Commit | Line | Data |
---|---|---|
f927c5ae | 1 | /* Minibuffer input and completion. |
526a058f | 2 | Copyright (C) 1985, 1986, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
1a9e275b | 3 | 2000, 2001, 2003 Free Software Foundation, Inc. |
f927c5ae JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ffd56f97 | 9 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
f927c5ae JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
3f708f4c | 24 | #include <stdio.h> |
af52c32d | 25 | |
f927c5ae JB |
26 | #include "lisp.h" |
27 | #include "commands.h" | |
28 | #include "buffer.h" | |
d50a3d2a | 29 | #include "charset.h" |
f927c5ae | 30 | #include "dispextern.h" |
2538fae4 | 31 | #include "keyboard.h" |
ff11dfa1 | 32 | #include "frame.h" |
f927c5ae JB |
33 | #include "window.h" |
34 | #include "syntax.h" | |
0c21eeeb | 35 | #include "intervals.h" |
8feddab4 | 36 | #include "keymap.h" |
f927c5ae | 37 | |
a4e71d81 KH |
38 | extern int quit_char; |
39 | ||
f927c5ae | 40 | /* List of buffers for use as minibuffers. |
4d04c1f1 KH |
41 | The first element of the list is used for the outermost minibuffer |
42 | invocation, the next element is used for a recursive minibuffer | |
43 | invocation, etc. The list is extended at the end as deeper | |
44 | minibuffer recursions are encountered. */ | |
279cf52c | 45 | |
f927c5ae JB |
46 | Lisp_Object Vminibuffer_list; |
47 | ||
4d04c1f1 | 48 | /* Data to remember during recursive minibuffer invocations */ |
279cf52c | 49 | |
4d04c1f1 | 50 | Lisp_Object minibuf_save_list; |
f927c5ae JB |
51 | |
52 | /* Depth in minibuffer invocations. */ | |
279cf52c | 53 | |
f927c5ae JB |
54 | int minibuf_level; |
55 | ||
77aa8edf | 56 | /* Nonzero means display completion help for invalid input. */ |
279cf52c | 57 | |
739cc391 | 58 | Lisp_Object Vcompletion_auto_help; |
f927c5ae | 59 | |
77aa8edf | 60 | /* The maximum length of a minibuffer history. */ |
279cf52c | 61 | |
77aa8edf RS |
62 | Lisp_Object Qhistory_length, Vhistory_length; |
63 | ||
b278606c | 64 | /* Fread_minibuffer leaves the input here as a string. */ |
279cf52c | 65 | |
f927c5ae JB |
66 | Lisp_Object last_minibuf_string; |
67 | ||
9ab4a725 | 68 | /* Nonzero means let functions called when within a minibuffer |
f927c5ae | 69 | invoke recursive minibuffers (to read arguments, or whatever) */ |
279cf52c | 70 | |
f927c5ae JB |
71 | int enable_recursive_minibuffers; |
72 | ||
c3421833 RS |
73 | /* Nonzero means don't ignore text properties |
74 | in Fread_from_minibuffer. */ | |
279cf52c | 75 | |
c3421833 RS |
76 | int minibuffer_allow_text_properties; |
77 | ||
f927c5ae JB |
78 | /* help-form is bound to this while in the minibuffer. */ |
79 | ||
80 | Lisp_Object Vminibuffer_help_form; | |
81 | ||
770970cb RS |
82 | /* Variable which is the history list to add minibuffer values to. */ |
83 | ||
84 | Lisp_Object Vminibuffer_history_variable; | |
85 | ||
86 | /* Current position in the history list (adjusted by M-n and M-p). */ | |
87 | ||
88 | Lisp_Object Vminibuffer_history_position; | |
89 | ||
cc64f5c9 MB |
90 | /* Text properties that are added to minibuffer prompts. |
91 | These are in addition to the basic `field' property, and stickiness | |
92 | properties. */ | |
93 | ||
94 | Lisp_Object Vminibuffer_prompt_properties; | |
95 | ||
406e55df | 96 | Lisp_Object Qminibuffer_history, Qbuffer_name_history; |
770970cb | 97 | |
719b4a40 RS |
98 | Lisp_Object Qread_file_name_internal; |
99 | ||
177aecf9 | 100 | /* Normal hooks for entry to and exit from minibuffer. */ |
5c781212 RS |
101 | |
102 | Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook; | |
177aecf9 | 103 | Lisp_Object Qminibuffer_exit_hook, Vminibuffer_exit_hook; |
5c781212 | 104 | |
eebbfb01 | 105 | /* Function to call to read a buffer name. */ |
9ab4a725 | 106 | Lisp_Object Vread_buffer_function; |
eebbfb01 | 107 | |
f927c5ae JB |
108 | /* Nonzero means completion ignores case. */ |
109 | ||
110 | int completion_ignore_case; | |
111 | ||
42006772 RS |
112 | /* List of regexps that should restrict possible completions. */ |
113 | ||
114 | Lisp_Object Vcompletion_regexp_list; | |
115 | ||
6a9ee000 RS |
116 | /* Nonzero means raise the minibuffer frame when the minibuffer |
117 | is entered. */ | |
118 | ||
119 | int minibuffer_auto_raise; | |
120 | ||
f927c5ae JB |
121 | /* If last completion attempt reported "Complete but not unique" |
122 | then this is the string completed then; otherwise this is nil. */ | |
123 | ||
124 | static Lisp_Object last_exact_completion; | |
125 | ||
30e13e56 | 126 | extern Lisp_Object Voverriding_local_map; |
cee54539 | 127 | |
5744fa7c RS |
128 | Lisp_Object Quser_variable_p; |
129 | ||
130 | Lisp_Object Qminibuffer_default; | |
131 | ||
cee54539 KH |
132 | Lisp_Object Qcurrent_input_method, Qactivate_input_method; |
133 | ||
5744fa7c | 134 | extern Lisp_Object Qmouse_face; |
279cf52c | 135 | |
8e9968c6 | 136 | extern Lisp_Object Qfield; |
f927c5ae | 137 | \f |
89fdc4a0 KH |
138 | /* Put minibuf on currently selected frame's minibuffer. |
139 | We do this whenever the user starts a new minibuffer | |
140 | or when a minibuffer exits. */ | |
141 | ||
142 | void | |
143 | choose_minibuf_frame () | |
144 | { | |
a4aafc54 GM |
145 | if (FRAMEP (selected_frame) |
146 | && FRAME_LIVE_P (XFRAME (selected_frame)) | |
147 | && !EQ (minibuf_window, XFRAME (selected_frame)->minibuffer_window)) | |
89fdc4a0 | 148 | { |
a4aafc54 GM |
149 | struct frame *sf = XFRAME (selected_frame); |
150 | Lisp_Object buffer; | |
9ab4a725 | 151 | |
89fdc4a0 KH |
152 | /* I don't think that any frames may validly have a null minibuffer |
153 | window anymore. */ | |
a4aafc54 | 154 | if (NILP (sf->minibuffer_window)) |
89fdc4a0 KH |
155 | abort (); |
156 | ||
a4aafc54 GM |
157 | /* Under X, we come here with minibuf_window being the |
158 | minibuffer window of the unused termcap window created in | |
159 | init_window_once. That window doesn't have a buffer. */ | |
160 | buffer = XWINDOW (minibuf_window)->buffer; | |
161 | if (BUFFERP (buffer)) | |
162 | Fset_window_buffer (sf->minibuffer_window, buffer); | |
163 | minibuf_window = sf->minibuffer_window; | |
89fdc4a0 | 164 | } |
914860c2 RS |
165 | |
166 | /* Make sure no other frame has a minibuffer as its selected window, | |
167 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
168 | confusing. Only allow the selected frame to do this, |
169 | and that only if the minibuffer is active. */ | |
914860c2 RS |
170 | { |
171 | Lisp_Object tail, frame; | |
172 | ||
173 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 | 174 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
a4aafc54 | 175 | && !(EQ (frame, selected_frame) |
07d402c8 | 176 | && minibuf_level > 0)) |
914860c2 RS |
177 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
178 | } | |
89fdc4a0 | 179 | } |
68313ed8 | 180 | |
0c94f256 RS |
181 | Lisp_Object |
182 | choose_minibuf_frame_1 (ignore) | |
183 | Lisp_Object ignore; | |
184 | { | |
185 | choose_minibuf_frame (); | |
186 | return Qnil; | |
187 | } | |
188 | ||
68313ed8 RS |
189 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
190 | Sset_minibuffer_window, 1, 1, 0, | |
af52c32d | 191 | doc: /* Specify which minibuffer window to use for the minibuffer. |
a1f17501 | 192 | This effects where the minibuffer is displayed if you put text in it |
af52c32d MB |
193 | without invoking the usual minibuffer commands. */) |
194 | (window) | |
68313ed8 RS |
195 | Lisp_Object window; |
196 | { | |
b7826503 | 197 | CHECK_WINDOW (window); |
68313ed8 RS |
198 | if (! MINI_WINDOW_P (XWINDOW (window))) |
199 | error ("Window is not a minibuffer window"); | |
200 | ||
201 | minibuf_window = window; | |
202 | ||
203 | return window; | |
204 | } | |
205 | ||
89fdc4a0 | 206 | \f |
f927c5ae JB |
207 | /* Actual minibuffer invocation. */ |
208 | ||
af2b7cd5 RS |
209 | static Lisp_Object read_minibuf_unwind P_ ((Lisp_Object)); |
210 | static Lisp_Object read_minibuf P_ ((Lisp_Object, Lisp_Object, | |
211 | Lisp_Object, Lisp_Object, | |
212 | int, Lisp_Object, | |
213 | Lisp_Object, Lisp_Object, | |
214 | int, int)); | |
edfef199 GM |
215 | static Lisp_Object read_minibuf_noninteractive P_ ((Lisp_Object, Lisp_Object, |
216 | Lisp_Object, Lisp_Object, | |
217 | int, Lisp_Object, | |
218 | Lisp_Object, Lisp_Object, | |
219 | int, int)); | |
220 | static Lisp_Object string_to_object P_ ((Lisp_Object, Lisp_Object)); | |
221 | ||
222 | ||
223 | /* Read a Lisp object from VAL and return it. If VAL is an empty | |
224 | string, and DEFALT is a string, read from DEFALT instead of VAL. */ | |
225 | ||
226 | static Lisp_Object | |
227 | string_to_object (val, defalt) | |
228 | Lisp_Object val, defalt; | |
229 | { | |
230 | struct gcpro gcpro1, gcpro2; | |
231 | Lisp_Object expr_and_pos; | |
232 | int pos; | |
9ab4a725 | 233 | |
edfef199 | 234 | GCPRO2 (val, defalt); |
9ab4a725 | 235 | |
d5db4077 | 236 | if (STRINGP (val) && SCHARS (val) == 0 |
edfef199 GM |
237 | && STRINGP (defalt)) |
238 | val = defalt; | |
9ab4a725 | 239 | |
edfef199 GM |
240 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); |
241 | pos = XINT (Fcdr (expr_and_pos)); | |
d5db4077 | 242 | if (pos != SCHARS (val)) |
edfef199 GM |
243 | { |
244 | /* Ignore trailing whitespace; any other trailing junk | |
245 | is an error. */ | |
246 | int i; | |
247 | pos = string_char_to_byte (val, pos); | |
d5db4077 | 248 | for (i = pos; i < SBYTES (val); i++) |
edfef199 | 249 | { |
d5db4077 | 250 | int c = SREF (val, i); |
edfef199 GM |
251 | if (c != ' ' && c != '\t' && c != '\n') |
252 | error ("Trailing garbage following expression"); | |
253 | } | |
254 | } | |
9ab4a725 | 255 | |
edfef199 GM |
256 | val = Fcar (expr_and_pos); |
257 | RETURN_UNGCPRO (val); | |
258 | } | |
259 | ||
260 | ||
261 | /* Like read_minibuf but reading from stdin. This function is called | |
262 | from read_minibuf to do the job if noninteractive. */ | |
263 | ||
264 | static Lisp_Object | |
265 | read_minibuf_noninteractive (map, initial, prompt, backup_n, expflag, | |
266 | histvar, histpos, defalt, allow_props, | |
267 | inherit_input_method) | |
268 | Lisp_Object map; | |
269 | Lisp_Object initial; | |
270 | Lisp_Object prompt; | |
271 | Lisp_Object backup_n; | |
272 | int expflag; | |
273 | Lisp_Object histvar; | |
274 | Lisp_Object histpos; | |
275 | Lisp_Object defalt; | |
276 | int allow_props; | |
277 | int inherit_input_method; | |
278 | { | |
279 | int size, len; | |
280 | char *line, *s; | |
edfef199 GM |
281 | Lisp_Object val; |
282 | ||
d5db4077 | 283 | fprintf (stdout, "%s", SDATA (prompt)); |
edfef199 GM |
284 | fflush (stdout); |
285 | ||
6bbd7a29 | 286 | val = Qnil; |
edfef199 GM |
287 | size = 100; |
288 | len = 0; | |
289 | line = (char *) xmalloc (size * sizeof *line); | |
290 | while ((s = fgets (line + len, size - len, stdin)) != NULL | |
291 | && (len = strlen (line), | |
292 | len == size - 1 && line[len - 1] != '\n')) | |
293 | { | |
294 | size *= 2; | |
295 | line = (char *) xrealloc (line, size); | |
296 | } | |
297 | ||
298 | if (s) | |
299 | { | |
300 | len = strlen (line); | |
9ab4a725 | 301 | |
edfef199 GM |
302 | if (len > 0 && line[len - 1] == '\n') |
303 | line[--len] = '\0'; | |
9ab4a725 | 304 | |
edfef199 GM |
305 | val = build_string (line); |
306 | xfree (line); | |
307 | } | |
308 | else | |
309 | { | |
310 | xfree (line); | |
311 | error ("Error reading from stdin"); | |
312 | } | |
9ab4a725 | 313 | |
edfef199 GM |
314 | /* If Lisp form desired instead of string, parse it. */ |
315 | if (expflag) | |
316 | val = string_to_object (val, defalt); | |
9ab4a725 | 317 | |
edfef199 GM |
318 | return val; |
319 | } | |
1011edb5 | 320 | \f |
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 | |
770970cb | 407 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
a9c26562 | 408 | (a string), putting point minus BACKUP_N bytes from the end of INITIAL, |
770970cb | 409 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 410 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
411 | |
412 | Normally return the result as a string (the text that was read), | |
3ab14176 | 413 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
414 | If HISTVAR is given, save the value read on that history only if it doesn't |
415 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 416 | the list as the string that was read. |
770970cb | 417 | |
c3421833 RS |
418 | DEFALT specifies te default value for the sake of history commands. |
419 | ||
cee54539 KH |
420 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
421 | ||
422 | if INHERIT_INPUT_METHOD is nonzeor, the minibuffer inherit the | |
423 | current input method. */ | |
e5d4686b RS |
424 | |
425 | static Lisp_Object | |
426 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 427 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
428 | Lisp_Object map; |
429 | Lisp_Object initial; | |
430 | Lisp_Object prompt; | |
5061d9c3 | 431 | Lisp_Object backup_n; |
f927c5ae | 432 | int expflag; |
770970cb RS |
433 | Lisp_Object histvar; |
434 | Lisp_Object histpos; | |
e5d4686b | 435 | Lisp_Object defalt; |
af2b7cd5 | 436 | int allow_props; |
cee54539 | 437 | int inherit_input_method; |
f927c5ae | 438 | { |
00a34088 | 439 | Lisp_Object val; |
aed13378 | 440 | int count = SPECPDL_INDEX (); |
cee54539 KH |
