Commit | Line | Data |
---|---|---|
f927c5ae | 1 | /* Minibuffer input and completion. |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
aaef169d TTN |
3 | 2001, 2002, 2003, 2004, 2005, |
4 | 2006 Free Software Foundation, Inc. | |
f927c5ae JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
ffd56f97 | 10 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
11 | any later version. |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
f927c5ae JB |
22 | |
23 | ||
18160b98 | 24 | #include <config.h> |
3f708f4c | 25 | #include <stdio.h> |
af52c32d | 26 | |
f927c5ae JB |
27 | #include "lisp.h" |
28 | #include "commands.h" | |
29 | #include "buffer.h" | |
d50a3d2a | 30 | #include "charset.h" |
f927c5ae | 31 | #include "dispextern.h" |
2538fae4 | 32 | #include "keyboard.h" |
ff11dfa1 | 33 | #include "frame.h" |
f927c5ae JB |
34 | #include "window.h" |
35 | #include "syntax.h" | |
0c21eeeb | 36 | #include "intervals.h" |
8feddab4 | 37 | #include "keymap.h" |
f927c5ae | 38 | |
a4e71d81 KH |
39 | extern int quit_char; |
40 | ||
f927c5ae | 41 | /* List of buffers for use as minibuffers. |
4d04c1f1 KH |
42 | The first element of the list is used for the outermost minibuffer |
43 | invocation, the next element is used for a recursive minibuffer | |
44 | invocation, etc. The list is extended at the end as deeper | |
45 | minibuffer recursions are encountered. */ | |
279cf52c | 46 | |
f927c5ae JB |
47 | Lisp_Object Vminibuffer_list; |
48 | ||
4d04c1f1 | 49 | /* Data to remember during recursive minibuffer invocations */ |
279cf52c | 50 | |
4d04c1f1 | 51 | Lisp_Object minibuf_save_list; |
f927c5ae JB |
52 | |
53 | /* Depth in minibuffer invocations. */ | |
279cf52c | 54 | |
f927c5ae JB |
55 | int minibuf_level; |
56 | ||
77aa8edf | 57 | /* Nonzero means display completion help for invalid input. */ |
279cf52c | 58 | |
739cc391 | 59 | Lisp_Object Vcompletion_auto_help; |
f927c5ae | 60 | |
77aa8edf | 61 | /* The maximum length of a minibuffer history. */ |
279cf52c | 62 | |
77aa8edf RS |
63 | Lisp_Object Qhistory_length, Vhistory_length; |
64 | ||
0da4d471 JL |
65 | /* No duplicates in history. */ |
66 | ||
67 | int history_delete_duplicates; | |
68 | ||
b278606c | 69 | /* Fread_minibuffer leaves the input here as a string. */ |
279cf52c | 70 | |
f927c5ae JB |
71 | Lisp_Object last_minibuf_string; |
72 | ||
9ab4a725 | 73 | /* Nonzero means let functions called when within a minibuffer |
f927c5ae | 74 | invoke recursive minibuffers (to read arguments, or whatever) */ |
279cf52c | 75 | |
f927c5ae JB |
76 | int enable_recursive_minibuffers; |
77 | ||
c3421833 RS |
78 | /* Nonzero means don't ignore text properties |
79 | in Fread_from_minibuffer. */ | |
279cf52c | 80 | |
c3421833 RS |
81 | int minibuffer_allow_text_properties; |
82 | ||
f927c5ae JB |
83 | /* help-form is bound to this while in the minibuffer. */ |
84 | ||
85 | Lisp_Object Vminibuffer_help_form; | |
86 | ||
770970cb RS |
87 | /* Variable which is the history list to add minibuffer values to. */ |
88 | ||
89 | Lisp_Object Vminibuffer_history_variable; | |
90 | ||
91 | /* Current position in the history list (adjusted by M-n and M-p). */ | |
92 | ||
93 | Lisp_Object Vminibuffer_history_position; | |
94 | ||
cc64f5c9 MB |
95 | /* Text properties that are added to minibuffer prompts. |
96 | These are in addition to the basic `field' property, and stickiness | |
97 | properties. */ | |
98 | ||
99 | Lisp_Object Vminibuffer_prompt_properties; | |
100 | ||
406e55df | 101 | Lisp_Object Qminibuffer_history, Qbuffer_name_history; |
770970cb | 102 | |
719b4a40 RS |
103 | Lisp_Object Qread_file_name_internal; |
104 | ||
177aecf9 | 105 | /* Normal hooks for entry to and exit from minibuffer. */ |
5c781212 RS |
106 | |
107 | Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook; | |
177aecf9 | 108 | Lisp_Object Qminibuffer_exit_hook, Vminibuffer_exit_hook; |
5c781212 | 109 | |
eebbfb01 | 110 | /* Function to call to read a buffer name. */ |
9ab4a725 | 111 | Lisp_Object Vread_buffer_function; |
eebbfb01 | 112 | |
f927c5ae JB |
113 | /* Nonzero means completion ignores case. */ |
114 | ||
115 | int completion_ignore_case; | |
116 | ||
42006772 RS |
117 | /* List of regexps that should restrict possible completions. */ |
118 | ||
119 | Lisp_Object Vcompletion_regexp_list; | |
120 | ||
6a9ee000 RS |
121 | /* Nonzero means raise the minibuffer frame when the minibuffer |
122 | is entered. */ | |
123 | ||
124 | int minibuffer_auto_raise; | |
125 | ||
f927c5ae JB |
126 | /* If last completion attempt reported "Complete but not unique" |
127 | then this is the string completed then; otherwise this is nil. */ | |
128 | ||
129 | static Lisp_Object last_exact_completion; | |
130 | ||
30e13e56 | 131 | extern Lisp_Object Voverriding_local_map; |
cee54539 | 132 | |
5744fa7c RS |
133 | Lisp_Object Quser_variable_p; |
134 | ||
135 | Lisp_Object Qminibuffer_default; | |
136 | ||
cee54539 KH |
137 | Lisp_Object Qcurrent_input_method, Qactivate_input_method; |
138 | ||
b0c138ce LT |
139 | Lisp_Object Qcase_fold_search; |
140 | ||
5744fa7c | 141 | extern Lisp_Object Qmouse_face; |
279cf52c | 142 | |
8e9968c6 | 143 | extern Lisp_Object Qfield; |
f927c5ae | 144 | \f |
89fdc4a0 KH |
145 | /* Put minibuf on currently selected frame's minibuffer. |
146 | We do this whenever the user starts a new minibuffer | |
147 | or when a minibuffer exits. */ | |
148 | ||
149 | void | |
150 | choose_minibuf_frame () | |
151 | { | |
a4aafc54 GM |
152 | if (FRAMEP (selected_frame) |
153 | && FRAME_LIVE_P (XFRAME (selected_frame)) | |
154 | && !EQ (minibuf_window, XFRAME (selected_frame)->minibuffer_window)) | |
89fdc4a0 | 155 | { |
a4aafc54 GM |
156 | struct frame *sf = XFRAME (selected_frame); |
157 | Lisp_Object buffer; | |
9ab4a725 | 158 | |
89fdc4a0 KH |
159 | /* I don't think that any frames may validly have a null minibuffer |
160 | window anymore. */ | |
a4aafc54 | 161 | if (NILP (sf->minibuffer_window)) |
89fdc4a0 KH |
162 | abort (); |
163 | ||
a4aafc54 GM |
164 | /* Under X, we come here with minibuf_window being the |
165 | minibuffer window of the unused termcap window created in | |
166 | init_window_once. That window doesn't have a buffer. */ | |
167 | buffer = XWINDOW (minibuf_window)->buffer; | |
168 | if (BUFFERP (buffer)) | |
cbbfe056 | 169 | Fset_window_buffer (sf->minibuffer_window, buffer, Qnil); |
a4aafc54 | 170 | minibuf_window = sf->minibuffer_window; |
89fdc4a0 | 171 | } |
914860c2 RS |
172 | |
173 | /* Make sure no other frame has a minibuffer as its selected window, | |
174 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
175 | confusing. Only allow the selected frame to do this, |
176 | and that only if the minibuffer is active. */ | |
914860c2 RS |
177 | { |
178 | Lisp_Object tail, frame; | |
179 | ||
180 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 | 181 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
a4aafc54 | 182 | && !(EQ (frame, selected_frame) |
07d402c8 | 183 | && minibuf_level > 0)) |
914860c2 RS |
184 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
185 | } | |
89fdc4a0 | 186 | } |
68313ed8 | 187 | |
0c94f256 RS |
188 | Lisp_Object |
189 | choose_minibuf_frame_1 (ignore) | |
190 | Lisp_Object ignore; | |
191 | { | |
192 | choose_minibuf_frame (); | |
193 | return Qnil; | |
194 | } | |
195 | ||
68313ed8 RS |
196 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
197 | Sset_minibuffer_window, 1, 1, 0, | |
af52c32d | 198 | doc: /* Specify which minibuffer window to use for the minibuffer. |
dea7e2ba | 199 | This affects where the minibuffer is displayed if you put text in it |
af52c32d MB |
200 | without invoking the usual minibuffer commands. */) |
201 | (window) | |
68313ed8 RS |
202 | Lisp_Object window; |
203 | { | |
b7826503 | 204 | CHECK_WINDOW (window); |
68313ed8 RS |
205 | if (! MINI_WINDOW_P (XWINDOW (window))) |
206 | error ("Window is not a minibuffer window"); | |
207 | ||
208 | minibuf_window = window; | |
209 | ||
210 | return window; | |
211 | } | |
212 | ||
89fdc4a0 | 213 | \f |
f927c5ae JB |
214 | /* Actual minibuffer invocation. */ |
215 | ||
af2b7cd5 | 216 | static Lisp_Object read_minibuf_unwind P_ ((Lisp_Object)); |
7292839d | 217 | static Lisp_Object run_exit_minibuf_hook P_ ((Lisp_Object)); |
af2b7cd5 RS |
218 | static Lisp_Object read_minibuf P_ ((Lisp_Object, Lisp_Object, |
219 | Lisp_Object, Lisp_Object, | |
220 | int, Lisp_Object, | |
221 | Lisp_Object, Lisp_Object, | |
b35cd215 | 222 | int, int)); |
edfef199 GM |
223 | static Lisp_Object read_minibuf_noninteractive P_ ((Lisp_Object, Lisp_Object, |
224 | Lisp_Object, Lisp_Object, | |
225 | int, Lisp_Object, | |
226 | Lisp_Object, Lisp_Object, | |
227 | int, int)); | |
228 | static Lisp_Object string_to_object P_ ((Lisp_Object, Lisp_Object)); | |
229 | ||
230 | ||
231 | /* Read a Lisp object from VAL and return it. If VAL is an empty | |
232 | string, and DEFALT is a string, read from DEFALT instead of VAL. */ | |
233 | ||
234 | static Lisp_Object | |
235 | string_to_object (val, defalt) | |
236 | Lisp_Object val, defalt; | |
237 | { | |
238 | struct gcpro gcpro1, gcpro2; | |
239 | Lisp_Object expr_and_pos; | |
240 | int pos; | |
9ab4a725 | 241 | |
edfef199 | 242 | GCPRO2 (val, defalt); |
9ab4a725 | 243 | |
d5db4077 | 244 | if (STRINGP (val) && SCHARS (val) == 0 |
edfef199 GM |
245 | && STRINGP (defalt)) |
246 | val = defalt; | |
9ab4a725 | 247 | |
edfef199 GM |
248 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); |
249 | pos = XINT (Fcdr (expr_and_pos)); | |
d5db4077 | 250 | if (pos != SCHARS (val)) |
edfef199 GM |
251 | { |
252 | /* Ignore trailing whitespace; any other trailing junk | |
253 | is an error. */ | |
254 | int i; | |
255 | pos = string_char_to_byte (val, pos); | |
d5db4077 | 256 | for (i = pos; i < SBYTES (val); i++) |
edfef199 | 257 | { |
d5db4077 | 258 | int c = SREF (val, i); |
edfef199 GM |
259 | if (c != ' ' && c != '\t' && c != '\n') |
260 | error ("Trailing garbage following expression"); | |
261 | } | |
262 | } | |
9ab4a725 | 263 | |
edfef199 GM |
264 | val = Fcar (expr_and_pos); |
265 | RETURN_UNGCPRO (val); | |
266 | } | |
267 | ||
268 | ||
269 | /* Like read_minibuf but reading from stdin. This function is called | |
270 | from read_minibuf to do the job if noninteractive. */ | |
271 | ||
272 | static Lisp_Object | |
273 | read_minibuf_noninteractive (map, initial, prompt, backup_n, expflag, | |
274 | histvar, histpos, defalt, allow_props, | |
275 | inherit_input_method) | |
276 | Lisp_Object map; | |
277 | Lisp_Object initial; | |
278 | Lisp_Object prompt; | |
279 | Lisp_Object backup_n; | |
280 | int expflag; | |
281 | Lisp_Object histvar; | |
282 | Lisp_Object histpos; | |
283 | Lisp_Object defalt; | |
284 | int allow_props; | |
285 | int inherit_input_method; | |
286 | { | |
287 | int size, len; | |
288 | char *line, *s; | |
edfef199 GM |
289 | Lisp_Object val; |
290 | ||
d5db4077 | 291 | fprintf (stdout, "%s", SDATA (prompt)); |
edfef199 GM |
292 | fflush (stdout); |
293 | ||
6bbd7a29 | 294 | val = Qnil; |
edfef199 GM |
295 | size = 100; |
296 | len = 0; | |
297 | line = (char *) xmalloc (size * sizeof *line); | |
298 | while ((s = fgets (line + len, size - len, stdin)) != NULL | |
299 | && (len = strlen (line), | |
300 | len == size - 1 && line[len - 1] != '\n')) | |
301 | { | |
302 | size *= 2; | |
303 | line = (char *) xrealloc (line, size); | |
304 | } | |
305 | ||
306 | if (s) | |
307 | { | |
308 | len = strlen (line); | |
9ab4a725 | 309 | |
edfef199 GM |
310 | if (len > 0 && line[len - 1] == '\n') |
311 | line[--len] = '\0'; | |
9ab4a725 | 312 | |
edfef199 GM |
313 | val = build_string (line); |
314 | xfree (line); | |
315 | } | |
316 | else | |
317 | { | |
318 | xfree (line); | |
319 | error ("Error reading from stdin"); | |
320 | } | |
9ab4a725 | 321 | |
edfef199 GM |
322 | /* If Lisp form desired instead of string, parse it. */ |
323 | if (expflag) | |
324 | val = string_to_object (val, defalt); | |
9ab4a725 | 325 | |
edfef199 GM |
326 | return val; |
327 | } | |
1011edb5 | 328 | \f |
873ef78e | 329 | DEFUN ("minibufferp", Fminibufferp, |
6d1b1d7b JPW |
330 | Sminibufferp, 0, 1, 0, |
331 | doc: /* Return t if BUFFER is a minibuffer. | |
b0c138ce LT |
332 | No argument or nil as argument means use current buffer as BUFFER. |
333 | BUFFER can be a buffer or a buffer name. */) | |
6d1b1d7b JPW |
334 | (buffer) |
335 | Lisp_Object buffer; | |
873ef78e RS |
336 | { |
337 | Lisp_Object tem; | |
338 | ||
6d1b1d7b JPW |
339 | if (NILP (buffer)) |
340 | buffer = Fcurrent_buffer (); | |
341 | else if (STRINGP (buffer)) | |
342 | buffer = Fget_buffer (buffer); | |
343 | else | |
344 | CHECK_BUFFER (buffer); | |
345 | ||
346 | tem = Fmemq (buffer, Vminibuffer_list); | |
873ef78e RS |
347 | return ! NILP (tem) ? Qt : Qnil; |
348 | } | |
349 | ||
a346ec72 MB |
350 | DEFUN ("minibuffer-prompt-end", Fminibuffer_prompt_end, |
351 | Sminibuffer_prompt_end, 0, 0, 0, | |
af52c32d | 352 | doc: /* Return the buffer position of the end of the minibuffer prompt. |
eb7c9b64 | 353 | Return (point-min) if current buffer is not a minibuffer. */) |
af52c32d | 354 | () |
a346ec72 MB |
355 | { |
356 | /* This function is written to be most efficient when there's a prompt. */ | |
873ef78e RS |
357 | Lisp_Object beg, end, tem; |
358 | beg = make_number (BEGV); | |
359 | ||
360 | tem = Fmemq (Fcurrent_buffer (), Vminibuffer_list); | |
361 | if (NILP (tem)) | |
362 | return beg; | |
363 | ||
364 | end = Ffield_end (beg, Qnil, Qnil); | |
9ab4a725 | 365 | |
a346ec72 | 366 | if (XINT (end) == ZV && NILP (Fget_char_property (beg, Qfield, Qnil))) |
b056f36d | 367 | return beg; |
a346ec72 MB |
368 | else |
369 | return end; | |
370 | } | |
371 | ||
372 | DEFUN ("minibuffer-contents", Fminibuffer_contents, | |
373 | Sminibuffer_contents, 0, 0, 0, | |
029a305c | 374 | doc: /* Return the user input in a minibuffer as a string. |
af52c32d MB |
375 | The current buffer must be a minibuffer. */) |
376 | () | |
a346ec72 MB |
377 | { |
378 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
379 | return make_buffer_string (prompt_end, ZV, 1); | |
380 | } | |
381 | ||
382 | DEFUN ("minibuffer-contents-no-properties", Fminibuffer_contents_no_properties, | |
383 | Sminibuffer_contents_no_properties, 0, 0, 0, | |
029a305c | 384 | doc: /* Return the user input in a minibuffer as a string, without text-properties. |
af52c32d MB |
385 | The current buffer must be a minibuffer. */) |
386 | () | |
a346ec72 MB |
387 | { |
388 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
389 | return make_buffer_string (prompt_end, ZV, 0); | |
390 | } | |
391 | ||
b5e1e449 JL |
392 | DEFUN ("minibuffer-completion-contents", Fminibuffer_completion_contents, |
393 | Sminibuffer_completion_contents, 0, 0, 0, | |
394 | doc: /* Return the user input in a minibuffer before point as a string. | |
395 | That is what completion commands operate on. | |
396 | The current buffer must be a minibuffer. */) | |
397 | () | |
398 | { | |
399 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
400 | if (PT < prompt_end) | |
401 | error ("Cannot do completion in the prompt"); | |
402 | return make_buffer_string (prompt_end, PT, 1); | |
403 | } | |
404 | ||
a346ec72 MB |
405 | DEFUN ("delete-minibuffer-contents", Fdelete_minibuffer_contents, |
406 | Sdelete_minibuffer_contents, 0, 0, 0, | |
af52c32d MB |
407 | doc: /* Delete all user input in a minibuffer. |
408 | The current buffer must be a minibuffer. */) | |
409 | () | |
a346ec72 MB |
410 | { |
411 | int prompt_end = XINT (Fminibuffer_prompt_end ()); | |
412 | if (prompt_end < ZV) | |
413 | del_range (prompt_end, ZV); | |
