Commit | Line | Data |
---|---|---|
f927c5ae | 1 | /* Minibuffer input and completion. |
6801b300 RS |
2 | Copyright (C) 1985, 1986, 1993, 1994, 1995, 1996, 1997 |
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> |
f927c5ae JB |
24 | #include "lisp.h" |
25 | #include "commands.h" | |
26 | #include "buffer.h" | |
d50a3d2a | 27 | #include "charset.h" |
f927c5ae | 28 | #include "dispextern.h" |
ff11dfa1 | 29 | #include "frame.h" |
f927c5ae JB |
30 | #include "window.h" |
31 | #include "syntax.h" | |
5221fd63 | 32 | #include "keyboard.h" |
f927c5ae JB |
33 | |
34 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
35 | ||
a4e71d81 KH |
36 | extern int quit_char; |
37 | ||
f927c5ae | 38 | /* List of buffers for use as minibuffers. |
4d04c1f1 KH |
39 | The first element of the list is used for the outermost minibuffer |
40 | invocation, the next element is used for a recursive minibuffer | |
41 | invocation, etc. The list is extended at the end as deeper | |
42 | minibuffer recursions are encountered. */ | |
f927c5ae JB |
43 | Lisp_Object Vminibuffer_list; |
44 | ||
4d04c1f1 KH |
45 | /* Data to remember during recursive minibuffer invocations */ |
46 | Lisp_Object minibuf_save_list; | |
f927c5ae JB |
47 | |
48 | /* Depth in minibuffer invocations. */ | |
49 | int minibuf_level; | |
50 | ||
77aa8edf | 51 | /* Nonzero means display completion help for invalid input. */ |
f927c5ae JB |
52 | int auto_help; |
53 | ||
77aa8edf RS |
54 | /* The maximum length of a minibuffer history. */ |
55 | Lisp_Object Qhistory_length, Vhistory_length; | |
56 | ||
b278606c | 57 | /* Fread_minibuffer leaves the input here as a string. */ |
f927c5ae JB |
58 | Lisp_Object last_minibuf_string; |
59 | ||
60 | /* Nonzero means let functions called when within a minibuffer | |
61 | invoke recursive minibuffers (to read arguments, or whatever) */ | |
62 | int enable_recursive_minibuffers; | |
63 | ||
c3421833 RS |
64 | /* Nonzero means don't ignore text properties |
65 | in Fread_from_minibuffer. */ | |
66 | int minibuffer_allow_text_properties; | |
67 | ||
f927c5ae JB |
68 | /* help-form is bound to this while in the minibuffer. */ |
69 | ||
70 | Lisp_Object Vminibuffer_help_form; | |
71 | ||
770970cb RS |
72 | /* Variable which is the history list to add minibuffer values to. */ |
73 | ||
74 | Lisp_Object Vminibuffer_history_variable; | |
75 | ||
76 | /* Current position in the history list (adjusted by M-n and M-p). */ | |
77 | ||
78 | Lisp_Object Vminibuffer_history_position; | |
79 | ||
80 | Lisp_Object Qminibuffer_history; | |
81 | ||
719b4a40 RS |
82 | Lisp_Object Qread_file_name_internal; |
83 | ||
177aecf9 | 84 | /* Normal hooks for entry to and exit from minibuffer. */ |
5c781212 RS |
85 | |
86 | Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook; | |
177aecf9 | 87 | Lisp_Object Qminibuffer_exit_hook, Vminibuffer_exit_hook; |
5c781212 | 88 | |
f927c5ae JB |
89 | /* Nonzero means completion ignores case. */ |
90 | ||
91 | int completion_ignore_case; | |
92 | ||
42006772 RS |
93 | /* List of regexps that should restrict possible completions. */ |
94 | ||
95 | Lisp_Object Vcompletion_regexp_list; | |
96 | ||
6a9ee000 RS |
97 | /* Nonzero means raise the minibuffer frame when the minibuffer |
98 | is entered. */ | |
99 | ||
100 | int minibuffer_auto_raise; | |
101 | ||
f927c5ae JB |
102 | /* If last completion attempt reported "Complete but not unique" |
103 | then this is the string completed then; otherwise this is nil. */ | |
104 | ||
105 | static Lisp_Object last_exact_completion; | |
106 | ||
107 | Lisp_Object Quser_variable_p; | |
2cb6da5c | 108 | |
e5d4686b RS |
109 | Lisp_Object Qminibuffer_default; |
110 | ||
2cb6da5c RS |
111 | /* Non-nil means it is the window for C-M-v to scroll |
112 | when the minibuffer is selected. */ | |
113 | extern Lisp_Object Vminibuf_scroll_window; | |
30e13e56 RS |
114 | |
115 | extern Lisp_Object Voverriding_local_map; | |
cee54539 KH |
116 | |
117 | Lisp_Object Qcurrent_input_method, Qactivate_input_method; | |
118 | ||
f927c5ae | 119 | \f |
89fdc4a0 KH |
120 | /* Put minibuf on currently selected frame's minibuffer. |
121 | We do this whenever the user starts a new minibuffer | |
122 | or when a minibuffer exits. */ | |
123 | ||
124 | void | |
125 | choose_minibuf_frame () | |
126 | { | |
127 | if (selected_frame != 0 | |
128 | && !EQ (minibuf_window, selected_frame->minibuffer_window)) | |
129 | { | |
130 | /* I don't think that any frames may validly have a null minibuffer | |
131 | window anymore. */ | |
132 | if (NILP (selected_frame->minibuffer_window)) | |
133 | abort (); | |
134 | ||
135 | Fset_window_buffer (selected_frame->minibuffer_window, | |
136 | XWINDOW (minibuf_window)->buffer); | |
137 | minibuf_window = selected_frame->minibuffer_window; | |
138 | } | |
914860c2 RS |
139 | |
140 | /* Make sure no other frame has a minibuffer as its selected window, | |
141 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
142 | confusing. Only allow the selected frame to do this, |
143 | and that only if the minibuffer is active. */ | |
914860c2 RS |
144 | { |
145 | Lisp_Object tail, frame; | |
146 | ||
147 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 RS |
148 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
149 | && !(XFRAME (frame) == selected_frame | |
150 | && minibuf_level > 0)) | |
914860c2 RS |
151 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
152 | } | |
89fdc4a0 | 153 | } |
68313ed8 | 154 | |
0c94f256 RS |
155 | Lisp_Object |
156 | choose_minibuf_frame_1 (ignore) | |
157 | Lisp_Object ignore; | |
158 | { | |
159 | choose_minibuf_frame (); | |
160 | return Qnil; | |
161 | } | |
162 | ||
68313ed8 RS |
163 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
164 | Sset_minibuffer_window, 1, 1, 0, | |
165 | "Specify which minibuffer window to use for the minibuffer.\n\ | |
166 | This effects where the minibuffer is displayed if you put text in it\n\ | |
167 | without invoking the usual minibuffer commands.") | |
168 | (window) | |
169 | Lisp_Object window; | |
170 | { | |
171 | CHECK_WINDOW (window, 1); | |
172 | if (! MINI_WINDOW_P (XWINDOW (window))) | |
173 | error ("Window is not a minibuffer window"); | |
174 | ||
175 | minibuf_window = window; | |
176 | ||
177 | return window; | |
178 | } | |
179 | ||
89fdc4a0 | 180 | \f |
f927c5ae JB |
181 | /* Actual minibuffer invocation. */ |
182 | ||
e5d4686b | 183 | static void read_minibuf_unwind (); |
f927c5ae | 184 | Lisp_Object get_minibuffer (); |
e5d4686b | 185 | static Lisp_Object read_minibuf (); |
f927c5ae | 186 | |
770970cb | 187 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
85b5fe07 | 188 | (a string), putting point minus BACKUP_N chars from the end of INITIAL, |
770970cb | 189 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 190 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
191 | |
192 | Normally return the result as a string (the text that was read), | |
3ab14176 | 193 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
194 | If HISTVAR is given, save the value read on that history only if it doesn't |
195 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 196 | the list as the string that was read. |
770970cb | 197 | |
c3421833 RS |
198 | DEFALT specifies te default value for the sake of history commands. |
199 | ||
cee54539 KH |
200 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
201 | ||
202 | if INHERIT_INPUT_METHOD is nonzeor, the minibuffer inherit the | |
203 | current input method. */ | |
e5d4686b RS |
204 | |
205 | static Lisp_Object | |
206 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 207 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
208 | Lisp_Object map; |
209 | Lisp_Object initial; | |
210 | Lisp_Object prompt; | |
5061d9c3 | 211 | Lisp_Object backup_n; |
f927c5ae | 212 | int expflag; |
770970cb RS |
213 | Lisp_Object histvar; |
214 | Lisp_Object histpos; | |
e5d4686b | 215 | Lisp_Object defalt; |
cee54539 | 216 | int inherit_input_method; |
f927c5ae | 217 | { |
00a34088 | 218 | Lisp_Object val; |
f927c5ae | 219 | int count = specpdl_ptr - specpdl; |
cee54539 KH |
220 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
221 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 222 | Lisp_Object enable_multibyte; |
00a34088 | 223 | |
e5d4686b RS |
224 | specbind (Qminibuffer_default, defalt); |
225 | ||
08f7d623 | 226 | single_kboard_state (); |
718d3251 | 227 | |
00a34088 | 228 | val = Qnil; |
57ceaa8a | 229 | ambient_dir = current_buffer->directory; |
cee54539 | 230 | input_method = Qnil; |
c75000c7 | 231 | enable_multibyte = Qnil; |
57ceaa8a | 232 | |
00a34088 RS |
233 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
234 | store them away before we can GC. Don't need to protect | |
235 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 236 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 237 | |
7510b296 | 238 | if (!STRINGP (prompt)) |
f927c5ae JB |
239 | prompt = build_string (""); |
240 | ||
f927c5ae | 241 | if (!enable_recursive_minibuffers |
be15a518 RS |
242 | && minibuf_level > 0) |
243 | { | |
244 | if (EQ (selected_window, minibuf_window)) | |
245 | error ("Command attempted to use minibuffer while in minibuffer"); | |
246 | else | |
247 | /* If we're in another window, cancel the minibuffer that's active. */ | |
248 | Fthrow (Qexit, | |
249 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
250 | } | |
f927c5ae | 251 | |
748dc60a | 252 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 253 | |
c5b6b680 RS |
254 | choose_minibuf_frame (); |
255 | ||
0c94f256 RS |
256 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
257 | ||
f927c5ae | 258 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
259 | Fcurrent_window_configuration (Qnil)); |
260 | ||
ff11dfa1 JB |
261 | /* If the minibuffer window is on a different frame, save that |
262 | frame's configuration too. */ | |
75f00e72 | 263 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
ff11dfa1 | 264 | if (XFRAME (mini_frame) != selected_frame) |
5061d9c3 RS |
265 | record_unwind_protect (Fset_window_configuration, |
266 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
267 | |
268 | /* If the minibuffer is on an iconified or invisible frame, | |
269 | make it visible now. */ | |
270 | Fmake_frame_visible (mini_frame); | |
271 | ||
6a9ee000 RS |
272 | if (minibuffer_auto_raise) |
273 | Fraise_frame (mini_frame); | |
f927c5ae | 274 | |
748dc60a RS |
275 | /* We have to do this after saving the window configuration |
276 | since that is what restores the current buffer. */ | |