441 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
442 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 443 | Lisp_Object enable_multibyte; |
04012254 | 444 | extern Lisp_Object Qfront_sticky; |
fbd1209a | 445 | extern Lisp_Object Qrear_nonsticky; |
00a34088 | 446 | |
e5d4686b RS |
447 | specbind (Qminibuffer_default, defalt); |
448 | ||
08f7d623 | 449 | single_kboard_state (); |
e5baa1a7 | 450 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
451 | if (display_hourglass_p) |
452 | cancel_hourglass (); | |
e5baa1a7 | 453 | #endif |
718d3251 | 454 | |
00a34088 | 455 | val = Qnil; |
57ceaa8a | 456 | ambient_dir = current_buffer->directory; |
cee54539 | 457 | input_method = Qnil; |
c75000c7 | 458 | enable_multibyte = Qnil; |
57ceaa8a | 459 | |
00a34088 RS |
460 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
461 | store them away before we can GC. Don't need to protect | |
462 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 463 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 464 | |
7510b296 | 465 | if (!STRINGP (prompt)) |
695deb18 | 466 | prompt = empty_string; |
f927c5ae | 467 | |
f927c5ae | 468 | if (!enable_recursive_minibuffers |
be15a518 RS |
469 | && minibuf_level > 0) |
470 | { | |
471 | if (EQ (selected_window, minibuf_window)) | |
472 | error ("Command attempted to use minibuffer while in minibuffer"); | |
473 | else | |
474 | /* If we're in another window, cancel the minibuffer that's active. */ | |
475 | Fthrow (Qexit, | |
476 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
477 | } | |
f927c5ae | 478 | |
edfef199 | 479 | if (noninteractive) |
c28b847b GM |
480 | { |
481 | val = read_minibuf_noninteractive (map, initial, prompt, backup_n, | |
482 | expflag, histvar, histpos, defalt, | |
483 | allow_props, inherit_input_method); | |
484 | return unbind_to (count, val); | |
485 | } | |
edfef199 | 486 | |
748dc60a | 487 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 488 | |
c5b6b680 RS |
489 | choose_minibuf_frame (); |
490 | ||
0c94f256 RS |
491 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
492 | ||
f927c5ae | 493 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
494 | Fcurrent_window_configuration (Qnil)); |
495 | ||
ff11dfa1 JB |
496 | /* If the minibuffer window is on a different frame, save that |
497 | frame's configuration too. */ | |
75f00e72 | 498 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
a4aafc54 | 499 | if (!EQ (mini_frame, selected_frame)) |
5061d9c3 RS |
500 | record_unwind_protect (Fset_window_configuration, |
501 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
502 | |
503 | /* If the minibuffer is on an iconified or invisible frame, | |
504 | make it visible now. */ | |
505 | Fmake_frame_visible (mini_frame); | |
506 | ||
6a9ee000 RS |
507 | if (minibuffer_auto_raise) |
508 | Fraise_frame (mini_frame); | |
f927c5ae | 509 | |
748dc60a RS |
510 | /* We have to do this after saving the window configuration |
511 | since that is what restores the current buffer. */ | |
512 | ||
513 | /* Arrange to restore a number of minibuffer-related variables. | |
514 | We could bind each variable separately, but that would use lots of | |
515 | specpdl slots. */ | |
516 | minibuf_save_list | |
517 | = Fcons (Voverriding_local_map, | |
518 | Fcons (minibuf_window, minibuf_save_list)); | |
519 | minibuf_save_list | |
520 | = Fcons (minibuf_prompt, | |
521 | Fcons (make_number (minibuf_prompt_width), | |
522 | Fcons (Vhelp_form, | |
523 | Fcons (Vcurrent_prefix_arg, | |
524 | Fcons (Vminibuffer_history_position, | |
525 | Fcons (Vminibuffer_history_variable, | |
526 | minibuf_save_list)))))); | |
527 | ||
528 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
529 | minibuf_level++; | |
530 | ||
531 | /* Now that we can restore all those variables, start changing them. */ | |
532 | ||
1e3f16d5 | 533 | minibuf_prompt_width = 0; |
748dc60a RS |
534 | minibuf_prompt = Fcopy_sequence (prompt); |
535 | Vminibuffer_history_position = histpos; | |
536 | Vminibuffer_history_variable = histvar; | |
537 | Vhelp_form = Vminibuffer_help_form; | |
538 | ||
cee54539 | 539 | if (inherit_input_method) |
c75000c7 | 540 | { |
fd771ceb | 541 | /* `current-input-method' is buffer local. So, remember it in |
c75000c7 RS |
542 | INPUT_METHOD before changing the current buffer. */ |
543 | input_method = Fsymbol_value (Qcurrent_input_method); | |
544 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
545 | } | |
cee54539 | 546 | |
748dc60a RS |
547 | /* Switch to the minibuffer. */ |
548 | ||
4f69d8f6 RS |
549 | minibuffer = get_minibuffer (minibuf_level); |
550 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
551 | |
552 | /* The current buffer's default directory is usually the right thing | |
553 | for our minibuffer here. However, if you're typing a command at | |
554 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
555 | the current_buffer, so reset_buffer leaves buf's default | |
556 | directory unchanged. This is a bummer when you've just started | |
557 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
558 | you think of something better to do? Find another buffer with a | |
559 | better directory, and use that one instead. */ | |
748dc60a RS |
560 | if (STRINGP (ambient_dir)) |
561 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
562 | else |
563 | { | |
564 | Lisp_Object buf_list; | |
565 | ||
566 | for (buf_list = Vbuffer_alist; | |
567 | CONSP (buf_list); | |
7539e11f | 568 | buf_list = XCDR (buf_list)) |
64a3a3c0 | 569 | { |
1e62748e | 570 | Lisp_Object other_buf; |
64a3a3c0 | 571 | |
7539e11f | 572 | other_buf = XCDR (XCAR (buf_list)); |
7510b296 | 573 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
574 | { |
575 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
576 | break; | |
577 | } | |
578 | } | |
579 | } | |
580 | ||
a4aafc54 GM |
581 | if (!EQ (mini_frame, selected_frame)) |
582 | Fredirect_frame_focus (selected_frame, mini_frame); | |
43bad991 | 583 | |
f927c5ae | 584 | Vminibuf_scroll_window = selected_window; |
6122844a | 585 | if (minibuf_level == 1 || !EQ (minibuf_window, selected_window)) |
5705966b | 586 | minibuf_selected_window = selected_window; |
f927c5ae | 587 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); |
f927c5ae | 588 | Fselect_window (minibuf_window); |
5a866662 | 589 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 590 | |
748dc60a RS |
591 | Fmake_local_variable (Qprint_escape_newlines); |
592 | print_escape_newlines = 1; | |
593 | ||
594 | /* Erase the buffer. */ | |
59115a22 | 595 | { |
331379bf | 596 | int count1 = SPECPDL_INDEX (); |
59115a22 | 597 | specbind (Qinhibit_read_only, Qt); |
a41edd99 | 598 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
599 | Ferase_buffer (); |
600 | unbind_to (count1, Qnil); | |
601 | } | |
602 | ||
279cf52c GM |
603 | if (!NILP (current_buffer->enable_multibyte_characters) |
604 | && ! STRING_MULTIBYTE (minibuf_prompt)) | |
605 | minibuf_prompt = Fstring_make_multibyte (minibuf_prompt); | |
606 | ||
279cf52c GM |
607 | /* Insert the prompt, record where it ends. */ |
608 | Finsert (1, &minibuf_prompt); | |
279cf52c GM |
609 | if (PT > BEG) |
610 | { | |
fbd1209a | 611 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 612 | Qfront_sticky, Qt, Qnil); |
fbd1209a | 613 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 614 | Qrear_nonsticky, Qt, Qnil); |
8e9968c6 GM |
615 | Fput_text_property (make_number (BEG), make_number (PT), |
616 | Qfield, Qt, Qnil); | |
cc64f5c9 MB |
617 | Fadd_text_properties (make_number (BEG), make_number (PT), |
618 | Vminibuffer_prompt_properties, Qnil); | |
279cf52c | 619 | } |
9ab4a725 TTN |
620 | |
621 | minibuf_prompt_width = (int) current_column (); /* iftc */ | |
622 | ||
094d9789 RS |
623 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
624 | if (inherit_input_method) | |
625 | current_buffer->enable_multibyte_characters = enable_multibyte; | |
626 | ||
748dc60a | 627 | /* Put in the initial input. */ |
56a98455 | 628 | if (!NILP (initial)) |
f927c5ae JB |
629 | { |
630 | Finsert (1, &initial); | |
a9c26562 RS |
631 | if (INTEGERP (backup_n)) |
632 | Fforward_char (backup_n); | |
f927c5ae JB |
633 | } |
634 | ||
39e98b38 | 635 | clear_message (1, 1); |
f927c5ae JB |
636 | current_buffer->keymap = map; |
637 | ||
cee54539 | 638 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 639 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
640 | call1 (Qactivate_input_method, input_method); |
641 | ||
5c781212 RS |
642 | /* Run our hook, but not if it is empty. |
643 | (run-hooks would do nothing if it is empty, | |
fd771ceb | 644 | but it's important to save time here in the usual case.) */ |
92d3b06e RS |
645 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
646 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
647 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
648 | ||
4e6b7204 MB |
649 | /* Don't allow the user to undo past this point. */ |
650 | current_buffer->undo_list = Qnil; | |
651 | ||
f927c5ae JB |
652 | recursive_edit_1 (); |
653 | ||
654 | /* If cursor is on the minibuffer line, | |
655 | show the user we have exited by putting it in column 0. */ | |
279cf52c | 656 | if (XWINDOW (minibuf_window)->cursor.vpos >= 0 |
f927c5ae JB |
657 | && !noninteractive) |
658 | { | |
279cf52c GM |
659 | XWINDOW (minibuf_window)->cursor.hpos = 0; |
660 | XWINDOW (minibuf_window)->cursor.x = 0; | |
661 | XWINDOW (minibuf_window)->must_be_updated_p = 1; | |
a4aafc54 | 662 | update_frame (XFRAME (selected_frame), 1, 1); |
337aaf1f GM |
663 | if (rif && rif->flush_display) |
664 | rif->flush_display (XFRAME (XWINDOW (minibuf_window)->frame)); | |
f927c5ae JB |
665 | } |
666 | ||
c3421833 | 667 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 668 | Fset_buffer (minibuffer); |
be95a9b6 | 669 | if (allow_props) |
a346ec72 | 670 | val = Fminibuffer_contents (); |
be95a9b6 | 671 | else |
a346ec72 | 672 | val = Fminibuffer_contents_no_properties (); |
770970cb | 673 | |
b278606c | 674 | /* VAL is the string of minibuffer text. */ |
7019cca7 | 675 | |
b278606c BF |
676 | last_minibuf_string = val; |
677 | ||
3ab14176 | 678 | /* Add the value to the appropriate history list unless it is empty. */ |
d5db4077 | 679 | if (SCHARS (val) != 0 |
c6d65724 | 680 | && SYMBOLP (Vminibuffer_history_variable)) |
3ab14176 KH |
681 | { |
682 | /* If the caller wanted to save the value read on a history list, | |
683 | then do so if the value is not already the front of the list. */ | |
684 | Lisp_Object histval; | |
c6d65724 RS |
685 | |
686 | /* If variable is unbound, make it nil. */ | |
f5c1dd0d | 687 | if (EQ (SYMBOL_VALUE (Vminibuffer_history_variable), Qunbound)) |
c6d65724 RS |
688 | Fset (Vminibuffer_history_variable, Qnil); |
689 | ||
3ab14176 KH |
690 | histval = Fsymbol_value (Vminibuffer_history_variable); |
691 | ||
692 | /* The value of the history variable must be a cons or nil. Other | |
693 | values are unacceptable. We silently ignore these values. */ | |
694 | if (NILP (histval) | |
9f6131cf RS |
695 | || (CONSP (histval) |
696 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
697 | { |
698 | Lisp_Object length; | |
699 | ||
700 | histval = Fcons (last_minibuf_string, histval); | |
701 | Fset (Vminibuffer_history_variable, histval); | |
702 | ||
703 | /* Truncate if requested. */ | |
704 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
705 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
706 | if (INTEGERP (length)) |
707 | { | |
708 | if (XINT (length) <= 0) | |
709 | Fset (Vminibuffer_history_variable, Qnil); | |
710 | else | |
711 | { | |
712 | Lisp_Object temp; | |
713 | ||
714 | temp = Fnthcdr (Fsub1 (length), histval); | |
715 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
716 | } | |
717 | } | |
77aa8edf | 718 | } |
9f6131cf RS |
719 | } |
720 | ||
721 | /* If Lisp form desired instead of string, parse it. */ | |
722 | if (expflag) | |
edfef199 | 723 | val = string_to_object (val, defalt); |
3ab14176 | 724 | |
00a34088 RS |
725 | /* The appropriate frame will get selected |
726 | in set-window-configuration. */ | |
727 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
728 | } |
729 | ||
730 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
731 | depth = 0 is the lowest allowed argument, and that is the value | |
732 | used for nonrecursive minibuffer invocations */ | |
733 | ||
734 | Lisp_Object | |
735 | get_minibuffer (depth) | |
736 | int depth; | |
737 | { | |
738 | Lisp_Object tail, num, buf; | |
9f6c23bc | 739 | char name[24]; |
f927c5ae JB |
740 | extern Lisp_Object nconc2 (); |
741 | ||
5a866662 | 742 | XSETFASTINT (num, depth); |
f927c5ae | 743 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 744 | if (NILP (tail)) |
f927c5ae JB |
745 | { |
746 | tail = Fcons (Qnil, Qnil); | |
747 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
748 | } | |
749 | buf = Fcar (tail); | |
56a98455 | 750 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
751 | { |
752 | sprintf (name, " *Minibuf-%d*", depth); | |
753 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
754 | |
755 | /* Although the buffer's name starts with a space, undo should be | |
756 | enabled in it. */ | |
757 | Fbuffer_enable_undo (buf); | |
758 | ||
f3fbd155 | 759 | XSETCAR (tail, buf); |
