Commit | Line | Data |
---|---|---|
f927c5ae | 1 | /* Minibuffer input and completion. |
0c80756e | 2 | Copyright (C) 1985, 1986, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 |
6801b300 | 3 | Free Software Foundation, Inc. |
f927c5ae JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ffd56f97 | 9 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
f927c5ae JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
3f708f4c | 24 | #include <stdio.h> |
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" | |
34 | ||
35 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
36 | ||
a4e71d81 KH |
37 | extern int quit_char; |
38 | ||
f927c5ae | 39 | /* List of buffers for use as minibuffers. |
4d04c1f1 KH |
40 | The first element of the list is used for the outermost minibuffer |
41 | invocation, the next element is used for a recursive minibuffer | |
42 | invocation, etc. The list is extended at the end as deeper | |
43 | minibuffer recursions are encountered. */ | |
279cf52c | 44 | |
f927c5ae JB |
45 | Lisp_Object Vminibuffer_list; |
46 | ||
4d04c1f1 | 47 | /* Data to remember during recursive minibuffer invocations */ |
279cf52c | 48 | |
4d04c1f1 | 49 | Lisp_Object minibuf_save_list; |
f927c5ae JB |
50 | |
51 | /* Depth in minibuffer invocations. */ | |
279cf52c | 52 | |
f927c5ae JB |
53 | int minibuf_level; |
54 | ||
77aa8edf | 55 | /* Nonzero means display completion help for invalid input. */ |
279cf52c | 56 | |
739cc391 | 57 | Lisp_Object Vcompletion_auto_help; |
f927c5ae | 58 | |
77aa8edf | 59 | /* The maximum length of a minibuffer history. */ |
279cf52c | 60 | |
77aa8edf RS |
61 | Lisp_Object Qhistory_length, Vhistory_length; |
62 | ||
b278606c | 63 | /* Fread_minibuffer leaves the input here as a string. */ |
279cf52c | 64 | |
f927c5ae JB |
65 | Lisp_Object last_minibuf_string; |
66 | ||
67 | /* Nonzero means let functions called when within a minibuffer | |
68 | invoke recursive minibuffers (to read arguments, or whatever) */ | |
279cf52c | 69 | |
f927c5ae JB |
70 | int enable_recursive_minibuffers; |
71 | ||
c3421833 RS |
72 | /* Nonzero means don't ignore text properties |
73 | in Fread_from_minibuffer. */ | |
279cf52c | 74 | |
c3421833 RS |
75 | int minibuffer_allow_text_properties; |
76 | ||
f927c5ae JB |
77 | /* help-form is bound to this while in the minibuffer. */ |
78 | ||
79 | Lisp_Object Vminibuffer_help_form; | |
80 | ||
770970cb RS |
81 | /* Variable which is the history list to add minibuffer values to. */ |
82 | ||
83 | Lisp_Object Vminibuffer_history_variable; | |
84 | ||
85 | /* Current position in the history list (adjusted by M-n and M-p). */ | |
86 | ||
87 | Lisp_Object Vminibuffer_history_position; | |
88 | ||
406e55df | 89 | Lisp_Object Qminibuffer_history, Qbuffer_name_history; |
770970cb | 90 | |
719b4a40 RS |
91 | Lisp_Object Qread_file_name_internal; |
92 | ||
177aecf9 | 93 | /* Normal hooks for entry to and exit from minibuffer. */ |
5c781212 RS |
94 | |
95 | Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook; | |
177aecf9 | 96 | Lisp_Object Qminibuffer_exit_hook, Vminibuffer_exit_hook; |
5c781212 | 97 | |
eebbfb01 KH |
98 | /* Function to call to read a buffer name. */ |
99 | Lisp_Object Vread_buffer_function; | |
100 | ||
f927c5ae JB |
101 | /* Nonzero means completion ignores case. */ |
102 | ||
103 | int completion_ignore_case; | |
104 | ||
42006772 RS |
105 | /* List of regexps that should restrict possible completions. */ |
106 | ||
107 | Lisp_Object Vcompletion_regexp_list; | |
108 | ||
6a9ee000 RS |
109 | /* Nonzero means raise the minibuffer frame when the minibuffer |
110 | is entered. */ | |
111 | ||
112 | int minibuffer_auto_raise; | |
113 | ||
f927c5ae JB |
114 | /* If last completion attempt reported "Complete but not unique" |
115 | then this is the string completed then; otherwise this is nil. */ | |
116 | ||
117 | static Lisp_Object last_exact_completion; | |
118 | ||
2cb6da5c RS |
119 | /* Non-nil means it is the window for C-M-v to scroll |
120 | when the minibuffer is selected. */ | |
279cf52c | 121 | |
2cb6da5c | 122 | extern Lisp_Object Vminibuf_scroll_window; |
30e13e56 RS |
123 | |
124 | extern Lisp_Object Voverriding_local_map; | |
cee54539 | 125 | |
5744fa7c RS |
126 | Lisp_Object Quser_variable_p; |
127 | ||
128 | Lisp_Object Qminibuffer_default; | |
129 | ||
cee54539 KH |
130 | Lisp_Object Qcurrent_input_method, Qactivate_input_method; |
131 | ||
5744fa7c | 132 | extern Lisp_Object Qmouse_face; |
279cf52c | 133 | |
8e9968c6 | 134 | extern Lisp_Object Qfield; |
f927c5ae | 135 | \f |
89fdc4a0 KH |
136 | /* Put minibuf on currently selected frame's minibuffer. |
137 | We do this whenever the user starts a new minibuffer | |
138 | or when a minibuffer exits. */ | |
139 | ||
140 | void | |
141 | choose_minibuf_frame () | |
142 | { | |
a4aafc54 GM |
143 | if (FRAMEP (selected_frame) |
144 | && FRAME_LIVE_P (XFRAME (selected_frame)) | |
145 | && !EQ (minibuf_window, XFRAME (selected_frame)->minibuffer_window)) | |
89fdc4a0 | 146 | { |
a4aafc54 GM |
147 | struct frame *sf = XFRAME (selected_frame); |
148 | Lisp_Object buffer; | |
149 | ||
89fdc4a0 KH |
150 | /* I don't think that any frames may validly have a null minibuffer |
151 | window anymore. */ | |
a4aafc54 | 152 | if (NILP (sf->minibuffer_window)) |
89fdc4a0 KH |
153 | abort (); |
154 | ||
a4aafc54 GM |
155 | /* Under X, we come here with minibuf_window being the |
156 | minibuffer window of the unused termcap window created in | |
157 | init_window_once. That window doesn't have a buffer. */ | |
158 | buffer = XWINDOW (minibuf_window)->buffer; | |
159 | if (BUFFERP (buffer)) | |
160 | Fset_window_buffer (sf->minibuffer_window, buffer); | |
161 | minibuf_window = sf->minibuffer_window; | |
89fdc4a0 | 162 | } |
914860c2 RS |
163 | |
164 | /* Make sure no other frame has a minibuffer as its selected window, | |
165 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
166 | confusing. Only allow the selected frame to do this, |
167 | and that only if the minibuffer is active. */ | |
914860c2 RS |
168 | { |
169 | Lisp_Object tail, frame; | |
170 | ||
171 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 | 172 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
a4aafc54 | 173 | && !(EQ (frame, selected_frame) |
07d402c8 | 174 | && minibuf_level > 0)) |
914860c2 RS |
175 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
176 | } | |
89fdc4a0 | 177 | } |
68313ed8 | 178 | |
0c94f256 RS |
179 | Lisp_Object |
180 | choose_minibuf_frame_1 (ignore) | |
181 | Lisp_Object ignore; | |
182 | { | |
183 | choose_minibuf_frame (); | |
184 | return Qnil; | |
185 | } | |
186 | ||
68313ed8 RS |
187 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
188 | Sset_minibuffer_window, 1, 1, 0, | |
189 | "Specify which minibuffer window to use for the minibuffer.\n\ | |
190 | This effects where the minibuffer is displayed if you put text in it\n\ | |
191 | without invoking the usual minibuffer commands.") | |
192 | (window) | |
193 | Lisp_Object window; | |
194 | { | |
195 | CHECK_WINDOW (window, 1); | |
196 | if (! MINI_WINDOW_P (XWINDOW (window))) | |
197 | error ("Window is not a minibuffer window"); | |
198 | ||
199 | minibuf_window = window; | |
200 | ||
201 | return window; | |
202 | } | |
203 | ||
89fdc4a0 | 204 | \f |
f927c5ae JB |
205 | /* Actual minibuffer invocation. */ |
206 | ||
af2b7cd5 RS |
207 | static Lisp_Object read_minibuf_unwind P_ ((Lisp_Object)); |
208 | static Lisp_Object read_minibuf P_ ((Lisp_Object, Lisp_Object, | |
209 | Lisp_Object, Lisp_Object, | |
210 | int, Lisp_Object, | |
211 | Lisp_Object, Lisp_Object, | |
212 | int, int)); | |
edfef199 GM |
213 | static Lisp_Object read_minibuf_noninteractive P_ ((Lisp_Object, Lisp_Object, |
214 | Lisp_Object, Lisp_Object, | |
215 | int, Lisp_Object, | |
216 | Lisp_Object, Lisp_Object, | |
217 | int, int)); | |
218 | static Lisp_Object string_to_object P_ ((Lisp_Object, Lisp_Object)); | |
219 | ||
220 | ||
221 | /* Read a Lisp object from VAL and return it. If VAL is an empty | |
222 | string, and DEFALT is a string, read from DEFALT instead of VAL. */ | |
223 | ||
224 | static Lisp_Object | |
225 | string_to_object (val, defalt) | |
226 | Lisp_Object val, defalt; | |
227 | { | |
228 | struct gcpro gcpro1, gcpro2; | |
229 | Lisp_Object expr_and_pos; | |
230 | int pos; | |
231 | ||
232 | GCPRO2 (val, defalt); | |
233 | ||
234 | if (STRINGP (val) && XSTRING (val)->size == 0 | |
235 | && STRINGP (defalt)) | |
236 | val = defalt; | |
237 | ||
238 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); | |
239 | pos = XINT (Fcdr (expr_and_pos)); | |
240 | if (pos != XSTRING (val)->size) | |
241 | { | |
242 | /* Ignore trailing whitespace; any other trailing junk | |
243 | is an error. */ | |
244 | int i; | |
245 | pos = string_char_to_byte (val, pos); | |
246 | for (i = pos; i < STRING_BYTES (XSTRING (val)); i++) | |
247 | { | |
248 | int c = XSTRING (val)->data[i]; | |
249 | if (c != ' ' && c != '\t' && c != '\n') | |
250 | error ("Trailing garbage following expression"); | |
251 | } | |
252 | } | |
253 | ||
254 | val = Fcar (expr_and_pos); | |
255 | RETURN_UNGCPRO (val); | |
256 | } | |
257 | ||
258 | ||
259 | /* Like read_minibuf but reading from stdin. This function is called | |
260 | from read_minibuf to do the job if noninteractive. */ | |
261 | ||
262 | static Lisp_Object | |
263 | read_minibuf_noninteractive (map, initial, prompt, backup_n, expflag, | |
264 | histvar, histpos, defalt, allow_props, | |
265 | inherit_input_method) | |
266 | Lisp_Object map; | |
267 | Lisp_Object initial; | |
268 | Lisp_Object prompt; | |
269 | Lisp_Object backup_n; | |
270 | int expflag; | |
271 | Lisp_Object histvar; | |
272 | Lisp_Object histpos; | |
273 | Lisp_Object defalt; | |
274 | int allow_props; | |
275 | int inherit_input_method; | |
276 | { | |
277 | int size, len; | |
278 | char *line, *s; | |
edfef199 GM |
279 | Lisp_Object val; |
280 | ||
281 | fprintf (stdout, "%s", XSTRING (prompt)->data); | |
282 | fflush (stdout); | |
283 | ||
6bbd7a29 | 284 | val = Qnil; |
edfef199 GM |
285 | size = 100; |
286 | len = 0; | |
287 | line = (char *) xmalloc (size * sizeof *line); | |
288 | while ((s = fgets (line + len, size - len, stdin)) != NULL | |
289 | && (len = strlen (line), | |
290 | len == size - 1 && line[len - 1] != '\n')) | |
291 | { | |
292 | size *= 2; | |
293 | line = (char *) xrealloc (line, size); | |
294 | } | |
295 | ||
296 | if (s) | |
297 | { | |
298 | len = strlen (line); | |
299 | ||
300 | if (len > 0 && line[len - 1] == '\n') | |
301 | line[--len] = '\0'; | |
302 | ||
303 | val = build_string (line); | |
304 | xfree (line); | |
305 | } | |
306 | else | |
307 | { | |
308 | xfree (line); | |
309 | error ("Error reading from stdin"); | |
310 | } | |
311 | ||
312 | /* If Lisp form desired instead of string, parse it. */ | |
313 | if (expflag) | |
314 | val = string_to_object (val, defalt); | |
315 | ||
316 | return val; | |
317 | } | |
318 | ||
f927c5ae | 319 | |
770970cb | 320 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
a9c26562 | 321 | (a string), putting point minus BACKUP_N bytes from the end of INITIAL, |
770970cb | 322 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 323 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
324 | |
325 | Normally return the result as a string (the text that was read), | |
3ab14176 | 326 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
327 | If HISTVAR is given, save the value read on that history only if it doesn't |
328 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 329 | the list as the string that was read. |
770970cb | 330 | |
c3421833 RS |
331 | DEFALT specifies te default value for the sake of history commands. |
332 | ||
cee54539 KH |
333 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
334 | ||
335 | if INHERIT_INPUT_METHOD is nonzeor, the minibuffer inherit the | |
336 | current input method. */ | |
e5d4686b RS |
337 | |
338 | static Lisp_Object | |
339 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 340 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
341 | Lisp_Object map; |
342 | Lisp_Object initial; | |
343 | Lisp_Object prompt; | |
5061d9c3 | 344 | Lisp_Object backup_n; |
f927c5ae | 345 | int expflag; |
770970cb RS |
346 | Lisp_Object histvar; |
347 | Lisp_Object histpos; | |
e5d4686b | 348 | Lisp_Object defalt; |
af2b7cd5 | 349 | int allow_props; |
cee54539 | 350 | int inherit_input_method; |
f927c5ae | 351 | { |
00a34088 | 352 | Lisp_Object val; |
f927c5ae | 353 | int count = specpdl_ptr - specpdl; |
cee54539 KH |
354 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