277 | ||
278 | /* Arrange to restore a number of minibuffer-related variables. | |
279 | We could bind each variable separately, but that would use lots of | |
280 | specpdl slots. */ | |
281 | minibuf_save_list | |
282 | = Fcons (Voverriding_local_map, | |
283 | Fcons (minibuf_window, minibuf_save_list)); | |
284 | minibuf_save_list | |
285 | = Fcons (minibuf_prompt, | |
286 | Fcons (make_number (minibuf_prompt_width), | |
287 | Fcons (Vhelp_form, | |
288 | Fcons (Vcurrent_prefix_arg, | |
289 | Fcons (Vminibuffer_history_position, | |
290 | Fcons (Vminibuffer_history_variable, | |
291 | minibuf_save_list)))))); | |
292 | ||
293 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
294 | minibuf_level++; | |
295 | ||
296 | /* Now that we can restore all those variables, start changing them. */ | |
297 | ||
298 | minibuf_prompt_width = 0; /* xdisp.c puts in the right value. */ | |
299 | minibuf_prompt = Fcopy_sequence (prompt); | |
300 | Vminibuffer_history_position = histpos; | |
301 | Vminibuffer_history_variable = histvar; | |
302 | Vhelp_form = Vminibuffer_help_form; | |
303 | ||
cee54539 | 304 | if (inherit_input_method) |
c75000c7 RS |
305 | { |
306 | /* `current-input-method' is buffer local. So, remeber it in | |
307 | INPUT_METHOD before changing the current buffer. */ | |
308 | input_method = Fsymbol_value (Qcurrent_input_method); | |
309 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
310 | } | |
cee54539 | 311 | |
748dc60a RS |
312 | /* Switch to the minibuffer. */ |
313 | ||
4f69d8f6 RS |
314 | minibuffer = get_minibuffer (minibuf_level); |
315 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
316 | |
317 | /* The current buffer's default directory is usually the right thing | |
318 | for our minibuffer here. However, if you're typing a command at | |
319 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
320 | the current_buffer, so reset_buffer leaves buf's default | |
321 | directory unchanged. This is a bummer when you've just started | |
322 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
323 | you think of something better to do? Find another buffer with a | |
324 | better directory, and use that one instead. */ | |
748dc60a RS |
325 | if (STRINGP (ambient_dir)) |
326 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
327 | else |
328 | { | |
329 | Lisp_Object buf_list; | |
330 | ||
331 | for (buf_list = Vbuffer_alist; | |
332 | CONSP (buf_list); | |
333 | buf_list = XCONS (buf_list)->cdr) | |
334 | { | |
1e62748e | 335 | Lisp_Object other_buf; |
64a3a3c0 | 336 | |
1e62748e | 337 | other_buf = XCONS (XCONS (buf_list)->car)->cdr; |
7510b296 | 338 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
339 | { |
340 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
341 | break; | |
342 | } | |
343 | } | |
344 | } | |
345 | ||
0abbff13 KH |
346 | if (XFRAME (mini_frame) != selected_frame) |
347 | Fredirect_frame_focus (Fselected_frame (), mini_frame); | |
43bad991 | 348 | |
f927c5ae JB |
349 | Vminibuf_scroll_window = selected_window; |
350 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); | |
f927c5ae | 351 | Fselect_window (minibuf_window); |
5a866662 | 352 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 353 | |
748dc60a RS |
354 | Fmake_local_variable (Qprint_escape_newlines); |
355 | print_escape_newlines = 1; | |
356 | ||
357 | /* Erase the buffer. */ | |
59115a22 RS |
358 | { |
359 | int count1 = specpdl_ptr - specpdl; | |
360 | specbind (Qinhibit_read_only, Qt); | |
361 | Ferase_buffer (); | |
362 | unbind_to (count1, Qnil); | |
363 | } | |
364 | ||
748dc60a | 365 | /* Put in the initial input. */ |
56a98455 | 366 | if (!NILP (initial)) |
f927c5ae JB |
367 | { |
368 | Finsert (1, &initial); | |
7510b296 | 369 | if (!NILP (backup_n) && INTEGERP (backup_n)) |
d50a3d2a | 370 | Fgoto_char (make_number (PT + XFASTINT (backup_n))); |
f927c5ae JB |
371 | } |
372 | ||
f927c5ae | 373 | echo_area_glyphs = 0; |
73168c8b RS |
374 | /* This is in case the minibuffer-setup-hook calls Fsit_for. */ |
375 | previous_echo_glyphs = 0; | |
f927c5ae | 376 | |
f927c5ae JB |
377 | current_buffer->keymap = map; |
378 | ||
cee54539 | 379 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 380 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
381 | call1 (Qactivate_input_method, input_method); |
382 | ||
c75000c7 RS |
383 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
384 | if (inherit_input_method) | |
1faf29d4 | 385 | current_buffer->enable_multibyte_characters = enable_multibyte; |
c75000c7 | 386 | |
5c781212 RS |
387 | /* Run our hook, but not if it is empty. |
388 | (run-hooks would do nothing if it is empty, | |
748dc60a | 389 | but it's important to save time here in the usual case). */ |
92d3b06e RS |
390 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
391 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
392 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
393 | ||
f927c5ae JB |
394 | /* ??? MCC did redraw_screen here if switching screens. */ |
395 | recursive_edit_1 (); | |
396 | ||
397 | /* If cursor is on the minibuffer line, | |
398 | show the user we have exited by putting it in column 0. */ | |
ff11dfa1 | 399 | if ((FRAME_CURSOR_Y (selected_frame) |
f927c5ae JB |
400 | >= XFASTINT (XWINDOW (minibuf_window)->top)) |
401 | && !noninteractive) | |
402 | { | |
85462999 RS |
403 | FRAME_CURSOR_X (selected_frame) |
404 | = FRAME_LEFT_SCROLL_BAR_WIDTH (selected_frame); | |
ff11dfa1 | 405 | update_frame (selected_frame, 1, 1); |
f927c5ae JB |
406 | } |
407 | ||
c3421833 | 408 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 409 | Fset_buffer (minibuffer); |
c3421833 | 410 | val = make_buffer_string (1, Z, allow_props); |
5bb8cce1 | 411 | #if 0 /* make_buffer_string should handle the gap. */ |
f927c5ae | 412 | bcopy (GAP_END_ADDR, XSTRING (val)->data + GPT - BEG, Z - GPT); |
5bb8cce1 | 413 | #endif |
770970cb | 414 | |
b278606c BF |
415 | /* VAL is the string of minibuffer text. */ |
416 | last_minibuf_string = val; | |
417 | ||
3ab14176 | 418 | /* Add the value to the appropriate history list unless it is empty. */ |
9f6131cf | 419 | if (XSTRING (val)->size != 0 |
3ab14176 KH |
420 | && SYMBOLP (Vminibuffer_history_variable) |
421 | && ! EQ (XSYMBOL (Vminibuffer_history_variable)->value, Qunbound)) | |
422 | { | |
423 | /* If the caller wanted to save the value read on a history list, | |
424 | then do so if the value is not already the front of the list. */ | |
425 | Lisp_Object histval; | |
426 | histval = Fsymbol_value (Vminibuffer_history_variable); | |
427 | ||
428 | /* The value of the history variable must be a cons or nil. Other | |
429 | values are unacceptable. We silently ignore these values. */ | |
430 | if (NILP (histval) | |
9f6131cf RS |
431 | || (CONSP (histval) |
432 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
433 | { |
434 | Lisp_Object length; | |
435 | ||
436 | histval = Fcons (last_minibuf_string, histval); | |
437 | Fset (Vminibuffer_history_variable, histval); | |
438 | ||
439 | /* Truncate if requested. */ | |
440 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
441 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
442 | if (INTEGERP (length)) |
443 | { | |
444 | if (XINT (length) <= 0) | |
445 | Fset (Vminibuffer_history_variable, Qnil); | |
446 | else | |
447 | { | |
448 | Lisp_Object temp; | |
449 | ||
450 | temp = Fnthcdr (Fsub1 (length), histval); | |
451 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
452 | } | |
453 | } | |
77aa8edf | 454 | } |
9f6131cf RS |
455 | } |
456 | ||
457 | /* If Lisp form desired instead of string, parse it. */ | |
458 | if (expflag) | |
459 | { | |
460 | Lisp_Object expr_and_pos; | |
461 | unsigned char *p; | |
462 | ||
463 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); | |
464 | /* Ignore trailing whitespace; any other trailing junk is an error. */ | |
465 | for (p = XSTRING (val)->data + XINT (Fcdr (expr_and_pos)); *p; p++) | |
466 | if (*p != ' ' && *p != '\t' && *p != '\n') | |
467 | error ("Trailing garbage following expression"); | |
468 | val = Fcar (expr_and_pos); | |
3ab14176 KH |
469 | } |
470 | ||
00a34088 RS |
471 | /* The appropriate frame will get selected |
472 | in set-window-configuration. */ | |
473 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
474 | } |
475 | ||
476 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
477 | depth = 0 is the lowest allowed argument, and that is the value | |
478 | used for nonrecursive minibuffer invocations */ | |
479 | ||
480 | Lisp_Object | |
481 | get_minibuffer (depth) | |
482 | int depth; | |
483 | { | |
484 | Lisp_Object tail, num, buf; | |
9f6c23bc | 485 | char name[24]; |
f927c5ae JB |
486 | extern Lisp_Object nconc2 (); |
487 | ||
5a866662 | 488 | XSETFASTINT (num, depth); |
f927c5ae | 489 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 490 | if (NILP (tail)) |
f927c5ae JB |
491 | { |
492 | tail = Fcons (Qnil, Qnil); | |
493 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
494 | } | |
495 | buf = Fcar (tail); | |
56a98455 | 496 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
497 | { |
498 | sprintf (name, " *Minibuf-%d*", depth); | |
499 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
500 | |
501 | /* Although the buffer's name starts with a space, undo should be | |
502 | enabled in it. */ | |
503 | Fbuffer_enable_undo (buf); | |
504 | ||
f927c5ae JB |
505 | XCONS (tail)->car = buf; |
506 | } | |
507 | else | |
5956f71d | 508 | { |
6b3faad8 RS |
509 | int count = specpdl_ptr - specpdl; |
510 | ||
5956f71d | 511 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
512 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
513 | Fset_buffer (buf); | |
514 | Fkill_all_local_variables (); | |
515 | unbind_to (count, Qnil); | |
5956f71d | 516 | } |
64a3a3c0 | 517 | |
f927c5ae JB |
518 | return buf; |
519 | } | |
520 | ||
521 | /* This function is called on exiting minibuffer, whether normally or not, | |
522 | and it restores the current window, buffer, etc. */ | |
523 | ||
e5d4686b | 524 | static void |
43bad991 JB |
525 | read_minibuf_unwind (data) |
526 | Lisp_Object data; | |
f927c5ae | 527 | { |
c24e1160 | 528 | Lisp_Object old_deactivate_mark; |
59115a22 | 529 | Lisp_Object window; |
c24e1160 | 530 | |
0a1dd1c5 RS |
531 | /* We are exiting the minibuffer one way or the other, |
532 | so run the hook. */ | |
533 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
534 | && !NILP (Vrun_hooks)) | |
060ffec1 | 535 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 536 | |