f927c5ae JB |
760 | } |
761 | else | |
5956f71d | 762 | { |
aed13378 | 763 | int count = SPECPDL_INDEX (); |
6b3faad8 | 764 | |
5956f71d | 765 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
766 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
767 | Fset_buffer (buf); | |
768 | Fkill_all_local_variables (); | |
769 | unbind_to (count, Qnil); | |
5956f71d | 770 | } |
64a3a3c0 | 771 | |
f927c5ae JB |
772 | return buf; |
773 | } | |
774 | ||
279cf52c GM |
775 | /* This function is called on exiting minibuffer, whether normally or |
776 | not, and it restores the current window, buffer, etc. */ | |
f927c5ae | 777 | |
9d815fd9 | 778 | static Lisp_Object |
43bad991 JB |
779 | read_minibuf_unwind (data) |
780 | Lisp_Object data; | |
f927c5ae | 781 | { |
c24e1160 | 782 | Lisp_Object old_deactivate_mark; |
59115a22 | 783 | Lisp_Object window; |
c24e1160 | 784 | |
0a1dd1c5 RS |
785 | /* We are exiting the minibuffer one way or the other, |
786 | so run the hook. */ | |
787 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
788 | && !NILP (Vrun_hooks)) | |
060ffec1 | 789 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 790 | |
f927c5ae | 791 | /* If this was a recursive minibuffer, |
59115a22 | 792 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 793 | minibuf_level--; |
f927c5ae | 794 | |
59115a22 | 795 | window = minibuf_window; |
279cf52c GM |
796 | /* To keep things predictable, in case it matters, let's be in the |
797 | minibuffer when we reset the relevant variables. */ | |
59115a22 RS |
798 | Fset_buffer (XWINDOW (window)->buffer); |
799 | ||
800 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
801 | minibuf_prompt = Fcar (minibuf_save_list); |
802 | minibuf_save_list = Fcdr (minibuf_save_list); | |
803 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
804 | minibuf_save_list = Fcdr (minibuf_save_list); | |
805 | Vhelp_form = Fcar (minibuf_save_list); | |
806 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 807 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
808 | minibuf_save_list = Fcdr (minibuf_save_list); |
809 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
810 | minibuf_save_list = Fcdr (minibuf_save_list); | |
811 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
812 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 813 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 814 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
815 | #if 0 |
816 | temp = Fcar (minibuf_save_list); | |
817 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
818 | minibuf_window = temp; | |
819 | #endif | |
30e13e56 | 820 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
821 | |
822 | /* Erase the minibuffer we were using at this level. */ | |
823 | { | |
aed13378 | 824 | int count = SPECPDL_INDEX (); |
59115a22 RS |
825 | /* Prevent error in erase-buffer. */ |
826 | specbind (Qinhibit_read_only, Qt); | |
bd819d14 | 827 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
828 | old_deactivate_mark = Vdeactivate_mark; |
829 | Ferase_buffer (); | |
830 | Vdeactivate_mark = old_deactivate_mark; | |
831 | unbind_to (count, Qnil); | |
832 | } | |
833 | ||
544e358d GM |
834 | /* When we get to the outmost level, make sure we resize the |
835 | mini-window back to its normal size. */ | |
836 | if (minibuf_level == 0) | |
1e3f16d5 | 837 | resize_mini_window (XWINDOW (window), 0); |
544e358d | 838 | |
59115a22 RS |
839 | /* Make sure minibuffer window is erased, not ignored. */ |
840 | windows_or_buffers_changed++; | |
841 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 842 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 | 843 | return Qnil; |
f927c5ae JB |
844 | } |
845 | \f | |
b9d721de | 846 | |
cee54539 | 847 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
af52c32d | 848 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 PJ |
849 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string |
850 | to be inserted into the minibuffer before reading input. | |
851 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input | |
852 | is STRING, but point is placed at position POSITION in the minibuffer. | |
853 | Third arg KEYMAP is a keymap to use whilst reading; | |
854 | if omitted or nil, the default is `minibuffer-local-map'. | |
fd771ceb | 855 | If fourth arg READ is non-nil, then interpret the result as a Lisp object |
a1f17501 PJ |
856 | and return that object: |
857 | in other words, do `(car (read-from-string INPUT-STRING))' | |
858 | Fifth arg HIST, if non-nil, specifies a history list | |
859 | and optionally the initial position in the list. | |
860 | It can be a symbol, which is the history list variable to use, | |
861 | or it can be a cons cell (HISTVAR . HISTPOS). | |
862 | In that case, HISTVAR is the history list variable to use, | |
863 | and HISTPOS is the initial position (the position in the list | |
864 | which INITIAL-CONTENTS corresponds to). | |
865 | Positions are counted starting from 1 at the beginning of the list. | |
866 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is available | |
867 | for history commands; but `read-from-minibuffer' does NOT return DEFAULT-VALUE | |
868 | if the user enters empty input! It returns the empty string. | |
869 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 870 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
871 | If the variable `minibuffer-allow-text-properties' is non-nil, |
872 | then the string which is returned includes whatever text properties | |
af52c32d MB |
873 | were present in the minibuffer. Otherwise the value has no text properties. */) |
874 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
e5d4686b | 875 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 876 | Lisp_Object inherit_input_method; |
f927c5ae JB |
877 | { |
878 | int pos = 0; | |
e5d4686b | 879 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
880 | struct gcpro gcpro1; |
881 | ||
770970cb | 882 | position = Qnil; |
f927c5ae | 883 | |
b7826503 | 884 | CHECK_STRING (prompt); |
68e5a8a2 | 885 | if (!NILP (initial_contents)) |
f927c5ae | 886 | { |
7510b296 | 887 | if (CONSP (initial_contents)) |
770970cb | 888 | { |
68e5a8a2 RS |
889 | position = Fcdr (initial_contents); |
890 | initial_contents = Fcar (initial_contents); | |
770970cb | 891 | } |
b7826503 | 892 | CHECK_STRING (initial_contents); |
56a98455 | 893 | if (!NILP (position)) |
f927c5ae | 894 | { |
b7826503 | 895 | CHECK_NUMBER (position); |
f927c5ae | 896 | /* Convert to distance from end of input. */ |
18fef111 RS |
897 | if (XINT (position) < 1) |
898 | /* A number too small means the beginning of the string. */ | |
d5db4077 | 899 | pos = - SCHARS (initial_contents); |
18fef111 | 900 | else |
d5db4077 | 901 | pos = XINT (position) - 1 - SCHARS (initial_contents); |
f927c5ae JB |
902 | } |
903 | } | |
904 | ||
56a98455 | 905 | if (NILP (keymap)) |
f927c5ae JB |
906 | keymap = Vminibuffer_local_map; |
907 | else | |
02067692 | 908 | keymap = get_keymap (keymap, 1, 0); |
770970cb | 909 | |
7510b296 | 910 | if (SYMBOLP (hist)) |
770970cb RS |
911 | { |
912 | histvar = hist; | |
913 | histpos = Qnil; | |
914 | } | |
915 | else | |
916 | { | |
917 | histvar = Fcar_safe (hist); | |
918 | histpos = Fcdr_safe (hist); | |
919 | } | |
920 | if (NILP (histvar)) | |
921 | histvar = Qminibuffer_history; | |
922 | if (NILP (histpos)) | |
5a866662 | 923 | XSETFASTINT (histpos, 0); |
770970cb | 924 | |
1d8d92f4 | 925 | GCPRO1 (default_value); |
e5d4686b RS |
926 | val = read_minibuf (keymap, initial_contents, prompt, |
927 | make_number (pos), !NILP (read), | |
c3421833 | 928 | histvar, histpos, default_value, |
cee54539 KH |
929 | minibuffer_allow_text_properties, |
930 | !NILP (inherit_input_method)); | |
1d8d92f4 | 931 | UNGCPRO; |
e5d4686b | 932 | return val; |
f927c5ae JB |
933 | } |
934 | ||
935 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
af52c32d | 936 | doc: /* Return a Lisp object read using the minibuffer. |
a1f17501 | 937 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
af52c32d MB |
938 | is a string to insert in the minibuffer before reading. */) |
939 | (prompt, initial_contents) | |
f927c5ae JB |
940 | Lisp_Object prompt, initial_contents; |
941 | { | |
b7826503 | 942 | CHECK_STRING (prompt); |
56a98455 | 943 | if (!NILP (initial_contents)) |
b7826503 | 944 | CHECK_STRING (initial_contents); |
770970cb | 945 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 946 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 947 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
948 | } |
949 | ||
950 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
af52c32d | 951 | doc: /* Return value of Lisp expression read using the minibuffer. |
a1f17501 | 952 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
af52c32d MB |
953 | is a string to insert in the minibuffer before reading. */) |
954 | (prompt, initial_contents) | |
f927c5ae JB |
955 | Lisp_Object prompt, initial_contents; |
956 | { | |
957 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
958 | } | |
959 | ||
960 | /* Functions that use the minibuffer to read various things. */ | |
961 | ||
cee54539 | 962 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
af52c32d | 963 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 PJ |
964 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading. |
965 | The third arg HISTORY, if non-nil, specifies a history list | |
966 | and optionally the initial position in the list. | |
967 | See `read-from-minibuffer' for details of HISTORY argument. | |
968 | Fourth arg DEFAULT-VALUE is the default value. If non-nil, it is used | |
969 | for history commands, and as the value to return if the user enters | |
970 | the empty string. | |
971 | Fifth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 972 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 973 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 974 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 975 | Lisp_Object inherit_input_method; |
f927c5ae | 976 | { |
b9a86585 RS |
977 | Lisp_Object val; |
978 | val = Fread_from_minibuffer (prompt, initial_input, Qnil, | |
979 | Qnil, history, default_value, | |
980 | inherit_input_method); | |
d5db4077 | 981 | if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (default_value)) |
b9a86585 RS |
982 | val = default_value; |
983 | return val; | |
f927c5ae JB |
984 | } |
985 | ||
cee54539 | 986 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
af52c32d | 987 | doc: /* Read a string from the terminal, not allowing blanks. |
a1f17501 PJ |
988 | Prompt with PROMPT, and provide INITIAL as an initial value of the input string. |
989 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 990 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 991 | (prompt, initial, inherit_input_method) |
c923ccc9 | 992 | Lisp_Object prompt, initial, inherit_input_method; |
f927c5ae | 993 | { |
b7826503 | 994 | CHECK_STRING (prompt); |
c923ccc9 | 995 | if (! NILP (initial)) |
b7826503 | 996 | CHECK_STRING (initial); |
f927c5ae | 997 | |
c923ccc9 | 998 | return read_minibuf (Vminibuffer_local_ns_map, initial, prompt, Qnil, |
cee54539 KH |
999 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
1000 | !NILP (inherit_input_method)); | |
f927c5ae JB |
1001 | } |
1002 | ||
e5d4686b | 1003 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
af52c32d | 1004 | doc: /* Read the name of a command and return as a symbol. |
fd771ceb | 1005 | Prompt with PROMPT. By default, return DEFAULT-VALUE. */) |
af52c32d | 1006 | (prompt, default_value) |
e5d4686b | 1007 | Lisp_Object prompt, default_value; |
f927c5ae | 1008 | { |
7c8d9931 RS |
1009 | Lisp_Object name, default_string; |
1010 | ||
1011 | if (NILP (default_value)) | |
1012 | default_string = Qnil; | |
1013 | else if (SYMBOLP (default_value)) | |
caa4733e | 1014 | default_string = SYMBOL_NAME (default_value); |
7c8d9931 RS |
1015 | else |
1016 | default_string = default_value; | |
9ab4a725 | 1017 | |
7c8d9931 RS |
1018 | name = Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, |
1019 | Qnil, Qnil, default_string, Qnil); | |
1020 | if (NILP (name)) | |
1021 | return name; | |
1022 | return Fintern (name, Qnil); | |
f927c5ae JB |
1023 | } |
1024 | ||
1025 | #ifdef NOTDEF | |
1026 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
af52c32d | 1027 | doc: /* One arg PROMPT, a string. Read the name of a function and return as a symbol. |
fd771ceb | 1028 | Prompt with PROMPT. */) |
af52c32d | 1029 | (prompt) |
f927c5ae JB |
1030 | Lisp_Object prompt; |
1031 | { | |
cee54539 | 1032 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
1033 | Qnil); |
1034 | } | |
1035 | #endif /* NOTDEF */ | |
1036 | ||
e5d4686b | 1037 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
af52c32d | 1038 | doc: /* Read the name of a user variable and return it as a symbol. |
fd771ceb | 1039 | Prompt with PROMPT. By default, return DEFAULT-VALUE. |
316f9bfc | 1040 | A user variable is one for which `user-variable-p' returns non-nil. */) |
af52c32d | 1041 | (prompt, default_value) |
e5d4686b | 1042 | Lisp_Object prompt, default_value; |
f927c5ae | 1043 | { |
7c8d9931 RS |
1044 | Lisp_Object name, default_string; |
1045 | ||
1046 | if (NILP (default_value)) | |
1047 | default_string = Qnil; | |