414 | return Qnil; | |
415 | } | |
416 | ||
1011edb5 | 417 | \f |
adb0708c LT |
418 | /* Read from the minibuffer using keymap MAP and initial contents INITIAL, |
419 | putting point minus BACKUP_N bytes from the end of INITIAL, | |
770970cb | 420 | prompting with PROMPT (a string), using history list HISTVAR |
adb0708c LT |
421 | with initial position HISTPOS. INITIAL should be a string or a |
422 | cons of a string and an integer. BACKUP_N should be <= 0, or | |
423 | Qnil, which is equivalent to 0. If INITIAL is a cons, BACKUP_N is | |
b0c138ce LT |
424 | ignored and replaced with an integer that puts point at one-indexed |
425 | position N in INITIAL, where N is the CDR of INITIAL, or at the | |
426 | beginning of INITIAL if N <= 0. | |
770970cb RS |
427 | |
428 | Normally return the result as a string (the text that was read), | |
3ab14176 | 429 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
430 | If HISTVAR is given, save the value read on that history only if it doesn't |
431 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 432 | the list as the string that was read. |
770970cb | 433 | |
4f9f637a | 434 | DEFALT specifies the default value for the sake of history commands. |
c3421833 | 435 | |
cee54539 KH |
436 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
437 | ||
adb0708c | 438 | if INHERIT_INPUT_METHOD is nonzero, the minibuffer inherits the |
cee54539 | 439 | current input method. */ |
e5d4686b RS |
440 | |
441 | static Lisp_Object | |
442 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
b35cd215 | 443 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
444 | Lisp_Object map; |
445 | Lisp_Object initial; | |
446 | Lisp_Object prompt; | |
5061d9c3 | 447 | Lisp_Object backup_n; |
f927c5ae | 448 | int expflag; |
770970cb RS |
449 | Lisp_Object histvar; |
450 | Lisp_Object histpos; | |
e5d4686b | 451 | Lisp_Object defalt; |
af2b7cd5 | 452 | int allow_props; |
cee54539 | 453 | int inherit_input_method; |
f927c5ae | 454 | { |
00a34088 | 455 | Lisp_Object val; |
aed13378 | 456 | int count = SPECPDL_INDEX (); |
cee54539 KH |
457 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
458 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 459 | Lisp_Object enable_multibyte; |
adb0708c | 460 | int pos = INTEGERP (backup_n) ? XINT (backup_n) : 0; |
4f9f637a RS |
461 | |
462 | /* String to add to the history. */ | |
463 | Lisp_Object histstring; | |
464 | ||
b20de1cd RS |
465 | Lisp_Object empty_minibuf; |
466 | Lisp_Object dummy, frame; | |
467 | ||
04012254 | 468 | extern Lisp_Object Qfront_sticky; |
fbd1209a | 469 | extern Lisp_Object Qrear_nonsticky; |
00a34088 | 470 | |
e5d4686b RS |
471 | specbind (Qminibuffer_default, defalt); |
472 | ||
08f7d623 | 473 | single_kboard_state (); |
e5baa1a7 | 474 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
475 | if (display_hourglass_p) |
476 | cancel_hourglass (); | |
e5baa1a7 | 477 | #endif |
718d3251 | 478 | |
adb0708c LT |
479 | if (!NILP (initial)) |
480 | { | |
481 | if (CONSP (initial)) | |
482 | { | |
483 | backup_n = Fcdr (initial); | |
484 | initial = Fcar (initial); | |
485 | CHECK_STRING (initial); | |
486 | if (!NILP (backup_n)) | |
487 | { | |
488 | CHECK_NUMBER (backup_n); | |
489 | /* Convert to distance from end of input. */ | |
490 | if (XINT (backup_n) < 1) | |
491 | /* A number too small means the beginning of the string. */ | |
492 | pos = - SCHARS (initial); | |
493 | else | |
494 | pos = XINT (backup_n) - 1 - SCHARS (initial); | |
495 | } | |
496 | } | |
497 | else | |
498 | CHECK_STRING (initial); | |
499 | } | |
00a34088 | 500 | val = Qnil; |
57ceaa8a | 501 | ambient_dir = current_buffer->directory; |
cee54539 | 502 | input_method = Qnil; |
c75000c7 | 503 | enable_multibyte = Qnil; |
57ceaa8a | 504 | |
00a34088 RS |
505 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
506 | store them away before we can GC. Don't need to protect | |
507 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 508 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 509 | |
7510b296 | 510 | if (!STRINGP (prompt)) |
695deb18 | 511 | prompt = empty_string; |
f927c5ae | 512 | |
f927c5ae | 513 | if (!enable_recursive_minibuffers |
be15a518 RS |
514 | && minibuf_level > 0) |
515 | { | |
516 | if (EQ (selected_window, minibuf_window)) | |
517 | error ("Command attempted to use minibuffer while in minibuffer"); | |
518 | else | |
519 | /* If we're in another window, cancel the minibuffer that's active. */ | |
520 | Fthrow (Qexit, | |
521 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
522 | } | |
f927c5ae | 523 | |
8b0ba111 | 524 | if (noninteractive && NILP (Vexecuting_kbd_macro)) |
c28b847b | 525 | { |
adb0708c LT |
526 | val = read_minibuf_noninteractive (map, initial, prompt, |
527 | make_number (pos), | |
c28b847b GM |
528 | expflag, histvar, histpos, defalt, |
529 | allow_props, inherit_input_method); | |
f9b9ccef | 530 | UNGCPRO; |
c28b847b GM |
531 | return unbind_to (count, val); |
532 | } | |
edfef199 | 533 | |
748dc60a | 534 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 535 | |
c5b6b680 RS |
536 | choose_minibuf_frame (); |
537 | ||
0c94f256 RS |
538 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
539 | ||
f927c5ae | 540 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
541 | Fcurrent_window_configuration (Qnil)); |
542 | ||
ff11dfa1 JB |
543 | /* If the minibuffer window is on a different frame, save that |
544 | frame's configuration too. */ | |
75f00e72 | 545 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
a4aafc54 | 546 | if (!EQ (mini_frame, selected_frame)) |
5061d9c3 RS |
547 | record_unwind_protect (Fset_window_configuration, |
548 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
549 | |
550 | /* If the minibuffer is on an iconified or invisible frame, | |
551 | make it visible now. */ | |
552 | Fmake_frame_visible (mini_frame); | |
553 | ||
6a9ee000 RS |
554 | if (minibuffer_auto_raise) |
555 | Fraise_frame (mini_frame); | |
f927c5ae | 556 | |
748dc60a RS |
557 | /* We have to do this after saving the window configuration |
558 | since that is what restores the current buffer. */ | |
559 | ||
560 | /* Arrange to restore a number of minibuffer-related variables. | |
561 | We could bind each variable separately, but that would use lots of | |
562 | specpdl slots. */ | |
563 | minibuf_save_list | |
564 | = Fcons (Voverriding_local_map, | |
565 | Fcons (minibuf_window, minibuf_save_list)); | |
566 | minibuf_save_list | |
567 | = Fcons (minibuf_prompt, | |
568 | Fcons (make_number (minibuf_prompt_width), | |
569 | Fcons (Vhelp_form, | |
570 | Fcons (Vcurrent_prefix_arg, | |
571 | Fcons (Vminibuffer_history_position, | |
572 | Fcons (Vminibuffer_history_variable, | |
573 | minibuf_save_list)))))); | |
574 | ||
575 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
576 | minibuf_level++; | |
7292839d SM |
577 | /* We are exiting the minibuffer one way or the other, so run the hook. |
578 | It should be run before unwinding the minibuf settings. Do it | |
579 | separately from read_minibuf_unwind because we need to make sure that | |
580 | read_minibuf_unwind is fully executed even if exit-minibuffer-hook | |
581 | signals an error. --Stef */ | |
582 | record_unwind_protect (run_exit_minibuf_hook, Qnil); | |
748dc60a RS |
583 | |
584 | /* Now that we can restore all those variables, start changing them. */ | |
585 | ||
1e3f16d5 | 586 | minibuf_prompt_width = 0; |
748dc60a RS |
587 | minibuf_prompt = Fcopy_sequence (prompt); |
588 | Vminibuffer_history_position = histpos; | |
589 | Vminibuffer_history_variable = histvar; | |
590 | Vhelp_form = Vminibuffer_help_form; | |
591 | ||
cee54539 | 592 | if (inherit_input_method) |
c75000c7 | 593 | { |
fd771ceb | 594 | /* `current-input-method' is buffer local. So, remember it in |
c75000c7 RS |
595 | INPUT_METHOD before changing the current buffer. */ |
596 | input_method = Fsymbol_value (Qcurrent_input_method); | |
597 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
598 | } | |
cee54539 | 599 | |
748dc60a RS |
600 | /* Switch to the minibuffer. */ |
601 | ||
4f69d8f6 RS |
602 | minibuffer = get_minibuffer (minibuf_level); |
603 | Fset_buffer (minibuffer); | |
64a3a3c0 | 604 | |
1d69c502 RS |
605 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
606 | if (inherit_input_method) | |
607 | current_buffer->enable_multibyte_characters = enable_multibyte; | |
608 | ||
64a3a3c0 JB |
609 | /* The current buffer's default directory is usually the right thing |
610 | for our minibuffer here. However, if you're typing a command at | |
611 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
612 | the current_buffer, so reset_buffer leaves buf's default | |
613 | directory unchanged. This is a bummer when you've just started | |
614 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
615 | you think of something better to do? Find another buffer with a | |
616 | better directory, and use that one instead. */ | |
748dc60a RS |
617 | if (STRINGP (ambient_dir)) |
618 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
619 | else |
620 | { | |
621 | Lisp_Object buf_list; | |
622 | ||
623 | for (buf_list = Vbuffer_alist; | |
624 | CONSP (buf_list); | |
7539e11f | 625 | buf_list = XCDR (buf_list)) |
64a3a3c0 | 626 | { |
1e62748e | 627 | Lisp_Object other_buf; |
64a3a3c0 | 628 | |
7539e11f | 629 | other_buf = XCDR (XCAR (buf_list)); |
7510b296 | 630 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
631 | { |
632 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
633 | break; | |
634 | } | |
635 | } | |
636 | } | |
637 | ||
a4aafc54 GM |
638 | if (!EQ (mini_frame, selected_frame)) |
639 | Fredirect_frame_focus (selected_frame, mini_frame); | |
43bad991 | 640 | |
f927c5ae | 641 | Vminibuf_scroll_window = selected_window; |
6122844a | 642 | if (minibuf_level == 1 || !EQ (minibuf_window, selected_window)) |
5705966b | 643 | minibuf_selected_window = selected_window; |
b20de1cd RS |
644 | |
645 | /* Empty out the minibuffers of all frames other than the one | |
646 | where we are going to display one now. | |
647 | Set them to point to ` *Minibuf-0*', which is always empty. */ | |
648 | empty_minibuf = Fget_buffer (build_string (" *Minibuf-0*")); | |
649 | ||
650 | FOR_EACH_FRAME (dummy, frame) | |
651 | { | |
652 | Lisp_Object root_window = Fframe_root_window (frame); | |
653 | Lisp_Object mini_window = XWINDOW (root_window)->next; | |
654 | ||
dd95745a RS |
655 | if (! NILP (mini_window) && ! EQ (mini_window, minibuf_window) |
656 | && !NILP (Fwindow_minibuffer_p (mini_window))) | |
b20de1cd RS |
657 | Fset_window_buffer (mini_window, empty_minibuf, Qnil); |
658 | } | |
659 | ||
660 | /* Display this minibuffer in the proper window. */ | |
cbbfe056 | 661 | Fset_window_buffer (minibuf_window, Fcurrent_buffer (), Qnil); |
f1321dc3 | 662 | Fselect_window (minibuf_window, Qnil); |
5a866662 | 663 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 664 | |
748dc60a RS |
665 | Fmake_local_variable (Qprint_escape_newlines); |
666 | print_escape_newlines = 1; | |
667 | ||
668 | /* Erase the buffer. */ | |
59115a22 | 669 | { |
331379bf | 670 | int count1 = SPECPDL_INDEX (); |
59115a22 | 671 | specbind (Qinhibit_read_only, Qt); |
a41edd99 | 672 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
673 | Ferase_buffer (); |
674 | unbind_to (count1, Qnil); | |
675 | } | |
676 | ||
279cf52c GM |
677 | if (!NILP (current_buffer->enable_multibyte_characters) |
678 | && ! STRING_MULTIBYTE (minibuf_prompt)) | |
679 | minibuf_prompt = Fstring_make_multibyte (minibuf_prompt); | |
680 | ||
279cf52c GM |
681 | /* Insert the prompt, record where it ends. */ |
682 | Finsert (1, &minibuf_prompt); | |
279cf52c GM |
683 | if (PT > BEG) |
684 | { | |
fbd1209a | 685 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 686 | Qfront_sticky, Qt, Qnil); |
fbd1209a | 687 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 688 | Qrear_nonsticky, Qt, Qnil); |
8e9968c6 GM |
689 | Fput_text_property (make_number (BEG), make_number (PT), |
690 | Qfield, Qt, Qnil); | |
cc64f5c9 MB |
691 | Fadd_text_properties (make_number (BEG), make_number (PT), |
692 | Vminibuffer_prompt_properties, Qnil); | |
279cf52c | 693 | } |
9ab4a725 TTN |
694 | |
695 | minibuf_prompt_width = (int) current_column (); /* iftc */ | |
696 | ||
748dc60a | 697 | /* Put in the initial input. */ |
56a98455 | 698 | if (!NILP (initial)) |
f927c5ae JB |
699 | { |
700 | Finsert (1, &initial); | |
adb0708c | 701 | Fforward_char (make_number (pos)); |
f927c5ae JB |
702 | } |
703 | ||
39e98b38 | 704 | clear_message (1, 1); |
f927c5ae JB |
705 | current_buffer->keymap = map; |
706 | ||
cee54539 | 707 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 708 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
709 | call1 (Qactivate_input_method, input_method); |
710 | ||
5c781212 RS |
711 | /* Run our hook, but not if it is empty. |
712 | (run-hooks would do nothing if it is empty, | |
fd771ceb | 713 | but it's important to save time here in the usual case.) */ |
92d3b06e RS |
714 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
715 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
716 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
717 | ||
4e6b7204 MB |
718 | /* Don't allow the user to undo past this point. */ |
719 | current_buffer->undo_list = Qnil; | |
720 | ||
f927c5ae JB |
721 | recursive_edit_1 (); |
722 | ||
723 | /* If cursor is on the minibuffer line, | |
724 | show the user we have exited by putting it in column 0. */ | |
279cf52c | 725 | if (XWINDOW (minibuf_window)->cursor.vpos >= 0 |
f927c5ae JB |
726 | && !noninteractive) |
727 | { | |
279cf52c GM |
728 | XWINDOW (minibuf_window)->cursor.hpos = 0; |
729 | XWINDOW (minibuf_window)->cursor.x = 0; | |
730 | XWINDOW (minibuf_window)->must_be_updated_p = 1; | |
a4aafc54 | 731 | update_frame (XFRAME (selected_frame), 1, 1); |
337aaf1f GM |
732 | if (rif && rif->flush_display) |
733 | rif->flush_display (XFRAME (XWINDOW (minibuf_window)->frame)); | |
f927c5ae JB |
734 | } |
735 | ||
c3421833 | 736 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 737 | Fset_buffer (minibuffer); |
be95a9b6 | 738 | if (allow_props) |
a346ec72 | 739 | val = Fminibuffer_contents (); |
be95a9b6 | 740 | else |
a346ec72 | 741 | val = Fminibuffer_contents_no_properties (); |
770970cb | 742 | |
b278606c | 743 | /* VAL is the string of minibuffer text. */ |
7019cca7 | 744 | |
b278606c BF |
745 | last_minibuf_string = val; |
746 | ||
4f9f637a | 747 | /* Choose the string to add to the history. */ |
b35cd215 | 748 | if (SCHARS (val) != 0) |
4f9f637a RS |
749 | histstring = val; |
750 | else if (STRINGP (defalt)) | |
751 | histstring = defalt; | |
752 | else | |
753 | histstring = Qnil; | |
754 | ||
755 | /* Add the value to the appropriate history list, if any. */ | |
756 | if (SYMBOLP (Vminibuffer_history_variable) | |
757 | && !NILP (histstring)) | |
3ab14176 KH |
758 | { |
759 | /* If the caller wanted to save the value read on a history list, | |
760 | then do so if the value is not already the front of the list. */ | |
761 | Lisp_Object histval; | |
c6d65724 RS |
762 | |
763 | /* If variable is unbound, make it nil. */ | |
f5c1dd0d | 764 | if (EQ (SYMBOL_VALUE (Vminibuffer_history_variable), Qunbound)) |
c6d65724 RS |
765 | Fset (Vminibuffer_history_variable, Qnil); |
766 | ||
3ab14176 KH |
767 | histval = Fsymbol_value (Vminibuffer_history_variable); |
768 | ||
769 | /* The value of the history variable must be a cons or nil. Other | |
770 | values are unacceptable. We silently ignore these values. */ | |
4f9f637a | 771 | |
