MB |
1729 | |
1730 | if (! completedp) | |
1731 | /* The case of the string changed, but that's all. We're not | |
1732 | sure whether this is a unique completion or not, so try again | |
1733 | using the real case (this shouldn't recurse again, because | |
1734 | the next time try-completion will return either `t' or the | |
1735 | exact string). */ | |
1736 | { | |
1737 | UNGCPRO; | |
1738 | return do_completion (); | |
1739 | } | |
f927c5ae JB |
1740 | } |
1741 | ||
1742 | /* It did find a match. Do we match some possibility exactly now? */ | |
695deb18 SM |
1743 | tem = Ftest_completion (Fminibuffer_contents (), |
1744 | Vminibuffer_completion_table, | |
1745 | Vminibuffer_completion_predicate); | |
56a98455 | 1746 | if (NILP (tem)) |
1e00c2ff KH |
1747 | { |
1748 | /* not an exact match */ | |
1749 | UNGCPRO; | |
f927c5ae JB |
1750 | if (completedp) |
1751 | return 5; | |
739cc391 | 1752 | else if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1753 | Fminibuffer_completion_help (); |
1754 | else | |
1755 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1756 | return 6; | |
1757 | } | |
1758 | else if (completedp) | |
1e00c2ff KH |
1759 | { |
1760 | UNGCPRO; | |
1761 | return 4; | |
1762 | } | |
f927c5ae JB |
1763 | /* If the last exact completion and this one were the same, |
1764 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1765 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1766 | last_exact_completion = completion; |
56a98455 | 1767 | if (!NILP (last)) |
f927c5ae | 1768 | { |
1011edb5 | 1769 | tem = minibuffer_completion_contents (); |
56a98455 | 1770 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1771 | Fminibuffer_completion_help (); |
1772 | } | |
1e00c2ff | 1773 | UNGCPRO; |
f927c5ae | 1774 | return 3; |
f927c5ae | 1775 | } |
1e00c2ff | 1776 | |
52b14ac0 JB |
1777 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1778 | ||
695deb18 SM |
1779 | DEFUN ("assoc-string", Fassoc_string, Sassoc_string, 2, 3, 0, |
1780 | doc: /* Like `assoc' but specifically for strings. | |
1781 | Unibyte strings are converted to multibyte for comparison. | |
1782 | And case is ignored if CASE-FOLD is non-nil. | |
1783 | As opposed to `assoc', it will also match an entry consisting of a single | |
1784 | string rather than a cons cell whose car is a string. */) | |
1785 | (key, list, case_fold) | |
52b14ac0 | 1786 | register Lisp_Object key; |
695deb18 | 1787 | Lisp_Object list, case_fold; |
52b14ac0 JB |
1788 | { |
1789 | register Lisp_Object tail; | |
1790 | ||
56a98455 | 1791 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1792 | { |
1793 | register Lisp_Object elt, tem, thiscar; | |
1794 | elt = Fcar (tail); | |
695deb18 | 1795 | thiscar = CONSP (elt) ? XCAR (elt) : elt; |
7510b296 | 1796 | if (!STRINGP (thiscar)) |
52b14ac0 | 1797 | continue; |
9404446f RS |
1798 | tem = Fcompare_strings (thiscar, make_number (0), Qnil, |
1799 | key, make_number (0), Qnil, | |
695deb18 | 1800 | case_fold); |
9404446f RS |
1801 | if (EQ (tem, Qt)) |
1802 | return elt; | |
52b14ac0 JB |
1803 | QUIT; |
1804 | } | |
1805 | return Qnil; | |
1806 | } | |
f927c5ae JB |
1807 | |
1808 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
af52c32d | 1809 | doc: /* Complete the minibuffer contents as far as possible. |
a1f17501 PJ |
1810 | Return nil if there is no valid completion, else t. |
1811 | If no characters can be completed, display a list of possible completions. | |
1812 | If you repeat this command after it displayed such a list, | |
af52c32d MB |
1813 | scroll the window of possible completions. */) |
1814 | () | |
f927c5ae | 1815 | { |
2cb6da5c RS |
1816 | register int i; |
1817 | Lisp_Object window, tem; | |
1818 | ||
df902b62 RS |
1819 | /* If the previous command was not this, |
1820 | mark the completion buffer obsolete. */ | |
1821 | if (! EQ (current_kboard->Vlast_command, Vthis_command)) | |
2cb6da5c RS |
1822 | Vminibuf_scroll_window = Qnil; |
1823 | ||
1824 | window = Vminibuf_scroll_window; | |
1825 | /* If there's a fresh completion window with a live buffer, | |
1826 | and this command is repeated, scroll that window. */ | |
1827 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1828 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1829 | { | |
1830 | struct buffer *obuf = current_buffer; | |
1831 | ||
1832 | Fset_buffer (XWINDOW (window)->buffer); | |
7d7c3861 | 1833 | tem = Fpos_visible_in_window_p (make_number (ZV), window, Qnil); |
2cb6da5c RS |
1834 | if (! NILP (tem)) |
1835 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1836 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1837 | else |
