Commit | Line | Data |
---|---|---|
f927c5ae | 1 | /* Minibuffer input and completion. |
526a058f GM |
2 | Copyright (C) 1985, 1986, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
3 | 2000, 2001 Free Software Foundation, Inc. | |
f927c5ae JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ffd56f97 | 9 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
f927c5ae JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
3f708f4c | 24 | #include <stdio.h> |
f927c5ae JB |
25 | #include "lisp.h" |
26 | #include "commands.h" | |
27 | #include "buffer.h" | |
d50a3d2a | 28 | #include "charset.h" |
f927c5ae | 29 | #include "dispextern.h" |
2538fae4 | 30 | #include "keyboard.h" |
ff11dfa1 | 31 | #include "frame.h" |
f927c5ae JB |
32 | #include "window.h" |
33 | #include "syntax.h" | |
0c21eeeb | 34 | #include "intervals.h" |
f927c5ae JB |
35 | |
36 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
37 | ||
a4e71d81 KH |
38 | extern int quit_char; |
39 | ||
f927c5ae | 40 | /* List of buffers for use as minibuffers. |
4d04c1f1 KH |
41 | The first element of the list is used for the outermost minibuffer |
42 | invocation, the next element is used for a recursive minibuffer | |
43 | invocation, etc. The list is extended at the end as deeper | |
44 | minibuffer recursions are encountered. */ | |
279cf52c | 45 | |
f927c5ae JB |
46 | Lisp_Object Vminibuffer_list; |
47 | ||
4d04c1f1 | 48 | /* Data to remember during recursive minibuffer invocations */ |
279cf52c | 49 | |
4d04c1f1 | 50 | Lisp_Object minibuf_save_list; |
f927c5ae JB |
51 | |
52 | /* Depth in minibuffer invocations. */ | |
279cf52c | 53 | |
f927c5ae JB |
54 | int minibuf_level; |
55 | ||
77aa8edf | 56 | /* Nonzero means display completion help for invalid input. */ |
279cf52c | 57 | |
739cc391 | 58 | Lisp_Object Vcompletion_auto_help; |
f927c5ae | 59 | |
77aa8edf | 60 | /* The maximum length of a minibuffer history. */ |
279cf52c | 61 | |
77aa8edf RS |
62 | Lisp_Object Qhistory_length, Vhistory_length; |
63 | ||
b278606c | 64 | /* Fread_minibuffer leaves the input here as a string. */ |
279cf52c | 65 | |
f927c5ae JB |
66 | Lisp_Object last_minibuf_string; |
67 | ||
68 | /* Nonzero means let functions called when within a minibuffer | |
69 | invoke recursive minibuffers (to read arguments, or whatever) */ | |
279cf52c | 70 | |
f927c5ae JB |
71 | int enable_recursive_minibuffers; |
72 | ||
c3421833 RS |
73 | /* Nonzero means don't ignore text properties |
74 | in Fread_from_minibuffer. */ | |
279cf52c | 75 | |
c3421833 RS |
76 | int minibuffer_allow_text_properties; |
77 | ||
f927c5ae JB |
78 | /* help-form is bound to this while in the minibuffer. */ |
79 | ||
80 | Lisp_Object Vminibuffer_help_form; | |
81 | ||
770970cb RS |
82 | /* Variable which is the history list to add minibuffer values to. */ |
83 | ||
84 | Lisp_Object Vminibuffer_history_variable; | |
85 | ||
86 | /* Current position in the history list (adjusted by M-n and M-p). */ | |
87 | ||
88 | Lisp_Object Vminibuffer_history_position; | |
89 | ||
cc64f5c9 MB |
90 | /* Text properties that are added to minibuffer prompts. |
91 | These are in addition to the basic `field' property, and stickiness | |
92 | properties. */ | |
93 | ||
94 | Lisp_Object Vminibuffer_prompt_properties; | |
95 | ||
406e55df | 96 | Lisp_Object Qminibuffer_history, Qbuffer_name_history; |
770970cb | 97 | |
719b4a40 RS |
98 | Lisp_Object Qread_file_name_internal; |
99 | ||
177aecf9 | 100 | /* Normal hooks for entry to and exit from minibuffer. */ |
5c781212 RS |
101 | |
102 | Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook; | |
177aecf9 | 103 | Lisp_Object Qminibuffer_exit_hook, Vminibuffer_exit_hook; |
5c781212 | 104 | |
eebbfb01 KH |
105 | /* Function to call to read a buffer name. */ |
106 | Lisp_Object Vread_buffer_function; | |
107 | ||
f927c5ae JB |
108 | /* Nonzero means completion ignores case. */ |
109 | ||
110 | int completion_ignore_case; | |
111 | ||
42006772 RS |
112 | /* List of regexps that should restrict possible completions. */ |
113 | ||
114 | Lisp_Object Vcompletion_regexp_list; | |
115 | ||
6a9ee000 RS |
116 | /* Nonzero means raise the minibuffer frame when the minibuffer |
117 | is entered. */ | |
118 | ||
119 | int minibuffer_auto_raise; | |
120 | ||
f927c5ae JB |
121 | /* If last completion attempt reported "Complete but not unique" |
122 | then this is the string completed then; otherwise this is nil. */ | |
123 | ||
124 | static Lisp_Object last_exact_completion; | |
125 | ||
2cb6da5c RS |
126 | /* Non-nil means it is the window for C-M-v to scroll |
127 | when the minibuffer is selected. */ | |
279cf52c | 128 | |
2cb6da5c | 129 | extern Lisp_Object Vminibuf_scroll_window; |
30e13e56 RS |
130 | |
131 | extern Lisp_Object Voverriding_local_map; | |
cee54539 | 132 | |
5744fa7c RS |
133 | Lisp_Object Quser_variable_p; |
134 | ||
135 | Lisp_Object Qminibuffer_default; | |
136 | ||
cee54539 KH |
137 | Lisp_Object Qcurrent_input_method, Qactivate_input_method; |
138 | ||
5744fa7c | 139 | extern Lisp_Object Qmouse_face; |
279cf52c | 140 | |
8e9968c6 | 141 | extern Lisp_Object Qfield; |
f927c5ae | 142 | \f |
89fdc4a0 KH |
143 | /* Put minibuf on currently selected frame's minibuffer. |
144 | We do this whenever the user starts a new minibuffer | |
145 | or when a minibuffer exits. */ | |
146 | ||
147 | void | |
148 | choose_minibuf_frame () | |
149 | { | |
a4aafc54 GM |
150 | if (FRAMEP (selected_frame) |
151 | && FRAME_LIVE_P (XFRAME (selected_frame)) | |
152 | && !EQ (minibuf_window, XFRAME (selected_frame)->minibuffer_window)) | |
89fdc4a0 | 153 | { |
a4aafc54 GM |
154 | struct frame *sf = XFRAME (selected_frame); |
155 | Lisp_Object buffer; | |
156 | ||
89fdc4a0 KH |
157 | /* I don't think that any frames may validly have a null minibuffer |
158 | window anymore. */ | |
a4aafc54 | 159 | if (NILP (sf->minibuffer_window)) |
89fdc4a0 KH |
160 | abort (); |
161 | ||
a4aafc54 GM |
162 | /* Under X, we come here with minibuf_window being the |
163 | minibuffer window of the unused termcap window created in | |
164 | init_window_once. That window doesn't have a buffer. */ | |
165 | buffer = XWINDOW (minibuf_window)->buffer; | |
166 | if (BUFFERP (buffer)) | |
167 | Fset_window_buffer (sf->minibuffer_window, buffer); | |
168 | minibuf_window = sf->minibuffer_window; | |
89fdc4a0 | 169 | } |
914860c2 RS |
170 | |
171 | /* Make sure no other frame has a minibuffer as its selected window, | |
172 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
173 | confusing. Only allow the selected frame to do this, |
174 | and that only if the minibuffer is active. */ | |
914860c2 RS |
175 | { |
176 | Lisp_Object tail, frame; | |
177 | ||
178 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 | 179 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
a4aafc54 | 180 | && !(EQ (frame, selected_frame) |
07d402c8 | 181 | && minibuf_level > 0)) |
914860c2 RS |
182 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
183 | } | |
89fdc4a0 | 184 | } |
68313ed8 | 185 | |
0c94f256 RS |
186 | Lisp_Object |
187 | choose_minibuf_frame_1 (ignore) | |
188 | Lisp_Object ignore; | |
189 | { | |
190 | choose_minibuf_frame (); | |
191 | return Qnil; | |
192 | } | |
193 | ||
68313ed8 RS |
194 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
195 | Sset_minibuffer_window, 1, 1, 0, | |
196 | "Specify which minibuffer window to use for the minibuffer.\n\ | |
197 | This effects where the minibuffer is displayed if you put text in it\n\ | |
198 | without invoking the usual minibuffer commands.") | |
199 | (window) | |
200 | Lisp_Object window; | |
201 | { | |
202 | CHECK_WINDOW (window, 1); | |
203 | if (! MINI_WINDOW_P (XWINDOW (window))) | |
204 | error ("Window is not a minibuffer window"); | |
205 | ||
206 | minibuf_window = window; | |
207 | ||
208 | return window; | |
209 | } | |
210 | ||
89fdc4a0 | 211 | \f |
f927c5ae JB |
212 | /* Actual minibuffer invocation. */ |
213 | ||
af2b7cd5 RS |
214 | static Lisp_Object read_minibuf_unwind P_ ((Lisp_Object)); |
215 | static Lisp_Object read_minibuf P_ ((Lisp_Object, Lisp_Object, | |
216 | Lisp_Object, Lisp_Object, | |
217 | int, Lisp_Object, | |
218 | Lisp_Object, Lisp_Object, | |
219 | int, int)); | |
edfef199 GM |
220 | static Lisp_Object read_minibuf_noninteractive P_ ((Lisp_Object, Lisp_Object, |
221 | Lisp_Object, Lisp_Object, | |
222 | int, Lisp_Object, | |
223 | Lisp_Object, Lisp_Object, | |
224 | int, int)); | |
225 | static Lisp_Object string_to_object P_ ((Lisp_Object, Lisp_Object)); | |
226 | ||
227 | ||
228 | /* Read a Lisp object from VAL and return it. If VAL is an empty | |
229 | string, and DEFALT is a string, read from DEFALT instead of VAL. */ | |
230 | ||
231 | static Lisp_Object | |
232 | string_to_object (val, defalt) | |
233 | Lisp_Object val, defalt; | |
234 | { | |
235 | struct gcpro gcpro1, gcpro2; | |
236 | Lisp_Object expr_and_pos; | |
237 | int pos; | |
238 | ||
239 | GCPRO2 (val, defalt); | |
240 | ||
241 | if (STRINGP (val) && XSTRING (val)->size == 0 | |
242 | && STRINGP (defalt)) | |
243 | val = defalt; | |
244 | ||
245 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); | |
246 | pos = XINT (Fcdr (expr_and_pos)); | |
247 | if (pos != XSTRING (val)->size) | |
248 | { | |
249 | /* Ignore trailing whitespace; any other trailing junk | |
250 | is an error. */ | |
251 | int i; | |
252 | pos = string_char_to_byte (val, pos); | |
253 | for (i = pos; i < STRING_BYTES (XSTRING (val)); i++) | |
254 | { | |
255 | int c = XSTRING (val)->data[i]; | |
256 | if (c != ' ' && c != '\t' && c != '\n') | |
257 | error ("Trailing garbage following expression"); | |
258 | } | |
259 | } | |
260 | ||
261 | val = Fcar (expr_and_pos); | |
262 | RETURN_UNGCPRO (val); | |
263 | } | |
264 | ||
265 | ||
266 | /* Like read_minibuf but reading from stdin. This function is called | |
267 | from read_minibuf to do the job if noninteractive. */ | |
268 | ||
269 | static Lisp_Object | |
270 | read_minibuf_noninteractive (map, initial, prompt, backup_n, expflag, | |
271 | histvar, histpos, defalt, allow_props, | |
272 | inherit_input_method) | |
273 | Lisp_Object map; | |
274 | Lisp_Object initial; | |
275 | Lisp_Object prompt; | |
276 | Lisp_Object backup_n; | |
277 | int expflag; | |
278 | Lisp_Object histvar; | |
279 | Lisp_Object histpos; | |
280 | Lisp_Object defalt; | |
281 | int allow_props; | |
282 | int inherit_input_method; | |
283 | { | |
284 | int size, len; | |
285 | char *line, *s; | |
edfef199 GM |
286 | Lisp_Object val; |
287 | ||
288 | fprintf (stdout, "%s", XSTRING (prompt)->data); | |
289 | fflush (stdout); | |
290 | ||
6bbd7a29 | 291 | val = Qnil; |
edfef199 GM |
292 | size = 100; |
293 | len = 0; | |
294 | line = (char *) xmalloc (size * sizeof *line); | |
295 | while ((s = fgets (line + len, size - len, stdin)) != NULL | |
296 | && (len = strlen (line), | |
297 | len == size - 1 && line[len - 1] != '\n')) | |
298 | { | |
299 | size *= 2; | |
300 | line = (char *) xrealloc (line, size); | |
301 | } | |
302 | ||
303 | if (s) | |
304 | { | |
305 | len = strlen (line); | |
306 | ||
307 | if (len > 0 && line[len - 1] == '\n') | |
308 | line[--len] = '\0'; | |
309 | ||
310 | val = build_string (line); | |
311 | xfree (line); | |
312 | } | |
313 | else | |
314 | { | |
315 | xfree (line); | |
316 | error ("Error reading from stdin"); | |
317 | } | |
318 | ||
319 | /* If Lisp form desired instead of string, parse it. */ | |
320 | if (expflag) | |
321 | val = string_to_object (val, defalt); | |
322 | ||
323 | return val; | |
324 | } | |
325 | ||
f927c5ae | 326 | |
770970cb | 327 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
a9c26562 | 328 | (a string), putting point minus BACKUP_N bytes from the end of INITIAL, |
770970cb | 329 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 330 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
331 | |
332 | Normally return the result as a string (the text that was read), | |
3ab14176 | 333 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
334 | If HISTVAR is given, save the value read on that history only if it doesn't |
335 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 336 | the list as the string that was read. |
770970cb | 337 | |
c3421833 RS |
338 | DEFALT specifies te default value for the sake of history commands. |
339 | ||
cee54539 KH |
340 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
341 | ||
342 | if INHERIT_INPUT_METHOD is nonzeor, the minibuffer inherit the | |
343 | current input method. */ | |
e5d4686b RS |
344 | |
345 | static Lisp_Object | |
346 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 347 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
348 | Lisp_Object map; |
349 | Lisp_Object initial; | |
350 | Lisp_Object prompt; | |
5061d9c3 | 351 | Lisp_Object backup_n; |
f927c5ae | 352 | int expflag; |
770970cb RS |
353 | Lisp_Object histvar; |