3ab14176 | 772 | if (NILP (histval) |
9f6131cf | 773 | || (CONSP (histval) |
4f9f637a | 774 | /* Don't duplicate the most recent entry in the history. */ |
b35cd215 | 775 | && (NILP (Fequal (histstring, Fcar (histval)))))) |
77aa8edf RS |
776 | { |
777 | Lisp_Object length; | |
778 | ||
0da4d471 | 779 | if (history_delete_duplicates) Fdelete (histstring, histval); |
4f9f637a | 780 | histval = Fcons (histstring, histval); |
77aa8edf RS |
781 | Fset (Vminibuffer_history_variable, histval); |
782 | ||
783 | /* Truncate if requested. */ | |
784 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
785 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
786 | if (INTEGERP (length)) |
787 | { | |
788 | if (XINT (length) <= 0) | |
789 | Fset (Vminibuffer_history_variable, Qnil); | |
790 | else | |
791 | { | |
792 | Lisp_Object temp; | |
793 | ||
794 | temp = Fnthcdr (Fsub1 (length), histval); | |
795 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
796 | } | |
797 | } | |
77aa8edf | 798 | } |
9f6131cf RS |
799 | } |
800 | ||
801 | /* If Lisp form desired instead of string, parse it. */ | |
802 | if (expflag) | |
edfef199 | 803 | val = string_to_object (val, defalt); |
3ab14176 | 804 | |
00a34088 RS |
805 | /* The appropriate frame will get selected |
806 | in set-window-configuration. */ | |
f9b9ccef SM |
807 | UNGCPRO; |
808 | return unbind_to (count, val); | |
f927c5ae JB |
809 | } |
810 | ||
811 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
812 | depth = 0 is the lowest allowed argument, and that is the value | |
813 | used for nonrecursive minibuffer invocations */ | |
814 | ||
815 | Lisp_Object | |
816 | get_minibuffer (depth) | |
817 | int depth; | |
818 | { | |
819 | Lisp_Object tail, num, buf; | |
9f6c23bc | 820 | char name[24]; |
f927c5ae JB |
821 | extern Lisp_Object nconc2 (); |
822 | ||
5a866662 | 823 | XSETFASTINT (num, depth); |
f927c5ae | 824 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 825 | if (NILP (tail)) |
f927c5ae JB |
826 | { |
827 | tail = Fcons (Qnil, Qnil); | |
828 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
829 | } | |
830 | buf = Fcar (tail); | |
56a98455 | 831 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
832 | { |
833 | sprintf (name, " *Minibuf-%d*", depth); | |
834 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
835 | |
836 | /* Although the buffer's name starts with a space, undo should be | |
837 | enabled in it. */ | |
838 | Fbuffer_enable_undo (buf); | |
839 | ||
f3fbd155 | 840 | XSETCAR (tail, buf); |
f927c5ae JB |
841 | } |
842 | else | |
5956f71d | 843 | { |
aed13378 | 844 | int count = SPECPDL_INDEX (); |
7f856567 SM |
845 | /* `reset_buffer' blindly sets the list of overlays to NULL, so we |
846 | have to empty the list, otherwise we end up with overlays that | |
847 | think they belong to this buffer while the buffer doesn't know about | |
848 | them any more. */ | |
599ca9c2 SM |
849 | delete_all_overlays (XBUFFER (buf)); |
850 | reset_buffer (XBUFFER (buf)); | |
6b3faad8 RS |
851 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
852 | Fset_buffer (buf); | |
853 | Fkill_all_local_variables (); | |
854 | unbind_to (count, Qnil); | |
5956f71d | 855 | } |
64a3a3c0 | 856 | |
f927c5ae JB |
857 | return buf; |
858 | } | |
859 | ||
7292839d SM |
860 | static Lisp_Object |
861 | run_exit_minibuf_hook (data) | |
862 | Lisp_Object data; | |
863 | { | |
864 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
865 | && !NILP (Vrun_hooks)) | |
866 | safe_run_hooks (Qminibuffer_exit_hook); | |
867 | ||
868 | return Qnil; | |
869 | } | |
870 | ||
279cf52c GM |
871 | /* This function is called on exiting minibuffer, whether normally or |
872 | not, and it restores the current window, buffer, etc. */ | |
f927c5ae | 873 | |
9d815fd9 | 874 | static Lisp_Object |
43bad991 JB |
875 | read_minibuf_unwind (data) |
876 | Lisp_Object data; | |
f927c5ae | 877 | { |
c24e1160 | 878 | Lisp_Object old_deactivate_mark; |
59115a22 | 879 | Lisp_Object window; |
c24e1160 | 880 | |
f927c5ae | 881 | /* If this was a recursive minibuffer, |
59115a22 | 882 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 883 | minibuf_level--; |
f927c5ae | 884 | |
59115a22 | 885 | window = minibuf_window; |
279cf52c GM |
886 | /* To keep things predictable, in case it matters, let's be in the |
887 | minibuffer when we reset the relevant variables. */ | |
59115a22 RS |
888 | Fset_buffer (XWINDOW (window)->buffer); |
889 | ||
890 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
891 | minibuf_prompt = Fcar (minibuf_save_list); |
892 | minibuf_save_list = Fcdr (minibuf_save_list); | |
893 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
894 | minibuf_save_list = Fcdr (minibuf_save_list); | |
895 | Vhelp_form = Fcar (minibuf_save_list); | |
896 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 897 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
898 | minibuf_save_list = Fcdr (minibuf_save_list); |
899 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
900 | minibuf_save_list = Fcdr (minibuf_save_list); | |
901 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
902 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 903 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 904 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
905 | #if 0 |
906 | temp = Fcar (minibuf_save_list); | |
907 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
908 | minibuf_window = temp; | |
909 | #endif | |
30e13e56 | 910 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
911 | |
912 | /* Erase the minibuffer we were using at this level. */ | |
913 | { | |
aed13378 | 914 | int count = SPECPDL_INDEX (); |
59115a22 RS |
915 | /* Prevent error in erase-buffer. */ |
916 | specbind (Qinhibit_read_only, Qt); | |
bd819d14 | 917 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
918 | old_deactivate_mark = Vdeactivate_mark; |
919 | Ferase_buffer (); | |
920 | Vdeactivate_mark = old_deactivate_mark; | |
921 | unbind_to (count, Qnil); | |
922 | } | |
923 | ||
544e358d GM |
924 | /* When we get to the outmost level, make sure we resize the |
925 | mini-window back to its normal size. */ | |
926 | if (minibuf_level == 0) | |
1e3f16d5 | 927 | resize_mini_window (XWINDOW (window), 0); |
544e358d | 928 | |
59115a22 RS |
929 | /* Make sure minibuffer window is erased, not ignored. */ |
930 | windows_or_buffers_changed++; | |
931 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 932 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 | 933 | return Qnil; |
f927c5ae JB |
934 | } |
935 | \f | |
b9d721de | 936 | |
b35cd215 | 937 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
af52c32d | 938 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
b0c138ce LT |
939 | The optional second arg INITIAL-CONTENTS is an obsolete alternative to |
940 | DEFAULT-VALUE. It normally should be nil in new code, except when | |
941 | HIST is a cons. It is discussed in more detail below. | |
a1f17501 PJ |
942 | Third arg KEYMAP is a keymap to use whilst reading; |
943 | if omitted or nil, the default is `minibuffer-local-map'. | |
fd771ceb | 944 | If fourth arg READ is non-nil, then interpret the result as a Lisp object |
a1f17501 PJ |
945 | and return that object: |
946 | in other words, do `(car (read-from-string INPUT-STRING))' | |
b0c138ce LT |
947 | Fifth arg HIST, if non-nil, specifies a history list and optionally |
948 | the initial position in the list. It can be a symbol, which is the | |
949 | history list variable to use, or it can be a cons cell | |
950 | (HISTVAR . HISTPOS). In that case, HISTVAR is the history list variable | |
951 | to use, and HISTPOS is the initial position for use by the minibuffer | |
952 | history commands. For consistency, you should also specify that | |
953 | element of the history as the value of INITIAL-CONTENTS. Positions | |
954 | are counted starting from 1 at the beginning of the list. | |
a1f17501 | 955 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is available |
adb0708c LT |
956 | for history commands; but, unless READ is non-nil, `read-from-minibuffer' |
957 | does NOT return DEFAULT-VALUE if the user enters empty input! It returns | |
958 | the empty string. | |
a1f17501 | 959 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits |
029a305c | 960 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
961 | If the variable `minibuffer-allow-text-properties' is non-nil, |
962 | then the string which is returned includes whatever text properties | |
b0c138ce LT |
963 | were present in the minibuffer. Otherwise the value has no text properties. |
964 | ||
965 | The remainder of this documentation string describes the | |
966 | INITIAL-CONTENTS argument in more detail. It is only relevant when | |
967 | studying existing code, or when HIST is a cons. If non-nil, | |
968 | INITIAL-CONTENTS is a string to be inserted into the minibuffer before | |
969 | reading input. Normally, point is put at the end of that string. | |
970 | However, if INITIAL-CONTENTS is \(STRING . POSITION), the initial | |
971 | input is STRING, but point is placed at _one-indexed_ position | |
972 | POSITION in the minibuffer. Any integer value less than or equal to | |
973 | one puts point at the beginning of the string. *Note* that this | |
974 | behavior differs from the way such arguments are used in `completing-read' | |
975 | and some related functions, which use zero-indexing for POSITION. */) | |
b35cd215 | 976 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) |
e5d4686b | 977 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
b35cd215 | 978 | Lisp_Object inherit_input_method; |
f927c5ae | 979 | { |
adb0708c | 980 | Lisp_Object histvar, histpos, val; |
1d8d92f4 RS |
981 | struct gcpro gcpro1; |
982 | ||
b7826503 | 983 | CHECK_STRING (prompt); |
56a98455 | 984 | if (NILP (keymap)) |
f927c5ae JB |
985 | keymap = Vminibuffer_local_map; |
986 | else | |
02067692 | 987 | keymap = get_keymap (keymap, 1, 0); |
770970cb | 988 | |
7510b296 | 989 | if (SYMBOLP (hist)) |
770970cb RS |
990 | { |
991 | histvar = hist; | |
992 | histpos = Qnil; | |
993 | } | |
994 | else | |
995 | { | |
996 | histvar = Fcar_safe (hist); | |
997 | histpos = Fcdr_safe (hist); | |
998 | } | |
999 | if (NILP (histvar)) | |
1000 | histvar = Qminibuffer_history; | |
1001 | if (NILP (histpos)) | |
5a866662 | 1002 | XSETFASTINT (histpos, 0); |
770970cb | 1003 | |
1d8d92f4 | 1004 | GCPRO1 (default_value); |
e5d4686b | 1005 | val = read_minibuf (keymap, initial_contents, prompt, |
adb0708c | 1006 | Qnil, !NILP (read), |
c3421833 | 1007 | histvar, histpos, default_value, |
cee54539 | 1008 | minibuffer_allow_text_properties, |
b35cd215 | 1009 | !NILP (inherit_input_method)); |
1d8d92f4 | 1010 | UNGCPRO; |
e5d4686b | 1011 | return val; |
f927c5ae JB |
1012 | } |
1013 | ||
1014 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
b0c138ce | 1015 | doc: /* Return a Lisp object read using the minibuffer, unevaluated. |
a1f17501 | 1016 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
b0c138ce LT |
1017 | is a string to insert in the minibuffer before reading. |
1018 | \(INITIAL-CONTENTS can also be a cons of a string and an integer. Such | |
1019 | arguments are used as in `read-from-minibuffer') */) | |
af52c32d | 1020 | (prompt, initial_contents) |
f927c5ae JB |
1021 | Lisp_Object prompt, initial_contents; |
1022 | { | |
b7826503 | 1023 | CHECK_STRING (prompt); |
770970cb | 1024 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 1025 | prompt, Qnil, 1, Qminibuffer_history, |
b35cd215 | 1026 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
1027 | } |
1028 | ||
1029 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
af52c32d | 1030 | doc: /* Return value of Lisp expression read using the minibuffer. |
a1f17501 | 1031 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS |
b0c138ce LT |
1032 | is a string to insert in the minibuffer before reading. |
1033 | \(INITIAL-CONTENTS can also be a cons of a string and an integer. Such | |
eb7c9b64 | 1034 | arguments are used as in `read-from-minibuffer'.) */) |
af52c32d | 1035 | (prompt, initial_contents) |
f927c5ae JB |
1036 | Lisp_Object prompt, initial_contents; |
1037 | { | |
1038 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
1039 | } | |
1040 | ||
1041 | /* Functions that use the minibuffer to read various things. */ | |
1042 | ||
cee54539 | 1043 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
af52c32d | 1044 | doc: /* Read a string from the minibuffer, prompting with string PROMPT. |
a1f17501 | 1045 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading. |
b0c138ce LT |
1046 | This argument has been superseded by DEFAULT-VALUE and should normally |
1047 | be nil in new code. It behaves as in `read-from-minibuffer'. See the | |
1048 | documentation string of that function for details. | |
a1f17501 PJ |
1049 | The third arg HISTORY, if non-nil, specifies a history list |
1050 | and optionally the initial position in the list. | |
1051 | See `read-from-minibuffer' for details of HISTORY argument. | |
1052 | Fourth arg DEFAULT-VALUE is the default value. If non-nil, it is used | |
1053 | for history commands, and as the value to return if the user enters | |
1054 | the empty string. | |
1055 | Fifth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits | |
029a305c | 1056 | the current input method and the setting of `enable-multibyte-characters'. */) |
af52c32d | 1057 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 1058 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 1059 | Lisp_Object inherit_input_method; |
f927c5ae | 1060 | { |
b9a86585 RS |
1061 | Lisp_Object val; |
1062 | val = Fread_from_minibuffer (prompt, initial_input, Qnil, | |
1063 | Qnil, history, default_value, | |
b35cd215 | 1064 | inherit_input_method); |
d5db4077 | 1065 | if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (default_value)) |
b9a86585 RS |
1066 | val = default_value; |
1067 | return val; | |
f927c5ae JB |
1068 | } |
1069 | ||
cee54539 | 1070 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
af52c32d | 1071 | doc: /* Read a string from the terminal, not allowing blanks. |
b0c138ce LT |
1072 | Prompt with PROMPT. Whitespace terminates the input. If INITIAL is |
1073 | non-nil, it should be a string, which is used as initial input, with | |
1074 | point positioned at the end, so that SPACE will accept the input. | |
1075 | \(Actually, INITIAL can also be a cons of a string and an integer. | |
1076 | Such values are treated as in `read-from-minibuffer', but are normally | |
1077 | not useful in this function.) | |
a1f17501 | 1078 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits |
b0c138ce | 1079 | the current input method and the setting of`enable-multibyte-characters'. */) |
af52c32d | 1080 | (prompt, initial, inherit_input_method) |
c923ccc9 | 1081 | Lisp_Object prompt, initial, inherit_input_method; |
f927c5ae | 1082 | { |
b7826503 | 1083 | CHECK_STRING (prompt); |
c923ccc9 | 1084 | return read_minibuf (Vminibuffer_local_ns_map, initial, prompt, Qnil, |
cee54539 | 1085 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
b35cd215 | 1086 | !NILP (inherit_input_method)); |
f927c5ae JB |
1087 | } |
1088 | ||
e5d4686b | 1089 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
af52c32d | 1090 | doc: /* Read the name of a command and return as a symbol. |
fd771ceb | 1091 | Prompt with PROMPT. By default, return DEFAULT-VALUE. */) |
af52c32d | 1092 | (prompt, default_value) |
e5d4686b | 1093 | Lisp_Object prompt, default_value; |
f927c5ae | 1094 | { |
7c8d9931 RS |