355 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 356 | Lisp_Object enable_multibyte; |
13c67cc6 | 357 | extern Lisp_Object Qread_only, Qfront_sticky; |
fbd1209a | 358 | extern Lisp_Object Qrear_nonsticky; |
00a34088 | 359 | |
e5d4686b RS |
360 | specbind (Qminibuffer_default, defalt); |
361 | ||
08f7d623 | 362 | single_kboard_state (); |
e5baa1a7 GM |
363 | #ifdef HAVE_X_WINDOWS |
364 | if (display_busy_cursor_p) | |
365 | cancel_busy_cursor (); | |
366 | #endif | |
718d3251 | 367 | |
00a34088 | 368 | val = Qnil; |
57ceaa8a | 369 | ambient_dir = current_buffer->directory; |
cee54539 | 370 | input_method = Qnil; |
c75000c7 | 371 | enable_multibyte = Qnil; |
57ceaa8a | 372 | |
00a34088 RS |
373 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
374 | store them away before we can GC. Don't need to protect | |
375 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 376 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 377 | |
7510b296 | 378 | if (!STRINGP (prompt)) |
f927c5ae JB |
379 | prompt = build_string (""); |
380 | ||
f927c5ae | 381 | if (!enable_recursive_minibuffers |
be15a518 RS |
382 | && minibuf_level > 0) |
383 | { | |
384 | if (EQ (selected_window, minibuf_window)) | |
385 | error ("Command attempted to use minibuffer while in minibuffer"); | |
386 | else | |
387 | /* If we're in another window, cancel the minibuffer that's active. */ | |
388 | Fthrow (Qexit, | |
389 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
390 | } | |
f927c5ae | 391 | |
edfef199 GM |
392 | if (noninteractive) |
393 | return read_minibuf_noninteractive (map, initial, prompt, backup_n, | |
394 | expflag, histvar, histpos, defalt, | |
395 | allow_props, inherit_input_method); | |
396 | ||
748dc60a | 397 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 398 | |
c5b6b680 RS |
399 | choose_minibuf_frame (); |
400 | ||
0c94f256 RS |
401 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
402 | ||
f927c5ae | 403 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
404 | Fcurrent_window_configuration (Qnil)); |
405 | ||
ff11dfa1 JB |
406 | /* If the minibuffer window is on a different frame, save that |
407 | frame's configuration too. */ | |
75f00e72 | 408 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
a4aafc54 | 409 | if (!EQ (mini_frame, selected_frame)) |
5061d9c3 RS |
410 | record_unwind_protect (Fset_window_configuration, |
411 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
412 | |
413 | /* If the minibuffer is on an iconified or invisible frame, | |
414 | make it visible now. */ | |
415 | Fmake_frame_visible (mini_frame); | |
416 | ||
6a9ee000 RS |
417 | if (minibuffer_auto_raise) |
418 | Fraise_frame (mini_frame); | |
f927c5ae | 419 | |
748dc60a RS |
420 | /* We have to do this after saving the window configuration |
421 | since that is what restores the current buffer. */ | |
422 | ||
423 | /* Arrange to restore a number of minibuffer-related variables. | |
424 | We could bind each variable separately, but that would use lots of | |
425 | specpdl slots. */ | |
426 | minibuf_save_list | |
427 | = Fcons (Voverriding_local_map, | |
428 | Fcons (minibuf_window, minibuf_save_list)); | |
429 | minibuf_save_list | |
430 | = Fcons (minibuf_prompt, | |
431 | Fcons (make_number (minibuf_prompt_width), | |
432 | Fcons (Vhelp_form, | |
433 | Fcons (Vcurrent_prefix_arg, | |
434 | Fcons (Vminibuffer_history_position, | |
435 | Fcons (Vminibuffer_history_variable, | |
436 | minibuf_save_list)))))); | |
437 | ||
438 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
439 | minibuf_level++; | |
440 | ||
441 | /* Now that we can restore all those variables, start changing them. */ | |
442 | ||
1e3f16d5 | 443 | minibuf_prompt_width = 0; |
748dc60a RS |
444 | minibuf_prompt = Fcopy_sequence (prompt); |
445 | Vminibuffer_history_position = histpos; | |
446 | Vminibuffer_history_variable = histvar; | |
447 | Vhelp_form = Vminibuffer_help_form; | |
448 | ||
cee54539 | 449 | if (inherit_input_method) |
c75000c7 RS |
450 | { |
451 | /* `current-input-method' is buffer local. So, remeber it in | |
452 | INPUT_METHOD before changing the current buffer. */ | |
453 | input_method = Fsymbol_value (Qcurrent_input_method); | |
454 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
455 | } | |
cee54539 | 456 | |
748dc60a RS |
457 | /* Switch to the minibuffer. */ |
458 | ||
4f69d8f6 RS |
459 | minibuffer = get_minibuffer (minibuf_level); |
460 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
461 | |
462 | /* The current buffer's default directory is usually the right thing | |
463 | for our minibuffer here. However, if you're typing a command at | |
464 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
465 | the current_buffer, so reset_buffer leaves buf's default | |
466 | directory unchanged. This is a bummer when you've just started | |
467 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
468 | you think of something better to do? Find another buffer with a | |
469 | better directory, and use that one instead. */ | |
748dc60a RS |
470 | if (STRINGP (ambient_dir)) |
471 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
472 | else |
473 | { | |
474 | Lisp_Object buf_list; | |
475 | ||
476 | for (buf_list = Vbuffer_alist; | |
477 | CONSP (buf_list); | |
7539e11f | 478 | buf_list = XCDR (buf_list)) |
64a3a3c0 | 479 | { |
1e62748e | 480 | Lisp_Object other_buf; |
64a3a3c0 | 481 | |
7539e11f | 482 | other_buf = XCDR (XCAR (buf_list)); |
7510b296 | 483 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
484 | { |
485 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
486 | break; | |
487 | } | |
488 | } | |
489 | } | |
490 | ||
a4aafc54 GM |
491 | if (!EQ (mini_frame, selected_frame)) |
492 | Fredirect_frame_focus (selected_frame, mini_frame); | |
43bad991 | 493 | |
f927c5ae JB |
494 | Vminibuf_scroll_window = selected_window; |
495 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); | |
f927c5ae | 496 | Fselect_window (minibuf_window); |
5a866662 | 497 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 498 | |
748dc60a RS |
499 | Fmake_local_variable (Qprint_escape_newlines); |
500 | print_escape_newlines = 1; | |
501 | ||
502 | /* Erase the buffer. */ | |
59115a22 RS |
503 | { |
504 | int count1 = specpdl_ptr - specpdl; | |
505 | specbind (Qinhibit_read_only, Qt); | |
506 | Ferase_buffer (); | |
507 | unbind_to (count1, Qnil); | |
508 | } | |
509 | ||
279cf52c GM |
510 | if (!NILP (current_buffer->enable_multibyte_characters) |
511 | && ! STRING_MULTIBYTE (minibuf_prompt)) | |
512 | minibuf_prompt = Fstring_make_multibyte (minibuf_prompt); | |
513 | ||
279cf52c GM |
514 | /* Insert the prompt, record where it ends. */ |
515 | Finsert (1, &minibuf_prompt); | |
279cf52c GM |
516 | if (PT > BEG) |
517 | { | |
fbd1209a | 518 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 519 | Qfront_sticky, Qt, Qnil); |
fbd1209a | 520 | Fput_text_property (make_number (BEG), make_number (PT), |
279cf52c | 521 | Qrear_nonsticky, Qt, Qnil); |
8e9968c6 GM |
522 | Fput_text_property (make_number (BEG), make_number (PT), |
523 | Qfield, Qt, Qnil); | |
fbd1209a RS |
524 | Fput_text_property (make_number (BEG), make_number (PT), |
525 | Qread_only, Qt, Qnil); | |
279cf52c | 526 | } |
1e3f16d5 GM |
527 | |
528 | minibuf_prompt_width = current_column (); | |
279cf52c | 529 | |
094d9789 RS |
530 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
531 | if (inherit_input_method) | |
532 | current_buffer->enable_multibyte_characters = enable_multibyte; | |
533 | ||
748dc60a | 534 | /* Put in the initial input. */ |
56a98455 | 535 | if (!NILP (initial)) |
f927c5ae JB |
536 | { |
537 | Finsert (1, &initial); | |
a9c26562 RS |
538 | if (INTEGERP (backup_n)) |
539 | Fforward_char (backup_n); | |
f927c5ae JB |
540 | } |
541 | ||
39e98b38 | 542 | clear_message (1, 1); |
f927c5ae JB |
543 | current_buffer->keymap = map; |
544 | ||
cee54539 | 545 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 546 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
547 | call1 (Qactivate_input_method, input_method); |
548 | ||
5c781212 RS |
549 | /* Run our hook, but not if it is empty. |
550 | (run-hooks would do nothing if it is empty, | |
748dc60a | 551 | but it's important to save time here in the usual case). */ |
92d3b06e RS |
552 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
553 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
554 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
555 | ||
f927c5ae JB |
556 | recursive_edit_1 (); |
557 | ||
558 | /* If cursor is on the minibuffer line, | |
559 | show the user we have exited by putting it in column 0. */ | |
279cf52c | 560 | if (XWINDOW (minibuf_window)->cursor.vpos >= 0 |
f927c5ae JB |
561 | && !noninteractive) |
562 | { | |
279cf52c GM |
563 | XWINDOW (minibuf_window)->cursor.hpos = 0; |
564 | XWINDOW (minibuf_window)->cursor.x = 0; | |
565 | XWINDOW (minibuf_window)->must_be_updated_p = 1; | |
a4aafc54 | 566 | update_frame (XFRAME (selected_frame), 1, 1); |
337aaf1f GM |
567 | if (rif && rif->flush_display) |
568 | rif->flush_display (XFRAME (XWINDOW (minibuf_window)->frame)); | |
f927c5ae JB |
569 | } |
570 | ||
c3421833 | 571 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 572 | Fset_buffer (minibuffer); |
be95a9b6 DL |
573 | if (allow_props) |
574 | val = Ffield_string (make_number (ZV)); | |
575 | else | |
576 | val = Ffield_string_no_properties (make_number (ZV)); | |
770970cb | 577 | |
b278606c | 578 | /* VAL is the string of minibuffer text. */ |
7019cca7 | 579 | |
b278606c BF |
580 | last_minibuf_string = val; |
581 | ||
3ab14176 | 582 | /* Add the value to the appropriate history list unless it is empty. */ |
9f6131cf | 583 | if (XSTRING (val)->size != 0 |
c6d65724 | 584 | && SYMBOLP (Vminibuffer_history_variable)) |
3ab14176 KH |
585 | { |
586 | /* If the caller wanted to save the value read on a history list, | |
587 | then do so if the value is not already the front of the list. */ | |
588 | Lisp_Object histval; | |
c6d65724 RS |
589 | |
590 | /* If variable is unbound, make it nil. */ | |
591 | if (EQ (XSYMBOL (Vminibuffer_history_variable)->value, Qunbound)) | |
592 | Fset (Vminibuffer_history_variable, Qnil); | |
593 | ||
3ab14176 KH |
594 | histval = Fsymbol_value (Vminibuffer_history_variable); |
595 | ||
596 | /* The value of the history variable must be a cons or nil. Other | |
597 | values are unacceptable. We silently ignore these values. */ | |
598 | if (NILP (histval) | |
9f6131cf RS |
599 | || (CONSP (histval) |
600 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
601 | { |
602 | Lisp_Object length; | |
603 | ||
604 | histval = Fcons (last_minibuf_string, histval); | |
605 | Fset (Vminibuffer_history_variable, histval); | |
606 | ||
607 | /* Truncate if requested. */ | |
608 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
609 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
610 | if (INTEGERP (length)) |
611 | { | |
612 | if (XINT (length) <= 0) | |
613 | Fset (Vminibuffer_history_variable, Qnil); | |
614 | else | |
615 | { | |
616 | Lisp_Object temp; | |
617 | ||
618 | temp = Fnthcdr (Fsub1 (length), histval); | |
619 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
620 | } | |
621 | } | |
77aa8edf | 622 | } |
9f6131cf RS |
623 | } |
624 | ||
625 | /* If Lisp form desired instead of string, parse it. */ | |
626 | if (expflag) | |
edfef199 | 627 | val = string_to_object (val, defalt); |
3ab14176 | 628 | |
00a34088 RS |
629 | /* The appropriate frame will get selected |
630 | in set-window-configuration. */ | |
631 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
632 | } |
633 | ||
634 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
635 | depth = 0 is the lowest allowed argument, and that is the value | |
636 | used for nonrecursive minibuffer invocations */ | |
637 | ||
638 | Lisp_Object | |
639 | get_minibuffer (depth) | |
640 | int depth; | |
641 | { | |
642 | Lisp_Object tail, num, buf; | |
9f6c23bc | 643 | char name[24]; |
f927c5ae JB |
644 | extern Lisp_Object nconc2 (); |
645 | ||
5a866662 | 646 | XSETFASTINT (num, depth); |
f927c5ae | 647 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 648 | if (NILP (tail)) |
f927c5ae JB |
649 | { |
650 | tail = Fcons (Qnil, Qnil); | |
651 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
652 | } | |
653 | buf = Fcar (tail); | |
56a98455 | 654 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
655 | { |
656 | sprintf (name, " *Minibuf-%d*", depth); | |
657 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
658 | |
659 | /* Although the buffer's name starts with a space, undo should be | |
