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 | |
eebbfb01 KH |
89 | /* Function to call to read a buffer name. */ |
90 | Lisp_Object Vread_buffer_function; | |
91 | ||
f927c5ae JB |
92 | /* Nonzero means completion ignores case. */ |
93 | ||
94 | int completion_ignore_case; | |
95 | ||
42006772 RS |
96 | /* List of regexps that should restrict possible completions. */ |
97 | ||
98 | Lisp_Object Vcompletion_regexp_list; | |
99 | ||
6a9ee000 RS |
100 | /* Nonzero means raise the minibuffer frame when the minibuffer |
101 | is entered. */ | |
102 | ||
103 | int minibuffer_auto_raise; | |
104 | ||
f927c5ae JB |
105 | /* If last completion attempt reported "Complete but not unique" |
106 | then this is the string completed then; otherwise this is nil. */ | |
107 | ||
108 | static Lisp_Object last_exact_completion; | |
109 | ||
110 | Lisp_Object Quser_variable_p; | |
2cb6da5c | 111 | |
e5d4686b RS |
112 | Lisp_Object Qminibuffer_default; |
113 | ||
2cb6da5c RS |
114 | /* Non-nil means it is the window for C-M-v to scroll |
115 | when the minibuffer is selected. */ | |
116 | extern Lisp_Object Vminibuf_scroll_window; | |
30e13e56 RS |
117 | |
118 | extern Lisp_Object Voverriding_local_map; | |
cee54539 KH |
119 | |
120 | Lisp_Object Qcurrent_input_method, Qactivate_input_method; | |
121 | ||
f927c5ae | 122 | \f |
89fdc4a0 KH |
123 | /* Put minibuf on currently selected frame's minibuffer. |
124 | We do this whenever the user starts a new minibuffer | |
125 | or when a minibuffer exits. */ | |
126 | ||
127 | void | |
128 | choose_minibuf_frame () | |
129 | { | |
130 | if (selected_frame != 0 | |
131 | && !EQ (minibuf_window, selected_frame->minibuffer_window)) | |
132 | { | |
133 | /* I don't think that any frames may validly have a null minibuffer | |
134 | window anymore. */ | |
135 | if (NILP (selected_frame->minibuffer_window)) | |
136 | abort (); | |
137 | ||
138 | Fset_window_buffer (selected_frame->minibuffer_window, | |
139 | XWINDOW (minibuf_window)->buffer); | |
140 | minibuf_window = selected_frame->minibuffer_window; | |
141 | } | |
914860c2 RS |
142 | |
143 | /* Make sure no other frame has a minibuffer as its selected window, | |
144 | because the text would not be displayed in it, and that would be | |
07d402c8 RS |
145 | confusing. Only allow the selected frame to do this, |
146 | and that only if the minibuffer is active. */ | |
914860c2 RS |
147 | { |
148 | Lisp_Object tail, frame; | |
149 | ||
150 | FOR_EACH_FRAME (tail, frame) | |
07d402c8 RS |
151 | if (MINI_WINDOW_P (XWINDOW (FRAME_SELECTED_WINDOW (XFRAME (frame)))) |
152 | && !(XFRAME (frame) == selected_frame | |
153 | && minibuf_level > 0)) | |
914860c2 RS |
154 | Fset_frame_selected_window (frame, Fframe_first_window (frame)); |
155 | } | |
89fdc4a0 | 156 | } |
68313ed8 | 157 | |
0c94f256 RS |
158 | Lisp_Object |
159 | choose_minibuf_frame_1 (ignore) | |
160 | Lisp_Object ignore; | |
161 | { | |
162 | choose_minibuf_frame (); | |
163 | return Qnil; | |
164 | } | |
165 | ||
68313ed8 RS |
166 | DEFUN ("set-minibuffer-window", Fset_minibuffer_window, |
167 | Sset_minibuffer_window, 1, 1, 0, | |
168 | "Specify which minibuffer window to use for the minibuffer.\n\ | |
169 | This effects where the minibuffer is displayed if you put text in it\n\ | |
170 | without invoking the usual minibuffer commands.") | |
171 | (window) | |
172 | Lisp_Object window; | |
173 | { | |
174 | CHECK_WINDOW (window, 1); | |
175 | if (! MINI_WINDOW_P (XWINDOW (window))) | |
176 | error ("Window is not a minibuffer window"); | |
177 | ||
178 | minibuf_window = window; | |
179 | ||
180 | return window; | |
181 | } | |
182 | ||
89fdc4a0 | 183 | \f |
f927c5ae JB |
184 | /* Actual minibuffer invocation. */ |
185 | ||
9d815fd9 | 186 | static Lisp_Object read_minibuf_unwind (); |
f927c5ae | 187 | Lisp_Object get_minibuffer (); |
e5d4686b | 188 | static Lisp_Object read_minibuf (); |
f927c5ae | 189 | |
770970cb | 190 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
85b5fe07 | 191 | (a string), putting point minus BACKUP_N chars from the end of INITIAL, |
770970cb | 192 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 193 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
194 | |
195 | Normally return the result as a string (the text that was read), | |
3ab14176 | 196 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
197 | If HISTVAR is given, save the value read on that history only if it doesn't |