1838 | /* Else scroll down one screen. */ | |
1839 | Fscroll_other_window (Qnil); | |
1840 | ||
1841 | set_buffer_internal (obuf); | |
1842 | return Qnil; | |
1843 | } | |
1844 | ||
1845 | i = do_completion (); | |
f927c5ae JB |
1846 | switch (i) |
1847 | { | |
1848 | case 0: | |
1849 | return Qnil; | |
1850 | ||
1851 | case 1: | |
a1c5aa96 GM |
1852 | if (PT != ZV) |
1853 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1854 | temp_echo_area_glyphs (" [Sole completion]"); |
1855 | break; | |
1856 | ||
1857 | case 3: | |
9994cc69 GM |
1858 | if (PT != ZV) |
1859 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1860 | temp_echo_area_glyphs (" [Complete, but not unique]"); |
1861 | break; | |
1862 | } | |
1863 | ||
1864 | return Qt; | |
1865 | } | |
e4c97a67 RS |
1866 | \f |
1867 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1868 | ||
1869 | /* This one is called by internal_condition_case to do the real work. */ | |
1870 | ||
1871 | Lisp_Object | |
1872 | complete_and_exit_1 () | |
1873 | { | |
1874 | return make_number (do_completion ()); | |
1875 | } | |
1876 | ||
1877 | /* This one is called by internal_condition_case if an error happens. | |
1878 | Pretend the current value is an exact match. */ | |
1879 | ||
1880 | Lisp_Object | |
1881 | complete_and_exit_2 (ignore) | |
1882 | Lisp_Object ignore; | |
1883 | { | |
1884 | return make_number (1); | |
1885 | } | |
f927c5ae JB |
1886 | |
1887 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
94c7167b | 1888 | Sminibuffer_complete_and_exit, 0, 0, "", |
af52c32d | 1889 | doc: /* If the minibuffer contents is a valid completion then exit. |
a1f17501 | 1890 | Otherwise try to complete it. If completion leads to a valid completion, |
af52c32d MB |
1891 | a repetition of this command will exit. */) |
1892 | () | |
f927c5ae JB |
1893 | { |
1894 | register int i; | |
e4c97a67 | 1895 | Lisp_Object val; |
f927c5ae JB |
1896 | |
1897 | /* Allow user to specify null string */ | |
a346ec72 | 1898 | if (XINT (Fminibuffer_prompt_end ()) == ZV) |
f927c5ae JB |
1899 | goto exit; |
1900 | ||
695deb18 SM |
1901 | if (!NILP (Ftest_completion (Fminibuffer_contents (), |
1902 | Vminibuffer_completion_table, | |
1903 | Vminibuffer_completion_predicate))) | |
5d2ca7ae RS |
1904 | goto exit; |
1905 | ||
e4c97a67 | 1906 | /* Call do_completion, but ignore errors. */ |
8db426c7 | 1907 | SET_PT (ZV); |
e4c97a67 RS |
1908 | val = internal_condition_case (complete_and_exit_1, Qerror, |
1909 | complete_and_exit_2); | |
1910 | ||
1911 | i = XFASTINT (val); | |
f927c5ae JB |
1912 | switch (i) |
1913 | { | |
1914 | case 1: | |
1915 | case 3: | |
1916 | goto exit; | |
1917 | ||
1918 | case 4: | |
56a98455 | 1919 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1920 | { |
1921 | temp_echo_area_glyphs (" [Confirm]"); | |
1922 | return Qnil; | |
1923 | } | |
1924 | else | |
1925 | goto exit; | |
1926 | ||
1927 | default: | |
1928 | return Qnil; | |
1929 | } | |
1930 | exit: | |
6bbd7a29 | 1931 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
1932 | /* NOTREACHED */ |
1933 | } | |
1934 | ||
1935 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
94c7167b | 1936 | 0, 0, "", |
af52c32d | 1937 | doc: /* Complete the minibuffer contents at most a single word. |
a1f17501 PJ |
1938 | After one word is completed as much as possible, a space or hyphen |
1939 | is added, provided that matches some possible completion. | |
af52c32d MB |
1940 | Return nil if there is no valid completion, else t. */) |
1941 | () | |
f927c5ae | 1942 | { |
69f4ef20 | 1943 | Lisp_Object completion, tem, tem1; |
af2b7cd5 | 1944 | register int i, i_byte; |
27883fdd | 1945 | register const unsigned char *completion_string; |
d7be4211 | 1946 | struct gcpro gcpro1, gcpro2; |
1011edb5 | 1947 | int prompt_end_charpos = XINT (Fminibuffer_prompt_end ()); |
b278606c BF |
1948 | |
1949 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1950 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae | 1951 | |
1011edb5 | 1952 | completion = Ftry_completion (minibuffer_completion_contents (), |
f927c5ae JB |
1953 | Vminibuffer_completion_table, |
1954 | Vminibuffer_completion_predicate); | |
56a98455 | 1955 | if (NILP (completion)) |
f927c5ae JB |
1956 | { |
1957 | bitch_at_user (); | |
1958 | temp_echo_area_glyphs (" [No match]"); | |
1959 | return Qnil; | |
1960 | } | |
1961 | if (EQ (completion, Qt)) | |
1962 | return Qnil; | |
1963 | ||
b278606c | 1964 | #if 0 /* How the below code used to look, for reference. */ |
a346ec72 | 1965 | tem = Fminibuffer_contents (); |
d5db4077 KR |
1966 | b = SDATA (tem); |