660 | enabled in it. */ | |
661 | Fbuffer_enable_undo (buf); | |
662 | ||
7539e11f | 663 | XCAR (tail) = buf; |
f927c5ae JB |
664 | } |
665 | else | |
5956f71d | 666 | { |
6b3faad8 RS |
667 | int count = specpdl_ptr - specpdl; |
668 | ||
5956f71d | 669 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
670 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
671 | Fset_buffer (buf); | |
672 | Fkill_all_local_variables (); | |
673 | unbind_to (count, Qnil); | |
5956f71d | 674 | } |
64a3a3c0 | 675 | |
f927c5ae JB |
676 | return buf; |
677 | } | |
678 | ||
279cf52c GM |
679 | /* This function is called on exiting minibuffer, whether normally or |
680 | not, and it restores the current window, buffer, etc. */ | |
f927c5ae | 681 | |
9d815fd9 | 682 | static Lisp_Object |
43bad991 JB |
683 | read_minibuf_unwind (data) |
684 | Lisp_Object data; | |
f927c5ae | 685 | { |
c24e1160 | 686 | Lisp_Object old_deactivate_mark; |
59115a22 | 687 | Lisp_Object window; |
c24e1160 | 688 | |
0a1dd1c5 RS |
689 | /* We are exiting the minibuffer one way or the other, |
690 | so run the hook. */ | |
691 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
692 | && !NILP (Vrun_hooks)) | |
060ffec1 | 693 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 694 | |
f927c5ae | 695 | /* If this was a recursive minibuffer, |
59115a22 | 696 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 697 | minibuf_level--; |
f927c5ae | 698 | |
59115a22 | 699 | window = minibuf_window; |
279cf52c GM |
700 | /* To keep things predictable, in case it matters, let's be in the |
701 | minibuffer when we reset the relevant variables. */ | |
59115a22 RS |
702 | Fset_buffer (XWINDOW (window)->buffer); |
703 | ||
704 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
705 | minibuf_prompt = Fcar (minibuf_save_list); |
706 | minibuf_save_list = Fcdr (minibuf_save_list); | |
707 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
708 | minibuf_save_list = Fcdr (minibuf_save_list); | |
709 | Vhelp_form = Fcar (minibuf_save_list); | |
710 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 711 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
712 | minibuf_save_list = Fcdr (minibuf_save_list); |
713 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
714 | minibuf_save_list = Fcdr (minibuf_save_list); | |
715 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
716 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 717 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 718 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
719 | #if 0 |
720 | temp = Fcar (minibuf_save_list); | |
721 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
722 | minibuf_window = temp; | |
723 | #endif | |
30e13e56 | 724 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
725 | |
726 | /* Erase the minibuffer we were using at this level. */ | |
727 | { | |
728 | int count = specpdl_ptr - specpdl; | |
729 | /* Prevent error in erase-buffer. */ | |
730 | specbind (Qinhibit_read_only, Qt); | |
731 | old_deactivate_mark = Vdeactivate_mark; | |
732 | Ferase_buffer (); | |
733 | Vdeactivate_mark = old_deactivate_mark; | |
734 | unbind_to (count, Qnil); | |
735 | } | |
736 | ||
544e358d GM |
737 | /* When we get to the outmost level, make sure we resize the |
738 | mini-window back to its normal size. */ | |
739 | if (minibuf_level == 0) | |
1e3f16d5 | 740 | resize_mini_window (XWINDOW (window), 0); |
544e358d | 741 | |
59115a22 RS |
742 | /* Make sure minibuffer window is erased, not ignored. */ |
743 | windows_or_buffers_changed++; | |
744 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 745 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 | 746 | return Qnil; |
f927c5ae JB |
747 | } |
748 | \f | |
b9d721de JB |
749 | |
750 | /* This comment supplies the doc string for read-from-minibuffer, | |
751 | for make-docfile to see. We cannot put this in the real DEFUN | |
752 | due to limits in the Unix cpp. | |
753 | ||
cee54539 | 754 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
f927c5ae JB |
755 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
756 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string\n\ | |
757 | to be inserted into the minibuffer before reading input.\n\ | |
770970cb | 758 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input\n\ |
18fef111 | 759 | is STRING, but point is placed at position POSITION in the minibuffer.\n\ |
f927c5ae JB |
760 | Third arg KEYMAP is a keymap to use whilst reading;\n\ |
761 | if omitted or nil, the default is `minibuffer-local-map'.\n\ | |
762 | If fourth arg READ is non-nil, then interpret the result as a lisp object\n\ | |
763 | and return that object:\n\ | |
764 | in other words, do `(car (read-from-string INPUT-STRING))'\n\ | |
770970cb RS |
765 | Fifth arg HIST, if non-nil, specifies a history list\n\ |
766 | and optionally the initial position in the list.\n\ | |
767 | It can be a symbol, which is the history list variable to use,\n\ | |
768 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
769 | In that case, HISTVAR is the history list variable to use,\n\ | |
770 | and HISTPOS is the initial position (the position in the list\n\ | |
771 | which INITIAL-CONTENTS corresponds to).\n\ | |
e5d4686b | 772 | Positions are counted starting from 1 at the beginning of the list.\n\ |
b9a86585 RS |
773 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is available\n\ |
774 | for history commands; but `read-from-minibuffer' does NOT return DEFAULT-VALUE\n\ | |
775 | if the user enters empty input! It returns the empty string.\n\ | |
c8c15521 RS |
776 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
777 | the current input method and the setting of enable-multibyte-characters.\n\ | |
19a4cb25 | 778 | If the variable `minibuffer-allow-text-properties' is non-nil,\n\ |
c3421833 | 779 | then the string which is returned includes whatever text properties\n\ |
cee54539 KH |
780 | were present in the minibuffer. Otherwise the value has no text properties.") |
781 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
782 | */ | |
b9d721de | 783 | |
cee54539 | 784 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
b9d721de | 785 | 0 /* See immediately above */) |
cee54539 | 786 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) |
e5d4686b | 787 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 788 | Lisp_Object inherit_input_method; |
f927c5ae JB |
789 | { |
790 | int pos = 0; | |
e5d4686b | 791 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
792 | struct gcpro gcpro1; |
793 | ||
770970cb | 794 | position = Qnil; |
f927c5ae JB |
795 | |
796 | CHECK_STRING (prompt, 0); | |
68e5a8a2 | 797 | if (!NILP (initial_contents)) |
f927c5ae | 798 | { |
7510b296 | 799 | if (CONSP (initial_contents)) |
770970cb | 800 | { |
68e5a8a2 RS |
801 | position = Fcdr (initial_contents); |
802 | initial_contents = Fcar (initial_contents); | |
770970cb | 803 | } |
68e5a8a2 | 804 | CHECK_STRING (initial_contents, 1); |
56a98455 | 805 | if (!NILP (position)) |
f927c5ae JB |
806 | { |
807 | CHECK_NUMBER (position, 0); | |
808 | /* Convert to distance from end of input. */ | |
18fef111 RS |
809 | if (XINT (position) < 1) |
810 | /* A number too small means the beginning of the string. */ | |
811 | pos = - XSTRING (initial_contents)->size; | |
812 | else | |
813 | pos = XINT (position) - 1 - XSTRING (initial_contents)->size; | |
f927c5ae JB |
814 | } |
815 | } | |
816 | ||
56a98455 | 817 | if (NILP (keymap)) |
f927c5ae JB |
818 | keymap = Vminibuffer_local_map; |
819 | else | |
b7df898e | 820 | keymap = get_keymap (keymap); |
770970cb | 821 | |
7510b296 | 822 | if (SYMBOLP (hist)) |
770970cb RS |
823 | { |
824 | histvar = hist; | |
825 | histpos = Qnil; | |
826 | } | |
827 | else | |
828 | { | |
829 | histvar = Fcar_safe (hist); | |
830 | histpos = Fcdr_safe (hist); | |
831 | } | |
832 | if (NILP (histvar)) | |
833 | histvar = Qminibuffer_history; | |
834 | if (NILP (histpos)) | |
5a866662 | 835 | XSETFASTINT (histpos, 0); |
770970cb | 836 | |
1d8d92f4 | 837 | GCPRO1 (default_value); |
e5d4686b RS |
838 | val = read_minibuf (keymap, initial_contents, prompt, |
839 | make_number (pos), !NILP (read), | |
c3421833 | 840 | histvar, histpos, default_value, |
cee54539 KH |
841 | minibuffer_allow_text_properties, |
842 | !NILP (inherit_input_method)); | |
1d8d92f4 | 843 | UNGCPRO; |
e5d4686b | 844 | return val; |
f927c5ae JB |
845 | } |
846 | ||
847 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
848 | "Return a Lisp object read using the minibuffer.\n\ | |
849 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
850 | is a string to insert in the minibuffer before reading.") | |
851 | (prompt, initial_contents) | |
852 | Lisp_Object prompt, initial_contents; | |
853 | { | |
854 | CHECK_STRING (prompt, 0); | |
56a98455 | 855 | if (!NILP (initial_contents)) |
a1b4b084 | 856 | CHECK_STRING (initial_contents, 1); |
770970cb | 857 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 858 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 859 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
860 | } |
861 | ||
862 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
863 | "Return value of Lisp expression 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 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
870 | } | |
871 | ||
872 | /* Functions that use the minibuffer to read various things. */ | |
873 | ||
cee54539 | 874 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
f927c5ae | 875 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
80896ab4 RS |
876 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading.\n\ |
877 | The third arg HISTORY, if non-nil, specifies a history list\n\ | |
878 | and optionally the initial position in the list.\n\ | |
cee54539 | 879 | See `read-from-minibuffer' for details of HISTORY argument.\n\ |
19a4cb25 SE |
880 | Fourth arg DEFAULT-VALUE is the default value. If non-nil, it is used\n\ |
881 | for history commands, and as the value to return if the user enters\n\ | |
882 | the empty string.\n\ | |
883 | Fifth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ | |
c8c15521 | 884 | the current input method and the setting of enable-multibyte-characters.") |
cee54539 | 885 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 886 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 887 | Lisp_Object inherit_input_method; |
f927c5ae | 888 | { |
b9a86585 RS |
889 | Lisp_Object val; |
890 | val = Fread_from_minibuffer (prompt, initial_input, Qnil, | |
891 | Qnil, history, default_value, | |
892 | inherit_input_method); | |
893 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (default_value)) | |
894 | val = default_value; | |
895 | return val; | |
f927c5ae JB |
896 | } |
897 | ||
cee54539 | 898 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
c923ccc9 RS |
899 | "Read a string from the terminal, not allowing blanks.\n\ |
900 | Prompt with PROMPT, and provide INITIAL as an initial value of the input string.\n\ | |
c8c15521 RS |
901 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
902 | the current input method and the setting of enable-multibyte-characters.") | |
c923ccc9 RS |
903 | (prompt, initial, inherit_input_method) |
904 | Lisp_Object prompt, initial, inherit_input_method; | |
f927c5ae JB |
905 | { |
906 | CHECK_STRING (prompt, 0); | |
c923ccc9 RS |
907 | if (! NILP (initial)) |
908 | CHECK_STRING (initial, 1); | |
f927c5ae | 909 | |
c923ccc9 | 910 | return read_minibuf (Vminibuffer_local_ns_map, initial, prompt, Qnil, |
cee54539 KH |
911 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
912 | !NILP (inherit_input_method)); | |
f927c5ae JB |
913 | } |
914 | ||
e5d4686b RS |
915 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
916 | "Read the name of a command and return as a symbol.\n\ | |
917 | Prompts with PROMPT. By default, return DEFAULT-VALUE.") | |
918 | (prompt, default_value) | |
919 | Lisp_Object prompt, default_value; | |
f927c5ae | 920 | { |
7c8d9931 RS |
921 | Lisp_Object name, default_string; |
922 | ||
923 | if (NILP (default_value)) | |
924 | default_string = Qnil; | |
925 | else if (SYMBOLP (default_value)) | |
6dd05c14 | 926 | XSETSTRING (default_string, XSYMBOL (default_value)->name); |
7c8d9931 RS |
927 | else |
928 | default_string = default_value; | |
929 | ||
930 | name = Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, | |
931 | Qnil, Qnil, default_string, Qnil); | |
932 | if (NILP (name)) | |
933 | return name; | |
934 | return Fintern (name, Qnil); | |
f927c5ae JB |
935 | } |
936 | ||
937 | #ifdef NOTDEF | |
938 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
