Commit | Line | Data |
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f927c5ae | 1 | /* Minibuffer input and completion. |
599ca9c2 SM |
2 | Copyright (C) 1985,86,93,94,95,96,97,98,99,2000,01,03 |
3 | 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)) | |
cbbfe056 | 162 | Fset_window_buffer (sf->minibuffer_window, buffer, Qnil); |
a4aafc54 | 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. |
dea7e2ba | 192 | This affects 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 |
873ef78e | 321 | DEFUN ("minibufferp", Fminibufferp, |
6d1b1d7b JPW |
322 | Sminibufferp, 0, 1, 0, |
323 | doc: /* Return t if BUFFER is a minibuffer. | |
324 | No argument or nil as argument means use current buffer as BUFFER.*/) | |
325 | (buffer) | |
326 | Lisp_Object buffer; | |
873ef78e RS |
327 | { |
328 | Lisp_Object tem; | |
329 | ||
6d1b1d7b JPW |
330 | if (NILP (buffer)) |
331 | buffer = Fcurrent_buffer (); | |
332 | else if (STRINGP (buffer)) | |
333 | buffer = Fget_buffer (buffer); | |
334 | else | |
335 | CHECK_BUFFER (buffer); | |
336 | ||
337 | tem = Fmemq (buffer, Vminibuffer_list); | |
873ef78e RS |
338 | return ! NILP (tem) ? Qt : Qnil; |
339 | } | |
340 | ||
a346ec72 MB |
341 | DEFUN ("minibuffer-prompt-end", Fminibuffer_prompt_end, |
342 | Sminibuffer_prompt_end, 0, 0, 0, | |
af52c32d MB |
343 | doc: /* Return the buffer position of the end of the minibuffer prompt. |
344 | Return (point-min) if current buffer is not a mini-buffer. */) | |
345 | () | |
a346ec72 MB |
346 | { |
347 | /* This function is written to be most efficient when there's a prompt. */ | |
873ef78e RS |
348 | Lisp_Object beg, end, tem; |
349 | beg = make_number (BEGV); | |
350 | ||
351 | tem = Fmemq (Fcurrent_buffer (), Vminibuffer_list); | |
352 | if (NILP (tem)) | |
353 | return beg; | |
354 | ||
355 | end = Ffield_end (beg, Qnil, Qnil); | |
9ab4a725 | 356 | |
a346ec72 | 357 | if (XINT (end) == ZV && NILP (Fget_char_property (beg, Qfield, Qnil))) |
b056f36d | 358 | return beg; |
a346ec72 MB |
359 | else |
360 | return end; | |
361 | } | |
362 | ||
363 | DEFUN ("minibuffer-contents", Fminibuffer_contents, | |
364 | Sminibuffer_contents, 0, 0, 0, | |
029a305c | 365 | doc: /* Return the user input in a minibuffer as a string. |
af52c32d MB |
366 | The current buffer must be a minibuffer. */) |
367 | () | |
a346ec72 MB |
368 | { |
369 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
370 | return make_buffer_string (prompt_end, ZV, 1); | |
371 | } | |
372 | ||
373 | DEFUN ("minibuffer-contents-no-properties", Fminibuffer_contents_no_properties, | |
374 | Sminibuffer_contents_no_properties, 0, 0, 0, | |
029a305c | 375 | doc: /* Return the user input in a minibuffer as a string, without text-properties. |
af52c32d MB |
376 | The current buffer must be a minibuffer. */) |
377 | () | |
a346ec72 MB |
378 | { |
379 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
380 | return make_buffer_string (prompt_end, ZV, 0); | |
381 | } | |
382 | ||
383 | DEFUN ("delete-minibuffer-contents", Fdelete_minibuffer_contents, | |
384 | Sdelete_minibuffer_contents, 0, 0, 0, | |
af52c32d MB |
385 | doc: /* Delete all user input in a minibuffer. |
386 | The current buffer must be a minibuffer. */) | |
387 | () | |
a346ec72 MB |
388 | { |
389 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
390 | if (prompt_end < ZV) | |
391 | del_range (prompt_end, ZV); | |
392 | return Qnil; | |
393 | } | |
394 | ||
1011edb5 RS |
395 | /* Get the text in the minibuffer before point. |
396 | That is what completion commands operate on. */ | |
a346ec72 | 397 | |
5b62b301 | 398 | Lisp_Object |
1011edb5 RS |
399 | minibuffer_completion_contents () |
400 | { | |
401 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
3ea137e9 RS |
402 | if (PT < prompt_end) |
403 | error ("Cannot do completion in the prompt"); | |
1011edb5 RS |
404 | return make_buffer_string (prompt_end, PT, 1); |
405 | } | |
406 | \f | |
adb0708c LT |
407 | /* Read from the minibuffer using keymap MAP and initial contents INITIAL, |
408 | putting point minus BACKUP_N bytes from the end of INITIAL, | |
770970cb | 409 | prompting with PROMPT (a string), using history list HISTVAR |
adb0708c LT |
410 | with initial position HISTPOS. INITIAL should be a string or a |
411 | cons of a string and an integer. BACKUP_N should be <= 0, or | |
412 | Qnil, which is equivalent to 0. If INITIAL is a cons, BACKUP_N is | |
413 | ignored and replaced with an integer that puts point N characters | |
414 | from the beginning of INITIAL, where N is the CDR of INITIAL, or at | |
415 | the beginning of INITIAL if N <= 0. | |
770970cb RS |
416 | |
417 | Normally return the result as a string (the text that was read), | |
3ab14176 | 418 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
419 | If HISTVAR is given, save the value read on that history only if it doesn't |
420 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 421 | the list as the string that was read. |
770970cb | 422 | |
4f9f637a | 423 | DEFALT specifies the default value for the sake of history commands. |
c3421833 | 424 | |
cee54539 KH |
425 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
426 | ||
adb0708c | 427 | if INHERIT_INPUT_METHOD is nonzero, the minibuffer inherits the |
cee54539 | 428 | current input method. */ |
e5d4686b RS |
429 | |
430 | static Lisp_Object | |
431 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 432 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
433 | Lisp_Object map; |
434 | Lisp_Object initial; | |
435 | Lisp_Object prompt; | |
5061d9c3 | 436 | Lisp_Object backup_n; |
f927c5ae | 437 | int expflag; |
770970cb RS |
438 | Lisp_Object histvar; |
439 | Lisp_Object histpos; | |
e5d4686b | 440 | Lisp_Object defalt; |
af2b7cd5 | 441 | int allow_props; |
cee54539 | 442 | int inherit_input_method; |
f927c5ae | 443 | { |
00a34088 | 444 | Lisp_Object val; |
aed13378 | 445 | int count = SPECPDL_INDEX (); |
cee54539 KH |
446 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
447 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 448 | Lisp_Object enable_multibyte; |
adb0708c | 449 | int pos = INTEGERP (backup_n) ? XINT (backup_n) : 0; |
4f9f637a RS |
450 | |
451 | /* String to add to the history. */ | |
452 | Lisp_Object histstring; | |
453 | ||
04012254 | 454 | extern Lisp_Object Qfront_sticky; |
fbd1209a | 455 | extern Lisp_Object Qrear_nonsticky; |
00a34088 | 456 | |
e5d4686b RS |
457 | specbind (Qminibuffer_default, defalt); |
458 | ||
08f7d623 | 459 | single_kboard_state (); |
e5baa1a7 | 460 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
461 | if (display_hourglass_p) |
462 | cancel_hourglass (); | |
e5baa1a7 | 463 | #endif |
718d3251 | 464 | |
adb0708c LT |
465 | if (!NILP (initial)) |
466 | { | |
467 | if (CONSP (initial)) | |
468 | { | |
469 | backup_n = Fcdr (initial); | |
470 | initial = Fcar (initial); | |
471 | CHECK_STRING (initial); | |
472 | if (!NILP (backup_n)) | |
473 | { | |
474 | CHECK_NUMBER (backup_n); | |
475 | /* Convert to distance from end of input. */ | |
476 | if (XINT (backup_n) < 1) | |
477 | /* A number too small means the beginning of the string. */ | |
478 | pos = - SCHARS (initial); | |
479 | else | |
480 | pos = XINT (backup_n) - 1 - SCHARS (initial); | |
481 | } | |
482 | } | |
483 | else | |
484 | CHECK_STRING (initial); | |
485 | } | |
00a34088 | 486 | val = Qnil; |
57ceaa8a | 487 | ambient_dir = current_buffer->directory; |
cee54539 | 488 | input_method = Qnil; |
c75000c7 | 489 | enable_multibyte = Qnil; |
57ceaa8a | 490 | |
00a34088 RS |
491 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
492 | store them away before we can GC. Don't need to protect | |
493 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 494 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 495 | |
7510b296 | 496 | if (!STRINGP (prompt)) |
695deb18 | 497 | prompt = empty_string; |
f927c5ae | 498 | |
f927c5ae | 499 | if (!enable_recursive_minibuffers |
be15a518 RS |
500 | && minibuf_level > 0) |
501 | { | |
502 | if (EQ (selected_window, minibuf_window)) | |
503 | error ("Command attempted to use minibuffer while in minibuffer"); | |
504 | else | |
505 | /* If we're in another window, cancel the minibuffer that's active. */ | |
506 | Fthrow (Qexit, | |
507 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
508 | } | |
f927c5ae | 509 | |
edfef199 | 510 | if (noninteractive) |
c28b847b | 511 | { |
adb0708c LT |
512 | val = read_minibuf_noninteractive (map, initial, prompt, |
513 | make_number (pos), | |
c28b847b GM |
514 | expflag, histvar, histpos, defalt, |
515 | allow_props, inherit_input_method); | |
f9b9ccef | 516 | UNGCPRO; |
c28b847b GM |
517 | return unbind_to (count, val); |
518 | } | |
edfef199 | 519 | |
748dc60a | 520 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 521 | |
c5b6b680 RS |
522 | choose_minibuf_frame (); |
523 | ||
0c94f256 RS |
524 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
525 | ||
f927c5ae | 526 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
527 | Fcurrent_window_configuration (Qnil)); |
528 | ||
ff11dfa1 JB |
529 | /* If the minibuffer window is on a different frame, save that |
530 | frame's configuration too. */ | |
75f00e72 | 531 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
a4aafc54 | 532 | if (!EQ (mini_frame, selected_frame)) |
5061d9c3 RS |
533 | record_unwind_protect (Fset_window_configuration, |
534 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
535 | |
536 | /* If the minibuffer is on an iconified or invisible frame, | |
537 | make it visible now. */ | |
538 | Fmake_frame_visible (mini_frame); | |
539 | ||
6a9ee000 RS |
540 | if (minibuffer_auto_raise) |
541 | Fraise_frame (mini_frame); | |
f927c5ae | 542 | |
748dc60a RS |
543 | /* We have to do this after saving the window configuration |
544 | since that is what restores the current buffer. */ | |
545 | ||
546 | /* Arrange to restore a number of minibuffer-related variables. | |
547 | We could bind each variable separately, but that would use lots of | |
548 | specpdl slots. */ | |
549 | minibuf_save_list | |
550 | = Fcons (Voverriding_local_map, | |
551 | Fcons (minibuf_window, minibuf_save_list)); | |
552 | minibuf_save_list | |
553 | = Fcons (minibuf_prompt, | |
554 | Fcons (make_number (minibuf_prompt_width), | |
555 | Fcons (Vhelp_form, | |
556 | Fcons (Vcurrent_prefix_arg, | |
557 | Fcons (Vminibuffer_history_position, | |
558 | Fcons (Vminibuffer_history_variable, | |
559 | minibuf_save_list)))))); | |
560 | ||
561 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
562 | minibuf_level++; | |
563 | ||
564 | /* Now that we can restore all those variables, start changing them. */ | |
565 | ||
1e3f16d5 | 566 | minibuf_prompt_width = 0; |
748dc60a RS |
567 | minibuf_prompt = Fcopy_sequence (prompt); |
568 | Vminibuffer_history_position = histpos; | |
569 | Vminibuffer_history_variable = histvar; | |
570 | Vhelp_form = Vminibuffer_help_form; | |
571 | ||
cee54539 | 572 | if (inherit_input_method) |
c75000c7 | 573 | { |
fd771ceb | 574 | /* `current-input-method' is buffer local. So, remember it in |
c75000c7 RS |
575 | INPUT_METHOD before changing the current buffer. */ |
576 | input_method = Fsymbol_value (Qcurrent_input_method); | |
577 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
578 | } | |
cee54539 | 579 | |
748dc60a RS |
580 | /* Switch to the minibuffer. */ |
581 | ||
4f69d8f6 RS |
582 | minibuffer = get_minibuffer (minibuf_level); |
583 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
584 | |
585 | /* The current buffer's default directory is usually the right thing | |
586 | for our minibuffer here. However, if you're typing a command at | |
587 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
588 | the current_buffer, so reset_buffer leaves buf's default | |
589 | directory unchanged. This is a bummer when you've just started | |
590 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
591 | you think of something better to do? Find another buffer with a | |
592 | better directory, and use that one instead. */ | |
748dc60a RS |
593 | if (STRINGP (ambient_dir)) |
594 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
595 | else |
596 | { | |
597 | Lisp_Object buf_list; | |
598 | ||
599 | for (buf_list = Vbuffer_alist; | |
600 | CONSP (buf_list); | |
7539e11f | 601 | buf_list = XCDR (buf_list)) |
64a3a3c0 | 602 | { |
1e62748e | 603 | Lisp_Object other_buf; |
64a3a3c0 | 604 | |
7539e11f | 605 | other_buf = XCDR (XCAR (buf_list)); |
7510b296 | 606 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
607 | { |
608 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
609 | break; | |