1967 | i = ZV - 1 - SCHARS (completion); | |
1968 | p = SDATA (completion); | |
f927c5ae JB |
1969 | if (i > 0 || |
1970 | 0 <= scmp (b, p, ZV - 1)) | |
1971 | { | |
1972 | i = 1; | |
1973 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1974 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1975 | i++; | |
1976 | del_range (1, i + 1); | |
1977 | SET_PT (ZV); | |
1978 | } | |
1979 | #else /* Rewritten code */ | |
1980 | { | |
69f4ef20 | 1981 | int buffer_nchars, completion_nchars; |
f927c5ae | 1982 | |
b7826503 | 1983 | CHECK_STRING (completion); |
1011edb5 | 1984 | tem = minibuffer_completion_contents (); |
d7be4211 | 1985 | GCPRO2 (completion, tem); |
719b4a40 RS |
1986 | /* If reading a file name, |
1987 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
ccf330a6 | 1988 | if (! NILP (Vminibuffer_completing_file_name)) |
719b4a40 RS |
1989 | { |
1990 | Lisp_Object substituted; | |
1991 | substituted = Fsubstitute_in_file_name (tem); | |
1992 | if (! EQ (substituted, tem)) | |
1993 | { | |
1994 | tem = substituted; | |
1011edb5 RS |
1995 | del_range (prompt_end_charpos, PT); |
1996 | Finsert (1, &tem); | |
719b4a40 RS |
1997 | } |
1998 | } | |
d5db4077 KR |
1999 | buffer_nchars = SCHARS (tem); /* # chars in what we completed. */ |
2000 | completion_nchars = SCHARS (completion); | |
69f4ef20 RS |
2001 | i = buffer_nchars - completion_nchars; |
2002 | if (i > 0 | |
2003 | || | |
2004 | (tem1 = Fcompare_strings (tem, make_number (0), | |
2005 | make_number (buffer_nchars), | |
2006 | completion, make_number (0), | |
2007 | make_number (buffer_nchars), | |
2008 | completion_ignore_case ? Qt : Qnil), | |
2009 | ! EQ (tem1, Qt))) | |
f927c5ae | 2010 | { |
69f4ef20 RS |
2011 | int start_pos; |
2012 | ||
1011edb5 RS |
2013 | /* Make buffer (before point) contain the longest match |
2014 | of TEM's tail and COMPLETION's head. */ | |
69f4ef20 RS |
2015 | if (i <= 0) i = 1; |
2016 | start_pos= i; | |
2017 | buffer_nchars -= i; | |
669c6673 | 2018 | while (i > 0) |
69f4ef20 | 2019 | { |
669c6673 | 2020 | tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil, |
69f4ef20 RS |
2021 | completion, make_number (0), |
2022 | make_number (buffer_nchars), | |
2023 | completion_ignore_case ? Qt : Qnil); | |
2024 | start_pos++; | |
2025 | if (EQ (tem1, Qt)) | |
2026 | break; | |
2027 | i++; | |
669c6673 | 2028 | buffer_nchars--; |
69f4ef20 RS |
2029 | } |
2030 | del_range (1, i + 1); | |
f927c5ae | 2031 | } |
d7be4211 | 2032 | UNGCPRO; |
f927c5ae JB |
2033 | } |
2034 | #endif /* Rewritten code */ | |
9ab4a725 | 2035 | |
279cf52c | 2036 | { |
8e9968c6 | 2037 | int prompt_end_bytepos; |
279cf52c | 2038 | prompt_end_bytepos = CHAR_TO_BYTE (prompt_end_charpos); |
1011edb5 RS |
2039 | i = PT - prompt_end_charpos; |
2040 | i_byte = PT_BYTE - prompt_end_bytepos; | |
279cf52c | 2041 | } |
f927c5ae JB |
2042 | |
2043 | /* If completion finds next char not unique, | |
b278606c | 2044 | consider adding a space or a hyphen. */ |
d5db4077 | 2045 | if (i == SCHARS (completion)) |
f927c5ae | 2046 | { |
b278606c | 2047 | GCPRO1 (completion); |
1011edb5 RS |
2048 | tem = Ftry_completion (concat2 (minibuffer_completion_contents (), |
2049 | build_string (" ")), | |
f927c5ae JB |
2050 | Vminibuffer_completion_table, |
2051 | Vminibuffer_completion_predicate); | |
b278606c BF |
2052 | UNGCPRO; |
2053 | ||
7510b296 | 2054 | if (STRINGP (tem)) |
f927c5ae JB |
2055 | completion = tem; |
2056 | else | |
2057 | { | |
b278606c BF |
2058 | GCPRO1 (completion); |
2059 | tem = | |
1011edb5 RS |
2060 | Ftry_completion (concat2 (minibuffer_completion_contents (), |
2061 | build_string ("-")), | |
b278606c BF |
2062 | Vminibuffer_completion_table, |
2063 | Vminibuffer_completion_predicate); | |
2064 | UNGCPRO; | |
2065 | ||
7510b296 | 2066 | if (STRINGP (tem)) |
f927c5ae JB |
2067 | completion = tem; |
2068 | } | |
9ab4a725 | 2069 | } |
f927c5ae JB |
2070 | |
2071 | /* Now find first word-break in the stuff found by completion. | |
2072 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
2073 | { |
2074 | int len, c; | |
d5db4077 KR |
2075 | int bytes = SBYTES (completion); |
2076 | completion_string = SDATA (completion); | |
2077 | for (; i_byte < SBYTES (completion); i_byte += len, i++) | |
d50a3d2a | 2078 | { |
af2b7cd5 | 2079 | c = STRING_CHAR_AND_LENGTH (completion_string + i_byte, |
54643b2c | 2080 | bytes - i_byte, |
d50a3d2a KH |
2081 | len); |
2082 | if (SYNTAX (c) != Sword) | |
2083 | { | |
af2b7cd5 RS |
2084 | i_byte += len; |
2085 | i++; | |
d50a3d2a KH |
2086 | break; |
2087 | } | |
2088 | } | |
2089 | } | |
f927c5ae JB |
2090 | |