f927c5ae | 537 | /* If this was a recursive minibuffer, |
59115a22 | 538 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 539 | minibuf_level--; |
f927c5ae | 540 | |
59115a22 RS |
541 | window = minibuf_window; |
542 | /* To keep things predictable, in case it matters, let's be in the minibuffer | |
543 | when we reset the relevant variables. */ | |
544 | Fset_buffer (XWINDOW (window)->buffer); | |
545 | ||
546 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
547 | minibuf_prompt = Fcar (minibuf_save_list); |
548 | minibuf_save_list = Fcdr (minibuf_save_list); | |
549 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
550 | minibuf_save_list = Fcdr (minibuf_save_list); | |
551 | Vhelp_form = Fcar (minibuf_save_list); | |
552 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 553 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
554 | minibuf_save_list = Fcdr (minibuf_save_list); |
555 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
556 | minibuf_save_list = Fcdr (minibuf_save_list); | |
557 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
558 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 559 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 560 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
561 | #if 0 |
562 | temp = Fcar (minibuf_save_list); | |
563 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
564 | minibuf_window = temp; | |
565 | #endif | |
30e13e56 | 566 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
567 | |
568 | /* Erase the minibuffer we were using at this level. */ | |
569 | { | |
570 | int count = specpdl_ptr - specpdl; | |
571 | /* Prevent error in erase-buffer. */ | |
572 | specbind (Qinhibit_read_only, Qt); | |
573 | old_deactivate_mark = Vdeactivate_mark; | |
574 | Ferase_buffer (); | |
575 | Vdeactivate_mark = old_deactivate_mark; | |
576 | unbind_to (count, Qnil); | |
577 | } | |
578 | ||
579 | /* Make sure minibuffer window is erased, not ignored. */ | |
580 | windows_or_buffers_changed++; | |
581 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 582 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
f927c5ae JB |
583 | } |
584 | \f | |
b9d721de JB |
585 | |
586 | /* This comment supplies the doc string for read-from-minibuffer, | |
587 | for make-docfile to see. We cannot put this in the real DEFUN | |
588 | due to limits in the Unix cpp. | |
589 | ||
cee54539 | 590 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
f927c5ae JB |
591 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
592 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string\n\ | |
593 | to be inserted into the minibuffer before reading input.\n\ | |
770970cb | 594 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input\n\ |
18fef111 | 595 | is STRING, but point is placed at position POSITION in the minibuffer.\n\ |
f927c5ae JB |
596 | Third arg KEYMAP is a keymap to use whilst reading;\n\ |
597 | if omitted or nil, the default is `minibuffer-local-map'.\n\ | |
598 | If fourth arg READ is non-nil, then interpret the result as a lisp object\n\ | |
599 | and return that object:\n\ | |
600 | in other words, do `(car (read-from-string INPUT-STRING))'\n\ | |
770970cb RS |
601 | Fifth arg HIST, if non-nil, specifies a history list\n\ |
602 | and optionally the initial position in the list.\n\ | |
603 | It can be a symbol, which is the history list variable to use,\n\ | |
604 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
605 | In that case, HISTVAR is the history list variable to use,\n\ | |
606 | and HISTPOS is the initial position (the position in the list\n\ | |
607 | which INITIAL-CONTENTS corresponds to).\n\ | |
e5d4686b RS |
608 | Positions are counted starting from 1 at the beginning of the list.\n\ |
609 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is used\n\ | |
610 | for history commands, and as the value to return if the user enters\n\ | |
611 | the empty string.\n\ | |
c8c15521 RS |
612 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
613 | the current input method and the setting of enable-multibyte-characters.\n\ | |
c3421833 RS |
614 | If the variable `minibuffer-allow-text-properties is non-nil,\n\ |
615 | then the string which is returned includes whatever text properties\n\ | |
cee54539 KH |
616 | were present in the minibuffer. Otherwise the value has no text properties.") |
617 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
618 | */ | |
b9d721de | 619 | |
cee54539 | 620 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
b9d721de | 621 | 0 /* See immediately above */) |
cee54539 | 622 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) |
e5d4686b | 623 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 624 | Lisp_Object inherit_input_method; |
f927c5ae JB |
625 | { |
626 | int pos = 0; | |
e5d4686b | 627 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
628 | struct gcpro gcpro1; |
629 | ||
770970cb | 630 | position = Qnil; |
f927c5ae JB |
631 | |
632 | CHECK_STRING (prompt, 0); | |
68e5a8a2 | 633 | if (!NILP (initial_contents)) |
f927c5ae | 634 | { |
7510b296 | 635 | if (CONSP (initial_contents)) |
770970cb | 636 | { |
68e5a8a2 RS |
637 | position = Fcdr (initial_contents); |
638 | initial_contents = Fcar (initial_contents); | |
770970cb | 639 | } |
68e5a8a2 | 640 | CHECK_STRING (initial_contents, 1); |
56a98455 | 641 | if (!NILP (position)) |
f927c5ae JB |
642 | { |
643 | CHECK_NUMBER (position, 0); | |
644 | /* Convert to distance from end of input. */ | |
18fef111 RS |
645 | if (XINT (position) < 1) |
646 | /* A number too small means the beginning of the string. */ | |
647 | pos = - XSTRING (initial_contents)->size; | |
648 | else | |
649 | pos = XINT (position) - 1 - XSTRING (initial_contents)->size; | |
f927c5ae JB |
650 | } |
651 | } | |
652 | ||
56a98455 | 653 | if (NILP (keymap)) |
f927c5ae JB |
654 | keymap = Vminibuffer_local_map; |
655 | else | |
b7df898e | 656 | keymap = get_keymap (keymap); |
770970cb | 657 | |
7510b296 | 658 | if (SYMBOLP (hist)) |
770970cb RS |
659 | { |
660 | histvar = hist; | |
661 | histpos = Qnil; | |
662 | } | |
663 | else | |
664 | { | |
665 | histvar = Fcar_safe (hist); | |
666 | histpos = Fcdr_safe (hist); | |
667 | } | |
668 | if (NILP (histvar)) | |
669 | histvar = Qminibuffer_history; | |
670 | if (NILP (histpos)) | |
5a866662 | 671 | XSETFASTINT (histpos, 0); |
770970cb | 672 | |
1d8d92f4 | 673 | GCPRO1 (default_value); |
e5d4686b RS |
674 | val = read_minibuf (keymap, initial_contents, prompt, |
675 | make_number (pos), !NILP (read), | |
c3421833 | 676 | histvar, histpos, default_value, |
cee54539 KH |
677 | minibuffer_allow_text_properties, |
678 | !NILP (inherit_input_method)); | |
e5d4686b RS |
679 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (default_value)) |
680 | val = default_value; | |
1d8d92f4 | 681 | UNGCPRO; |
e5d4686b | 682 | return val; |
f927c5ae JB |
683 | } |
684 | ||
685 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
686 | "Return a Lisp object read using the minibuffer.\n\ | |
687 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
688 | is a string to insert in the minibuffer before reading.") | |
689 | (prompt, initial_contents) | |
690 | Lisp_Object prompt, initial_contents; | |
691 | { | |
692 | CHECK_STRING (prompt, 0); | |
56a98455 | 693 | if (!NILP (initial_contents)) |
a1b4b084 | 694 | CHECK_STRING (initial_contents, 1); |
770970cb | 695 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 696 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 697 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
698 | } |
699 | ||
700 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
701 | "Return value of Lisp expression read using the minibuffer.\n\ | |
702 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
703 | is a string to insert in the minibuffer before reading.") | |
704 | (prompt, initial_contents) | |
705 | Lisp_Object prompt, initial_contents; | |
706 | { | |
707 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
708 | } | |
709 | ||
710 | /* Functions that use the minibuffer to read various things. */ | |
711 | ||
cee54539 | 712 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
f927c5ae | 713 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
80896ab4 RS |
714 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading.\n\ |
715 | The third arg HISTORY, if non-nil, specifies a history list\n\ | |
716 | and optionally the initial position in the list.\n\ | |
cee54539 | 717 | See `read-from-minibuffer' for details of HISTORY argument.\n\ |
c8c15521 RS |
718 | Fourth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
719 | the current input method and the setting of enable-multibyte-characters.") | |
cee54539 | 720 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 721 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 722 | Lisp_Object inherit_input_method; |
f927c5ae | 723 | { |
e5d4686b | 724 | return Fread_from_minibuffer (prompt, initial_input, Qnil, |
cee54539 KH |
725 | Qnil, history, default_value, |
726 | inherit_input_method); | |
f927c5ae JB |
727 | } |
728 | ||
cee54539 | 729 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
f927c5ae | 730 | "Args PROMPT and INIT, strings. Read a string from the terminal, not allowing blanks.\n\ |
cee54539 | 731 | Prompt with PROMPT, and provide INIT as an initial value of the input string.\n\ |
c8c15521 RS |
732 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
733 | the current input method and the setting of enable-multibyte-characters.") | |
cee54539 KH |
734 | (prompt, init, inherit_input_method) |
735 | Lisp_Object prompt, init, inherit_input_method; | |
f927c5ae JB |
736 | { |
737 | CHECK_STRING (prompt, 0); | |
56a98455 | 738 | if (! NILP (init)) |
f927c5ae JB |
739 | CHECK_STRING (init, 1); |
740 | ||
e5d4686b | 741 | return read_minibuf (Vminibuffer_local_ns_map, init, prompt, Qnil, |
cee54539 KH |
742 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
743 | !NILP (inherit_input_method)); | |
f927c5ae JB |
744 | } |
745 | ||
e5d4686b RS |
746 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
747 | "Read the name of a command and return as a symbol.\n\ | |
748 | Prompts with PROMPT. By default, return DEFAULT-VALUE.") | |
749 | (prompt, default_value) | |
750 | Lisp_Object prompt, default_value; | |
f927c5ae | 751 | { |
e5d4686b | 752 | return Fintern (Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, |
cee54539 | 753 | Qnil, Qnil, default_value, Qnil), |
f927c5ae JB |
754 | Qnil); |
755 | } | |
756 | ||