1095 | Lisp_Object name, default_string; |
1096 | ||
1097 | if (NILP (default_value)) | |
1098 | default_string = Qnil; | |
1099 | else if (SYMBOLP (default_value)) | |
caa4733e | 1100 | default_string = SYMBOL_NAME (default_value); |
7c8d9931 RS |
1101 | else |
1102 | default_string = default_value; | |
9ab4a725 | 1103 | |
7c8d9931 RS |
1104 | name = Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, |
1105 | Qnil, Qnil, default_string, Qnil); | |
1106 | if (NILP (name)) | |
1107 | return name; | |
1108 | return Fintern (name, Qnil); | |
f927c5ae JB |
1109 | } |
1110 | ||
1111 | #ifdef NOTDEF | |
1112 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
af52c32d | 1113 | doc: /* One arg PROMPT, a string. Read the name of a function and return as a symbol. |
fd771ceb | 1114 | Prompt with PROMPT. */) |
af52c32d | 1115 | (prompt) |
f927c5ae JB |
1116 | Lisp_Object prompt; |
1117 | { | |
cee54539 | 1118 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
1119 | Qnil); |
1120 | } | |
1121 | #endif /* NOTDEF */ | |
1122 | ||
e5d4686b | 1123 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
af52c32d | 1124 | doc: /* Read the name of a user variable and return it as a symbol. |
fd771ceb | 1125 | Prompt with PROMPT. By default, return DEFAULT-VALUE. |
316f9bfc | 1126 | A user variable is one for which `user-variable-p' returns non-nil. */) |
af52c32d | 1127 | (prompt, default_value) |
e5d4686b | 1128 | Lisp_Object prompt, default_value; |
f927c5ae | 1129 | { |
7c8d9931 RS |
1130 | Lisp_Object name, default_string; |
1131 | ||
1132 | if (NILP (default_value)) | |
1133 | default_string = Qnil; | |
1134 | else if (SYMBOLP (default_value)) | |
caa4733e | 1135 | default_string = SYMBOL_NAME (default_value); |
7c8d9931 RS |
1136 | else |
1137 | default_string = default_value; | |
9ab4a725 | 1138 | |
7c8d9931 RS |
1139 | name = Fcompleting_read (prompt, Vobarray, |
1140 | Quser_variable_p, Qt, | |
1141 | Qnil, Qnil, default_string, Qnil); | |
1142 | if (NILP (name)) | |
1143 | return name; | |
1144 | return Fintern (name, Qnil); | |
f927c5ae JB |
1145 | } |
1146 | ||
1147 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
fd771ceb PJ |
1148 | doc: /* Read the name of a buffer and return as a string. |
1149 | Prompt with PROMPT. | |
a1f17501 | 1150 | Optional second arg DEF is value to return if user enters an empty line. |
fd771ceb | 1151 | If optional third arg REQUIRE-MATCH is non-nil, |
97c3e4cc RF |
1152 | only existing buffer names are allowed. |
1153 | The argument PROMPT should be a string ending with a colon and a space. */) | |
af52c32d | 1154 | (prompt, def, require_match) |
f927c5ae JB |
1155 | Lisp_Object prompt, def, require_match; |
1156 | { | |
eebbfb01 | 1157 | Lisp_Object args[4]; |
97c3e4cc RF |
1158 | unsigned char *s; |
1159 | int len; | |
9ab4a725 | 1160 | |
7510b296 | 1161 | if (BUFFERP (def)) |
f927c5ae | 1162 | def = XBUFFER (def)->name; |
eebbfb01 KH |
1163 | |
1164 | if (NILP (Vread_buffer_function)) | |
1165 | { | |
1166 | if (!NILP (def)) | |
1167 | { | |
97c3e4cc RF |
1168 | /* A default value was provided: we must change PROMPT, |
1169 | editing the default value in before the colon. To achieve | |
1170 | this, we replace PROMPT with a substring that doesn't | |
1171 | contain the terminal space and colon (if present). They | |
1172 | are then added back using Fformat. */ | |
1173 | ||
1174 | if (STRINGP (prompt)) | |
1175 | { | |
1176 | s = SDATA (prompt); | |
1177 | len = strlen (s); | |
1178 | if (len >= 2 && s[len - 2] == ':' && s[len - 1] == ' ') | |
1179 | len = len - 2; | |
1180 | else if (len >= 1 && (s[len - 1] == ':' || s[len - 1] == ' ')) | |
1181 | len--; | |
1182 | ||
1183 | prompt = make_specified_string (s, -1, len, | |
1184 | STRING_MULTIBYTE (prompt)); | |
1185 | } | |
1186 | ||
1187 | args[0] = build_string ("%s (default %s): "); | |
eebbfb01 KH |
1188 | args[1] = prompt; |
1189 | args[2] = def; | |
1190 | prompt = Fformat (3, args); | |
1191 | } | |
1192 | ||
1193 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
406e55df RS |
1194 | require_match, Qnil, Qbuffer_name_history, |
1195 | def, Qnil); | |
eebbfb01 KH |
1196 | } |
1197 | else | |
f927c5ae | 1198 | { |
eebbfb01 | 1199 | args[0] = Vread_buffer_function; |
f927c5ae JB |
1200 | args[1] = prompt; |
1201 | args[2] = def; | |
eebbfb01 KH |
1202 | args[3] = require_match; |
1203 | return Ffuncall(4, args); | |
f927c5ae | 1204 | } |
f927c5ae JB |
1205 | } |
1206 | \f | |
ec067ec7 RS |
1207 | static Lisp_Object |
1208 | minibuf_conform_representation (string, basis) | |
1209 | Lisp_Object string, basis; | |
1210 | { | |
1211 | if (STRING_MULTIBYTE (string) == STRING_MULTIBYTE (basis)) | |
1212 | return string; | |
1213 | ||
1214 | if (STRING_MULTIBYTE (string)) | |
1215 | return Fstring_make_unibyte (string); | |
1216 | else | |
1217 | return Fstring_make_multibyte (string); | |
1218 | } | |
1219 | ||
f927c5ae | 1220 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, |
af52c32d | 1221 | doc: /* Return common substring of all completions of STRING in ALIST. |
f9b9ccef | 1222 | Each car of each element of ALIST (or each element if it is not a cons cell) |
3809648a KS |
1223 | is tested to see if it begins with STRING. The possible matches may be |
1224 | strings or symbols. Symbols are converted to strings before testing, | |
1225 | see `symbol-name'. | |
a1f17501 PJ |
1226 | All that match are compared together; the longest initial sequence |
1227 | common to all matches is returned as a string. | |
1228 | If there is no match at all, nil is returned. | |
1229 | For a unique match which is exact, t is returned. | |
1230 | ||
3809648a KS |
1231 | If ALIST is a hash-table, all the string and symbol keys are the |
1232 | possible matches. | |
85cd4372 SM |
1233 | If ALIST is an obarray, the names of all symbols in the obarray |
1234 | are the possible matches. | |
a1f17501 PJ |
1235 | |
1236 | ALIST can also be a function to do the completion itself. | |
1237 | It receives three arguments: the values STRING, PREDICATE and nil. | |
1238 | Whatever it returns becomes the value of `try-completion'. | |
1239 | ||
1240 | If optional third argument PREDICATE is non-nil, | |
1241 | it is used to test each possible match. | |
1242 | The match is a candidate only if PREDICATE returns non-nil. | |
1243 | The argument given to PREDICATE is the alist element | |
85cd4372 SM |
1244 | or the symbol from the obarray. If ALIST is a hash-table, |
1245 | predicate is called with two arguments: the key and the value. | |
a1f17501 | 1246 | Additionally to this predicate, `completion-regexp-list' |
af52c32d MB |
1247 | is used to further constrain the set of candidates. */) |
1248 | (string, alist, predicate) | |
7efd36fc | 1249 | Lisp_Object string, alist, predicate; |
f927c5ae JB |
1250 | { |
1251 | Lisp_Object bestmatch, tail, elt, eltstring; | |
af2b7cd5 | 1252 | /* Size in bytes of BESTMATCH. */ |
6bbd7a29 | 1253 | int bestmatchsize = 0; |
af2b7cd5 | 1254 | /* These are in bytes, too. */ |
f927c5ae | 1255 | int compare, matchsize; |
1d69c502 RS |
1256 | int type = (HASH_TABLE_P (alist) ? 3 |
1257 | : VECTORP (alist) ? 2 | |
1258 | : NILP (alist) || (CONSP (alist) | |
1259 | && (!SYMBOLP (XCAR (alist)) | |
1260 | || NILP (XCAR (alist))))); | |
6bbd7a29 | 1261 | int index = 0, obsize = 0; |
f927c5ae | 1262 | int matchcount = 0; |
acd81db9 | 1263 | int bindcount = -1; |
f927c5ae JB |
1264 | Lisp_Object bucket, zero, end, tem; |
1265 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1266 | ||
b7826503 | 1267 | CHECK_STRING (string); |
85cd4372 | 1268 | if (type == 0) |
7efd36fc | 1269 | return call3 (alist, string, predicate, Qnil); |
f927c5ae | 1270 | |
6bbd7a29 | 1271 | bestmatch = bucket = Qnil; |
c8ae863b | 1272 | zero = make_number (0); |
f927c5ae JB |
1273 | |
1274 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1275 | tail = alist; | |
85cd4372 | 1276 | if (type == 2) |
f927c5ae | 1277 | { |
f927c5ae JB |
1278 | obsize = XVECTOR (alist)->size; |
1279 | bucket = XVECTOR (alist)->contents[index]; | |
1280 | } | |
1281 | ||
1282 | while (1) | |
1283 | { | |
85cd4372 | 1284 | /* Get the next element of the alist, obarray, or hash-table. */ |
f927c5ae JB |
1285 | /* Exit the loop if the elements are all used up. */ |
1286 | /* elt gets the alist element or symbol. | |
1287 | eltstring gets the name to check as a completion. */ | |
1288 | ||
85cd4372 | 1289 | if (type == 1) |
f927c5ae | 1290 | { |
695deb18 | 1291 | if (!CONSP (tail)) |
f927c5ae | 1292 | break; |
695deb18 SM |
1293 | elt = XCAR (tail); |
1294 | eltstring = CONSP (elt) ? XCAR (elt) : elt; | |
1295 | tail = XCDR (tail); | |
f927c5ae | 1296 | } |
85cd4372 | 1297 | else if (type == 2) |
f927c5ae | 1298 | { |
c8ae863b | 1299 | if (!EQ (bucket, zero)) |
f927c5ae JB |
1300 | { |
1301 | elt = bucket; | |
3809648a | 1302 | eltstring = elt; |
f927c5ae JB |
1303 | if (XSYMBOL (bucket)->next) |
1304 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1305 | else | |
5a866662 | 1306 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1307 | } |
1308 | else if (++index >= obsize) | |
1309 | break; | |
1310 | else | |
1311 | { | |
1312 | bucket = XVECTOR (alist)->contents[index]; | |
1313 | continue; | |
1314 | } | |
1315 | } | |
85cd4372 SM |
1316 | else /* if (type == 3) */ |
1317 | { | |
1318 | while (index < HASH_TABLE_SIZE (XHASH_TABLE (alist)) | |
1319 | && NILP (HASH_HASH (XHASH_TABLE (alist), index))) | |
1320 | index++; | |
1321 | if (index >= HASH_TABLE_SIZE (XHASH_TABLE (alist))) | |
1322 | break; | |
1323 | else | |
1324 | elt = eltstring = HASH_KEY (XHASH_TABLE (alist), index++); | |
1325 | } | |
f927c5ae JB |
1326 | |
1327 | /* Is this element a possible completion? */ | |
1328 | ||
3809648a KS |
1329 | if (SYMBOLP (eltstring)) |
1330 | eltstring = Fsymbol_name (eltstring); | |
1331 | ||
7510b296 | 1332 | if (STRINGP (eltstring) |
d5db4077 | 1333 | && SCHARS (string) <= SCHARS (eltstring) |
c8ae863b | 1334 | && (tem = Fcompare_strings (eltstring, zero, |
d5db4077 | 1335 | make_number (SCHARS (string)), |
c8ae863b | 1336 | string, zero, Qnil, |
b0c138ce | 1337 | completion_ignore_case ? Qt : Qnil), |
69f4ef20 | 1338 | EQ (Qt, tem))) |
f927c5ae JB |
1339 | { |
1340 | /* Yes. */ | |
42006772 | 1341 | Lisp_Object regexps; |
42006772 RS |
1342 | |
1343 | /* Ignore this element if it fails to match all the regexps. */ | |
acd81db9 DK |
1344 | { |
1345 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1346 | regexps = XCDR (regexps)) | |
1347 | { | |
1348 | if (bindcount < 0) { | |
1349 | bindcount = SPECPDL_INDEX (); | |
1350 | specbind (Qcase_fold_search, | |
1351 | completion_ignore_case ? Qt : Qnil); | |
77443789 | 1352 | } |
acd81db9 DK |
1353 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
1354 | if (NILP (tem)) | |
1355 | break; | |
1356 | } | |
1357 | if (CONSP (regexps)) | |
1358 | continue; | |
1359 | } | |
42006772 | 1360 | |
f927c5ae JB |
1361 | /* Ignore this element if there is a predicate |
1362 | and the predicate doesn't like it. */ | |
1363 | ||
7efd36fc | 1364 | if (!NILP (predicate)) |
f927c5ae | 1365 | { |
7efd36fc | 1366 | if (EQ (predicate, Qcommandp)) |
c837f4f9 | 1367 | tem = Fcommandp (elt, Qnil); |
f927c5ae JB |
1368 | else |
1369 | { | |
acd81db9 DK |
1370 | if (bindcount >= 0) { |
1371 | unbind_to (bindcount, Qnil); | |
1372 | bindcount = -1; | |
1373 | } | |
f927c5ae | 1374 | GCPRO4 (tail, string, eltstring, bestmatch); |
85cd4372 SM |
1375 | tem = type == 3 |
1376 | ? call2 (predicate, elt, | |
1377 | HASH_VALUE (XHASH_TABLE (alist), index - 1)) | |
1378 | : call1 (predicate, elt); | |
f927c5ae JB |
1379 | UNGCPRO; |
1380 | } | |
56a98455 | 1381 | if (NILP (tem)) continue; |
f927c5ae JB |
1382 | } |
1383 | ||
1384 | /* Update computation of how much all possible completions match */ | |
1385 | ||
56a98455 | 1386 | if (NILP (bestmatch)) |
af2b7cd5 | 1387 | { |
85cd4372 | 1388 | matchcount = 1; |
af2b7cd5 | 1389 | bestmatch = eltstring; |
d5db4077 | 1390 | bestmatchsize = SCHARS (eltstring); |
af2b7cd5 | 1391 | } |
f927c5ae JB |
1392 | else |
1393 | { | |
d5db4077 | 1394 | compare = min (bestmatchsize, SCHARS (eltstring)); |
c8ae863b | 1395 | tem = Fcompare_strings (bestmatch, zero, |
69f4ef20 | 1396 | make_number (compare), |
c8ae863b | 1397 | eltstring, zero, |
69f4ef20 RS |
1398 | make_number (compare), |
1399 | completion_ignore_case ? Qt : Qnil); | |
1400 | if (EQ (tem, Qt)) | |
1401 | matchsize = compare; | |
1402 | else if (XINT (tem) < 0) | |
1403 | matchsize = - XINT (tem) - 1; | |
1404 | else | |
1405 | matchsize = XINT (tem) - 1; | |
1406 | ||
52b14ac0 | 1407 | if (matchsize < 0) |
695deb18 | 1408 | /* When can this happen ? -stef */ |
52b14ac0 JB |
1409 | matchsize = compare; |
1410 | if (completion_ignore_case) | |
1411 | { | |
1412 | /* If this is an exact match except for case, | |
1413 | use it as the best match rather than one that is not an | |
1414 | exact match. This way, we get the case pattern | |
1415 | of the actual match. */ | |
d5db4077 KR |
1416 | if ((matchsize == SCHARS (eltstring) |
1417 | && matchsize < SCHARS (bestmatch)) | |
52b14ac0 JB |
1418 | || |
1419 | /* If there is more than one exact match ignoring case, | |
1420 | and one of them is exact including case, | |
1421 | prefer that one. */ | |
1422 | /* If there is no exact match ignoring case, | |
1423 | prefer a match that does not change the case | |
1424 | of the input. */ | |
d5db4077 | 1425 | ((matchsize == SCHARS (eltstring)) |
52b14ac0 | 1426 | == |
d5db4077 | 1427 | (matchsize == SCHARS (bestmatch)) |
c8ae863b | 1428 | && (tem = Fcompare_strings (eltstring, zero, |
d5db4077 | 1429 | make_number (SCHARS (string)), |
c8ae863b | 1430 | string, zero, |
69f4ef20 RS |
1431 | Qnil, |
1432 | Qnil), | |
1433 | EQ (Qt, tem)) | |
c8ae863b | 1434 | && (tem = Fcompare_strings (bestmatch, zero, |
d5db4077 | 1435 | make_number (SCHARS (string)), |
c8ae863b | 1436 | string, zero, |
69f4ef20 RS |
1437 | Qnil, |
1438 | Qnil), | |
1439 | ! EQ (Qt, tem)))) | |
52b14ac0 JB |
1440 | bestmatch = eltstring; |
1441 | } | |
d5db4077 | 1442 | if (bestmatchsize != SCHARS (eltstring) |
85cd4372 SM |
1443 | || bestmatchsize != matchsize) |
1444 | /* Don't count the same string multiple times. */ | |
1445 | matchcount++; | |
52b14ac0 | 1446 | bestmatchsize = matchsize; |
d5db4077 | 1447 | if (matchsize <= SCHARS (string) |
695deb18 SM |
1448 | && matchcount > 1) |
1449 | /* No need to look any further. */ | |
1450 | break; | |
f927c5ae JB |
1451 | } |
1452 | } | |
1453 | } | |
1454 | ||
acd81db9 DK |
1455 | if (bindcount >= 0) { |
1456 | unbind_to (bindcount, Qnil); | |
1457 | bindcount = -1; | |
1458 | } | |
1459 | ||
56a98455 | 1460 | if (NILP (bestmatch)) |
f927c5ae | 1461 | return Qnil; /* No completions found */ |
52b14ac0 JB |
1462 | /* If we are ignoring case, and there is no exact match, |
1463 | and no additional text was supplied, | |
1464 | don't change the case of what the user typed. */ | |
d5db4077 KR |
1465 | if (completion_ignore_case && bestmatchsize == SCHARS (string) |
1466 | && SCHARS (bestmatch) > bestmatchsize) | |
ec067ec7 | 1467 | return minibuf_conform_representation (string, bestmatch); |
52b14ac0 JB |
1468 | |
1469 | /* Return t if the supplied string is an exact match (counting case); | |
1470 | it does not require any change to be made. */ | |
d5db4077 | 1471 | if (matchcount == 1 && bestmatchsize == SCHARS (string) |
69f4ef20 RS |
1472 | && (tem = Fcompare_strings (bestmatch, make_number (0), |
1473 | make_number (bestmatchsize), | |
1474 | string, make_number (0), | |
1475 | make_number (bestmatchsize), | |
1476 | Qnil), | |