939 | "One arg PROMPT, a string. Read the name of a function and return as a symbol.\n\ | |
940 | Prompts with PROMPT.") | |
941 | (prompt) | |
942 | Lisp_Object prompt; | |
943 | { | |
cee54539 | 944 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
945 | Qnil); |
946 | } | |
947 | #endif /* NOTDEF */ | |
948 | ||
e5d4686b RS |
949 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
950 | "Read the name of a user variable and return it as a symbol.\n\ | |
951 | Prompts with PROMPT. By default, return DEFAULT-VALUE.\n\ | |
f927c5ae | 952 | A user variable is one whose documentation starts with a `*' character.") |
e5d4686b RS |
953 | (prompt, default_value) |
954 | Lisp_Object prompt, default_value; | |
f927c5ae | 955 | { |
7c8d9931 RS |
956 | Lisp_Object name, default_string; |
957 | ||
958 | if (NILP (default_value)) | |
959 | default_string = Qnil; | |
960 | else if (SYMBOLP (default_value)) | |
6dd05c14 | 961 | XSETSTRING (default_string, XSYMBOL (default_value)->name); |
7c8d9931 RS |
962 | else |
963 | default_string = default_value; | |
964 | ||
965 | name = Fcompleting_read (prompt, Vobarray, | |
966 | Quser_variable_p, Qt, | |
967 | Qnil, Qnil, default_string, Qnil); | |
968 | if (NILP (name)) | |
969 | return name; | |
970 | return Fintern (name, Qnil); | |
f927c5ae JB |
971 | } |
972 | ||
973 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
974 | "One arg PROMPT, a string. Read the name of a buffer and return as a string.\n\ | |
975 | Prompts with PROMPT.\n\ | |
e5d4686b | 976 | Optional second arg DEF is value to return if user enters an empty line.\n\ |
f927c5ae JB |
977 | If optional third arg REQUIRE-MATCH is non-nil, only existing buffer names are allowed.") |
978 | (prompt, def, require_match) | |
979 | Lisp_Object prompt, def, require_match; | |
980 | { | |
eebbfb01 KH |
981 | Lisp_Object args[4]; |
982 | ||
7510b296 | 983 | if (BUFFERP (def)) |
f927c5ae | 984 | def = XBUFFER (def)->name; |
eebbfb01 KH |
985 | |
986 | if (NILP (Vread_buffer_function)) | |
987 | { | |
988 | if (!NILP (def)) | |
989 | { | |
990 | args[0] = build_string ("%s(default %s) "); | |
991 | args[1] = prompt; | |
992 | args[2] = def; | |
993 | prompt = Fformat (3, args); | |
994 | } | |
995 | ||
996 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
406e55df RS |
997 | require_match, Qnil, Qbuffer_name_history, |
998 | def, Qnil); | |
eebbfb01 KH |
999 | } |
1000 | else | |
f927c5ae | 1001 | { |
eebbfb01 | 1002 | args[0] = Vread_buffer_function; |
f927c5ae JB |
1003 | args[1] = prompt; |
1004 | args[2] = def; | |
eebbfb01 KH |
1005 | args[3] = require_match; |
1006 | return Ffuncall(4, args); | |
f927c5ae | 1007 | } |
f927c5ae JB |
1008 | } |
1009 | \f | |
ec067ec7 RS |
1010 | static Lisp_Object |
1011 | minibuf_conform_representation (string, basis) | |
1012 | Lisp_Object string, basis; | |
1013 | { | |
1014 | if (STRING_MULTIBYTE (string) == STRING_MULTIBYTE (basis)) | |
1015 | return string; | |
1016 | ||
1017 | if (STRING_MULTIBYTE (string)) | |
1018 | return Fstring_make_unibyte (string); | |
1019 | else | |
1020 | return Fstring_make_multibyte (string); | |
1021 | } | |
1022 | ||
f927c5ae JB |
1023 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, |
1024 | "Return common substring of all completions of STRING in ALIST.\n\ | |
1025 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
1026 | All that match are compared together; the longest initial sequence\n\ | |
1027 | common to all matches is returned as a string.\n\ | |
1028 | If there is no match at all, nil is returned.\n\ | |
7e4639db | 1029 | For a unique match which is exact, t is returned.\n\ |
f927c5ae JB |
1030 | \n\ |
1031 | ALIST can be an obarray instead of an alist.\n\ | |
1032 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
1033 | \n\ | |
1034 | ALIST can also be a function to do the completion itself.\n\ | |
1035 | It receives three arguments: the values STRING, PREDICATE and nil.\n\ | |
1036 | Whatever it returns becomes the value of `try-completion'.\n\ | |
1037 | \n\ | |
1038 | If optional third argument PREDICATE is non-nil,\n\ | |
1039 | it is used to test each possible match.\n\ | |
1040 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc | 1041 | The argument given to PREDICATE is the alist element\n\ |
b9b84fd3 SM |
1042 | or the symbol from the obarray.\n\ |
1043 | Additionally to this predicate, `completion-regexp-list'\n\ | |
1044 | is used to further constrain the set of candidates.") | |
7efd36fc EN |
1045 | (string, alist, predicate) |
1046 | Lisp_Object string, alist, predicate; | |
f927c5ae JB |
1047 | { |
1048 | Lisp_Object bestmatch, tail, elt, eltstring; | |
af2b7cd5 | 1049 | /* Size in bytes of BESTMATCH. */ |
6bbd7a29 | 1050 | int bestmatchsize = 0; |
af2b7cd5 | 1051 | /* These are in bytes, too. */ |
f927c5ae | 1052 | int compare, matchsize; |
56a98455 | 1053 | int list = CONSP (alist) || NILP (alist); |
6bbd7a29 | 1054 | int index = 0, obsize = 0; |
f927c5ae JB |
1055 | int matchcount = 0; |
1056 | Lisp_Object bucket, zero, end, tem; | |
1057 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1058 | ||
1059 | CHECK_STRING (string, 0); | |
7510b296 | 1060 | if (!list && !VECTORP (alist)) |
7efd36fc | 1061 | return call3 (alist, string, predicate, Qnil); |
f927c5ae | 1062 | |
6bbd7a29 | 1063 | bestmatch = bucket = Qnil; |
f927c5ae JB |
1064 | |
1065 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1066 | tail = alist; | |
1067 | if (! list) | |
1068 | { | |
1069 | index = 0; | |
1070 | obsize = XVECTOR (alist)->size; | |
1071 | bucket = XVECTOR (alist)->contents[index]; | |
1072 | } | |
1073 | ||
1074 | while (1) | |
1075 | { | |
1076 | /* Get the next element of the alist or obarray. */ | |
1077 | /* Exit the loop if the elements are all used up. */ | |
1078 | /* elt gets the alist element or symbol. | |
1079 | eltstring gets the name to check as a completion. */ | |
1080 | ||
1081 | if (list) | |
1082 | { | |
56a98455 | 1083 | if (NILP (tail)) |
f927c5ae JB |
1084 | break; |
1085 | elt = Fcar (tail); | |
1086 | eltstring = Fcar (elt); | |
1087 | tail = Fcdr (tail); | |
1088 | } | |
1089 | else | |
1090 | { | |
1091 | if (XFASTINT (bucket) != 0) | |
1092 | { | |
1093 | elt = bucket; | |
1094 | eltstring = Fsymbol_name (elt); | |
1095 | if (XSYMBOL (bucket)->next) | |
1096 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1097 | else | |
5a866662 | 1098 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1099 | } |
1100 | else if (++index >= obsize) | |
1101 | break; | |
1102 | else | |
1103 | { | |
1104 | bucket = XVECTOR (alist)->contents[index]; | |
1105 | continue; | |
1106 | } | |
1107 | } | |
1108 | ||
1109 | /* Is this element a possible completion? */ | |
1110 | ||
7510b296 | 1111 | if (STRINGP (eltstring) |
7d315986 | 1112 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
69f4ef20 RS |
1113 | && (tem = Fcompare_strings (eltstring, make_number (0), |
1114 | make_number (XSTRING (string)->size), | |
1115 | string, make_number (0), Qnil, | |
1116 | completion_ignore_case ?Qt : Qnil), | |
1117 | EQ (Qt, tem))) | |
f927c5ae JB |
1118 | { |
1119 | /* Yes. */ | |
42006772 RS |
1120 | Lisp_Object regexps; |
1121 | Lisp_Object zero; | |
5a866662 | 1122 | XSETFASTINT (zero, 0); |
42006772 RS |
1123 | |
1124 | /* Ignore this element if it fails to match all the regexps. */ | |
1125 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1126 | regexps = XCDR (regexps)) |
42006772 | 1127 | { |
7539e11f | 1128 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1129 | if (NILP (tem)) |
1130 | break; | |
1131 | } | |
1132 | if (CONSP (regexps)) | |
1133 | continue; | |
1134 | ||
f927c5ae JB |
1135 | /* Ignore this element if there is a predicate |
1136 | and the predicate doesn't like it. */ | |
1137 | ||
7efd36fc | 1138 | if (!NILP (predicate)) |
f927c5ae | 1139 | { |
7efd36fc | 1140 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1141 | tem = Fcommandp (elt); |
1142 | else | |
1143 | { | |
1144 | GCPRO4 (tail, string, eltstring, bestmatch); | |
7efd36fc | 1145 | tem = call1 (predicate, elt); |
f927c5ae JB |
1146 | UNGCPRO; |
1147 | } | |
56a98455 | 1148 | if (NILP (tem)) continue; |
f927c5ae JB |
1149 | } |
1150 | ||
1151 | /* Update computation of how much all possible completions match */ | |
1152 | ||
1153 | matchcount++; | |
56a98455 | 1154 | if (NILP (bestmatch)) |
af2b7cd5 RS |
1155 | { |
1156 | bestmatch = eltstring; | |
69f4ef20 | 1157 | bestmatchsize = XSTRING (eltstring)->size; |
af2b7cd5 | 1158 | } |
f927c5ae JB |
1159 | else |
1160 | { | |
69f4ef20 RS |
1161 | compare = min (bestmatchsize, XSTRING (eltstring)->size); |
1162 | tem = Fcompare_strings (bestmatch, make_number (0), | |
1163 | make_number (compare), | |
1164 | eltstring, make_number (0), | |
1165 | make_number (compare), | |
1166 | completion_ignore_case ? Qt : Qnil); | |
1167 | if (EQ (tem, Qt)) | |
1168 | matchsize = compare; | |
1169 | else if (XINT (tem) < 0) | |
1170 | matchsize = - XINT (tem) - 1; | |
1171 | else | |
1172 | matchsize = XINT (tem) - 1; | |
1173 | ||
52b14ac0 JB |
1174 | if (matchsize < 0) |
1175 | matchsize = compare; | |
1176 | if (completion_ignore_case) | |
1177 | { | |
1178 | /* If this is an exact match except for case, | |
1179 | use it as the best match rather than one that is not an | |
1180 | exact match. This way, we get the case pattern | |
1181 | of the actual match. */ | |
69f4ef20 RS |
1182 | if ((matchsize == XSTRING (eltstring)->size |
1183 | && matchsize < XSTRING (bestmatch)->size) | |
52b14ac0 JB |
1184 | || |
1185 | /* If there is more than one exact match ignoring case, | |
1186 | and one of them is exact including case, | |
1187 | prefer that one. */ | |
1188 | /* If there is no exact match ignoring case, | |
1189 | prefer a match that does not change the case | |
1190 | of the input. */ | |
69f4ef20 | 1191 | ((matchsize == XSTRING (eltstring)->size) |
52b14ac0 | 1192 | == |
69f4ef20 RS |
1193 | (matchsize == XSTRING (bestmatch)->size) |
1194 | && (tem = Fcompare_strings (eltstring, make_number (0), | |
1195 | make_number (XSTRING (string)->size), | |
1196 | string, make_number (0), | |
1197 | Qnil, | |
1198 | Qnil), | |
1199 | EQ (Qt, tem)) | |
1200 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
1201 | make_number (XSTRING (string)->size), | |
1202 | string, make_number (0), | |
1203 | Qnil, | |
1204 | Qnil), | |
1205 | ! EQ (Qt, tem)))) | |
52b14ac0 JB |
1206 | bestmatch = eltstring; |
1207 | } | |
1208 | bestmatchsize = matchsize; | |
f927c5ae JB |
1209 | } |
1210 | } | |
1211 | } | |
1212 | ||
56a98455 | 1213 | if (NILP (bestmatch)) |
f927c5ae | 1214 | return Qnil; /* No completions found */ |
52b14ac0 JB |
1215 | /* If we are ignoring case, and there is no exact match, |
1216 | and no additional text was supplied, | |
1217 | don't change the case of what the user typed. */ | |
69f4ef20 RS |
1218 | if (completion_ignore_case && bestmatchsize == XSTRING (string)->size |
1219 | && XSTRING (bestmatch)->size > bestmatchsize) | |
ec067ec7 | 1220 | return minibuf_conform_representation (string, bestmatch); |
52b14ac0 JB |
1221 | |
1222 | /* Return t if the supplied string is an exact match (counting case); | |
1223 | it does not require any change to be made. */ | |
69f4ef20 RS |
1224 | if (matchcount == 1 && bestmatchsize == XSTRING (string)->size |
1225 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
1226 | make_number (bestmatchsize), | |
1227 | string, make_number (0), | |
1228 | make_number (bestmatchsize), | |
1229 | Qnil), | |
1230 | EQ (Qt, tem))) | |
f927c5ae JB |
1231 | return Qt; |
1232 | ||
5a866662 KH |
1233 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1234 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1235 | return Fsubstring (bestmatch, zero, end); |
1236 | } | |
1237 | ||
1238 | /* Compare exactly LEN chars of strings at S1 and S2, | |
1239 | ignoring case if appropriate. | |
1240 | Return -1 if strings match, | |
1241 | else number of chars that match at the beginning. */ | |
1242 | ||
829f7f7c | 1243 | int |
f927c5ae | 1244 | scmp (s1, s2, len) |
829f7f7c | 1245 | register unsigned char *s1, *s2; |
f927c5ae JB |
1246 | int len; |
1247 | { | |
1248 | register int l = len; | |
1249 | ||
1250 | if (completion_ignore_case) | |
1251 | { | |
2e34157c | 1252 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) |
f927c5ae JB |
1253 | l--; |
1254 | } | |
1255 | else | |
1256 | { | |
1257 | while (l && *s1++ == *s2++) | |
1258 | l--; | |
1259 | } | |
1260 | if (l == 0) | |
1261 | return -1; | |
829f7f7c | 1262 | else |
d50a3d2a KH |
1263 | { |
1264 | int match = len - l; | |