354 | Lisp_Object histpos; | |
e5d4686b | 355 | Lisp_Object defalt; |
af2b7cd5 | 356 | int allow_props; |
cee54539 | 357 | int inherit_input_method; |
f927c5ae | 358 | { |
00a34088 | 359 | Lisp_Object val; |
f927c5ae | 360 | int count = specpdl_ptr - specpdl; |
cee54539 KH |
361 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
362 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 363 | Lisp_Object enable_multibyte; |
13c67cc6 | 364 | extern Lisp_Object Qread_only, Qfront_sticky; |
fbd1209a | 365 | extern Lisp_Object Qrear_nonsticky; |
00a34088 | 366 | |
e5d4686b RS |
367 | specbind (Qminibuffer_default, defalt); |
368 | ||
08f7d623 | 369 | single_kboard_state (); |
e5baa1a7 | 370 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
371 | if (display_hourglass_p) |
372 | cancel_hourglass (); | |
e5baa1a7 | 373 | #endif |
718d3251 | 374 | |
00a34088 | 375 | val = Qnil; |
57ceaa8a | 376 | ambient_dir = current_buffer->directory; |
cee54539 | 377 | input_method = Qnil; |
c75000c7 | 378 | enable_multibyte = Qnil; |
57ceaa8a | 379 | |
00a34088 RS |
380 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
381 | store them away before we can GC. Don't need to protect | |
382 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 383 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 384 | |
7510b296 | 385 | if (!STRINGP (prompt)) |
f927c5ae JB |
386 | prompt = build_string (""); |
387 | ||
f927c5ae | 388 | if (!enable_recursive_minibuffers |
be15a518 RS |
389 | && minibuf_level > 0) |
390 | { | |
391 | if (EQ (selected_window, minibuf_window)) | |
392 | error ("Command attempted to use minibuffer while in minibuffer"); | |
393 | else | |
394 | /* If we're in another window, cancel the minibuffer that's active. */ | |
395 | Fthrow (Qexit, | |
396 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
397 | } | |
f927c5ae | 398 | |
edfef199 | 399 | if (noninteractive) |
c28b847b GM |
400 | { |
401 | val = read_minibuf_noninteractive (map, initial, prompt, backup_n, | |
402 | expflag, histvar, histpos, defalt, | |
403 | allow_props, inherit_input_method); | |
404 | return unbind_to (count, val); | |
405 | } | |
edfef199 | 406 | |
748dc60a | 407 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 408 | |
c5b6b680 RS |
409 | choose_minibuf_frame (); |
410 | ||
0c94f256 RS |
411 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
412 | ||
f927c5ae | 413 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
414 | Fcurrent_window_configuration (Qnil)); |
415 | ||
ff11dfa1 JB |
416 | /* If the minibuffer window is on a different frame, save that |
417 | frame's configuration too. */ | |
75f00e72 | 418 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
a4aafc54 | 419 | if (!EQ (mini_frame, selected_frame)) |
5061d9c3 RS |
420 | record_unwind_protect (Fset_window_configuration, |
421 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
422 | |
423 | /* If the minibuffer is on an iconified or invisible frame, | |
424 | make it visible now. */ | |
425 | Fmake_frame_visible (mini_frame); | |
426 | ||
6a9ee000 RS |
427 | if (minibuffer_auto_raise) |
428 | Fraise_frame (mini_frame); | |
f927c5ae | 429 | |
748dc60a RS |
430 | /* We have to do this after saving the window configuration |
431 | since that is what restores the current buffer. */ | |
432 | ||
433 | /* Arrange to restore a number of minibuffer-related variables. | |
434 | We could bind each variable separately, but that would use lots of | |
435 | specpdl slots. */ | |
436 | minibuf_save_list | |
437 | = Fcons (Voverriding_local_map, | |
438 | Fcons (minibuf_window, minibuf_save_list)); | |
439 | minibuf_save_list | |
440 | = Fcons (minibuf_prompt, | |
441 | Fcons (make_number (minibuf_prompt_width), | |
442 | Fcons (Vhelp_form, | |
443 | Fcons (Vcurrent_prefix_arg, | |
444 | Fcons (Vminibuffer_history_position, | |
445 | Fcons (Vminibuffer_history_variable, | |
446 | minibuf_save_list)))))); | |
447 | ||
448 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
449 | minibuf_level++; | |
450 | ||
451 | /* Now that we can restore all those variables, start changing them. */ | |
452 | ||
1e3f16d5 | 453 | minibuf_prompt_width = 0; |
748dc60a RS |
454 | minibuf_prompt = Fcopy_sequence (prompt); |
455 | Vminibuffer_history_position = histpos; | |
456 | Vminibuffer_history_variable = histvar; | |
457 | Vhelp_form = Vminibuffer_help_form; | |
458 | ||
cee54539 | 459 | if (inherit_input_method) |
c75000c7 RS |
460 | { |
461 | /* `current-input-method' is buffer local. So, remeber it in | |
462 | INPUT_METHOD before changing the current buffer. */ | |
463 | input_method = Fsymbol_value (Qcurrent_input_method); | |
464 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
465 | } | |
cee54539 | 466 | |
748dc60a RS |
467 | /* Switch to the minibuffer. */ |
468 | ||
4f69d8f6 RS |
469 | minibuffer = get_minibuffer (minibuf_level); |
470 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
471 | |
472 | /* The current buffer's default directory is usually the right thing | |
473 | for our minibuffer here. However, if you're typing a command at | |
474 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
475 | the current_buffer, so reset_buffer leaves buf's default | |
476 | directory unchanged. This is a bummer when you've just started | |
477 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
478 | you think of something better to do? Find another buffer with a | |
479 | better directory, and use that one instead. */ | |
748dc60a RS |
480 | if (STRINGP (ambient_dir)) |
481 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
482 | else |
483 | { | |
484 | Lisp_Object buf_list; | |
485 | ||
486 | for (buf_list = Vbuffer_alist; | |
487 | CONSP (buf_list); | |
7539e11f | 488 | buf_list = XCDR (buf_list)) |
64a3a3c0 | 489 | { |
1e62748e | 490 | Lisp_Object other_buf; |
64a3a3c0 | 491 | |
7539e11f | 492 | other_buf = XCDR (XCAR (buf_list)); |
7510b296 | 493 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
494 | { |
495 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
496 | break; | |
497 | } | |
498 | } | |
499 | } | |
500 | ||
a4aafc54 GM |
501 | if (!EQ (mini_frame, selected_frame)) |
502 | Fredirect_frame_focus (selected_frame, mini_frame); | |
43bad991 | 503 | |
f927c5ae JB |
504 | Vminibuf_scroll_window = selected_window; |
505 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); | |
f927c5ae | 506 | Fselect_window (minibuf_window); |
5a866662 | 507 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 508 | |
748dc60a RS |
509 | Fmake_local_variable (Qprint_escape_newlines); |
510 | print_escape_newlines = 1; | |
511 | ||
512 | /* Erase the buffer. */ | |
59115a22 | 513 | { |
a41edd99 | 514 | int count1 = BINDING_STACK_SIZE (); |
59115a22 | 515 | specbind (Qinhibit_read_only, Qt); |
a41edd99 | 516 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
517 | Ferase_buffer (); |
518 | unbind_to (count1, Qnil); | |
519 | } | |
520 | ||
279cf52c GM |
521 | if (!NILP (current_buffer->enable_multibyte_characters) |
522 | && ! STRING_MULTIBYTE (minibuf_prompt)) | |
523 | minibuf_prompt = Fstring_make_multibyte (minibuf_prompt); | |
524 | ||
279cf52c GM |
525 | /* Insert the prompt, record where it ends. */ |
526 | Finsert (1, &minibuf_prompt); | |
279cf52c GM |
527 | if (PT > BEG) |
528 | { | |
fbd1209a | 529 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 530 | Qfront_sticky, Qt, Qnil); |
fbd1209a | 531 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 532 | Qrear_nonsticky, Qt, Qnil); |
8e9968c6 GM |
533 | Fput_text_property (make_number (BEG), make_number (PT), |
534 | Qfield, Qt, Qnil); | |
cc64f5c9 MB |
535 | Fadd_text_properties (make_number (BEG), make_number (PT), |
536 | Vminibuffer_prompt_properties, Qnil); | |
279cf52c | 537 | } |
1e3f16d5 GM |
538 | |
539 | minibuf_prompt_width = current_column (); | |
279cf52c | 540 | |
094d9789 RS |
541 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
542 | if (inherit_input_method) | |
543 | current_buffer->enable_multibyte_characters = enable_multibyte; | |
544 | ||
748dc60a | 545 | /* Put in the initial input. */ |
56a98455 | 546 | if (!NILP (initial)) |
f927c5ae JB |
547 | { |
548 | Finsert (1, &initial); | |
a9c26562 RS |
549 | if (INTEGERP (backup_n)) |
550 | Fforward_char (backup_n); | |
f927c5ae JB |
551 | } |
552 | ||
39e98b38 | 553 | clear_message (1, 1); |
f927c5ae JB |
554 | current_buffer->keymap = map; |
555 | ||
cee54539 | 556 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 557 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
558 | call1 (Qactivate_input_method, input_method); |
559 | ||
5c781212 RS |
560 | /* Run our hook, but not if it is empty. |
561 | (run-hooks would do nothing if it is empty, | |
748dc60a | 562 | but it's important to save time here in the usual case). */ |
92d3b06e RS |
563 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
564 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
565 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
566 | ||
4e6b7204 MB |
567 | /* Don't allow the user to undo past this point. */ |
568 | current_buffer->undo_list = Qnil; | |
569 | ||
f927c5ae JB |
570 | recursive_edit_1 (); |
571 | ||
572 | /* If cursor is on the minibuffer line, | |
573 | show the user we have exited by putting it in column 0. */ | |
279cf52c | 574 | if (XWINDOW (minibuf_window)->cursor.vpos >= 0 |
f927c5ae JB |
575 | && !noninteractive) |
576 | { | |
279cf52c GM |
577 | XWINDOW (minibuf_window)->cursor.hpos = 0; |
578 | XWINDOW (minibuf_window)->cursor.x = 0; | |
579 | XWINDOW (minibuf_window)->must_be_updated_p = 1; | |
a4aafc54 | 580 | update_frame (XFRAME (selected_frame), 1, 1); |
337aaf1f GM |
581 | if (rif && rif->flush_display) |
582 | rif->flush_display (XFRAME (XWINDOW (minibuf_window)->frame)); | |
f927c5ae JB |
583 | } |
584 | ||
c3421833 | 585 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 586 | Fset_buffer (minibuffer); |
be95a9b6 DL |
587 | if (allow_props) |
588 | val = Ffield_string (make_number (ZV)); | |
589 | else | |
590 | val = Ffield_string_no_properties (make_number (ZV)); | |
770970cb | 591 | |
b278606c | 592 | /* VAL is the string of minibuffer text. */ |
7019cca7 | 593 | |
b278606c BF |
594 | last_minibuf_string = val; |
595 | ||
3ab14176 | 596 | /* Add the value to the appropriate history list unless it is empty. */ |
9f6131cf | 597 | if (XSTRING (val)->size != 0 |
c6d65724 | 598 | && SYMBOLP (Vminibuffer_history_variable)) |
3ab14176 KH |
599 | { |
600 | /* If the caller wanted to save the value read on a history list, | |
601 | then do so if the value is not already the front of the list. */ | |
602 | Lisp_Object histval; | |
c6d65724 RS |
603 | |
604 | /* If variable is unbound, make it nil. */ | |
f5c1dd0d | 605 | if (EQ (SYMBOL_VALUE (Vminibuffer_history_variable), Qunbound)) |
c6d65724 RS |
606 | Fset (Vminibuffer_history_variable, Qnil); |
607 | ||
3ab14176 KH |
608 | histval = Fsymbol_value (Vminibuffer_history_variable); |
609 | ||
610 | /* The value of the history variable must be a cons or nil. Other | |
611 | values are unacceptable. We silently ignore these values. */ | |
612 | if (NILP (histval) | |
9f6131cf RS |
613 | || (CONSP (histval) |
614 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
615 | { |
616 | Lisp_Object length; | |
617 | ||
618 | histval = Fcons (last_minibuf_string, histval); | |
619 | Fset (Vminibuffer_history_variable, histval); | |
620 | ||
621 | /* Truncate if requested. */ | |
622 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
623 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
624 | if (INTEGERP (length)) |
625 | { | |
626 | if (XINT (length) <= 0) | |
627 | Fset (Vminibuffer_history_variable, Qnil); | |
628 | else | |
629 | { | |
630 | Lisp_Object temp; | |
631 | ||
632 | temp = Fnthcdr (Fsub1 (length), histval); | |
633 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
634 | } | |
635 | } | |
77aa8edf | 636 | } |
9f6131cf RS |
637 | } |
638 | ||
639 | /* If Lisp form desired instead of string, parse it. */ | |
640 | if (expflag) | |
edfef199 | 641 | val = string_to_object (val, defalt); |
3ab14176 | 642 | |
00a34088 RS |
643 | /* The appropriate frame will get selected |
644 | in set-window-configuration. */ | |
645 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
646 | } |
647 | ||
648 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
649 | depth = 0 is the lowest allowed argument, and that is the value | |
650 | used for nonrecursive minibuffer invocations */ | |
651 | ||
652 | Lisp_Object | |
653 | get_minibuffer (depth) | |
654 | int depth; | |
655 | { | |
656 | Lisp_Object tail, num, buf; | |
9f6c23bc | 657 | char name[24]; |
f927c5ae JB |
658 | extern Lisp_Object nconc2 (); |
659 | ||
5a866662 | 660 | XSETFASTINT (num, depth); |
f927c5ae | 661 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 662 | if (NILP (tail)) |