757 | #ifdef NOTDEF | |
758 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
759 | "One arg PROMPT, a string. Read the name of a function and return as a symbol.\n\ | |
760 | Prompts with PROMPT.") | |
761 | (prompt) | |
762 | Lisp_Object prompt; | |
763 | { | |
cee54539 | 764 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
765 | Qnil); |
766 | } | |
767 | #endif /* NOTDEF */ | |
768 | ||
e5d4686b RS |
769 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
770 | "Read the name of a user variable and return it as a symbol.\n\ | |
771 | Prompts with PROMPT. By default, return DEFAULT-VALUE.\n\ | |
f927c5ae | 772 | A user variable is one whose documentation starts with a `*' character.") |
e5d4686b RS |
773 | (prompt, default_value) |
774 | Lisp_Object prompt, default_value; | |
f927c5ae JB |
775 | { |
776 | return Fintern (Fcompleting_read (prompt, Vobarray, | |
e5d4686b | 777 | Quser_variable_p, Qt, |
cee54539 | 778 | Qnil, Qnil, default_value, Qnil), |
f927c5ae JB |
779 | Qnil); |
780 | } | |
781 | ||
782 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
783 | "One arg PROMPT, a string. Read the name of a buffer and return as a string.\n\ | |
784 | Prompts with PROMPT.\n\ | |
e5d4686b | 785 | Optional second arg DEF is value to return if user enters an empty line.\n\ |
f927c5ae JB |
786 | If optional third arg REQUIRE-MATCH is non-nil, only existing buffer names are allowed.") |
787 | (prompt, def, require_match) | |
788 | Lisp_Object prompt, def, require_match; | |
789 | { | |
790 | Lisp_Object tem; | |
791 | Lisp_Object args[3]; | |
f927c5ae | 792 | |
7510b296 | 793 | if (BUFFERP (def)) |
f927c5ae | 794 | def = XBUFFER (def)->name; |
56a98455 | 795 | if (!NILP (def)) |
f927c5ae JB |
796 | { |
797 | args[0] = build_string ("%s(default %s) "); | |
798 | args[1] = prompt; | |
799 | args[2] = def; | |
800 | prompt = Fformat (3, args); | |
801 | } | |
e5d4686b | 802 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, |
cee54539 | 803 | require_match, Qnil, Qnil, def, Qnil); |
f927c5ae JB |
804 | } |
805 | \f | |
806 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, | |
807 | "Return common substring of all completions of STRING in ALIST.\n\ | |
808 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
809 | All that match are compared together; the longest initial sequence\n\ | |
810 | common to all matches is returned as a string.\n\ | |
811 | If there is no match at all, nil is returned.\n\ | |
812 | For an exact match, t is returned.\n\ | |
813 | \n\ | |
814 | ALIST can be an obarray instead of an alist.\n\ | |
815 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
816 | \n\ | |
817 | ALIST can also be a function to do the completion itself.\n\ | |
818 | It receives three arguments: the values STRING, PREDICATE and nil.\n\ | |
819 | Whatever it returns becomes the value of `try-completion'.\n\ | |
820 | \n\ | |
821 | If optional third argument PREDICATE is non-nil,\n\ | |
822 | it is used to test each possible match.\n\ | |
823 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
824 | The argument given to PREDICATE is the alist element\n\ |
825 | or the symbol from the obarray.") | |
7efd36fc EN |
826 | (string, alist, predicate) |
827 | Lisp_Object string, alist, predicate; | |
f927c5ae JB |
828 | { |
829 | Lisp_Object bestmatch, tail, elt, eltstring; | |
830 | int bestmatchsize; | |
831 | int compare, matchsize; | |
56a98455 | 832 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
833 | int index, obsize; |
834 | int matchcount = 0; | |
835 | Lisp_Object bucket, zero, end, tem; | |
836 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
837 | ||
838 | CHECK_STRING (string, 0); | |
7510b296 | 839 | if (!list && !VECTORP (alist)) |
7efd36fc | 840 | return call3 (alist, string, predicate, Qnil); |
f927c5ae JB |
841 | |
842 | bestmatch = Qnil; | |
843 | ||
844 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
845 | tail = alist; | |
846 | if (! list) | |
847 | { | |
848 | index = 0; | |
849 | obsize = XVECTOR (alist)->size; | |
850 | bucket = XVECTOR (alist)->contents[index]; | |
851 | } | |
852 | ||
853 | while (1) | |
854 | { | |
855 | /* Get the next element of the alist or obarray. */ | |
856 | /* Exit the loop if the elements are all used up. */ | |
857 | /* elt gets the alist element or symbol. | |
858 | eltstring gets the name to check as a completion. */ | |
859 | ||
860 | if (list) | |
861 | { | |
56a98455 | 862 | if (NILP (tail)) |
f927c5ae JB |
863 | break; |
864 | elt = Fcar (tail); | |
865 | eltstring = Fcar (elt); | |
866 | tail = Fcdr (tail); | |
867 | } | |
868 | else | |
869 | { | |
870 | if (XFASTINT (bucket) != 0) | |
871 | { | |
872 | elt = bucket; | |
873 | eltstring = Fsymbol_name (elt); | |
874 | if (XSYMBOL (bucket)->next) | |
875 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
876 | else | |
5a866662 | 877 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
878 | } |
879 | else if (++index >= obsize) | |
880 | break; | |
881 | else | |
882 | { | |
883 | bucket = XVECTOR (alist)->contents[index]; | |
884 | continue; | |
885 | } | |
886 | } | |
887 | ||
888 | /* Is this element a possible completion? */ | |
889 | ||
7510b296 | 890 | if (STRINGP (eltstring) |
42006772 RS |
891 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
892 | && 0 > scmp (XSTRING (eltstring)->data, XSTRING (string)->data, | |
893 | XSTRING (string)->size)) | |
f927c5ae JB |
894 | { |
895 | /* Yes. */ | |
42006772 RS |
896 | Lisp_Object regexps; |
897 | Lisp_Object zero; | |
5a866662 | 898 | XSETFASTINT (zero, 0); |
42006772 RS |
899 | |
900 | /* Ignore this element if it fails to match all the regexps. */ | |
901 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
902 | regexps = XCONS (regexps)->cdr) | |
903 | { | |
904 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
905 | if (NILP (tem)) | |
906 | break; | |
907 | } | |
908 | if (CONSP (regexps)) | |
909 | continue; | |
910 | ||
f927c5ae JB |
911 | /* Ignore this element if there is a predicate |
912 | and the predicate doesn't like it. */ | |
913 | ||
7efd36fc | 914 | if (!NILP (predicate)) |
f927c5ae | 915 | { |
7efd36fc | 916 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
917 | tem = Fcommandp (elt); |
918 | else | |
919 | { | |
920 | GCPRO4 (tail, string, eltstring, bestmatch); | |
7efd36fc | 921 | tem = call1 (predicate, elt); |
f927c5ae JB |
922 | UNGCPRO; |
923 | } | |
56a98455 | 924 | if (NILP (tem)) continue; |
f927c5ae JB |
925 | } |
926 | ||
927 | /* Update computation of how much all possible completions match */ | |
928 | ||
929 | matchcount++; | |
56a98455 | 930 | if (NILP (bestmatch)) |
f927c5ae JB |
931 | bestmatch = eltstring, bestmatchsize = XSTRING (eltstring)->size; |
932 | else | |
933 | { | |
934 | compare = min (bestmatchsize, XSTRING (eltstring)->size); | |
935 | matchsize = scmp (XSTRING (bestmatch)->data, | |
936 | XSTRING (eltstring)->data, | |
937 | compare); | |
52b14ac0 JB |
938 | if (matchsize < 0) |
939 | matchsize = compare; | |
940 | if (completion_ignore_case) | |
941 | { | |
942 | /* If this is an exact match except for case, | |
943 | use it as the best match rather than one that is not an | |
944 | exact match. This way, we get the case pattern | |
945 | of the actual match. */ | |
946 | if ((matchsize == XSTRING (eltstring)->size | |
947 | && matchsize < XSTRING (bestmatch)->size) | |
948 | || | |
949 | /* If there is more than one exact match ignoring case, | |
950 | and one of them is exact including case, | |
951 | prefer that one. */ | |
952 | /* If there is no exact match ignoring case, | |
953 | prefer a match that does not change the case | |
954 | of the input. */ | |
955 | ((matchsize == XSTRING (eltstring)->size) | |
956 | == | |
957 | (matchsize == XSTRING (bestmatch)->size) | |
958 | && !bcmp (XSTRING (eltstring)->data, | |
959 | XSTRING (string)->data, XSTRING (string)->size) | |
960 | && bcmp (XSTRING (bestmatch)->data, | |
961 | XSTRING (string)->data, XSTRING (string)->size))) | |
962 | bestmatch = eltstring; | |
963 | } | |
964 | bestmatchsize = matchsize; | |
f927c5ae JB |
965 | } |
966 | } | |
967 | } | |
968 | ||
56a98455 | 969 | if (NILP (bestmatch)) |
f927c5ae | 970 | return Qnil; /* No completions found */ |
52b14ac0 JB |
971 | /* If we are ignoring case, and there is no exact match, |
972 | and no additional text was supplied, | |
973 | don't change the case of what the user typed. */ | |
974 | if (completion_ignore_case && bestmatchsize == XSTRING (string)->size | |
975 | && XSTRING (bestmatch)->size > bestmatchsize) | |
976 | return string; | |
977 | ||
978 | /* Return t if the supplied string is an exact match (counting case); | |
979 | it does not require any change to be made. */ | |
980 | if (matchcount == 1 && bestmatchsize == XSTRING (string)->size | |
981 | && !bcmp (XSTRING (bestmatch)->data, XSTRING (string)->data, | |
982 | bestmatchsize)) | |
f927c5ae JB |
983 | return Qt; |
984 | ||
5a866662 KH |
985 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
986 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
987 | return Fsubstring (bestmatch, zero, end); |
988 | } | |
989 | ||
990 | /* Compare exactly LEN chars of strings at S1 and S2, | |
991 | ignoring case if appropriate. | |
992 | Return -1 if strings match, | |
993 | else number of chars that match at the beginning. */ | |
994 | ||
829f7f7c | 995 | int |
f927c5ae | 996 | scmp (s1, s2, len) |
829f7f7c | 997 | register unsigned char *s1, *s2; |
f927c5ae JB |
998 | int len; |
999 | { | |
1000 | register int l = len; | |
d50a3d2a | 1001 | register unsigned char *start = s1; |
f927c5ae JB |
1002 | |
1003 | if (completion_ignore_case) | |
1004 | { | |
2e34157c | 1005 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) |
f927c5ae JB |
1006 | l--; |
1007 | } | |
1008 | else | |
1009 | { | |
1010 | while (l && *s1++ == *s2++) | |
1011 | l--; | |
1012 | } | |
1013 | if (l == 0) | |
1014 | return -1; | |
829f7f7c | 1015 | else |
d50a3d2a KH |
1016 | { |
1017 | int match = len - l; | |
1018 | ||
1019 | /* Now *--S1 is the unmatching byte. If it is in the middle of | |
1020 | multi-byte form, we must say that the multi-byte character | |
1021 | there doesn't match. */ | |
1022 | while (match && *--s1 >= 0xA0) match--; | |
1023 | return match; | |
1024 | } | |
f927c5ae JB |
1025 | } |
1026 | \f | |
89a255dc | 1027 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
f927c5ae JB |
1028 | "Search for partial matches to STRING in ALIST.\n\ |
1029 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