198 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 199 | the list as the string that was read. |
770970cb | 200 | |
c3421833 RS |
201 | DEFALT specifies te default value for the sake of history commands. |
202 | ||
cee54539 KH |
203 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
204 | ||
205 | if INHERIT_INPUT_METHOD is nonzeor, the minibuffer inherit the | |
206 | current input method. */ | |
e5d4686b RS |
207 | |
208 | static Lisp_Object | |
209 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 210 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
211 | Lisp_Object map; |
212 | Lisp_Object initial; | |
213 | Lisp_Object prompt; | |
5061d9c3 | 214 | Lisp_Object backup_n; |
f927c5ae | 215 | int expflag; |
770970cb RS |
216 | Lisp_Object histvar; |
217 | Lisp_Object histpos; | |
e5d4686b | 218 | Lisp_Object defalt; |
cee54539 | 219 | int inherit_input_method; |
f927c5ae | 220 | { |
00a34088 | 221 | Lisp_Object val; |
f927c5ae | 222 | int count = specpdl_ptr - specpdl; |
cee54539 KH |
223 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
224 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 225 | Lisp_Object enable_multibyte; |
00a34088 | 226 | |
e5d4686b RS |
227 | specbind (Qminibuffer_default, defalt); |
228 | ||
08f7d623 | 229 | single_kboard_state (); |
718d3251 | 230 | |
00a34088 | 231 | val = Qnil; |
57ceaa8a | 232 | ambient_dir = current_buffer->directory; |
cee54539 | 233 | input_method = Qnil; |
c75000c7 | 234 | enable_multibyte = Qnil; |
57ceaa8a | 235 | |
00a34088 RS |
236 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
237 | store them away before we can GC. Don't need to protect | |
238 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 239 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 240 | |
7510b296 | 241 | if (!STRINGP (prompt)) |
f927c5ae JB |
242 | prompt = build_string (""); |
243 | ||
f927c5ae | 244 | if (!enable_recursive_minibuffers |
be15a518 RS |
245 | && minibuf_level > 0) |
246 | { | |
247 | if (EQ (selected_window, minibuf_window)) | |
248 | error ("Command attempted to use minibuffer while in minibuffer"); | |
249 | else | |
250 | /* If we're in another window, cancel the minibuffer that's active. */ | |
251 | Fthrow (Qexit, | |
252 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
253 | } | |
f927c5ae | 254 | |
748dc60a | 255 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 256 | |
c5b6b680 RS |
257 | choose_minibuf_frame (); |
258 | ||
0c94f256 RS |
259 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
260 | ||
f927c5ae | 261 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
262 | Fcurrent_window_configuration (Qnil)); |
263 | ||
ff11dfa1 JB |
264 | /* If the minibuffer window is on a different frame, save that |
265 | frame's configuration too. */ | |
75f00e72 | 266 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
ff11dfa1 | 267 | if (XFRAME (mini_frame) != selected_frame) |
5061d9c3 RS |
268 | record_unwind_protect (Fset_window_configuration, |
269 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
270 | |
271 | /* If the minibuffer is on an iconified or invisible frame, | |
272 | make it visible now. */ | |
273 | Fmake_frame_visible (mini_frame); | |
274 | ||
6a9ee000 RS |
275 | if (minibuffer_auto_raise) |
276 | Fraise_frame (mini_frame); | |
f927c5ae | 277 | |
748dc60a RS |
278 | /* We have to do this after saving the window configuration |
279 | since that is what restores the current buffer. */ | |
280 | ||
281 | /* Arrange to restore a number of minibuffer-related variables. | |
282 | We could bind each variable separately, but that would use lots of | |
283 | specpdl slots. */ | |
284 | minibuf_save_list | |
285 | = Fcons (Voverriding_local_map, | |
286 | Fcons (minibuf_window, minibuf_save_list)); | |
287 | minibuf_save_list | |
288 | = Fcons (minibuf_prompt, | |
289 | Fcons (make_number (minibuf_prompt_width), | |
290 | Fcons (Vhelp_form, | |
291 | Fcons (Vcurrent_prefix_arg, | |
292 | Fcons (Vminibuffer_history_position, | |
293 | Fcons (Vminibuffer_history_variable, | |
294 | minibuf_save_list)))))); | |
295 | ||
296 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
297 | minibuf_level++; | |
298 | ||
299 | /* Now that we can restore all those variables, start changing them. */ | |
300 | ||
301 | minibuf_prompt_width = 0; /* xdisp.c puts in the right value. */ | |
302 | minibuf_prompt = Fcopy_sequence (prompt); | |
303 | Vminibuffer_history_position = histpos; | |