f927c5ae JB |
663 | { |
664 | tail = Fcons (Qnil, Qnil); | |
665 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
666 | } | |
667 | buf = Fcar (tail); | |
56a98455 | 668 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
669 | { |
670 | sprintf (name, " *Minibuf-%d*", depth); | |
671 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
672 | |
673 | /* Although the buffer's name starts with a space, undo should be | |
674 | enabled in it. */ | |
675 | Fbuffer_enable_undo (buf); | |
676 | ||
7539e11f | 677 | XCAR (tail) = buf; |
f927c5ae JB |
678 | } |
679 | else | |
5956f71d | 680 | { |
6b3faad8 RS |
681 | int count = specpdl_ptr - specpdl; |
682 | ||
5956f71d | 683 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
684 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
685 | Fset_buffer (buf); | |
686 | Fkill_all_local_variables (); | |
687 | unbind_to (count, Qnil); | |
5956f71d | 688 | } |
64a3a3c0 | 689 | |
f927c5ae JB |
690 | return buf; |
691 | } | |
692 | ||
279cf52c GM |
693 | /* This function is called on exiting minibuffer, whether normally or |
694 | not, and it restores the current window, buffer, etc. */ | |
f927c5ae | 695 | |
9d815fd9 | 696 | static Lisp_Object |
43bad991 JB |
697 | read_minibuf_unwind (data) |
698 | Lisp_Object data; | |
f927c5ae | 699 | { |
c24e1160 | 700 | Lisp_Object old_deactivate_mark; |
59115a22 | 701 | Lisp_Object window; |
c24e1160 | 702 | |
0a1dd1c5 RS |
703 | /* We are exiting the minibuffer one way or the other, |
704 | so run the hook. */ | |
705 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
706 | && !NILP (Vrun_hooks)) | |
060ffec1 | 707 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 708 | |
f927c5ae | 709 | /* If this was a recursive minibuffer, |
59115a22 | 710 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 711 | minibuf_level--; |
f927c5ae | 712 | |
59115a22 | 713 | window = minibuf_window; |
279cf52c GM |
714 | /* To keep things predictable, in case it matters, let's be in the |
715 | minibuffer when we reset the relevant variables. */ | |
59115a22 RS |
716 | Fset_buffer (XWINDOW (window)->buffer); |
717 | ||
718 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
719 | minibuf_prompt = Fcar (minibuf_save_list); |
720 | minibuf_save_list = Fcdr (minibuf_save_list); | |
721 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
722 | minibuf_save_list = Fcdr (minibuf_save_list); | |
723 | Vhelp_form = Fcar (minibuf_save_list); | |
724 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 725 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
726 | minibuf_save_list = Fcdr (minibuf_save_list); |
727 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
728 | minibuf_save_list = Fcdr (minibuf_save_list); | |
729 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
730 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 731 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 732 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
733 | #if 0 |
734 | temp = Fcar (minibuf_save_list); | |
735 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
736 | minibuf_window = temp; | |
737 | #endif | |
30e13e56 | 738 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
739 | |
740 | /* Erase the minibuffer we were using at this level. */ | |
741 | { | |
742 | int count = specpdl_ptr - specpdl; | |
743 | /* Prevent error in erase-buffer. */ | |
744 | specbind (Qinhibit_read_only, Qt); | |
bd819d14 | 745 | specbind (Qinhibit_modification_hooks, Qt); |
59115a22 RS |
746 | old_deactivate_mark = Vdeactivate_mark; |
747 | Ferase_buffer (); | |
748 | Vdeactivate_mark = old_deactivate_mark; | |
749 | unbind_to (count, Qnil); | |
750 | } | |
751 | ||
544e358d GM |
752 | /* When we get to the outmost level, make sure we resize the |
753 | mini-window back to its normal size. */ | |
754 | if (minibuf_level == 0) | |
1e3f16d5 | 755 | resize_mini_window (XWINDOW (window), 0); |
544e358d | 756 | |
59115a22 RS |
757 | /* Make sure minibuffer window is erased, not ignored. */ |
758 | windows_or_buffers_changed++; | |
759 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 760 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 | 761 | return Qnil; |
f927c5ae JB |
762 | } |
763 | \f | |
b9d721de JB |
764 | |
765 | /* This comment supplies the doc string for read-from-minibuffer, | |
766 | for make-docfile to see. We cannot put this in the real DEFUN | |
767 | due to limits in the Unix cpp. | |
768 | ||
cee54539 | 769 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
f927c5ae JB |
770 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
771 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string\n\ | |
772 | to be inserted into the minibuffer before reading input.\n\ | |
770970cb | 773 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input\n\ |
18fef111 | 774 | is STRING, but point is placed at position POSITION in the minibuffer.\n\ |
f927c5ae JB |
775 | Third arg KEYMAP is a keymap to use whilst reading;\n\ |
776 | if omitted or nil, the default is `minibuffer-local-map'.\n\ | |
777 | If fourth arg READ is non-nil, then interpret the result as a lisp object\n\ | |
778 | and return that object:\n\ | |
779 | in other words, do `(car (read-from-string INPUT-STRING))'\n\ | |
770970cb RS |
780 | Fifth arg HIST, if non-nil, specifies a history list\n\ |
781 | and optionally the initial position in the list.\n\ | |
782 | It can be a symbol, which is the history list variable to use,\n\ | |
783 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
784 | In that case, HISTVAR is the history list variable to use,\n\ | |
785 | and HISTPOS is the initial position (the position in the list\n\ | |
786 | which INITIAL-CONTENTS corresponds to).\n\ | |
e5d4686b | 787 | Positions are counted starting from 1 at the beginning of the list.\n\ |
b9a86585 RS |
788 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is available\n\ |
789 | for history commands; but `read-from-minibuffer' does NOT return DEFAULT-VALUE\n\ | |
790 | if the user enters empty input! It returns the empty string.\n\ | |
c8c15521 RS |
791 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
792 | the current input method and the setting of enable-multibyte-characters.\n\ | |
19a4cb25 | 793 | If the variable `minibuffer-allow-text-properties' is non-nil,\n\ |
c3421833 | 794 | then the string which is returned includes whatever text properties\n\ |
cee54539 KH |
795 | were present in the minibuffer. Otherwise the value has no text properties.") |
796 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
797 | */ | |
b9d721de | 798 | |
cee54539 | 799 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
b9d721de | 800 | 0 /* See immediately above */) |
cee54539 | 801 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) |
e5d4686b | 802 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 803 | Lisp_Object inherit_input_method; |
f927c5ae JB |
804 | { |
805 | int pos = 0; | |
e5d4686b | 806 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
807 | struct gcpro gcpro1; |
808 | ||
770970cb | 809 | position = Qnil; |
f927c5ae JB |
810 | |
811 | CHECK_STRING (prompt, 0); | |
68e5a8a2 | 812 | if (!NILP (initial_contents)) |
f927c5ae | 813 | { |
7510b296 | 814 | if (CONSP (initial_contents)) |
770970cb | 815 | { |
68e5a8a2 RS |
816 | position = Fcdr (initial_contents); |
817 | initial_contents = Fcar (initial_contents); | |
770970cb | 818 | } |
68e5a8a2 | 819 | CHECK_STRING (initial_contents, 1); |
56a98455 | 820 | if (!NILP (position)) |
f927c5ae JB |
821 | { |
822 | CHECK_NUMBER (position, 0); | |
823 | /* Convert to distance from end of input. */ | |
18fef111 RS |
824 | if (XINT (position) < 1) |
825 | /* A number too small means the beginning of the string. */ | |
826 | pos = - XSTRING (initial_contents)->size; | |
827 | else | |
828 | pos = XINT (position) - 1 - XSTRING (initial_contents)->size; | |
f927c5ae JB |
829 | } |
830 | } | |
831 | ||
56a98455 | 832 | if (NILP (keymap)) |
f927c5ae JB |
833 | keymap = Vminibuffer_local_map; |
834 | else | |
02067692 | 835 | keymap = get_keymap (keymap, 1, 0); |
770970cb | 836 | |
7510b296 | 837 | if (SYMBOLP (hist)) |
770970cb RS |
838 | { |
839 | histvar = hist; | |
840 | histpos = Qnil; | |
841 | } | |
842 | else | |
843 | { | |
844 | histvar = Fcar_safe (hist); | |
845 | histpos = Fcdr_safe (hist); | |
846 | } | |
847 | if (NILP (histvar)) | |
848 | histvar = Qminibuffer_history; | |
849 | if (NILP (histpos)) | |
5a866662 | 850 | XSETFASTINT (histpos, 0); |
770970cb | 851 | |
1d8d92f4 | 852 | GCPRO1 (default_value); |
e5d4686b RS |
853 | val = read_minibuf (keymap, initial_contents, prompt, |
854 | make_number (pos), !NILP (read), | |
c3421833 | 855 | histvar, histpos, default_value, |
cee54539 KH |
856 | minibuffer_allow_text_properties, |
857 | !NILP (inherit_input_method)); | |
1d8d92f4 | 858 | UNGCPRO; |
e5d4686b | 859 | return val; |
f927c5ae JB |
860 | } |
861 | ||
862 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
863 | "Return a Lisp object read using the minibuffer.\n\ | |
864 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
865 | is a string to insert in the minibuffer before reading.") | |
866 | (prompt, initial_contents) | |
867 | Lisp_Object prompt, initial_contents; | |
868 | { | |
869 | CHECK_STRING (prompt, 0); | |
56a98455 | 870 | if (!NILP (initial_contents)) |
a1b4b084 | 871 | CHECK_STRING (initial_contents, 1); |
770970cb | 872 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 873 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 874 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
875 | } |
876 | ||
877 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
878 | "Return value of Lisp expression read using the minibuffer.\n\ | |
879 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
880 | is a string to insert in the minibuffer before reading.") | |
881 | (prompt, initial_contents) | |
882 | Lisp_Object prompt, initial_contents; | |
883 | { | |
884 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
885 | } | |
886 | ||
887 | /* Functions that use the minibuffer to read various things. */ | |
888 | ||
cee54539 | 889 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
f927c5ae | 890 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
80896ab4 RS |
891 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading.\n\ |
892 | The third arg HISTORY, if non-nil, specifies a history list\n\ | |
893 | and optionally the initial position in the list.\n\ | |
cee54539 | 894 | See `read-from-minibuffer' for details of HISTORY argument.\n\ |
19a4cb25 SE |
895 | Fourth arg DEFAULT-VALUE is the default value. If non-nil, it is used\n\ |
896 | for history commands, and as the value to return if the user enters\n\ | |
897 | the empty string.\n\ | |
898 | Fifth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ | |
c8c15521 | 899 | the current input method and the setting of enable-multibyte-characters.") |
cee54539 | 900 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 901 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 902 | Lisp_Object inherit_input_method; |
f927c5ae | 903 | { |
b9a86585 RS |
904 | Lisp_Object val; |
905 | val = Fread_from_minibuffer (prompt, initial_input, Qnil, | |
906 | Qnil, history, default_value, | |
907 | inherit_input_method); | |
908 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (default_value)) | |
909 | val = default_value; | |
910 | return val; | |
f927c5ae JB |
911 | } |
912 | ||
cee54539 | 913 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
c923ccc9 RS |
914 | "Read a string from the terminal, not allowing blanks.\n\ |
915 | Prompt with PROMPT, and provide INITIAL as an initial value of the input string.\n\ | |
c8c15521 RS |
916 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
917 | the current input method and the setting of enable-multibyte-characters.") | |
c923ccc9 RS |
918 | (prompt, initial, inherit_input_method) |
919 | Lisp_Object prompt, initial, inherit_input_method; | |
f927c5ae JB |
920 | { |
921 | CHECK_STRING (prompt, 0); | |
c923ccc9 RS |
922 | if (! NILP (initial)) |
923 | CHECK_STRING (initial, 1); | |
f927c5ae | 924 | |
c923ccc9 | 925 | return read_minibuf (Vminibuffer_local_ns_map, initial, prompt, Qnil, |
cee54539 KH |
926 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
927 | !NILP (inherit_input_method)); | |
f927c5ae JB |
928 | } |
929 | ||
e5d4686b RS |
930 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
931 | "Read the name of a command and return as a symbol.\n\ | |
932 | Prompts with PROMPT. By default, return DEFAULT-VALUE.") | |
933 | (prompt, default_value) | |
934 | Lisp_Object prompt, default_value; | |
f927c5ae | 935 | { |
7c8d9931 RS |
936 | Lisp_Object name, default_string; |
937 | ||
938 | if (NILP (default_value)) | |