1265 | ||
1266 | /* Now *--S1 is the unmatching byte. If it is in the middle of | |
1267 | multi-byte form, we must say that the multi-byte character | |
1268 | there doesn't match. */ | |
1269 | while (match && *--s1 >= 0xA0) match--; | |
1270 | return match; | |
1271 | } | |
f927c5ae JB |
1272 | } |
1273 | \f | |
89a255dc | 1274 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
f927c5ae JB |
1275 | "Search for partial matches to STRING in ALIST.\n\ |
1276 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
1277 | The value is a list of all the strings from ALIST that match.\n\ | |
89a255dc | 1278 | \n\ |
f927c5ae JB |
1279 | ALIST can be an obarray instead of an alist.\n\ |
1280 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
1281 | \n\ | |
1282 | ALIST can also be a function to do the completion itself.\n\ | |
1283 | It receives three arguments: the values STRING, PREDICATE and t.\n\ | |
d3887e33 | 1284 | Whatever it returns becomes the value of `all-completions'.\n\ |
f927c5ae JB |
1285 | \n\ |
1286 | If optional third argument PREDICATE is non-nil,\n\ | |
1287 | it is used to test each possible match.\n\ | |
1288 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
1289 | The argument given to PREDICATE is the alist element\n\ |
1290 | or the symbol from the obarray.\n\ | |
b9b84fd3 SM |
1291 | Additionally to this predicate, `completion-regexp-list'\n\ |
1292 | is used to further constrain the set of candidates.\n\ | |
89a255dc RS |
1293 | \n\ |
1294 | If the optional fourth argument HIDE-SPACES is non-nil,\n\ | |
1295 | strings in ALIST that start with a space\n\ | |
1296 | are ignored unless STRING itself starts with a space.") | |
7efd36fc EN |
1297 | (string, alist, predicate, hide_spaces) |
1298 | Lisp_Object string, alist, predicate, hide_spaces; | |
f927c5ae JB |
1299 | { |
1300 | Lisp_Object tail, elt, eltstring; | |
1301 | Lisp_Object allmatches; | |
56a98455 | 1302 | int list = CONSP (alist) || NILP (alist); |
6bbd7a29 | 1303 | int index = 0, obsize = 0; |
f927c5ae JB |
1304 | Lisp_Object bucket, tem; |
1305 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1306 | ||
1307 | CHECK_STRING (string, 0); | |
7510b296 | 1308 | if (!list && !VECTORP (alist)) |
f927c5ae | 1309 | { |
7efd36fc | 1310 | return call3 (alist, string, predicate, Qt); |
f927c5ae | 1311 | } |
6bbd7a29 | 1312 | allmatches = bucket = Qnil; |
f927c5ae JB |
1313 | |
1314 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1315 | tail = alist; | |
1316 | if (! list) | |
1317 | { | |
1318 | index = 0; | |
1319 | obsize = XVECTOR (alist)->size; | |
1320 | bucket = XVECTOR (alist)->contents[index]; | |
1321 | } | |
1322 | ||
1323 | while (1) | |
1324 | { | |
1325 | /* Get the next element of the alist or obarray. */ | |
1326 | /* Exit the loop if the elements are all used up. */ | |
1327 | /* elt gets the alist element or symbol. | |
1328 | eltstring gets the name to check as a completion. */ | |
1329 | ||
1330 | if (list) | |
1331 | { | |
56a98455 | 1332 | if (NILP (tail)) |
f927c5ae JB |
1333 | break; |
1334 | elt = Fcar (tail); | |
1335 | eltstring = Fcar (elt); | |
1336 | tail = Fcdr (tail); | |
1337 | } | |
1338 | else | |
1339 | { | |
1340 | if (XFASTINT (bucket) != 0) | |
1341 | { | |
1342 | elt = bucket; | |
1343 | eltstring = Fsymbol_name (elt); | |
1344 | if (XSYMBOL (bucket)->next) | |
1345 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1346 | else | |
5a866662 | 1347 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1348 | } |
1349 | else if (++index >= obsize) | |
1350 | break; | |
1351 | else | |
1352 | { | |
1353 | bucket = XVECTOR (alist)->contents[index]; | |
1354 | continue; | |
1355 | } | |
1356 | } | |
1357 | ||
1358 | /* Is this element a possible completion? */ | |
1359 | ||
7510b296 | 1360 | if (STRINGP (eltstring) |
7d315986 | 1361 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
89a255dc | 1362 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 | 1363 | unless the input starts with space. */ |
fc932ac6 | 1364 | && ((STRING_BYTES (XSTRING (string)) > 0 |
af2b7cd5 | 1365 | && XSTRING (string)->data[0] == ' ') |
89a255dc RS |
1366 | || XSTRING (eltstring)->data[0] != ' ' |
1367 | || NILP (hide_spaces)) | |
69f4ef20 RS |
1368 | && (tem = Fcompare_strings (eltstring, make_number (0), |
1369 | make_number (XSTRING (string)->size), | |
1370 | string, make_number (0), | |
1371 | make_number (XSTRING (string)->size), | |
1372 | completion_ignore_case ? Qt : Qnil), | |
1373 | EQ (Qt, tem))) | |
f927c5ae JB |
1374 | { |
1375 | /* Yes. */ | |
42006772 RS |
1376 | Lisp_Object regexps; |
1377 | Lisp_Object zero; | |
5a866662 | 1378 | XSETFASTINT (zero, 0); |
42006772 RS |
1379 | |
1380 | /* Ignore this element if it fails to match all the regexps. */ | |
1381 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
7539e11f | 1382 | regexps = XCDR (regexps)) |
42006772 | 1383 | { |
7539e11f | 1384 | tem = Fstring_match (XCAR (regexps), eltstring, zero); |
42006772 RS |
1385 | if (NILP (tem)) |
1386 | break; | |
1387 | } | |
1388 | if (CONSP (regexps)) | |
1389 | continue; | |
1390 | ||
f927c5ae JB |
1391 | /* Ignore this element if there is a predicate |
1392 | and the predicate doesn't like it. */ | |
1393 | ||
7efd36fc | 1394 | if (!NILP (predicate)) |
f927c5ae | 1395 | { |
7efd36fc | 1396 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1397 | tem = Fcommandp (elt); |
1398 | else | |
1399 | { | |
1400 | GCPRO4 (tail, eltstring, allmatches, string); | |
7efd36fc | 1401 | tem = call1 (predicate, elt); |
f927c5ae JB |
1402 | UNGCPRO; |
1403 | } | |
56a98455 | 1404 | if (NILP (tem)) continue; |
f927c5ae JB |
1405 | } |
1406 | /* Ok => put it on the list. */ | |
1407 | allmatches = Fcons (eltstring, allmatches); | |
1408 | } | |
1409 | } | |
1410 | ||
1411 | return Fnreverse (allmatches); | |
1412 | } | |
1413 | \f | |
1414 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1415 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1416 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
ccf330a6 | 1417 | Lisp_Object Vminibuffer_completing_file_name; |
f927c5ae | 1418 | |
b9d721de JB |
1419 | /* This comment supplies the doc string for completing-read, |
1420 | for make-docfile to see. We cannot put this in the real DEFUN | |
1421 | due to limits in the Unix cpp. | |
1422 | ||
cee54539 | 1423 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
f927c5ae | 1424 | "Read a string in the minibuffer, with completion.\n\ |
f927c5ae JB |
1425 | PROMPT is a string to prompt with; normally it ends in a colon and a space.\n\ |
1426 | TABLE is an alist whose elements' cars are strings, or an obarray.\n\ | |
834938d2 | 1427 | TABLE can also be a function to do the completion itself.\n\ |
f927c5ae | 1428 | PREDICATE limits completion to a subset of TABLE.\n\ |
60e6659c | 1429 | See `try-completion' and `all-completions' for more details\n\ |
6b3faad8 | 1430 | on completion, TABLE, and PREDICATE.\n\ |
cbbc3917 | 1431 | \n\ |
f927c5ae | 1432 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless\n\ |
4ced3209 | 1433 | the input is (or completes to) an element of TABLE or is null.\n\ |
f927c5ae | 1434 | If it is also not t, Return does not exit if it does non-null completion.\n\ |
fab95625 | 1435 | If the input is null, `completing-read' returns an empty string,\n\ |
cbbc3917 RS |
1436 | regardless of the value of REQUIRE-MATCH.\n\ |
1437 | \n\ | |
f927c5ae | 1438 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.\n\ |
770970cb RS |
1439 | If it is (STRING . POSITION), the initial input\n\ |
1440 | is STRING, but point is placed POSITION characters into the string.\n\ | |
1441 | HIST, if non-nil, specifies a history list\n\ | |
1442 | and optionally the initial position in the list.\n\ | |
1443 | It can be a symbol, which is the history list variable to use,\n\ | |
1444 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
1445 | In that case, HISTVAR is the history list variable to use,\n\ | |
1446 | and HISTPOS is the initial position (the position in the list\n\ | |
4356f221 | 1447 | which INITIAL-INPUT corresponds to).\n\ |
770970cb | 1448 | Positions are counted starting from 1 at the beginning of the list.\n\ |
cee54539 KH |
1449 | DEF, if non-nil, is the default value.\n\ |
1450 | \n\ | |
1451 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits\n\ | |
c8c15521 | 1452 | the current input method and the setting of enable-multibyte-characters.\n\ |
cee54539 | 1453 | \n\ |
770970cb | 1454 | Completion ignores case if the ambient value of\n\ |
b9d721de JB |
1455 | `completion-ignore-case' is non-nil." |
1456 | */ | |
cee54539 | 1457 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
b9d721de | 1458 | 0 /* See immediately above */) |
d43f85c2 RS |
1459 | (prompt, table, predicate, require_match, initial_input, hist, def, inherit_input_method) |
1460 | Lisp_Object prompt, table, predicate, require_match, initial_input; | |
1461 | Lisp_Object hist, def, inherit_input_method; | |
f927c5ae | 1462 | { |
770970cb | 1463 | Lisp_Object val, histvar, histpos, position; |
d43f85c2 | 1464 | Lisp_Object init; |
770970cb | 1465 | int pos = 0; |
f927c5ae | 1466 | int count = specpdl_ptr - specpdl; |
0c8ee1a2 RS |
1467 | struct gcpro gcpro1; |
1468 | ||
d43f85c2 | 1469 | init = initial_input; |
0c8ee1a2 RS |
1470 | GCPRO1 (def); |
1471 | ||
f927c5ae | 1472 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1473 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae JB |
1474 | specbind (Qminibuffer_completion_confirm, |
1475 | EQ (require_match, Qt) ? Qnil : Qt); | |
1476 | last_exact_completion = Qnil; | |
770970cb RS |
1477 | |
1478 | position = Qnil; | |
1479 | if (!NILP (init)) | |
1480 | { | |
7510b296 | 1481 | if (CONSP (init)) |
770970cb RS |
1482 | { |
1483 | position = Fcdr (init); | |
1484 | init = Fcar (init); | |
1485 | } | |
1486 | CHECK_STRING (init, 0); | |
1487 | if (!NILP (position)) | |
1488 | { | |
1489 | CHECK_NUMBER (position, 0); | |
1490 | /* Convert to distance from end of input. */ | |
5dadd3a2 | 1491 | pos = XINT (position) - XSTRING (init)->size; |
770970cb RS |
1492 | } |
1493 | } | |
1494 | ||
7510b296 | 1495 | if (SYMBOLP (hist)) |
770970cb RS |
1496 | { |
1497 | histvar = hist; | |
1498 | histpos = Qnil; | |
1499 | } | |
1500 | else | |
1501 | { | |
1502 | histvar = Fcar_safe (hist); | |
1503 | histpos = Fcdr_safe (hist); | |
1504 | } | |
1505 | if (NILP (histvar)) | |
1506 | histvar = Qminibuffer_history; | |
1507 | if (NILP (histpos)) | |
5a866662 | 1508 | XSETFASTINT (histpos, 0); |
770970cb | 1509 | |
56a98455 | 1510 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1511 | ? Vminibuffer_local_completion_map |
1512 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1513 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1514 | histvar, histpos, def, 0, |
1515 | !NILP (inherit_input_method)); | |
b9a86585 RS |
1516 | |
1517 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (def)) | |
1518 | val = def; | |
1519 | ||
0c8ee1a2 | 1520 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1521 | } |
1522 | \f | |
f927c5ae | 1523 | Lisp_Object Fminibuffer_completion_help (); |
52b14ac0 | 1524 | Lisp_Object assoc_for_completion (); |
5d2ca7ae RS |
1525 | |
1526 | /* Test whether TXT is an exact completion. */ | |
1527 | Lisp_Object | |
1528 | test_completion (txt) | |
1529 | Lisp_Object txt; | |
1530 | { | |
1531 | Lisp_Object tem; | |
1532 | ||
1533 | if (CONSP (Vminibuffer_completion_table) | |
1534 | || NILP (Vminibuffer_completion_table)) | |
1535 | return assoc_for_completion (txt, Vminibuffer_completion_table); | |
1536 | else if (VECTORP (Vminibuffer_completion_table)) | |
1537 | { | |
1538 | /* Bypass intern-soft as that loses for nil */ | |
1539 | tem = oblookup (Vminibuffer_completion_table, | |
af2b7cd5 RS |
1540 | XSTRING (txt)->data, |
1541 | XSTRING (txt)->size, | |
fc932ac6 | 1542 | STRING_BYTES (XSTRING (txt))); |
44472c88 | 1543 | if (!SYMBOLP (tem)) |
9404446f RS |
1544 | { |
1545 | if (STRING_MULTIBYTE (txt)) | |
1546 | txt = Fstring_make_unibyte (txt); | |
1547 | else | |
1548 | txt = Fstring_make_multibyte (txt); | |
1549 | ||
1550 | tem = oblookup (Vminibuffer_completion_table, | |
1551 | XSTRING (txt)->data, | |
1552 | XSTRING (txt)->size, | |
1553 | STRING_BYTES (XSTRING (txt))); | |
1554 | if (!SYMBOLP (tem)) | |
1555 | return Qnil; | |
1556 | } | |
1557 | if (!NILP (Vminibuffer_completion_predicate)) | |
5d2ca7ae RS |
1558 | return call1 (Vminibuffer_completion_predicate, tem); |
1559 | else | |
1560 | return Qt; | |
1561 | } | |
1562 | else | |
1563 | return call3 (Vminibuffer_completion_table, txt, | |