2091 | /* If got no characters, print help for user. */ | |
2092 | ||
1011edb5 | 2093 | if (i == PT - prompt_end_charpos) |
f927c5ae | 2094 | { |
739cc391 | 2095 | if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
2096 | Fminibuffer_completion_help (); |
2097 | return Qnil; | |
2098 | } | |
2099 | ||
2100 | /* Otherwise insert in minibuffer the chars we got */ | |
2101 | ||
1011edb5 | 2102 | if (! NILP (Vminibuffer_completing_file_name) |
d5db4077 | 2103 | && SREF (completion, SBYTES (completion) - 1) == '/' |
1011edb5 RS |
2104 | && PT < ZV |
2105 | && FETCH_CHAR (PT_BYTE) == '/') | |
2106 | { | |
2107 | del_range (prompt_end_charpos, PT + 1); | |
2108 | } | |
2109 | else | |
2110 | del_range (prompt_end_charpos, PT); | |
2111 | ||
af2b7cd5 | 2112 | insert_from_string (completion, 0, 0, i, i_byte, 1); |
f927c5ae JB |
2113 | return Qt; |
2114 | } | |
2115 | \f | |
2116 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
2117 | 1, 1, 0, | |
af52c32d | 2118 | doc: /* Display the list of completions, COMPLETIONS, using `standard-output'. |
a1f17501 PJ |
2119 | Each element may be just a symbol or string |
2120 | or may be a list of two strings to be printed as if concatenated. | |
2121 | `standard-output' must be a buffer. | |
2122 | The actual completion alternatives, as inserted, are given `mouse-face' | |
2123 | properties of `highlight'. | |
2124 | At the end, this runs the normal hook `completion-setup-hook'. | |
af52c32d MB |
2125 | It can find the completion buffer in `standard-output'. */) |
2126 | (completions) | |
f927c5ae JB |
2127 | Lisp_Object completions; |
2128 | { | |
dae36123 | 2129 | Lisp_Object tail, elt; |
f927c5ae | 2130 | register int i; |
2dc2b736 | 2131 | int column = 0; |
dae36123 | 2132 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 2133 | struct buffer *old = current_buffer; |
681f5af4 | 2134 | int first = 1; |
486cc7fb RS |
2135 | |
2136 | /* Note that (when it matters) every variable | |
dae36123 RS |
2137 | points to a non-string that is pointed to by COMPLETIONS, |
2138 | except for ELT. ELT can be pointing to a string | |
2139 | when terpri or Findent_to calls a change hook. */ | |
2140 | elt = Qnil; | |
2141 | GCPRO2 (completions, elt); | |
486cc7fb | 2142 | |
7510b296 | 2143 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 2144 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 2145 | |
56a98455 | 2146 | if (NILP (completions)) |
cfc736bf RS |
2147 | write_string ("There are no possible completions of what you have typed.", |
2148 | -1); | |
f927c5ae JB |
2149 | else |
2150 | { | |
2dc2b736 | 2151 | write_string ("Possible completions are:", -1); |
56a98455 | 2152 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 2153 | { |
ec067ec7 | 2154 | Lisp_Object tem, string; |
681f5af4 | 2155 | int length; |
47d7d104 | 2156 | Lisp_Object startpos, endpos; |
681f5af4 | 2157 | |
6bbd7a29 GM |
2158 | startpos = Qnil; |
2159 | ||
681f5af4 RS |
2160 | elt = Fcar (tail); |
2161 | /* Compute the length of this element. */ | |
2162 | if (CONSP (elt)) | |
2163 | { | |
49db96ce | 2164 | tem = XCAR (elt); |
b7826503 | 2165 | CHECK_STRING (tem); |
d5db4077 | 2166 | length = SCHARS (tem); |
681f5af4 | 2167 | |
49db96ce | 2168 | tem = Fcar (XCDR (elt)); |
b7826503 | 2169 | CHECK_STRING (tem); |
d5db4077 | 2170 | length += SCHARS (tem); |
681f5af4 RS |
2171 | } |
2172 | else | |
2173 | { | |
b7826503 | 2174 | CHECK_STRING (elt); |
d5db4077 | 2175 | length = SCHARS (elt); |
681f5af4 RS |
2176 | } |
2177 | ||
2178 | /* This does a bad job for narrower than usual windows. | |
2179 | Sadly, the window it will appear in is not known | |
2180 | until after the text has been made. */ | |
2181 | ||
47d7d104 RS |
2182 | if (BUFFERP (Vstandard_output)) |
2183 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2184 | ||
681f5af4 RS |
2185 | /* If the previous completion was very wide, |
2186 | or we have two on this line already, | |
2187 | don't put another on the same line. */ | |
2188 | if (column > 33 || first | |
2189 | /* If this is really wide, don't put it second on a line. */ | |
13c67cc6 | 2190 | || (column > 0 && length > 45)) |
681f5af4 RS |
2191 | { |
2192 | Fterpri (Qnil); | |
2193 | column = 0; | |
2194 | } | |
2195 | /* Otherwise advance to column 35. */ | |
2196 | else | |
2dc2b736 | 2197 | { |
7510b296 | 2198 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
2199 | { |
2200 | tem = Findent_to (make_number (35), make_number (2)); | |
9ab4a725 | 2201 | |
681f5af4 RS |
2202 | column = XINT (tem); |
2203 | } | |
2dc2b736 RS |
2204 | else |
2205 | { | |
2206 | do | |
2207 | { | |
2208 | write_string (" ", -1); | |