1030 | The value is a list of all the strings from ALIST that match.\n\ | |
89a255dc | 1031 | \n\ |
f927c5ae JB |
1032 | ALIST can be an obarray instead of an alist.\n\ |
1033 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
1034 | \n\ | |
1035 | ALIST can also be a function to do the completion itself.\n\ | |
1036 | It receives three arguments: the values STRING, PREDICATE and t.\n\ | |
1037 | Whatever it returns becomes the value of `all-completion'.\n\ | |
1038 | \n\ | |
1039 | If optional third argument PREDICATE is non-nil,\n\ | |
1040 | it is used to test each possible match.\n\ | |
1041 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
1042 | The argument given to PREDICATE is the alist element\n\ |
1043 | or the symbol from the obarray.\n\ | |
1044 | \n\ | |
1045 | If the optional fourth argument HIDE-SPACES is non-nil,\n\ | |
1046 | strings in ALIST that start with a space\n\ | |
1047 | are ignored unless STRING itself starts with a space.") | |
7efd36fc EN |
1048 | (string, alist, predicate, hide_spaces) |
1049 | Lisp_Object string, alist, predicate, hide_spaces; | |
f927c5ae JB |
1050 | { |
1051 | Lisp_Object tail, elt, eltstring; | |
1052 | Lisp_Object allmatches; | |
56a98455 | 1053 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
1054 | int index, obsize; |
1055 | Lisp_Object bucket, tem; | |
1056 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1057 | ||
1058 | CHECK_STRING (string, 0); | |
7510b296 | 1059 | if (!list && !VECTORP (alist)) |
f927c5ae | 1060 | { |
7efd36fc | 1061 | return call3 (alist, string, predicate, Qt); |
f927c5ae JB |
1062 | } |
1063 | allmatches = Qnil; | |
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) |
2cbaf886 | 1112 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
89a255dc | 1113 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 RS |
1114 | unless the input starts with space. */ |
1115 | && ((XSTRING (string)->size > 0 && XSTRING (string)->data[0] == ' ') | |
89a255dc RS |
1116 | || XSTRING (eltstring)->data[0] != ' ' |
1117 | || NILP (hide_spaces)) | |
2cbaf886 RS |
1118 | && 0 > scmp (XSTRING (eltstring)->data, XSTRING (string)->data, |
1119 | XSTRING (string)->size)) | |
f927c5ae JB |
1120 | { |
1121 | /* Yes. */ | |
42006772 RS |
1122 | Lisp_Object regexps; |
1123 | Lisp_Object zero; | |
5a866662 | 1124 | XSETFASTINT (zero, 0); |
42006772 RS |
1125 | |
1126 | /* Ignore this element if it fails to match all the regexps. */ | |
1127 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1128 | regexps = XCONS (regexps)->cdr) | |
1129 | { | |
1130 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
1131 | if (NILP (tem)) | |
1132 | break; | |
1133 | } | |
1134 | if (CONSP (regexps)) | |
1135 | continue; | |
1136 | ||
f927c5ae JB |
1137 | /* Ignore this element if there is a predicate |
1138 | and the predicate doesn't like it. */ | |
1139 | ||
7efd36fc | 1140 | if (!NILP (predicate)) |
f927c5ae | 1141 | { |
7efd36fc | 1142 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1143 | tem = Fcommandp (elt); |
1144 | else | |
1145 | { | |
1146 | GCPRO4 (tail, eltstring, allmatches, string); | |
7efd36fc | 1147 | tem = call1 (predicate, elt); |
f927c5ae JB |
1148 | UNGCPRO; |
1149 | } | |
56a98455 | 1150 | if (NILP (tem)) continue; |
f927c5ae JB |
1151 | } |
1152 | /* Ok => put it on the list. */ | |
1153 | allmatches = Fcons (eltstring, allmatches); | |
1154 | } | |
1155 | } | |
1156 | ||
1157 | return Fnreverse (allmatches); | |
1158 | } | |
1159 | \f | |
1160 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1161 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1162 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
1163 | ||
b9d721de JB |
1164 | /* This comment supplies the doc string for completing-read, |
1165 | for make-docfile to see. We cannot put this in the real DEFUN | |
1166 | due to limits in the Unix cpp. | |
1167 | ||
cee54539 | 1168 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
f927c5ae | 1169 | "Read a string in the minibuffer, with completion.\n\ |
f927c5ae JB |
1170 | PROMPT is a string to prompt with; normally it ends in a colon and a space.\n\ |
1171 | TABLE is an alist whose elements' cars are strings, or an obarray.\n\ | |
1172 | PREDICATE limits completion to a subset of TABLE.\n\ | |
6b3faad8 RS |
1173 | See `try-completion' and `all-completions' for more details |
1174 | on completion, TABLE, and PREDICATE.\n\ | |
cbbc3917 | 1175 | \n\ |
f927c5ae | 1176 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless\n\ |
4ced3209 | 1177 | the input is (or completes to) an element of TABLE or is null.\n\ |
f927c5ae | 1178 | If it is also not t, Return does not exit if it does non-null completion.\n\ |
fab95625 | 1179 | If the input is null, `completing-read' returns an empty string,\n\ |
cbbc3917 RS |
1180 | regardless of the value of REQUIRE-MATCH.\n\ |
1181 | \n\ | |
f927c5ae | 1182 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.\n\ |
770970cb RS |
1183 | If it is (STRING . POSITION), the initial input\n\ |
1184 | is STRING, but point is placed POSITION characters into the string.\n\ | |
1185 | HIST, if non-nil, specifies a history list\n\ | |
1186 | and optionally the initial position in the list.\n\ | |
1187 | It can be a symbol, which is the history list variable to use,\n\ | |
1188 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
1189 | In that case, HISTVAR is the history list variable to use,\n\ | |
1190 | and HISTPOS is the initial position (the position in the list\n\ | |
1191 | which INITIAL-CONTENTS corresponds to).\n\ | |
1192 | Positions are counted starting from 1 at the beginning of the list.\n\ | |
cee54539 KH |
1193 | DEF, if non-nil, is the default value.\n\ |
1194 | \n\ | |
1195 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits\n\ | |
c8c15521 | 1196 | the current input method and the setting of enable-multibyte-characters.\n\ |
cee54539 | 1197 | \n\ |
770970cb | 1198 | Completion ignores case if the ambient value of\n\ |
b9d721de JB |
1199 | `completion-ignore-case' is non-nil." |
1200 | */ | |
cee54539 | 1201 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
b9d721de | 1202 | 0 /* See immediately above */) |
cee54539 | 1203 | (prompt, table, predicate, require_match, init, hist, def, inherit_input_method) |
e5d4686b | 1204 | Lisp_Object prompt, table, predicate, require_match, init, hist, def; |
cee54539 | 1205 | Lisp_Object inherit_input_method; |
f927c5ae | 1206 | { |
770970cb RS |
1207 | Lisp_Object val, histvar, histpos, position; |
1208 | int pos = 0; | |
f927c5ae | 1209 | int count = specpdl_ptr - specpdl; |
0c8ee1a2 | 1210 | struct gcpro gcpro1; |
dd9d15d6 | 1211 | int disable_multibyte = EQ (table, Qread_file_name_internal); |
0c8ee1a2 RS |
1212 | |
1213 | GCPRO1 (def); | |
1214 | ||
f927c5ae | 1215 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1216 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae JB |
1217 | specbind (Qminibuffer_completion_confirm, |
1218 | EQ (require_match, Qt) ? Qnil : Qt); | |
1219 | last_exact_completion = Qnil; | |
770970cb RS |
1220 | |
1221 | position = Qnil; | |
1222 | if (!NILP (init)) | |
1223 | { | |
7510b296 | 1224 | if (CONSP (init)) |
770970cb RS |
1225 | { |
1226 | position = Fcdr (init); | |
1227 | init = Fcar (init); | |
1228 | } | |
1229 | CHECK_STRING (init, 0); | |
1230 | if (!NILP (position)) | |
1231 | { | |
1232 | CHECK_NUMBER (position, 0); | |
1233 | /* Convert to distance from end of input. */ | |
5dadd3a2 | 1234 | pos = XINT (position) - XSTRING (init)->size; |
770970cb RS |
1235 | } |
1236 | } | |
1237 | ||
7510b296 | 1238 | if (SYMBOLP (hist)) |
770970cb RS |
1239 | { |
1240 | histvar = hist; | |
1241 | histpos = Qnil; | |
1242 | } | |
1243 | else | |
1244 | { | |
1245 | histvar = Fcar_safe (hist); | |
1246 | histpos = Fcdr_safe (hist); | |
1247 | } | |
1248 | if (NILP (histvar)) | |
1249 | histvar = Qminibuffer_history; | |
1250 | if (NILP (histpos)) | |
5a866662 | 1251 | XSETFASTINT (histpos, 0); |
770970cb | 1252 | |
56a98455 | 1253 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1254 | ? Vminibuffer_local_completion_map |
1255 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1256 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1257 | histvar, histpos, def, 0, |
1258 | !NILP (inherit_input_method)); | |
e5d4686b RS |
1259 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (def)) |
1260 | val = def; | |
0c8ee1a2 | 1261 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1262 | } |
1263 | \f | |
f927c5ae | 1264 | Lisp_Object Fminibuffer_completion_help (); |
52b14ac0 | 1265 | Lisp_Object assoc_for_completion (); |
5d2ca7ae RS |
1266 | /* A subroutine of Fintern_soft. */ |
1267 | extern Lisp_Object oblookup (); | |
1268 | ||
1269 | ||
1270 | /* Test whether TXT is an exact completion. */ | |
1271 | Lisp_Object | |
1272 | test_completion (txt) | |
1273 | Lisp_Object txt; | |
1274 | { | |
1275 | Lisp_Object tem; | |
1276 | ||
1277 | if (CONSP (Vminibuffer_completion_table) | |
1278 | || NILP (Vminibuffer_completion_table)) | |
1279 | return assoc_for_completion (txt, Vminibuffer_completion_table); | |
1280 | else if (VECTORP (Vminibuffer_completion_table)) | |
1281 | { | |
1282 | /* Bypass intern-soft as that loses for nil */ | |
1283 | tem = oblookup (Vminibuffer_completion_table, | |
1284 | XSTRING (txt)->data, XSTRING (txt)->size); | |
44472c88 | 1285 | if (!SYMBOLP (tem)) |
5d2ca7ae RS |
1286 | return Qnil; |
1287 | else if (!NILP (Vminibuffer_completion_predicate)) | |
1288 | return call1 (Vminibuffer_completion_predicate, tem); | |
1289 | else | |
1290 | return Qt; | |
1291 | } | |
1292 | else | |
1293 | return call3 (Vminibuffer_completion_table, txt, | |
1294 | Vminibuffer_completion_predicate, Qlambda); | |
1295 | } | |
f927c5ae JB |
1296 | |
1297 | /* returns: | |
1298 | * 0 no possible completion | |
1299 | * 1 was already an exact and unique completion | |
1300 | * 3 was already an exact completion | |
1301 | * 4 completed to an exact completion | |
1302 | * 5 some completion happened | |
1303 | * 6 no completion happened | |
1304 | */ | |
1305 | int | |
1306 | do_completion () | |
1307 | { | |
1308 | Lisp_Object completion, tem; | |
1309 | int completedp; | |
1310 | Lisp_Object last; | |
1e00c2ff | 1311 | struct gcpro gcpro1, gcpro2; |
f927c5ae JB |
1312 | |
1313 | completion = Ftry_completion (Fbuffer_string (), Vminibuffer_completion_table, | |
1314 | Vminibuffer_completion_predicate); | |
1315 | last = last_exact_completion; | |
1316 | last_exact_completion = Qnil; | |