1564 | Vminibuffer_completion_predicate, Qlambda); | |
1565 | } | |
f927c5ae JB |
1566 | |
1567 | /* returns: | |
1568 | * 0 no possible completion | |
1569 | * 1 was already an exact and unique completion | |
1570 | * 3 was already an exact completion | |
1571 | * 4 completed to an exact completion | |
1572 | * 5 some completion happened | |
1573 | * 6 no completion happened | |
1574 | */ | |
1575 | int | |
1576 | do_completion () | |
1577 | { | |
0c80756e | 1578 | Lisp_Object completion, string, tem; |
f927c5ae JB |
1579 | int completedp; |
1580 | Lisp_Object last; | |
1e00c2ff | 1581 | struct gcpro gcpro1, gcpro2; |
f927c5ae | 1582 | |
7c752c80 | 1583 | completion = Ftry_completion (Ffield_string (make_number (ZV)), |
8e9968c6 | 1584 | Vminibuffer_completion_table, |
f927c5ae JB |
1585 | Vminibuffer_completion_predicate); |
1586 | last = last_exact_completion; | |
1587 | last_exact_completion = Qnil; | |
1588 | ||
4f9b95e5 KH |
1589 | GCPRO2 (completion, last); |
1590 | ||
56a98455 | 1591 | if (NILP (completion)) |
f927c5ae JB |
1592 | { |
1593 | bitch_at_user (); | |
1594 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1595 | UNGCPRO; |
f927c5ae JB |
1596 | return 0; |
1597 | } | |
1598 | ||
1599 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1600 | { |
1601 | UNGCPRO; | |
1602 | return 1; | |
1603 | } | |
f927c5ae | 1604 | |
0c80756e MB |
1605 | string = Ffield_string (make_number (ZV)); |
1606 | ||
1607 | /* COMPLETEDP should be true if some completion was done, which | |
1608 | doesn't include simply changing the case of the entered string. | |
1609 | However, for appearance, the string is rewritten if the case | |
1610 | changes. */ | |
1611 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qt); | |
01cce3e7 | 1612 | completedp = !EQ (tem, Qt); |
0c80756e | 1613 | |
7892a68b KH |
1614 | tem = Fcompare_strings (completion, Qnil, Qnil, string, Qnil, Qnil, Qnil); |
1615 | if (!EQ (tem, Qt)) | |
0c80756e | 1616 | /* Rewrite the user's input. */ |
f927c5ae | 1617 | { |
98cbb9a3 | 1618 | Fdelete_field (make_number (ZV)); /* Some completion happened */ |
f927c5ae | 1619 | Finsert (1, &completion); |
6e69ab8c MB |
1620 | |
1621 | if (! completedp) | |
1622 | /* The case of the string changed, but that's all. We're not | |
1623 | sure whether this is a unique completion or not, so try again | |
1624 | using the real case (this shouldn't recurse again, because | |
1625 | the next time try-completion will return either `t' or the | |
1626 | exact string). */ | |
1627 | { | |
1628 | UNGCPRO; | |
1629 | return do_completion (); | |
1630 | } | |
f927c5ae JB |
1631 | } |
1632 | ||
1633 | /* It did find a match. Do we match some possibility exactly now? */ | |
7c752c80 | 1634 | tem = test_completion (Ffield_string (make_number (ZV))); |
56a98455 | 1635 | if (NILP (tem)) |
1e00c2ff KH |
1636 | { |
1637 | /* not an exact match */ | |
1638 | UNGCPRO; | |
f927c5ae JB |
1639 | if (completedp) |
1640 | return 5; | |
739cc391 | 1641 | else if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1642 | Fminibuffer_completion_help (); |
1643 | else | |
1644 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1645 | return 6; | |
1646 | } | |
1647 | else if (completedp) | |
1e00c2ff KH |
1648 | { |
1649 | UNGCPRO; | |
1650 | return 4; | |
1651 | } | |
f927c5ae JB |
1652 | /* If the last exact completion and this one were the same, |
1653 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1654 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1655 | last_exact_completion = completion; |
56a98455 | 1656 | if (!NILP (last)) |
f927c5ae | 1657 | { |
7c752c80 | 1658 | tem = Ffield_string (make_number (ZV)); |
56a98455 | 1659 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1660 | Fminibuffer_completion_help (); |
1661 | } | |
1e00c2ff | 1662 | UNGCPRO; |
f927c5ae | 1663 | return 3; |
f927c5ae | 1664 | } |
1e00c2ff | 1665 | |
52b14ac0 JB |
1666 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1667 | ||
1668 | Lisp_Object | |
1669 | assoc_for_completion (key, list) | |
1670 | register Lisp_Object key; | |
1671 | Lisp_Object list; | |
1672 | { | |
1673 | register Lisp_Object tail; | |
1674 | ||
56a98455 | 1675 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1676 | { |
1677 | register Lisp_Object elt, tem, thiscar; | |
1678 | elt = Fcar (tail); | |
1679 | if (!CONSP (elt)) continue; | |
1680 | thiscar = Fcar (elt); | |
7510b296 | 1681 | if (!STRINGP (thiscar)) |
52b14ac0 | 1682 | continue; |
9404446f RS |
1683 | tem = Fcompare_strings (thiscar, make_number (0), Qnil, |
1684 | key, make_number (0), Qnil, | |
1685 | completion_ignore_case ? Qt : Qnil); | |
1686 | if (EQ (tem, Qt)) | |
1687 | return elt; | |
52b14ac0 JB |
1688 | QUIT; |
1689 | } | |
1690 | return Qnil; | |
1691 | } | |
f927c5ae JB |
1692 | |
1693 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
6300d782 | 1694 | "Complete the minibuffer contents as far as possible.\n\ |
2cb6da5c RS |
1695 | Return nil if there is no valid completion, else t.\n\ |
1696 | If no characters can be completed, display a list of possible completions.\n\ | |
1697 | If you repeat this command after it displayed such a list,\n\ | |
1698 | scroll the window of possible completions.") | |
f927c5ae JB |
1699 | () |
1700 | { | |
2cb6da5c RS |
1701 | register int i; |
1702 | Lisp_Object window, tem; | |
1703 | ||
df902b62 RS |
1704 | /* If the previous command was not this, |
1705 | mark the completion buffer obsolete. */ | |
1706 | if (! EQ (current_kboard->Vlast_command, Vthis_command)) | |
2cb6da5c RS |
1707 | Vminibuf_scroll_window = Qnil; |
1708 | ||
1709 | window = Vminibuf_scroll_window; | |
1710 | /* If there's a fresh completion window with a live buffer, | |
1711 | and this command is repeated, scroll that window. */ | |
1712 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1713 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1714 | { | |
1715 | struct buffer *obuf = current_buffer; | |
1716 | ||
1717 | Fset_buffer (XWINDOW (window)->buffer); | |
18ad4821 | 1718 | tem = Fpos_visible_in_window_p (make_number (ZV), window, Qt); |
2cb6da5c RS |
1719 | if (! NILP (tem)) |
1720 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1721 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1722 | else |
1723 | /* Else scroll down one screen. */ | |
1724 | Fscroll_other_window (Qnil); | |
1725 | ||
1726 | set_buffer_internal (obuf); | |
1727 | return Qnil; | |
1728 | } | |
1729 | ||
1730 | i = do_completion (); | |
f927c5ae JB |
1731 | switch (i) |
1732 | { | |
1733 | case 0: | |
1734 | return Qnil; | |
1735 | ||
1736 | case 1: | |
a1c5aa96 GM |
1737 | if (PT != ZV) |
1738 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1739 | temp_echo_area_glyphs (" [Sole completion]"); |
1740 | break; | |
1741 | ||
1742 | case 3: | |
9994cc69 GM |
1743 | if (PT != ZV) |
1744 | Fgoto_char (make_number (ZV)); | |
f927c5ae JB |
1745 | temp_echo_area_glyphs (" [Complete, but not unique]"); |
1746 | break; | |
1747 | } | |
1748 | ||
1749 | return Qt; | |
1750 | } | |
e4c97a67 RS |
1751 | \f |
1752 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1753 | ||
1754 | /* This one is called by internal_condition_case to do the real work. */ | |
1755 | ||
1756 | Lisp_Object | |
1757 | complete_and_exit_1 () | |
1758 | { | |
1759 | return make_number (do_completion ()); | |
1760 | } | |
1761 | ||
1762 | /* This one is called by internal_condition_case if an error happens. | |
1763 | Pretend the current value is an exact match. */ | |
1764 | ||
1765 | Lisp_Object | |
1766 | complete_and_exit_2 (ignore) | |
1767 | Lisp_Object ignore; | |
1768 | { | |
1769 | return make_number (1); | |
1770 | } | |
f927c5ae JB |
1771 | |
1772 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
1773 | Sminibuffer_complete_and_exit, 0, 0, "", | |
5d2ca7ae RS |
1774 | "If the minibuffer contents is a valid completion then exit.\n\ |
1775 | Otherwise try to complete it. If completion leads to a valid completion,\n\ | |
f927c5ae JB |
1776 | a repetition of this command will exit.") |
1777 | () | |
1778 | { | |
1779 | register int i; | |
e4c97a67 | 1780 | Lisp_Object val; |
f927c5ae JB |
1781 | |
1782 | /* Allow user to specify null string */ | |
7c752c80 | 1783 | if (XINT (Ffield_beginning (make_number (ZV), Qnil)) == ZV) |
f927c5ae JB |
1784 | goto exit; |
1785 | ||
7c752c80 | 1786 | if (!NILP (test_completion (Ffield_string (make_number (ZV))))) |
5d2ca7ae RS |
1787 | goto exit; |
1788 | ||
e4c97a67 RS |
1789 | /* Call do_completion, but ignore errors. */ |
1790 | val = internal_condition_case (complete_and_exit_1, Qerror, | |
1791 | complete_and_exit_2); | |
1792 | ||
1793 | i = XFASTINT (val); | |
f927c5ae JB |
1794 | switch (i) |
1795 | { | |
1796 | case 1: | |
1797 | case 3: | |
1798 | goto exit; | |
1799 | ||
1800 | case 4: | |
56a98455 | 1801 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1802 | { |
1803 | temp_echo_area_glyphs (" [Confirm]"); | |
1804 | return Qnil; | |
1805 | } | |
1806 | else | |
1807 | goto exit; | |
1808 | ||
1809 | default: | |
1810 | return Qnil; | |
1811 | } | |
1812 | exit: | |
6bbd7a29 | 1813 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
1814 | /* NOTREACHED */ |
1815 | } | |
1816 | ||
1817 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
1818 | 0, 0, "", | |
1819 | "Complete the minibuffer contents at most a single word.\n\ | |
1820 | After one word is completed as much as possible, a space or hyphen\n\ | |
6300d782 KH |
1821 | is added, provided that matches some possible completion.\n\ |
1822 | Return nil if there is no valid completion, else t.") | |
f927c5ae JB |
1823 | () |
1824 | { | |
69f4ef20 | 1825 | Lisp_Object completion, tem, tem1; |
af2b7cd5 | 1826 | register int i, i_byte; |
f927c5ae | 1827 | register unsigned char *completion_string; |
d7be4211 | 1828 | struct gcpro gcpro1, gcpro2; |
8e9968c6 | 1829 | int prompt_end_charpos; |
b278606c BF |
1830 | |
1831 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1832 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae | 1833 | |
7c752c80 | 1834 | completion = Ftry_completion (Ffield_string (make_number (ZV)), |
f927c5ae JB |
1835 | Vminibuffer_completion_table, |
1836 | Vminibuffer_completion_predicate); | |
56a98455 | 1837 | if (NILP (completion)) |
f927c5ae JB |
1838 | { |
1839 | bitch_at_user (); | |
1840 | temp_echo_area_glyphs (" [No match]"); | |
1841 | return Qnil; | |
1842 | } | |
1843 | if (EQ (completion, Qt)) | |
1844 | return Qnil; | |
1845 | ||
b278606c | 1846 | #if 0 /* How the below code used to look, for reference. */ |
7c752c80 | 1847 | tem = Ffield_string (make_number (ZV)); |
f927c5ae JB |
1848 | b = XSTRING (tem)->data; |
1849 | i = ZV - 1 - XSTRING (completion)->size; | |
1850 | p = XSTRING (completion)->data; | |
1851 | if (i > 0 || | |
1852 | 0 <= scmp (b, p, ZV - 1)) | |
1853 | { | |
1854 | i = 1; | |
1855 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1856 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1857 | i++; | |
1858 | del_range (1, i + 1); | |
1859 | SET_PT (ZV); | |
1860 | } | |
1861 | #else /* Rewritten code */ | |
1862 | { | |
69f4ef20 | 1863 | int buffer_nchars, completion_nchars; |
f927c5ae | 1864 | |
59860a8c | 1865 | CHECK_STRING (completion, 0); |
7c752c80 | 1866 | tem = Ffield_string (make_number (ZV)); |
d7be4211 | 1867 | GCPRO2 (completion, tem); |
719b4a40 RS |
1868 | /* If reading a file name, |
1869 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
ccf330a6 | 1870 | if (! NILP (Vminibuffer_completing_file_name)) |
719b4a40 RS |
1871 | { |
1872 | Lisp_Object substituted; | |
1873 | substituted = Fsubstitute_in_file_name (tem); | |
1874 | if (! EQ (substituted, tem)) | |
1875 | { | |
1876 | tem = substituted; | |
98cbb9a3 | 1877 | Fdelete_field (make_number (ZV)); |
af2b7cd5 | 1878 | insert_from_string (tem, 0, 0, XSTRING (tem)->size, |
fc932ac6 | 1879 | STRING_BYTES (XSTRING (tem)), 0); |
719b4a40 RS |
1880 | } |
1881 | } | |
69f4ef20 RS |
1882 | buffer_nchars = XSTRING (tem)->size; /* ie ZV - BEGV */ |
1883 | completion_nchars = XSTRING (completion)->size; | |
1884 | i = buffer_nchars - completion_nchars; | |
1885 | if (i > 0 | |
1886 | || | |
1887 | (tem1 = Fcompare_strings (tem, make_number (0), | |
1888 | make_number (buffer_nchars), | |
1889 | completion, make_number (0), | |
1890 | make_number (buffer_nchars), | |
1891 | completion_ignore_case ? Qt : Qnil), | |
1892 | ! EQ (tem1, Qt))) | |
f927c5ae | 1893 | { |
69f4ef20 RS |
1894 | int start_pos; |
1895 | ||
1896 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1897 | if (i <= 0) i = 1; | |
1898 | start_pos= i; | |