2209 | column++; | |
2210 | } | |
2211 | while (column < 35); | |
2212 | } | |
2213 | } | |
681f5af4 | 2214 | |
47d7d104 RS |
2215 | if (BUFFERP (Vstandard_output)) |
2216 | { | |
2217 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2218 | Fset_text_properties (startpos, endpos, | |
2219 | Qnil, Vstandard_output); | |
2220 | } | |
2221 | ||
ec067ec7 | 2222 | /* Output this element. |
9404446f | 2223 | If necessary, convert it to unibyte or to multibyte first. */ |
f927c5ae | 2224 | if (CONSP (elt)) |
ec067ec7 | 2225 | string = Fcar (elt); |
f927c5ae | 2226 | else |
ec067ec7 RS |
2227 | string = elt; |
2228 | if (NILP (current_buffer->enable_multibyte_characters) | |
2229 | && STRING_MULTIBYTE (string)) | |
2230 | string = Fstring_make_unibyte (string); | |
9404446f RS |
2231 | else if (!NILP (current_buffer->enable_multibyte_characters) |
2232 | && !STRING_MULTIBYTE (string)) | |
2233 | string = Fstring_make_multibyte (string); | |
5744fa7c RS |
2234 | |
2235 | if (BUFFERP (Vstandard_output)) | |
2236 | { | |
4b37311e | 2237 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c RS |
2238 | |
2239 | Fprinc (string, Qnil); | |
2240 | ||
4b37311e | 2241 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c | 2242 | |
4b37311e | 2243 | Fput_text_property (startpos, endpos, |
5744fa7c RS |
2244 | Qmouse_face, intern ("highlight"), |
2245 | Vstandard_output); | |
2246 | } | |
2247 | else | |
2248 | { | |
2249 | Fprinc (string, Qnil); | |
2250 | } | |
ec067ec7 RS |
2251 | |
2252 | /* Output the annotation for this element. */ | |
2253 | if (CONSP (elt)) | |
4b37311e RS |
2254 | { |
2255 | if (BUFFERP (Vstandard_output)) | |
2256 | { | |
2257 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2258 | ||
2259 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2260 | ||
2261 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2262 | ||
2263 | Fset_text_properties (startpos, endpos, Qnil, | |
2264 | Vstandard_output); | |
2265 | } | |
2266 | else | |
2267 | { | |
2268 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2269 | } | |
2270 | } | |
2271 | ||
681f5af4 | 2272 | |
ec067ec7 | 2273 | /* Update COLUMN for what we have output. */ |
681f5af4 RS |
2274 | column += length; |
2275 | ||
2276 | /* If output is to a buffer, recompute COLUMN in a way | |
2277 | that takes account of character widths. */ | |
2278 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 2279 | { |
681f5af4 RS |
2280 | tem = Fcurrent_column (); |
2281 | column = XINT (tem); | |
2dc2b736 | 2282 | } |
681f5af4 RS |
2283 | |
2284 | first = 0; | |
f927c5ae JB |
2285 | } |
2286 | } | |
2dc2b736 | 2287 | |
486cc7fb RS |
2288 | UNGCPRO; |
2289 | ||
7510b296 | 2290 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
2291 | set_buffer_internal (old); |
2292 | ||
cfc736bf RS |
2293 | if (!NILP (Vrun_hooks)) |
2294 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
2295 | ||
f927c5ae JB |
2296 | return Qnil; |
2297 | } | |
2298 | ||
2299 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
94c7167b | 2300 | 0, 0, "", |
af52c32d MB |
2301 | doc: /* Display a list of possible completions of the current minibuffer contents. */) |
2302 | () | |
f927c5ae JB |
2303 | { |
2304 | Lisp_Object completions; | |
2305 | ||
2306 | message ("Making completion list..."); | |
1011edb5 | 2307 | completions = Fall_completions (minibuffer_completion_contents (), |
f927c5ae | 2308 | Vminibuffer_completion_table, |
89a255dc RS |
2309 | Vminibuffer_completion_predicate, |
2310 | Qt); | |
39e98b38 | 2311 | clear_message (1, 0); |
f927c5ae | 2312 | |
56a98455 | 2313 | if (NILP (completions)) |
f927c5ae JB |
2314 | { |
2315 | bitch_at_user (); | |
2316 | temp_echo_area_glyphs (" [No completions]"); | |
2317 | } | |
2318 | else | |
2319 | internal_with_output_to_temp_buffer ("*Completions*", | |
2320 | Fdisplay_completion_list, | |
2321 | Fsort (completions, Qstring_lessp)); | |
2322 | return Qnil; | |
2323 | } | |
2324 | \f | |
2325 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
af52c32d MB |
2326 | doc: /* Terminate minibuffer input. */) |
2327 | () | |
f927c5ae | 2328 | { |
7510b296 | 2329 | if (INTEGERP (last_command_char)) |
dab3ab3c | 2330 | internal_self_insert (XINT (last_command_char), 0); |
f927c5ae JB |
2331 | else |
2332 | bitch_at_user (); | |
2333 | ||
6bbd7a29 | 2334 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2335 | } |
2336 | ||
2337 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
af52c32d MB |
2338 | doc: /* Terminate this minibuffer argument. */) |
2339 | () | |
f927c5ae | 2340 | { |
6bbd7a29 | 2341 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2342 | } |