610 | } | |
611 | } | |
612 | } | |
613 | ||
a4aafc54 GM |
614 | if (!EQ (mini_frame, selected_frame)) |
615 | Fredirect_frame_focus (selected_frame, mini_frame); | |
43bad991 | 616 | |
f927c5ae | 617 | Vminibuf_scroll_window = selected_window; |
6122844a | 618 | if (minibuf_level == 1 || !EQ (minibuf_window, selected_window)) |
5705966b | 619 | minibuf_selected_window = selected_window; |
cbbfe056 | 620 | Fset_window_buffer (minibuf_window, Fcurrent_buffer (), Qnil); |
f1321dc3 | 621 | Fselect_window (minibuf_window, Qnil); |
5a866662 | 622 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 623 | |
748dc60a RS |
624 | Fmake_local_variable (Qprint_escape_newlines); |
625 | print_escape_newlines = 1; | |
626 | ||
627 | /* Erase the buffer. */ | |
59115a22 | 628 | { |
331379bf | 629 | int count1 = SPECPDL_INDEX (); |
59115a22 | 630 | specbind (Qinhibit_read_only, Qt); |
a41edd99 | 631 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
632 | Ferase_buffer (); |
633 | unbind_to (count1, Qnil); | |
634 | } | |
635 | ||
279cf52c GM |
636 | if (!NILP (current_buffer->enable_multibyte_characters) |
637 | && ! STRING_MULTIBYTE (minibuf_prompt)) | |
638 | minibuf_prompt = Fstring_make_multibyte (minibuf_prompt); | |
639 | ||
279cf52c GM |
640 | /* Insert the prompt, record where it ends. */ |
641 | Finsert (1, &minibuf_prompt); | |
279cf52c GM |
642 | if (PT > BEG) |
643 | { | |
fbd1209a | 644 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 645 | Qfront_sticky, Qt, Qnil); |
fbd1209a | 646 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 647 | Qrear_nonsticky, Qt, Qnil); |
8e9968c6 GM |
648 | Fput_text_property (make_number (BEG), make_number (PT), |
649 | Qfield, Qt, Qnil); | |
cc64f5c9 MB |
650 | Fadd_text_properties (make_number (BEG), make_number (PT), |
651 | Vminibuffer_prompt_properties, Qnil); | |
279cf52c | 652 | } |
9ab4a725 TTN |
653 | |
654 | minibuf_prompt_width = (int) current_column (); /* iftc */ | |
655 | ||
094d9789 RS |
656 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
657 | if (inherit_input_method) | |
658 | current_buffer->enable_multibyte_characters = enable_multibyte; | |
659 | ||
748dc60a | 660 | /* Put in the initial input. */ |
56a98455 | 661 | if (!NILP (initial)) |
f927c5ae JB |
662 | { |
663 | Finsert (1, &initial); | |
adb0708c | 664 | Fforward_char (make_number (pos)); |
f927c5ae JB |
665 | } |
666 | ||
39e98b38 | 667 | clear_message (1, 1); |
f927c5ae JB |
668 | current_buffer->keymap = map; |
669 | ||
cee54539 | 670 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 671 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
672 | call1 (Qactivate_input_method, input_method); |
673 | ||
5c781212 RS |
674 | /* Run our hook, but not if it is empty. |
675 | (run-hooks would do nothing if it is empty, | |
fd771ceb | 676 | but it's important to save time here in the usual case.) */ |
92d3b06e RS |
677 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
678 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
679 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
680 | ||
4e6b7204 MB |
681 | /* Don't allow the user to undo past this point. */ |
682 | current_buffer->undo_list = Qnil; | |
683 | ||
f927c5ae JB |
684 | recursive_edit_1 (); |
685 | ||
686 | /* If cursor is on the minibuffer line, | |
687 | show the user we have exited by putting it in column 0. */ | |
279cf52c | 688 | if (XWINDOW (minibuf_window)->cursor.vpos >= 0 |
f927c5ae JB |
689 | && !noninteractive) |
690 | { | |
279cf52c GM |
691 | XWINDOW (minibuf_window)->cursor.hpos = 0; |
692 | XWINDOW (minibuf_window)->cursor.x = 0; | |
693 | XWINDOW (minibuf_window)->must_be_updated_p = 1; | |
a4aafc54 | 694 | update_frame (XFRAME (selected_frame), 1, 1); |
337aaf1f GM |
695 | if (rif && rif->flush_display) |
696 | rif->flush_display (XFRAME (XWINDOW (minibuf_window)->frame)); | |
f927c5ae JB |
697 | } |
698 | ||
c3421833 | 699 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 700 | Fset_buffer (minibuffer); |
be95a9b6 | 701 | if (allow_props) |
a346ec72 | 702 | val = Fminibuffer_contents (); |
be95a9b6 | 703 | else |
a346ec72 | 704 | val = Fminibuffer_contents_no_properties (); |
770970cb | 705 | |
b278606c | 706 | /* VAL is the string of minibuffer text. */ |
7019cca7 | 707 | |
b278606c BF |
708 | last_minibuf_string = val; |
709 | ||
4f9f637a RS |
710 | /* Choose the string to add to the history. */ |
711 | if (SCHARS (val) != 0) | |
712 | histstring = val; | |
713 | else if (STRINGP (defalt)) | |
714 | histstring = defalt; | |
715 | else | |
716 | histstring = Qnil; | |
717 | ||
718 | /* Add the value to the appropriate history list, if any. */ | |
719 | if (SYMBOLP (Vminibuffer_history_variable) | |
720 | && !NILP (histstring)) | |
3ab14176 KH |
721 | { |
722 | /* If the caller wanted to save the value read on a history list, | |
723 | then do so if the value is not already the front of the list. */ | |
724 | Lisp_Object histval; | |
c6d65724 RS |
725 | |
726 | /* If variable is unbound, make it nil. */ | |
f5c1dd0d | 727 | if (EQ (SYMBOL_VALUE (Vminibuffer_history_variable), Qunbound)) |
c6d65724 RS |
728 | Fset (Vminibuffer_history_variable, Qnil); |
729 | ||
3ab14176 KH |
730 | histval = Fsymbol_value (Vminibuffer_history_variable); |
731 | ||
732 | /* The value of the history variable must be a cons or nil. Other | |
733 | values are unacceptable. We silently ignore these values. */ | |
4f9f637a | 734 | |
3ab14176 | 735 | if (NILP (histval) |
9f6131cf | 736 | || (CONSP (histval) |
4f9f637a RS |
737 | /* Don't duplicate the most recent entry in the history. */ |
738 | && NILP (Fequal (histstring, Fcar (histval))))) | |
77aa8edf RS |
739 | { |
740 | Lisp_Object length; | |
741 | ||
4f9f637a | 742 | histval = Fcons (histstring, histval); |
77aa8edf RS |
743 | Fset (Vminibuffer_history_variable, histval); |
744 | ||
745 | /* Truncate if requested. */ | |
746 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
747 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
748 | if (INTEGERP (length)) |
749 | { | |
750 | if (XINT (length) <= 0) | |
751 | Fset (Vminibuffer_history_variable, Qnil); | |
752 | else | |
753 | { | |
754 | Lisp_Object temp; | |
755 | ||
756 | temp = Fnthcdr (Fsub1 (length), histval); | |
757 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
758 | } | |
759 | } | |
77aa8edf | 760 | } |
9f6131cf RS |
761 | } |
762 | ||
763 | /* If Lisp form desired instead of string, parse it. */ | |
764 | if (expflag) | |
edfef199 | 765 | val = string_to_object (val, defalt); |
3ab14176 | 766 | |
00a34088 RS |
767 | /* The appropriate frame will get selected |
768 | in set-window-configuration. */ | |
f9b9ccef SM |
769 | UNGCPRO; |
770 | return unbind_to (count, val); | |
f927c5ae JB |
771 | } |
772 | ||
773 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
774 | depth = 0 is the lowest allowed argument, and that is the value | |
775 | used for nonrecursive minibuffer invocations */ | |
776 | ||
777 | Lisp_Object | |
778 | get_minibuffer (depth) | |
779 | int depth; | |
780 | { | |
781 | Lisp_Object tail, num, buf; | |
9f6c23bc | 782 | char name[24]; |
f927c5ae JB |
783 | extern Lisp_Object nconc2 (); |
784 | ||
5a866662 | 785 | XSETFASTINT (num, depth); |
f927c5ae | 786 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 787 | if (NILP (tail)) |
f927c5ae JB |
788 | { |
789 | tail = Fcons (Qnil, Qnil); | |
790 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
791 | } | |
792 | buf = Fcar (tail); | |
56a98455 | 793 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
794 | { |
795 | sprintf (name, " *Minibuf-%d*", depth); | |
796 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
797 | |
798 | /* Although the buffer's name starts with a space, undo should be | |
799 | enabled in it. */ | |
800 | Fbuffer_enable_undo (buf); | |
801 | ||
f3fbd155 | 802 | XSETCAR (tail, buf); |
f927c5ae JB |
803 | } |
804 | else | |
5956f71d | 805 | { |
aed13378 | 806 | int count = SPECPDL_INDEX (); |
7f856567 SM |
807 | /* `reset_buffer' blindly sets the list of overlays to NULL, so we |
808 | have to empty the list, otherwise we end up with overlays that | |
809 | think they belong to this buffer while the buffer doesn't know about | |
810 | them any more. */ | |
599ca9c2 SM |
811 | delete_all_overlays (XBUFFER (buf)); |
812 | reset_buffer (XBUFFER (buf)); | |
6b3faad8 RS |
813 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
814 | Fset_buffer (buf); | |
815 | Fkill_all_local_variables (); | |
816 | unbind_to (count, Qnil); | |
5956f71d | 817 | } |
64a3a3c0 | 818 | |
f927c5ae JB |
819 | return buf; |
820 | } | |
821 | ||
279cf52c GM |
822 | /* This function is called on exiting minibuffer, whether normally or |
823 | not, and it restores the current window, buffer, etc. */ | |
f927c5ae | 824 | |
9d815fd9 | 825 | static Lisp_Object |
43bad991 JB |
826 | read_minibuf_unwind (data) |
827 | Lisp_Object data; | |
f927c5ae | 828 | { |
c24e1160 | 829 | Lisp_Object old_deactivate_mark; |
59115a22 | 830 | Lisp_Object window; |
c24e1160 | 831 | |
0a1dd1c5 RS |
832 | /* We are exiting the minibuffer one way or the other, |
833 | so run the hook. */ | |
834 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
835 | && !NILP (Vrun_hooks)) | |
060ffec1 | 836 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 837 | |
f927c5ae | 838 | /* If this was a recursive minibuffer, |
59115a22 | 839 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 840 | minibuf_level--; |
f927c5ae | 841 | |
59115a22 | 842 | window = minibuf_window; |
279cf52c GM |
843 | /* To keep things predictable, in case it matters, let's be in the |
844 | minibuffer when we reset the relevant variables. */ | |
59115a22 RS |
845 | Fset_buffer (XWINDOW (window)->buffer); |
846 | ||
847 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
848 | minibuf_prompt = Fcar (minibuf_save_list); |
849 | minibuf_save_list = Fcdr (minibuf_save_list); | |
850 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
851 | minibuf_save_list = Fcdr (minibuf_save_list); | |
852 | Vhelp_form = Fcar (minibuf_save_list); | |
853 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 854 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
855 | minibuf_save_list = Fcdr (minibuf_save_list); |
856 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
857 | minibuf_save_list = Fcdr (minibuf_save_list); | |
858 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
859 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 860 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 861 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
862 | #if 0 |
863 | temp = Fcar (minibuf_save_list); | |
864 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
865 | minibuf_window = temp; | |
866 | #endif | |
30e13e56 | 867 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
868 | |
869 | /* Erase the minibuffer we were using at this level. */ | |
870 | { | |
aed13378 | 871 | int count = SPECPDL_INDEX (); |
59115a22 RS |
872 | /* Prevent error in erase-buffer. */ |
873 | specbind (Qinhibit_read_only, Qt); | |
bd819d14 | 874 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
875 | old_deactivate_mark = Vdeactivate_mark; |
876 | Ferase_buffer (); | |
877 | Vdeactivate_mark = old_deactivate_mark; | |
878 | unbind_to (count, Qnil); | |
879 | } | |
880 | ||
544e358d GM |
881 | /* When we get to the outmost level, make sure we resize the |
882 | mini-window back to its normal size. */ | |
883 | if (minibuf_level == 0) | |
1e3f16d5 | 884 | resize_mini_window (XWINDOW (window), 0); |
544e358d | 885 | |
59115a22 RS |
886 | /* Make sure minibuffer window is erased, not ignored. */ |
887 | windows_or_buffers_changed++; | |
888 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 889 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 | 890 | return Qnil; |
f927c5ae JB |
891 | } |
892 | \f | |
b9d721de | 893 | |
cee54539 | 894 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
af52c32d | 895 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 PJ |
896 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string |
897 | to be inserted into the minibuffer before reading input. | |
898 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input | |
899 | is STRING, but point is placed at position POSITION in the minibuffer. | |
900 | Third arg KEYMAP is a keymap to use whilst reading; | |
901 | if omitted or nil, the default is `minibuffer-local-map'. | |
fd771ceb | 902 | If fourth arg READ is non-nil, then interpret the result as a Lisp object |
a1f17501 PJ |
903 | and return that object: |
904 | in other words, do `(car (read-from-string INPUT-STRING))' | |