1317 | ||
4f9b95e5 KH |
1318 | GCPRO2 (completion, last); |
1319 | ||
56a98455 | 1320 | if (NILP (completion)) |
f927c5ae JB |
1321 | { |
1322 | bitch_at_user (); | |
1323 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1324 | UNGCPRO; |
f927c5ae JB |
1325 | return 0; |
1326 | } | |
1327 | ||
1328 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1329 | { |
1330 | UNGCPRO; | |
1331 | return 1; | |
1332 | } | |
f927c5ae JB |
1333 | |
1334 | /* compiler bug */ | |
1335 | tem = Fstring_equal (completion, Fbuffer_string()); | |
56a98455 | 1336 | if (completedp = NILP (tem)) |
f927c5ae JB |
1337 | { |
1338 | Ferase_buffer (); /* Some completion happened */ | |
1339 | Finsert (1, &completion); | |
1340 | } | |
1341 | ||
1342 | /* It did find a match. Do we match some possibility exactly now? */ | |
5d2ca7ae | 1343 | tem = test_completion (Fbuffer_string ()); |
56a98455 | 1344 | if (NILP (tem)) |
1e00c2ff KH |
1345 | { |
1346 | /* not an exact match */ | |
1347 | UNGCPRO; | |
f927c5ae JB |
1348 | if (completedp) |
1349 | return 5; | |
1350 | else if (auto_help) | |
1351 | Fminibuffer_completion_help (); | |
1352 | else | |
1353 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1354 | return 6; | |
1355 | } | |
1356 | else if (completedp) | |
1e00c2ff KH |
1357 | { |
1358 | UNGCPRO; | |
1359 | return 4; | |
1360 | } | |
f927c5ae JB |
1361 | /* If the last exact completion and this one were the same, |
1362 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1363 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1364 | last_exact_completion = completion; |
56a98455 | 1365 | if (!NILP (last)) |
f927c5ae JB |
1366 | { |
1367 | tem = Fbuffer_string (); | |
56a98455 | 1368 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1369 | Fminibuffer_completion_help (); |
1370 | } | |
1e00c2ff | 1371 | UNGCPRO; |
f927c5ae | 1372 | return 3; |
f927c5ae | 1373 | } |
1e00c2ff | 1374 | |
52b14ac0 JB |
1375 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1376 | ||
1377 | Lisp_Object | |
1378 | assoc_for_completion (key, list) | |
1379 | register Lisp_Object key; | |
1380 | Lisp_Object list; | |
1381 | { | |
1382 | register Lisp_Object tail; | |
1383 | ||
1384 | if (completion_ignore_case) | |
1385 | key = Fupcase (key); | |
1386 | ||
56a98455 | 1387 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1388 | { |
1389 | register Lisp_Object elt, tem, thiscar; | |
1390 | elt = Fcar (tail); | |
1391 | if (!CONSP (elt)) continue; | |
1392 | thiscar = Fcar (elt); | |
7510b296 | 1393 | if (!STRINGP (thiscar)) |
52b14ac0 JB |
1394 | continue; |
1395 | if (completion_ignore_case) | |
1396 | thiscar = Fupcase (thiscar); | |
1397 | tem = Fequal (thiscar, key); | |
56a98455 | 1398 | if (!NILP (tem)) return elt; |
52b14ac0 JB |
1399 | QUIT; |
1400 | } | |
1401 | return Qnil; | |
1402 | } | |
f927c5ae JB |
1403 | |
1404 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
6300d782 | 1405 | "Complete the minibuffer contents as far as possible.\n\ |
2cb6da5c RS |
1406 | Return nil if there is no valid completion, else t.\n\ |
1407 | If no characters can be completed, display a list of possible completions.\n\ | |
1408 | If you repeat this command after it displayed such a list,\n\ | |
1409 | scroll the window of possible completions.") | |
f927c5ae JB |
1410 | () |
1411 | { | |
2cb6da5c RS |
1412 | register int i; |
1413 | Lisp_Object window, tem; | |
1414 | ||
1415 | /* If the previous command was not this, then mark the completion | |
1416 | buffer obsolete. */ | |
5221fd63 | 1417 | if (! EQ (current_kboard->Vlast_command, this_command)) |
2cb6da5c RS |
1418 | Vminibuf_scroll_window = Qnil; |
1419 | ||
1420 | window = Vminibuf_scroll_window; | |
1421 | /* If there's a fresh completion window with a live buffer, | |
1422 | and this command is repeated, scroll that window. */ | |
1423 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1424 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1425 | { | |
1426 | struct buffer *obuf = current_buffer; | |
1427 | ||
1428 | Fset_buffer (XWINDOW (window)->buffer); | |
1429 | tem = Fpos_visible_in_window_p (make_number (ZV), window); | |
1430 | if (! NILP (tem)) | |
1431 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1432 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1433 | else |
1434 | /* Else scroll down one screen. */ | |
1435 | Fscroll_other_window (Qnil); | |
1436 | ||
1437 | set_buffer_internal (obuf); | |
1438 | return Qnil; | |
1439 | } | |
1440 | ||
1441 | i = do_completion (); | |
f927c5ae JB |
1442 | switch (i) |
1443 | { | |
1444 | case 0: | |
1445 | return Qnil; | |
1446 | ||
1447 | case 1: | |
1448 | temp_echo_area_glyphs (" [Sole completion]"); | |
1449 | break; | |
1450 | ||
1451 | case 3: | |
1452 | temp_echo_area_glyphs (" [Complete, but not unique]"); | |
1453 | break; | |
1454 | } | |
1455 | ||
1456 | return Qt; | |
1457 | } | |
e4c97a67 RS |
1458 | \f |
1459 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1460 | ||
1461 | /* This one is called by internal_condition_case to do the real work. */ | |
1462 | ||
1463 | Lisp_Object | |
1464 | complete_and_exit_1 () | |
1465 | { | |
1466 | return make_number (do_completion ()); | |
1467 | } | |
1468 | ||
1469 | /* This one is called by internal_condition_case if an error happens. | |
1470 | Pretend the current value is an exact match. */ | |
1471 | ||
1472 | Lisp_Object | |
1473 | complete_and_exit_2 (ignore) | |
1474 | Lisp_Object ignore; | |
1475 | { | |
1476 | return make_number (1); | |
1477 | } | |
f927c5ae JB |
1478 | |
1479 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
1480 | Sminibuffer_complete_and_exit, 0, 0, "", | |
5d2ca7ae RS |
1481 | "If the minibuffer contents is a valid completion then exit.\n\ |
1482 | Otherwise try to complete it. If completion leads to a valid completion,\n\ | |
f927c5ae JB |
1483 | a repetition of this command will exit.") |
1484 | () | |
1485 | { | |
1486 | register int i; | |
e4c97a67 | 1487 | Lisp_Object val; |
f927c5ae JB |
1488 | |
1489 | /* Allow user to specify null string */ | |
1490 | if (BEGV == ZV) | |
1491 | goto exit; | |
1492 | ||
5d2ca7ae RS |
1493 | if (!NILP (test_completion (Fbuffer_string ()))) |
1494 | goto exit; | |
1495 | ||
e4c97a67 RS |
1496 | /* Call do_completion, but ignore errors. */ |
1497 | val = internal_condition_case (complete_and_exit_1, Qerror, | |
1498 | complete_and_exit_2); | |
1499 | ||
1500 | i = XFASTINT (val); | |
f927c5ae JB |
1501 | switch (i) |
1502 | { | |
1503 | case 1: | |
1504 | case 3: | |
1505 | goto exit; | |
1506 | ||
1507 | case 4: | |
56a98455 | 1508 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1509 | { |
1510 | temp_echo_area_glyphs (" [Confirm]"); | |
1511 | return Qnil; | |
1512 | } | |
1513 | else | |
1514 | goto exit; | |
1515 | ||
1516 | default: | |
1517 | return Qnil; | |
1518 | } | |
1519 | exit: | |
1520 | Fthrow (Qexit, Qnil); | |
1521 | /* NOTREACHED */ | |
1522 | } | |
1523 | ||
1524 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
1525 | 0, 0, "", | |
1526 | "Complete the minibuffer contents at most a single word.\n\ | |
1527 | After one word is completed as much as possible, a space or hyphen\n\ | |
6300d782 KH |
1528 | is added, provided that matches some possible completion.\n\ |
1529 | Return nil if there is no valid completion, else t.") | |
f927c5ae JB |
1530 | () |
1531 | { | |
1532 | Lisp_Object completion, tem; | |
1533 | register int i; | |
1534 | register unsigned char *completion_string; | |
d7be4211 | 1535 | struct gcpro gcpro1, gcpro2; |
b278606c BF |
1536 | |
1537 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1538 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae JB |
1539 | |
1540 | completion = Ftry_completion (Fbuffer_string (), | |
1541 | Vminibuffer_completion_table, | |
1542 | Vminibuffer_completion_predicate); | |
56a98455 | 1543 | if (NILP (completion)) |
f927c5ae JB |
1544 | { |
1545 | bitch_at_user (); | |
1546 | temp_echo_area_glyphs (" [No match]"); | |
1547 | return Qnil; | |
1548 | } | |
1549 | if (EQ (completion, Qt)) | |
1550 | return Qnil; | |
1551 | ||
b278606c | 1552 | #if 0 /* How the below code used to look, for reference. */ |
f927c5ae JB |
1553 | tem = Fbuffer_string (); |
1554 | b = XSTRING (tem)->data; | |
1555 | i = ZV - 1 - XSTRING (completion)->size; | |
1556 | p = XSTRING (completion)->data; | |
1557 | if (i > 0 || | |
1558 | 0 <= scmp (b, p, ZV - 1)) | |
1559 | { | |
1560 | i = 1; | |
1561 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1562 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1563 | i++; | |
1564 | del_range (1, i + 1); | |
1565 | SET_PT (ZV); | |
1566 | } | |
1567 | #else /* Rewritten code */ | |
1568 | { | |
1569 | register unsigned char *buffer_string; | |
1570 | int buffer_length, completion_length; | |
1571 | ||
59860a8c | 1572 | CHECK_STRING (completion, 0); |
f927c5ae | 1573 | tem = Fbuffer_string (); |
d7be4211 | 1574 | GCPRO2 (completion, tem); |
719b4a40 RS |
1575 | /* If reading a file name, |
1576 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
1577 | if (EQ (Vminibuffer_completion_table, Qread_file_name_internal)) | |
1578 | { | |
1579 | Lisp_Object substituted; | |
1580 | substituted = Fsubstitute_in_file_name (tem); | |
1581 | if (! EQ (substituted, tem)) | |
1582 | { | |
1583 | tem = substituted; | |
1584 | Ferase_buffer (); | |
3cab9ae4 | 1585 | insert_from_string (tem, 0, XSTRING (tem)->size, 0); |
719b4a40 RS |
1586 | } |
1587 | } | |
f927c5ae JB |
1588 | buffer_string = XSTRING (tem)->data; |
1589 | completion_string = XSTRING (completion)->data; | |
1590 | buffer_length = XSTRING (tem)->size; /* ie ZV - BEGV */ | |
1591 | completion_length = XSTRING (completion)->size; | |
1592 | i = buffer_length - completion_length; | |
1593 | /* Mly: I don't understand what this is supposed to do AT ALL */ | |
1594 | if (i > 0 || | |
1595 | 0 <= scmp (buffer_string, completion_string, buffer_length)) | |
1596 | { | |
1597 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1598 | if (i <= 0) i = 1; | |
1599 | buffer_string += i; | |
1600 | buffer_length -= i; | |
1601 | while (0 <= scmp (buffer_string++, completion_string, buffer_length--)) | |
1602 | i++; | |
1603 | del_range (1, i + 1); | |
1604 | SET_PT (ZV); | |
1605 | } | |
d7be4211 | 1606 | UNGCPRO; |
f927c5ae JB |
1607 | } |
1608 | #endif /* Rewritten code */ | |
1609 | i = ZV - BEGV; | |
1610 | ||
1611 | /* If completion finds next char not unique, | |
b278606c | 1612 | consider adding a space or a hyphen. */ |
f927c5ae JB |