939 | default_string = Qnil; | |
940 | else if (SYMBOLP (default_value)) | |
6dd05c14 | 941 | XSETSTRING (default_string, XSYMBOL (default_value)->name); |
7c8d9931 RS |
942 | else |
943 | default_string = default_value; | |
944 | ||
945 | name = Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, | |
946 | Qnil, Qnil, default_string, Qnil); | |
947 | if (NILP (name)) | |
948 | return name; | |
949 | return Fintern (name, Qnil); | |
f927c5ae JB |
950 | } |
951 | ||
952 | #ifdef NOTDEF | |
953 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
954 | "One arg PROMPT, a string. Read the name of a function and return as a symbol.\n\ | |
955 | Prompts with PROMPT.") | |
956 | (prompt) | |
957 | Lisp_Object prompt; | |
958 | { | |
cee54539 | 959 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
960 | Qnil); |
961 | } | |
962 | #endif /* NOTDEF */ | |
963 | ||
e5d4686b RS |
964 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
965 | "Read the name of a user variable and return it as a symbol.\n\ | |
966 | Prompts with PROMPT. By default, return DEFAULT-VALUE.\n\ | |
f927c5ae | 967 | A user variable is one whose documentation starts with a `*' character.") |
e5d4686b RS |
968 | (prompt, default_value) |
969 | Lisp_Object prompt, default_value; | |
f927c5ae | 970 | { |
7c8d9931 RS |
971 | Lisp_Object name, default_string; |
972 | ||
973 | if (NILP (default_value)) | |
974 | default_string = Qnil; | |
975 | else if (SYMBOLP (default_value)) | |
6dd05c14 | 976 | XSETSTRING (default_string, XSYMBOL (default_value)->name); |
7c8d9931 RS |
977 | else |
978 | default_string = default_value; | |
979 | ||
980 | name = Fcompleting_read (prompt, Vobarray, | |
981 | Quser_variable_p, Qt, | |
982 | Qnil, Qnil, default_string, Qnil); | |
983 | if (NILP (name)) | |
984 | return name; | |
985 | return Fintern (name, Qnil); | |
f927c5ae JB |
986 | } |
987 | ||
988 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
989 | "One arg PROMPT, a string. Read the name of a buffer and return as a string.\n\ | |
990 | Prompts with PROMPT.\n\ | |
e5d4686b | 991 | Optional second arg DEF is value to return if user enters an empty line.\n\ |
f927c5ae JB |
992 | If optional third arg REQUIRE-MATCH is non-nil, only existing buffer names are allowed.") |
993 | (prompt, def, require_match) | |
994 | Lisp_Object prompt, def, require_match; | |
995 | { | |
eebbfb01 KH |
996 | Lisp_Object args[4]; |
997 | ||
7510b296 | 998 | if (BUFFERP (def)) |
f927c5ae | 999 | def = XBUFFER (def)->name; |
eebbfb01 KH |
1000 | |
1001 | if (NILP (Vread_buffer_function)) | |
1002 | { | |
1003 | if (!NILP (def)) | |
1004 | { | |
1005 | args[0] = build_string ("%s(default %s) "); | |
1006 | args[1] = prompt; | |
1007 | args[2] = def; | |
1008 | prompt = Fformat (3, args); | |
1009 | } | |
1010 | ||
1011 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
406e55df RS |
1012 | require_match, Qnil, Qbuffer_name_history, |
1013 | def, Qnil); | |
eebbfb01 KH |
1014 | } |
1015 | else | |
f927c5ae | 1016 | { |
eebbfb01 | 1017 | args[0] = Vread_buffer_function; |
f927c5ae JB |
1018 | args[1] = prompt; |
1019 | args[2] = def; | |
eebbfb01 KH |
1020 | args[3] = require_match; |
1021 | return Ffuncall(4, args); | |
f927c5ae | 1022 | } |
f927c5ae JB |
1023 | } |
1024 | \f | |
ec067ec7 RS |
1025 | static Lisp_Object |
1026 | minibuf_conform_representation (string, basis) | |
1027 | Lisp_Object string, basis; | |
1028 | { | |
1029 | if (STRING_MULTIBYTE (string) == STRING_MULTIBYTE (basis)) | |
1030 | return string; | |
1031 | ||
1032 | if (STRING_MULTIBYTE (string)) | |
1033 | return Fstring_make_unibyte (string); | |
1034 | else | |
1035 | return Fstring_make_multibyte (string); | |
1036 | } | |
1037 | ||
f927c5ae JB |
1038 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, |
1039 | "Return common substring of all completions of STRING in ALIST.\n\ | |
1040 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
1041 | All that match are compared together; the longest initial sequence\n\ | |
1042 | common to all matches is returned as a string.\n\ | |
1043 | If there is no match at all, nil is returned.\n\ | |
7e4639db | 1044 | For a unique match which is exact, t is returned.\n\ |
f927c5ae JB |
1045 | \n\ |
1046 | ALIST can be an obarray instead of an alist.\n\ | |
1047 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
1048 | \n\ | |
1049 | ALIST can also be a function to do the completion itself.\n\ | |
1050 | It receives three arguments: the values STRING, PREDICATE and nil.\n\ | |
1051 | Whatever it returns becomes the value of `try-completion'.\n\ | |
1052 | \n\ | |
1053 | If optional third argument PREDICATE is non-nil,\n\ | |
1054 | it is used to test each possible match.\n\ | |
1055 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc | 1056 | The argument given to PREDICATE is the alist element\n\ |
b9b84fd3 SM |
1057 | or the symbol from the obarray.\n\ |
1058 | Additionally to this predicate, `completion-regexp-list'\n\ | |
1059 | is used to further constrain the set of candidates.") | |
7efd36fc EN |
1060 | (string, alist, predicate) |
1061 | Lisp_Object string, alist, predicate; | |
f927c5ae JB |
1062 | { |
1063 | Lisp_Object bestmatch, tail, elt, eltstring; | |
af2b7cd5 | 1064 | /* Size in bytes of BESTMATCH. */ |
6bbd7a29 | 1065 | int bestmatchsize = 0; |
af2b7cd5 | 1066 | /* These are in bytes, too. */ |
f927c5ae | 1067 | int compare, matchsize; |
56a98455 | 1068 | int list = CONSP (alist) || NILP (alist); |
6bbd7a29 | 1069 | int index = 0, obsize = 0; |
f927c5ae JB |
1070 | int matchcount = 0; |
1071 | Lisp_Object bucket, zero, end, tem; | |
1072 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1073 | ||
1074 | CHECK_STRING (string, 0); | |
7510b296 | 1075 | if (!list && !VECTORP (alist)) |
7efd36fc | 1076 | return call3 (alist, string, predicate, Qnil); |
f927c5ae | 1077 | |
6bbd7a29 | 1078 | bestmatch = bucket = Qnil; |
f927c5ae JB |
1079 | |
1080 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1081 | tail = alist; | |
1082 | if (! list) | |
1083 | { | |
1084 | index = 0; | |
1085 | obsize = XVECTOR (alist)->size; | |
1086 | bucket = XVECTOR (alist)->contents[index]; | |
1087 | } | |
1088 | ||
1089 | while (1) | |
1090 | { | |
1091 | /* Get the next element of the alist or obarray. */ | |
1092 | /* Exit the loop if the elements are all used up. */ | |
1093 | /* elt gets the alist element or symbol. | |
1094 | eltstring gets the name to check as a completion. */ | |
1095 | ||
1096 | if (list) | |
1097 | { | |
56a98455 | 1098 | if (NILP (tail)) |
f927c5ae JB |
1099 | break; |
1100 | elt = Fcar (tail); | |
1101 | eltstring = Fcar (elt); | |
1102 | tail = Fcdr (tail); | |
1103 | } | |
1104 | else | |
1105 | { | |
1106 | if (XFASTINT (bucket) != 0) | |
1107 | { | |
1108 | elt = bucket; | |
1109 | eltstring = Fsymbol_name (elt); | |
1110 | if (XSYMBOL (bucket)->next) | |
1111 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1112 | else | |
5a866662 | 1113 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1114 | } |
1115 | else if (++index >= obsize) | |
1116 | break; | |
1117 | else | |
1118 | { | |
1119 | bucket = XVECTOR (alist)->contents[index]; | |
1120 | continue; | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | /* Is this element a possible completion? */ | |
1125 | ||
7510b296 | 1126 | if (STRINGP (eltstring) |
7d315986 | 1127 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
69f4ef20 RS |
1128 | && (tem = Fcompare_strings (eltstring, make_number (0), |
1129 | make_number (XSTRING (string)->size), | |
1130 | string, make_number (0), Qnil, | |
1131 | completion_ignore_case ?Qt : Qnil), | |
1132 | EQ (Qt, tem))) | |
f927c5ae JB |
1133 | { |
1134 | /* Yes. */ | |
42006772 RS |
1135 | Lisp_Object regexps; |
1136 | Lisp_Object zero; | |
5a866662 | 1137 | XSETFASTINT (zero, 0); |
42006772 RS |
1138 | |
1139 | /* Ignore this element if it fails to match all the regexps. */ | |
1140 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1141 | regexps = XCDR (regexps)) |
42006772 | 1142 | { |
7539e11f | 1143 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1144 | if (NILP (tem)) |
1145 | break; | |
1146 | } | |
1147 | if (CONSP (regexps)) | |
1148 | continue; | |
1149 | ||
f927c5ae JB |
1150 | /* Ignore this element if there is a predicate |
1151 | and the predicate doesn't like it. */ | |
1152 | ||
7efd36fc | 1153 | if (!NILP (predicate)) |
f927c5ae | 1154 | { |
7efd36fc | 1155 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1156 | tem = Fcommandp (elt); |
1157 | else | |
1158 | { | |
1159 | GCPRO4 (tail, string, eltstring, bestmatch); | |
7efd36fc | 1160 | tem = call1 (predicate, elt); |
f927c5ae JB |
1161 | UNGCPRO; |
1162 | } | |
56a98455 | 1163 | if (NILP (tem)) continue; |
f927c5ae JB |
1164 | } |
1165 | ||
1166 | /* Update computation of how much all possible completions match */ | |
1167 | ||
1168 | matchcount++; | |
56a98455 | 1169 | if (NILP (bestmatch)) |
af2b7cd5 RS |
1170 | { |
1171 | bestmatch = eltstring; | |
69f4ef20 | 1172 | bestmatchsize = XSTRING (eltstring)->size; |
af2b7cd5 | 1173 | } |
f927c5ae JB |
1174 | else |
1175 | { | |
69f4ef20 RS |
1176 | compare = min (bestmatchsize, XSTRING (eltstring)->size); |
1177 | tem = Fcompare_strings (bestmatch, make_number (0), | |
1178 | make_number (compare), | |
1179 | eltstring, make_number (0), | |
1180 | make_number (compare), | |
1181 | completion_ignore_case ? Qt : Qnil); | |
1182 | if (EQ (tem, Qt)) | |
1183 | matchsize = compare; | |
1184 | else if (XINT (tem) < 0) | |
1185 | matchsize = - XINT (tem) - 1; | |
1186 | else | |
1187 | matchsize = XINT (tem) - 1; | |
1188 | ||
52b14ac0 JB |
1189 | if (matchsize < 0) |
1190 | matchsize = compare; | |
1191 | if (completion_ignore_case) | |
1192 | { | |
1193 | /* If this is an exact match except for case, | |
1194 | use it as the best match rather than one that is not an | |
1195 | exact match. This way, we get the case pattern | |
1196 | of the actual match. */ | |
69f4ef20 RS |
1197 | if ((matchsize == XSTRING (eltstring)->size |
1198 | && matchsize < XSTRING (bestmatch)->size) | |
52b14ac0 JB |
1199 | || |
1200 | /* If there is more than one exact match ignoring case, | |
1201 | and one of them is exact including case, | |
1202 | prefer that one. */ | |
1203 | /* If there is no exact match ignoring case, | |
1204 | prefer a match that does not change the case | |
1205 | of the input. */ | |
69f4ef20 | 1206 | ((matchsize == XSTRING (eltstring)->size) |
52b14ac0 | 1207 | == |
69f4ef20 RS |
1208 | (matchsize == XSTRING (bestmatch)->size) |
1209 | && (tem = Fcompare_strings (eltstring, make_number (0), | |
1210 | make_number (XSTRING (string)->size), | |
1211 | string, make_number (0), | |
1212 | Qnil, | |
1213 | Qnil), | |
1214 | EQ (Qt, tem)) | |
1215 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
1216 | make_number (XSTRING (string)->size), | |
1217 | string, make_number (0), | |
1218 | Qnil, | |
1219 | Qnil), | |
1220 | ! EQ (Qt, tem)))) | |
52b14ac0 JB |
1221 | bestmatch = eltstring; |
1222 | } | |
1223 | bestmatchsize = matchsize; | |
f927c5ae JB |
1224 | } |
1225 | } | |
1226 | } | |
1227 | ||
56a98455 | 1228 | if (NILP (bestmatch)) |
f927c5ae | 1229 | return Qnil; /* No completions found */ |
52b14ac0 JB |
1230 | /* If we are ignoring case, and there is no exact match, |
1231 | and no additional text was supplied, | |
1232 | don't change the case of what the user typed. */ | |
69f4ef20 RS |
1233 | if (completion_ignore_case && bestmatchsize == XSTRING (string)->size |
1234 | && XSTRING (bestmatch)->size > bestmatchsize) | |
ec067ec7 | 1235 | return minibuf_conform_representation (string, bestmatch); |
52b14ac0 JB |
1236 | |
1237 | /* Return t if the supplied string is an exact match (counting case); | |
1238 | it does not require any change to be made. */ | |
69f4ef20 RS |
1239 | if (matchcount == 1 && bestmatchsize == XSTRING (string)->size |
1240 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
1241 | make_number (bestmatchsize), | |
1242 | string, make_number (0), | |
1243 | make_number (bestmatchsize), | |
1244 | Qnil), | |
1245 | EQ (Qt, tem))) | |
f927c5ae JB |
1246 | return Qt; |
1247 | ||
5a866662 KH |
1248 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1249 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1250 | return Fsubstring (bestmatch, zero, end); |
1251 | } | |
1252 | ||
1253 | /* Compare exactly LEN chars of strings at S1 and S2, | |
1254 | ignoring case if appropriate. | |
1255 | Return -1 if strings match, | |
1256 | else number of chars that match at the beginning. */ | |
1257 | ||
829f7f7c | 1258 | int |
f927c5ae | 1259 | scmp (s1, s2, len) |
829f7f7c | 1260 | register unsigned char *s1, *s2; |
f927c5ae JB |
1261 | int len; |
1262 | { | |
1263 | register int l = len; | |
1264 | ||
1265 | if (completion_ignore_case) | |
1266 | { | |