905 | Fifth arg HIST, if non-nil, specifies a history list | |
906 | and optionally the initial position in the list. | |
907 | It can be a symbol, which is the history list variable to use, | |
908 | or it can be a cons cell (HISTVAR . HISTPOS). | |
909 | In that case, HISTVAR is the history list variable to use, | |
910 | and HISTPOS is the initial position (the position in the list | |
911 | which INITIAL-CONTENTS corresponds to). | |
912 | Positions are counted starting from 1 at the beginning of the list. | |
913 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is available | |
adb0708c LT |
914 | for history commands; but, unless READ is non-nil, `read-from-minibuffer' |
915 | does NOT return DEFAULT-VALUE if the user enters empty input! It returns | |
916 | the empty string. | |
a1f17501 | 917 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits |
029a305c | 918 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
919 | If the variable `minibuffer-allow-text-properties' is non-nil, |
920 | then the string which is returned includes whatever text properties | |
af52c32d MB |
921 | were present in the minibuffer. Otherwise the value has no text properties. */) |
922 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
e5d4686b | 923 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 924 | Lisp_Object inherit_input_method; |
f927c5ae | 925 | { |
adb0708c | 926 | Lisp_Object histvar, histpos, val; |
1d8d92f4 RS |
927 | struct gcpro gcpro1; |
928 | ||
b7826503 | 929 | CHECK_STRING (prompt); |
56a98455 | 930 | if (NILP (keymap)) |
f927c5ae JB |
931 | keymap = Vminibuffer_local_map; |
932 | else | |
02067692 | 933 | keymap = get_keymap (keymap, 1, 0); |
770970cb | 934 | |
7510b296 | 935 | if (SYMBOLP (hist)) |
770970cb RS |
936 | { |
937 | histvar = hist; | |
938 | histpos = Qnil; | |
939 | } | |
940 | else | |
941 | { | |
942 | histvar = Fcar_safe (hist); | |
943 | histpos = Fcdr_safe (hist); | |
944 | } | |
945 | if (NILP (histvar)) | |
946 | histvar = Qminibuffer_history; | |
947 | if (NILP (histpos)) | |
5a866662 | 948 | XSETFASTINT (histpos, 0); |
770970cb | 949 | |
1d8d92f4 | 950 | GCPRO1 (default_value); |
e5d4686b | 951 | val = read_minibuf (keymap, initial_contents, prompt, |
adb0708c | 952 | Qnil, !NILP (read), |
c3421833 | 953 | histvar, histpos, default_value, |
cee54539 KH |
954 | minibuffer_allow_text_properties, |
955 | !NILP (inherit_input_method)); | |
1d8d92f4 | 956 | UNGCPRO; |
e5d4686b | 957 | return val; |
f927c5ae JB |
958 | } |
959 | ||
960 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
af52c32d | 961 | doc: /* Return a Lisp object read using the minibuffer. |
a1f17501 | 962 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
af52c32d MB |
963 | is a string to insert in the minibuffer before reading. */) |
964 | (prompt, initial_contents) | |
f927c5ae JB |
965 | Lisp_Object prompt, initial_contents; |
966 | { | |
b7826503 | 967 | CHECK_STRING (prompt); |
770970cb | 968 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 969 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 970 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
971 | } |
972 | ||
973 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
af52c32d | 974 | doc: /* Return value of Lisp expression read using the minibuffer. |
a1f17501 | 975 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
af52c32d MB |
976 | is a string to insert in the minibuffer before reading. */) |
977 | (prompt, initial_contents) | |
f927c5ae JB |
978 | Lisp_Object prompt, initial_contents; |
979 | { | |
980 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
981 | } | |
982 | ||
983 | /* Functions that use the minibuffer to read various things. */ | |
984 | ||
cee54539 | 985 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
af52c32d | 986 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 PJ |
987 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading. |
988 | The third arg HISTORY, if non-nil, specifies a history list | |
989 | and optionally the initial position in the list. | |
990 | See `read-from-minibuffer' for details of HISTORY argument. | |
991 | Fourth arg DEFAULT-VALUE is the default value. If non-nil, it is used | |
992 | for history commands, and as the value to return if the user enters | |
993 | the empty string. | |
994 | Fifth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 995 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 996 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 997 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 998 | Lisp_Object inherit_input_method; |
f927c5ae | 999 | { |
b9a86585 RS |
1000 | Lisp_Object val; |
1001 | val = Fread_from_minibuffer (prompt, initial_input, Qnil, | |
1002 | Qnil, history, default_value, | |
1003 | inherit_input_method); | |
d5db4077 | 1004 | if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (default_value)) |
b9a86585 RS |
1005 | val = default_value; |
1006 | return val; | |
f927c5ae JB |
1007 | } |
1008 | ||
cee54539 | 1009 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
af52c32d | 1010 | doc: /* Read a string from the terminal, not allowing blanks. |
a1f17501 PJ |
1011 | Prompt with PROMPT, and provide INITIAL as an initial value of the input string. |
1012 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 1013 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 1014 | (prompt, initial, inherit_input_method) |
c923ccc9 | 1015 | Lisp_Object prompt, initial, inherit_input_method; |
f927c5ae | 1016 | { |
b7826503 | 1017 | CHECK_STRING (prompt); |
c923ccc9 | 1018 | return read_minibuf (Vminibuffer_local_ns_map, initial, prompt, Qnil, |
cee54539 KH |
1019 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
1020 | !NILP (inherit_input_method)); | |
f927c5ae JB |
1021 | } |
1022 | ||
e5d4686b | 1023 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
af52c32d | 1024 | doc: /* Read the name of a command and return as a symbol. |
fd771ceb | 1025 | Prompt with PROMPT. By default, return DEFAULT-VALUE. */) |
af52c32d | 1026 | (prompt, default_value) |
e5d4686b | 1027 | Lisp_Object prompt, default_value; |
f927c5ae | 1028 | { |
7c8d9931 RS |
1029 | Lisp_Object name, default_string; |
1030 | ||
1031 | if (NILP (default_value)) | |
1032 | default_string = Qnil; | |
1033 | else if (SYMBOLP (default_value)) | |
caa4733e | 1034 | default_string = SYMBOL_NAME (default_value); |
7c8d9931 RS |
1035 | else |
1036 | default_string = default_value; | |
9ab4a725 | 1037 | |
7c8d9931 RS |
1038 | name = Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, |
1039 | Qnil, Qnil, default_string, Qnil); | |
1040 | if (NILP (name)) | |
1041 | return name; | |
1042 | return Fintern (name, Qnil); | |
f927c5ae JB |
1043 | } |
1044 | ||
1045 | #ifdef NOTDEF | |
1046 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
af52c32d | 1047 | doc: /* One arg PROMPT, a string. Read the name of a function and return as a symbol. |
fd771ceb | 1048 | Prompt with PROMPT. */) |
af52c32d | 1049 | (prompt) |
f927c5ae JB |
1050 | Lisp_Object prompt; |
1051 | { | |
cee54539 | 1052 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
1053 | Qnil); |
1054 | } | |
1055 | #endif /* NOTDEF */ | |
1056 | ||
e5d4686b | 1057 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
af52c32d | 1058 | doc: /* Read the name of a user variable and return it as a symbol. |
fd771ceb | 1059 | Prompt with PROMPT. By default, return DEFAULT-VALUE. |
316f9bfc | 1060 | A user variable is one for which `user-variable-p' returns non-nil. */) |
af52c32d | 1061 | (prompt, default_value) |
e5d4686b | 1062 | Lisp_Object prompt, default_value; |
f927c5ae | 1063 | { |
7c8d9931 RS |
1064 | Lisp_Object name, default_string; |
1065 | ||
1066 | if (NILP (default_value)) | |
1067 | default_string = Qnil; | |
1068 | else if (SYMBOLP (default_value)) | |
caa4733e | 1069 | default_string = SYMBOL_NAME (default_value); |
7c8d9931 RS |
1070 | else |
1071 | default_string = default_value; | |
9ab4a725 | 1072 | |
7c8d9931 RS |
1073 | name = Fcompleting_read (prompt, Vobarray, |
1074 | Quser_variable_p, Qt, | |
1075 | Qnil, Qnil, default_string, Qnil); | |
1076 | if (NILP (name)) | |
1077 | return name; | |
1078 | return Fintern (name, Qnil); | |
f927c5ae JB |
1079 | } |
1080 | ||
1081 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
fd771ceb PJ |
1082 | doc: /* Read the name of a buffer and return as a string. |
1083 | Prompt with PROMPT. | |
a1f17501 | 1084 | Optional second arg DEF is value to return if user enters an empty line. |
fd771ceb PJ |
1085 | If optional third arg REQUIRE-MATCH is non-nil, |
1086 | only existing buffer names are allowed. */) | |
af52c32d | 1087 | (prompt, def, require_match) |
f927c5ae JB |
1088 | Lisp_Object prompt, def, require_match; |
1089 | { | |
eebbfb01 | 1090 | Lisp_Object args[4]; |
9ab4a725 | 1091 | |
7510b296 | 1092 | if (BUFFERP (def)) |
f927c5ae | 1093 | def = XBUFFER (def)->name; |
eebbfb01 KH |
1094 | |
1095 | if (NILP (Vread_buffer_function)) | |
1096 | { | |
1097 | if (!NILP (def)) | |
1098 | { | |
1099 | args[0] = build_string ("%s(default %s) "); | |
1100 | args[1] = prompt; | |
1101 | args[2] = def; | |
1102 | prompt = Fformat (3, args); | |
1103 | } | |
1104 | ||
1105 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
406e55df RS |
1106 | require_match, Qnil, Qbuffer_name_history, |
1107 | def, Qnil); | |
eebbfb01 KH |
1108 | } |
1109 | else | |
f927c5ae | 1110 | { |
eebbfb01 | 1111 | args[0] = Vread_buffer_function; |
f927c5ae JB |
1112 | args[1] = prompt; |
1113 | args[2] = def; | |
eebbfb01 KH |
1114 | args[3] = require_match; |
1115 | return Ffuncall(4, args); | |
f927c5ae | 1116 | } |
f927c5ae JB |
1117 | } |
1118 | \f | |
ec067ec7 RS |
1119 | static Lisp_Object |
1120 | minibuf_conform_representation (string, basis) | |
1121 | Lisp_Object string, basis; | |
1122 | { | |
1123 | if (STRING_MULTIBYTE (string) == STRING_MULTIBYTE (basis)) | |
1124 | return string; | |
1125 | ||
1126 | if (STRING_MULTIBYTE (string)) | |
1127 | return Fstring_make_unibyte (string); | |
1128 | else | |
1129 | return Fstring_make_multibyte (string); | |
1130 | } | |
1131 | ||
f927c5ae | 1132 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, |
af52c32d | 1133 | doc: /* Return common substring of all completions of STRING in ALIST. |
f9b9ccef SM |
1134 | Each car of each element of ALIST (or each element if it is not a cons cell) |
1135 | is tested to see if it begins with STRING. | |
a1f17501 PJ |
1136 | All that match are compared together; the longest initial sequence |
1137 | common to all matches is returned as a string. | |
1138 | If there is no match at all, nil is returned. | |
1139 | For a unique match which is exact, t is returned. | |
1140 | ||
85cd4372 SM |
1141 | If ALIST is a hash-table, all the string keys are the possible matches. |
1142 | If ALIST is an obarray, the names of all symbols in the obarray | |
1143 | are the possible matches. | |
a1f17501 PJ |
1144 | |
1145 | ALIST can also be a function to do the completion itself. | |
1146 | It receives three arguments: the values STRING, PREDICATE and nil. | |
1147 | Whatever it returns becomes the value of `try-completion'. | |
1148 | ||
1149 | If optional third argument PREDICATE is non-nil, | |
1150 | it is used to test each possible match. | |
1151 | The match is a candidate only if PREDICATE returns non-nil. | |
1152 | The argument given to PREDICATE is the alist element | |
85cd4372 SM |
1153 | or the symbol from the obarray. If ALIST is a hash-table, |
1154 | predicate is called with two arguments: the key and the value. | |
a1f17501 | 1155 | Additionally to this predicate, `completion-regexp-list' |
af52c32d MB |
1156 | is used to further constrain the set of candidates. */) |
1157 | (string, alist, predicate) | |
7efd36fc | 1158 | Lisp_Object string, alist, predicate; |
f927c5ae JB |
1159 | { |
1160 | Lisp_Object bestmatch, tail, elt, eltstring; | |
af2b7cd5 | 1161 | /* Size in bytes of BESTMATCH. */ |
6bbd7a29 | 1162 | int bestmatchsize = 0; |
af2b7cd5 | 1163 | /* These are in bytes, too. */ |
f927c5ae | 1164 | int compare, matchsize; |
85cd4372 SM |
1165 | int type = HASH_TABLE_P (alist) ? 3 |
1166 | : VECTORP (alist) ? 2 | |
1167 | : NILP (alist) || (CONSP (alist) | |
1168 | && (!SYMBOLP (XCAR (alist)) | |
1169 | || NILP (XCAR (alist)))); | |
6bbd7a29 | 1170 | int index = 0, obsize = 0; |
f927c5ae JB |
1171 | int matchcount = 0; |
1172 | Lisp_Object bucket, zero, end, tem; | |
1173 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1174 | ||
b7826503 | 1175 | CHECK_STRING (string); |
85cd4372 | 1176 | if (type == 0) |