1477 | EQ (Qt, tem))) | |
f927c5ae JB |
1478 | return Qt; |
1479 | ||
5a866662 KH |
1480 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1481 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1482 | return Fsubstring (bestmatch, zero, end); |
1483 | } | |
f927c5ae | 1484 | \f |
89a255dc | 1485 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
af52c32d | 1486 | doc: /* Search for partial matches to STRING in ALIST. |
f9b9ccef | 1487 | Each car of each element of ALIST (or each element if it is not a cons cell) |
3809648a KS |
1488 | is tested to see if it begins with STRING. The possible matches may be |
1489 | strings or symbols. Symbols are converted to strings before testing, | |
1490 | see `symbol-name'. | |
a1f17501 PJ |
1491 | The value is a list of all the strings from ALIST that match. |
1492 | ||
3809648a KS |
1493 | If ALIST is a hash-table, all the string and symbol keys are the |
1494 | possible matches. | |
85cd4372 SM |
1495 | If ALIST is an obarray, the names of all symbols in the obarray |
1496 | are the possible matches. | |
a1f17501 PJ |
1497 | |
1498 | ALIST can also be a function to do the completion itself. | |
1499 | It receives three arguments: the values STRING, PREDICATE and t. | |
1500 | Whatever it returns becomes the value of `all-completions'. | |
1501 | ||
1502 | If optional third argument PREDICATE is non-nil, | |
1503 | it is used to test each possible match. | |
1504 | The match is a candidate only if PREDICATE returns non-nil. | |
1505 | The argument given to PREDICATE is the alist element | |
85cd4372 SM |
1506 | or the symbol from the obarray. If ALIST is a hash-table, |
1507 | predicate is called with two arguments: the key and the value. | |
a1f17501 PJ |
1508 | Additionally to this predicate, `completion-regexp-list' |
1509 | is used to further constrain the set of candidates. | |
1510 | ||
1511 | If the optional fourth argument HIDE-SPACES is non-nil, | |
1512 | strings in ALIST that start with a space | |
af52c32d MB |
1513 | are ignored unless STRING itself starts with a space. */) |
1514 | (string, alist, predicate, hide_spaces) | |
7efd36fc | 1515 | Lisp_Object string, alist, predicate, hide_spaces; |
f927c5ae JB |
1516 | { |
1517 | Lisp_Object tail, elt, eltstring; | |
1518 | Lisp_Object allmatches; | |
85cd4372 SM |
1519 | int type = HASH_TABLE_P (alist) ? 3 |
1520 | : VECTORP (alist) ? 2 | |
1521 | : NILP (alist) || (CONSP (alist) | |
1522 | && (!SYMBOLP (XCAR (alist)) | |
1523 | || NILP (XCAR (alist)))); | |
6bbd7a29 | 1524 | int index = 0, obsize = 0; |
acd81db9 | 1525 | int bindcount = -1; |
c8ae863b | 1526 | Lisp_Object bucket, tem, zero; |
f927c5ae JB |
1527 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
1528 | ||
b7826503 | 1529 | CHECK_STRING (string); |
85cd4372 SM |
1530 | if (type == 0) |
1531 | return call3 (alist, string, predicate, Qt); | |
6bbd7a29 | 1532 | allmatches = bucket = Qnil; |
c8ae863b | 1533 | zero = make_number (0); |
f927c5ae JB |
1534 | |
1535 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1536 | tail = alist; | |
85cd4372 | 1537 | if (type == 2) |
f927c5ae | 1538 | { |
f927c5ae JB |
1539 | obsize = XVECTOR (alist)->size; |
1540 | bucket = XVECTOR (alist)->contents[index]; | |
1541 | } | |
1542 | ||
1543 | while (1) | |
1544 | { | |
85cd4372 | 1545 | /* Get the next element of the alist, obarray, or hash-table. */ |
f927c5ae JB |
1546 | /* Exit the loop if the elements are all used up. */ |
1547 | /* elt gets the alist element or symbol. | |
1548 | eltstring gets the name to check as a completion. */ | |
1549 | ||
85cd4372 | 1550 | if (type == 1) |
f927c5ae | 1551 | { |
695deb18 | 1552 | if (!CONSP (tail)) |
f927c5ae | 1553 | break; |
695deb18 SM |
1554 | elt = XCAR (tail); |
1555 | eltstring = CONSP (elt) ? XCAR (elt) : elt; | |
1556 | tail = XCDR (tail); | |
f927c5ae | 1557 | } |
85cd4372 | 1558 | else if (type == 2) |
f927c5ae | 1559 | { |
c8ae863b | 1560 | if (!EQ (bucket, zero)) |
f927c5ae JB |
1561 | { |
1562 | elt = bucket; | |
3809648a | 1563 | eltstring = elt; |
f927c5ae JB |
1564 | if (XSYMBOL (bucket)->next) |
1565 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1566 | else | |
5a866662 | 1567 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1568 | } |
1569 | else if (++index >= obsize) | |
1570 | break; | |
1571 | else | |
1572 | { | |
1573 | bucket = XVECTOR (alist)->contents[index]; | |
1574 | continue; | |
1575 | } | |
1576 | } | |
85cd4372 SM |
1577 | else /* if (type == 3) */ |
1578 | { | |
1579 | while (index < HASH_TABLE_SIZE (XHASH_TABLE (alist)) | |
1580 | && NILP (HASH_HASH (XHASH_TABLE (alist), index))) | |
1581 | index++; | |
1582 | if (index >= HASH_TABLE_SIZE (XHASH_TABLE (alist))) | |
1583 | break; | |
1584 | else | |
1585 | elt = eltstring = HASH_KEY (XHASH_TABLE (alist), index++); | |
1586 | } | |
f927c5ae JB |
1587 | |
1588 | /* Is this element a possible completion? */ | |
1589 | ||
3809648a KS |
1590 | if (SYMBOLP (eltstring)) |
1591 | eltstring = Fsymbol_name (eltstring); | |
1592 | ||
7510b296 | 1593 | if (STRINGP (eltstring) |
d5db4077 | 1594 | && SCHARS (string) <= SCHARS (eltstring) |
89a255dc | 1595 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 | 1596 | unless the input starts with space. */ |
d5db4077 KR |
1597 | && ((SBYTES (string) > 0 |
1598 | && SREF (string, 0) == ' ') | |
1599 | || SREF (eltstring, 0) != ' ' | |
89a255dc | 1600 | || NILP (hide_spaces)) |
c8ae863b | 1601 | && (tem = Fcompare_strings (eltstring, zero, |
d5db4077 | 1602 | make_number (SCHARS (string)), |
c8ae863b | 1603 | string, zero, |
d5db4077 | 1604 | make_number (SCHARS (string)), |
69f4ef20 RS |
1605 | completion_ignore_case ? Qt : Qnil), |
1606 | EQ (Qt, tem))) | |
f927c5ae JB |
1607 | { |
1608 | /* Yes. */ | |
42006772 RS |
1609 | Lisp_Object regexps; |
1610 | Lisp_Object zero; | |
5a866662 | 1611 | XSETFASTINT (zero, 0); |
42006772 RS |
1612 | |
1613 | /* Ignore this element if it fails to match all the regexps. */ | |
acd81db9 DK |
1614 | { |
1615 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1616 | regexps = XCDR (regexps)) | |
1617 | { | |
1618 | if (bindcount < 0) { | |
1619 | bindcount = SPECPDL_INDEX (); | |
1620 | specbind (Qcase_fold_search, | |
1621 | completion_ignore_case ? Qt : Qnil); | |
77443789 | 1622 | } |
acd81db9 DK |
1623 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
1624 | if (NILP (tem)) | |
1625 | break; | |
1626 | } | |
1627 | if (CONSP (regexps)) | |
1628 | continue; | |
1629 | } | |
42006772 | 1630 | |
f927c5ae JB |
1631 | /* Ignore this element if there is a predicate |
1632 | and the predicate doesn't like it. */ | |
1633 | ||
7efd36fc | 1634 | if (!NILP (predicate)) |
f927c5ae | 1635 | { |
7efd36fc | 1636 | if (EQ (predicate, Qcommandp)) |
c837f4f9 | 1637 | tem = Fcommandp (elt, Qnil); |
f927c5ae JB |
1638 | else |
1639 | { | |
acd81db9 DK |
1640 | if (bindcount >= 0) { |
1641 | unbind_to (bindcount, Qnil); | |
1642 | bindcount = -1; | |
1643 | } | |
f927c5ae | 1644 | GCPRO4 (tail, eltstring, allmatches, string); |
85cd4372 SM |
1645 | tem = type == 3 |
1646 | ? call2 (predicate, elt, | |
1647 | HASH_VALUE (XHASH_TABLE (alist), index - 1)) | |
1648 | : call1 (predicate, elt); | |
f927c5ae JB |
1649 | UNGCPRO; |
1650 | } | |
56a98455 | 1651 | if (NILP (tem)) continue; |
f927c5ae JB |
1652 | } |
1653 | /* Ok => put it on the list. */ | |
1654 | allmatches = Fcons (eltstring, allmatches); | |
1655 | } | |
1656 | } | |
1657 | ||
acd81db9 DK |
1658 | if (bindcount >= 0) { |
1659 | unbind_to (bindcount, Qnil); | |
1660 | bindcount = -1; | |
1661 | } | |
1662 | ||
f927c5ae JB |
1663 | return Fnreverse (allmatches); |
1664 | } | |
1665 | \f | |
1666 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1667 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1668 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
ccf330a6 | 1669 | Lisp_Object Vminibuffer_completing_file_name; |
f927c5ae | 1670 | |
cee54539 | 1671 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
af52c32d | 1672 | doc: /* Read a string in the minibuffer, with completion. |
a1f17501 | 1673 | PROMPT is a string to prompt with; normally it ends in a colon and a space. |
b0c138ce | 1674 | TABLE can be an list of strings, an alist, an obarray or a hash table. |
a1f17501 PJ |
1675 | TABLE can also be a function to do the completion itself. |
1676 | PREDICATE limits completion to a subset of TABLE. | |
1677 | See `try-completion' and `all-completions' for more details | |
1678 | on completion, TABLE, and PREDICATE. | |
1679 | ||
1680 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless | |
1681 | the input is (or completes to) an element of TABLE or is null. | |
345c105f | 1682 | If it is also not t, typing RET does not exit if it does non-null completion. |
b0c138ce LT |
1683 | If the input is null, `completing-read' returns DEF, or an empty string |
1684 | if DEF is nil, regardless of the value of REQUIRE-MATCH. | |
1685 | ||
1686 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially, | |
1687 | with point positioned at the end. | |
1688 | If it is (STRING . POSITION), the initial input is STRING, but point | |
1689 | is placed at _zero-indexed_ position POSITION in STRING. (*Note* | |
1690 | that this is different from `read-from-minibuffer' and related | |
1691 | functions, which use one-indexing for POSITION.) This feature is | |
1692 | deprecated--it is best to pass nil for INITIAL-INPUT and supply the | |
1693 | default value DEF instead. The user can yank the default value into | |
1694 | the minibuffer easily using \\[next-history-element]. | |
1695 | ||
1696 | HIST, if non-nil, specifies a history list and optionally the initial | |
1697 | position in the list. It can be a symbol, which is the history list | |
1698 | variable to use, or it can be a cons cell (HISTVAR . HISTPOS). In | |
1699 | that case, HISTVAR is the history list variable to use, and HISTPOS | |
1700 | is the initial position (the position in the list used by the | |
1701 | minibuffer history commands). For consistency, you should also | |
1702 | specify that element of the history as the value of | |
1fb101f3 | 1703 | INITIAL-INPUT. (This is the only case in which you should use |
b0c138ce LT |
1704 | INITIAL-INPUT instead of DEF.) Positions are counted starting from |
1705 | 1 at the beginning of the list. The variable `history-length' | |
1706 | controls the maximum length of a history list. | |
38668f81 | 1707 | |
a1f17501 PJ |
1708 | DEF, if non-nil, is the default value. |
1709 | ||
1710 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits | |
029a305c | 1711 | the current input method and the setting of `enable-multibyte-characters'. |
a1f17501 PJ |
1712 | |
1713 | Completion ignores case if the ambient value of | |
af52c32d MB |
1714 | `completion-ignore-case' is non-nil. */) |
1715 | (prompt, table, predicate, require_match, initial_input, hist, def, inherit_input_method) | |
d43f85c2 RS |
1716 | Lisp_Object prompt, table, predicate, require_match, initial_input; |
1717 | Lisp_Object hist, def, inherit_input_method; | |
f927c5ae | 1718 | { |
86408abd LT |
1719 | Lisp_Object val, histvar, histpos, position; |
1720 | Lisp_Object init; | |
1721 | int pos = 0; | |
aed13378 | 1722 | int count = SPECPDL_INDEX (); |
0c8ee1a2 RS |
1723 | struct gcpro gcpro1; |
1724 | ||
86408abd | 1725 | init = initial_input; |
0c8ee1a2 RS |
1726 | GCPRO1 (def); |
1727 | ||
f927c5ae | 1728 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1729 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae | 1730 | specbind (Qminibuffer_completion_confirm, |
695deb18 | 1731 | EQ (require_match, Qt) ? Qnil : require_match); |
f927c5ae | 1732 | last_exact_completion = Qnil; |
770970cb | 1733 | |
86408abd LT |
1734 | position = Qnil; |
1735 | if (!NILP (init)) | |
1736 | { | |
1737 | if (CONSP (init)) | |
1738 | { | |
1739 | position = Fcdr (init); | |
1740 | init = Fcar (init); | |
1741 | } | |
1742 | CHECK_STRING (init); | |
1743 | if (!NILP (position)) | |
1744 | { | |
1745 | CHECK_NUMBER (position); | |
1746 | /* Convert to distance from end of input. */ | |
1747 | pos = XINT (position) - SCHARS (init); | |
1748 | } | |
1749 | } | |
1750 | ||
7510b296 | 1751 | if (SYMBOLP (hist)) |
770970cb RS |
1752 | { |
1753 | histvar = hist; | |
1754 | histpos = Qnil; | |
1755 | } | |
1756 | else | |
1757 | { | |
1758 | histvar = Fcar_safe (hist); | |
1759 | histpos = Fcdr_safe (hist); | |
1760 | } | |
1761 | if (NILP (histvar)) | |
1762 | histvar = Qminibuffer_history; | |
1763 | if (NILP (histpos)) | |
5a866662 | 1764 | XSETFASTINT (histpos, 0); |
770970cb | 1765 | |
56a98455 | 1766 | val = read_minibuf (NILP (require_match) |
bb0bdf70 EZ |
1767 | ? (NILP (Vminibuffer_completing_file_name) |
1768 | ? Vminibuffer_local_completion_map | |
1769 | : Vminibuffer_local_filename_completion_map) | |
1770 | : (NILP (Vminibuffer_completing_file_name) | |
1771 | ? Vminibuffer_local_must_match_map | |
1772 | : Vminibuffer_local_must_match_filename_map), | |
86408abd | 1773 | init, prompt, make_number (pos), 0, |
cee54539 | 1774 | histvar, histpos, def, 0, |
b35cd215 | 1775 | !NILP (inherit_input_method)); |
b9a86585 | 1776 | |
d5db4077 | 1777 | if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (def)) |
b9a86585 RS |
1778 | val = def; |
1779 | ||
0c8ee1a2 | 1780 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1781 | } |
1782 | \f | |
f927c5ae | 1783 | Lisp_Object Fminibuffer_completion_help (); |
695deb18 | 1784 | Lisp_Object Fassoc_string (); |
5d2ca7ae RS |
1785 | |
1786 | /* Test whether TXT is an exact completion. */ | |
695deb18 SM |
1787 | DEFUN ("test-completion", Ftest_completion, Stest_completion, 2, 3, 0, |
1788 | doc: /* Return non-nil if STRING is a valid completion. | |
1789 | Takes the same arguments as `all-completions' and `try-completion'. | |
1790 | If ALIST is a function, it is called with three arguments: | |
1791 | the values STRING, PREDICATE and `lambda'. */) | |
1792 | (string, alist, predicate) | |
1793 | Lisp_Object string, alist, predicate; | |
5d2ca7ae | 1794 | { |
adb0708c | 1795 | Lisp_Object regexps, tail, tem = Qnil; |
85cd4372 | 1796 | int i = 0; |
5d2ca7ae | 1797 | |
695deb18 SM |
1798 | CHECK_STRING (string); |
1799 | ||
1800 | if ((CONSP (alist) && (!SYMBOLP (XCAR (alist)) || NILP (XCAR (alist)))) | |
1801 | || NILP (alist)) | |
1802 | { | |
1803 | tem = Fassoc_string (string, alist, completion_ignore_case ? Qt : Qnil); | |
9f4a578d | 1804 | if (NILP (tem)) |
695deb18 SM |
1805 | return Qnil; |
1806 | } | |
1807 | else if (VECTORP (alist)) | |
5d2ca7ae | 1808 | { |
695deb18 SM |
1809 | /* Bypass intern-soft as that loses for nil. */ |
1810 | tem = oblookup (alist, | |
d5db4077 KR |
1811 | SDATA (string), |
1812 | SCHARS (string), | |
1813 | SBYTES (string)); | |
44472c88 | 1814 | if (!SYMBOLP (tem)) |
9404446f | 1815 | { |
695deb18 SM |
1816 | if (STRING_MULTIBYTE (string)) |
1817 | string = Fstring_make_unibyte (string); | |
9404446f | 1818 | else |
695deb18 | 1819 | string = Fstring_make_multibyte (string); |
9404446f | 1820 | |
adb0708c | 1821 | tem = oblookup (alist, |
d5db4077 KR |
1822 | SDATA (string), |
1823 | SCHARS (string), | |
1824 | SBYTES (string)); | |
9404446f | 1825 | } |
adb0708c LT |
1826 | |
1827 | if (completion_ignore_case && !SYMBOLP (tem)) | |
1828 | { | |
1829 | for (i = XVECTOR (alist)->size - 1; i >= 0; i--) | |
1830 | { | |
1831 | tail = XVECTOR (alist)->contents[i]; | |
1832 | if (SYMBOLP (tail)) | |
1833 | while (1) | |
1834 | { | |
1835 | if (EQ((Fcompare_strings (string, make_number (0), Qnil, | |
1836 | Fsymbol_name (tail), | |