2e34157c | 1267 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) |
f927c5ae JB |
1268 | l--; |
1269 | } | |
1270 | else | |
1271 | { | |
1272 | while (l && *s1++ == *s2++) | |
1273 | l--; | |
1274 | } | |
1275 | if (l == 0) | |
1276 | return -1; | |
829f7f7c | 1277 | else |
d50a3d2a KH |
1278 | { |
1279 | int match = len - l; | |
1280 | ||
1281 | /* Now *--S1 is the unmatching byte. If it is in the middle of | |
1282 | multi-byte form, we must say that the multi-byte character | |
1283 | there doesn't match. */ | |
1284 | while (match && *--s1 >= 0xA0) match--; | |
1285 | return match; | |
1286 | } | |
f927c5ae JB |
1287 | } |
1288 | \f | |
89a255dc | 1289 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
f927c5ae JB |
1290 | "Search for partial matches to STRING in ALIST.\n\ |
1291 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
1292 | The value is a list of all the strings from ALIST that match.\n\ | |
89a255dc | 1293 | \n\ |
f927c5ae JB |
1294 | ALIST can be an obarray instead of an alist.\n\ |
1295 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
1296 | \n\ | |
1297 | ALIST can also be a function to do the completion itself.\n\ | |
1298 | It receives three arguments: the values STRING, PREDICATE and t.\n\ | |
d3887e33 | 1299 | Whatever it returns becomes the value of `all-completions'.\n\ |
f927c5ae JB |
1300 | \n\ |
1301 | If optional third argument PREDICATE is non-nil,\n\ | |
1302 | it is used to test each possible match.\n\ | |
1303 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
1304 | The argument given to PREDICATE is the alist element\n\ |
1305 | or the symbol from the obarray.\n\ | |
b9b84fd3 SM |
1306 | Additionally to this predicate, `completion-regexp-list'\n\ |
1307 | is used to further constrain the set of candidates.\n\ | |
89a255dc RS |
1308 | \n\ |
1309 | If the optional fourth argument HIDE-SPACES is non-nil,\n\ | |
1310 | strings in ALIST that start with a space\n\ | |
1311 | are ignored unless STRING itself starts with a space.") | |
7efd36fc EN |
1312 | (string, alist, predicate, hide_spaces) |
1313 | Lisp_Object string, alist, predicate, hide_spaces; | |
f927c5ae JB |
1314 | { |
1315 | Lisp_Object tail, elt, eltstring; | |
1316 | Lisp_Object allmatches; | |
56a98455 | 1317 | int list = CONSP (alist) || NILP (alist); |
6bbd7a29 | 1318 | int index = 0, obsize = 0; |
f927c5ae JB |
1319 | Lisp_Object bucket, tem; |
1320 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1321 | ||
1322 | CHECK_STRING (string, 0); | |
7510b296 | 1323 | if (!list && !VECTORP (alist)) |
f927c5ae | 1324 | { |
7efd36fc | 1325 | return call3 (alist, string, predicate, Qt); |
f927c5ae | 1326 | } |
6bbd7a29 | 1327 | allmatches = bucket = Qnil; |
f927c5ae JB |
1328 | |
1329 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1330 | tail = alist; | |
1331 | if (! list) | |
1332 | { | |
1333 | index = 0; | |
1334 | obsize = XVECTOR (alist)->size; | |
1335 | bucket = XVECTOR (alist)->contents[index]; | |
1336 | } | |
1337 | ||
1338 | while (1) | |
1339 | { | |
1340 | /* Get the next element of the alist or obarray. */ | |
1341 | /* Exit the loop if the elements are all used up. */ | |
1342 | /* elt gets the alist element or symbol. | |
1343 | eltstring gets the name to check as a completion. */ | |
1344 | ||
1345 | if (list) | |
1346 | { | |
56a98455 | 1347 | if (NILP (tail)) |
f927c5ae JB |
1348 | break; |
1349 | elt = Fcar (tail); | |
1350 | eltstring = Fcar (elt); | |
1351 | tail = Fcdr (tail); | |
1352 | } | |
1353 | else | |
1354 | { | |
1355 | if (XFASTINT (bucket) != 0) | |
1356 | { | |
1357 | elt = bucket; | |
1358 | eltstring = Fsymbol_name (elt); | |
1359 | if (XSYMBOL (bucket)->next) | |
1360 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1361 | else | |
5a866662 | 1362 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1363 | } |
1364 | else if (++index >= obsize) | |
1365 | break; | |
1366 | else | |
1367 | { | |
1368 | bucket = XVECTOR (alist)->contents[index]; | |
1369 | continue; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | /* Is this element a possible completion? */ | |
1374 | ||
7510b296 | 1375 | if (STRINGP (eltstring) |
7d315986 | 1376 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
89a255dc | 1377 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 | 1378 | unless the input starts with space. */ |
fc932ac6 | 1379 | && ((STRING_BYTES (XSTRING (string)) > 0 |
af2b7cd5 | 1380 | && XSTRING (string)->data[0] == ' ') |
89a255dc RS |
1381 | || XSTRING (eltstring)->data[0] != ' ' |
1382 | || NILP (hide_spaces)) | |
69f4ef20 RS |
1383 | && (tem = Fcompare_strings (eltstring, make_number (0), |
1384 | make_number (XSTRING (string)->size), | |
1385 | string, make_number (0), | |
1386 | make_number (XSTRING (string)->size), | |
1387 | completion_ignore_case ? Qt : Qnil), | |
1388 | EQ (Qt, tem))) | |
f927c5ae JB |
1389 | { |
1390 | /* Yes. */ | |
42006772 RS |
1391 | Lisp_Object regexps; |
1392 | Lisp_Object zero; | |
5a866662 | 1393 | XSETFASTINT (zero, 0); |
42006772 RS |
1394 | |
1395 | /* Ignore this element if it fails to match all the regexps. */ | |
1396 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1397 | regexps = XCDR (regexps)) |
42006772 | 1398 | { |
7539e11f | 1399 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1400 | if (NILP (tem)) |
1401 | break; | |
1402 | } | |
1403 | if (CONSP (regexps)) | |
1404 | continue; | |
1405 | ||
f927c5ae JB |
1406 | /* Ignore this element if there is a predicate |
1407 | and the predicate doesn't like it. */ | |
1408 | ||
7efd36fc | 1409 | if (!NILP (predicate)) |
f927c5ae | 1410 | { |
7efd36fc | 1411 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1412 | tem = Fcommandp (elt); |
1413 | else | |
1414 | { | |
1415 | GCPRO4 (tail, eltstring, allmatches, string); | |
7efd36fc | 1416 | tem = call1 (predicate, elt); |
f927c5ae JB |
1417 | UNGCPRO; |
1418 | } | |
56a98455 | 1419 | if (NILP (tem)) continue; |
f927c5ae JB |
1420 | } |
1421 | /* Ok => put it on the list. */ | |
1422 | allmatches = Fcons (eltstring, allmatches); | |
1423 | } | |
1424 | } | |
1425 | ||
1426 | return Fnreverse (allmatches); | |
1427 | } | |
1428 | \f | |
1429 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1430 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1431 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
ccf330a6 | 1432 | Lisp_Object Vminibuffer_completing_file_name; |
f927c5ae | 1433 | |
b9d721de JB |
1434 | /* This comment supplies the doc string for completing-read, |
1435 | for make-docfile to see. We cannot put this in the real DEFUN | |
1436 | due to limits in the Unix cpp. | |
1437 | ||
cee54539 | 1438 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
f927c5ae | 1439 | "Read a string in the minibuffer, with completion.\n\ |
f927c5ae JB |
1440 | PROMPT is a string to prompt with; normally it ends in a colon and a space.\n\ |
1441 | TABLE is an alist whose elements' cars are strings, or an obarray.\n\ | |
834938d2 | 1442 | TABLE can also be a function to do the completion itself.\n\ |
f927c5ae | 1443 | PREDICATE limits completion to a subset of TABLE.\n\ |
60e6659c | 1444 | See `try-completion' and `all-completions' for more details\n\ |
6b3faad8 | 1445 | on completion, TABLE, and PREDICATE.\n\ |
cbbc3917 | 1446 | \n\ |
f927c5ae | 1447 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless\n\ |
4ced3209 | 1448 | the input is (or completes to) an element of TABLE or is null.\n\ |
f927c5ae | 1449 | If it is also not t, Return does not exit if it does non-null completion.\n\ |
fab95625 | 1450 | If the input is null, `completing-read' returns an empty string,\n\ |
cbbc3917 RS |
1451 | regardless of the value of REQUIRE-MATCH.\n\ |
1452 | \n\ | |
f927c5ae | 1453 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.\n\ |
770970cb RS |
1454 | If it is (STRING . POSITION), the initial input\n\ |
1455 | is STRING, but point is placed POSITION characters into the string.\n\ | |
cb615a61 | 1456 | This feature is deprecated--it is best to pass nil for INITIAL.\n\ |
770970cb RS |
1457 | HIST, if non-nil, specifies a history list\n\ |
1458 | and optionally the initial position in the list.\n\ | |
1459 | It can be a symbol, which is the history list variable to use,\n\ | |
1460 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
1461 | In that case, HISTVAR is the history list variable to use,\n\ | |
1462 | and HISTPOS is the initial position (the position in the list\n\ | |
4356f221 | 1463 | which INITIAL-INPUT corresponds to).\n\ |
770970cb | 1464 | Positions are counted starting from 1 at the beginning of the list.\n\ |
cee54539 KH |
1465 | DEF, if non-nil, is the default value.\n\ |
1466 | \n\ | |
1467 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits\n\ | |
c8c15521 | 1468 | the current input method and the setting of enable-multibyte-characters.\n\ |
cee54539 | 1469 | \n\ |
770970cb | 1470 | Completion ignores case if the ambient value of\n\ |
b9d721de JB |
1471 | `completion-ignore-case' is non-nil." |
1472 | */ | |
cee54539 | 1473 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
b9d721de | 1474 | 0 /* See immediately above */) |
d43f85c2 RS |
1475 | (prompt, table, predicate, require_match, initial_input, hist, def, inherit_input_method) |
1476 | Lisp_Object prompt, table, predicate, require_match, initial_input; | |
1477 | Lisp_Object hist, def, inherit_input_method; | |
f927c5ae | 1478 | { |
770970cb | 1479 | Lisp_Object val, histvar, histpos, position; |
d43f85c2 | 1480 | Lisp_Object init; |
770970cb | 1481 | int pos = 0; |
f927c5ae | 1482 | int count = specpdl_ptr - specpdl; |
0c8ee1a2 RS |
1483 | struct gcpro gcpro1; |
1484 | ||
d43f85c2 | 1485 | init = initial_input; |
0c8ee1a2 RS |
1486 | GCPRO1 (def); |
1487 | ||
f927c5ae | 1488 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1489 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae JB |
1490 | specbind (Qminibuffer_completion_confirm, |
1491 | EQ (require_match, Qt) ? Qnil : Qt); | |
1492 | last_exact_completion = Qnil; | |
770970cb RS |
1493 | |
1494 | position = Qnil; | |
1495 | if (!NILP (init)) | |
1496 | { | |
7510b296 | 1497 | if (CONSP (init)) |
770970cb RS |
1498 | { |
1499 | position = Fcdr (init); | |
1500 | init = Fcar (init); | |
1501 | } | |
1502 | CHECK_STRING (init, 0); | |
1503 | if (!NILP (position)) | |
1504 | { | |
1505 | CHECK_NUMBER (position, 0); | |
1506 | /* Convert to distance from end of input. */ | |
5dadd3a2 | 1507 | pos = XINT (position) - XSTRING (init)->size; |
770970cb RS |
1508 | } |
1509 | } | |
1510 | ||
7510b296 | 1511 | if (SYMBOLP (hist)) |
770970cb RS |
1512 | { |
1513 | histvar = hist; | |
1514 | histpos = Qnil; | |
1515 | } | |
1516 | else | |
1517 | { | |
1518 | histvar = Fcar_safe (hist); | |
1519 | histpos = Fcdr_safe (hist); | |
1520 | } | |
1521 | if (NILP (histvar)) | |
1522 | histvar = Qminibuffer_history; | |
1523 | if (NILP (histpos)) | |
5a866662 | 1524 | XSETFASTINT (histpos, 0); |
770970cb | 1525 | |
56a98455 | 1526 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1527 | ? Vminibuffer_local_completion_map |
1528 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1529 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1530 | histvar, histpos, def, 0, |
1531 | !NILP (inherit_input_method)); | |
b9a86585 RS |
1532 | |
1533 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (def)) | |
1534 | val = def; | |
1535 | ||
0c8ee1a2 | 1536 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1537 | } |
1538 | \f | |
f927c5ae | 1539 | Lisp_Object Fminibuffer_completion_help (); |
52b14ac0 | 1540 | Lisp_Object assoc_for_completion (); |
5d2ca7ae RS |
1541 | |
1542 | /* Test whether TXT is an exact completion. */ | |
1543 | Lisp_Object | |
1544 | test_completion (txt) | |
1545 | Lisp_Object txt; | |
1546 | { | |
1547 | Lisp_Object tem; | |
1548 | ||
1549 | if (CONSP (Vminibuffer_completion_table) | |
1550 | || NILP (Vminibuffer_completion_table)) | |
1551 | return assoc_for_completion (txt, Vminibuffer_completion_table); | |
1552 | else if (VECTORP (Vminibuffer_completion_table)) | |
1553 | { | |
1554 | /* Bypass intern-soft as that loses for nil */ | |
1555 | tem = oblookup (Vminibuffer_completion_table, | |
af2b7cd5 RS |
1556 | XSTRING (txt)->data, |
1557 | XSTRING (txt)->size, | |
fc932ac6 | 1558 | STRING_BYTES (XSTRING (txt))); |
44472c88 | 1559 | if (!SYMBOLP (tem)) |
9404446f RS |
1560 | { |
1561 | if (STRING_MULTIBYTE (txt)) | |
1562 | txt = Fstring_make_unibyte (txt); | |
1563 | else | |
1564 | txt = Fstring_make_multibyte (txt); | |
1565 | ||
1566 | tem = oblookup (Vminibuffer_completion_table, | |
1567 | XSTRING (txt)->data, | |
1568 | XSTRING (txt)->size, | |
1569 | STRING_BYTES (XSTRING (txt))); | |
1570 | if (!SYMBOLP (tem)) | |
1571 | return Qnil; | |
1572 | } | |
1573 | if (!NILP (Vminibuffer_completion_predicate)) | |