7efd36fc | 1177 | return call3 (alist, string, predicate, Qnil); |
f927c5ae | 1178 | |
6bbd7a29 | 1179 | bestmatch = bucket = Qnil; |
f927c5ae JB |
1180 | |
1181 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1182 | tail = alist; | |
85cd4372 | 1183 | if (type == 2) |
f927c5ae | 1184 | { |
f927c5ae JB |
1185 | obsize = XVECTOR (alist)->size; |
1186 | bucket = XVECTOR (alist)->contents[index]; | |
1187 | } | |
1188 | ||
1189 | while (1) | |
1190 | { | |
85cd4372 | 1191 | /* Get the next element of the alist, obarray, or hash-table. */ |
f927c5ae JB |
1192 | /* Exit the loop if the elements are all used up. */ |
1193 | /* elt gets the alist element or symbol. | |
1194 | eltstring gets the name to check as a completion. */ | |
1195 | ||
85cd4372 | 1196 | if (type == 1) |
f927c5ae | 1197 | { |
695deb18 | 1198 | if (!CONSP (tail)) |
f927c5ae | 1199 | break; |
695deb18 SM |
1200 | elt = XCAR (tail); |
1201 | eltstring = CONSP (elt) ? XCAR (elt) : elt; | |
1202 | tail = XCDR (tail); | |
f927c5ae | 1203 | } |
85cd4372 | 1204 | else if (type == 2) |
f927c5ae JB |
1205 | { |
1206 | if (XFASTINT (bucket) != 0) | |
1207 | { | |
1208 | elt = bucket; | |
1209 | eltstring = Fsymbol_name (elt); | |
1210 | if (XSYMBOL (bucket)->next) | |
1211 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1212 | else | |
5a866662 | 1213 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1214 | } |
1215 | else if (++index >= obsize) | |
1216 | break; | |
1217 | else | |
1218 | { | |
1219 | bucket = XVECTOR (alist)->contents[index]; | |
1220 | continue; | |
1221 | } | |
1222 | } | |
85cd4372 SM |
1223 | else /* if (type == 3) */ |
1224 | { | |
1225 | while (index < HASH_TABLE_SIZE (XHASH_TABLE (alist)) | |
1226 | && NILP (HASH_HASH (XHASH_TABLE (alist), index))) | |
1227 | index++; | |
1228 | if (index >= HASH_TABLE_SIZE (XHASH_TABLE (alist))) | |
1229 | break; | |
1230 | else | |
1231 | elt = eltstring = HASH_KEY (XHASH_TABLE (alist), index++); | |
1232 | } | |
f927c5ae JB |
1233 | |
1234 | /* Is this element a possible completion? */ | |
1235 | ||
7510b296 | 1236 | if (STRINGP (eltstring) |
d5db4077 | 1237 | && SCHARS (string) <= SCHARS (eltstring) |
69f4ef20 | 1238 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1239 | make_number (SCHARS (string)), |
69f4ef20 RS |
1240 | string, make_number (0), Qnil, |
1241 | completion_ignore_case ?Qt : Qnil), | |
1242 | EQ (Qt, tem))) | |
f927c5ae JB |
1243 | { |
1244 | /* Yes. */ | |
42006772 RS |
1245 | Lisp_Object regexps; |
1246 | Lisp_Object zero; | |
5a866662 | 1247 | XSETFASTINT (zero, 0); |
42006772 RS |
1248 | |
1249 | /* Ignore this element if it fails to match all the regexps. */ | |
1250 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1251 | regexps = XCDR (regexps)) |
42006772 | 1252 | { |
7539e11f | 1253 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1254 | if (NILP (tem)) |
1255 | break; | |
1256 | } | |
1257 | if (CONSP (regexps)) | |
1258 | continue; | |
1259 | ||
f927c5ae JB |
1260 | /* Ignore this element if there is a predicate |
1261 | and the predicate doesn't like it. */ | |
1262 | ||
7efd36fc | 1263 | if (!NILP (predicate)) |
f927c5ae | 1264 | { |
7efd36fc | 1265 | if (EQ (predicate, Qcommandp)) |
c837f4f9 | 1266 | tem = Fcommandp (elt, Qnil); |
f927c5ae JB |
1267 | else |
1268 | { | |
1269 | GCPRO4 (tail, string, eltstring, bestmatch); | |
85cd4372 SM |
1270 | tem = type == 3 |
1271 | ? call2 (predicate, elt, | |
1272 | HASH_VALUE (XHASH_TABLE (alist), index - 1)) | |
1273 | : call1 (predicate, elt); | |
f927c5ae JB |
1274 | UNGCPRO; |
1275 | } | |
56a98455 | 1276 | if (NILP (tem)) continue; |
f927c5ae JB |
1277 | } |
1278 | ||
1279 | /* Update computation of how much all possible completions match */ | |
1280 | ||
56a98455 | 1281 | if (NILP (bestmatch)) |
af2b7cd5 | 1282 | { |
85cd4372 | 1283 | matchcount = 1; |
af2b7cd5 | 1284 | bestmatch = eltstring; |
d5db4077 | 1285 | bestmatchsize = SCHARS (eltstring); |
af2b7cd5 | 1286 | } |
f927c5ae JB |
1287 | else |
1288 | { | |
d5db4077 | 1289 | compare = min (bestmatchsize, SCHARS (eltstring)); |
69f4ef20 RS |
1290 | tem = Fcompare_strings (bestmatch, make_number (0), |
1291 | make_number (compare), | |
1292 | eltstring, make_number (0), | |
1293 | make_number (compare), | |
1294 | completion_ignore_case ? Qt : Qnil); | |
1295 | if (EQ (tem, Qt)) | |
1296 | matchsize = compare; | |
1297 | else if (XINT (tem) < 0) | |
1298 | matchsize = - XINT (tem) - 1; | |
1299 | else | |
1300 | matchsize = XINT (tem) - 1; | |
1301 | ||
52b14ac0 | 1302 | if (matchsize < 0) |
695deb18 | 1303 | /* When can this happen ? -stef */ |
52b14ac0 JB |
1304 | matchsize = compare; |
1305 | if (completion_ignore_case) | |
1306 | { | |
1307 | /* If this is an exact match except for case, | |
1308 | use it as the best match rather than one that is not an | |
1309 | exact match. This way, we get the case pattern | |
1310 | of the actual match. */ | |
d5db4077 KR |
1311 | if ((matchsize == SCHARS (eltstring) |
1312 | && matchsize < SCHARS (bestmatch)) | |
52b14ac0 JB |
1313 | || |
1314 | /* If there is more than one exact match ignoring case, | |
1315 | and one of them is exact including case, | |
1316 | prefer that one. */ | |
1317 | /* If there is no exact match ignoring case, | |
1318 | prefer a match that does not change the case | |
1319 | of the input. */ | |
d5db4077 | 1320 | ((matchsize == SCHARS (eltstring)) |
52b14ac0 | 1321 | == |
d5db4077 | 1322 | (matchsize == SCHARS (bestmatch)) |
69f4ef20 | 1323 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1324 | make_number (SCHARS (string)), |
69f4ef20 RS |
1325 | string, make_number (0), |
1326 | Qnil, | |
1327 | Qnil), | |
1328 | EQ (Qt, tem)) | |
1329 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
d5db4077 | 1330 | make_number (SCHARS (string)), |
69f4ef20 RS |
1331 | string, make_number (0), |
1332 | Qnil, | |
1333 | Qnil), | |
1334 | ! EQ (Qt, tem)))) | |
52b14ac0 JB |
1335 | bestmatch = eltstring; |
1336 | } | |
d5db4077 | 1337 | if (bestmatchsize != SCHARS (eltstring) |
85cd4372 SM |
1338 | || bestmatchsize != matchsize) |
1339 | /* Don't count the same string multiple times. */ | |
1340 | matchcount++; | |
52b14ac0 | 1341 | bestmatchsize = matchsize; |
d5db4077 | 1342 | if (matchsize <= SCHARS (string) |
695deb18 SM |
1343 | && matchcount > 1) |
1344 | /* No need to look any further. */ | |
1345 | break; | |
f927c5ae JB |
1346 | } |
1347 | } | |
1348 | } | |
1349 | ||
56a98455 | 1350 | if (NILP (bestmatch)) |
f927c5ae | 1351 | return Qnil; /* No completions found */ |
52b14ac0 JB |
1352 | /* If we are ignoring case, and there is no exact match, |
1353 | and no additional text was supplied, | |
1354 | don't change the case of what the user typed. */ | |
d5db4077 KR |
1355 | if (completion_ignore_case && bestmatchsize == SCHARS (string) |
1356 | && SCHARS (bestmatch) > bestmatchsize) | |
ec067ec7 | 1357 | return minibuf_conform_representation (string, bestmatch); |
52b14ac0 JB |
1358 | |
1359 | /* Return t if the supplied string is an exact match (counting case); | |
1360 | it does not require any change to be made. */ | |
d5db4077 | 1361 | if (matchcount == 1 && bestmatchsize == SCHARS (string) |
69f4ef20 RS |
1362 | && (tem = Fcompare_strings (bestmatch, make_number (0), |
1363 | make_number (bestmatchsize), | |
1364 | string, make_number (0), | |
1365 | make_number (bestmatchsize), | |
1366 | Qnil), | |
1367 | EQ (Qt, tem))) | |
f927c5ae JB |
1368 | return Qt; |
1369 | ||
5a866662 KH |
1370 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1371 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1372 | return Fsubstring (bestmatch, zero, end); |
1373 | } | |
f927c5ae | 1374 | \f |
89a255dc | 1375 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
af52c32d | 1376 | doc: /* Search for partial matches to STRING in ALIST. |
f9b9ccef SM |
1377 | Each car of each element of ALIST (or each element if it is not a cons cell) |
1378 | is tested to see if it begins with STRING. | |
a1f17501 PJ |
1379 | The value is a list of all the strings from ALIST that match. |
1380 | ||
85cd4372 SM |
1381 | If ALIST is a hash-table, all the string keys are the possible matches. |
1382 | If ALIST is an obarray, the names of all symbols in the obarray | |
1383 | are the possible matches. | |
a1f17501 PJ |
1384 | |
1385 | ALIST can also be a function to do the completion itself. | |
1386 | It receives three arguments: the values STRING, PREDICATE and t. | |
1387 | Whatever it returns becomes the value of `all-completions'. | |
1388 | ||
1389 | If optional third argument PREDICATE is non-nil, | |
1390 | it is used to test each possible match. | |
1391 | The match is a candidate only if PREDICATE returns non-nil. | |
1392 | The argument given to PREDICATE is the alist element | |
85cd4372 SM |
1393 | or the symbol from the obarray. If ALIST is a hash-table, |
1394 | predicate is called with two arguments: the key and the value. | |
a1f17501 PJ |
1395 | Additionally to this predicate, `completion-regexp-list' |
1396 | is used to further constrain the set of candidates. | |
1397 | ||
1398 | If the optional fourth argument HIDE-SPACES is non-nil, | |
1399 | strings in ALIST that start with a space | |
af52c32d MB |
1400 | are ignored unless STRING itself starts with a space. */) |
1401 | (string, alist, predicate, hide_spaces) | |
7efd36fc | 1402 | Lisp_Object string, alist, predicate, hide_spaces; |
f927c5ae JB |
1403 | { |
1404 | Lisp_Object tail, elt, eltstring; | |
1405 | Lisp_Object allmatches; | |
85cd4372 SM |
1406 | int type = HASH_TABLE_P (alist) ? 3 |
1407 | : VECTORP (alist) ? 2 | |
1408 | : NILP (alist) || (CONSP (alist) | |
1409 | && (!SYMBOLP (XCAR (alist)) | |
1410 | || NILP (XCAR (alist)))); | |
6bbd7a29 | 1411 | int index = 0, obsize = 0; |
f927c5ae JB |
1412 | Lisp_Object bucket, tem; |
1413 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1414 | ||
b7826503 | 1415 | CHECK_STRING (string); |
85cd4372 SM |
1416 | if (type == 0) |
1417 | return call3 (alist, string, predicate, Qt); | |
6bbd7a29 | 1418 | allmatches = bucket = Qnil; |
f927c5ae JB |
1419 | |
1420 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1421 | tail = alist; | |
85cd4372 | 1422 | if (type == 2) |
f927c5ae | 1423 | { |
f927c5ae JB |
1424 | obsize = XVECTOR (alist)->size; |
1425 | bucket = XVECTOR (alist)->contents[index]; | |
1426 | } | |
1427 | ||
1428 | while (1) | |
1429 | { | |
85cd4372 | 1430 | /* Get the next element of the alist, obarray, or hash-table. */ |
f927c5ae JB |
1431 | /* Exit the loop if the elements are all used up. */ |
1432 | /* elt gets the alist element or symbol. | |
1433 | eltstring gets the name to check as a completion. */ | |
1434 | ||
85cd4372 | 1435 | if (type == 1) |
f927c5ae | 1436 | { |
695deb18 | 1437 | if (!CONSP (tail)) |
f927c5ae | 1438 | break; |
695deb18 SM |
1439 | elt = XCAR (tail); |
1440 | eltstring = CONSP (elt) ? XCAR (elt) : elt; | |
1441 | tail = XCDR (tail); | |
f927c5ae | 1442 | } |
85cd4372 | 1443 | else if (type == 2) |
f927c5ae JB |
1444 | { |
1445 | if (XFASTINT (bucket) != 0) | |
1446 | { | |
1447 | elt = bucket; | |
1448 | eltstring = Fsymbol_name (elt); | |
1449 | if (XSYMBOL (bucket)->next) | |
1450 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1451 | else | |
5a866662 | 1452 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1453 | } |
1454 | else if (++index >= obsize) | |
1455 | break; | |
1456 | else | |
1457 | { | |
1458 | bucket = XVECTOR (alist)->contents[index]; | |
1459 | continue; | |
1460 | } | |
1461 | } | |
85cd4372 SM |
1462 | else /* if (type == 3) */ |
1463 | { | |
1464 | while (index < HASH_TABLE_SIZE (XHASH_TABLE (alist)) | |
1465 | && NILP (HASH_HASH (XHASH_TABLE (alist), index))) | |
1466 | index++; | |
1467 | if (index >= HASH_TABLE_SIZE (XHASH_TABLE (alist))) | |
1468 | break; | |
1469 | else | |
1470 | elt = eltstring = HASH_KEY (XHASH_TABLE (alist), index++); | |
1471 | } | |
f927c5ae JB |
1472 | |
1473 | /* Is this element a possible completion? */ | |
1474 | ||
7510b296 | 1475 | if (STRINGP (eltstring) |
d5db4077 | 1476 | && SCHARS (string) <= SCHARS (eltstring) |
89a255dc | 1477 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 | 1478 | unless the input starts with space. */ |
d5db4077 KR |
1479 | && ((SBYTES (string) > 0 |
1480 | && SREF (string, 0) == ' ') | |
1481 | || SREF (eltstring, 0) != ' ' | |
89a255dc | 1482 | || NILP (hide_spaces)) |
69f4ef20 | 1483 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1484 | make_number (SCHARS (string)), |
69f4ef20 | 1485 | string, make_number (0), |
d5db4077 | 1486 | make_number (SCHARS (string)), |
69f4ef20 RS |