2343 | ||
2344 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
af52c32d MB |
2345 | doc: /* Return current depth of activations of minibuffer, a nonnegative integer. */) |
2346 | () | |
f927c5ae JB |
2347 | { |
2348 | return make_number (minibuf_level); | |
2349 | } | |
2350 | ||
37e9a934 | 2351 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
af52c32d MB |
2352 | doc: /* Return the prompt string of the currently-active minibuffer. |
2353 | If no minibuffer is active, return nil. */) | |
2354 | () | |
37e9a934 | 2355 | { |
4d04c1f1 | 2356 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
2357 | } |
2358 | ||
f927c5ae | 2359 | \f |
2d955a50 RS |
2360 | /* Temporarily display the string M at the end of the current |
2361 | minibuffer contents. This is used to display things like | |
2362 | "[No Match]" when the user requests a completion for a prefix | |
2363 | that has no possible completions, and other quick, unobtrusive | |
2364 | messages. */ | |
2365 | ||
9d815fd9 | 2366 | void |
2d955a50 | 2367 | temp_echo_area_glyphs (m) |
27883fdd | 2368 | const char *m; |
2d955a50 RS |
2369 | { |
2370 | int osize = ZV; | |
a9c26562 | 2371 | int osize_byte = ZV_BYTE; |
2d955a50 | 2372 | int opoint = PT; |
a9c26562 | 2373 | int opoint_byte = PT_BYTE; |
2d955a50 RS |
2374 | Lisp_Object oinhibit; |
2375 | oinhibit = Vinhibit_quit; | |
2376 | ||
2377 | /* Clear out any old echo-area message to make way for our new thing. */ | |
2378 | message (0); | |
2379 | ||
a9c26562 | 2380 | SET_PT_BOTH (osize, osize_byte); |
2d955a50 | 2381 | insert_string (m); |
a9c26562 | 2382 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2383 | Vinhibit_quit = Qt; |
2384 | Fsit_for (make_number (2), Qnil, Qnil); | |
bc69581b | 2385 | del_range_both (osize, osize_byte, ZV, ZV_BYTE, 1); |
a9c26562 | 2386 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2387 | if (!NILP (Vquit_flag)) |
2388 | { | |
2389 | Vquit_flag = Qnil; | |
2390 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
2391 | } | |
2392 | Vinhibit_quit = oinhibit; | |
2393 | } | |
2394 | ||
2395 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
94c7167b | 2396 | 1, 1, 0, |
af52c32d | 2397 | doc: /* Temporarily display STRING at the end of the minibuffer. |
a1f17501 | 2398 | The text is displayed for two seconds, |
af52c32d MB |
2399 | or until the next input event arrives, whichever comes first. */) |
2400 | (string) | |
2d955a50 RS |
2401 | Lisp_Object string; |
2402 | { | |
d5db4077 | 2403 | temp_echo_area_glyphs (SDATA (string)); |
2d955a50 RS |
2404 | return Qnil; |
2405 | } | |
2406 | \f | |
9d815fd9 | 2407 | void |
f927c5ae JB |
2408 | init_minibuf_once () |
2409 | { | |
2410 | Vminibuffer_list = Qnil; | |
2411 | staticpro (&Vminibuffer_list); | |
2412 | } | |
2413 | ||
9d815fd9 | 2414 | void |
f927c5ae JB |
2415 | syms_of_minibuf () |
2416 | { | |
2417 | minibuf_level = 0; | |
4d04c1f1 KH |
2418 | minibuf_prompt = Qnil; |
2419 | staticpro (&minibuf_prompt); | |
2420 | ||
2421 | minibuf_save_list = Qnil; | |
2422 | staticpro (&minibuf_save_list); | |
f927c5ae | 2423 | |
719b4a40 RS |
2424 | Qread_file_name_internal = intern ("read-file-name-internal"); |
2425 | staticpro (&Qread_file_name_internal); | |
2426 | ||
e5d4686b RS |
2427 | Qminibuffer_default = intern ("minibuffer-default"); |
2428 | staticpro (&Qminibuffer_default); | |
2429 | Fset (Qminibuffer_default, Qnil); | |
2430 | ||
f927c5ae JB |
2431 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
2432 | staticpro (&Qminibuffer_completion_table); | |
2433 | ||
2434 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
2435 | staticpro (&Qminibuffer_completion_confirm); | |
2436 | ||
2437 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
2438 | staticpro (&Qminibuffer_completion_predicate); | |
2439 | ||
1e00c2ff KH |
2440 | staticpro (&last_exact_completion); |
2441 | last_exact_completion = Qnil; | |
2442 | ||
f927c5ae JB |
2443 | staticpro (&last_minibuf_string); |
2444 | last_minibuf_string = Qnil; | |
2445 | ||
2446 | Quser_variable_p = intern ("user-variable-p"); | |
2447 | staticpro (&Quser_variable_p); | |
2448 | ||
770970cb RS |
2449 | Qminibuffer_history = intern ("minibuffer-history"); |
2450 | staticpro (&Qminibuffer_history); | |
f927c5ae | 2451 | |
406e55df RS |
2452 | Qbuffer_name_history = intern ("buffer-name-history"); |
2453 | staticpro (&Qbuffer_name_history); | |
33d0a17f | 2454 | Fset (Qbuffer_name_history, Qnil); |
406e55df | 2455 | |
5c781212 RS |
2456 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
2457 | staticpro (&Qminibuffer_setup_hook); | |