5d2ca7ae RS |
1574 | return call1 (Vminibuffer_completion_predicate, tem); |
1575 | else | |
1576 | return Qt; | |
1577 | } | |
1578 | else | |
1579 | return call3 (Vminibuffer_completion_table, txt, | |
1580 | Vminibuffer_completion_predicate, Qlambda); | |
1581 | } | |
f927c5ae JB |
1582 | |
1583 | /* returns: | |
1584 | * 0 no possible completion | |
1585 | * 1 was already an exact and unique completion | |
1586 | * 3 was already an exact completion | |
1587 | * 4 completed to an exact completion | |
1588 | * 5 some completion happened | |
1589 | * 6 no completion happened | |
1590 | */ | |
1591 | int | |
1592 | do_completion () | |
1593 | { | |
0c80756e | 1594 | Lisp_Object completion, string, tem; |
f927c5ae JB |
1595 | int completedp; |
1596 | Lisp_Object last; | |
1e00c2ff | 1597 | struct gcpro gcpro1, gcpro2; |
f927c5ae | 1598 | |
7c752c80 | 1599 | completion = Ftry_completion (Ffield_string (make_number (ZV)), |
8e9968c6 | 1600 | Vminibuffer_completion_table, |
f927c5ae JB |
1601 | Vminibuffer_completion_predicate); |
1602 | last = last_exact_completion; | |
1603 | last_exact_completion = Qnil; | |
1604 | ||
4f9b95e5 KH |
1605 | GCPRO2 (completion, last); |
1606 | ||
56a98455 | 1607 | if (NILP (completion)) |
f927c5ae JB |
1608 | { |
1609 | bitch_at_user (); | |
1610 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1611 | UNGCPRO; |
f927c5ae JB |
1612 | return 0; |
1613 | } | |
1614 | ||
1615 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1616 | { |
1617 | UNGCPRO; | |
1618 | return 1; | |
1619 | } | |
f927c5ae | 1620 | |
0c80756e MB |
1621 | string = Ffield_string (make_number (ZV)); |
1622 | ||
1623 | /* COMPLETEDP should be true if some completion was done, which | |
1624 | doesn't include simply changing the case of the entered string. | |
1625 | However, for appearance, the string is rewritten if the case | |
1626 | changes. */ | |
1627 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qt); | |
01cce3e7 | 1628 | completedp = !EQ (tem, Qt); |
0c80756e | 1629 | |
7892a68b KH |
1630 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qnil); |
1631 | if (!EQ (tem, Qt)) | |
0c80756e | 1632 | /* Rewrite the user's input. */ |
f927c5ae | 1633 | { |
98cbb9a3 | 1634 | Fdelete_field (make_number (ZV)); /* Some completion happened */ |
f927c5ae | 1635 | Finsert (1, &completion); |
6e69ab8c MB |
1636 | |
1637 | if (! completedp) | |
1638 | /* The case of the string changed, but that's all. We're not | |
1639 | sure whether this is a unique completion or not, so try again | |
1640 | using the real case (this shouldn't recurse again, because | |
1641 | the next time try-completion will return either `t' or the | |
1642 | exact string). */ | |
1643 | { | |
1644 | UNGCPRO; | |
1645 | return do_completion (); | |
1646 | } | |
f927c5ae JB |
1647 | } |
1648 | ||
1649 | /* It did find a match. Do we match some possibility exactly now? */ | |
7c752c80 | 1650 | tem = test_completion (Ffield_string (make_number (ZV))); |
56a98455 | 1651 | if (NILP (tem)) |
1e00c2ff KH |
1652 | { |
1653 | /* not an exact match */ | |
1654 | UNGCPRO; | |
f927c5ae JB |
1655 | if (completedp) |
1656 | return 5; | |
739cc391 | 1657 | else if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1658 | Fminibuffer_completion_help (); |
1659 | else | |
1660 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1661 | return 6; | |
1662 | } | |
1663 | else if (completedp) | |
1e00c2ff KH |
1664 | { |
1665 | UNGCPRO; | |
1666 | return 4; | |
1667 | } | |
f927c5ae JB |
1668 | /* If the last exact completion and this one were the same, |
1669 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1670 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1671 | last_exact_completion = completion; |
56a98455 | 1672 | if (!NILP (last)) |
f927c5ae | 1673 | { |
7c752c80 | 1674 | tem = Ffield_string (make_number (ZV)); |
56a98455 | 1675 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1676 | Fminibuffer_completion_help (); |
1677 | } | |
1e00c2ff | 1678 | UNGCPRO; |
f927c5ae | 1679 | return 3; |
f927c5ae | 1680 | } |
1e00c2ff | 1681 | |
52b14ac0 JB |
1682 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1683 | ||
1684 | Lisp_Object | |
1685 | assoc_for_completion (key, list) | |
1686 | register Lisp_Object key; | |
1687 | Lisp_Object list; | |
1688 | { | |
1689 | register Lisp_Object tail; | |
1690 | ||
56a98455 | 1691 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1692 | { |
1693 | register Lisp_Object elt, tem, thiscar; | |
1694 | elt = Fcar (tail); | |
1695 | if (!CONSP (elt)) continue; | |
1696 | thiscar = Fcar (elt); | |
7510b296 | 1697 | if (!STRINGP (thiscar)) |
52b14ac0 | 1698 | continue; |
9404446f RS |
1699 | tem = Fcompare_strings (thiscar, make_number (0), Qnil, |
1700 | key, make_number (0), Qnil, | |
1701 | completion_ignore_case ? Qt : Qnil); | |
1702 | if (EQ (tem, Qt)) | |
1703 | return elt; | |
52b14ac0 JB |
1704 | QUIT; |
1705 | } | |
1706 | return Qnil; | |
1707 | } | |
f927c5ae JB |
1708 | |
1709 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
6300d782 | 1710 | "Complete the minibuffer contents as far as possible.\n\ |
2cb6da5c RS |
1711 | Return nil if there is no valid completion, else t.\n\ |
1712 | If no characters can be completed, display a list of possible completions.\n\ | |
1713 | If you repeat this command after it displayed such a list,\n\ | |
1714 | scroll the window of possible completions.") | |
f927c5ae JB |
1715 | () |
1716 | { | |
2cb6da5c RS |
1717 | register int i; |
1718 | Lisp_Object window, tem; | |
1719 | ||
df902b62 RS |
1720 | /* If the previous command was not this, |
1721 | mark the completion buffer obsolete. */ | |
1722 | if (! EQ (current_kboard->Vlast_command, Vthis_command)) | |
2cb6da5c RS |
1723 | Vminibuf_scroll_window = Qnil; |
1724 | ||
1725 | window = Vminibuf_scroll_window; | |
1726 | /* If there's a fresh completion window with a live buffer, | |
1727 | and this command is repeated, scroll that window. */ | |
1728 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1729 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1730 | { | |
1731 | struct buffer *obuf = current_buffer; | |
1732 | ||
1733 | Fset_buffer (XWINDOW (window)->buffer); | |
7d7c3861 | 1734 | tem = Fpos_visible_in_window_p (make_number (ZV), window, Qnil); |
2cb6da5c RS |
1735 | if (! NILP (tem)) |
1736 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1737 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1738 | else |
1739 | /* Else scroll down one screen. */ | |
1740 | Fscroll_other_window (Qnil); | |
1741 | ||
1742 | set_buffer_internal (obuf); | |
1743 | return Qnil; | |
1744 | } | |
1745 | ||
1746 | i = do_completion (); | |
f927c5ae JB |
1747 | switch (i) |
1748 | { | |
1749 | case 0: | |
1750 | return Qnil; | |
1751 | ||
1752 | case 1: | |
a1c5aa96 GM |
1753 | if (PT != ZV) |
1754 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1755 | temp_echo_area_glyphs (" [Sole completion]"); |
1756 | break; | |
1757 | ||
1758 | case 3: | |
9994cc69 GM |
1759 | if (PT != ZV) |
1760 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1761 | temp_echo_area_glyphs (" [Complete, but not unique]"); |
1762 | break; | |
1763 | } | |
1764 | ||
1765 | return Qt; | |
1766 | } | |
e4c97a67 RS |
1767 | \f |
1768 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1769 | ||
1770 | /* This one is called by internal_condition_case to do the real work. */ | |
1771 | ||
1772 | Lisp_Object | |
1773 | complete_and_exit_1 () | |
1774 | { | |
1775 | return make_number (do_completion ()); | |
1776 | } | |
1777 | ||
1778 | /* This one is called by internal_condition_case if an error happens. | |
1779 | Pretend the current value is an exact match. */ | |
1780 | ||
1781 | Lisp_Object | |
1782 | complete_and_exit_2 (ignore) | |
1783 | Lisp_Object ignore; | |
1784 | { | |
1785 | return make_number (1); | |
1786 | } | |
f927c5ae JB |
1787 | |
1788 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
1789 | Sminibuffer_complete_and_exit, 0, 0, "", | |
5d2ca7ae RS |
1790 | "If the minibuffer contents is a valid completion then exit.\n\ |
1791 | Otherwise try to complete it. If completion leads to a valid completion,\n\ | |
f927c5ae JB |
1792 | a repetition of this command will exit.") |
1793 | () | |
1794 | { | |
1795 | register int i; | |
e4c97a67 | 1796 | Lisp_Object val; |
f927c5ae JB |
1797 | |
1798 | /* Allow user to specify null string */ | |
7c752c80 | 1799 | if (XINT (Ffield_beginning (make_number (ZV), Qnil)) == ZV) |
f927c5ae JB |
1800 | goto exit; |
1801 | ||
7c752c80 | 1802 | if (!NILP (test_completion (Ffield_string (make_number (ZV))))) |
5d2ca7ae RS |
1803 | goto exit; |
1804 | ||
e4c97a67 RS |
1805 | /* Call do_completion, but ignore errors. */ |
1806 | val = internal_condition_case (complete_and_exit_1, Qerror, | |
1807 | complete_and_exit_2); | |
1808 | ||
1809 | i = XFASTINT (val); | |
f927c5ae JB |
1810 | switch (i) |
1811 | { | |
1812 | case 1: | |
1813 | case 3: | |
1814 | goto exit; | |
1815 | ||
1816 | case 4: | |
56a98455 | 1817 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1818 | { |
1819 | temp_echo_area_glyphs (" [Confirm]"); | |
1820 | return Qnil; | |
1821 | } | |
1822 | else | |
1823 | goto exit; | |
1824 | ||
1825 | default: | |
1826 | return Qnil; | |
1827 | } | |
1828 | exit: | |
6bbd7a29 | 1829 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
1830 | /* NOTREACHED */ |
1831 | } | |
1832 | ||
1833 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
1834 | 0, 0, "", | |
1835 | "Complete the minibuffer contents at most a single word.\n\ | |
1836 | After one word is completed as much as possible, a space or hyphen\n\ | |
6300d782 KH |
1837 | is added, provided that matches some possible completion.\n\ |
1838 | Return nil if there is no valid completion, else t.") | |
f927c5ae JB |
1839 | () |
1840 | { | |
69f4ef20 | 1841 | Lisp_Object completion, tem, tem1; |
af2b7cd5 | 1842 | register int i, i_byte; |
f927c5ae | 1843 | register unsigned char *completion_string; |
d7be4211 | 1844 | struct gcpro gcpro1, gcpro2; |
8e9968c6 | 1845 | int prompt_end_charpos; |
b278606c BF |
1846 | |
1847 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1848 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae | 1849 | |
7c752c80 | 1850 | completion = Ftry_completion (Ffield_string (make_number (ZV)), |
f927c5ae JB |
1851 | Vminibuffer_completion_table, |
1852 | Vminibuffer_completion_predicate); | |
56a98455 | 1853 | if (NILP (completion)) |
f927c5ae JB |
1854 | { |
1855 | bitch_at_user (); | |
1856 | temp_echo_area_glyphs (" [No match]"); | |
1857 | return Qnil; | |
1858 | } | |
1859 | if (EQ (completion, Qt)) | |
1860 | return Qnil; | |
1861 | ||
b278606c | 1862 | #if 0 /* How the below code used to look, for reference. */ |
7c752c80 | 1863 | tem = Ffield_string (make_number (ZV)); |
f927c5ae JB |
1864 | b = XSTRING (tem)->data; |
1865 | i = ZV - 1 - XSTRING (completion)->size; | |
1866 | p = XSTRING (completion)->data; | |
1867 | if (i > 0 || | |
1868 | 0 <= scmp (b, p, ZV - 1)) | |
1869 | { | |
1870 | i = 1; | |
1871 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1872 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1873 | i++; | |
1874 | del_range (1, i + 1); | |
1875 | SET_PT (ZV); | |
1876 | } | |
1877 | #else /* Rewritten code */ | |
1878 | { | |
69f4ef20 | 1879 | int buffer_nchars, completion_nchars; |
f927c5ae | 1880 | |
59860a8c | 1881 | CHECK_STRING (completion, 0); |
7c752c80 | 1882 | tem = Ffield_string (make_number (ZV)); |
d7be4211 | 1883 | GCPRO2 (completion, tem); |
719b4a40 RS |
1884 | /* If reading a file name, |
1885 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
ccf330a6 | 1886 | if (! NILP (Vminibuffer_completing_file_name)) |
719b4a40 RS |
1887 | { |
1888 | Lisp_Object substituted; | |
1889 | substituted = Fsubstitute_in_file_name (tem); | |
1890 | if (! EQ (substituted, tem)) | |
1891 | { | |
1892 | tem = substituted; | |
98cbb9a3 | 1893 | Fdelete_field (make_number (ZV)); |
af2b7cd5 | 1894 | insert_from_string (tem, 0, 0, XSTRING (tem)->size, |
fc932ac6 | 1895 | STRING_BYTES (XSTRING (tem)), 0); |
719b4a40 RS |
1896 | } |
1897 | } | |
69f4ef20 RS |
1898 | buffer_nchars = XSTRING (tem)->size; /* ie ZV - BEGV */ |
1899 | completion_nchars = XSTRING (completion)->size; | |
1900 | i = buffer_nchars - completion_nchars; | |
1901 | if (i > 0 | |
1902 | || | |
1903 | (tem1 = Fcompare_strings (tem, make_number (0), | |
1904 | make_number (buffer_nchars), | |
1905 | completion, make_number (0), | |
1906 | make_number (buffer_nchars), | |
1907 | completion_ignore_case ? Qt : Qnil), | |
1908 | ! EQ (tem1, Qt))) | |
f927c5ae | 1909 | { |
69f4ef20 RS |
1910 | int start_pos; |
1911 | ||
1912 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1913 | if (i <= 0) i = 1; | |
1914 | start_pos= i; | |
1915 | buffer_nchars -= i; | |