1487 | completion_ignore_case ? Qt : Qnil), |
1488 | EQ (Qt, tem))) | |
f927c5ae JB |
1489 | { |
1490 | /* Yes. */ | |
42006772 RS |
1491 | Lisp_Object regexps; |
1492 | Lisp_Object zero; | |
5a866662 | 1493 | XSETFASTINT (zero, 0); |
42006772 RS |
1494 | |
1495 | /* Ignore this element if it fails to match all the regexps. */ | |
1496 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1497 | regexps = XCDR (regexps)) |
42006772 | 1498 | { |
7539e11f | 1499 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1500 | if (NILP (tem)) |
1501 | break; | |
1502 | } | |
1503 | if (CONSP (regexps)) | |
1504 | continue; | |
1505 | ||
f927c5ae JB |
1506 | /* Ignore this element if there is a predicate |
1507 | and the predicate doesn't like it. */ | |
1508 | ||
7efd36fc | 1509 | if (!NILP (predicate)) |
f927c5ae | 1510 | { |
7efd36fc | 1511 | if (EQ (predicate, Qcommandp)) |
c837f4f9 | 1512 | tem = Fcommandp (elt, Qnil); |
f927c5ae JB |
1513 | else |
1514 | { | |
1515 | GCPRO4 (tail, eltstring, allmatches, string); | |
85cd4372 SM |
1516 | tem = type == 3 |
1517 | ? call2 (predicate, elt, | |
1518 | HASH_VALUE (XHASH_TABLE (alist), index - 1)) | |
1519 | : call1 (predicate, elt); | |
f927c5ae JB |
1520 | UNGCPRO; |
1521 | } | |
56a98455 | 1522 | if (NILP (tem)) continue; |
f927c5ae JB |
1523 | } |
1524 | /* Ok => put it on the list. */ | |
1525 | allmatches = Fcons (eltstring, allmatches); | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | return Fnreverse (allmatches); | |
1530 | } | |
1531 | \f | |
1532 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1533 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1534 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
ccf330a6 | 1535 | Lisp_Object Vminibuffer_completing_file_name; |
f927c5ae | 1536 | |
cee54539 | 1537 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
af52c32d | 1538 | doc: /* Read a string in the minibuffer, with completion. |
a1f17501 PJ |
1539 | PROMPT is a string to prompt with; normally it ends in a colon and a space. |
1540 | TABLE is an alist whose elements' cars are strings, or an obarray. | |
1541 | TABLE can also be a function to do the completion itself. | |
1542 | PREDICATE limits completion to a subset of TABLE. | |
1543 | See `try-completion' and `all-completions' for more details | |
1544 | on completion, TABLE, and PREDICATE. | |
1545 | ||
1546 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless | |
1547 | the input is (or completes to) an element of TABLE or is null. | |
345c105f | 1548 | If it is also not t, typing RET does not exit if it does non-null completion. |
a1f17501 PJ |
1549 | If the input is null, `completing-read' returns an empty string, |
1550 | regardless of the value of REQUIRE-MATCH. | |
1551 | ||
1552 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially. | |
1553 | If it is (STRING . POSITION), the initial input | |
1554 | is STRING, but point is placed POSITION characters into the string. | |
345c105f RS |
1555 | This feature is deprecated--it is best to pass nil for INITIAL-INPUT |
1556 | and supply the default value DEF instead. The user can yank the | |
1557 | default value into the minibuffer easily using \\[next-history-element]. | |
9ab4a725 | 1558 | |
a1f17501 PJ |
1559 | HIST, if non-nil, specifies a history list |
1560 | and optionally the initial position in the list. | |
1561 | It can be a symbol, which is the history list variable to use, | |
1562 | or it can be a cons cell (HISTVAR . HISTPOS). | |
1563 | In that case, HISTVAR is the history list variable to use, | |
1564 | and HISTPOS is the initial position (the position in the list | |
1565 | which INITIAL-INPUT corresponds to). | |
1566 | Positions are counted starting from 1 at the beginning of the list. | |
38668f81 RS |
1567 | The variable `history-length' controls the maximum length of a |
1568 | history list. | |
1569 | ||
a1f17501 PJ |
1570 | DEF, if non-nil, is the default value. |
1571 | ||
1572 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits | |
029a305c | 1573 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
1574 | |
1575 | Completion ignores case if the ambient value of | |
af52c32d MB |
1576 | `completion-ignore-case' is non-nil. */) |
1577 | (prompt, table, predicate, require_match, initial_input, hist, def, inherit_input_method) | |
d43f85c2 RS |
1578 | Lisp_Object prompt, table, predicate, require_match, initial_input; |
1579 | Lisp_Object hist, def, inherit_input_method; | |
f927c5ae | 1580 | { |
86408abd LT |
1581 | Lisp_Object val, histvar, histpos, position; |
1582 | Lisp_Object init; | |
1583 | int pos = 0; | |
aed13378 | 1584 | int count = SPECPDL_INDEX (); |
0c8ee1a2 RS |
1585 | struct gcpro gcpro1; |
1586 | ||
86408abd | 1587 | init = initial_input; |
0c8ee1a2 RS |
1588 | GCPRO1 (def); |
1589 | ||
f927c5ae | 1590 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1591 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae | 1592 | specbind (Qminibuffer_completion_confirm, |
695deb18 | 1593 | EQ (require_match, Qt) ? Qnil : require_match); |
f927c5ae | 1594 | last_exact_completion = Qnil; |
770970cb | 1595 | |
86408abd LT |
1596 | position = Qnil; |
1597 | if (!NILP (init)) | |
1598 | { | |
1599 | if (CONSP (init)) | |
1600 | { | |
1601 | position = Fcdr (init); | |
1602 | init = Fcar (init); | |
1603 | } | |
1604 | CHECK_STRING (init); | |
1605 | if (!NILP (position)) | |
1606 | { | |
1607 | CHECK_NUMBER (position); | |
1608 | /* Convert to distance from end of input. */ | |
1609 | pos = XINT (position) - SCHARS (init); | |
1610 | } | |
1611 | } | |
1612 | ||
7510b296 | 1613 | if (SYMBOLP (hist)) |
770970cb RS |
1614 | { |
1615 | histvar = hist; | |
1616 | histpos = Qnil; | |
1617 | } | |
1618 | else | |
1619 | { | |
1620 | histvar = Fcar_safe (hist); | |
1621 | histpos = Fcdr_safe (hist); | |
1622 | } | |
1623 | if (NILP (histvar)) | |
1624 | histvar = Qminibuffer_history; | |
1625 | if (NILP (histpos)) | |
5a866662 | 1626 | XSETFASTINT (histpos, 0); |
770970cb | 1627 | |
56a98455 | 1628 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1629 | ? Vminibuffer_local_completion_map |
1630 | : Vminibuffer_local_must_match_map, | |
86408abd | 1631 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1632 | histvar, histpos, def, 0, |
1633 | !NILP (inherit_input_method)); | |
b9a86585 | 1634 | |
d5db4077 | 1635 | if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (def)) |
b9a86585 RS |
1636 | val = def; |
1637 | ||
0c8ee1a2 | 1638 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1639 | } |
1640 | \f | |
f927c5ae | 1641 | Lisp_Object Fminibuffer_completion_help (); |
695deb18 | 1642 | Lisp_Object Fassoc_string (); |
5d2ca7ae RS |
1643 | |
1644 | /* Test whether TXT is an exact completion. */ | |
695deb18 SM |
1645 | DEFUN ("test-completion", Ftest_completion, Stest_completion, 2, 3, 0, |
1646 | doc: /* Return non-nil if STRING is a valid completion. | |
1647 | Takes the same arguments as `all-completions' and `try-completion'. | |
1648 | If ALIST is a function, it is called with three arguments: | |
1649 | the values STRING, PREDICATE and `lambda'. */) | |
1650 | (string, alist, predicate) | |
1651 | Lisp_Object string, alist, predicate; | |
5d2ca7ae | 1652 | { |
adb0708c | 1653 | Lisp_Object regexps, tail, tem = Qnil; |
85cd4372 | 1654 | int i = 0; |
5d2ca7ae | 1655 | |
695deb18 SM |
1656 | CHECK_STRING (string); |
1657 | ||
1658 | if ((CONSP (alist) && (!SYMBOLP (XCAR (alist)) || NILP (XCAR (alist)))) | |
1659 | || NILP (alist)) | |
1660 | { | |
1661 | tem = Fassoc_string (string, alist, completion_ignore_case ? Qt : Qnil); | |
85cd4372 | 1662 | if NILP (tem) |
695deb18 SM |
1663 | return Qnil; |
1664 | } | |
1665 | else if (VECTORP (alist)) | |
5d2ca7ae | 1666 | { |
695deb18 SM |
1667 | /* Bypass intern-soft as that loses for nil. */ |
1668 | tem = oblookup (alist, | |
d5db4077 KR |
1669 | SDATA (string), |
1670 | SCHARS (string), | |
1671 | SBYTES (string)); | |
44472c88 | 1672 | if (!SYMBOLP (tem)) |
9404446f | 1673 | { |
695deb18 SM |
1674 | if (STRING_MULTIBYTE (string)) |
1675 | string = Fstring_make_unibyte (string); | |
9404446f | 1676 | else |
695deb18 | 1677 | string = Fstring_make_multibyte (string); |
9404446f | 1678 | |
adb0708c | 1679 | tem = oblookup (alist, |
d5db4077 KR |
1680 | SDATA (string), |
1681 | SCHARS (string), | |
1682 | SBYTES (string)); | |
9404446f | 1683 | } |
adb0708c LT |
1684 | |
1685 | if (completion_ignore_case && !SYMBOLP (tem)) | |
1686 | { | |
1687 | for (i = XVECTOR (alist)->size - 1; i >= 0; i--) | |
1688 | { | |
1689 | tail = XVECTOR (alist)->contents[i]; | |
1690 | if (SYMBOLP (tail)) | |
1691 | while (1) | |
1692 | { | |
1693 | if (EQ((Fcompare_strings (string, make_number (0), Qnil, | |
1694 | Fsymbol_name (tail), | |
1695 | make_number (0) , Qnil, Qt)), | |
1696 | Qt)) | |
1697 | { | |
1698 | tem = tail; | |
1699 | break; | |
1700 | } | |
1701 | if (XSYMBOL (tail)->next == 0) | |
1702 | break; | |
1703 | XSETSYMBOL (tail, XSYMBOL (tail)->next); | |
1704 | } | |
1705 | } | |
1706 | } | |
1707 | ||
1708 | if (!SYMBOLP (tem)) | |
1709 | return Qnil; | |
5d2ca7ae | 1710 | } |
85cd4372 SM |
1711 | else if (HASH_TABLE_P (alist)) |
1712 | { | |
adb0708c LT |
1713 | struct Lisp_Hash_Table *h = XHASH_TABLE (alist); |
1714 | i = hash_lookup (h, string, NULL); | |
85cd4372 | 1715 | if (i >= 0) |
adb0708c | 1716 | tem = HASH_KEY (h, i); |
85cd4372 | 1717 | else |
adb0708c LT |
1718 | for (i = 0; i < HASH_TABLE_SIZE (h); ++i) |
1719 | if (!NILP (HASH_HASH (h, i)) && | |
1720 | EQ (Fcompare_strings (string, make_number (0), Qnil, | |
1721 | HASH_KEY (h, i), make_number (0) , Qnil, | |
1722 | completion_ignore_case ? Qt : Qnil), | |
1723 | Qt)) | |
1724 | { | |
1725 | tem = HASH_KEY (h, i); | |
1726 | break; | |
1727 | } | |
1728 | if (!STRINGP (tem)) | |
85cd4372 SM |
1729 | return Qnil; |
1730 | } | |
5d2ca7ae | 1731 | else |
695deb18 SM |
1732 | return call3 (alist, string, predicate, Qlambda); |
1733 | ||
1734 | /* Reject this element if it fails to match all the regexps. */ | |
1735 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1736 | regexps = XCDR (regexps)) | |
1737 | { | |
1738 | if (NILP (Fstring_match (XCAR (regexps), | |
1739 | SYMBOLP (tem) ? string : tem, | |
1740 | Qnil))) | |
1741 | return Qnil; | |
1742 | } | |
1743 | ||
1744 | /* Finally, check the predicate. */ | |
1745 | if (!NILP (predicate)) | |
85cd4372 SM |
1746 | return HASH_TABLE_P (alist) |
1747 | ? call2 (predicate, tem, HASH_VALUE (XHASH_TABLE (alist), i)) | |
1748 | : call1 (predicate, tem); | |
695deb18 SM |
1749 | else |
1750 | return Qt; | |
5d2ca7ae | 1751 | } |
f927c5ae JB |
1752 | |
1753 | /* returns: | |
1754 | * 0 no possible completion | |
1755 | * 1 was already an exact and unique completion | |
1756 | * 3 was already an exact completion | |
1757 | * 4 completed to an exact completion | |
1758 | * 5 some completion happened | |
1759 | * 6 no completion happened | |
1760 | */ | |
1761 | int | |
1762 | do_completion () | |
1763 | { | |
0c80756e | 1764 | Lisp_Object completion, string, tem; |
f927c5ae JB |
1765 | int completedp; |
1766 | Lisp_Object last; | |
1e00c2ff | 1767 | struct gcpro gcpro1, gcpro2; |
f927c5ae | 1768 | |
1011edb5 | 1769 | completion = Ftry_completion (minibuffer_completion_contents (), |
8e9968c6 | 1770 | Vminibuffer_completion_table, |
f927c5ae JB |
1771 | Vminibuffer_completion_predicate); |
1772 | last = last_exact_completion; | |
1773 | last_exact_completion = Qnil; | |
1774 | ||
4f9b95e5 KH |
1775 | GCPRO2 (completion, last); |
1776 | ||
56a98455 | 1777 | if (NILP (completion)) |
f927c5ae JB |
1778 | { |
1779 | bitch_at_user (); | |
805221da | 1780 | temp_echo_area_glyphs (build_string (" [No match]")); |
1e00c2ff | 1781 | UNGCPRO; |
f927c5ae JB |
1782 | return 0; |
1783 | } | |
1784 | ||
1785 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1786 | { |
1787 | UNGCPRO; | |
1788 | return 1; | |
1789 | } | |
f927c5ae | 1790 | |
1011edb5 | 1791 | string = minibuffer_completion_contents (); |
0c80756e MB |
1792 | |
1793 | /* COMPLETEDP should be true if some completion was done, which | |
1794 | doesn't include simply changing the case of the entered string. | |
1795 | However, for appearance, the string is rewritten if the case | |
1796 | changes. */ | |
1797 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qt); | |
01cce3e7 | 1798 | completedp = !EQ (tem, Qt); |
0c80756e | 1799 | |
7892a68b KH |
1800 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qnil); |
1801 | if (!EQ (tem, Qt)) | |
0c80756e | 1802 | /* Rewrite the user's input. */ |
f927c5ae | 1803 | { |
1011edb5 RS |
1804 | int prompt_end = XINT (Fminibuffer_prompt_end ()); |