1048 | else if (SYMBOLP (default_value)) | |
caa4733e | 1049 | default_string = SYMBOL_NAME (default_value); |
7c8d9931 RS |
1050 | else |
1051 | default_string = default_value; | |
9ab4a725 | 1052 | |
7c8d9931 RS |
1053 | name = Fcompleting_read (prompt, Vobarray, |
1054 | Quser_variable_p, Qt, | |
1055 | Qnil, Qnil, default_string, Qnil); | |
1056 | if (NILP (name)) | |
1057 | return name; | |
1058 | return Fintern (name, Qnil); | |
f927c5ae JB |
1059 | } |
1060 | ||
1061 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
fd771ceb PJ |
1062 | doc: /* Read the name of a buffer and return as a string. |
1063 | Prompt with PROMPT. | |
a1f17501 | 1064 | Optional second arg DEF is value to return if user enters an empty line. |
fd771ceb PJ |
1065 | If optional third arg REQUIRE-MATCH is non-nil, |
1066 | only existing buffer names are allowed. */) | |
af52c32d | 1067 | (prompt, def, require_match) |
f927c5ae JB |
1068 | Lisp_Object prompt, def, require_match; |
1069 | { | |
eebbfb01 | 1070 | Lisp_Object args[4]; |
9ab4a725 | 1071 | |
7510b296 | 1072 | if (BUFFERP (def)) |
f927c5ae | 1073 | def = XBUFFER (def)->name; |
eebbfb01 KH |
1074 | |
1075 | if (NILP (Vread_buffer_function)) | |
1076 | { | |
1077 | if (!NILP (def)) | |
1078 | { | |
1079 | args[0] = build_string ("%s(default %s) "); | |
1080 | args[1] = prompt; | |
1081 | args[2] = def; | |
1082 | prompt = Fformat (3, args); | |
1083 | } | |
1084 | ||
1085 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
406e55df RS |
1086 | require_match, Qnil, Qbuffer_name_history, |
1087 | def, Qnil); | |
eebbfb01 KH |
1088 | } |
1089 | else | |
f927c5ae | 1090 | { |
eebbfb01 | 1091 | args[0] = Vread_buffer_function; |
f927c5ae JB |
1092 | args[1] = prompt; |
1093 | args[2] = def; | |
eebbfb01 KH |
1094 | args[3] = require_match; |
1095 | return Ffuncall(4, args); | |
f927c5ae | 1096 | } |
f927c5ae JB |
1097 | } |
1098 | \f | |
ec067ec7 RS |
1099 | static Lisp_Object |
1100 | minibuf_conform_representation (string, basis) | |
1101 | Lisp_Object string, basis; | |
1102 | { | |
1103 | if (STRING_MULTIBYTE (string) == STRING_MULTIBYTE (basis)) | |
1104 | return string; | |
1105 | ||
1106 | if (STRING_MULTIBYTE (string)) | |
1107 | return Fstring_make_unibyte (string); | |
1108 | else | |
1109 | return Fstring_make_multibyte (string); | |
1110 | } | |
1111 | ||
f927c5ae | 1112 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, |
af52c32d | 1113 | doc: /* Return common substring of all completions of STRING in ALIST. |
a1f17501 PJ |
1114 | Each car of each element of ALIST is tested to see if it begins with STRING. |
1115 | All that match are compared together; the longest initial sequence | |
1116 | common to all matches is returned as a string. | |
1117 | If there is no match at all, nil is returned. | |
1118 | For a unique match which is exact, t is returned. | |
1119 | ||
85cd4372 SM |
1120 | If ALIST is a hash-table, all the string keys are the possible matches. |
1121 | If ALIST is an obarray, the names of all symbols in the obarray | |
1122 | are the possible matches. | |
a1f17501 PJ |
1123 | |
1124 | ALIST can also be a function to do the completion itself. | |
1125 | It receives three arguments: the values STRING, PREDICATE and nil. | |
1126 | Whatever it returns becomes the value of `try-completion'. | |
1127 | ||
1128 | If optional third argument PREDICATE is non-nil, | |
1129 | it is used to test each possible match. | |
1130 | The match is a candidate only if PREDICATE returns non-nil. | |
1131 | The argument given to PREDICATE is the alist element | |
85cd4372 SM |
1132 | or the symbol from the obarray. If ALIST is a hash-table, |
1133 | predicate is called with two arguments: the key and the value. | |
a1f17501 | 1134 | Additionally to this predicate, `completion-regexp-list' |
af52c32d MB |
1135 | is used to further constrain the set of candidates. */) |
1136 | (string, alist, predicate) | |
7efd36fc | 1137 | Lisp_Object string, alist, predicate; |
f927c5ae JB |
1138 | { |
1139 | Lisp_Object bestmatch, tail, elt, eltstring; | |
af2b7cd5 | 1140 | /* Size in bytes of BESTMATCH. */ |
6bbd7a29 | 1141 | int bestmatchsize = 0; |
af2b7cd5 | 1142 | /* These are in bytes, too. */ |
f927c5ae | 1143 | int compare, matchsize; |
85cd4372 SM |
1144 | int type = HASH_TABLE_P (alist) ? 3 |
1145 | : VECTORP (alist) ? 2 | |
1146 | : NILP (alist) || (CONSP (alist) | |
1147 | && (!SYMBOLP (XCAR (alist)) | |
1148 | || NILP (XCAR (alist)))); | |
6bbd7a29 | 1149 | int index = 0, obsize = 0; |
f927c5ae JB |
1150 | int matchcount = 0; |
1151 | Lisp_Object bucket, zero, end, tem; | |
1152 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1153 | ||
b7826503 | 1154 | CHECK_STRING (string); |
85cd4372 | 1155 | if (type == 0) |
7efd36fc | 1156 | return call3 (alist, string, predicate, Qnil); |
f927c5ae | 1157 | |
6bbd7a29 | 1158 | bestmatch = bucket = Qnil; |
f927c5ae JB |
1159 | |
1160 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1161 | tail = alist; | |
85cd4372 | 1162 | if (type == 2) |
f927c5ae | 1163 | { |
f927c5ae JB |
1164 | obsize = XVECTOR (alist)->size; |
1165 | bucket = XVECTOR (alist)->contents[index]; | |
1166 | } | |
1167 | ||
1168 | while (1) | |
1169 | { | |
85cd4372 | 1170 | /* Get the next element of the alist, obarray, or hash-table. */ |
f927c5ae JB |
1171 | /* Exit the loop if the elements are all used up. */ |
1172 | /* elt gets the alist element or symbol. | |
1173 | eltstring gets the name to check as a completion. */ | |
1174 | ||
85cd4372 | 1175 | if (type == 1) |
f927c5ae | 1176 | { |
695deb18 | 1177 | if (!CONSP (tail)) |
f927c5ae | 1178 | break; |
695deb18 SM |
1179 | elt = XCAR (tail); |
1180 | eltstring = CONSP (elt) ? XCAR (elt) : elt; | |
1181 | tail = XCDR (tail); | |
f927c5ae | 1182 | } |
85cd4372 | 1183 | else if (type == 2) |
f927c5ae JB |
1184 | { |
1185 | if (XFASTINT (bucket) != 0) | |
1186 | { | |
1187 | elt = bucket; | |
1188 | eltstring = Fsymbol_name (elt); | |
1189 | if (XSYMBOL (bucket)->next) | |
1190 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1191 | else | |
5a866662 | 1192 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1193 | } |
1194 | else if (++index >= obsize) | |
1195 | break; | |
1196 | else | |
1197 | { | |
1198 | bucket = XVECTOR (alist)->contents[index]; | |
1199 | continue; | |
1200 | } | |
1201 | } | |
85cd4372 SM |
1202 | else /* if (type == 3) */ |
1203 | { | |
1204 | while (index < HASH_TABLE_SIZE (XHASH_TABLE (alist)) | |
1205 | && NILP (HASH_HASH (XHASH_TABLE (alist), index))) | |
1206 | index++; | |
1207 | if (index >= HASH_TABLE_SIZE (XHASH_TABLE (alist))) | |
1208 | break; | |
1209 | else | |
1210 | elt = eltstring = HASH_KEY (XHASH_TABLE (alist), index++); | |
1211 | } | |
f927c5ae JB |
1212 | |
1213 | /* Is this element a possible completion? */ | |
1214 | ||
7510b296 | 1215 | if (STRINGP (eltstring) |
d5db4077 | 1216 | && SCHARS (string) <= SCHARS (eltstring) |
69f4ef20 | 1217 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1218 | make_number (SCHARS (string)), |
69f4ef20 RS |
1219 | string, make_number (0), Qnil, |
1220 | completion_ignore_case ?Qt : Qnil), | |
1221 | EQ (Qt, tem))) | |
f927c5ae JB |
1222 | { |
1223 | /* Yes. */ | |
42006772 RS |
1224 | Lisp_Object regexps; |
1225 | Lisp_Object zero; | |
5a866662 | 1226 | XSETFASTINT (zero, 0); |
42006772 RS |
1227 | |
1228 | /* Ignore this element if it fails to match all the regexps. */ | |
1229 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1230 | regexps = XCDR (regexps)) |
42006772 | 1231 | { |
7539e11f | 1232 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1233 | if (NILP (tem)) |
1234 | break; | |
1235 | } | |
1236 | if (CONSP (regexps)) | |
1237 | continue; | |
1238 | ||
f927c5ae JB |
1239 | /* Ignore this element if there is a predicate |
1240 | and the predicate doesn't like it. */ | |
1241 | ||
7efd36fc | 1242 | if (!NILP (predicate)) |
f927c5ae | 1243 | { |
7efd36fc | 1244 | if (EQ (predicate, Qcommandp)) |
c837f4f9 | 1245 | tem = Fcommandp (elt, Qnil); |
f927c5ae JB |
1246 | else |
1247 | { | |
1248 | GCPRO4 (tail, string, eltstring, bestmatch); | |
85cd4372 SM |
1249 | tem = type == 3 |
1250 | ? call2 (predicate, elt, | |
1251 | HASH_VALUE (XHASH_TABLE (alist), index - 1)) | |
1252 | : call1 (predicate, elt); | |
f927c5ae JB |
1253 | UNGCPRO; |
1254 | } | |
56a98455 | 1255 | if (NILP (tem)) continue; |
f927c5ae JB |
1256 | } |
1257 | ||
1258 | /* Update computation of how much all possible completions match */ | |
1259 | ||
56a98455 | 1260 | if (NILP (bestmatch)) |
af2b7cd5 | 1261 | { |
85cd4372 | 1262 | matchcount = 1; |
af2b7cd5 | 1263 | bestmatch = eltstring; |
d5db4077 | 1264 | bestmatchsize = SCHARS (eltstring); |
af2b7cd5 | 1265 | } |
f927c5ae JB |
1266 | else |
1267 | { | |
d5db4077 | 1268 | compare = min (bestmatchsize, SCHARS (eltstring)); |
69f4ef20 RS |
1269 | tem = Fcompare_strings (bestmatch, make_number (0), |
1270 | make_number (compare), | |
1271 | eltstring, make_number (0), | |
1272 | make_number (compare), | |
1273 | completion_ignore_case ? Qt : Qnil); | |
1274 | if (EQ (tem, Qt)) | |
1275 | matchsize = compare; | |
1276 | else if (XINT (tem) < 0) | |
1277 | matchsize = - XINT (tem) - 1; | |
1278 | else | |
1279 | matchsize = XINT (tem) - 1; | |
1280 | ||
52b14ac0 | 1281 | if (matchsize < 0) |
695deb18 | 1282 | /* When can this happen ? -stef */ |
52b14ac0 JB |
1283 | matchsize = compare; |
1284 | if (completion_ignore_case) | |
1285 | { | |
1286 | /* If this is an exact match except for case, | |
1287 | use it as the best match rather than one that is not an | |
1288 | exact match. This way, we get the case pattern | |
1289 | of the actual match. */ | |
d5db4077 KR |
1290 | if ((matchsize == SCHARS (eltstring) |
1291 | && matchsize < SCHARS (bestmatch)) | |
52b14ac0 JB |
1292 | || |
1293 | /* If there is more than one exact match ignoring case, | |
1294 | and one of them is exact including case, | |
1295 | prefer that one. */ | |
1296 | /* If there is no exact match ignoring case, | |
1297 | prefer a match that does not change the case | |
1298 | of the input. */ | |
d5db4077 | 1299 | ((matchsize == SCHARS (eltstring)) |
52b14ac0 | 1300 | == |
d5db4077 | 1301 | (matchsize == SCHARS (bestmatch)) |
69f4ef20 | 1302 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1303 | make_number (SCHARS (string)), |
69f4ef20 RS |
1304 | string, make_number (0), |
1305 | Qnil, | |
1306 | Qnil), | |
1307 | EQ (Qt, tem)) | |
1308 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
d5db4077 | 1309 | make_number (SCHARS (string)), |
69f4ef20 RS |
1310 | string, make_number (0), |
1311 | Qnil, | |
1312 | Qnil), | |
1313 | ! EQ (Qt, tem)))) | |
52b14ac0 JB |
1314 | bestmatch = eltstring; |
1315 | } | |
d5db4077 | 1316 | if (bestmatchsize != SCHARS (eltstring) |
85cd4372 SM |
1317 | || bestmatchsize != matchsize) |
1318 | /* Don't count the same string multiple times. */ | |
1319 | matchcount++; | |
52b14ac0 | 1320 | bestmatchsize = matchsize; |
d5db4077 | 1321 | if (matchsize <= SCHARS (string) |
695deb18 SM |
1322 | && matchcount > 1) |
1323 | /* No need to look any further. */ | |
1324 | break; | |
f927c5ae JB |
1325 | } |
1326 | } | |
1327 | } | |
1328 | ||
56a98455 | 1329 | if (NILP (bestmatch)) |
f927c5ae | 1330 | return Qnil; /* No completions found */ |
52b14ac0 JB |
1331 | /* If we are ignoring case, and there is no exact match, |
1332 | and no additional text was supplied, | |
1333 | don't change the case of what the user typed. */ | |
d5db4077 KR |
1334 | if (completion_ignore_case && bestmatchsize == SCHARS (string) |
1335 | && SCHARS (bestmatch) > bestmatchsize) | |
ec067ec7 | 1336 | return minibuf_conform_representation (string, bestmatch); |
52b14ac0 JB |
1337 | |
1338 | /* Return t if the supplied string is an exact match (counting case); | |
1339 | it does not require any change to be made. */ | |
d5db4077 | 1340 | if (matchcount == 1 && bestmatchsize == SCHARS (string) |
69f4ef20 RS |
1341 | && (tem = Fcompare_strings (bestmatch, make_number (0), |
1342 | make_number (bestmatchsize), | |
1343 | string, make_number (0), | |
1344 | make_number (bestmatchsize), | |
1345 | Qnil), | |
1346 | EQ (Qt, tem))) | |
f927c5ae JB |
1347 | return Qt; |
1348 | ||
5a866662 KH |
1349 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1350 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1351 | return Fsubstring (bestmatch, zero, end); |
1352 | } | |
f927c5ae | 1353 | \f |
89a255dc | 1354 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
af52c32d | 1355 | doc: /* Search for partial matches to STRING in ALIST. |
a1f17501 PJ |
1356 | Each car of each element of ALIST is tested to see if it begins with STRING. |
1357 | The value is a list of all the strings from ALIST that match. | |
1358 | ||
85cd4372 SM |
1359 | If ALIST is a hash-table, all the string keys are the possible matches. |
1360 | If ALIST is an obarray, the names of all symbols in the obarray | |
1361 | are the possible matches. | |
a1f17501 PJ |
1362 | |
1363 | ALIST can also be a function to do the completion itself. | |
1364 | It receives three arguments: the values STRING, PREDICATE and t. | |
1365 | Whatever it returns becomes the value of `all-completions'. | |
1366 | ||
1367 | If optional third argument PREDICATE is non-nil, | |