1837 | make_number (0) , Qnil, Qt)), | |
1838 | Qt)) | |
1839 | { | |
1840 | tem = tail; | |
1841 | break; | |
1842 | } | |
1843 | if (XSYMBOL (tail)->next == 0) | |
1844 | break; | |
1845 | XSETSYMBOL (tail, XSYMBOL (tail)->next); | |
1846 | } | |
1847 | } | |
1848 | } | |
1849 | ||
1850 | if (!SYMBOLP (tem)) | |
1851 | return Qnil; | |
5d2ca7ae | 1852 | } |
85cd4372 SM |
1853 | else if (HASH_TABLE_P (alist)) |
1854 | { | |
adb0708c LT |
1855 | struct Lisp_Hash_Table *h = XHASH_TABLE (alist); |
1856 | i = hash_lookup (h, string, NULL); | |
85cd4372 | 1857 | if (i >= 0) |
adb0708c | 1858 | tem = HASH_KEY (h, i); |
85cd4372 | 1859 | else |
adb0708c LT |
1860 | for (i = 0; i < HASH_TABLE_SIZE (h); ++i) |
1861 | if (!NILP (HASH_HASH (h, i)) && | |
1862 | EQ (Fcompare_strings (string, make_number (0), Qnil, | |
1863 | HASH_KEY (h, i), make_number (0) , Qnil, | |
1864 | completion_ignore_case ? Qt : Qnil), | |
1865 | Qt)) | |
1866 | { | |
1867 | tem = HASH_KEY (h, i); | |
1868 | break; | |
1869 | } | |
1870 | if (!STRINGP (tem)) | |
85cd4372 SM |
1871 | return Qnil; |
1872 | } | |
5d2ca7ae | 1873 | else |
695deb18 SM |
1874 | return call3 (alist, string, predicate, Qlambda); |
1875 | ||
1876 | /* Reject this element if it fails to match all the regexps. */ | |
77443789 AS |
1877 | if (CONSP (Vcompletion_regexp_list)) |
1878 | { | |
1879 | int count = SPECPDL_INDEX (); | |
1880 | specbind (Qcase_fold_search, completion_ignore_case ? Qt : Qnil); | |
1881 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1882 | regexps = XCDR (regexps)) | |
1883 | { | |
1884 | if (NILP (Fstring_match (XCAR (regexps), | |
1885 | SYMBOLP (tem) ? string : tem, | |
1886 | Qnil))) | |
1887 | return unbind_to (count, Qnil); | |
1888 | } | |
1889 | unbind_to (count, Qnil); | |
1890 | } | |
695deb18 SM |
1891 | |
1892 | /* Finally, check the predicate. */ | |
1893 | if (!NILP (predicate)) | |
b0c138ce LT |
1894 | { |
1895 | return HASH_TABLE_P (alist) | |
1896 | ? call2 (predicate, tem, HASH_VALUE (XHASH_TABLE (alist), i)) | |
1897 | : call1 (predicate, tem); | |
1898 | } | |
695deb18 SM |
1899 | else |
1900 | return Qt; | |
5d2ca7ae | 1901 | } |
f927c5ae JB |
1902 | |
1903 | /* returns: | |
1904 | * 0 no possible completion | |
1905 | * 1 was already an exact and unique completion | |
1906 | * 3 was already an exact completion | |
1907 | * 4 completed to an exact completion | |
1908 | * 5 some completion happened | |
1909 | * 6 no completion happened | |
1910 | */ | |
1911 | int | |
1912 | do_completion () | |
1913 | { | |
0c80756e | 1914 | Lisp_Object completion, string, tem; |
f927c5ae JB |
1915 | int completedp; |
1916 | Lisp_Object last; | |
1e00c2ff | 1917 | struct gcpro gcpro1, gcpro2; |
f927c5ae | 1918 | |
b5e1e449 | 1919 | completion = Ftry_completion (Fminibuffer_completion_contents (), |
8e9968c6 | 1920 | Vminibuffer_completion_table, |
f927c5ae JB |
1921 | Vminibuffer_completion_predicate); |
1922 | last = last_exact_completion; | |
1923 | last_exact_completion = Qnil; | |
1924 | ||
4f9b95e5 KH |
1925 | GCPRO2 (completion, last); |
1926 | ||
56a98455 | 1927 | if (NILP (completion)) |
f927c5ae JB |
1928 | { |
1929 | bitch_at_user (); | |
805221da | 1930 | temp_echo_area_glyphs (build_string (" [No match]")); |
1e00c2ff | 1931 | UNGCPRO; |
f927c5ae JB |
1932 | return 0; |
1933 | } | |
1934 | ||
1935 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1936 | { |
1937 | UNGCPRO; | |
1938 | return 1; | |
1939 | } | |
f927c5ae | 1940 | |
b5e1e449 | 1941 | string = Fminibuffer_completion_contents (); |
0c80756e MB |
1942 | |
1943 | /* COMPLETEDP should be true if some completion was done, which | |
1944 | doesn't include simply changing the case of the entered string. | |
1945 | However, for appearance, the string is rewritten if the case | |
1946 | changes. */ | |
1947 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qt); | |
01cce3e7 | 1948 | completedp = !EQ (tem, Qt); |
0c80756e | 1949 | |
7892a68b KH |
1950 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qnil); |
1951 | if (!EQ (tem, Qt)) | |
0c80756e | 1952 | /* Rewrite the user's input. */ |
f927c5ae | 1953 | { |
1011edb5 RS |
1954 | int prompt_end = XINT (Fminibuffer_prompt_end ()); |
1955 | /* Some completion happened */ | |
1956 | ||
1957 | if (! NILP (Vminibuffer_completing_file_name) | |
d5db4077 | 1958 | && SREF (completion, SBYTES (completion) - 1) == '/' |
1011edb5 RS |
1959 | && PT < ZV |
1960 | && FETCH_CHAR (PT_BYTE) == '/') | |
1961 | { | |
1962 | del_range (prompt_end, PT + 1); | |
1963 | } | |
1964 | else | |
1965 | del_range (prompt_end, PT); | |
1966 | ||
f927c5ae | 1967 | Finsert (1, &completion); |
6e69ab8c MB |
1968 | |
1969 | if (! completedp) | |
1970 | /* The case of the string changed, but that's all. We're not | |
1971 | sure whether this is a unique completion or not, so try again | |
1972 | using the real case (this shouldn't recurse again, because | |
1973 | the next time try-completion will return either `t' or the | |
1974 | exact string). */ | |
1975 | { | |
1976 | UNGCPRO; | |
1977 | return do_completion (); | |
1978 | } | |
f927c5ae JB |
1979 | } |
1980 | ||
1981 | /* It did find a match. Do we match some possibility exactly now? */ | |
695deb18 SM |
1982 | tem = Ftest_completion (Fminibuffer_contents (), |
1983 | Vminibuffer_completion_table, | |
1984 | Vminibuffer_completion_predicate); | |
56a98455 | 1985 | if (NILP (tem)) |
1e00c2ff KH |
1986 | { |
1987 | /* not an exact match */ | |
1988 | UNGCPRO; | |
f927c5ae JB |
1989 | if (completedp) |
1990 | return 5; | |
739cc391 | 1991 | else if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1992 | Fminibuffer_completion_help (); |
1993 | else | |
805221da | 1994 | temp_echo_area_glyphs (build_string (" [Next char not unique]")); |
f927c5ae JB |
1995 | return 6; |
1996 | } | |
1997 | else if (completedp) | |
1e00c2ff KH |
1998 | { |
1999 | UNGCPRO; | |
2000 | return 4; | |
2001 | } | |
f927c5ae JB |
2002 | /* If the last exact completion and this one were the same, |
2003 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 2004 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 2005 | last_exact_completion = completion; |
56a98455 | 2006 | if (!NILP (last)) |
f927c5ae | 2007 | { |
b5e1e449 | 2008 | tem = Fminibuffer_completion_contents (); |
56a98455 | 2009 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
2010 | Fminibuffer_completion_help (); |
2011 | } | |
1e00c2ff | 2012 | UNGCPRO; |
f927c5ae | 2013 | return 3; |
f927c5ae | 2014 | } |
1e00c2ff | 2015 | |
52b14ac0 JB |
2016 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
2017 | ||
695deb18 SM |
2018 | DEFUN ("assoc-string", Fassoc_string, Sassoc_string, 2, 3, 0, |
2019 | doc: /* Like `assoc' but specifically for strings. | |
2020 | Unibyte strings are converted to multibyte for comparison. | |
2021 | And case is ignored if CASE-FOLD is non-nil. | |
2022 | As opposed to `assoc', it will also match an entry consisting of a single | |
2023 | string rather than a cons cell whose car is a string. */) | |
2024 | (key, list, case_fold) | |
52b14ac0 | 2025 | register Lisp_Object key; |
695deb18 | 2026 | Lisp_Object list, case_fold; |
52b14ac0 JB |
2027 | { |
2028 | register Lisp_Object tail; | |
2029 | ||
56a98455 | 2030 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
2031 | { |
2032 | register Lisp_Object elt, tem, thiscar; | |
2033 | elt = Fcar (tail); | |
695deb18 | 2034 | thiscar = CONSP (elt) ? XCAR (elt) : elt; |
7510b296 | 2035 | if (!STRINGP (thiscar)) |
52b14ac0 | 2036 | continue; |
9404446f RS |
2037 | tem = Fcompare_strings (thiscar, make_number (0), Qnil, |
2038 | key, make_number (0), Qnil, | |
695deb18 | 2039 | case_fold); |
9404446f RS |
2040 | if (EQ (tem, Qt)) |
2041 | return elt; | |
52b14ac0 JB |
2042 | QUIT; |
2043 | } | |
2044 | return Qnil; | |
2045 | } | |
f927c5ae JB |
2046 | |
2047 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
af52c32d | 2048 | doc: /* Complete the minibuffer contents as far as possible. |
a1f17501 PJ |
2049 | Return nil if there is no valid completion, else t. |
2050 | If no characters can be completed, display a list of possible completions. | |
2051 | If you repeat this command after it displayed such a list, | |
af52c32d MB |
2052 | scroll the window of possible completions. */) |
2053 | () | |
f927c5ae | 2054 | { |
2cb6da5c RS |
2055 | register int i; |
2056 | Lisp_Object window, tem; | |
2057 | ||
df902b62 RS |
2058 | /* If the previous command was not this, |
2059 | mark the completion buffer obsolete. */ | |
2060 | if (! EQ (current_kboard->Vlast_command, Vthis_command)) | |
2cb6da5c RS |
2061 | Vminibuf_scroll_window = Qnil; |
2062 | ||
2063 | window = Vminibuf_scroll_window; | |
2064 | /* If there's a fresh completion window with a live buffer, | |
2065 | and this command is repeated, scroll that window. */ | |
2066 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
2067 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
2068 | { | |
2069 | struct buffer *obuf = current_buffer; | |
2070 | ||
2071 | Fset_buffer (XWINDOW (window)->buffer); | |
7d7c3861 | 2072 | tem = Fpos_visible_in_window_p (make_number (ZV), window, Qnil); |
2cb6da5c RS |
2073 | if (! NILP (tem)) |
2074 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 2075 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
2076 | else |
2077 | /* Else scroll down one screen. */ | |
2078 | Fscroll_other_window (Qnil); | |
2079 | ||
2080 | set_buffer_internal (obuf); | |
2081 | return Qnil; | |
2082 | } | |
2083 | ||
2084 | i = do_completion (); | |
f927c5ae JB |
2085 | switch (i) |
2086 | { | |
2087 | case 0: | |
2088 | return Qnil; | |
2089 | ||
2090 | case 1: | |
a1c5aa96 GM |
2091 | if (PT != ZV) |
2092 | Fgoto_char (make_number (ZV)); | |
805221da | 2093 | temp_echo_area_glyphs (build_string (" [Sole completion]")); |
f927c5ae JB |
2094 | break; |
2095 | ||
2096 | case 3: | |
9994cc69 GM |
2097 | if (PT != ZV) |
2098 | Fgoto_char (make_number (ZV)); | |
805221da | 2099 | temp_echo_area_glyphs (build_string (" [Complete, but not unique]")); |
f927c5ae JB |
2100 | break; |
2101 | } | |
2102 | ||
2103 | return Qt; | |
2104 | } | |
e4c97a67 RS |
2105 | \f |
2106 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
2107 | ||
2108 | /* This one is called by internal_condition_case to do the real work. */ | |
2109 | ||
2110 | Lisp_Object | |
2111 | complete_and_exit_1 () | |
2112 | { | |
2113 | return make_number (do_completion ()); | |
2114 | } | |
2115 | ||
2116 | /* This one is called by internal_condition_case if an error happens. | |
2117 | Pretend the current value is an exact match. */ | |
2118 | ||
2119 | Lisp_Object | |
2120 | complete_and_exit_2 (ignore) | |
2121 | Lisp_Object ignore; | |
2122 | { | |
2123 | return make_number (1); | |
2124 | } | |
f927c5ae | 2125 | |
d850b038 SM |
2126 | EXFUN (Fexit_minibuffer, 0) NO_RETURN; |
2127 | ||
f927c5ae | 2128 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, |
94c7167b | 2129 | Sminibuffer_complete_and_exit, 0, 0, "", |
af52c32d | 2130 | doc: /* If the minibuffer contents is a valid completion then exit. |
a1f17501 | 2131 | Otherwise try to complete it. If completion leads to a valid completion, |
af52c32d MB |
2132 | a repetition of this command will exit. */) |
2133 | () | |
f927c5ae JB |
2134 | { |
2135 | register int i; | |
7723a3e5 | 2136 | Lisp_Object val, tem; |
f927c5ae JB |
2137 | |
2138 | /* Allow user to specify null string */ | |
a346ec72 | 2139 | if (XINT (Fminibuffer_prompt_end ()) == ZV) |
f927c5ae JB |
2140 | goto exit; |
2141 | ||
36baf3b7 | 2142 | val = Fminibuffer_contents (); |
7723a3e5 KR |
2143 | tem = Ftest_completion (val, |
2144 | Vminibuffer_completion_table, | |
2145 | Vminibuffer_completion_predicate); | |
2146 | if (!NILP (tem)) | |
36baf3b7 RS |
2147 | { |
2148 | if (completion_ignore_case) | |
2149 | { /* Fixup case of the field, if necessary. */ | |
2150 | Lisp_Object compl | |
2151 | = Ftry_completion (val, | |
2152 | Vminibuffer_completion_table, | |
2153 | Vminibuffer_completion_predicate); | |
2154 | if (STRINGP (compl) | |
2155 | /* If it weren't for this piece of paranoia, I'd replace | |
2156 | the whole thing with a call to do_completion. */ | |
2157 | && EQ (Flength (val), Flength (compl))) | |
2158 | { | |
2159 | del_range (XINT (Fminibuffer_prompt_end ()), ZV); | |
2160 | Finsert (1, &compl); | |
2161 | } | |
2162 | } | |
2163 | goto exit; | |
2164 | } | |
2165 | ||
e4c97a67 | 2166 | /* Call do_completion, but ignore errors. */ |
8db426c7 | 2167 | SET_PT (ZV); |
e4c97a67 RS |
2168 | val = internal_condition_case (complete_and_exit_1, Qerror, |
2169 | complete_and_exit_2); | |
2170 | ||
2171 | i = XFASTINT (val); | |
f927c5ae JB |
2172 | switch (i) |
2173 | { | |
2174 | case 1: | |
2175 | case 3: | |
2176 | goto exit; | |
2177 | ||
2178 | case 4: | |
56a98455 | 2179 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae | 2180 | { |
805221da | 2181 | temp_echo_area_glyphs (build_string (" [Confirm]")); |
f927c5ae JB |
2182 | return Qnil; |
2183 | } | |
2184 | else | |
2185 | goto exit; | |
2186 | ||
2187 | default: | |
2188 | return Qnil; | |
2189 | } | |
2190 | exit: | |
d850b038 | 2191 | return Fexit_minibuffer (); |
f927c5ae JB |
2192 | /* NOTREACHED */ |
2193 | } | |
2194 | ||
2195 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
94c7167b | 2196 | 0, 0, "", |
af52c32d | 2197 | doc: /* Complete the minibuffer contents at most a single word. |
a1f17501 PJ |
2198 | After one word is completed as much as possible, a space or hyphen |
2199 | is added, provided that matches some possible completion. | |
af52c32d MB |
2200 | Return nil if there is no valid completion, else t. */) |
2201 | () | |
f927c5ae | 2202 | { |
69f4ef20 | 2203 | Lisp_Object completion, tem, tem1; |
af2b7cd5 | 2204 | register int i, i_byte; |
d7be4211 | 2205 | struct gcpro gcpro1, gcpro2; |
1011edb5 | 2206 | int prompt_end_charpos = XINT (Fminibuffer_prompt_end ()); |
b278606c BF |
2207 | |
2208 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
2209 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae | 2210 | |
b5e1e449 | 2211 | completion = Ftry_completion (Fminibuffer_completion_contents (), |
f927c5ae JB |
2212 | Vminibuffer_completion_table, |
2213 | Vminibuffer_completion_predicate); | |
56a98455 | 2214 | if (NILP (completion)) |
f927c5ae JB |
2215 | { |
2216 | bitch_at_user (); | |
805221da | 2217 | temp_echo_area_glyphs (build_string (" [No match]")); |
f927c5ae JB |
2218 | return Qnil; |
2219 | } | |
2220 | if (EQ (completion, Qt)) | |
2221 | return Qnil; | |
2222 | ||
b278606c | 2223 | #if 0 /* How the below code used to look, for reference. */ |
a346ec72 | 2224 | tem = Fminibuffer_contents (); |
d5db4077 KR |
2225 | b = SDATA (tem); |
2226 | i = ZV - 1 - SCHARS (completion); | |
2227 | p = SDATA (completion); | |
f927c5ae JB |
2228 | if (i > 0 || |
2229 | 0 <= scmp (b, p, ZV - 1)) | |
2230 | { | |
2231 | i = 1; | |
2232 | /* Set buffer to longest match of buffer tail and completion head. */ | |
2233 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
2234 | i++; | |
2235 | del_range (1, i + 1); | |
2236 | SET_PT (ZV); | |
2237 | } | |
2238 | #else /* Rewritten code */ | |
2239 | { | |
69f4ef20 | 2240 | int buffer_nchars, completion_nchars; |
f927c5ae | 2241 | |
b7826503 | 2242 | CHECK_STRING (completion); |
b5e1e449 | 2243 | tem = Fminibuffer_completion_contents (); |
d7be4211 | 2244 | GCPRO2 (completion, tem); |
719b4a40 RS |
2245 | /* If reading a file name, |
2246 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
ccf330a6 | 2247 | if (! NILP (Vminibuffer_completing_file_name)) |