1805 | /* Some completion happened */ | |
1806 | ||
1807 | if (! NILP (Vminibuffer_completing_file_name) | |
d5db4077 | 1808 | && SREF (completion, SBYTES (completion) - 1) == '/' |
1011edb5 RS |
1809 | && PT < ZV |
1810 | && FETCH_CHAR (PT_BYTE) == '/') | |
1811 | { | |
1812 | del_range (prompt_end, PT + 1); | |
1813 | } | |
1814 | else | |
1815 | del_range (prompt_end, PT); | |
1816 | ||
f927c5ae | 1817 | Finsert (1, &completion); |
6e69ab8c MB |
1818 | |
1819 | if (! completedp) | |
1820 | /* The case of the string changed, but that's all. We're not | |
1821 | sure whether this is a unique completion or not, so try again | |
1822 | using the real case (this shouldn't recurse again, because | |
1823 | the next time try-completion will return either `t' or the | |
1824 | exact string). */ | |
1825 | { | |
1826 | UNGCPRO; | |
1827 | return do_completion (); | |
1828 | } | |
f927c5ae JB |
1829 | } |
1830 | ||
1831 | /* It did find a match. Do we match some possibility exactly now? */ | |
695deb18 SM |
1832 | tem = Ftest_completion (Fminibuffer_contents (), |
1833 | Vminibuffer_completion_table, | |
1834 | Vminibuffer_completion_predicate); | |
56a98455 | 1835 | if (NILP (tem)) |
1e00c2ff KH |
1836 | { |
1837 | /* not an exact match */ | |
1838 | UNGCPRO; | |
f927c5ae JB |
1839 | if (completedp) |
1840 | return 5; | |
739cc391 | 1841 | else if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1842 | Fminibuffer_completion_help (); |
1843 | else | |
805221da | 1844 | temp_echo_area_glyphs (build_string (" [Next char not unique]")); |
f927c5ae JB |
1845 | return 6; |
1846 | } | |
1847 | else if (completedp) | |
1e00c2ff KH |
1848 | { |
1849 | UNGCPRO; | |
1850 | return 4; | |
1851 | } | |
f927c5ae JB |
1852 | /* If the last exact completion and this one were the same, |
1853 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1854 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1855 | last_exact_completion = completion; |
56a98455 | 1856 | if (!NILP (last)) |
f927c5ae | 1857 | { |
1011edb5 | 1858 | tem = minibuffer_completion_contents (); |
56a98455 | 1859 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1860 | Fminibuffer_completion_help (); |
1861 | } | |
1e00c2ff | 1862 | UNGCPRO; |
f927c5ae | 1863 | return 3; |
f927c5ae | 1864 | } |
1e00c2ff | 1865 | |
52b14ac0 JB |
1866 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1867 | ||
695deb18 SM |
1868 | DEFUN ("assoc-string", Fassoc_string, Sassoc_string, 2, 3, 0, |
1869 | doc: /* Like `assoc' but specifically for strings. | |
1870 | Unibyte strings are converted to multibyte for comparison. | |
1871 | And case is ignored if CASE-FOLD is non-nil. | |
1872 | As opposed to `assoc', it will also match an entry consisting of a single | |
1873 | string rather than a cons cell whose car is a string. */) | |
1874 | (key, list, case_fold) | |
52b14ac0 | 1875 | register Lisp_Object key; |
695deb18 | 1876 | Lisp_Object list, case_fold; |
52b14ac0 JB |
1877 | { |
1878 | register Lisp_Object tail; | |
1879 | ||
56a98455 | 1880 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1881 | { |
1882 | register Lisp_Object elt, tem, thiscar; | |
1883 | elt = Fcar (tail); | |
695deb18 | 1884 | thiscar = CONSP (elt) ? XCAR (elt) : elt; |
7510b296 | 1885 | if (!STRINGP (thiscar)) |
52b14ac0 | 1886 | continue; |
9404446f RS |
1887 | tem = Fcompare_strings (thiscar, make_number (0), Qnil, |
1888 | key, make_number (0), Qnil, | |
695deb18 | 1889 | case_fold); |
9404446f RS |
1890 | if (EQ (tem, Qt)) |
1891 | return elt; | |
52b14ac0 JB |
1892 | QUIT; |
1893 | } | |
1894 | return Qnil; | |
1895 | } | |
f927c5ae JB |
1896 | |
1897 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
af52c32d | 1898 | doc: /* Complete the minibuffer contents as far as possible. |
a1f17501 PJ |
1899 | Return nil if there is no valid completion, else t. |
1900 | If no characters can be completed, display a list of possible completions. | |
1901 | If you repeat this command after it displayed such a list, | |
af52c32d MB |
1902 | scroll the window of possible completions. */) |
1903 | () | |
f927c5ae | 1904 | { |
2cb6da5c RS |
1905 | register int i; |
1906 | Lisp_Object window, tem; | |
1907 | ||
df902b62 RS |
1908 | /* If the previous command was not this, |
1909 | mark the completion buffer obsolete. */ | |
1910 | if (! EQ (current_kboard->Vlast_command, Vthis_command)) | |
2cb6da5c RS |
1911 | Vminibuf_scroll_window = Qnil; |
1912 | ||
1913 | window = Vminibuf_scroll_window; | |
1914 | /* If there's a fresh completion window with a live buffer, | |
1915 | and this command is repeated, scroll that window. */ | |
1916 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1917 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1918 | { | |
1919 | struct buffer *obuf = current_buffer; | |
1920 | ||
1921 | Fset_buffer (XWINDOW (window)->buffer); | |
7d7c3861 | 1922 | tem = Fpos_visible_in_window_p (make_number (ZV), window, Qnil); |
2cb6da5c RS |
1923 | if (! NILP (tem)) |
1924 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1925 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1926 | else |
1927 | /* Else scroll down one screen. */ | |
1928 | Fscroll_other_window (Qnil); | |
1929 | ||
1930 | set_buffer_internal (obuf); | |
1931 | return Qnil; | |
1932 | } | |
1933 | ||
1934 | i = do_completion (); | |
f927c5ae JB |
1935 | switch (i) |
1936 | { | |
1937 | case 0: | |
1938 | return Qnil; | |
1939 | ||
1940 | case 1: | |
a1c5aa96 GM |
1941 | if (PT != ZV) |
1942 | Fgoto_char (make_number (ZV)); | |
805221da | 1943 | temp_echo_area_glyphs (build_string (" [Sole completion]")); |
f927c5ae JB |
1944 | break; |
1945 | ||
1946 | case 3: | |
9994cc69 GM |
1947 | if (PT != ZV) |
1948 | Fgoto_char (make_number (ZV)); | |
805221da | 1949 | temp_echo_area_glyphs (build_string (" [Complete, but not unique]")); |
f927c5ae JB |
1950 | break; |
1951 | } | |
1952 | ||
1953 | return Qt; | |
1954 | } | |
e4c97a67 RS |
1955 | \f |
1956 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1957 | ||
1958 | /* This one is called by internal_condition_case to do the real work. */ | |
1959 | ||
1960 | Lisp_Object | |
1961 | complete_and_exit_1 () | |
1962 | { | |
1963 | return make_number (do_completion ()); | |
1964 | } | |
1965 | ||
1966 | /* This one is called by internal_condition_case if an error happens. | |
1967 | Pretend the current value is an exact match. */ | |
1968 | ||
1969 | Lisp_Object | |
1970 | complete_and_exit_2 (ignore) | |
1971 | Lisp_Object ignore; | |
1972 | { | |
1973 | return make_number (1); | |
1974 | } | |
f927c5ae JB |
1975 | |
1976 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
94c7167b | 1977 | Sminibuffer_complete_and_exit, 0, 0, "", |
af52c32d | 1978 | doc: /* If the minibuffer contents is a valid completion then exit. |
a1f17501 | 1979 | Otherwise try to complete it. If completion leads to a valid completion, |
af52c32d MB |
1980 | a repetition of this command will exit. */) |
1981 | () | |
f927c5ae JB |
1982 | { |
1983 | register int i; | |
e4c97a67 | 1984 | Lisp_Object val; |
f927c5ae JB |
1985 | |
1986 | /* Allow user to specify null string */ | |
a346ec72 | 1987 | if (XINT (Fminibuffer_prompt_end ()) == ZV) |
f927c5ae JB |
1988 | goto exit; |
1989 | ||
695deb18 SM |
1990 | if (!NILP (Ftest_completion (Fminibuffer_contents (), |
1991 | Vminibuffer_completion_table, | |
1992 | Vminibuffer_completion_predicate))) | |
5d2ca7ae RS |
1993 | goto exit; |
1994 | ||
e4c97a67 | 1995 | /* Call do_completion, but ignore errors. */ |
8db426c7 | 1996 | SET_PT (ZV); |
e4c97a67 RS |
1997 | val = internal_condition_case (complete_and_exit_1, Qerror, |
1998 | complete_and_exit_2); | |
1999 | ||
2000 | i = XFASTINT (val); | |
f927c5ae JB |
2001 | switch (i) |
2002 | { | |
2003 | case 1: | |
2004 | case 3: | |
2005 | goto exit; | |
2006 | ||
2007 | case 4: | |
56a98455 | 2008 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae | 2009 | { |
805221da | 2010 | temp_echo_area_glyphs (build_string (" [Confirm]")); |
f927c5ae JB |
2011 | return Qnil; |
2012 | } | |
2013 | else | |
2014 | goto exit; | |
2015 | ||
2016 | default: | |
2017 | return Qnil; | |
2018 | } | |
2019 | exit: | |
6bbd7a29 | 2020 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2021 | /* NOTREACHED */ |
2022 | } | |
2023 | ||
2024 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
94c7167b | 2025 | 0, 0, "", |
af52c32d | 2026 | doc: /* Complete the minibuffer contents at most a single word. |
a1f17501 PJ |
2027 | After one word is completed as much as possible, a space or hyphen |
2028 | is added, provided that matches some possible completion. | |
af52c32d MB |
2029 | Return nil if there is no valid completion, else t. */) |
2030 | () | |
f927c5ae | 2031 | { |
69f4ef20 | 2032 | Lisp_Object completion, tem, tem1; |
af2b7cd5 | 2033 | register int i, i_byte; |
27883fdd | 2034 | register const unsigned char *completion_string; |
d7be4211 | 2035 | struct gcpro gcpro1, gcpro2; |
1011edb5 | 2036 | int prompt_end_charpos = XINT (Fminibuffer_prompt_end ()); |
b278606c BF |
2037 | |
2038 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
2039 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae | 2040 | |
1011edb5 | 2041 | completion = Ftry_completion (minibuffer_completion_contents (), |
f927c5ae JB |
2042 | Vminibuffer_completion_table, |
2043 | Vminibuffer_completion_predicate); | |
56a98455 | 2044 | if (NILP (completion)) |
f927c5ae JB |
2045 | { |
2046 | bitch_at_user (); | |
805221da | 2047 | temp_echo_area_glyphs (build_string (" [No match]")); |
f927c5ae JB |
2048 | return Qnil; |
2049 | } | |
2050 | if (EQ (completion, Qt)) | |
2051 | return Qnil; | |
2052 | ||
b278606c | 2053 | #if 0 /* How the below code used to look, for reference. */ |
a346ec72 | 2054 | tem = Fminibuffer_contents (); |
d5db4077 KR |
2055 | b = SDATA (tem); |
2056 | i = ZV - 1 - SCHARS (completion); | |
2057 | p = SDATA (completion); | |
f927c5ae JB |
2058 | if (i > 0 || |
2059 | 0 <= scmp (b, p, ZV - 1)) | |
2060 | { | |
2061 | i = 1; | |
2062 | /* Set buffer to longest match of buffer tail and completion head. */ | |
2063 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
2064 | i++; | |
2065 | del_range (1, i + 1); | |
2066 | SET_PT (ZV); | |
2067 | } | |
2068 | #else /* Rewritten code */ | |
2069 | { | |
69f4ef20 | 2070 | int buffer_nchars, completion_nchars; |
f927c5ae | 2071 | |
b7826503 | 2072 | CHECK_STRING (completion); |
1011edb5 | 2073 | tem = minibuffer_completion_contents (); |
d7be4211 | 2074 | GCPRO2 (completion, tem); |
719b4a40 RS |
2075 | /* If reading a file name, |
2076 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
ccf330a6 | 2077 | if (! NILP (Vminibuffer_completing_file_name)) |
719b4a40 RS |
2078 | { |
2079 | Lisp_Object substituted; | |
2080 | substituted = Fsubstitute_in_file_name (tem); | |
2081 | if (! EQ (substituted, tem)) | |
2082 | { | |
2083 | tem = substituted; | |
1011edb5 RS |
2084 | del_range (prompt_end_charpos, PT); |
2085 | Finsert (1, &tem); | |
719b4a40 RS |
2086 | } |
2087 | } | |
d5db4077 KR |
2088 | buffer_nchars = SCHARS (tem); /* # chars in what we completed. */ |
2089 | completion_nchars = SCHARS (completion); | |
69f4ef20 RS |
2090 | i = buffer_nchars - completion_nchars; |
2091 | if (i > 0 | |
2092 | || | |
2093 | (tem1 = Fcompare_strings (tem, make_number (0), | |
2094 | make_number (buffer_nchars), | |
2095 | completion, make_number (0), | |
2096 | make_number (buffer_nchars), | |
2097 | completion_ignore_case ? Qt : Qnil), | |
2098 | ! EQ (tem1, Qt))) | |
f927c5ae | 2099 | { |
69f4ef20 RS |
2100 | int start_pos; |
2101 | ||
1011edb5 RS |
2102 | /* Make buffer (before point) contain the longest match |
2103 | of TEM's tail and COMPLETION's head. */ | |
69f4ef20 RS |
2104 | if (i <= 0) i = 1; |
2105 | start_pos= i; | |
2106 | buffer_nchars -= i; | |
669c6673 | 2107 | while (i > 0) |
69f4ef20 | 2108 | { |
669c6673 | 2109 | tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil, |
69f4ef20 RS |
2110 | completion, make_number (0), |
2111 | make_number (buffer_nchars), | |
2112 | completion_ignore_case ? Qt : Qnil); | |
2113 | start_pos++; | |
2114 | if (EQ (tem1, Qt)) | |
2115 | break; | |
2116 | i++; | |
669c6673 | 2117 | buffer_nchars--; |
69f4ef20 | 2118 | } |
4f9f637a | 2119 | del_range (start_pos, start_pos + buffer_nchars); |
f927c5ae | 2120 | } |
d7be4211 | 2121 | UNGCPRO; |
f927c5ae JB |
2122 | } |
2123 | #endif /* Rewritten code */ | |
9ab4a725 | 2124 | |
279cf52c | 2125 | { |
8e9968c6 | 2126 | int prompt_end_bytepos; |
279cf52c | 2127 | prompt_end_bytepos = CHAR_TO_BYTE (prompt_end_charpos); |
1011edb5 RS |