1899 | buffer_nchars -= i; | |
669c6673 | 1900 | while (i > 0) |
69f4ef20 | 1901 | { |
669c6673 | 1902 | tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil, |
69f4ef20 RS |
1903 | completion, make_number (0), |
1904 | make_number (buffer_nchars), | |
1905 | completion_ignore_case ? Qt : Qnil); | |
1906 | start_pos++; | |
1907 | if (EQ (tem1, Qt)) | |
1908 | break; | |
1909 | i++; | |
669c6673 | 1910 | buffer_nchars--; |
69f4ef20 RS |
1911 | } |
1912 | del_range (1, i + 1); | |
a9c26562 | 1913 | SET_PT_BOTH (ZV, ZV_BYTE); |
f927c5ae | 1914 | } |
d7be4211 | 1915 | UNGCPRO; |
f927c5ae JB |
1916 | } |
1917 | #endif /* Rewritten code */ | |
279cf52c | 1918 | |
7c752c80 | 1919 | prompt_end_charpos = XINT (Ffield_beginning (make_number (ZV), Qnil)); |
8e9968c6 | 1920 | |
279cf52c | 1921 | { |
8e9968c6 | 1922 | int prompt_end_bytepos; |
279cf52c GM |
1923 | prompt_end_bytepos = CHAR_TO_BYTE (prompt_end_charpos); |
1924 | i = ZV - prompt_end_charpos; | |
1925 | i_byte = ZV_BYTE - prompt_end_bytepos; | |
1926 | } | |
f927c5ae JB |
1927 | |
1928 | /* If completion finds next char not unique, | |
b278606c | 1929 | consider adding a space or a hyphen. */ |
f927c5ae JB |
1930 | if (i == XSTRING (completion)->size) |
1931 | { | |
b278606c | 1932 | GCPRO1 (completion); |
7c752c80 | 1933 | tem = Ftry_completion (concat2 (Ffield_string (make_number (ZV)), build_string (" ")), |
f927c5ae JB |
1934 | Vminibuffer_completion_table, |
1935 | Vminibuffer_completion_predicate); | |
b278606c BF |
1936 | UNGCPRO; |
1937 | ||
7510b296 | 1938 | if (STRINGP (tem)) |
f927c5ae JB |
1939 | completion = tem; |
1940 | else | |
1941 | { | |
b278606c BF |
1942 | GCPRO1 (completion); |
1943 | tem = | |
7c752c80 | 1944 | Ftry_completion (concat2 (Ffield_string (make_number (ZV)), build_string ("-")), |
b278606c BF |
1945 | Vminibuffer_completion_table, |
1946 | Vminibuffer_completion_predicate); | |
1947 | UNGCPRO; | |
1948 | ||
7510b296 | 1949 | if (STRINGP (tem)) |
f927c5ae JB |
1950 | completion = tem; |
1951 | } | |
1952 | } | |
1953 | ||
1954 | /* Now find first word-break in the stuff found by completion. | |
1955 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
1956 | { |
1957 | int len, c; | |
54643b2c | 1958 | int bytes = STRING_BYTES (XSTRING (completion)); |
d50a3d2a | 1959 | completion_string = XSTRING (completion)->data; |
fc932ac6 | 1960 | for (; i_byte < STRING_BYTES (XSTRING (completion)); i_byte += len, i++) |
d50a3d2a | 1961 | { |
af2b7cd5 | 1962 | c = STRING_CHAR_AND_LENGTH (completion_string + i_byte, |
54643b2c | 1963 | bytes - i_byte, |
d50a3d2a KH |
1964 | len); |
1965 | if (SYNTAX (c) != Sword) | |
1966 | { | |
af2b7cd5 RS |
1967 | i_byte += len; |
1968 | i++; | |
d50a3d2a KH |
1969 | break; |
1970 | } | |
1971 | } | |
1972 | } | |
f927c5ae JB |
1973 | |
1974 | /* If got no characters, print help for user. */ | |
1975 | ||
8e9968c6 | 1976 | if (i == ZV - prompt_end_charpos) |
f927c5ae | 1977 | { |
739cc391 | 1978 | if (!NILP (Vcompletion_auto_help)) |
f927c5ae JB |
1979 | Fminibuffer_completion_help (); |
1980 | return Qnil; | |
1981 | } | |
1982 | ||
1983 | /* Otherwise insert in minibuffer the chars we got */ | |
1984 | ||
98cbb9a3 | 1985 | Fdelete_field (make_number (ZV)); |
af2b7cd5 | 1986 | insert_from_string (completion, 0, 0, i, i_byte, 1); |
f927c5ae JB |
1987 | return Qt; |
1988 | } | |
1989 | \f | |
1990 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
1991 | 1, 1, 0, | |
2dc2b736 | 1992 | "Display the list of completions, COMPLETIONS, using `standard-output'.\n\ |
f927c5ae | 1993 | Each element may be just a symbol or string\n\ |
2d7e41fe RS |
1994 | or may be a list of two strings to be printed as if concatenated.\n\ |
1995 | `standard-output' must be a buffer.\n\ | |
5744fa7c RS |
1996 | The actual completion alternatives, as inserted, are given `mouse-face'\n\ |
1997 | properties of `highlight'.\n\ | |
1998 | At the end, this runs the normal hook `completion-setup-hook'.\n\ | |
2d7e41fe | 1999 | It can find the completion buffer in `standard-output'.") |
f927c5ae JB |
2000 | (completions) |
2001 | Lisp_Object completions; | |
2002 | { | |
dae36123 | 2003 | Lisp_Object tail, elt; |
f927c5ae | 2004 | register int i; |
2dc2b736 | 2005 | int column = 0; |
dae36123 | 2006 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 2007 | struct buffer *old = current_buffer; |
681f5af4 | 2008 | int first = 1; |
486cc7fb RS |
2009 | |
2010 | /* Note that (when it matters) every variable | |
dae36123 RS |
2011 | points to a non-string that is pointed to by COMPLETIONS, |
2012 | except for ELT. ELT can be pointing to a string | |
2013 | when terpri or Findent_to calls a change hook. */ | |
2014 | elt = Qnil; | |
2015 | GCPRO2 (completions, elt); | |
486cc7fb | 2016 | |
7510b296 | 2017 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 2018 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 2019 | |
56a98455 | 2020 | if (NILP (completions)) |
cfc736bf RS |
2021 | write_string ("There are no possible completions of what you have typed.", |
2022 | -1); | |
f927c5ae JB |
2023 | else |
2024 | { | |
2dc2b736 | 2025 | write_string ("Possible completions are:", -1); |
56a98455 | 2026 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 2027 | { |
ec067ec7 | 2028 | Lisp_Object tem, string; |
681f5af4 | 2029 | int length; |
47d7d104 | 2030 | Lisp_Object startpos, endpos; |
681f5af4 | 2031 | |
6bbd7a29 GM |
2032 | startpos = Qnil; |
2033 | ||
681f5af4 RS |
2034 | elt = Fcar (tail); |
2035 | /* Compute the length of this element. */ | |
2036 | if (CONSP (elt)) | |
2037 | { | |
49db96ce | 2038 | tem = XCAR (elt); |
681f5af4 | 2039 | CHECK_STRING (tem, 0); |
49db96ce | 2040 | length = XSTRING (tem)->size; |
681f5af4 | 2041 | |
49db96ce | 2042 | tem = Fcar (XCDR (elt)); |
681f5af4 | 2043 | CHECK_STRING (tem, 0); |
49db96ce | 2044 | length += XSTRING (tem)->size; |
681f5af4 RS |
2045 | } |
2046 | else | |
2047 | { | |
2048 | CHECK_STRING (elt, 0); | |
49db96ce | 2049 | length = XSTRING (elt)->size; |
681f5af4 RS |
2050 | } |
2051 | ||
2052 | /* This does a bad job for narrower than usual windows. | |
2053 | Sadly, the window it will appear in is not known | |
2054 | until after the text has been made. */ | |
2055 | ||
47d7d104 RS |
2056 | if (BUFFERP (Vstandard_output)) |
2057 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2058 | ||
681f5af4 RS |
2059 | /* If the previous completion was very wide, |
2060 | or we have two on this line already, | |
2061 | don't put another on the same line. */ | |
2062 | if (column > 33 || first | |
2063 | /* If this is really wide, don't put it second on a line. */ | |
13c67cc6 | 2064 | || (column > 0 && length > 45)) |
681f5af4 RS |
2065 | { |
2066 | Fterpri (Qnil); | |
2067 | column = 0; | |
2068 | } | |
2069 | /* Otherwise advance to column 35. */ | |
2070 | else | |
2dc2b736 | 2071 | { |
7510b296 | 2072 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
2073 | { |
2074 | tem = Findent_to (make_number (35), make_number (2)); | |
47d7d104 | 2075 | |
681f5af4 RS |
2076 | column = XINT (tem); |
2077 | } | |
2dc2b736 RS |
2078 | else |
2079 | { | |
2080 | do | |
2081 | { | |
2082 | write_string (" ", -1); | |
2083 | column++; | |
2084 | } | |
2085 | while (column < 35); | |
2086 | } | |
2087 | } | |
681f5af4 | 2088 | |
47d7d104 RS |
2089 | if (BUFFERP (Vstandard_output)) |
2090 | { | |
2091 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2092 | Fset_text_properties (startpos, endpos, | |
2093 | Qnil, Vstandard_output); | |
2094 | } | |
2095 | ||
ec067ec7 | 2096 | /* Output this element. |
9404446f | 2097 | If necessary, convert it to unibyte or to multibyte first. */ |
f927c5ae | 2098 | if (CONSP (elt)) |
ec067ec7 | 2099 | string = Fcar (elt); |
f927c5ae | 2100 | else |
ec067ec7 RS |
2101 | string = elt; |
2102 | if (NILP (current_buffer->enable_multibyte_characters) | |
2103 | && STRING_MULTIBYTE (string)) | |
2104 | string = Fstring_make_unibyte (string); | |
9404446f RS |
2105 | else if (!NILP (current_buffer->enable_multibyte_characters) |
2106 | && !STRING_MULTIBYTE (string)) | |
2107 | string = Fstring_make_multibyte (string); | |
5744fa7c RS |
2108 | |
2109 | if (BUFFERP (Vstandard_output)) | |
2110 | { | |
4b37311e | 2111 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c RS |
2112 | |
2113 | Fprinc (string, Qnil); | |
2114 | ||
4b37311e | 2115 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); |
5744fa7c | 2116 | |
4b37311e | 2117 | Fput_text_property (startpos, endpos, |
5744fa7c RS |
2118 | Qmouse_face, intern ("highlight"), |
2119 | Vstandard_output); | |
2120 | } | |
2121 | else | |
2122 | { | |
2123 | Fprinc (string, Qnil); | |
2124 | } | |
ec067ec7 RS |
2125 | |
2126 | /* Output the annotation for this element. */ | |
2127 | if (CONSP (elt)) | |
4b37311e RS |
2128 | { |
2129 | if (BUFFERP (Vstandard_output)) | |
2130 | { | |
2131 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2132 | ||
2133 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2134 | ||
2135 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
2136 | ||
2137 | Fset_text_properties (startpos, endpos, Qnil, | |
2138 | Vstandard_output); | |
2139 | } | |
2140 | else | |
2141 | { | |
2142 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
2143 | } | |
2144 | } | |
2145 | ||
681f5af4 | 2146 | |
ec067ec7 | 2147 | /* Update COLUMN for what we have output. */ |
681f5af4 RS |
2148 | column += length; |
2149 | ||
2150 | /* If output is to a buffer, recompute COLUMN in a way | |
2151 | that takes account of character widths. */ | |
2152 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 2153 | { |
681f5af4 RS |
2154 | tem = Fcurrent_column (); |
2155 | column = XINT (tem); | |
2dc2b736 | 2156 | } |
681f5af4 RS |
2157 | |
2158 | first = 0; | |
f927c5ae JB |
2159 | } |
2160 | } | |
2dc2b736 | 2161 | |
486cc7fb RS |
2162 | UNGCPRO; |
2163 | ||
7510b296 | 2164 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
2165 | set_buffer_internal (old); |
2166 | ||
cfc736bf RS |
2167 | if (!NILP (Vrun_hooks)) |
2168 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
2169 | ||
f927c5ae JB |
2170 | return Qnil; |
2171 | } | |
2172 | ||
2173 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
2174 | 0, 0, "", | |
2175 | "Display a list of possible completions of the current minibuffer contents.") | |
2176 | () | |
2177 | { | |
2178 | Lisp_Object completions; | |
2179 | ||
2180 | message ("Making completion list..."); | |
7c752c80 | 2181 | completions = Fall_completions (Ffield_string (make_number (ZV)), |
f927c5ae | 2182 | Vminibuffer_completion_table, |
89a255dc RS |
2183 | Vminibuffer_completion_predicate, |
2184 | Qt); | |
39e98b38 | 2185 | clear_message (1, 0); |
f927c5ae | 2186 | |
56a98455 | 2187 | if (NILP (completions)) |
f927c5ae JB |
2188 | { |
2189 | bitch_at_user (); | |
2190 | temp_echo_area_glyphs (" [No completions]"); | |
2191 | } | |
2192 | else | |
2193 | internal_with_output_to_temp_buffer ("*Completions*", | |
2194 | Fdisplay_completion_list, | |
2195 | Fsort (completions, Qstring_lessp)); | |
2196 | return Qnil; | |
2197 | } | |
2198 | \f | |
2199 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
2200 | "Terminate minibuffer input.") | |
2201 | () | |
2202 | { | |
7510b296 | 2203 | if (INTEGERP (last_command_char)) |
dab3ab3c | 2204 | internal_self_insert (XINT (last_command_char), 0); |
f927c5ae JB |
2205 | else |
2206 | bitch_at_user (); | |
2207 | ||
6bbd7a29 | 2208 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2209 | } |
2210 | ||
2211 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
2212 | "Terminate this minibuffer argument.") | |
2213 | () | |
2214 | { | |
6bbd7a29 | 2215 | return Fthrow (Qexit, Qnil); |
f927c5ae JB |
2216 | } |
2217 | ||
2218 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
2219 | "Return current depth of activations of minibuffer, a nonnegative integer.") | |
2220 | () | |
2221 | { | |
2222 | return make_number (minibuf_level); | |
2223 | } | |
2224 | ||
37e9a934 KH |
2225 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
2226 | "Return the prompt string of the currently-active minibuffer.\n\ | |
2227 | If no minibuffer is active, return nil.") | |
2228 | () | |
2229 | { | |
4d04c1f1 | 2230 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
2231 | } |
2232 | ||
f927c5ae | 2233 | \f |
2d955a50 RS |
2234 | /* Temporarily display the string M at the end of the current |
2235 | minibuffer contents. This is used to display things like | |
2236 | "[No Match]" when the user requests a completion for a prefix | |
2237 | that has no possible completions, and other quick, unobtrusive | |