2458 | ||
177aecf9 KH |
2459 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
2460 | staticpro (&Qminibuffer_exit_hook); | |
2461 | ||
77aa8edf RS |
2462 | Qhistory_length = intern ("history-length"); |
2463 | staticpro (&Qhistory_length); | |
2464 | ||
cee54539 KH |
2465 | Qcurrent_input_method = intern ("current-input-method"); |
2466 | staticpro (&Qcurrent_input_method); | |
2467 | ||
2468 | Qactivate_input_method = intern ("activate-input-method"); | |
2469 | staticpro (&Qactivate_input_method); | |
2470 | ||
af52c32d MB |
2471 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2472 | doc: /* If this is non-nil, `read-buffer' does its work by calling this function. */); | |
eebbfb01 KH |
2473 | Vread_buffer_function = Qnil; |
2474 | ||
af52c32d MB |
2475 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2476 | doc: /* Normal hook run just after entry to minibuffer. */); | |
5c781212 RS |
2477 | Vminibuffer_setup_hook = Qnil; |
2478 | ||
af52c32d MB |
2479 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2480 | doc: /* Normal hook run just after exit from minibuffer. */); | |
177aecf9 KH |
2481 | Vminibuffer_exit_hook = Qnil; |
2482 | ||
af52c32d MB |
2483 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2484 | doc: /* *Maximum length for history lists before truncation takes place. | |
a1f17501 PJ |
2485 | A number means that length; t means infinite. Truncation takes place |
2486 | just after a new element is inserted. Setting the history-length | |
2487 | property of a history variable overrides this default. */); | |
77aa8edf RS |
2488 | XSETFASTINT (Vhistory_length, 30); |
2489 | ||
af52c32d MB |
2490 | DEFVAR_LISP ("completion-auto-help", &Vcompletion_auto_help, |
2491 | doc: /* *Non-nil means automatically provide help for invalid completion input. */); | |
739cc391 | 2492 | Vcompletion_auto_help = Qt; |
f927c5ae | 2493 | |
af52c32d MB |
2494 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, |
2495 | doc: /* Non-nil means don't consider case significant in completion. */); | |
f927c5ae JB |
2496 | completion_ignore_case = 0; |
2497 | ||
af52c32d MB |
2498 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, |
2499 | doc: /* *Non-nil means to allow minibuffer commands while in the minibuffer. | |
a1f17501 | 2500 | This variable makes a difference whenever the minibuffer window is active. */); |
f927c5ae JB |
2501 | enable_recursive_minibuffers = 0; |
2502 | ||
af52c32d MB |
2503 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, |
2504 | doc: /* Alist or obarray used for completion in the minibuffer. | |
a1f17501 PJ |
2505 | This becomes the ALIST argument to `try-completion' and `all-completion'. |
2506 | ||
2507 | The value may alternatively be a function, which is given three arguments: | |
2508 | STRING, the current buffer contents; | |
2509 | PREDICATE, the predicate for filtering possible matches; | |
2510 | CODE, which says what kind of things to do. | |
2511 | CODE can be nil, t or `lambda'. | |
2512 | nil means to return the best completion of STRING, or nil if there is none. | |
2513 | t means to return a list of all possible completions of STRING. | |
2514 | `lambda' means to return t if STRING is a valid completion as it stands. */); | |
f927c5ae JB |
2515 | Vminibuffer_completion_table = Qnil; |
2516 | ||
af52c32d MB |
2517 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, |
2518 | doc: /* Within call to `completing-read', this holds the PREDICATE argument. */); | |
f927c5ae JB |
2519 | Vminibuffer_completion_predicate = Qnil; |
2520 | ||
af52c32d | 2521 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, |
fd771ceb | 2522 | doc: /* Non-nil means to demand confirmation of completion before exiting minibuffer. */); |
f927c5ae JB |
2523 | Vminibuffer_completion_confirm = Qnil; |
2524 | ||
ccf330a6 | 2525 | DEFVAR_LISP ("minibuffer-completing-file-name", |
af52c32d MB |
2526 | &Vminibuffer_completing_file_name, |
2527 | doc: /* Non-nil means completing file names. */); | |
ccf330a6 RS |
2528 | Vminibuffer_completing_file_name = Qnil; |
2529 | ||
af52c32d MB |
2530 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, |
2531 | doc: /* Value that `help-form' takes on inside the minibuffer. */); | |
f927c5ae JB |
2532 | Vminibuffer_help_form = Qnil; |
2533 | ||
af52c32d MB |
2534 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2535 | doc: /* History list symbol to add minibuffer values to. | |
a1f17501 PJ |
2536 | Each string of minibuffer input, as it appears on exit from the minibuffer, |
2537 | is added with | |
2538 | (set minibuffer-history-variable | |