2128 | i = PT - prompt_end_charpos; |
2129 | i_byte = PT_BYTE - prompt_end_bytepos; | |
279cf52c | 2130 | } |
f927c5ae JB |
2131 | |
2132 | /* If completion finds next char not unique, | |
b278606c | 2133 | consider adding a space or a hyphen. */ |
d5db4077 | 2134 | if (i == SCHARS (completion)) |
f927c5ae | 2135 | { |
b278606c | 2136 | GCPRO1 (completion); |
1011edb5 RS |
2137 | tem = Ftry_completion (concat2 (minibuffer_completion_contents (), |
2138 | build_string (" ")), | |
f927c5ae JB |
2139 | Vminibuffer_completion_table, |
2140 | Vminibuffer_completion_predicate); | |
b278606c BF |
2141 | UNGCPRO; |
2142 | ||
7510b296 | 2143 | if (STRINGP (tem)) |
f927c5ae JB |
2144 | completion = tem; |
2145 | else | |
2146 | { | |
b278606c BF |
2147 | GCPRO1 (completion); |
2148 | tem = | |
1011edb5 RS |
2149 | Ftry_completion (concat2 (minibuffer_completion_contents (), |
2150 | build_string ("-")), | |
b278606c BF |
2151 | Vminibuffer_completion_table, |
2152 | Vminibuffer_completion_predicate); | |
2153 | UNGCPRO; | |
2154 | ||
7510b296 | 2155 | if (STRINGP (tem)) |
f927c5ae JB |
2156 | completion = tem; |
2157 | } | |
9ab4a725 | 2158 | } |
f927c5ae JB |
2159 | |
2160 | /* Now find first word-break in the stuff found by completion. | |
2161 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
2162 | { |
2163 | int len, c; | |
d5db4077 KR |
2164 | int bytes = SBYTES (completion); |
2165 | completion_string = SDATA (completion); | |
2166 | for (; i_byte < SBYTES (completion); i_byte += len, i++) | |
d50a3d2a | 2167 | { |
af2b7cd5 | 2168 | c = STRING_CHAR_AND_LENGTH (completion_string + i_byte, |
54643b2c | 2169 | bytes - i_byte, |
d50a3d2a KH |
2170 | len); |
2171 | if (SYNTAX (c) != Sword) | |
2172 | { | |
af2b7cd5 RS |
2173 | i_byte += len; |
2174 | i++; | |
d50a3d2a KH |
2175 | break; |
2176 | } | |
2177 | } | |
2178 | } | |
f927c5ae JB |
2179 | |
2180 | /* If got no characters, print help for user. */ | |
2181 | ||
1011edb5 | 2182 | if (i == PT - prompt_end_charpos) |
f927c5ae | 2183 | { |
739cc391 | 2184 | if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
2185 | Fminibuffer_completion_help (); |
2186 | return Qnil; | |
2187 | } | |
2188 | ||
2189 | /* Otherwise insert in minibuffer the chars we got */ | |
2190 | ||
1011edb5 | 2191 | if (! NILP (Vminibuffer_completing_file_name) |
d5db4077 | 2192 | && SREF (completion, SBYTES (completion) - 1) == '/' |
1011edb5 RS |
2193 | && PT < ZV |
2194 | && FETCH_CHAR (PT_BYTE) == '/') | |
2195 | { | |
2196 | del_range (prompt_end_charpos, PT + 1); | |
2197 | } | |
2198 | else | |
2199 | del_range (prompt_end_charpos, PT); | |
2200 | ||
af2b7cd5 | 2201 | insert_from_string (completion, 0, 0, i, i_byte, 1); |
f927c5ae JB |
2202 | return Qt; |
2203 | } | |
2204 | \f | |
2205 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
2206 | 1, 1, 0, | |
af52c32d | 2207 | doc: /* Display the list of completions, COMPLETIONS, using `standard-output'. |
a1f17501 PJ |
2208 | Each element may be just a symbol or string |
2209 | or may be a list of two strings to be printed as if concatenated. | |
2210 | `standard-output' must be a buffer. | |
2211 | The actual completion alternatives, as inserted, are given `mouse-face' | |
2212 | properties of `highlight'. | |
2213 | At the end, this runs the normal hook `completion-setup-hook'. | |
af52c32d MB |
2214 | It can find the completion buffer in `standard-output'. */) |
2215 | (completions) | |
f927c5ae JB |
2216 | Lisp_Object completions; |
2217 | { | |
dae36123 | 2218 | Lisp_Object tail, elt; |
f927c5ae | 2219 | register int i; |
2dc2b736 | 2220 | int column = 0; |
dae36123 | 2221 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 2222 | struct buffer *old = current_buffer; |
681f5af4 | 2223 | int first = 1; |
486cc7fb RS |
2224 | |
2225 | /* Note that (when it matters) every variable | |
dae36123 RS |
2226 | points to a non-string that is pointed to by COMPLETIONS, |
2227 | except for ELT. ELT can be pointing to a string | |
2228 | when terpri or Findent_to calls a change hook. */ | |
2229 | elt = Qnil; | |
2230 | GCPRO2 (completions, elt); | |
486cc7fb | 2231 | |
7510b296 | 2232 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 2233 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 2234 | |
56a98455 | 2235 | if (NILP (completions)) |
cfc736bf RS |
2236 | write_string ("There are no possible completions of what you have typed.", |
2237 | -1); | |
f927c5ae JB |
2238 | else |
2239 | { | |
2dc2b736 | 2240 | write_string ("Possible completions are:", -1); |
56a98455 | 2241 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 2242 | { |
ec067ec7 | 2243 | Lisp_Object tem, string; |
681f5af4 | 2244 | int length; |
47d7d104 | 2245 | Lisp_Object startpos, endpos; |
681f5af4 | 2246 | |
6bbd7a29 GM |
2247 | startpos = Qnil; |
2248 | ||
681f5af4 RS |
2249 | elt = Fcar (tail); |
2250 | /* Compute the length of this element. */ | |
2251 | if (CONSP (elt)) | |
2252 | { | |
49db96ce | 2253 | tem = XCAR (elt); |
b7826503 | 2254 | CHECK_STRING (tem); |
d5db4077 | 2255 | length = SCHARS (tem); |
681f5af4 | 2256 | |
49db96ce | 2257 | tem = Fcar (XCDR (elt)); |
b7826503 | 2258 | CHECK_STRING (tem); |
d5db4077 | 2259 | length += SCHARS (tem); |
681f5af4 RS |
2260 | } |
2261 | else | |
2262 | { | |
b7826503 | 2263 | CHECK_STRING (elt); |
d5db4077 | 2264 | length = SCHARS (elt); |
681f5af4 RS |
2265 | } |
2266 | ||
2267 | /* This does a bad job for narrower than usual windows. | |
2268 | Sadly, the window it will appear in is not known | |
2269 | until after the text has been made. */ | |
2270 | ||
47d7d104 RS |
2271 | if (BUFFERP (Vstandard_output)) |
2272 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2273 | ||
681f5af4 RS |
2274 | /* If the previous completion was very wide, |
2275 | or we have two on this line already, | |
2276 | don't put another on the same line. */ | |
2277 | if (column > 33 || first | |
2278 | /* If this is really wide, don't put it second on a line. */ | |
13c67cc6 | 2279 | || (column > 0 && length > 45)) |
681f5af4 RS |
2280 | { |
2281 | Fterpri (Qnil); | |
2282 | column = 0; | |
2283 | } | |
2284 | /* Otherwise advance to column 35. */ | |
2285 | else | |
2dc2b736 | 2286 | { |
7510b296 | 2287 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
2288 | { |
2289 | tem = Findent_to (make_number (35), make_number (2)); | |
9ab4a725 | 2290 | |
681f5af4 RS |
2291 | column = XINT (tem); |
2292 | } | |
2dc2b736 RS |
2293 | else |
2294 | { | |
2295 | do | |
2296 | { | |
2297 | write_string (" ", -1); | |
2298 | column++; | |
2299 | } | |
2300 | while (column < 35); | |
2301 | } | |
2302 | } | |
681f5af4 | 2303 | |
47d7d104 RS |
2304 | if (BUFFERP (Vstandard_output)) |
2305 | { | |
2306 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2307 | Fset_text_properties (startpos, endpos, | |
2308 | Qnil, Vstandard_output); | |
2309 | } | |
2310 | ||
ec067ec7 | 2311 | /* Output this element. |
9404446f | 2312 | If necessary, convert it to unibyte or to multibyte first. */ |
f927c5ae | 2313 | if (CONSP (elt)) |
ec067ec7 | 2314 | string = Fcar (elt); |
f927c5ae | 2315 | else |
ec067ec7 RS |
2316 | string = elt; |
2317 | if (NILP (current_buffer->enable_multibyte_characters) | |
2318 | && STRING_MULTIBYTE (string)) | |
2319 | string = Fstring_make_unibyte (string); | |
9404446f RS |
2320 | else if (!NILP (current_buffer->enable_multibyte_characters) |
2321 | && !STRING_MULTIBYTE (string)) | |
2322 | string = Fstring_make_multibyte (string); | |
5744fa7c RS |
2323 | |
2324 | if (BUFFERP (Vstandard_output)) | |
2325 | { | |
4b37311e | 2326 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c RS |
2327 | |
2328 | Fprinc (string, Qnil); | |
2329 | ||
4b37311e | 2330 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c | 2331 | |
4b37311e | 2332 | Fput_text_property (startpos, endpos, |
5744fa7c RS |
2333 | Qmouse_face, intern ("highlight"), |
2334 | Vstandard_output); | |
2335 | } | |
2336 | else | |
2337 | { | |
2338 | Fprinc (string, Qnil); | |
2339 | } | |
ec067ec7 RS |
2340 | |
2341 | /* Output the annotation for this element. */ | |
2342 | if (CONSP (elt)) | |
4b37311e RS |
2343 | { |
2344 | if (BUFFERP (Vstandard_output)) | |
2345 | { | |
2346 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2347 | ||
2348 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2349 | ||
2350 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2351 | ||
2352 | Fset_text_properties (startpos, endpos, Qnil, | |
2353 | Vstandard_output); | |
2354 | } | |
2355 | else | |
2356 | { | |
2357 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2358 | } | |
2359 | } | |
2360 | ||
681f5af4 | 2361 | |
ec067ec7 | 2362 | /* Update COLUMN for what we have output. */ |
681f5af4 RS |
2363 | column += length; |
2364 | ||
2365 | /* If output is to a buffer, recompute COLUMN in a way | |
2366 | that takes account of character widths. */ | |
2367 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 2368 | { |
681f5af4 RS |
2369 | tem = Fcurrent_column (); |
2370 | column = XINT (tem); | |
2dc2b736 | 2371 | } |
681f5af4 RS |
2372 | |
2373 | first = 0; | |
f927c5ae JB |
2374 | } |
2375 | } | |
2dc2b736 | 2376 | |
486cc7fb RS |
2377 | UNGCPRO; |
2378 | ||
7510b296 | 2379 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
2380 | set_buffer_internal (old); |
2381 | ||
cfc736bf RS |
2382 | if (!NILP (Vrun_hooks)) |
2383 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
2384 | ||
f927c5ae JB |
2385 | return Qnil; |
2386 | } | |
2387 | ||
2388 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
94c7167b | 2389 | 0, 0, "", |
af52c32d MB |
2390 | doc: /* Display a list of possible completions of the current minibuffer contents. */) |
2391 | () | |
f927c5ae JB |
2392 | { |
2393 | Lisp_Object completions; | |
2394 | ||
2395 | message ("Making completion list..."); | |
1011edb5 | 2396 | completions = Fall_completions (minibuffer_completion_contents (), |
f927c5ae | 2397 | Vminibuffer_completion_table, |
89a255dc RS |
2398 | Vminibuffer_completion_predicate, |
2399 | Qt); | |
39e98b38 | 2400 | clear_message (1, 0); |
f927c5ae | 2401 | |
56a98455 | 2402 | if (NILP (completions)) |
f927c5ae JB |
2403 | { |
2404 | bitch_at_user (); | |
805221da | 2405 | temp_echo_area_glyphs (build_string (" [No completions]")); |
f927c5ae JB |
2406 | } |
2407 | else | |
2408 | internal_with_output_to_temp_buffer ("*Completions*", | |
2409 | Fdisplay_completion_list, | |
2410 | Fsort (completions, Qstring_lessp)); | |
2411 | return Qnil; | |
2412 | } | |
2413 | \f | |
2414 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
af52c32d MB |
2415 | doc: /* Terminate minibuffer input. */) |
2416 | () | |
f927c5ae | 2417 | { |
7510b296 | 2418 | if (INTEGERP (last_command_char)) |
dab3ab3c | 2419 | internal_self_insert (XINT (last_command_char), 0); |
f927c5ae JB |
2420 | else |
2421 | bitch_at_user (); | |
2422 | ||
6bbd7a29 | 2423 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2424 | } |
2425 | ||
2426 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
af52c32d MB |
2427 | doc: /* Terminate this minibuffer argument. */) |
2428 | () | |
f927c5ae | 2429 | { |
6bbd7a29 | 2430 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2431 | } |
2432 | ||
2433 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
af52c32d MB |
2434 | doc: /* Return current depth of activations of minibuffer, a nonnegative integer. */) |
2435 | () | |
f927c5ae JB |
2436 | { |
2437 | return make_number (minibuf_level); | |
2438 | } | |
2439 | ||
37e9a934 | 2440 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
af52c32d MB |
2441 | doc: /* Return the prompt string of the currently-active minibuffer. |
2442 | If no minibuffer is active, return nil. */) | |
2443 | () | |
37e9a934 | 2444 | { |
4d04c1f1 | 2445 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
2446 | } |
2447 | ||
f927c5ae | 2448 | \f |
805221da | 2449 | /* Temporarily display STRING at the end of the current |
2d955a50 RS |
2450 | minibuffer contents. This is used to display things like |
2451 | "[No Match]" when the user requests a completion for a prefix | |
2452 | that has no possible completions, and other quick, unobtrusive | |
2453 | messages. */ | |
2454 | ||
9d815fd9 | 2455 | void |
805221da KH |
2456 | temp_echo_area_glyphs (string) |
2457 | Lisp_Object string; | |
2d955a50 RS |
2458 | { |
2459 | int osize = ZV; | |
a9c26562 | 2460 | int osize_byte = ZV_BYTE; |
2d955a50 | 2461 | int opoint = PT; |
a9c26562 | 2462 | int opoint_byte = PT_BYTE; |
2d955a50 RS |
2463 | Lisp_Object oinhibit; |
2464 | oinhibit = Vinhibit_quit; | |
2465 | ||
2466 | /* Clear out any old echo-area message to make way for our new thing. */ | |