719b4a40 RS |
2248 | { |
2249 | Lisp_Object substituted; | |
2250 | substituted = Fsubstitute_in_file_name (tem); | |
2251 | if (! EQ (substituted, tem)) | |
2252 | { | |
2253 | tem = substituted; | |
1011edb5 RS |
2254 | del_range (prompt_end_charpos, PT); |
2255 | Finsert (1, &tem); | |
719b4a40 RS |
2256 | } |
2257 | } | |
d5db4077 KR |
2258 | buffer_nchars = SCHARS (tem); /* # chars in what we completed. */ |
2259 | completion_nchars = SCHARS (completion); | |
69f4ef20 RS |
2260 | i = buffer_nchars - completion_nchars; |
2261 | if (i > 0 | |
2262 | || | |
2263 | (tem1 = Fcompare_strings (tem, make_number (0), | |
2264 | make_number (buffer_nchars), | |
2265 | completion, make_number (0), | |
2266 | make_number (buffer_nchars), | |
2267 | completion_ignore_case ? Qt : Qnil), | |
2268 | ! EQ (tem1, Qt))) | |
f927c5ae | 2269 | { |
69f4ef20 RS |
2270 | int start_pos; |
2271 | ||
1011edb5 RS |
2272 | /* Make buffer (before point) contain the longest match |
2273 | of TEM's tail and COMPLETION's head. */ | |
69f4ef20 RS |
2274 | if (i <= 0) i = 1; |
2275 | start_pos= i; | |
2276 | buffer_nchars -= i; | |
669c6673 | 2277 | while (i > 0) |
69f4ef20 | 2278 | { |
669c6673 | 2279 | tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil, |
69f4ef20 RS |
2280 | completion, make_number (0), |
2281 | make_number (buffer_nchars), | |
2282 | completion_ignore_case ? Qt : Qnil); | |
2283 | start_pos++; | |
2284 | if (EQ (tem1, Qt)) | |
2285 | break; | |
2286 | i++; | |
669c6673 | 2287 | buffer_nchars--; |
69f4ef20 | 2288 | } |
4f9f637a | 2289 | del_range (start_pos, start_pos + buffer_nchars); |
f927c5ae | 2290 | } |
d7be4211 | 2291 | UNGCPRO; |
f927c5ae JB |
2292 | } |
2293 | #endif /* Rewritten code */ | |
9ab4a725 | 2294 | |
279cf52c | 2295 | { |
8e9968c6 | 2296 | int prompt_end_bytepos; |
279cf52c | 2297 | prompt_end_bytepos = CHAR_TO_BYTE (prompt_end_charpos); |
1011edb5 RS |
2298 | i = PT - prompt_end_charpos; |
2299 | i_byte = PT_BYTE - prompt_end_bytepos; | |
279cf52c | 2300 | } |
f927c5ae JB |
2301 | |
2302 | /* If completion finds next char not unique, | |
b278606c | 2303 | consider adding a space or a hyphen. */ |
d5db4077 | 2304 | if (i == SCHARS (completion)) |
f927c5ae | 2305 | { |
b278606c | 2306 | GCPRO1 (completion); |
b5e1e449 | 2307 | tem = Ftry_completion (concat2 (Fminibuffer_completion_contents (), |
1011edb5 | 2308 | build_string (" ")), |
f927c5ae JB |
2309 | Vminibuffer_completion_table, |
2310 | Vminibuffer_completion_predicate); | |
b278606c BF |
2311 | UNGCPRO; |
2312 | ||
7510b296 | 2313 | if (STRINGP (tem)) |
f927c5ae JB |
2314 | completion = tem; |
2315 | else | |
2316 | { | |
b278606c BF |
2317 | GCPRO1 (completion); |
2318 | tem = | |
b5e1e449 | 2319 | Ftry_completion (concat2 (Fminibuffer_completion_contents (), |
1011edb5 | 2320 | build_string ("-")), |
b278606c BF |
2321 | Vminibuffer_completion_table, |
2322 | Vminibuffer_completion_predicate); | |
2323 | UNGCPRO; | |
2324 | ||
7510b296 | 2325 | if (STRINGP (tem)) |
f927c5ae JB |
2326 | completion = tem; |
2327 | } | |
9ab4a725 | 2328 | } |
f927c5ae JB |
2329 | |
2330 | /* Now find first word-break in the stuff found by completion. | |
2331 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
2332 | { |
2333 | int len, c; | |
d5db4077 | 2334 | int bytes = SBYTES (completion); |
e8157eae | 2335 | register const unsigned char *completion_string = SDATA (completion); |
d5db4077 | 2336 | for (; i_byte < SBYTES (completion); i_byte += len, i++) |
d50a3d2a | 2337 | { |
af2b7cd5 | 2338 | c = STRING_CHAR_AND_LENGTH (completion_string + i_byte, |
54643b2c | 2339 | bytes - i_byte, |
d50a3d2a KH |
2340 | len); |
2341 | if (SYNTAX (c) != Sword) | |
2342 | { | |
af2b7cd5 RS |
2343 | i_byte += len; |
2344 | i++; | |
d50a3d2a KH |
2345 | break; |
2346 | } | |
2347 | } | |
2348 | } | |
f927c5ae JB |
2349 | |
2350 | /* If got no characters, print help for user. */ | |
2351 | ||
1011edb5 | 2352 | if (i == PT - prompt_end_charpos) |
f927c5ae | 2353 | { |
739cc391 | 2354 | if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
2355 | Fminibuffer_completion_help (); |
2356 | return Qnil; | |
2357 | } | |
2358 | ||
2359 | /* Otherwise insert in minibuffer the chars we got */ | |
2360 | ||
1011edb5 | 2361 | if (! NILP (Vminibuffer_completing_file_name) |
d5db4077 | 2362 | && SREF (completion, SBYTES (completion) - 1) == '/' |
1011edb5 RS |
2363 | && PT < ZV |
2364 | && FETCH_CHAR (PT_BYTE) == '/') | |
2365 | { | |
2366 | del_range (prompt_end_charpos, PT + 1); | |
2367 | } | |
2368 | else | |
2369 | del_range (prompt_end_charpos, PT); | |
2370 | ||
af2b7cd5 | 2371 | insert_from_string (completion, 0, 0, i, i_byte, 1); |
f927c5ae JB |
2372 | return Qt; |
2373 | } | |
2374 | \f | |
2375 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
f5fab556 | 2376 | 1, 2, 0, |
af52c32d | 2377 | doc: /* Display the list of completions, COMPLETIONS, using `standard-output'. |
a1f17501 PJ |
2378 | Each element may be just a symbol or string |
2379 | or may be a list of two strings to be printed as if concatenated. | |
b0c138ce LT |
2380 | If it is a list of two strings, the first is the actual completion |
2381 | alternative, the second serves as annotation. | |
a1f17501 PJ |
2382 | `standard-output' must be a buffer. |
2383 | The actual completion alternatives, as inserted, are given `mouse-face' | |
2384 | properties of `highlight'. | |
2385 | At the end, this runs the normal hook `completion-setup-hook'. | |
d6ae289c KS |
2386 | It can find the completion buffer in `standard-output'. |
2387 | The optional second arg COMMON-SUBSTRING is a string. | |
128e729d | 2388 | It is used to put faces, `completions-first-difference' and |
26e9d2cf | 2389 | `completions-common-part' on the completion buffer. The |
f5fab556 | 2390 | `completions-common-part' face is put on the common substring |
b5e1e449 JL |
2391 | specified by COMMON-SUBSTRING. If COMMON-SUBSTRING is nil |
2392 | and the current buffer is not the minibuffer, the faces are not put. | |
d6ae289c | 2393 | Internally, COMMON-SUBSTRING is bound to `completion-common-substring' |
f5fab556 MY |
2394 | during running `completion-setup-hook'. */) |
2395 | (completions, common_substring) | |
f927c5ae | 2396 | Lisp_Object completions; |
f5fab556 | 2397 | Lisp_Object common_substring; |
f927c5ae | 2398 | { |
dae36123 | 2399 | Lisp_Object tail, elt; |
f927c5ae | 2400 | register int i; |
2dc2b736 | 2401 | int column = 0; |
f5fab556 | 2402 | struct gcpro gcpro1, gcpro2, gcpro3; |
2dc2b736 | 2403 | struct buffer *old = current_buffer; |
681f5af4 | 2404 | int first = 1; |
486cc7fb RS |
2405 | |
2406 | /* Note that (when it matters) every variable | |
dae36123 RS |
2407 | points to a non-string that is pointed to by COMPLETIONS, |
2408 | except for ELT. ELT can be pointing to a string | |
2409 | when terpri or Findent_to calls a change hook. */ | |
2410 | elt = Qnil; | |
f5fab556 | 2411 | GCPRO3 (completions, elt, common_substring); |
486cc7fb | 2412 | |
7510b296 | 2413 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 2414 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 2415 | |
56a98455 | 2416 | if (NILP (completions)) |
cfc736bf RS |
2417 | write_string ("There are no possible completions of what you have typed.", |
2418 | -1); | |
f927c5ae JB |
2419 | else |
2420 | { | |
2dc2b736 | 2421 | write_string ("Possible completions are:", -1); |
a425bd03 | 2422 | for (tail = completions, i = 0; CONSP (tail); tail = XCDR (tail), i++) |
f927c5ae | 2423 | { |
ec067ec7 | 2424 | Lisp_Object tem, string; |
681f5af4 | 2425 | int length; |
47d7d104 | 2426 | Lisp_Object startpos, endpos; |
681f5af4 | 2427 | |
6bbd7a29 GM |
2428 | startpos = Qnil; |
2429 | ||
a425bd03 | 2430 | elt = XCAR (tail); |
b0c138ce LT |
2431 | if (SYMBOLP (elt)) |
2432 | elt = SYMBOL_NAME (elt); | |
681f5af4 RS |
2433 | /* Compute the length of this element. */ |
2434 | if (CONSP (elt)) | |
2435 | { | |
49db96ce | 2436 | tem = XCAR (elt); |
b7826503 | 2437 | CHECK_STRING (tem); |
d5db4077 | 2438 | length = SCHARS (tem); |
681f5af4 | 2439 | |
49db96ce | 2440 | tem = Fcar (XCDR (elt)); |
b7826503 | 2441 | CHECK_STRING (tem); |
d5db4077 | 2442 | length += SCHARS (tem); |
681f5af4 RS |
2443 | } |
2444 | else | |
2445 | { | |
b7826503 | 2446 | CHECK_STRING (elt); |
d5db4077 | 2447 | length = SCHARS (elt); |
681f5af4 RS |
2448 | } |
2449 | ||
2450 | /* This does a bad job for narrower than usual windows. | |
2451 | Sadly, the window it will appear in is not known | |
2452 | until after the text has been made. */ | |
2453 | ||
47d7d104 RS |
2454 | if (BUFFERP (Vstandard_output)) |
2455 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2456 | ||
681f5af4 RS |
2457 | /* If the previous completion was very wide, |
2458 | or we have two on this line already, | |
2459 | don't put another on the same line. */ | |
2460 | if (column > 33 || first | |
2461 | /* If this is really wide, don't put it second on a line. */ | |
13c67cc6 | 2462 | || (column > 0 && length > 45)) |
681f5af4 RS |
2463 | { |
2464 | Fterpri (Qnil); | |
2465 | column = 0; | |
2466 | } | |
2467 | /* Otherwise advance to column 35. */ | |
2468 | else | |
2dc2b736 | 2469 | { |
7510b296 | 2470 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
2471 | { |
2472 | tem = Findent_to (make_number (35), make_number (2)); | |
9ab4a725 | 2473 | |
681f5af4 RS |
2474 | column = XINT (tem); |
2475 | } | |
2dc2b736 RS |
2476 | else |
2477 | { | |
2478 | do | |
2479 | { | |
2480 | write_string (" ", -1); | |
2481 | column++; | |
2482 | } | |
2483 | while (column < 35); | |
2484 | } | |
2485 | } | |
681f5af4 | 2486 | |
47d7d104 RS |
2487 | if (BUFFERP (Vstandard_output)) |
2488 | { | |
2489 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2490 | Fset_text_properties (startpos, endpos, | |
2491 | Qnil, Vstandard_output); | |
2492 | } | |
2493 | ||
ec067ec7 | 2494 | /* Output this element. |
9404446f | 2495 | If necessary, convert it to unibyte or to multibyte first. */ |
f927c5ae | 2496 | if (CONSP (elt)) |
ec067ec7 | 2497 | string = Fcar (elt); |
f927c5ae | 2498 | else |
ec067ec7 RS |
2499 | string = elt; |
2500 | if (NILP (current_buffer->enable_multibyte_characters) | |
2501 | && STRING_MULTIBYTE (string)) | |
2502 | string = Fstring_make_unibyte (string); | |
9404446f RS |
2503 | else if (!NILP (current_buffer->enable_multibyte_characters) |
2504 | && !STRING_MULTIBYTE (string)) | |
2505 | string = Fstring_make_multibyte (string); | |
5744fa7c RS |
2506 | |
2507 | if (BUFFERP (Vstandard_output)) | |
2508 | { | |
4b37311e | 2509 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c RS |
2510 | |
2511 | Fprinc (string, Qnil); | |
2512 | ||
4b37311e | 2513 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c | 2514 | |
4b37311e | 2515 | Fput_text_property (startpos, endpos, |
5744fa7c RS |
2516 | Qmouse_face, intern ("highlight"), |
2517 | Vstandard_output); | |
2518 | } | |
2519 | else | |
2520 | { | |
2521 | Fprinc (string, Qnil); | |
2522 | } | |
ec067ec7 RS |
2523 | |
2524 | /* Output the annotation for this element. */ | |
2525 | if (CONSP (elt)) | |
4b37311e RS |
2526 | { |
2527 | if (BUFFERP (Vstandard_output)) | |
2528 | { | |
2529 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2530 | ||
2531 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2532 | ||
2533 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2534 | ||
2535 | Fset_text_properties (startpos, endpos, Qnil, | |
2536 | Vstandard_output); | |
2537 | } | |
2538 | else | |
2539 | { | |
2540 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2541 | } | |
2542 | } | |
2543 | ||
681f5af4 | 2544 | |
ec067ec7 | 2545 | /* Update COLUMN for what we have output. */ |
681f5af4 RS |
2546 | column += length; |
2547 | ||
2548 | /* If output is to a buffer, recompute COLUMN in a way | |
2549 | that takes account of character widths. */ | |
2550 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 2551 | { |
681f5af4 RS |
2552 | tem = Fcurrent_column (); |
2553 | column = XINT (tem); | |
2dc2b736 | 2554 | } |
681f5af4 RS |
2555 | |
2556 | first = 0; | |
f927c5ae JB |
2557 | } |
2558 | } | |
2dc2b736 | 2559 | |
7510b296 | 2560 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
2561 | set_buffer_internal (old); |
2562 | ||
cfc736bf | 2563 | if (!NILP (Vrun_hooks)) |
f5fab556 MY |
2564 | { |
2565 | int count1 = SPECPDL_INDEX (); | |
2566 | ||
2567 | specbind (intern ("completion-common-substring"), common_substring); | |
2568 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
d6ae289c | 2569 | |
f5fab556 MY |
2570 | unbind_to (count1, Qnil); |
2571 | } | |
2572 | ||
2573 | UNGCPRO; | |
cfc736bf | 2574 | |
f927c5ae JB |
2575 | return Qnil; |
2576 | } | |
2577 | ||
d6ae289c KS |
2578 | |
2579 | static Lisp_Object | |
2580 | display_completion_list_1 (list) | |
2581 | Lisp_Object list; | |
2582 | { | |
b5e1e449 | 2583 | return Fdisplay_completion_list (list, Qnil); |
d6ae289c KS |
2584 | } |
2585 | ||
f927c5ae | 2586 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, |
94c7167b | 2587 | 0, 0, "", |
af52c32d MB |
2588 | doc: /* Display a list of possible completions of the current minibuffer contents. */) |
2589 | () | |
f927c5ae JB |
2590 | { |
2591 | Lisp_Object completions; | |
2592 | ||
2593 | message ("Making completion list..."); | |
b5e1e449 | 2594 | completions = Fall_completions (Fminibuffer_completion_contents (), |
f927c5ae | 2595 | Vminibuffer_completion_table, |
89a255dc RS |
2596 | Vminibuffer_completion_predicate, |
2597 | Qt); | |
39e98b38 | 2598 | clear_message (1, 0); |
f927c5ae | 2599 | |
56a98455 | 2600 | if (NILP (completions)) |
f927c5ae JB |
2601 | { |
2602 | bitch_at_user (); | |
805221da | 2603 | temp_echo_area_glyphs (build_string (" [No completions]")); |
f927c5ae JB |
2604 | } |
2605 | else | |
a425bd03 SM |
2606 | { |
2607 | /* Sort and remove duplicates. */ | |
2608 | Lisp_Object tmp = completions = Fsort (completions, Qstring_lessp); | |
2609 | while (CONSP (tmp)) | |
2610 | { | |
2611 | if (CONSP (XCDR (tmp)) | |
2612 | && !NILP (Fequal (XCAR (tmp), XCAR (XCDR (tmp))))) | |
2613 | XSETCDR (tmp, XCDR (XCDR (tmp))); | |
2614 | else | |
2615 | tmp = XCDR (tmp); | |
2616 | } | |
2617 | internal_with_output_to_temp_buffer ("*Completions*", | |
2618 | display_completion_list_1, | |
2619 | completions); | |
2620 | } | |
f927c5ae JB |
2621 | return Qnil; |
2622 | } | |
2623 | \f | |
2624 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
af52c32d MB |
2625 | doc: /* Terminate minibuffer input. */) |
2626 | () | |
f927c5ae | 2627 | { |
7510b296 | 2628 | if (INTEGERP (last_command_char)) |
dab3ab3c | 2629 | internal_self_insert (XINT (last_command_char), 0); |
f927c5ae JB |
2630 | else |
2631 | bitch_at_user (); | |
2632 | ||
d850b038 | 2633 | return Fexit_minibuffer (); |
f927c5ae JB |
2634 | } |
2635 | ||
2636 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
af52c32d MB |
2637 | doc: /* Terminate this minibuffer argument. */) |
2638 | () | |
f927c5ae | 2639 | { |
d850b038 SM |
2640 | /* If the command that uses this has made modifications in the minibuffer, |
2641 | we don't want them to cause deactivation of the mark in the original | |
2642 | buffer. | |
2643 | A better solution would be to make deactivate-mark buffer-local | |
2644 | (or to turn it into a list of buffers, ...), but in the mean time, | |
2645 | this should do the trick in most cases. */ | |
2646 | Vdeactivate_mark = Qnil; | |
2647 | Fthrow (Qexit, Qnil); | |
f927c5ae JB |
2648 | } |
2649 | ||
2650 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
af52c32d MB |