1368 | it is used to test each possible match. | |
1369 | The match is a candidate only if PREDICATE returns non-nil. | |
1370 | The argument given to PREDICATE is the alist element | |
85cd4372 SM |
1371 | or the symbol from the obarray. If ALIST is a hash-table, |
1372 | predicate is called with two arguments: the key and the value. | |
a1f17501 PJ |
1373 | Additionally to this predicate, `completion-regexp-list' |
1374 | is used to further constrain the set of candidates. | |
1375 | ||
1376 | If the optional fourth argument HIDE-SPACES is non-nil, | |
1377 | strings in ALIST that start with a space | |
af52c32d MB |
1378 | are ignored unless STRING itself starts with a space. */) |
1379 | (string, alist, predicate, hide_spaces) | |
7efd36fc | 1380 | Lisp_Object string, alist, predicate, hide_spaces; |
f927c5ae JB |
1381 | { |
1382 | Lisp_Object tail, elt, eltstring; | |
1383 | Lisp_Object allmatches; | |
85cd4372 SM |
1384 | int type = HASH_TABLE_P (alist) ? 3 |
1385 | : VECTORP (alist) ? 2 | |
1386 | : NILP (alist) || (CONSP (alist) | |
1387 | && (!SYMBOLP (XCAR (alist)) | |
1388 | || NILP (XCAR (alist)))); | |
6bbd7a29 | 1389 | int index = 0, obsize = 0; |
f927c5ae JB |
1390 | Lisp_Object bucket, tem; |
1391 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1392 | ||
b7826503 | 1393 | CHECK_STRING (string); |
85cd4372 SM |
1394 | if (type == 0) |
1395 | return call3 (alist, string, predicate, Qt); | |
6bbd7a29 | 1396 | allmatches = bucket = Qnil; |
f927c5ae JB |
1397 | |
1398 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1399 | tail = alist; | |
85cd4372 | 1400 | if (type == 2) |
f927c5ae | 1401 | { |
f927c5ae JB |
1402 | obsize = XVECTOR (alist)->size; |
1403 | bucket = XVECTOR (alist)->contents[index]; | |
1404 | } | |
1405 | ||
1406 | while (1) | |
1407 | { | |
85cd4372 | 1408 | /* Get the next element of the alist, obarray, or hash-table. */ |
f927c5ae JB |
1409 | /* Exit the loop if the elements are all used up. */ |
1410 | /* elt gets the alist element or symbol. | |
1411 | eltstring gets the name to check as a completion. */ | |
1412 | ||
85cd4372 | 1413 | if (type == 1) |
f927c5ae | 1414 | { |
695deb18 | 1415 | if (!CONSP (tail)) |
f927c5ae | 1416 | break; |
695deb18 SM |
1417 | elt = XCAR (tail); |
1418 | eltstring = CONSP (elt) ? XCAR (elt) : elt; | |
1419 | tail = XCDR (tail); | |
f927c5ae | 1420 | } |
85cd4372 | 1421 | else if (type == 2) |
f927c5ae JB |
1422 | { |
1423 | if (XFASTINT (bucket) != 0) | |
1424 | { | |
1425 | elt = bucket; | |
1426 | eltstring = Fsymbol_name (elt); | |
1427 | if (XSYMBOL (bucket)->next) | |
1428 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1429 | else | |
5a866662 | 1430 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1431 | } |
1432 | else if (++index >= obsize) | |
1433 | break; | |
1434 | else | |
1435 | { | |
1436 | bucket = XVECTOR (alist)->contents[index]; | |
1437 | continue; | |
1438 | } | |
1439 | } | |
85cd4372 SM |
1440 | else /* if (type == 3) */ |
1441 | { | |
1442 | while (index < HASH_TABLE_SIZE (XHASH_TABLE (alist)) | |
1443 | && NILP (HASH_HASH (XHASH_TABLE (alist), index))) | |
1444 | index++; | |
1445 | if (index >= HASH_TABLE_SIZE (XHASH_TABLE (alist))) | |
1446 | break; | |
1447 | else | |
1448 | elt = eltstring = HASH_KEY (XHASH_TABLE (alist), index++); | |
1449 | } | |
f927c5ae JB |
1450 | |
1451 | /* Is this element a possible completion? */ | |
1452 | ||
7510b296 | 1453 | if (STRINGP (eltstring) |
d5db4077 | 1454 | && SCHARS (string) <= SCHARS (eltstring) |
89a255dc | 1455 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 | 1456 | unless the input starts with space. */ |
d5db4077 KR |
1457 | && ((SBYTES (string) > 0 |
1458 | && SREF (string, 0) == ' ') | |
1459 | || SREF (eltstring, 0) != ' ' | |
89a255dc | 1460 | || NILP (hide_spaces)) |
69f4ef20 | 1461 | && (tem = Fcompare_strings (eltstring, make_number (0), |
d5db4077 | 1462 | make_number (SCHARS (string)), |
69f4ef20 | 1463 | string, make_number (0), |
d5db4077 | 1464 | make_number (SCHARS (string)), |
69f4ef20 RS |
1465 | completion_ignore_case ? Qt : Qnil), |
1466 | EQ (Qt, tem))) | |
f927c5ae JB |
1467 | { |
1468 | /* Yes. */ | |
42006772 RS |
1469 | Lisp_Object regexps; |
1470 | Lisp_Object zero; | |
5a866662 | 1471 | XSETFASTINT (zero, 0); |
42006772 RS |
1472 | |
1473 | /* Ignore this element if it fails to match all the regexps. */ | |
1474 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1475 | regexps = XCDR (regexps)) |
42006772 | 1476 | { |
7539e11f | 1477 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1478 | if (NILP (tem)) |
1479 | break; | |
1480 | } | |
1481 | if (CONSP (regexps)) | |
1482 | continue; | |
1483 | ||
f927c5ae JB |
1484 | /* Ignore this element if there is a predicate |
1485 | and the predicate doesn't like it. */ | |
1486 | ||
7efd36fc | 1487 | if (!NILP (predicate)) |
f927c5ae | 1488 | { |
7efd36fc | 1489 | if (EQ (predicate, Qcommandp)) |
c837f4f9 | 1490 | tem = Fcommandp (elt, Qnil); |
f927c5ae JB |
1491 | else |
1492 | { | |
1493 | GCPRO4 (tail, eltstring, allmatches, string); | |
85cd4372 SM |
1494 | tem = type == 3 |
1495 | ? call2 (predicate, elt, | |
1496 | HASH_VALUE (XHASH_TABLE (alist), index - 1)) | |
1497 | : call1 (predicate, elt); | |
f927c5ae JB |
1498 | UNGCPRO; |
1499 | } | |
56a98455 | 1500 | if (NILP (tem)) continue; |
f927c5ae JB |
1501 | } |
1502 | /* Ok => put it on the list. */ | |
1503 | allmatches = Fcons (eltstring, allmatches); | |
1504 | } | |
1505 | } | |
1506 | ||
1507 | return Fnreverse (allmatches); | |
1508 | } | |
1509 | \f | |
1510 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1511 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1512 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
ccf330a6 | 1513 | Lisp_Object Vminibuffer_completing_file_name; |
f927c5ae | 1514 | |
cee54539 | 1515 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
af52c32d | 1516 | doc: /* Read a string in the minibuffer, with completion. |
a1f17501 PJ |
1517 | PROMPT is a string to prompt with; normally it ends in a colon and a space. |
1518 | TABLE is an alist whose elements' cars are strings, or an obarray. | |
1519 | TABLE can also be a function to do the completion itself. | |
1520 | PREDICATE limits completion to a subset of TABLE. | |
1521 | See `try-completion' and `all-completions' for more details | |
1522 | on completion, TABLE, and PREDICATE. | |
1523 | ||
1524 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless | |
1525 | the input is (or completes to) an element of TABLE or is null. | |
345c105f | 1526 | If it is also not t, typing RET does not exit if it does non-null completion. |
a1f17501 PJ |
1527 | If the input is null, `completing-read' returns an empty string, |
1528 | regardless of the value of REQUIRE-MATCH. | |
1529 | ||
1530 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially. | |
1531 | If it is (STRING . POSITION), the initial input | |
1532 | is STRING, but point is placed POSITION characters into the string. | |
345c105f RS |
1533 | This feature is deprecated--it is best to pass nil for INITIAL-INPUT |
1534 | and supply the default value DEF instead. The user can yank the | |
1535 | default value into the minibuffer easily using \\[next-history-element]. | |
9ab4a725 | 1536 | |
a1f17501 PJ |
1537 | HIST, if non-nil, specifies a history list |
1538 | and optionally the initial position in the list. | |
1539 | It can be a symbol, which is the history list variable to use, | |
1540 | or it can be a cons cell (HISTVAR . HISTPOS). | |
1541 | In that case, HISTVAR is the history list variable to use, | |
1542 | and HISTPOS is the initial position (the position in the list | |
1543 | which INITIAL-INPUT corresponds to). | |
1544 | Positions are counted starting from 1 at the beginning of the list. | |
38668f81 RS |
1545 | The variable `history-length' controls the maximum length of a |
1546 | history list. | |
1547 | ||
a1f17501 PJ |
1548 | DEF, if non-nil, is the default value. |
1549 | ||
1550 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits | |
029a305c | 1551 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
1552 | |
1553 | Completion ignores case if the ambient value of | |
af52c32d MB |
1554 | `completion-ignore-case' is non-nil. */) |
1555 | (prompt, table, predicate, require_match, initial_input, hist, def, inherit_input_method) | |
d43f85c2 RS |
1556 | Lisp_Object prompt, table, predicate, require_match, initial_input; |
1557 | Lisp_Object hist, def, inherit_input_method; | |
f927c5ae | 1558 | { |
770970cb | 1559 | Lisp_Object val, histvar, histpos, position; |
d43f85c2 | 1560 | Lisp_Object init; |
770970cb | 1561 | int pos = 0; |
aed13378 | 1562 | int count = SPECPDL_INDEX (); |
0c8ee1a2 RS |
1563 | struct gcpro gcpro1; |
1564 | ||
d43f85c2 | 1565 | init = initial_input; |
0c8ee1a2 RS |
1566 | GCPRO1 (def); |
1567 | ||
f927c5ae | 1568 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1569 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae | 1570 | specbind (Qminibuffer_completion_confirm, |
695deb18 | 1571 | EQ (require_match, Qt) ? Qnil : require_match); |
f927c5ae | 1572 | last_exact_completion = Qnil; |
770970cb RS |
1573 | |
1574 | position = Qnil; | |
1575 | if (!NILP (init)) | |
1576 | { | |
7510b296 | 1577 | if (CONSP (init)) |
770970cb RS |
1578 | { |
1579 | position = Fcdr (init); | |
1580 | init = Fcar (init); | |
1581 | } | |
b7826503 | 1582 | CHECK_STRING (init); |
770970cb RS |
1583 | if (!NILP (position)) |
1584 | { | |
b7826503 | 1585 | CHECK_NUMBER (position); |
770970cb | 1586 | /* Convert to distance from end of input. */ |
d5db4077 | 1587 | pos = XINT (position) - SCHARS (init); |
770970cb RS |
1588 | } |
1589 | } | |
1590 | ||
7510b296 | 1591 | if (SYMBOLP (hist)) |
770970cb RS |
1592 | { |
1593 | histvar = hist; | |
1594 | histpos = Qnil; | |
1595 | } | |
1596 | else | |
1597 | { | |
1598 | histvar = Fcar_safe (hist); | |
1599 | histpos = Fcdr_safe (hist); | |
1600 | } | |
1601 | if (NILP (histvar)) | |
1602 | histvar = Qminibuffer_history; | |
1603 | if (NILP (histpos)) | |
5a866662 | 1604 | XSETFASTINT (histpos, 0); |
770970cb | 1605 | |
56a98455 | 1606 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1607 | ? Vminibuffer_local_completion_map |
1608 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1609 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1610 | histvar, histpos, def, 0, |
1611 | !NILP (inherit_input_method)); | |
b9a86585 | 1612 | |
d5db4077 | 1613 | if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (def)) |
b9a86585 RS |
1614 | val = def; |
1615 | ||
0c8ee1a2 | 1616 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1617 | } |
1618 | \f | |
f927c5ae | 1619 | Lisp_Object Fminibuffer_completion_help (); |
695deb18 | 1620 | Lisp_Object Fassoc_string (); |
5d2ca7ae RS |
1621 | |
1622 | /* Test whether TXT is an exact completion. */ | |
695deb18 SM |
1623 | DEFUN ("test-completion", Ftest_completion, Stest_completion, 2, 3, 0, |
1624 | doc: /* Return non-nil if STRING is a valid completion. | |
1625 | Takes the same arguments as `all-completions' and `try-completion'. | |
1626 | If ALIST is a function, it is called with three arguments: | |
1627 | the values STRING, PREDICATE and `lambda'. */) | |
1628 | (string, alist, predicate) | |
1629 | Lisp_Object string, alist, predicate; | |
5d2ca7ae | 1630 | { |
695deb18 | 1631 | Lisp_Object regexps, tem = Qnil; |
85cd4372 | 1632 | int i = 0; |
5d2ca7ae | 1633 | |
695deb18 SM |
1634 | CHECK_STRING (string); |
1635 | ||
1636 | if ((CONSP (alist) && (!SYMBOLP (XCAR (alist)) || NILP (XCAR (alist)))) | |
1637 | || NILP (alist)) | |
1638 | { | |
1639 | tem = Fassoc_string (string, alist, completion_ignore_case ? Qt : Qnil); | |
85cd4372 | 1640 | if NILP (tem) |
695deb18 SM |
1641 | return Qnil; |
1642 | } | |
1643 | else if (VECTORP (alist)) | |
5d2ca7ae | 1644 | { |
695deb18 SM |
1645 | /* Bypass intern-soft as that loses for nil. */ |
1646 | tem = oblookup (alist, | |
d5db4077 KR |
1647 | SDATA (string), |
1648 | SCHARS (string), | |
1649 | SBYTES (string)); | |
44472c88 | 1650 | if (!SYMBOLP (tem)) |
9404446f | 1651 | { |
695deb18 SM |
1652 | if (STRING_MULTIBYTE (string)) |
1653 | string = Fstring_make_unibyte (string); | |
9404446f | 1654 | else |
695deb18 | 1655 | string = Fstring_make_multibyte (string); |
9404446f RS |
1656 | |
1657 | tem = oblookup (Vminibuffer_completion_table, | |
d5db4077 KR |
1658 | SDATA (string), |
1659 | SCHARS (string), | |
1660 | SBYTES (string)); | |
9404446f RS |
1661 | if (!SYMBOLP (tem)) |
1662 | return Qnil; | |
1663 | } | |
5d2ca7ae | 1664 | } |
85cd4372 SM |
1665 | else if (HASH_TABLE_P (alist)) |
1666 | { | |
1667 | i = hash_lookup (XHASH_TABLE (alist), string, NULL); | |
1668 | if (i >= 0) | |
1669 | tem = HASH_KEY (XHASH_TABLE (alist), i); | |
1670 | else | |
1671 | return Qnil; | |
1672 | } | |
5d2ca7ae | 1673 | else |
695deb18 SM |
1674 | return call3 (alist, string, predicate, Qlambda); |
1675 | ||
1676 | /* Reject this element if it fails to match all the regexps. */ | |
1677 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1678 | regexps = XCDR (regexps)) | |
1679 | { | |
1680 | if (NILP (Fstring_match (XCAR (regexps), | |
1681 | SYMBOLP (tem) ? string : tem, | |
1682 | Qnil))) | |