2467 | message (0); | |
2468 | ||
a9c26562 | 2469 | SET_PT_BOTH (osize, osize_byte); |
805221da | 2470 | insert_from_string (string, 0, 0, SCHARS (string), SBYTES (string), 0); |
a9c26562 | 2471 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2472 | Vinhibit_quit = Qt; |
2473 | Fsit_for (make_number (2), Qnil, Qnil); | |
bc69581b | 2474 | del_range_both (osize, osize_byte, ZV, ZV_BYTE, 1); |
a9c26562 | 2475 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2476 | if (!NILP (Vquit_flag)) |
2477 | { | |
2478 | Vquit_flag = Qnil; | |
2479 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
2480 | } | |
2481 | Vinhibit_quit = oinhibit; | |
2482 | } | |
2483 | ||
2484 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
94c7167b | 2485 | 1, 1, 0, |
af52c32d | 2486 | doc: /* Temporarily display STRING at the end of the minibuffer. |
a1f17501 | 2487 | The text is displayed for two seconds, |
af52c32d MB |
2488 | or until the next input event arrives, whichever comes first. */) |
2489 | (string) | |
2d955a50 RS |
2490 | Lisp_Object string; |
2491 | { | |
1a9e275b | 2492 | CHECK_STRING (string); |
805221da | 2493 | temp_echo_area_glyphs (string); |
2d955a50 RS |
2494 | return Qnil; |
2495 | } | |
2496 | \f | |
9d815fd9 | 2497 | void |
f927c5ae JB |
2498 | init_minibuf_once () |
2499 | { | |
2500 | Vminibuffer_list = Qnil; | |
2501 | staticpro (&Vminibuffer_list); | |
2502 | } | |
2503 | ||
9d815fd9 | 2504 | void |
f927c5ae JB |
2505 | syms_of_minibuf () |
2506 | { | |
2507 | minibuf_level = 0; | |
4d04c1f1 KH |
2508 | minibuf_prompt = Qnil; |
2509 | staticpro (&minibuf_prompt); | |
2510 | ||
2511 | minibuf_save_list = Qnil; | |
2512 | staticpro (&minibuf_save_list); | |
f927c5ae | 2513 | |
719b4a40 RS |
2514 | Qread_file_name_internal = intern ("read-file-name-internal"); |
2515 | staticpro (&Qread_file_name_internal); | |
2516 | ||
e5d4686b RS |
2517 | Qminibuffer_default = intern ("minibuffer-default"); |
2518 | staticpro (&Qminibuffer_default); | |
2519 | Fset (Qminibuffer_default, Qnil); | |
2520 | ||
f927c5ae JB |
2521 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
2522 | staticpro (&Qminibuffer_completion_table); | |
2523 | ||
2524 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
2525 | staticpro (&Qminibuffer_completion_confirm); | |
2526 | ||
2527 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
2528 | staticpro (&Qminibuffer_completion_predicate); | |
2529 | ||
1e00c2ff KH |
2530 | staticpro (&last_exact_completion); |
2531 | last_exact_completion = Qnil; | |
2532 | ||
f927c5ae JB |
2533 | staticpro (&last_minibuf_string); |
2534 | last_minibuf_string = Qnil; | |
2535 | ||
2536 | Quser_variable_p = intern ("user-variable-p"); | |
2537 | staticpro (&Quser_variable_p); | |
2538 | ||
770970cb RS |
2539 | Qminibuffer_history = intern ("minibuffer-history"); |
2540 | staticpro (&Qminibuffer_history); | |
f927c5ae | 2541 | |
406e55df RS |
2542 | Qbuffer_name_history = intern ("buffer-name-history"); |
2543 | staticpro (&Qbuffer_name_history); | |
33d0a17f | 2544 | Fset (Qbuffer_name_history, Qnil); |
406e55df | 2545 | |
5c781212 RS |
2546 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
2547 | staticpro (&Qminibuffer_setup_hook); | |
2548 | ||
177aecf9 KH |
2549 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
2550 | staticpro (&Qminibuffer_exit_hook); | |
2551 | ||
77aa8edf RS |
2552 | Qhistory_length = intern ("history-length"); |
2553 | staticpro (&Qhistory_length); | |
2554 | ||
cee54539 KH |
2555 | Qcurrent_input_method = intern ("current-input-method"); |
2556 | staticpro (&Qcurrent_input_method); | |
2557 | ||
2558 | Qactivate_input_method = intern ("activate-input-method"); | |
2559 | staticpro (&Qactivate_input_method); | |
2560 | ||
af52c32d MB |
2561 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2562 | doc: /* If this is non-nil, `read-buffer' does its work by calling this function. */); | |
eebbfb01 KH |
2563 | Vread_buffer_function = Qnil; |
2564 | ||
af52c32d MB |
2565 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2566 | doc: /* Normal hook run just after entry to minibuffer. */); | |
5c781212 RS |
2567 | Vminibuffer_setup_hook = Qnil; |
2568 | ||
af52c32d MB |
2569 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2570 | doc: /* Normal hook run just after exit from minibuffer. */); | |
177aecf9 KH |
2571 | Vminibuffer_exit_hook = Qnil; |
2572 | ||
af52c32d MB |
2573 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2574 | doc: /* *Maximum length for history lists before truncation takes place. | |
a1f17501 PJ |
2575 | A number means that length; t means infinite. Truncation takes place |
2576 | just after a new element is inserted. Setting the history-length | |
2577 | property of a history variable overrides this default. */); | |
77aa8edf RS |
2578 | XSETFASTINT (Vhistory_length, 30); |
2579 | ||
af52c32d MB |
2580 | DEFVAR_LISP ("completion-auto-help", &Vcompletion_auto_help, |
2581 | doc: /* *Non-nil means automatically provide help for invalid completion input. */); | |
739cc391 | 2582 | Vcompletion_auto_help = Qt; |
f927c5ae | 2583 | |
af52c32d MB |
2584 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, |
2585 | doc: /* Non-nil means don't consider case significant in completion. */); | |
f927c5ae JB |
2586 | completion_ignore_case = 0; |
2587 | ||
af52c32d MB |
2588 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, |
2589 | doc: /* *Non-nil means to allow minibuffer commands while in the minibuffer. | |
a1f17501 | 2590 | This variable makes a difference whenever the minibuffer window is active. */); |
f927c5ae JB |
2591 | enable_recursive_minibuffers = 0; |
2592 | ||
af52c32d MB |
2593 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, |
2594 | doc: /* Alist or obarray used for completion in the minibuffer. | |
a1f17501 PJ |
2595 | This becomes the ALIST argument to `try-completion' and `all-completion'. |
2596 | ||
2597 | The value may alternatively be a function, which is given three arguments: | |
2598 | STRING, the current buffer contents; | |
2599 | PREDICATE, the predicate for filtering possible matches; | |
2600 | CODE, which says what kind of things to do. | |
2601 | CODE can be nil, t or `lambda'. | |
2602 | nil means to return the best completion of STRING, or nil if there is none. | |
2603 | t means to return a list of all possible completions of STRING. | |
2604 | `lambda' means to return t if STRING is a valid completion as it stands. */); | |
f927c5ae JB |
2605 | Vminibuffer_completion_table = Qnil; |
2606 | ||
af52c32d MB |
2607 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, |
2608 | doc: /* Within call to `completing-read', this holds the PREDICATE argument. */); | |
f927c5ae JB |
2609 | Vminibuffer_completion_predicate = Qnil; |
2610 | ||
af52c32d | 2611 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, |
fd771ceb | 2612 | doc: /* Non-nil means to demand confirmation of completion before exiting minibuffer. */); |
f927c5ae JB |
2613 | Vminibuffer_completion_confirm = Qnil; |
2614 | ||
ccf330a6 | 2615 | DEFVAR_LISP ("minibuffer-completing-file-name", |
af52c32d MB |
2616 | &Vminibuffer_completing_file_name, |
2617 | doc: /* Non-nil means completing file names. */); | |
ccf330a6 RS |
2618 | Vminibuffer_completing_file_name = Qnil; |
2619 | ||
af52c32d MB |
2620 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, |
2621 | doc: /* Value that `help-form' takes on inside the minibuffer. */); | |
f927c5ae JB |
2622 | Vminibuffer_help_form = Qnil; |
2623 | ||
af52c32d MB |
2624 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2625 | doc: /* History list symbol to add minibuffer values to. | |
a1f17501 PJ |
2626 | Each string of minibuffer input, as it appears on exit from the minibuffer, |
2627 | is added with | |
2628 | (set minibuffer-history-variable | |
2629 | (cons STRING (symbol-value minibuffer-history-variable))) */); | |
5a866662 | 2630 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb | 2631 | |
af52c32d MB |
2632 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, |
2633 | doc: /* Current position of redoing in the history list. */); | |
770970cb RS |
2634 | Vminibuffer_history_position = Qnil; |
2635 | ||
af52c32d MB |
2636 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
2637 | doc: /* *Non-nil means entering the minibuffer raises the minibuffer's frame. | |
a1f17501 | 2638 | Some uses of the echo area also raise that frame (since they use it too). */); |
6a9ee000 RS |
2639 | minibuffer_auto_raise = 0; |
2640 | ||
af52c32d MB |
2641 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2642 | doc: /* List of regexps that should restrict possible completions. */); | |
42006772 RS |
2643 | Vcompletion_regexp_list = Qnil; |
2644 | ||
c3421833 | 2645 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
af52c32d MB |
2646 | &minibuffer_allow_text_properties, |
2647 | doc: /* Non-nil means `read-from-minibuffer' should not discard text properties. | |
a1f17501 PJ |
2648 | This also affects `read-string', but it does not affect `read-minibuffer', |
2649 | `read-no-blanks-input', or any of the functions that do minibuffer input | |
2650 | with completion; they always discard text properties. */); | |
c3421833 RS |
2651 | minibuffer_allow_text_properties = 0; |
2652 | ||
af52c32d MB |
2653 | DEFVAR_LISP ("minibuffer-prompt-properties", &Vminibuffer_prompt_properties, |
2654 | doc: /* Text properties that are added to minibuffer prompts. | |
a1f17501 PJ |
2655 | These are in addition to the basic `field' property, and stickiness |
2656 | properties. */); | |
cc64f5c9 MB |
2657 | /* We use `intern' here instead of Qread_only to avoid |
2658 | initialization-order problems. */ | |
2659 | Vminibuffer_prompt_properties | |
2660 | = Fcons (intern ("read-only"), Fcons (Qt, Qnil)); | |
2661 | ||
68313ed8 | 2662 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2663 | defsubr (&Sread_from_minibuffer); |
2664 | defsubr (&Seval_minibuffer); | |
2665 | defsubr (&Sread_minibuffer); | |
2666 | defsubr (&Sread_string); | |
2667 | defsubr (&Sread_command); | |
2668 | defsubr (&Sread_variable); | |
2669 | defsubr (&Sread_buffer); | |
2670 | defsubr (&Sread_no_blanks_input); | |
2671 | defsubr (&Sminibuffer_depth); | |
37e9a934 | 2672 | defsubr (&Sminibuffer_prompt); |
f927c5ae | 2673 | |
873ef78e | 2674 | defsubr (&Sminibufferp); |
a346ec72 MB |
2675 | defsubr (&Sminibuffer_prompt_end); |
2676 | defsubr (&Sminibuffer_contents); | |
2677 | defsubr (&Sminibuffer_contents_no_properties); | |
2678 | defsubr (&Sdelete_minibuffer_contents); | |
2679 | ||
f927c5ae JB |
2680 | defsubr (&Stry_completion); |
2681 | defsubr (&Sall_completions); | |
695deb18 SM |
2682 | defsubr (&Stest_completion); |
2683 | defsubr (&Sassoc_string); | |
f927c5ae JB |
2684 | defsubr (&Scompleting_read); |
2685 | defsubr (&Sminibuffer_complete); | |
2686 | defsubr (&Sminibuffer_complete_word); | |
2687 | defsubr (&Sminibuffer_complete_and_exit); | |
2688 | defsubr (&Sdisplay_completion_list); | |
2689 | defsubr (&Sminibuffer_completion_help); | |
2690 | ||
2691 | defsubr (&Sself_insert_and_exit); | |
2692 | defsubr (&Sexit_minibuffer); | |
2693 | ||
2d955a50 | 2694 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2695 | } |
2696 | ||
9d815fd9 | 2697 | void |
f927c5ae JB |
2698 | keys_of_minibuf () |
2699 | { | |
2700 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2701 | "abort-recursive-edit"); | |
2702 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2703 | "exit-minibuffer"); | |
2704 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2705 | "exit-minibuffer"); | |
2706 | ||
f927c5ae JB |
2707 | initial_define_key (Vminibuffer_local_ns_map, ' ', |
2708 | "exit-minibuffer"); | |
2709 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2710 | "exit-minibuffer"); | |
2711 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2712 | "self-insert-and-exit"); | |
2713 | ||
f927c5ae JB |
2714 | initial_define_key (Vminibuffer_local_completion_map, '\t', |
2715 | "minibuffer-complete"); | |
2716 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2717 | "minibuffer-complete-word"); | |
2718 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2719 | "minibuffer-completion-help"); | |
2720 | ||
f927c5ae JB |
2721 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), |
2722 | "minibuffer-complete-and-exit"); | |
2723 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2724 | "minibuffer-complete-and-exit"); | |
f927c5ae | 2725 | } |
ab5796a9 MB |
2726 | |
2727 | /* arch-tag: 8f69b601-fba3-484c-a6dd-ceaee54a7a73 | |
2728 | (do not change this comment) */ |