1613 | if (i == XSTRING (completion)->size) |
1614 | { | |
b278606c | 1615 | GCPRO1 (completion); |
f927c5ae JB |
1616 | tem = Ftry_completion (concat2 (Fbuffer_string (), build_string (" ")), |
1617 | Vminibuffer_completion_table, | |
1618 | Vminibuffer_completion_predicate); | |
b278606c BF |
1619 | UNGCPRO; |
1620 | ||
7510b296 | 1621 | if (STRINGP (tem)) |
f927c5ae JB |
1622 | completion = tem; |
1623 | else | |
1624 | { | |
b278606c BF |
1625 | GCPRO1 (completion); |
1626 | tem = | |
1627 | Ftry_completion (concat2 (Fbuffer_string (), build_string ("-")), | |
1628 | Vminibuffer_completion_table, | |
1629 | Vminibuffer_completion_predicate); | |
1630 | UNGCPRO; | |
1631 | ||
7510b296 | 1632 | if (STRINGP (tem)) |
f927c5ae JB |
1633 | completion = tem; |
1634 | } | |
1635 | } | |
1636 | ||
1637 | /* Now find first word-break in the stuff found by completion. | |
1638 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
1639 | { |
1640 | int len, c; | |
b278606c | 1641 | |
d50a3d2a KH |
1642 | completion_string = XSTRING (completion)->data; |
1643 | for (; i < XSTRING (completion)->size; i += len) | |
1644 | { | |
1645 | c = STRING_CHAR_AND_LENGTH (completion_string + i, | |
1646 | XSTRING (completion)->size - i, | |
1647 | len); | |
1648 | if (SYNTAX (c) != Sword) | |
1649 | { | |
1650 | i += len; | |
1651 | break; | |
1652 | } | |
1653 | } | |
1654 | } | |
f927c5ae JB |
1655 | |
1656 | /* If got no characters, print help for user. */ | |
1657 | ||
1658 | if (i == ZV - BEGV) | |
1659 | { | |
1660 | if (auto_help) | |
1661 | Fminibuffer_completion_help (); | |
1662 | return Qnil; | |
1663 | } | |
1664 | ||
1665 | /* Otherwise insert in minibuffer the chars we got */ | |
1666 | ||
1667 | Ferase_buffer (); | |
3cab9ae4 | 1668 | insert_from_string (completion, 0, i, 1); |
f927c5ae JB |
1669 | return Qt; |
1670 | } | |
1671 | \f | |
1672 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
1673 | 1, 1, 0, | |
2dc2b736 | 1674 | "Display the list of completions, COMPLETIONS, using `standard-output'.\n\ |
f927c5ae | 1675 | Each element may be just a symbol or string\n\ |
2d7e41fe RS |
1676 | or may be a list of two strings to be printed as if concatenated.\n\ |
1677 | `standard-output' must be a buffer.\n\ | |
1678 | At the end, run the normal hook `completion-setup-hook'.\n\ | |
1679 | It can find the completion buffer in `standard-output'.") | |
f927c5ae JB |
1680 | (completions) |
1681 | Lisp_Object completions; | |
1682 | { | |
dae36123 | 1683 | Lisp_Object tail, elt; |
f927c5ae | 1684 | register int i; |
2dc2b736 | 1685 | int column = 0; |
dae36123 | 1686 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 1687 | struct buffer *old = current_buffer; |
681f5af4 | 1688 | int first = 1; |
486cc7fb RS |
1689 | |
1690 | /* Note that (when it matters) every variable | |
dae36123 RS |
1691 | points to a non-string that is pointed to by COMPLETIONS, |
1692 | except for ELT. ELT can be pointing to a string | |
1693 | when terpri or Findent_to calls a change hook. */ | |
1694 | elt = Qnil; | |
1695 | GCPRO2 (completions, elt); | |
486cc7fb | 1696 | |
7510b296 | 1697 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 1698 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 1699 | |
56a98455 | 1700 | if (NILP (completions)) |
cfc736bf RS |
1701 | write_string ("There are no possible completions of what you have typed.", |
1702 | -1); | |
f927c5ae JB |
1703 | else |
1704 | { | |
2dc2b736 | 1705 | write_string ("Possible completions are:", -1); |
56a98455 | 1706 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 1707 | { |
681f5af4 RS |
1708 | Lisp_Object tem; |
1709 | int length; | |
47d7d104 | 1710 | Lisp_Object startpos, endpos; |
681f5af4 RS |
1711 | |
1712 | elt = Fcar (tail); | |
1713 | /* Compute the length of this element. */ | |
1714 | if (CONSP (elt)) | |
1715 | { | |
49db96ce | 1716 | tem = XCAR (elt); |
681f5af4 | 1717 | CHECK_STRING (tem, 0); |
49db96ce | 1718 | length = XSTRING (tem)->size; |
681f5af4 | 1719 | |
49db96ce | 1720 | tem = Fcar (XCDR (elt)); |
681f5af4 | 1721 | CHECK_STRING (tem, 0); |
49db96ce | 1722 | length += XSTRING (tem)->size; |
681f5af4 RS |
1723 | } |
1724 | else | |
1725 | { | |
1726 | CHECK_STRING (elt, 0); | |
49db96ce | 1727 | length = XSTRING (elt)->size; |
681f5af4 RS |
1728 | } |
1729 | ||
1730 | /* This does a bad job for narrower than usual windows. | |
1731 | Sadly, the window it will appear in is not known | |
1732 | until after the text has been made. */ | |
1733 | ||
47d7d104 RS |
1734 | if (BUFFERP (Vstandard_output)) |
1735 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
1736 | ||
681f5af4 RS |
1737 | /* If the previous completion was very wide, |
1738 | or we have two on this line already, | |
1739 | don't put another on the same line. */ | |
1740 | if (column > 33 || first | |
1741 | /* If this is really wide, don't put it second on a line. */ | |
1742 | || column > 0 && length > 45) | |
1743 | { | |
1744 | Fterpri (Qnil); | |
1745 | column = 0; | |
1746 | } | |
1747 | /* Otherwise advance to column 35. */ | |
1748 | else | |
2dc2b736 | 1749 | { |
7510b296 | 1750 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
1751 | { |
1752 | tem = Findent_to (make_number (35), make_number (2)); | |
47d7d104 | 1753 | |
681f5af4 RS |
1754 | column = XINT (tem); |
1755 | } | |
2dc2b736 RS |
1756 | else |
1757 | { | |
1758 | do | |
1759 | { | |
1760 | write_string (" ", -1); | |
1761 | column++; | |
1762 | } | |
1763 | while (column < 35); | |
1764 | } | |
1765 | } | |
681f5af4 | 1766 | |
47d7d104 RS |
1767 | if (BUFFERP (Vstandard_output)) |
1768 | { | |
1769 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
1770 | Fset_text_properties (startpos, endpos, | |
1771 | Qnil, Vstandard_output); | |
1772 | } | |
1773 | ||
681f5af4 | 1774 | /* Output this element and update COLUMN. */ |
f927c5ae JB |
1775 | if (CONSP (elt)) |
1776 | { | |
1777 | Fprinc (Fcar (elt), Qnil); | |
1778 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
1779 | } | |
1780 | else | |
681f5af4 RS |
1781 | Fprinc (elt, Qnil); |
1782 | ||
1783 | column += length; | |
1784 | ||
1785 | /* If output is to a buffer, recompute COLUMN in a way | |
1786 | that takes account of character widths. */ | |
1787 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 1788 | { |
681f5af4 RS |
1789 | tem = Fcurrent_column (); |
1790 | column = XINT (tem); | |
2dc2b736 | 1791 | } |
681f5af4 RS |
1792 | |
1793 | first = 0; | |
f927c5ae JB |
1794 | } |
1795 | } | |
2dc2b736 | 1796 | |
486cc7fb RS |
1797 | UNGCPRO; |
1798 | ||
7510b296 | 1799 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
1800 | set_buffer_internal (old); |
1801 | ||
cfc736bf RS |
1802 | if (!NILP (Vrun_hooks)) |
1803 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
1804 | ||
f927c5ae JB |
1805 | return Qnil; |
1806 | } | |
1807 | ||
1808 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
1809 | 0, 0, "", | |
1810 | "Display a list of possible completions of the current minibuffer contents.") | |
1811 | () | |
1812 | { | |
1813 | Lisp_Object completions; | |
1814 | ||
1815 | message ("Making completion list..."); | |
1816 | completions = Fall_completions (Fbuffer_string (), | |
1817 | Vminibuffer_completion_table, | |
89a255dc RS |
1818 | Vminibuffer_completion_predicate, |
1819 | Qt); | |
f927c5ae JB |
1820 | echo_area_glyphs = 0; |
1821 | ||
56a98455 | 1822 | if (NILP (completions)) |
f927c5ae JB |
1823 | { |
1824 | bitch_at_user (); | |
1825 | temp_echo_area_glyphs (" [No completions]"); | |
1826 | } | |
1827 | else | |
1828 | internal_with_output_to_temp_buffer ("*Completions*", | |
1829 | Fdisplay_completion_list, | |
1830 | Fsort (completions, Qstring_lessp)); | |
1831 | return Qnil; | |
1832 | } | |
1833 | \f | |
1834 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
1835 | "Terminate minibuffer input.") | |
1836 | () | |
1837 | { | |
7510b296 | 1838 | if (INTEGERP (last_command_char)) |
f927c5ae JB |
1839 | internal_self_insert (last_command_char, 0); |
1840 | else | |
1841 | bitch_at_user (); | |
1842 | ||
1843 | Fthrow (Qexit, Qnil); | |
1844 | } | |
1845 | ||
1846 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
1847 | "Terminate this minibuffer argument.") | |
1848 | () | |
1849 | { | |
1850 | Fthrow (Qexit, Qnil); | |
1851 | } | |
1852 | ||
1853 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
1854 | "Return current depth of activations of minibuffer, a nonnegative integer.") | |
1855 | () | |
1856 | { | |
1857 | return make_number (minibuf_level); | |
1858 | } | |
1859 | ||
37e9a934 KH |
1860 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
1861 | "Return the prompt string of the currently-active minibuffer.\n\ | |
1862 | If no minibuffer is active, return nil.") | |
1863 | () | |
1864 | { | |
4d04c1f1 | 1865 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
1866 | } |
1867 | ||
1868 | DEFUN ("minibuffer-prompt-width", Fminibuffer_prompt_width, | |
1869 | Sminibuffer_prompt_width, 0, 0, 0, | |
c5896ef4 | 1870 | "Return the display width of the minibuffer prompt.") |
37e9a934 KH |
1871 | () |
1872 | { | |
1873 | Lisp_Object width; | |
5a866662 | 1874 | XSETFASTINT (width, minibuf_prompt_width); |
37e9a934 KH |
1875 | return width; |
1876 | } | |
f927c5ae | 1877 | \f |
2d955a50 RS |
1878 | /* Temporarily display the string M at the end of the current |
1879 | minibuffer contents. This is used to display things like | |
1880 | "[No Match]" when the user requests a completion for a prefix | |
1881 | that has no possible completions, and other quick, unobtrusive | |
1882 | messages. */ | |
1883 | ||
1884 | temp_echo_area_glyphs (m) | |
1885 | char *m; | |
1886 | { | |
1887 | int osize = ZV; | |
1888 | int opoint = PT; | |
1889 | Lisp_Object oinhibit; | |
1890 | oinhibit = Vinhibit_quit; | |
1891 | ||
1892 | /* Clear out any old echo-area message to make way for our new thing. */ | |
1893 | message (0); | |
1894 | ||
1895 | SET_PT (osize); | |
1896 | insert_string (m); | |
1897 | SET_PT (opoint); | |
1898 | Vinhibit_quit = Qt; | |
1899 | Fsit_for (make_number (2), Qnil, Qnil); | |
1900 | del_range (osize, ZV); | |
1901 | SET_PT (opoint); | |
1902 | if (!NILP (Vquit_flag)) | |
1903 | { | |
1904 | Vquit_flag = Qnil; | |
1905 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
1906 | } | |
1907 | Vinhibit_quit = oinhibit; | |
1908 | } | |
1909 | ||
1910 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
1911 | 1, 1, 0, | |
1912 | "Temporarily display STRING at the end of the minibuffer.\n\ | |
1913 | The text is displayed for two seconds,\n\ | |