1683 | return Qnil; | |
1684 | } | |
1685 | ||
1686 | /* Finally, check the predicate. */ | |
1687 | if (!NILP (predicate)) | |
85cd4372 SM |
1688 | return HASH_TABLE_P (alist) |
1689 | ? call2 (predicate, tem, HASH_VALUE (XHASH_TABLE (alist), i)) | |
1690 | : call1 (predicate, tem); | |
695deb18 SM |
1691 | else |
1692 | return Qt; | |
5d2ca7ae | 1693 | } |
f927c5ae JB |
1694 | |
1695 | /* returns: | |
1696 | * 0 no possible completion | |
1697 | * 1 was already an exact and unique completion | |
1698 | * 3 was already an exact completion | |
1699 | * 4 completed to an exact completion | |
1700 | * 5 some completion happened | |
1701 | * 6 no completion happened | |
1702 | */ | |
1703 | int | |
1704 | do_completion () | |
1705 | { | |
0c80756e | 1706 | Lisp_Object completion, string, tem; |
f927c5ae JB |
1707 | int completedp; |
1708 | Lisp_Object last; | |
1e00c2ff | 1709 | struct gcpro gcpro1, gcpro2; |
f927c5ae | 1710 | |
1011edb5 | 1711 | completion = Ftry_completion (minibuffer_completion_contents (), |
8e9968c6 | 1712 | Vminibuffer_completion_table, |
f927c5ae JB |
1713 | Vminibuffer_completion_predicate); |
1714 | last = last_exact_completion; | |
1715 | last_exact_completion = Qnil; | |
1716 | ||
4f9b95e5 KH |
1717 | GCPRO2 (completion, last); |
1718 | ||
56a98455 | 1719 | if (NILP (completion)) |
f927c5ae JB |
1720 | { |
1721 | bitch_at_user (); | |
1722 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1723 | UNGCPRO; |
f927c5ae JB |
1724 | return 0; |
1725 | } | |
1726 | ||
1727 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1728 | { |
1729 | UNGCPRO; | |
1730 | return 1; | |
1731 | } | |
f927c5ae | 1732 | |
1011edb5 | 1733 | string = minibuffer_completion_contents (); |
0c80756e MB |
1734 | |
1735 | /* COMPLETEDP should be true if some completion was done, which | |
1736 | doesn't include simply changing the case of the entered string. | |
1737 | However, for appearance, the string is rewritten if the case | |
1738 | changes. */ | |
1739 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qt); | |
01cce3e7 | 1740 | completedp = !EQ (tem, Qt); |
0c80756e | 1741 | |
7892a68b KH |
1742 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qnil); |
1743 | if (!EQ (tem, Qt)) | |
0c80756e | 1744 | /* Rewrite the user's input. */ |
f927c5ae | 1745 | { |
1011edb5 RS |
1746 | int prompt_end = XINT (Fminibuffer_prompt_end ()); |
1747 | /* Some completion happened */ | |
1748 | ||
1749 | if (! NILP (Vminibuffer_completing_file_name) | |
d5db4077 | 1750 | && SREF (completion, SBYTES (completion) - 1) == '/' |
1011edb5 RS |
1751 | && PT < ZV |
1752 | && FETCH_CHAR (PT_BYTE) == '/') | |
1753 | { | |
1754 | del_range (prompt_end, PT + 1); | |
1755 | } | |
1756 | else | |
1757 | del_range (prompt_end, PT); | |
1758 | ||
f927c5ae | 1759 | Finsert (1, &completion); |
6e69ab8c MB |
1760 | |
1761 | if (! completedp) | |
1762 | /* The case of the string changed, but that's all. We're not | |
1763 | sure whether this is a unique completion or not, so try again | |
1764 | using the real case (this shouldn't recurse again, because | |
1765 | the next time try-completion will return either `t' or the | |
1766 | exact string). */ | |
1767 | { | |
1768 | UNGCPRO; | |
1769 | return do_completion (); | |
1770 | } | |
f927c5ae JB |
1771 | } |
1772 | ||
1773 | /* It did find a match. Do we match some possibility exactly now? */ | |
695deb18 SM |
1774 | tem = Ftest_completion (Fminibuffer_contents (), |
1775 | Vminibuffer_completion_table, | |
1776 | Vminibuffer_completion_predicate); | |
56a98455 | 1777 | if (NILP (tem)) |
1e00c2ff KH |
1778 | { |
1779 | /* not an exact match */ | |
1780 | UNGCPRO; | |
f927c5ae JB |
1781 | if (completedp) |
1782 | return 5; | |
739cc391 | 1783 | else if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1784 | Fminibuffer_completion_help (); |
1785 | else | |
1786 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1787 | return 6; | |
1788 | } | |
1789 | else if (completedp) | |
1e00c2ff KH |
1790 | { |
1791 | UNGCPRO; | |
1792 | return 4; | |
1793 | } | |
f927c5ae JB |
1794 | /* If the last exact completion and this one were the same, |
1795 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1796 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1797 | last_exact_completion = completion; |
56a98455 | 1798 | if (!NILP (last)) |
f927c5ae | 1799 | { |
1011edb5 | 1800 | tem = minibuffer_completion_contents (); |
56a98455 | 1801 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1802 | Fminibuffer_completion_help (); |
1803 | } | |
1e00c2ff | 1804 | UNGCPRO; |
f927c5ae | 1805 | return 3; |
f927c5ae | 1806 | } |
1e00c2ff | 1807 | |
52b14ac0 JB |
1808 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1809 | ||
695deb18 SM |
1810 | DEFUN ("assoc-string", Fassoc_string, Sassoc_string, 2, 3, 0, |
1811 | doc: /* Like `assoc' but specifically for strings. | |
1812 | Unibyte strings are converted to multibyte for comparison. | |
1813 | And case is ignored if CASE-FOLD is non-nil. | |
1814 | As opposed to `assoc', it will also match an entry consisting of a single | |
1815 | string rather than a cons cell whose car is a string. */) | |
1816 | (key, list, case_fold) | |
52b14ac0 | 1817 | register Lisp_Object key; |
695deb18 | 1818 | Lisp_Object list, case_fold; |
52b14ac0 JB |
1819 | { |
1820 | register Lisp_Object tail; | |
1821 | ||
56a98455 | 1822 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1823 | { |
1824 | register Lisp_Object elt, tem, thiscar; | |
1825 | elt = Fcar (tail); | |
695deb18 | 1826 | thiscar = CONSP (elt) ? XCAR (elt) : elt; |
7510b296 | 1827 | if (!STRINGP (thiscar)) |
52b14ac0 | 1828 | continue; |
9404446f RS |
1829 | tem = Fcompare_strings (thiscar, make_number (0), Qnil, |
1830 | key, make_number (0), Qnil, | |
695deb18 | 1831 | case_fold); |
9404446f RS |
1832 | if (EQ (tem, Qt)) |
1833 | return elt; | |
52b14ac0 JB |
1834 | QUIT; |
1835 | } | |
1836 | return Qnil; | |
1837 | } | |
f927c5ae JB |
1838 | |
1839 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
af52c32d | 1840 | doc: /* Complete the minibuffer contents as far as possible. |
a1f17501 PJ |
1841 | Return nil if there is no valid completion, else t. |
1842 | If no characters can be completed, display a list of possible completions. | |
1843 | If you repeat this command after it displayed such a list, | |
af52c32d MB |
1844 | scroll the window of possible completions. */) |
1845 | () | |
f927c5ae | 1846 | { |
2cb6da5c RS |
1847 | register int i; |
1848 | Lisp_Object window, tem; | |
1849 | ||
df902b62 RS |
1850 | /* If the previous command was not this, |
1851 | mark the completion buffer obsolete. */ | |
1852 | if (! EQ (current_kboard->Vlast_command, Vthis_command)) | |
2cb6da5c RS |
1853 | Vminibuf_scroll_window = Qnil; |
1854 | ||
1855 | window = Vminibuf_scroll_window; | |
1856 | /* If there's a fresh completion window with a live buffer, | |
1857 | and this command is repeated, scroll that window. */ | |
1858 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1859 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1860 | { | |
1861 | struct buffer *obuf = current_buffer; | |
1862 | ||
1863 | Fset_buffer (XWINDOW (window)->buffer); | |
7d7c3861 | 1864 | tem = Fpos_visible_in_window_p (make_number (ZV), window, Qnil); |
2cb6da5c RS |
1865 | if (! NILP (tem)) |
1866 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1867 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1868 | else |
1869 | /* Else scroll down one screen. */ | |
1870 | Fscroll_other_window (Qnil); | |
1871 | ||
1872 | set_buffer_internal (obuf); | |
1873 | return Qnil; | |
1874 | } | |
1875 | ||
1876 | i = do_completion (); | |
f927c5ae JB |
1877 | switch (i) |
1878 | { | |
1879 | case 0: | |
1880 | return Qnil; | |
1881 | ||
1882 | case 1: | |
a1c5aa96 GM |
1883 | if (PT != ZV) |
1884 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1885 | temp_echo_area_glyphs (" [Sole completion]"); |
1886 | break; | |
1887 | ||
1888 | case 3: | |
9994cc69 GM |
1889 | if (PT != ZV) |
1890 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1891 | temp_echo_area_glyphs (" [Complete, but not unique]"); |
1892 | break; | |
1893 | } | |
1894 | ||
1895 | return Qt; | |
1896 | } | |
e4c97a67 RS |
1897 | \f |
1898 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1899 | ||
1900 | /* This one is called by internal_condition_case to do the real work. */ | |
1901 | ||
1902 | Lisp_Object | |
1903 | complete_and_exit_1 () | |
1904 | { | |
1905 | return make_number (do_completion ()); | |
1906 | } | |
1907 | ||
1908 | /* This one is called by internal_condition_case if an error happens. | |
1909 | Pretend the current value is an exact match. */ | |
1910 | ||
1911 | Lisp_Object | |
1912 | complete_and_exit_2 (ignore) | |
1913 | Lisp_Object ignore; | |
1914 | { | |
1915 | return make_number (1); | |
1916 | } | |
f927c5ae JB |
1917 | |
1918 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
94c7167b | 1919 | Sminibuffer_complete_and_exit, 0, 0, "", |
af52c32d | 1920 | doc: /* If the minibuffer contents is a valid completion then exit. |
a1f17501 | 1921 | Otherwise try to complete it. If completion leads to a valid completion, |
af52c32d MB |
1922 | a repetition of this command will exit. */) |
1923 | () | |
f927c5ae JB |
1924 | { |
1925 | register int i; | |
e4c97a67 | 1926 | Lisp_Object val; |
f927c5ae JB |
1927 | |
1928 | /* Allow user to specify null string */ | |
a346ec72 | 1929 | if (XINT (Fminibuffer_prompt_end ()) == ZV) |
f927c5ae JB |
1930 | goto exit; |
1931 | ||
695deb18 SM |
1932 | if (!NILP (Ftest_completion (Fminibuffer_contents (), |
1933 | Vminibuffer_completion_table, | |
1934 | Vminibuffer_completion_predicate))) | |
5d2ca7ae RS |
1935 | goto exit; |
1936 | ||
e4c97a67 | 1937 | /* Call do_completion, but ignore errors. */ |
8db426c7 | 1938 | SET_PT (ZV); |
e4c97a67 RS |
1939 | val = internal_condition_case (complete_and_exit_1, Qerror, |
1940 | complete_and_exit_2); | |
1941 | ||
1942 | i = XFASTINT (val); | |
f927c5ae JB |
1943 | switch (i) |
1944 | { | |
1945 | case 1: | |
1946 | case 3: | |
1947 | goto exit; | |
1948 | ||
1949 | case 4: | |
56a98455 | 1950 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1951 | { |
1952 | temp_echo_area_glyphs (" [Confirm]"); | |
1953 | return Qnil; | |
1954 | } | |
1955 | else | |
1956 | goto exit; | |
1957 | ||
1958 | default: | |
1959 | return Qnil; | |
1960 | } | |
1961 | exit: | |
6bbd7a29 | 1962 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
1963 | /* NOTREACHED */ |
1964 | } | |
1965 | ||
1966 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
94c7167b | 1967 | 0, 0, "", |
af52c32d | 1968 | doc: /* Complete the minibuffer contents at most a single word. |
a1f17501 PJ |
1969 | After one word is completed as much as possible, a space or hyphen |
1970 | is added, provided that matches some possible completion. | |
af52c32d MB |
1971 | Return nil if there is no valid completion, else t. */) |
1972 | () | |
f927c5ae | 1973 | { |
69f4ef20 | 1974 | Lisp_Object completion, tem, tem1; |
af2b7cd5 | 1975 | register int i, i_byte; |
27883fdd | 1976 | register const unsigned char *completion_string; |
d7be4211 | 1977 | struct gcpro gcpro1, gcpro2; |
1011edb5 | 1978 | int prompt_end_charpos = XINT (Fminibuffer_prompt_end ()); |
b278606c BF |
1979 | |
1980 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1981 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae | 1982 | |
1011edb5 | 1983 | completion = Ftry_completion (minibuffer_completion_contents (), |
f927c5ae JB |
1984 | Vminibuffer_completion_table, |
1985 | Vminibuffer_completion_predicate); | |
56a98455 | 1986 | if (NILP (completion)) |
f927c5ae JB |
1987 | { |
1988 | bitch_at_user (); | |
1989 | temp_echo_area_glyphs (" [No match]"); | |
1990 | return Qnil; | |
1991 | } | |
1992 | if (EQ (completion, Qt)) | |
1993 | return Qnil; | |
1994 | ||
b278606c | 1995 | #if 0 /* How the below code used to look, for reference. */ |
a346ec72 | 1996 | tem = Fminibuffer_contents (); |
d5db4077 KR |
1997 | b = SDATA (tem); |
1998 | i = ZV - 1 - SCHARS (completion); | |
1999 | p = SDATA (completion); | |
f927c5ae JB |
2000 | if (i > 0 || |
2001 | 0 <= scmp (b, p, ZV - 1)) | |
2002 | { | |
2003 | i = 1; | |
2004 | /* Set buffer to longest match of buffer tail and completion head. */ | |
2005 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
2006 | i++; | |
2007 | del_range (1, i + 1); | |
2008 | SET_PT (ZV); | |
2009 | } | |
2010 | #else /* Rewritten code */ | |
2011 | { | |
69f4ef20 | 2012 | int buffer_nchars, completion_nchars; |
f927c5ae | 2013 | |
b7826503 | 2014 | CHECK_STRING (completion); |
1011edb5 | 2015 | tem = minibuffer_completion_contents (); |
d7be4211 | 2016 | GCPRO2 (completion, tem); |
719b4a40 RS |
2017 | /* If reading a file name, |
2018 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
ccf330a6 | 2019 | if (! NILP (Vminibuffer_completing_file_name)) |
719b4a40 RS |
2020 | { |
2021 | Lisp_Object substituted; | |
2022 | substituted = Fsubstitute_in_file_name (tem); | |
2023 | if (! EQ (substituted, tem)) | |
2024 | { | |
2025 | tem = substituted; | |
1011edb5 RS |
2026 | del_range (prompt_end_charpos, PT); |
2027 | Finsert (1, &tem); | |
719b4a40 RS |
2028 | } |
2029 | } | |
d5db4077 KR |