2651 | doc: /* Return current depth of activations of minibuffer, a nonnegative integer. */) |
2652 | () | |
f927c5ae JB |
2653 | { |
2654 | return make_number (minibuf_level); | |
2655 | } | |
2656 | ||
37e9a934 | 2657 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
af52c32d MB |
2658 | doc: /* Return the prompt string of the currently-active minibuffer. |
2659 | If no minibuffer is active, return nil. */) | |
2660 | () | |
37e9a934 | 2661 | { |
4d04c1f1 | 2662 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
2663 | } |
2664 | ||
f927c5ae | 2665 | \f |
805221da | 2666 | /* Temporarily display STRING at the end of the current |
2d955a50 RS |
2667 | minibuffer contents. This is used to display things like |
2668 | "[No Match]" when the user requests a completion for a prefix | |
2669 | that has no possible completions, and other quick, unobtrusive | |
2670 | messages. */ | |
2671 | ||
9d815fd9 | 2672 | void |
805221da KH |
2673 | temp_echo_area_glyphs (string) |
2674 | Lisp_Object string; | |
2d955a50 RS |
2675 | { |
2676 | int osize = ZV; | |
a9c26562 | 2677 | int osize_byte = ZV_BYTE; |
2d955a50 | 2678 | int opoint = PT; |
a9c26562 | 2679 | int opoint_byte = PT_BYTE; |
2d955a50 RS |
2680 | Lisp_Object oinhibit; |
2681 | oinhibit = Vinhibit_quit; | |
2682 | ||
2683 | /* Clear out any old echo-area message to make way for our new thing. */ | |
2684 | message (0); | |
2685 | ||
a9c26562 | 2686 | SET_PT_BOTH (osize, osize_byte); |
805221da | 2687 | insert_from_string (string, 0, 0, SCHARS (string), SBYTES (string), 0); |
a9c26562 | 2688 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2689 | Vinhibit_quit = Qt; |
2690 | Fsit_for (make_number (2), Qnil, Qnil); | |
bc69581b | 2691 | del_range_both (osize, osize_byte, ZV, ZV_BYTE, 1); |
a9c26562 | 2692 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2693 | if (!NILP (Vquit_flag)) |
2694 | { | |
2695 | Vquit_flag = Qnil; | |
2696 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
2697 | } | |
2698 | Vinhibit_quit = oinhibit; | |
2699 | } | |
2700 | ||
2701 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
94c7167b | 2702 | 1, 1, 0, |
af52c32d | 2703 | doc: /* Temporarily display STRING at the end of the minibuffer. |
1d69c502 | 2704 | The text is displayed for a period controlled by `minibuffer-message-timeout', |
af52c32d MB |
2705 | or until the next input event arrives, whichever comes first. */) |
2706 | (string) | |
2d955a50 RS |
2707 | Lisp_Object string; |
2708 | { | |
1a9e275b | 2709 | CHECK_STRING (string); |
805221da | 2710 | temp_echo_area_glyphs (string); |
2d955a50 RS |
2711 | return Qnil; |
2712 | } | |
2713 | \f | |
9d815fd9 | 2714 | void |
f927c5ae JB |
2715 | init_minibuf_once () |
2716 | { | |
2717 | Vminibuffer_list = Qnil; | |
2718 | staticpro (&Vminibuffer_list); | |
2719 | } | |
2720 | ||
9d815fd9 | 2721 | void |
f927c5ae JB |
2722 | syms_of_minibuf () |
2723 | { | |
2724 | minibuf_level = 0; | |
4d04c1f1 KH |
2725 | minibuf_prompt = Qnil; |
2726 | staticpro (&minibuf_prompt); | |
2727 | ||
2728 | minibuf_save_list = Qnil; | |
2729 | staticpro (&minibuf_save_list); | |
f927c5ae | 2730 | |
719b4a40 RS |
2731 | Qread_file_name_internal = intern ("read-file-name-internal"); |
2732 | staticpro (&Qread_file_name_internal); | |
2733 | ||
e5d4686b RS |
2734 | Qminibuffer_default = intern ("minibuffer-default"); |
2735 | staticpro (&Qminibuffer_default); | |
2736 | Fset (Qminibuffer_default, Qnil); | |
2737 | ||
f927c5ae JB |
2738 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
2739 | staticpro (&Qminibuffer_completion_table); | |
2740 | ||
2741 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
2742 | staticpro (&Qminibuffer_completion_confirm); | |
2743 | ||
2744 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
2745 | staticpro (&Qminibuffer_completion_predicate); | |
2746 | ||
1e00c2ff KH |
2747 | staticpro (&last_exact_completion); |
2748 | last_exact_completion = Qnil; | |
2749 | ||
f927c5ae JB |
2750 | staticpro (&last_minibuf_string); |
2751 | last_minibuf_string = Qnil; | |
2752 | ||
2753 | Quser_variable_p = intern ("user-variable-p"); | |
2754 | staticpro (&Quser_variable_p); | |
2755 | ||
770970cb RS |
2756 | Qminibuffer_history = intern ("minibuffer-history"); |
2757 | staticpro (&Qminibuffer_history); | |
f927c5ae | 2758 | |
406e55df RS |
2759 | Qbuffer_name_history = intern ("buffer-name-history"); |
2760 | staticpro (&Qbuffer_name_history); | |
33d0a17f | 2761 | Fset (Qbuffer_name_history, Qnil); |
406e55df | 2762 | |
5c781212 RS |
2763 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
2764 | staticpro (&Qminibuffer_setup_hook); | |
2765 | ||
177aecf9 KH |
2766 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
2767 | staticpro (&Qminibuffer_exit_hook); | |
2768 | ||
77aa8edf RS |
2769 | Qhistory_length = intern ("history-length"); |
2770 | staticpro (&Qhistory_length); | |
2771 | ||
cee54539 KH |
2772 | Qcurrent_input_method = intern ("current-input-method"); |
2773 | staticpro (&Qcurrent_input_method); | |
2774 | ||
2775 | Qactivate_input_method = intern ("activate-input-method"); | |
2776 | staticpro (&Qactivate_input_method); | |
2777 | ||
b0c138ce LT |
2778 | Qcase_fold_search = intern ("case-fold-search"); |
2779 | staticpro (&Qcase_fold_search); | |
2780 | ||
af52c32d MB |
2781 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2782 | doc: /* If this is non-nil, `read-buffer' does its work by calling this function. */); | |
eebbfb01 KH |
2783 | Vread_buffer_function = Qnil; |
2784 | ||
af52c32d MB |
2785 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2786 | doc: /* Normal hook run just after entry to minibuffer. */); | |
5c781212 RS |
2787 | Vminibuffer_setup_hook = Qnil; |
2788 | ||
af52c32d MB |
2789 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2790 | doc: /* Normal hook run just after exit from minibuffer. */); | |
177aecf9 KH |
2791 | Vminibuffer_exit_hook = Qnil; |
2792 | ||
af52c32d MB |
2793 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2794 | doc: /* *Maximum length for history lists before truncation takes place. | |
a1f17501 | 2795 | A number means that length; t means infinite. Truncation takes place |
f4b46bb9 | 2796 | just after a new element is inserted. Setting the `history-length' |
a1f17501 | 2797 | property of a history variable overrides this default. */); |
77aa8edf RS |
2798 | XSETFASTINT (Vhistory_length, 30); |
2799 | ||
0da4d471 JL |
2800 | DEFVAR_BOOL ("history-delete-duplicates", &history_delete_duplicates, |
2801 | doc: /* *Non-nil means to delete duplicates in history. | |
2802 | If set to t when adding a new history element, all previous identical | |
2803 | elements are deleted. */); | |
2804 | history_delete_duplicates = 0; | |
2805 | ||
af52c32d | 2806 | DEFVAR_LISP ("completion-auto-help", &Vcompletion_auto_help, |
0ca23eef EZ |
2807 | doc: /* *Non-nil means automatically provide help for invalid completion input. |
2808 | Under Partial Completion mode, a non-nil, non-t value has a special meaning; | |
2809 | see the doc string of `partial-completion-mode' for more details. */); | |
739cc391 | 2810 | Vcompletion_auto_help = Qt; |
f927c5ae | 2811 | |
af52c32d | 2812 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, |
75028673 JPW |
2813 | doc: /* Non-nil means don't consider case significant in completion. |
2814 | ||
d9a03ad2 RS |
2815 | For file-name completion, the variable `read-file-name-completion-ignore-case' |
2816 | controls the behavior, rather than this variable. */); | |
f927c5ae JB |
2817 | completion_ignore_case = 0; |
2818 | ||
af52c32d MB |
2819 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, |
2820 | doc: /* *Non-nil means to allow minibuffer commands while in the minibuffer. | |
a1f17501 | 2821 | This variable makes a difference whenever the minibuffer window is active. */); |
f927c5ae JB |
2822 | enable_recursive_minibuffers = 0; |
2823 | ||
af52c32d MB |
2824 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, |
2825 | doc: /* Alist or obarray used for completion in the minibuffer. | |
b0c138ce LT |
2826 | This becomes the ALIST argument to `try-completion' and `all-completions'. |
2827 | The value can also be a list of strings or a hash table. | |
a1f17501 PJ |
2828 | |
2829 | The value may alternatively be a function, which is given three arguments: | |
2830 | STRING, the current buffer contents; | |
2831 | PREDICATE, the predicate for filtering possible matches; | |
2832 | CODE, which says what kind of things to do. | |
2833 | CODE can be nil, t or `lambda'. | |
2834 | nil means to return the best completion of STRING, or nil if there is none. | |
2835 | t means to return a list of all possible completions of STRING. | |
2836 | `lambda' means to return t if STRING is a valid completion as it stands. */); | |
f927c5ae JB |
2837 | Vminibuffer_completion_table = Qnil; |
2838 | ||
af52c32d MB |
2839 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, |
2840 | doc: /* Within call to `completing-read', this holds the PREDICATE argument. */); | |
f927c5ae JB |
2841 | Vminibuffer_completion_predicate = Qnil; |
2842 | ||
af52c32d | 2843 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, |
fd771ceb | 2844 | doc: /* Non-nil means to demand confirmation of completion before exiting minibuffer. */); |
f927c5ae JB |
2845 | Vminibuffer_completion_confirm = Qnil; |
2846 | ||
ccf330a6 | 2847 | DEFVAR_LISP ("minibuffer-completing-file-name", |
af52c32d MB |
2848 | &Vminibuffer_completing_file_name, |
2849 | doc: /* Non-nil means completing file names. */); | |
ccf330a6 RS |
2850 | Vminibuffer_completing_file_name = Qnil; |
2851 | ||
af52c32d MB |
2852 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, |
2853 | doc: /* Value that `help-form' takes on inside the minibuffer. */); | |
f927c5ae JB |
2854 | Vminibuffer_help_form = Qnil; |
2855 | ||
af52c32d MB |
2856 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2857 | doc: /* History list symbol to add minibuffer values to. | |
a1f17501 PJ |
2858 | Each string of minibuffer input, as it appears on exit from the minibuffer, |
2859 | is added with | |
2860 | (set minibuffer-history-variable | |
2861 | (cons STRING (symbol-value minibuffer-history-variable))) */); | |
5a866662 | 2862 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb | 2863 | |
af52c32d MB |
2864 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, |
2865 | doc: /* Current position of redoing in the history list. */); | |
770970cb RS |
2866 | Vminibuffer_history_position = Qnil; |
2867 | ||
af52c32d MB |
2868 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
2869 | doc: /* *Non-nil means entering the minibuffer raises the minibuffer's frame. | |
a1f17501 | 2870 | Some uses of the echo area also raise that frame (since they use it too). */); |
6a9ee000 RS |
2871 | minibuffer_auto_raise = 0; |
2872 | ||
af52c32d | 2873 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
b0c138ce LT |
2874 | doc: /* List of regexps that should restrict possible completions. |
2875 | The basic completion functions only consider a completion acceptable | |
2876 | if it matches all regular expressions in this list, with | |
2877 | `case-fold-search' bound to the value of `completion-ignore-case'. | |
2878 | See Info node `(elisp)Basic Completion', for a description of these | |
2879 | functions. */); | |
42006772 RS |
2880 | Vcompletion_regexp_list = Qnil; |
2881 | ||
c3421833 | 2882 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
af52c32d MB |
2883 | &minibuffer_allow_text_properties, |
2884 | doc: /* Non-nil means `read-from-minibuffer' should not discard text properties. | |
a1f17501 PJ |
2885 | This also affects `read-string', but it does not affect `read-minibuffer', |
2886 | `read-no-blanks-input', or any of the functions that do minibuffer input | |
2887 | with completion; they always discard text properties. */); | |
c3421833 RS |
2888 | minibuffer_allow_text_properties = 0; |
2889 | ||
af52c32d MB |
2890 | DEFVAR_LISP ("minibuffer-prompt-properties", &Vminibuffer_prompt_properties, |
2891 | doc: /* Text properties that are added to minibuffer prompts. | |
a1f17501 PJ |
2892 | These are in addition to the basic `field' property, and stickiness |
2893 | properties. */); | |
cc64f5c9 MB |
2894 | /* We use `intern' here instead of Qread_only to avoid |
2895 | initialization-order problems. */ | |
2896 | Vminibuffer_prompt_properties | |
2897 | = Fcons (intern ("read-only"), Fcons (Qt, Qnil)); | |
2898 | ||
68313ed8 | 2899 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2900 | defsubr (&Sread_from_minibuffer); |
2901 | defsubr (&Seval_minibuffer); | |
2902 | defsubr (&Sread_minibuffer); | |
2903 | defsubr (&Sread_string); | |
2904 | defsubr (&Sread_command); | |
2905 | defsubr (&Sread_variable); | |
2906 | defsubr (&Sread_buffer); | |
2907 | defsubr (&Sread_no_blanks_input); | |
2908 | defsubr (&Sminibuffer_depth); | |
37e9a934 | 2909 | defsubr (&Sminibuffer_prompt); |
f927c5ae | 2910 | |
873ef78e | 2911 | defsubr (&Sminibufferp); |
a346ec72 MB |
2912 | defsubr (&Sminibuffer_prompt_end); |
2913 | defsubr (&Sminibuffer_contents); | |
2914 | defsubr (&Sminibuffer_contents_no_properties); | |
b5e1e449 | 2915 | defsubr (&Sminibuffer_completion_contents); |
a346ec72 MB |
2916 | defsubr (&Sdelete_minibuffer_contents); |
2917 | ||
f927c5ae JB |
2918 | defsubr (&Stry_completion); |
2919 | defsubr (&Sall_completions); | |
695deb18 SM |
2920 | defsubr (&Stest_completion); |
2921 | defsubr (&Sassoc_string); | |
f927c5ae JB |
2922 | defsubr (&Scompleting_read); |
2923 | defsubr (&Sminibuffer_complete); | |
2924 | defsubr (&Sminibuffer_complete_word); | |
2925 | defsubr (&Sminibuffer_complete_and_exit); | |
2926 | defsubr (&Sdisplay_completion_list); | |
2927 | defsubr (&Sminibuffer_completion_help); | |
2928 | ||
2929 | defsubr (&Sself_insert_and_exit); | |
2930 | defsubr (&Sexit_minibuffer); | |
2931 | ||
2d955a50 | 2932 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2933 | } |
2934 | ||
9d815fd9 | 2935 | void |
f927c5ae JB |
2936 | keys_of_minibuf () |
2937 | { | |
2938 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2939 | "abort-recursive-edit"); | |
2940 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2941 | "exit-minibuffer"); | |
2942 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2943 | "exit-minibuffer"); | |
2944 | ||
f927c5ae JB |
2945 | initial_define_key (Vminibuffer_local_ns_map, ' ', |
2946 | "exit-minibuffer"); | |
2947 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2948 | "exit-minibuffer"); | |
2949 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2950 | "self-insert-and-exit"); | |
2951 | ||
f927c5ae JB |
2952 | initial_define_key (Vminibuffer_local_completion_map, '\t', |
2953 | "minibuffer-complete"); | |
2954 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2955 | "minibuffer-complete-word"); | |
2956 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2957 | "minibuffer-completion-help"); | |
2958 | ||
da8ec671 SM |
2959 | Fdefine_key (Vminibuffer_local_filename_completion_map, |
2960 | build_string (" "), Qnil); | |
bb0bdf70 | 2961 | |
f927c5ae JB |
2962 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), |
2963 | "minibuffer-complete-and-exit"); | |
2964 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2965 | "minibuffer-complete-and-exit"); | |
bb0bdf70 | 2966 | |
5203cd03 JL |
2967 | Fdefine_key (Vminibuffer_local_must_match_filename_map, |
2968 | build_string (" "), Qnil); | |
f927c5ae | 2969 | } |
ab5796a9 MB |
2970 | |
2971 | /* arch-tag: 8f69b601-fba3-484c-a6dd-ceaee54a7a73 | |
2972 | (do not change this comment) */ |