1914 | or until the next input event arrives, whichever comes first.") | |
1915 | (string) | |
1916 | Lisp_Object string; | |
1917 | { | |
1918 | temp_echo_area_glyphs (XSTRING (string)->data); | |
1919 | return Qnil; | |
1920 | } | |
1921 | \f | |
f927c5ae JB |
1922 | init_minibuf_once () |
1923 | { | |
1924 | Vminibuffer_list = Qnil; | |
1925 | staticpro (&Vminibuffer_list); | |
1926 | } | |
1927 | ||
1928 | syms_of_minibuf () | |
1929 | { | |
1930 | minibuf_level = 0; | |
4d04c1f1 KH |
1931 | minibuf_prompt = Qnil; |
1932 | staticpro (&minibuf_prompt); | |
1933 | ||
1934 | minibuf_save_list = Qnil; | |
1935 | staticpro (&minibuf_save_list); | |
f927c5ae | 1936 | |
719b4a40 RS |
1937 | Qread_file_name_internal = intern ("read-file-name-internal"); |
1938 | staticpro (&Qread_file_name_internal); | |
1939 | ||
e5d4686b RS |
1940 | Qminibuffer_default = intern ("minibuffer-default"); |
1941 | staticpro (&Qminibuffer_default); | |
1942 | Fset (Qminibuffer_default, Qnil); | |
1943 | ||
f927c5ae JB |
1944 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
1945 | staticpro (&Qminibuffer_completion_table); | |
1946 | ||
1947 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
1948 | staticpro (&Qminibuffer_completion_confirm); | |
1949 | ||
1950 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
1951 | staticpro (&Qminibuffer_completion_predicate); | |
1952 | ||
1e00c2ff KH |
1953 | staticpro (&last_exact_completion); |
1954 | last_exact_completion = Qnil; | |
1955 | ||
f927c5ae JB |
1956 | staticpro (&last_minibuf_string); |
1957 | last_minibuf_string = Qnil; | |
1958 | ||
1959 | Quser_variable_p = intern ("user-variable-p"); | |
1960 | staticpro (&Quser_variable_p); | |
1961 | ||
770970cb RS |
1962 | Qminibuffer_history = intern ("minibuffer-history"); |
1963 | staticpro (&Qminibuffer_history); | |
f927c5ae | 1964 | |
5c781212 RS |
1965 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
1966 | staticpro (&Qminibuffer_setup_hook); | |
1967 | ||
177aecf9 KH |
1968 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
1969 | staticpro (&Qminibuffer_exit_hook); | |
1970 | ||
77aa8edf RS |
1971 | Qhistory_length = intern ("history-length"); |
1972 | staticpro (&Qhistory_length); | |
1973 | ||
cee54539 KH |
1974 | Qcurrent_input_method = intern ("current-input-method"); |
1975 | staticpro (&Qcurrent_input_method); | |
1976 | ||
1977 | Qactivate_input_method = intern ("activate-input-method"); | |
1978 | staticpro (&Qactivate_input_method); | |
1979 | ||
5c781212 RS |
1980 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
1981 | "Normal hook run just after entry to minibuffer."); | |
1982 | Vminibuffer_setup_hook = Qnil; | |
1983 | ||
177aecf9 KH |
1984 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
1985 | "Normal hook run just after exit from minibuffer."); | |
1986 | Vminibuffer_exit_hook = Qnil; | |
1987 | ||
77aa8edf RS |
1988 | DEFVAR_LISP ("history-length", &Vhistory_length, |
1989 | "*Maximum length for history lists before truncation takes place.\n\ | |
1990 | A number means that length; t means infinite. Truncation takes place\n\ | |
1991 | just after a new element is inserted. Setting the history-length\n\ | |
1992 | property of a history variable overrides this default."); | |
1993 | XSETFASTINT (Vhistory_length, 30); | |
1994 | ||
f927c5ae JB |
1995 | DEFVAR_BOOL ("completion-auto-help", &auto_help, |
1996 | "*Non-nil means automatically provide help for invalid completion input."); | |
1997 | auto_help = 1; | |
1998 | ||
1999 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, | |
2000 | "Non-nil means don't consider case significant in completion."); | |
2001 | completion_ignore_case = 0; | |
2002 | ||
2003 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, | |
2004 | "*Non-nil means to allow minibuffer commands while in the minibuffer.\n\ | |
7e3e3ad1 | 2005 | This variable makes a difference whenever the minibuffer window is active."); |
f927c5ae JB |
2006 | enable_recursive_minibuffers = 0; |
2007 | ||
2008 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, | |
2009 | "Alist or obarray used for completion in the minibuffer.\n\ | |
2010 | This becomes the ALIST argument to `try-completion' and `all-completion'.\n\ | |
2011 | \n\ | |
2012 | The value may alternatively be a function, which is given three arguments:\n\ | |
2013 | STRING, the current buffer contents;\n\ | |
2014 | PREDICATE, the predicate for filtering possible matches;\n\ | |
2015 | CODE, which says what kind of things to do.\n\ | |
2016 | CODE can be nil, t or `lambda'.\n\ | |
2017 | nil means to return the best completion of STRING, or nil if there is none.\n\ | |
2018 | t means to return a list of all possible completions of STRING.\n\ | |
2019 | `lambda' means to return t if STRING is a valid completion as it stands."); | |
2020 | Vminibuffer_completion_table = Qnil; | |
2021 | ||
2022 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, | |
2023 | "Within call to `completing-read', this holds the PREDICATE argument."); | |
2024 | Vminibuffer_completion_predicate = Qnil; | |
2025 | ||
2026 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, | |
2027 | "Non-nil => demand confirmation of completion before exiting minibuffer."); | |
2028 | Vminibuffer_completion_confirm = Qnil; | |
2029 | ||
2030 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, | |
2031 | "Value that `help-form' takes on inside the minibuffer."); | |
2032 | Vminibuffer_help_form = Qnil; | |
2033 | ||
770970cb RS |
2034 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2035 | "History list symbol to add minibuffer values to.\n\ | |
2fa2413b RS |
2036 | Each string of minibuffer input, as it appears on exit from the minibuffer,\n\ |
2037 | is added with\n\ | |
770970cb RS |
2038 | (set minibuffer-history-variable\n\ |
2039 | (cons STRING (symbol-value minibuffer-history-variable)))"); | |
5a866662 | 2040 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb RS |
2041 | |
2042 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, | |
2043 | "Current position of redoing in the history list."); | |
2044 | Vminibuffer_history_position = Qnil; | |
2045 | ||
6a9ee000 | 2046 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
e98bcc1a RS |
2047 | "*Non-nil means entering the minibuffer raises the minibuffer's frame.\n\ |
2048 | Some uses of the echo area also raise that frame (since they use it too)."); | |
6a9ee000 RS |
2049 | minibuffer_auto_raise = 0; |
2050 | ||
42006772 RS |
2051 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2052 | "List of regexps that should restrict possible completions."); | |
2053 | Vcompletion_regexp_list = Qnil; | |
2054 | ||
c3421833 RS |
2055 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
2056 | &minibuffer_allow_text_properties, | |
2057 | "Non-nil means `read-from-miniffer' should not discard text properties.\n\ | |
2058 | This also affects `read-string', but it does not affect `read-minibuffer',\n\ | |
2059 | `read-no-blanks-input', or any of the functions that do minibuffer input\n\ | |
2bfbde2b | 2060 | with completion; they always discard text properties."); |
c3421833 RS |
2061 | minibuffer_allow_text_properties = 0; |
2062 | ||
68313ed8 | 2063 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2064 | defsubr (&Sread_from_minibuffer); |
2065 | defsubr (&Seval_minibuffer); | |
2066 | defsubr (&Sread_minibuffer); | |
2067 | defsubr (&Sread_string); | |
2068 | defsubr (&Sread_command); | |
2069 | defsubr (&Sread_variable); | |
2070 | defsubr (&Sread_buffer); | |
2071 | defsubr (&Sread_no_blanks_input); | |
2072 | defsubr (&Sminibuffer_depth); | |
37e9a934 KH |
2073 | defsubr (&Sminibuffer_prompt); |
2074 | defsubr (&Sminibuffer_prompt_width); | |
f927c5ae JB |
2075 | |
2076 | defsubr (&Stry_completion); | |
2077 | defsubr (&Sall_completions); | |
2078 | defsubr (&Scompleting_read); | |
2079 | defsubr (&Sminibuffer_complete); | |
2080 | defsubr (&Sminibuffer_complete_word); | |
2081 | defsubr (&Sminibuffer_complete_and_exit); | |
2082 | defsubr (&Sdisplay_completion_list); | |
2083 | defsubr (&Sminibuffer_completion_help); | |
2084 | ||
2085 | defsubr (&Sself_insert_and_exit); | |
2086 | defsubr (&Sexit_minibuffer); | |
2087 | ||
2d955a50 | 2088 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2089 | } |
2090 | ||
2091 | keys_of_minibuf () | |
2092 | { | |
2093 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2094 | "abort-recursive-edit"); | |
2095 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2096 | "exit-minibuffer"); | |
2097 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2098 | "exit-minibuffer"); | |
2099 | ||
2100 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('g'), | |
2101 | "abort-recursive-edit"); | |
2102 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('m'), | |
2103 | "exit-minibuffer"); | |
2104 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('j'), | |
2105 | "exit-minibuffer"); | |
2106 | ||
2107 | initial_define_key (Vminibuffer_local_ns_map, ' ', | |
2108 | "exit-minibuffer"); | |
2109 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2110 | "exit-minibuffer"); | |
2111 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2112 | "self-insert-and-exit"); | |
2113 | ||
2114 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('g'), | |
2115 | "abort-recursive-edit"); | |
2116 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('m'), | |
2117 | "exit-minibuffer"); | |
2118 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('j'), | |
2119 | "exit-minibuffer"); | |
2120 | ||
2121 | initial_define_key (Vminibuffer_local_completion_map, '\t', | |
2122 | "minibuffer-complete"); | |
2123 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2124 | "minibuffer-complete-word"); | |
2125 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2126 | "minibuffer-completion-help"); | |
2127 | ||
2128 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('g'), | |
2129 | "abort-recursive-edit"); | |
2130 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), | |
2131 | "minibuffer-complete-and-exit"); | |
2132 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2133 | "minibuffer-complete-and-exit"); | |
2134 | initial_define_key (Vminibuffer_local_must_match_map, '\t', | |
2135 | "minibuffer-complete"); | |
2136 | initial_define_key (Vminibuffer_local_must_match_map, ' ', | |
2137 | "minibuffer-complete-word"); | |
2138 | initial_define_key (Vminibuffer_local_must_match_map, '?', | |
2139 | "minibuffer-completion-help"); | |
2140 | } |