669c6673 | 1916 | while (i > 0) |
69f4ef20 | 1917 | { |
669c6673 | 1918 | tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil, |
69f4ef20 RS |
1919 | completion, make_number (0), |
1920 | make_number (buffer_nchars), | |
1921 | completion_ignore_case ? Qt : Qnil); | |
1922 | start_pos++; | |
1923 | if (EQ (tem1, Qt)) | |
1924 | break; | |
1925 | i++; | |
669c6673 | 1926 | buffer_nchars--; |
69f4ef20 RS |
1927 | } |
1928 | del_range (1, i + 1); | |
a9c26562 | 1929 | SET_PT_BOTH (ZV, ZV_BYTE); |
f927c5ae | 1930 | } |
d7be4211 | 1931 | UNGCPRO; |
f927c5ae JB |
1932 | } |
1933 | #endif /* Rewritten code */ | |
279cf52c | 1934 | |
7c752c80 | 1935 | prompt_end_charpos = XINT (Ffield_beginning (make_number (ZV), Qnil)); |
8e9968c6 | 1936 | |
279cf52c | 1937 | { |
8e9968c6 | 1938 | int prompt_end_bytepos; |
279cf52c GM |
1939 | prompt_end_bytepos = CHAR_TO_BYTE (prompt_end_charpos); |
1940 | i = ZV - prompt_end_charpos; | |
1941 | i_byte = ZV_BYTE - prompt_end_bytepos; | |
1942 | } | |
f927c5ae JB |
1943 | |
1944 | /* If completion finds next char not unique, | |
b278606c | 1945 | consider adding a space or a hyphen. */ |
f927c5ae JB |
1946 | if (i == XSTRING (completion)->size) |
1947 | { | |
b278606c | 1948 | GCPRO1 (completion); |
7c752c80 | 1949 | tem = Ftry_completion (concat2 (Ffield_string (make_number (ZV)), build_string (" ")), |
f927c5ae JB |
1950 | Vminibuffer_completion_table, |
1951 | Vminibuffer_completion_predicate); | |
b278606c BF |
1952 | UNGCPRO; |
1953 | ||
7510b296 | 1954 | if (STRINGP (tem)) |
f927c5ae JB |
1955 | completion = tem; |
1956 | else | |
1957 | { | |
b278606c BF |
1958 | GCPRO1 (completion); |
1959 | tem = | |
7c752c80 | 1960 | Ftry_completion (concat2 (Ffield_string (make_number (ZV)), build_string ("-")), |
b278606c BF |
1961 | Vminibuffer_completion_table, |
1962 | Vminibuffer_completion_predicate); | |
1963 | UNGCPRO; | |
1964 | ||
7510b296 | 1965 | if (STRINGP (tem)) |
f927c5ae JB |
1966 | completion = tem; |
1967 | } | |
1968 | } | |
1969 | ||
1970 | /* Now find first word-break in the stuff found by completion. | |
1971 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
1972 | { |
1973 | int len, c; | |
54643b2c | 1974 | int bytes = STRING_BYTES (XSTRING (completion)); |
d50a3d2a | 1975 | completion_string = XSTRING (completion)->data; |
fc932ac6 | 1976 | for (; i_byte < STRING_BYTES (XSTRING (completion)); i_byte += len, i++) |
d50a3d2a | 1977 | { |
af2b7cd5 | 1978 | c = STRING_CHAR_AND_LENGTH (completion_string + i_byte, |
54643b2c | 1979 | bytes - i_byte, |
d50a3d2a KH |
1980 | len); |
1981 | if (SYNTAX (c) != Sword) | |
1982 | { | |
af2b7cd5 RS |
1983 | i_byte += len; |
1984 | i++; | |
d50a3d2a KH |
1985 | break; |
1986 | } | |
1987 | } | |
1988 | } | |
f927c5ae JB |
1989 | |
1990 | /* If got no characters, print help for user. */ | |
1991 | ||
8e9968c6 | 1992 | if (i == ZV - prompt_end_charpos) |
f927c5ae | 1993 | { |
739cc391 | 1994 | if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1995 | Fminibuffer_completion_help (); |
1996 | return Qnil; | |
1997 | } | |
1998 | ||
1999 | /* Otherwise insert in minibuffer the chars we got */ | |
2000 | ||
98cbb9a3 | 2001 | Fdelete_field (make_number (ZV)); |
af2b7cd5 | 2002 | insert_from_string (completion, 0, 0, i, i_byte, 1); |
f927c5ae JB |
2003 | return Qt; |
2004 | } | |
2005 | \f | |
2006 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
2007 | 1, 1, 0, | |
2dc2b736 | 2008 | "Display the list of completions, COMPLETIONS, using `standard-output'.\n\ |
f927c5ae | 2009 | Each element may be just a symbol or string\n\ |
2d7e41fe RS |
2010 | or may be a list of two strings to be printed as if concatenated.\n\ |
2011 | `standard-output' must be a buffer.\n\ | |
5744fa7c RS |
2012 | The actual completion alternatives, as inserted, are given `mouse-face'\n\ |
2013 | properties of `highlight'.\n\ | |
2014 | At the end, this runs the normal hook `completion-setup-hook'.\n\ | |
2d7e41fe | 2015 | It can find the completion buffer in `standard-output'.") |
f927c5ae JB |
2016 | (completions) |
2017 | Lisp_Object completions; | |
2018 | { | |
dae36123 | 2019 | Lisp_Object tail, elt; |
f927c5ae | 2020 | register int i; |
2dc2b736 | 2021 | int column = 0; |
dae36123 | 2022 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 2023 | struct buffer *old = current_buffer; |
681f5af4 | 2024 | int first = 1; |
486cc7fb RS |
2025 | |
2026 | /* Note that (when it matters) every variable | |
dae36123 RS |
2027 | points to a non-string that is pointed to by COMPLETIONS, |
2028 | except for ELT. ELT can be pointing to a string | |
2029 | when terpri or Findent_to calls a change hook. */ | |
2030 | elt = Qnil; | |
2031 | GCPRO2 (completions, elt); | |
486cc7fb | 2032 | |
7510b296 | 2033 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 2034 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 2035 | |
56a98455 | 2036 | if (NILP (completions)) |
cfc736bf RS |
2037 | write_string ("There are no possible completions of what you have typed.", |
2038 | -1); | |
f927c5ae JB |
2039 | else |
2040 | { | |
2dc2b736 | 2041 | write_string ("Possible completions are:", -1); |
56a98455 | 2042 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 2043 | { |
ec067ec7 | 2044 | Lisp_Object tem, string; |
681f5af4 | 2045 | int length; |
47d7d104 | 2046 | Lisp_Object startpos, endpos; |
681f5af4 | 2047 | |
6bbd7a29 GM |
2048 | startpos = Qnil; |
2049 | ||
681f5af4 RS |
2050 | elt = Fcar (tail); |
2051 | /* Compute the length of this element. */ | |
2052 | if (CONSP (elt)) | |
2053 | { | |
49db96ce | 2054 | tem = XCAR (elt); |
681f5af4 | 2055 | CHECK_STRING (tem, 0); |
49db96ce | 2056 | length = XSTRING (tem)->size; |
681f5af4 | 2057 | |
49db96ce | 2058 | tem = Fcar (XCDR (elt)); |
681f5af4 | 2059 | CHECK_STRING (tem, 0); |
49db96ce | 2060 | length += XSTRING (tem)->size; |
681f5af4 RS |
2061 | } |
2062 | else | |
2063 | { | |
2064 | CHECK_STRING (elt, 0); | |
49db96ce | 2065 | length = XSTRING (elt)->size; |
681f5af4 RS |
2066 | } |
2067 | ||
2068 | /* This does a bad job for narrower than usual windows. | |
2069 | Sadly, the window it will appear in is not known | |
2070 | until after the text has been made. */ | |
2071 | ||
47d7d104 RS |
2072 | if (BUFFERP (Vstandard_output)) |
2073 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2074 | ||
681f5af4 RS |
2075 | /* If the previous completion was very wide, |
2076 | or we have two on this line already, | |
2077 | don't put another on the same line. */ | |
2078 | if (column > 33 || first | |
2079 | /* If this is really wide, don't put it second on a line. */ | |
13c67cc6 | 2080 | || (column > 0 && length > 45)) |
681f5af4 RS |
2081 | { |
2082 | Fterpri (Qnil); | |
2083 | column = 0; | |
2084 | } | |
2085 | /* Otherwise advance to column 35. */ | |
2086 | else | |
2dc2b736 | 2087 | { |
7510b296 | 2088 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
2089 | { |
2090 | tem = Findent_to (make_number (35), make_number (2)); | |
47d7d104 | 2091 | |
681f5af4 RS |
2092 | column = XINT (tem); |
2093 | } | |
2dc2b736 RS |
2094 | else |
2095 | { | |
2096 | do | |
2097 | { | |
2098 | write_string (" ", -1); | |
2099 | column++; | |
2100 | } | |
2101 | while (column < 35); | |
2102 | } | |
2103 | } | |
681f5af4 | 2104 | |
47d7d104 RS |
2105 | if (BUFFERP (Vstandard_output)) |
2106 | { | |
2107 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2108 | Fset_text_properties (startpos, endpos, | |
2109 | Qnil, Vstandard_output); | |
2110 | } | |
2111 | ||
ec067ec7 | 2112 | /* Output this element. |
9404446f | 2113 | If necessary, convert it to unibyte or to multibyte first. */ |
f927c5ae | 2114 | if (CONSP (elt)) |
ec067ec7 | 2115 | string = Fcar (elt); |
f927c5ae | 2116 | else |
ec067ec7 RS |
2117 | string = elt; |
2118 | if (NILP (current_buffer->enable_multibyte_characters) | |
2119 | && STRING_MULTIBYTE (string)) | |
2120 | string = Fstring_make_unibyte (string); | |
9404446f RS |
2121 | else if (!NILP (current_buffer->enable_multibyte_characters) |
2122 | && !STRING_MULTIBYTE (string)) | |
2123 | string = Fstring_make_multibyte (string); | |
5744fa7c RS |
2124 | |
2125 | if (BUFFERP (Vstandard_output)) | |
2126 | { | |
4b37311e | 2127 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c RS |
2128 | |
2129 | Fprinc (string, Qnil); | |
2130 | ||
4b37311e | 2131 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c | 2132 | |
4b37311e | 2133 | Fput_text_property (startpos, endpos, |
5744fa7c RS |
2134 | Qmouse_face, intern ("highlight"), |
2135 | Vstandard_output); | |
2136 | } | |
2137 | else | |
2138 | { | |
2139 | Fprinc (string, Qnil); | |
2140 | } | |
ec067ec7 RS |
2141 | |
2142 | /* Output the annotation for this element. */ | |
2143 | if (CONSP (elt)) | |
4b37311e RS |
2144 | { |
2145 | if (BUFFERP (Vstandard_output)) | |
2146 | { | |
2147 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2148 | ||
2149 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2150 | ||
2151 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2152 | ||
2153 | Fset_text_properties (startpos, endpos, Qnil, | |
2154 | Vstandard_output); | |
2155 | } | |
2156 | else | |
2157 | { | |
2158 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2159 | } | |
2160 | } | |
2161 | ||
681f5af4 | 2162 | |
ec067ec7 | 2163 | /* Update COLUMN for what we have output. */ |
681f5af4 RS |
2164 | column += length; |
2165 | ||
2166 | /* If output is to a buffer, recompute COLUMN in a way | |
2167 | that takes account of character widths. */ | |
2168 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 2169 | { |
681f5af4 RS |
2170 | tem = Fcurrent_column (); |
2171 | column = XINT (tem); | |
2dc2b736 | 2172 | } |
681f5af4 RS |
2173 | |
2174 | first = 0; | |
f927c5ae JB |
2175 | } |
2176 | } | |
2dc2b736 | 2177 | |
486cc7fb RS |
2178 | UNGCPRO; |
2179 | ||
7510b296 | 2180 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
2181 | set_buffer_internal (old); |
2182 | ||
cfc736bf RS |
2183 | if (!NILP (Vrun_hooks)) |
2184 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
2185 | ||
f927c5ae JB |
2186 | return Qnil; |
2187 | } | |
2188 | ||
2189 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
2190 | 0, 0, "", | |
2191 | "Display a list of possible completions of the current minibuffer contents.") | |
2192 | () | |
2193 | { | |
2194 | Lisp_Object completions; | |
2195 | ||
2196 | message ("Making completion list..."); | |
7c752c80 | 2197 | completions = Fall_completions (Ffield_string (make_number (ZV)), |
f927c5ae | 2198 | Vminibuffer_completion_table, |
89a255dc RS |
2199 | Vminibuffer_completion_predicate, |
2200 | Qt); | |
39e98b38 | 2201 | clear_message (1, 0); |
f927c5ae | 2202 | |
56a98455 | 2203 | if (NILP (completions)) |
f927c5ae JB |
2204 | { |
2205 | bitch_at_user (); | |
2206 | temp_echo_area_glyphs (" [No completions]"); | |
2207 | } | |
2208 | else | |
2209 | internal_with_output_to_temp_buffer ("*Completions*", | |
2210 | Fdisplay_completion_list, | |
2211 | Fsort (completions, Qstring_lessp)); | |
2212 | return Qnil; | |
2213 | } | |
2214 | \f | |
2215 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
2216 | "Terminate minibuffer input.") | |
2217 | () | |
2218 | { | |
7510b296 | 2219 | if (INTEGERP (last_command_char)) |
dab3ab3c | 2220 | internal_self_insert (XINT (last_command_char), 0); |
f927c5ae JB |
2221 | else |
2222 | bitch_at_user (); | |
2223 | ||
6bbd7a29 | 2224 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2225 | } |
2226 | ||
2227 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
2228 | "Terminate this minibuffer argument.") | |
2229 | () | |
2230 | { | |
6bbd7a29 | 2231 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2232 | } |
2233 | ||
2234 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
2235 | "Return current depth of activations of minibuffer, a nonnegative integer.") | |
2236 | () | |
2237 | { | |
2238 | return make_number (minibuf_level); | |
2239 | } | |
2240 | ||
37e9a934 KH |
2241 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
2242 | "Return the prompt string of the currently-active minibuffer.\n\ | |
2243 | If no minibuffer is active, return nil.") | |
2244 | () | |
2245 | { | |
4d04c1f1 | 2246 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
2247 | } |
2248 | ||
f927c5ae | 2249 | \f |
2d955a50 RS |
2250 | /* Temporarily display the string M at the end of the current |
2251 | minibuffer contents. This is used to display things like | |
2252 | "[No Match]" when the user requests a completion for a prefix | |
2253 | that has no possible completions, and other quick, unobtrusive | |
2254 | messages. */ | |
2255 | ||
9d815fd9 | 2256 | void |
2d955a50 RS |
2257 | temp_echo_area_glyphs (m) |
2258 | char *m; | |
2259 | { | |
2260 | int osize = ZV; | |
a9c26562 | 2261 | int osize_byte = ZV_BYTE; |
2d955a50 | 2262 | int opoint = PT; |