2238 | messages. */ | |
2239 | ||
9d815fd9 | 2240 | void |
2d955a50 RS |
2241 | temp_echo_area_glyphs (m) |
2242 | char *m; | |
2243 | { | |
2244 | int osize = ZV; | |
a9c26562 | 2245 | int osize_byte = ZV_BYTE; |
2d955a50 | 2246 | int opoint = PT; |
a9c26562 | 2247 | int opoint_byte = PT_BYTE; |
2d955a50 RS |
2248 | Lisp_Object oinhibit; |
2249 | oinhibit = Vinhibit_quit; | |
2250 | ||
2251 | /* Clear out any old echo-area message to make way for our new thing. */ | |
2252 | message (0); | |
2253 | ||
a9c26562 | 2254 | SET_PT_BOTH (osize, osize_byte); |
2d955a50 | 2255 | insert_string (m); |
a9c26562 | 2256 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2257 | Vinhibit_quit = Qt; |
2258 | Fsit_for (make_number (2), Qnil, Qnil); | |
bc69581b | 2259 | del_range_both (osize, osize_byte, ZV, ZV_BYTE, 1); |
a9c26562 | 2260 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2261 | if (!NILP (Vquit_flag)) |
2262 | { | |
2263 | Vquit_flag = Qnil; | |
2264 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
2265 | } | |
2266 | Vinhibit_quit = oinhibit; | |
2267 | } | |
2268 | ||
2269 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
2270 | 1, 1, 0, | |
2271 | "Temporarily display STRING at the end of the minibuffer.\n\ | |
2272 | The text is displayed for two seconds,\n\ | |
2273 | or until the next input event arrives, whichever comes first.") | |
2274 | (string) | |
2275 | Lisp_Object string; | |
2276 | { | |
2277 | temp_echo_area_glyphs (XSTRING (string)->data); | |
2278 | return Qnil; | |
2279 | } | |
2280 | \f | |
9d815fd9 | 2281 | void |
f927c5ae JB |
2282 | init_minibuf_once () |
2283 | { | |
2284 | Vminibuffer_list = Qnil; | |
2285 | staticpro (&Vminibuffer_list); | |
2286 | } | |
2287 | ||
9d815fd9 | 2288 | void |
f927c5ae JB |
2289 | syms_of_minibuf () |
2290 | { | |
2291 | minibuf_level = 0; | |
4d04c1f1 KH |
2292 | minibuf_prompt = Qnil; |
2293 | staticpro (&minibuf_prompt); | |
2294 | ||
2295 | minibuf_save_list = Qnil; | |
2296 | staticpro (&minibuf_save_list); | |
f927c5ae | 2297 | |
719b4a40 RS |
2298 | Qread_file_name_internal = intern ("read-file-name-internal"); |
2299 | staticpro (&Qread_file_name_internal); | |
2300 | ||
e5d4686b RS |
2301 | Qminibuffer_default = intern ("minibuffer-default"); |
2302 | staticpro (&Qminibuffer_default); | |
2303 | Fset (Qminibuffer_default, Qnil); | |
2304 | ||
f927c5ae JB |
2305 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
2306 | staticpro (&Qminibuffer_completion_table); | |
2307 | ||
2308 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
2309 | staticpro (&Qminibuffer_completion_confirm); | |
2310 | ||
2311 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
2312 | staticpro (&Qminibuffer_completion_predicate); | |
2313 | ||
1e00c2ff KH |
2314 | staticpro (&last_exact_completion); |
2315 | last_exact_completion = Qnil; | |
2316 | ||
f927c5ae JB |
2317 | staticpro (&last_minibuf_string); |
2318 | last_minibuf_string = Qnil; | |
2319 | ||
2320 | Quser_variable_p = intern ("user-variable-p"); | |
2321 | staticpro (&Quser_variable_p); | |
2322 | ||
770970cb RS |
2323 | Qminibuffer_history = intern ("minibuffer-history"); |
2324 | staticpro (&Qminibuffer_history); | |
f927c5ae | 2325 | |
406e55df RS |
2326 | Qbuffer_name_history = intern ("buffer-name-history"); |
2327 | staticpro (&Qbuffer_name_history); | |
33d0a17f | 2328 | Fset (Qbuffer_name_history, Qnil); |
406e55df | 2329 | |
5c781212 RS |
2330 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
2331 | staticpro (&Qminibuffer_setup_hook); | |
2332 | ||
177aecf9 KH |
2333 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
2334 | staticpro (&Qminibuffer_exit_hook); | |
2335 | ||
77aa8edf RS |
2336 | Qhistory_length = intern ("history-length"); |
2337 | staticpro (&Qhistory_length); | |
2338 | ||
cee54539 KH |
2339 | Qcurrent_input_method = intern ("current-input-method"); |
2340 | staticpro (&Qcurrent_input_method); | |
2341 | ||
2342 | Qactivate_input_method = intern ("activate-input-method"); | |
2343 | staticpro (&Qactivate_input_method); | |
2344 | ||
eebbfb01 KH |
2345 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2346 | "If this is non-nil, `read-buffer' does its work by calling this function."); | |
2347 | Vread_buffer_function = Qnil; | |
2348 | ||
5c781212 RS |
2349 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2350 | "Normal hook run just after entry to minibuffer."); | |
2351 | Vminibuffer_setup_hook = Qnil; | |
2352 | ||
177aecf9 KH |
2353 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2354 | "Normal hook run just after exit from minibuffer."); | |
2355 | Vminibuffer_exit_hook = Qnil; | |
2356 | ||
77aa8edf RS |
2357 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2358 | "*Maximum length for history lists before truncation takes place.\n\ | |
2359 | A number means that length; t means infinite. Truncation takes place\n\ | |
2360 | just after a new element is inserted. Setting the history-length\n\ | |
2361 | property of a history variable overrides this default."); | |
2362 | XSETFASTINT (Vhistory_length, 30); | |
2363 | ||
739cc391 | 2364 | DEFVAR_LISP ("completion-auto-help", &Vcompletion_auto_help, |
f927c5ae | 2365 | "*Non-nil means automatically provide help for invalid completion input."); |
739cc391 | 2366 | Vcompletion_auto_help = Qt; |
f927c5ae JB |
2367 | |
2368 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, | |
2369 | "Non-nil means don't consider case significant in completion."); | |
2370 | completion_ignore_case = 0; | |
2371 | ||
2372 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, | |
2373 | "*Non-nil means to allow minibuffer commands while in the minibuffer.\n\ | |
7e3e3ad1 | 2374 | This variable makes a difference whenever the minibuffer window is active."); |
f927c5ae JB |
2375 | enable_recursive_minibuffers = 0; |
2376 | ||
2377 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, | |
2378 | "Alist or obarray used for completion in the minibuffer.\n\ | |
2379 | This becomes the ALIST argument to `try-completion' and `all-completion'.\n\ | |
2380 | \n\ | |
2381 | The value may alternatively be a function, which is given three arguments:\n\ | |
2382 | STRING, the current buffer contents;\n\ | |
2383 | PREDICATE, the predicate for filtering possible matches;\n\ | |
2384 | CODE, which says what kind of things to do.\n\ | |
2385 | CODE can be nil, t or `lambda'.\n\ | |
2386 | nil means to return the best completion of STRING, or nil if there is none.\n\ | |
2387 | t means to return a list of all possible completions of STRING.\n\ | |
2388 | `lambda' means to return t if STRING is a valid completion as it stands."); | |
2389 | Vminibuffer_completion_table = Qnil; | |
2390 | ||
2391 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, | |
2392 | "Within call to `completing-read', this holds the PREDICATE argument."); | |
2393 | Vminibuffer_completion_predicate = Qnil; | |
2394 | ||
2395 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, | |
2396 | "Non-nil => demand confirmation of completion before exiting minibuffer."); | |
2397 | Vminibuffer_completion_confirm = Qnil; | |
2398 | ||
ccf330a6 RS |
2399 | DEFVAR_LISP ("minibuffer-completing-file-name", |
2400 | &Vminibuffer_completing_file_name, | |
2401 | "Non-nil means completing file names."); | |
2402 | Vminibuffer_completing_file_name = Qnil; | |
2403 | ||
f927c5ae JB |
2404 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, |
2405 | "Value that `help-form' takes on inside the minibuffer."); | |
2406 | Vminibuffer_help_form = Qnil; | |
2407 | ||
770970cb RS |
2408 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2409 | "History list symbol to add minibuffer values to.\n\ | |
2fa2413b RS |
2410 | Each string of minibuffer input, as it appears on exit from the minibuffer,\n\ |
2411 | is added with\n\ | |
770970cb RS |
2412 | (set minibuffer-history-variable\n\ |
2413 | (cons STRING (symbol-value minibuffer-history-variable)))"); | |
5a866662 | 2414 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb RS |
2415 | |
2416 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, | |
2417 | "Current position of redoing in the history list."); | |
2418 | Vminibuffer_history_position = Qnil; | |
2419 | ||
6a9ee000 | 2420 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
e98bcc1a RS |
2421 | "*Non-nil means entering the minibuffer raises the minibuffer's frame.\n\ |
2422 | Some uses of the echo area also raise that frame (since they use it too)."); | |
6a9ee000 RS |
2423 | minibuffer_auto_raise = 0; |
2424 | ||
42006772 RS |
2425 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2426 | "List of regexps that should restrict possible completions."); | |
2427 | Vcompletion_regexp_list = Qnil; | |
2428 | ||
c3421833 RS |
2429 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
2430 | &minibuffer_allow_text_properties, | |
e9cccb71 | 2431 | "Non-nil means `read-from-minibuffer' should not discard text properties.\n\ |
c3421833 RS |
2432 | This also affects `read-string', but it does not affect `read-minibuffer',\n\ |
2433 | `read-no-blanks-input', or any of the functions that do minibuffer input\n\ | |
2bfbde2b | 2434 | with completion; they always discard text properties."); |
c3421833 RS |
2435 | minibuffer_allow_text_properties = 0; |
2436 | ||
68313ed8 | 2437 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2438 | defsubr (&Sread_from_minibuffer); |
2439 | defsubr (&Seval_minibuffer); | |
2440 | defsubr (&Sread_minibuffer); | |
2441 | defsubr (&Sread_string); | |
2442 | defsubr (&Sread_command); | |
2443 | defsubr (&Sread_variable); | |
2444 | defsubr (&Sread_buffer); | |
2445 | defsubr (&Sread_no_blanks_input); | |
2446 | defsubr (&Sminibuffer_depth); | |
37e9a934 | 2447 | defsubr (&Sminibuffer_prompt); |
f927c5ae JB |
2448 | |
2449 | defsubr (&Stry_completion); | |
2450 | defsubr (&Sall_completions); | |
2451 | defsubr (&Scompleting_read); | |
2452 | defsubr (&Sminibuffer_complete); | |
2453 | defsubr (&Sminibuffer_complete_word); | |
2454 | defsubr (&Sminibuffer_complete_and_exit); | |
2455 | defsubr (&Sdisplay_completion_list); | |
2456 | defsubr (&Sminibuffer_completion_help); | |
2457 | ||
2458 | defsubr (&Sself_insert_and_exit); | |
2459 | defsubr (&Sexit_minibuffer); | |
2460 | ||
2d955a50 | 2461 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2462 | } |
2463 | ||
9d815fd9 | 2464 | void |
f927c5ae JB |
2465 | keys_of_minibuf () |
2466 | { | |
2467 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2468 | "abort-recursive-edit"); | |
2469 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2470 | "exit-minibuffer"); | |
2471 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2472 | "exit-minibuffer"); | |
2473 | ||
2474 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('g'), | |
2475 | "abort-recursive-edit"); | |
2476 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('m'), | |
2477 | "exit-minibuffer"); | |
2478 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('j'), | |
2479 | "exit-minibuffer"); | |
2480 | ||
2481 | initial_define_key (Vminibuffer_local_ns_map, ' ', | |
2482 | "exit-minibuffer"); | |
2483 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2484 | "exit-minibuffer"); | |
2485 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2486 | "self-insert-and-exit"); | |
2487 | ||
2488 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('g'), | |
2489 | "abort-recursive-edit"); | |
2490 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('m'), | |
2491 | "exit-minibuffer"); | |
2492 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('j'), | |
2493 | "exit-minibuffer"); | |
2494 | ||
2495 | initial_define_key (Vminibuffer_local_completion_map, '\t', | |
2496 | "minibuffer-complete"); | |
2497 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2498 | "minibuffer-complete-word"); | |
2499 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2500 | "minibuffer-completion-help"); | |
2501 | ||
2502 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('g'), | |
2503 | "abort-recursive-edit"); | |
2504 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), | |
2505 | "minibuffer-complete-and-exit"); | |
2506 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2507 | "minibuffer-complete-and-exit"); | |
2508 | initial_define_key (Vminibuffer_local_must_match_map, '\t', | |
2509 | "minibuffer-complete"); | |
2510 | initial_define_key (Vminibuffer_local_must_match_map, ' ', | |
2511 | "minibuffer-complete-word"); | |
2512 | initial_define_key (Vminibuffer_local_must_match_map, '?', | |
2513 | "minibuffer-completion-help"); | |
2514 | } |