2030 | buffer_nchars = SCHARS (tem); /* # chars in what we completed. */ |
2031 | completion_nchars = SCHARS (completion); | |
69f4ef20 RS |
2032 | i = buffer_nchars - completion_nchars; |
2033 | if (i > 0 | |
2034 | || | |
2035 | (tem1 = Fcompare_strings (tem, make_number (0), | |
2036 | make_number (buffer_nchars), | |
2037 | completion, make_number (0), | |
2038 | make_number (buffer_nchars), | |
2039 | completion_ignore_case ? Qt : Qnil), | |
2040 | ! EQ (tem1, Qt))) | |
f927c5ae | 2041 | { |
69f4ef20 RS |
2042 | int start_pos; |
2043 | ||
1011edb5 RS |
2044 | /* Make buffer (before point) contain the longest match |
2045 | of TEM's tail and COMPLETION's head. */ | |
69f4ef20 RS |
2046 | if (i <= 0) i = 1; |
2047 | start_pos= i; | |
2048 | buffer_nchars -= i; | |
669c6673 | 2049 | while (i > 0) |
69f4ef20 | 2050 | { |
669c6673 | 2051 | tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil, |
69f4ef20 RS |
2052 | completion, make_number (0), |
2053 | make_number (buffer_nchars), | |
2054 | completion_ignore_case ? Qt : Qnil); | |
2055 | start_pos++; | |
2056 | if (EQ (tem1, Qt)) | |
2057 | break; | |
2058 | i++; | |
669c6673 | 2059 | buffer_nchars--; |
69f4ef20 RS |
2060 | } |
2061 | del_range (1, i + 1); | |
f927c5ae | 2062 | } |
d7be4211 | 2063 | UNGCPRO; |
f927c5ae JB |
2064 | } |
2065 | #endif /* Rewritten code */ | |
9ab4a725 | 2066 | |
279cf52c | 2067 | { |
8e9968c6 | 2068 | int prompt_end_bytepos; |
279cf52c | 2069 | prompt_end_bytepos = CHAR_TO_BYTE (prompt_end_charpos); |
1011edb5 RS |
2070 | i = PT - prompt_end_charpos; |
2071 | i_byte = PT_BYTE - prompt_end_bytepos; | |
279cf52c | 2072 | } |
f927c5ae JB |
2073 | |
2074 | /* If completion finds next char not unique, | |
b278606c | 2075 | consider adding a space or a hyphen. */ |
d5db4077 | 2076 | if (i == SCHARS (completion)) |
f927c5ae | 2077 | { |
b278606c | 2078 | GCPRO1 (completion); |
1011edb5 RS |
2079 | tem = Ftry_completion (concat2 (minibuffer_completion_contents (), |
2080 | build_string (" ")), | |
f927c5ae JB |
2081 | Vminibuffer_completion_table, |
2082 | Vminibuffer_completion_predicate); | |
b278606c BF |
2083 | UNGCPRO; |
2084 | ||
7510b296 | 2085 | if (STRINGP (tem)) |
f927c5ae JB |
2086 | completion = tem; |
2087 | else | |
2088 | { | |
b278606c BF |
2089 | GCPRO1 (completion); |
2090 | tem = | |
1011edb5 RS |
2091 | Ftry_completion (concat2 (minibuffer_completion_contents (), |
2092 | build_string ("-")), | |
b278606c BF |
2093 | Vminibuffer_completion_table, |
2094 | Vminibuffer_completion_predicate); | |
2095 | UNGCPRO; | |
2096 | ||
7510b296 | 2097 | if (STRINGP (tem)) |
f927c5ae JB |
2098 | completion = tem; |
2099 | } | |
9ab4a725 | 2100 | } |
f927c5ae JB |
2101 | |
2102 | /* Now find first word-break in the stuff found by completion. | |
2103 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
2104 | { |
2105 | int len, c; | |
d5db4077 KR |
2106 | int bytes = SBYTES (completion); |
2107 | completion_string = SDATA (completion); | |
2108 | for (; i_byte < SBYTES (completion); i_byte += len, i++) | |
d50a3d2a | 2109 | { |
af2b7cd5 | 2110 | c = STRING_CHAR_AND_LENGTH (completion_string + i_byte, |
54643b2c | 2111 | bytes - i_byte, |
d50a3d2a KH |
2112 | len); |
2113 | if (SYNTAX (c) != Sword) | |
2114 | { | |
af2b7cd5 RS |
2115 | i_byte += len; |
2116 | i++; | |
d50a3d2a KH |
2117 | break; |
2118 | } | |
2119 | } | |
2120 | } | |
f927c5ae JB |
2121 | |
2122 | /* If got no characters, print help for user. */ | |
2123 | ||
1011edb5 | 2124 | if (i == PT - prompt_end_charpos) |
f927c5ae | 2125 | { |
739cc391 | 2126 | if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
2127 | Fminibuffer_completion_help (); |
2128 | return Qnil; | |
2129 | } | |
2130 | ||
2131 | /* Otherwise insert in minibuffer the chars we got */ | |
2132 | ||
1011edb5 | 2133 | if (! NILP (Vminibuffer_completing_file_name) |
d5db4077 | 2134 | && SREF (completion, SBYTES (completion) - 1) == '/' |
1011edb5 RS |
2135 | && PT < ZV |
2136 | && FETCH_CHAR (PT_BYTE) == '/') | |
2137 | { | |
2138 | del_range (prompt_end_charpos, PT + 1); | |
2139 | } | |
2140 | else | |
2141 | del_range (prompt_end_charpos, PT); | |
2142 | ||
af2b7cd5 | 2143 | insert_from_string (completion, 0, 0, i, i_byte, 1); |
f927c5ae JB |
2144 | return Qt; |
2145 | } | |
2146 | \f | |
2147 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
2148 | 1, 1, 0, | |
af52c32d | 2149 | doc: /* Display the list of completions, COMPLETIONS, using `standard-output'. |
a1f17501 PJ |
2150 | Each element may be just a symbol or string |
2151 | or may be a list of two strings to be printed as if concatenated. | |
2152 | `standard-output' must be a buffer. | |
2153 | The actual completion alternatives, as inserted, are given `mouse-face' | |
2154 | properties of `highlight'. | |
2155 | At the end, this runs the normal hook `completion-setup-hook'. | |
af52c32d MB |
2156 | It can find the completion buffer in `standard-output'. */) |
2157 | (completions) | |
f927c5ae JB |
2158 | Lisp_Object completions; |
2159 | { | |
dae36123 | 2160 | Lisp_Object tail, elt; |
f927c5ae | 2161 | register int i; |
2dc2b736 | 2162 | int column = 0; |
dae36123 | 2163 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 2164 | struct buffer *old = current_buffer; |
681f5af4 | 2165 | int first = 1; |
486cc7fb RS |
2166 | |
2167 | /* Note that (when it matters) every variable | |
dae36123 RS |
2168 | points to a non-string that is pointed to by COMPLETIONS, |
2169 | except for ELT. ELT can be pointing to a string | |
2170 | when terpri or Findent_to calls a change hook. */ | |
2171 | elt = Qnil; | |
2172 | GCPRO2 (completions, elt); | |
486cc7fb | 2173 | |
7510b296 | 2174 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 2175 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 2176 | |
56a98455 | 2177 | if (NILP (completions)) |
cfc736bf RS |
2178 | write_string ("There are no possible completions of what you have typed.", |
2179 | -1); | |
f927c5ae JB |
2180 | else |
2181 | { | |
2dc2b736 | 2182 | write_string ("Possible completions are:", -1); |
56a98455 | 2183 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 2184 | { |
ec067ec7 | 2185 | Lisp_Object tem, string; |
681f5af4 | 2186 | int length; |
47d7d104 | 2187 | Lisp_Object startpos, endpos; |
681f5af4 | 2188 | |
6bbd7a29 GM |
2189 | startpos = Qnil; |
2190 | ||
681f5af4 RS |
2191 | elt = Fcar (tail); |
2192 | /* Compute the length of this element. */ | |
2193 | if (CONSP (elt)) | |
2194 | { | |
49db96ce | 2195 | tem = XCAR (elt); |
b7826503 | 2196 | CHECK_STRING (tem); |
d5db4077 | 2197 | length = SCHARS (tem); |
681f5af4 | 2198 | |
49db96ce | 2199 | tem = Fcar (XCDR (elt)); |
b7826503 | 2200 | CHECK_STRING (tem); |
d5db4077 | 2201 | length += SCHARS (tem); |
681f5af4 RS |
2202 | } |
2203 | else | |
2204 | { | |
b7826503 | 2205 | CHECK_STRING (elt); |
d5db4077 | 2206 | length = SCHARS (elt); |
681f5af4 RS |
2207 | } |
2208 | ||
2209 | /* This does a bad job for narrower than usual windows. | |
2210 | Sadly, the window it will appear in is not known | |
2211 | until after the text has been made. */ | |
2212 | ||
47d7d104 RS |
2213 | if (BUFFERP (Vstandard_output)) |
2214 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2215 | ||
681f5af4 RS |
2216 | /* If the previous completion was very wide, |
2217 | or we have two on this line already, | |
2218 | don't put another on the same line. */ | |
2219 | if (column > 33 || first | |
2220 | /* If this is really wide, don't put it second on a line. */ | |
13c67cc6 | 2221 | || (column > 0 && length > 45)) |
681f5af4 RS |
2222 | { |
2223 | Fterpri (Qnil); | |
2224 | column = 0; | |
2225 | } | |
2226 | /* Otherwise advance to column 35. */ | |
2227 | else | |
2dc2b736 | 2228 | { |
7510b296 | 2229 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
2230 | { |
2231 | tem = Findent_to (make_number (35), make_number (2)); | |
9ab4a725 | 2232 | |
681f5af4 RS |
2233 | column = XINT (tem); |
2234 | } | |
2dc2b736 RS |
2235 | else |
2236 | { | |
2237 | do | |
2238 | { | |
2239 | write_string (" ", -1); | |
2240 | column++; | |
2241 | } | |
2242 | while (column < 35); | |
2243 | } | |
2244 | } | |
681f5af4 | 2245 | |
47d7d104 RS |
2246 | if (BUFFERP (Vstandard_output)) |
2247 | { | |
2248 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2249 | Fset_text_properties (startpos, endpos, | |
2250 | Qnil, Vstandard_output); | |
2251 | } | |
2252 | ||
ec067ec7 | 2253 | /* Output this element. |
9404446f | 2254 | If necessary, convert it to unibyte or to multibyte first. */ |
f927c5ae | 2255 | if (CONSP (elt)) |
ec067ec7 | 2256 | string = Fcar (elt); |
f927c5ae | 2257 | else |
ec067ec7 RS |
2258 | string = elt; |
2259 | if (NILP (current_buffer->enable_multibyte_characters) | |
2260 | && STRING_MULTIBYTE (string)) | |
2261 | string = Fstring_make_unibyte (string); | |
9404446f RS |
2262 | else if (!NILP (current_buffer->enable_multibyte_characters) |
2263 | && !STRING_MULTIBYTE (string)) | |
2264 | string = Fstring_make_multibyte (string); | |
5744fa7c RS |
2265 | |
2266 | if (BUFFERP (Vstandard_output)) | |
2267 | { | |
4b37311e | 2268 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c RS |
2269 | |
2270 | Fprinc (string, Qnil); | |
2271 | ||
4b37311e | 2272 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c | 2273 | |
4b37311e | 2274 | Fput_text_property (startpos, endpos, |
5744fa7c RS |
2275 | Qmouse_face, intern ("highlight"), |
2276 | Vstandard_output); | |
2277 | } | |
2278 | else | |
2279 | { | |
2280 | Fprinc (string, Qnil); | |
2281 | } | |
ec067ec7 RS |
2282 | |
2283 | /* Output the annotation for this element. */ | |
2284 | if (CONSP (elt)) | |
4b37311e RS |
2285 | { |
2286 | if (BUFFERP (Vstandard_output)) | |
2287 | { | |
2288 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2289 | ||
2290 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2291 | ||
2292 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2293 | ||
2294 | Fset_text_properties (startpos, endpos, Qnil, | |
2295 | Vstandard_output); | |
2296 | } | |
2297 | else | |
2298 | { | |
2299 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2300 | } | |
2301 | } | |
2302 | ||
681f5af4 | 2303 | |
ec067ec7 | 2304 | /* Update COLUMN for what we have output. */ |
681f5af4 RS |
2305 | column += length; |
2306 | ||
2307 | /* If output is to a buffer, recompute COLUMN in a way | |
2308 | that takes account of character widths. */ | |
2309 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 2310 | { |
681f5af4 RS |
2311 | tem = Fcurrent_column (); |
2312 | column = XINT (tem); | |
2dc2b736 | 2313 | } |
681f5af4 RS |
2314 | |
2315 | first = 0; | |
f927c5ae JB |
2316 | } |
2317 | } | |
2dc2b736 | 2318 | |
486cc7fb RS |
2319 | UNGCPRO; |
2320 | ||
7510b296 | 2321 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
2322 | set_buffer_internal (old); |
2323 | ||
cfc736bf RS |
2324 | if (!NILP (Vrun_hooks)) |
2325 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
2326 | ||
f927c5ae JB |
2327 | return Qnil; |
2328 | } | |
2329 | ||
2330 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
94c7167b | 2331 | 0, 0, "", |
af52c32d MB |
2332 | doc: /* Display a list of possible completions of the current minibuffer contents. */) |
2333 | () | |
f927c5ae JB |
2334 | { |
2335 | Lisp_Object completions; | |
2336 | ||
2337 | message ("Making completion list..."); | |
1011edb5 | 2338 | completions = Fall_completions (minibuffer_completion_contents (), |
f927c5ae | 2339 | Vminibuffer_completion_table, |
89a255dc RS |
2340 | Vminibuffer_completion_predicate, |
2341 | Qt); | |
39e98b38 | 2342 | clear_message (1, 0); |
f927c5ae | 2343 | |
56a98455 | 2344 | if (NILP (completions)) |
f927c5ae JB |
2345 | { |
2346 | bitch_at_user (); | |
2347 | temp_echo_area_glyphs (" [No completions]"); | |
2348 | } | |
2349 | else | |
2350 | internal_with_output_to_temp_buffer ("*Completions*", | |
2351 | Fdisplay_completion_list, | |
2352 | Fsort (completions, Qstring_lessp)); | |
2353 | return Qnil; | |
2354 | } | |
2355 | \f | |
2356 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
af52c32d MB |
2357 | doc: /* Terminate minibuffer input. */) |
2358 | () | |
f927c5ae | 2359 | { |
7510b296 | 2360 | if (INTEGERP (last_command_char)) |
dab3ab3c | 2361 | internal_self_insert (XINT (last_command_char), 0); |
f927c5ae JB |
2362 | else |
2363 | bitch_at_user (); | |
2364 | ||
6bbd7a29 | 2365 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2366 | } |
2367 | ||
2368 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
af52c32d MB |
2369 | doc: /* Terminate this minibuffer argument. */) |
2370 | () | |
f927c5ae | 2371 | { |
6bbd7a29 | 2372 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2373 | } |
2374 | ||
2375 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
af52c32d MB |
2376 | doc: /* Return current depth of activations of minibuffer, a nonnegative integer. */) |
2377 | () | |
f927c5ae JB |
2378 | { |
2379 | return make_number (minibuf_level); | |
2380 | } | |
2381 | ||
37e9a934 | 2382 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
af52c32d MB |
2383 | doc: /* Return the prompt string of the currently-active minibuffer. |
2384 | If no minibuffer is active, return nil. */) | |
2385 | () | |
37e9a934 | 2386 | { |
4d04c1f1 | 2387 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