2539 | (cons STRING (symbol-value minibuffer-history-variable))) */); | |
5a866662 | 2540 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb | 2541 | |
af52c32d MB |
2542 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, |
2543 | doc: /* Current position of redoing in the history list. */); | |
770970cb RS |
2544 | Vminibuffer_history_position = Qnil; |
2545 | ||
af52c32d MB |
2546 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
2547 | doc: /* *Non-nil means entering the minibuffer raises the minibuffer's frame. | |
a1f17501 | 2548 | Some uses of the echo area also raise that frame (since they use it too). */); |
6a9ee000 RS |
2549 | minibuffer_auto_raise = 0; |
2550 | ||
af52c32d MB |
2551 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2552 | doc: /* List of regexps that should restrict possible completions. */); | |
42006772 RS |
2553 | Vcompletion_regexp_list = Qnil; |
2554 | ||
c3421833 | 2555 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
af52c32d MB |
2556 | &minibuffer_allow_text_properties, |
2557 | doc: /* Non-nil means `read-from-minibuffer' should not discard text properties. | |
a1f17501 PJ |
2558 | This also affects `read-string', but it does not affect `read-minibuffer', |
2559 | `read-no-blanks-input', or any of the functions that do minibuffer input | |
2560 | with completion; they always discard text properties. */); | |
c3421833 RS |
2561 | minibuffer_allow_text_properties = 0; |
2562 | ||
af52c32d MB |
2563 | DEFVAR_LISP ("minibuffer-prompt-properties", &Vminibuffer_prompt_properties, |
2564 | doc: /* Text properties that are added to minibuffer prompts. | |
a1f17501 PJ |
2565 | These are in addition to the basic `field' property, and stickiness |
2566 | properties. */); | |
cc64f5c9 MB |
2567 | /* We use `intern' here instead of Qread_only to avoid |
2568 | initialization-order problems. */ | |
2569 | Vminibuffer_prompt_properties | |
2570 | = Fcons (intern ("read-only"), Fcons (Qt, Qnil)); | |
2571 | ||
68313ed8 | 2572 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2573 | defsubr (&Sread_from_minibuffer); |
2574 | defsubr (&Seval_minibuffer); | |
2575 | defsubr (&Sread_minibuffer); | |
2576 | defsubr (&Sread_string); | |
2577 | defsubr (&Sread_command); | |
2578 | defsubr (&Sread_variable); | |
2579 | defsubr (&Sread_buffer); | |
2580 | defsubr (&Sread_no_blanks_input); | |
2581 | defsubr (&Sminibuffer_depth); | |
37e9a934 | 2582 | defsubr (&Sminibuffer_prompt); |
f927c5ae | 2583 | |
a346ec72 MB |
2584 | defsubr (&Sminibuffer_prompt_end); |
2585 | defsubr (&Sminibuffer_contents); | |
2586 | defsubr (&Sminibuffer_contents_no_properties); | |
2587 | defsubr (&Sdelete_minibuffer_contents); | |
2588 | ||
f927c5ae JB |
2589 | defsubr (&Stry_completion); |
2590 | defsubr (&Sall_completions); | |
695deb18 SM |
2591 | defsubr (&Stest_completion); |
2592 | defsubr (&Sassoc_string); | |
f927c5ae JB |
2593 | defsubr (&Scompleting_read); |
2594 | defsubr (&Sminibuffer_complete); | |
2595 | defsubr (&Sminibuffer_complete_word); | |
2596 | defsubr (&Sminibuffer_complete_and_exit); | |
2597 | defsubr (&Sdisplay_completion_list); | |
2598 | defsubr (&Sminibuffer_completion_help); | |
2599 | ||
2600 | defsubr (&Sself_insert_and_exit); | |
2601 | defsubr (&Sexit_minibuffer); | |
2602 | ||
2d955a50 | 2603 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2604 | } |
2605 | ||
9d815fd9 | 2606 | void |
f927c5ae JB |
2607 | keys_of_minibuf () |
2608 | { | |
2609 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2610 | "abort-recursive-edit"); | |
2611 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2612 | "exit-minibuffer"); | |
2613 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2614 | "exit-minibuffer"); | |
2615 | ||
f927c5ae JB |
2616 | initial_define_key (Vminibuffer_local_ns_map, ' ', |
2617 | "exit-minibuffer"); | |
2618 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2619 | "exit-minibuffer"); | |
2620 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2621 | "self-insert-and-exit"); | |
2622 | ||
f927c5ae JB |
2623 | initial_define_key (Vminibuffer_local_completion_map, '\t', |
2624 | "minibuffer-complete"); | |
2625 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2626 | "minibuffer-complete-word"); | |
2627 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2628 | "minibuffer-completion-help"); | |
2629 | ||
f927c5ae JB |
2630 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), |
2631 | "minibuffer-complete-and-exit"); | |
2632 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2633 | "minibuffer-complete-and-exit"); | |
f927c5ae | 2634 | } |