a9c26562 | 2263 | int opoint_byte = PT_BYTE; |
2d955a50 RS |
2264 | Lisp_Object oinhibit; |
2265 | oinhibit = Vinhibit_quit; | |
2266 | ||
2267 | /* Clear out any old echo-area message to make way for our new thing. */ | |
2268 | message (0); | |
2269 | ||
a9c26562 | 2270 | SET_PT_BOTH (osize, osize_byte); |
2d955a50 | 2271 | insert_string (m); |
a9c26562 | 2272 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2273 | Vinhibit_quit = Qt; |
2274 | Fsit_for (make_number (2), Qnil, Qnil); | |
bc69581b | 2275 | del_range_both (osize, osize_byte, ZV, ZV_BYTE, 1); |
a9c26562 | 2276 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2277 | if (!NILP (Vquit_flag)) |
2278 | { | |
2279 | Vquit_flag = Qnil; | |
2280 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
2281 | } | |
2282 | Vinhibit_quit = oinhibit; | |
2283 | } | |
2284 | ||
2285 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
2286 | 1, 1, 0, | |
2287 | "Temporarily display STRING at the end of the minibuffer.\n\ | |
2288 | The text is displayed for two seconds,\n\ | |
2289 | or until the next input event arrives, whichever comes first.") | |
2290 | (string) | |
2291 | Lisp_Object string; | |
2292 | { | |
2293 | temp_echo_area_glyphs (XSTRING (string)->data); | |
2294 | return Qnil; | |
2295 | } | |
2296 | \f | |
9d815fd9 | 2297 | void |
f927c5ae JB |
2298 | init_minibuf_once () |
2299 | { | |
2300 | Vminibuffer_list = Qnil; | |
2301 | staticpro (&Vminibuffer_list); | |
2302 | } | |
2303 | ||
9d815fd9 | 2304 | void |
f927c5ae JB |
2305 | syms_of_minibuf () |
2306 | { | |
2307 | minibuf_level = 0; | |
4d04c1f1 KH |
2308 | minibuf_prompt = Qnil; |
2309 | staticpro (&minibuf_prompt); | |
2310 | ||
2311 | minibuf_save_list = Qnil; | |
2312 | staticpro (&minibuf_save_list); | |
f927c5ae | 2313 | |
719b4a40 RS |
2314 | Qread_file_name_internal = intern ("read-file-name-internal"); |
2315 | staticpro (&Qread_file_name_internal); | |
2316 | ||
e5d4686b RS |
2317 | Qminibuffer_default = intern ("minibuffer-default"); |
2318 | staticpro (&Qminibuffer_default); | |
2319 | Fset (Qminibuffer_default, Qnil); | |
2320 | ||
f927c5ae JB |
2321 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
2322 | staticpro (&Qminibuffer_completion_table); | |
2323 | ||
2324 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
2325 | staticpro (&Qminibuffer_completion_confirm); | |
2326 | ||
2327 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
2328 | staticpro (&Qminibuffer_completion_predicate); | |
2329 | ||
1e00c2ff KH |
2330 | staticpro (&last_exact_completion); |
2331 | last_exact_completion = Qnil; | |
2332 | ||
f927c5ae JB |
2333 | staticpro (&last_minibuf_string); |
2334 | last_minibuf_string = Qnil; | |
2335 | ||
2336 | Quser_variable_p = intern ("user-variable-p"); | |
2337 | staticpro (&Quser_variable_p); | |
2338 | ||
770970cb RS |
2339 | Qminibuffer_history = intern ("minibuffer-history"); |
2340 | staticpro (&Qminibuffer_history); | |
f927c5ae | 2341 | |
406e55df RS |
2342 | Qbuffer_name_history = intern ("buffer-name-history"); |
2343 | staticpro (&Qbuffer_name_history); | |
33d0a17f | 2344 | Fset (Qbuffer_name_history, Qnil); |
406e55df | 2345 | |
5c781212 RS |
2346 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
2347 | staticpro (&Qminibuffer_setup_hook); | |
2348 | ||
177aecf9 KH |
2349 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
2350 | staticpro (&Qminibuffer_exit_hook); | |
2351 | ||
77aa8edf RS |
2352 | Qhistory_length = intern ("history-length"); |
2353 | staticpro (&Qhistory_length); | |
2354 | ||
cee54539 KH |
2355 | Qcurrent_input_method = intern ("current-input-method"); |
2356 | staticpro (&Qcurrent_input_method); | |
2357 | ||
2358 | Qactivate_input_method = intern ("activate-input-method"); | |
2359 | staticpro (&Qactivate_input_method); | |
2360 | ||
eebbfb01 KH |
2361 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2362 | "If this is non-nil, `read-buffer' does its work by calling this function."); | |
2363 | Vread_buffer_function = Qnil; | |
2364 | ||
5c781212 RS |
2365 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2366 | "Normal hook run just after entry to minibuffer."); | |
2367 | Vminibuffer_setup_hook = Qnil; | |
2368 | ||
177aecf9 KH |
2369 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2370 | "Normal hook run just after exit from minibuffer."); | |
2371 | Vminibuffer_exit_hook = Qnil; | |
2372 | ||
77aa8edf RS |
2373 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2374 | "*Maximum length for history lists before truncation takes place.\n\ | |
2375 | A number means that length; t means infinite. Truncation takes place\n\ | |
2376 | just after a new element is inserted. Setting the history-length\n\ | |
2377 | property of a history variable overrides this default."); | |
2378 | XSETFASTINT (Vhistory_length, 30); | |
2379 | ||
739cc391 | 2380 | DEFVAR_LISP ("completion-auto-help", &Vcompletion_auto_help, |
f927c5ae | 2381 | "*Non-nil means automatically provide help for invalid completion input."); |
739cc391 | 2382 | Vcompletion_auto_help = Qt; |
f927c5ae JB |
2383 | |
2384 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, | |
2385 | "Non-nil means don't consider case significant in completion."); | |
2386 | completion_ignore_case = 0; | |
2387 | ||
2388 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, | |
2389 | "*Non-nil means to allow minibuffer commands while in the minibuffer.\n\ | |
7e3e3ad1 | 2390 | This variable makes a difference whenever the minibuffer window is active."); |
f927c5ae JB |
2391 | enable_recursive_minibuffers = 0; |
2392 | ||
2393 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, | |
2394 | "Alist or obarray used for completion in the minibuffer.\n\ | |
2395 | This becomes the ALIST argument to `try-completion' and `all-completion'.\n\ | |
2396 | \n\ | |
2397 | The value may alternatively be a function, which is given three arguments:\n\ | |
2398 | STRING, the current buffer contents;\n\ | |
2399 | PREDICATE, the predicate for filtering possible matches;\n\ | |
2400 | CODE, which says what kind of things to do.\n\ | |
2401 | CODE can be nil, t or `lambda'.\n\ | |
2402 | nil means to return the best completion of STRING, or nil if there is none.\n\ | |
2403 | t means to return a list of all possible completions of STRING.\n\ | |
2404 | `lambda' means to return t if STRING is a valid completion as it stands."); | |
2405 | Vminibuffer_completion_table = Qnil; | |
2406 | ||
2407 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, | |
2408 | "Within call to `completing-read', this holds the PREDICATE argument."); | |
2409 | Vminibuffer_completion_predicate = Qnil; | |
2410 | ||
2411 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, | |
2412 | "Non-nil => demand confirmation of completion before exiting minibuffer."); | |
2413 | Vminibuffer_completion_confirm = Qnil; | |
2414 | ||
ccf330a6 RS |
2415 | DEFVAR_LISP ("minibuffer-completing-file-name", |
2416 | &Vminibuffer_completing_file_name, | |
2417 | "Non-nil means completing file names."); | |
2418 | Vminibuffer_completing_file_name = Qnil; | |
2419 | ||
f927c5ae JB |
2420 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, |
2421 | "Value that `help-form' takes on inside the minibuffer."); | |
2422 | Vminibuffer_help_form = Qnil; | |
2423 | ||
770970cb RS |
2424 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2425 | "History list symbol to add minibuffer values to.\n\ | |
2fa2413b RS |
2426 | Each string of minibuffer input, as it appears on exit from the minibuffer,\n\ |
2427 | is added with\n\ | |
770970cb RS |
2428 | (set minibuffer-history-variable\n\ |
2429 | (cons STRING (symbol-value minibuffer-history-variable)))"); | |
5a866662 | 2430 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb RS |
2431 | |
2432 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, | |
2433 | "Current position of redoing in the history list."); | |
2434 | Vminibuffer_history_position = Qnil; | |
2435 | ||
6a9ee000 | 2436 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
e98bcc1a RS |
2437 | "*Non-nil means entering the minibuffer raises the minibuffer's frame.\n\ |
2438 | Some uses of the echo area also raise that frame (since they use it too)."); | |
6a9ee000 RS |
2439 | minibuffer_auto_raise = 0; |
2440 | ||
42006772 RS |
2441 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2442 | "List of regexps that should restrict possible completions."); | |
2443 | Vcompletion_regexp_list = Qnil; | |
2444 | ||
c3421833 RS |
2445 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
2446 | &minibuffer_allow_text_properties, | |
e9cccb71 | 2447 | "Non-nil means `read-from-minibuffer' should not discard text properties.\n\ |
c3421833 RS |
2448 | This also affects `read-string', but it does not affect `read-minibuffer',\n\ |
2449 | `read-no-blanks-input', or any of the functions that do minibuffer input\n\ | |
2bfbde2b | 2450 | with completion; they always discard text properties."); |
c3421833 RS |
2451 | minibuffer_allow_text_properties = 0; |
2452 | ||
cc64f5c9 MB |
2453 | DEFVAR_LISP ("minibuffer-prompt-properties", &Vminibuffer_prompt_properties, |
2454 | "Text properties that are added to minibuffer prompts.\n\ | |
2455 | These are in addition to the basic `field' property, and stickiness\n\ | |
2456 | properties."); | |
2457 | /* We use `intern' here instead of Qread_only to avoid | |
2458 | initialization-order problems. */ | |
2459 | Vminibuffer_prompt_properties | |
2460 | = Fcons (intern ("read-only"), Fcons (Qt, Qnil)); | |
2461 | ||
68313ed8 | 2462 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2463 | defsubr (&Sread_from_minibuffer); |
2464 | defsubr (&Seval_minibuffer); | |
2465 | defsubr (&Sread_minibuffer); | |
2466 | defsubr (&Sread_string); | |
2467 | defsubr (&Sread_command); | |
2468 | defsubr (&Sread_variable); | |
2469 | defsubr (&Sread_buffer); | |
2470 | defsubr (&Sread_no_blanks_input); | |
2471 | defsubr (&Sminibuffer_depth); | |
37e9a934 | 2472 | defsubr (&Sminibuffer_prompt); |
f927c5ae JB |
2473 | |
2474 | defsubr (&Stry_completion); | |
2475 | defsubr (&Sall_completions); | |
2476 | defsubr (&Scompleting_read); | |
2477 | defsubr (&Sminibuffer_complete); | |
2478 | defsubr (&Sminibuffer_complete_word); | |
2479 | defsubr (&Sminibuffer_complete_and_exit); | |
2480 | defsubr (&Sdisplay_completion_list); | |
2481 | defsubr (&Sminibuffer_completion_help); | |
2482 | ||
2483 | defsubr (&Sself_insert_and_exit); | |
2484 | defsubr (&Sexit_minibuffer); | |
2485 | ||
2d955a50 | 2486 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2487 | } |
2488 | ||
9d815fd9 | 2489 | void |
f927c5ae JB |
2490 | keys_of_minibuf () |
2491 | { | |
2492 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2493 | "abort-recursive-edit"); | |
2494 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2495 | "exit-minibuffer"); | |
2496 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2497 | "exit-minibuffer"); | |
2498 | ||
2499 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('g'), | |
2500 | "abort-recursive-edit"); | |
2501 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('m'), | |
2502 | "exit-minibuffer"); | |
2503 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('j'), | |
2504 | "exit-minibuffer"); | |
2505 | ||
2506 | initial_define_key (Vminibuffer_local_ns_map, ' ', | |
2507 | "exit-minibuffer"); | |
2508 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2509 | "exit-minibuffer"); | |
2510 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2511 | "self-insert-and-exit"); | |
2512 | ||
2513 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('g'), | |
2514 | "abort-recursive-edit"); | |
2515 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('m'), | |
2516 | "exit-minibuffer"); | |
2517 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('j'), | |
2518 | "exit-minibuffer"); | |
2519 | ||
2520 | initial_define_key (Vminibuffer_local_completion_map, '\t', | |
2521 | "minibuffer-complete"); | |
2522 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2523 | "minibuffer-complete-word"); | |
2524 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2525 | "minibuffer-completion-help"); | |
2526 | ||
2527 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('g'), | |
2528 | "abort-recursive-edit"); | |
2529 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), | |
2530 | "minibuffer-complete-and-exit"); | |
2531 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2532 | "minibuffer-complete-and-exit"); | |
2533 | initial_define_key (Vminibuffer_local_must_match_map, '\t', | |
2534 | "minibuffer-complete"); | |
2535 | initial_define_key (Vminibuffer_local_must_match_map, ' ', | |
2536 | "minibuffer-complete-word"); | |
2537 | initial_define_key (Vminibuffer_local_must_match_map, '?', | |
2538 | "minibuffer-completion-help"); | |
2539 | } |