2388 | } |
2389 | ||
f927c5ae | 2390 | \f |
2d955a50 RS |
2391 | /* Temporarily display the string M at the end of the current |
2392 | minibuffer contents. This is used to display things like | |
2393 | "[No Match]" when the user requests a completion for a prefix | |
2394 | that has no possible completions, and other quick, unobtrusive | |
2395 | messages. */ | |
2396 | ||
9d815fd9 | 2397 | void |
2d955a50 | 2398 | temp_echo_area_glyphs (m) |
27883fdd | 2399 | const char *m; |
2d955a50 RS |
2400 | { |
2401 | int osize = ZV; | |
a9c26562 | 2402 | int osize_byte = ZV_BYTE; |
2d955a50 | 2403 | int opoint = PT; |
a9c26562 | 2404 | int opoint_byte = PT_BYTE; |
2d955a50 RS |
2405 | Lisp_Object oinhibit; |
2406 | oinhibit = Vinhibit_quit; | |
2407 | ||
2408 | /* Clear out any old echo-area message to make way for our new thing. */ | |
2409 | message (0); | |
2410 | ||
a9c26562 | 2411 | SET_PT_BOTH (osize, osize_byte); |
2d955a50 | 2412 | insert_string (m); |
a9c26562 | 2413 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2414 | Vinhibit_quit = Qt; |
2415 | Fsit_for (make_number (2), Qnil, Qnil); | |
bc69581b | 2416 | del_range_both (osize, osize_byte, ZV, ZV_BYTE, 1); |
a9c26562 | 2417 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2418 | if (!NILP (Vquit_flag)) |
2419 | { | |
2420 | Vquit_flag = Qnil; | |
2421 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
2422 | } | |
2423 | Vinhibit_quit = oinhibit; | |
2424 | } | |
2425 | ||
2426 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
94c7167b | 2427 | 1, 1, 0, |
af52c32d | 2428 | doc: /* Temporarily display STRING at the end of the minibuffer. |
a1f17501 | 2429 | The text is displayed for two seconds, |
af52c32d MB |
2430 | or until the next input event arrives, whichever comes first. */) |
2431 | (string) | |
2d955a50 RS |
2432 | Lisp_Object string; |
2433 | { | |
1a9e275b | 2434 | CHECK_STRING (string); |
d5db4077 | 2435 | temp_echo_area_glyphs (SDATA (string)); |
2d955a50 RS |
2436 | return Qnil; |
2437 | } | |
2438 | \f | |
9d815fd9 | 2439 | void |
f927c5ae JB |
2440 | init_minibuf_once () |
2441 | { | |
2442 | Vminibuffer_list = Qnil; | |
2443 | staticpro (&Vminibuffer_list); | |
2444 | } | |
2445 | ||
9d815fd9 | 2446 | void |
f927c5ae JB |
2447 | syms_of_minibuf () |
2448 | { | |
2449 | minibuf_level = 0; | |
4d04c1f1 KH |
2450 | minibuf_prompt = Qnil; |
2451 | staticpro (&minibuf_prompt); | |
2452 | ||
2453 | minibuf_save_list = Qnil; | |
2454 | staticpro (&minibuf_save_list); | |
f927c5ae | 2455 | |
719b4a40 RS |
2456 | Qread_file_name_internal = intern ("read-file-name-internal"); |
2457 | staticpro (&Qread_file_name_internal); | |
2458 | ||
e5d4686b RS |
2459 | Qminibuffer_default = intern ("minibuffer-default"); |
2460 | staticpro (&Qminibuffer_default); | |
2461 | Fset (Qminibuffer_default, Qnil); | |
2462 | ||
f927c5ae JB |
2463 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
2464 | staticpro (&Qminibuffer_completion_table); | |
2465 | ||
2466 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
2467 | staticpro (&Qminibuffer_completion_confirm); | |
2468 | ||
2469 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
2470 | staticpro (&Qminibuffer_completion_predicate); | |
2471 | ||
1e00c2ff KH |
2472 | staticpro (&last_exact_completion); |
2473 | last_exact_completion = Qnil; | |
2474 | ||
f927c5ae JB |
2475 | staticpro (&last_minibuf_string); |
2476 | last_minibuf_string = Qnil; | |
2477 | ||
2478 | Quser_variable_p = intern ("user-variable-p"); | |
2479 | staticpro (&Quser_variable_p); | |
2480 | ||
770970cb RS |
2481 | Qminibuffer_history = intern ("minibuffer-history"); |
2482 | staticpro (&Qminibuffer_history); | |
f927c5ae | 2483 | |
406e55df RS |
2484 | Qbuffer_name_history = intern ("buffer-name-history"); |
2485 | staticpro (&Qbuffer_name_history); | |
33d0a17f | 2486 | Fset (Qbuffer_name_history, Qnil); |
406e55df | 2487 | |
5c781212 RS |
2488 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
2489 | staticpro (&Qminibuffer_setup_hook); | |
2490 | ||
177aecf9 KH |
2491 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
2492 | staticpro (&Qminibuffer_exit_hook); | |
2493 | ||
77aa8edf RS |
2494 | Qhistory_length = intern ("history-length"); |
2495 | staticpro (&Qhistory_length); | |
2496 | ||
cee54539 KH |
2497 | Qcurrent_input_method = intern ("current-input-method"); |
2498 | staticpro (&Qcurrent_input_method); | |
2499 | ||
2500 | Qactivate_input_method = intern ("activate-input-method"); | |
2501 | staticpro (&Qactivate_input_method); | |
2502 | ||
af52c32d MB |
2503 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2504 | doc: /* If this is non-nil, `read-buffer' does its work by calling this function. */); | |
eebbfb01 KH |
2505 | Vread_buffer_function = Qnil; |
2506 | ||
af52c32d MB |
2507 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2508 | doc: /* Normal hook run just after entry to minibuffer. */); | |
5c781212 RS |
2509 | Vminibuffer_setup_hook = Qnil; |
2510 | ||
af52c32d MB |
2511 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2512 | doc: /* Normal hook run just after exit from minibuffer. */); | |
177aecf9 KH |
2513 | Vminibuffer_exit_hook = Qnil; |
2514 | ||
af52c32d MB |
2515 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2516 | doc: /* *Maximum length for history lists before truncation takes place. | |
a1f17501 PJ |
2517 | A number means that length; t means infinite. Truncation takes place |
2518 | just after a new element is inserted. Setting the history-length | |
2519 | property of a history variable overrides this default. */); | |
77aa8edf RS |
2520 | XSETFASTINT (Vhistory_length, 30); |
2521 | ||
af52c32d MB |
2522 | DEFVAR_LISP ("completion-auto-help", &Vcompletion_auto_help, |
2523 | doc: /* *Non-nil means automatically provide help for invalid completion input. */); | |
739cc391 | 2524 | Vcompletion_auto_help = Qt; |
f927c5ae | 2525 | |
af52c32d MB |
2526 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, |
2527 | doc: /* Non-nil means don't consider case significant in completion. */); | |
f927c5ae JB |
2528 | completion_ignore_case = 0; |
2529 | ||
af52c32d MB |
2530 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, |
2531 | doc: /* *Non-nil means to allow minibuffer commands while in the minibuffer. | |
a1f17501 | 2532 | This variable makes a difference whenever the minibuffer window is active. */); |
f927c5ae JB |
2533 | enable_recursive_minibuffers = 0; |
2534 | ||
af52c32d MB |
2535 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, |
2536 | doc: /* Alist or obarray used for completion in the minibuffer. | |
a1f17501 PJ |
2537 | This becomes the ALIST argument to `try-completion' and `all-completion'. |
2538 | ||
2539 | The value may alternatively be a function, which is given three arguments: | |
2540 | STRING, the current buffer contents; | |
2541 | PREDICATE, the predicate for filtering possible matches; | |
2542 | CODE, which says what kind of things to do. | |
2543 | CODE can be nil, t or `lambda'. | |
2544 | nil means to return the best completion of STRING, or nil if there is none. | |
2545 | t means to return a list of all possible completions of STRING. | |
2546 | `lambda' means to return t if STRING is a valid completion as it stands. */); | |
f927c5ae JB |
2547 | Vminibuffer_completion_table = Qnil; |
2548 | ||
af52c32d MB |
2549 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, |
2550 | doc: /* Within call to `completing-read', this holds the PREDICATE argument. */); | |
f927c5ae JB |
2551 | Vminibuffer_completion_predicate = Qnil; |
2552 | ||
af52c32d | 2553 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, |
fd771ceb | 2554 | doc: /* Non-nil means to demand confirmation of completion before exiting minibuffer. */); |
f927c5ae JB |
2555 | Vminibuffer_completion_confirm = Qnil; |
2556 | ||
ccf330a6 | 2557 | DEFVAR_LISP ("minibuffer-completing-file-name", |
af52c32d MB |
2558 | &Vminibuffer_completing_file_name, |
2559 | doc: /* Non-nil means completing file names. */); | |
ccf330a6 RS |
2560 | Vminibuffer_completing_file_name = Qnil; |
2561 | ||
af52c32d MB |
2562 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, |
2563 | doc: /* Value that `help-form' takes on inside the minibuffer. */); | |
f927c5ae JB |
2564 | Vminibuffer_help_form = Qnil; |
2565 | ||
af52c32d MB |
2566 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2567 | doc: /* History list symbol to add minibuffer values to. | |
a1f17501 PJ |
2568 | Each string of minibuffer input, as it appears on exit from the minibuffer, |
2569 | is added with | |
2570 | (set minibuffer-history-variable | |
2571 | (cons STRING (symbol-value minibuffer-history-variable))) */); | |
5a866662 | 2572 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb | 2573 | |
af52c32d MB |
2574 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, |
2575 | doc: /* Current position of redoing in the history list. */); | |
770970cb RS |
2576 | Vminibuffer_history_position = Qnil; |
2577 | ||
af52c32d MB |
2578 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
2579 | doc: /* *Non-nil means entering the minibuffer raises the minibuffer's frame. | |
a1f17501 | 2580 | Some uses of the echo area also raise that frame (since they use it too). */); |
6a9ee000 RS |
2581 | minibuffer_auto_raise = 0; |
2582 | ||
af52c32d MB |
2583 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2584 | doc: /* List of regexps that should restrict possible completions. */); | |
42006772 RS |
2585 | Vcompletion_regexp_list = Qnil; |
2586 | ||
c3421833 | 2587 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
af52c32d MB |
2588 | &minibuffer_allow_text_properties, |
2589 | doc: /* Non-nil means `read-from-minibuffer' should not discard text properties. | |
a1f17501 PJ |
2590 | This also affects `read-string', but it does not affect `read-minibuffer', |
2591 | `read-no-blanks-input', or any of the functions that do minibuffer input | |
2592 | with completion; they always discard text properties. */); | |
c3421833 RS |
2593 | minibuffer_allow_text_properties = 0; |
2594 | ||
af52c32d MB |
2595 | DEFVAR_LISP ("minibuffer-prompt-properties", &Vminibuffer_prompt_properties, |
2596 | doc: /* Text properties that are added to minibuffer prompts. | |
a1f17501 PJ |
2597 | These are in addition to the basic `field' property, and stickiness |
2598 | properties. */); | |
cc64f5c9 MB |
2599 | /* We use `intern' here instead of Qread_only to avoid |
2600 | initialization-order problems. */ | |
2601 | Vminibuffer_prompt_properties | |
2602 | = Fcons (intern ("read-only"), Fcons (Qt, Qnil)); | |
2603 | ||
68313ed8 | 2604 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2605 | defsubr (&Sread_from_minibuffer); |
2606 | defsubr (&Seval_minibuffer); | |
2607 | defsubr (&Sread_minibuffer); | |
2608 | defsubr (&Sread_string); | |
2609 | defsubr (&Sread_command); | |
2610 | defsubr (&Sread_variable); | |
2611 | defsubr (&Sread_buffer); | |
2612 | defsubr (&Sread_no_blanks_input); | |
2613 | defsubr (&Sminibuffer_depth); | |
37e9a934 | 2614 | defsubr (&Sminibuffer_prompt); |
f927c5ae | 2615 | |
873ef78e | 2616 | defsubr (&Sminibufferp); |
a346ec72 MB |
2617 | defsubr (&Sminibuffer_prompt_end); |
2618 | defsubr (&Sminibuffer_contents); | |
2619 | defsubr (&Sminibuffer_contents_no_properties); | |
2620 | defsubr (&Sdelete_minibuffer_contents); | |
2621 | ||
f927c5ae JB |
2622 | defsubr (&Stry_completion); |
2623 | defsubr (&Sall_completions); | |
695deb18 SM |
2624 | defsubr (&Stest_completion); |
2625 | defsubr (&Sassoc_string); | |
f927c5ae JB |
2626 | defsubr (&Scompleting_read); |
2627 | defsubr (&Sminibuffer_complete); | |
2628 | defsubr (&Sminibuffer_complete_word); | |
2629 | defsubr (&Sminibuffer_complete_and_exit); | |
2630 | defsubr (&Sdisplay_completion_list); | |
2631 | defsubr (&Sminibuffer_completion_help); | |
2632 | ||
2633 | defsubr (&Sself_insert_and_exit); | |
2634 | defsubr (&Sexit_minibuffer); | |
2635 | ||
2d955a50 | 2636 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2637 | } |
2638 | ||
9d815fd9 | 2639 | void |
f927c5ae JB |
2640 | keys_of_minibuf () |
2641 | { | |
2642 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2643 | "abort-recursive-edit"); | |
2644 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2645 | "exit-minibuffer"); | |
2646 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2647 | "exit-minibuffer"); | |
2648 | ||
f927c5ae JB |
2649 | initial_define_key (Vminibuffer_local_ns_map, ' ', |
2650 | "exit-minibuffer"); | |
2651 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2652 | "exit-minibuffer"); | |
2653 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2654 | "self-insert-and-exit"); | |
2655 | ||
f927c5ae JB |
2656 | initial_define_key (Vminibuffer_local_completion_map, '\t', |
2657 | "minibuffer-complete"); | |
2658 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2659 | "minibuffer-complete-word"); | |
2660 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2661 | "minibuffer-completion-help"); | |
2662 | ||
f927c5ae JB |
2663 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), |
2664 | "minibuffer-complete-and-exit"); | |
2665 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2666 | "minibuffer-complete-and-exit"); | |
f927c5ae | 2667 | } |