304 | Vminibuffer_history_variable = histvar; | |
305 | Vhelp_form = Vminibuffer_help_form; | |
306 | ||
cee54539 | 307 | if (inherit_input_method) |
c75000c7 RS |
308 | { |
309 | /* `current-input-method' is buffer local. So, remeber it in | |
310 | INPUT_METHOD before changing the current buffer. */ | |
311 | input_method = Fsymbol_value (Qcurrent_input_method); | |
312 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
313 | } | |
cee54539 | 314 | |
748dc60a RS |
315 | /* Switch to the minibuffer. */ |
316 | ||
4f69d8f6 RS |
317 | minibuffer = get_minibuffer (minibuf_level); |
318 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
319 | |
320 | /* The current buffer's default directory is usually the right thing | |
321 | for our minibuffer here. However, if you're typing a command at | |
322 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
323 | the current_buffer, so reset_buffer leaves buf's default | |
324 | directory unchanged. This is a bummer when you've just started | |
325 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
326 | you think of something better to do? Find another buffer with a | |
327 | better directory, and use that one instead. */ | |
748dc60a RS |
328 | if (STRINGP (ambient_dir)) |
329 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
330 | else |
331 | { | |
332 | Lisp_Object buf_list; | |
333 | ||
334 | for (buf_list = Vbuffer_alist; | |
335 | CONSP (buf_list); | |
336 | buf_list = XCONS (buf_list)->cdr) | |
337 | { | |
1e62748e | 338 | Lisp_Object other_buf; |
64a3a3c0 | 339 | |
1e62748e | 340 | other_buf = XCONS (XCONS (buf_list)->car)->cdr; |
7510b296 | 341 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
342 | { |
343 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
344 | break; | |
345 | } | |
346 | } | |
347 | } | |
348 | ||
0abbff13 KH |
349 | if (XFRAME (mini_frame) != selected_frame) |
350 | Fredirect_frame_focus (Fselected_frame (), mini_frame); | |
43bad991 | 351 | |
f927c5ae JB |
352 | Vminibuf_scroll_window = selected_window; |
353 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); | |
f927c5ae | 354 | Fselect_window (minibuf_window); |
5a866662 | 355 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 356 | |
748dc60a RS |
357 | Fmake_local_variable (Qprint_escape_newlines); |
358 | print_escape_newlines = 1; | |
359 | ||
360 | /* Erase the buffer. */ | |
59115a22 RS |
361 | { |
362 | int count1 = specpdl_ptr - specpdl; | |
363 | specbind (Qinhibit_read_only, Qt); | |
364 | Ferase_buffer (); | |
365 | unbind_to (count1, Qnil); | |
366 | } | |
367 | ||
748dc60a | 368 | /* Put in the initial input. */ |
56a98455 | 369 | if (!NILP (initial)) |
f927c5ae JB |
370 | { |
371 | Finsert (1, &initial); | |
7510b296 | 372 | if (!NILP (backup_n) && INTEGERP (backup_n)) |
d50a3d2a | 373 | Fgoto_char (make_number (PT + XFASTINT (backup_n))); |
f927c5ae JB |
374 | } |
375 | ||
f927c5ae | 376 | echo_area_glyphs = 0; |
73168c8b RS |
377 | /* This is in case the minibuffer-setup-hook calls Fsit_for. */ |
378 | previous_echo_glyphs = 0; | |
f927c5ae | 379 | |
f927c5ae JB |
380 | current_buffer->keymap = map; |
381 | ||
cee54539 | 382 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 383 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
384 | call1 (Qactivate_input_method, input_method); |
385 | ||
c75000c7 RS |
386 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
387 | if (inherit_input_method) | |
1faf29d4 | 388 | current_buffer->enable_multibyte_characters = enable_multibyte; |
c75000c7 | 389 | |
5c781212 RS |
390 | /* Run our hook, but not if it is empty. |
391 | (run-hooks would do nothing if it is empty, | |
748dc60a | 392 | but it's important to save time here in the usual case). */ |
92d3b06e RS |
393 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
394 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
395 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
396 | ||
f927c5ae JB |
397 | /* ??? MCC did redraw_screen here if switching screens. */ |
398 | recursive_edit_1 (); | |
399 | ||
400 | /* If cursor is on the minibuffer line, | |
401 | show the user we have exited by putting it in column 0. */ | |
ff11dfa1 | 402 | if ((FRAME_CURSOR_Y (selected_frame) |
f927c5ae JB |
403 | >= XFASTINT (XWINDOW (minibuf_window)->top)) |
404 | && !noninteractive) | |
405 | { | |
85462999 RS |
406 | FRAME_CURSOR_X (selected_frame) |
407 | = FRAME_LEFT_SCROLL_BAR_WIDTH (selected_frame); | |
ff11dfa1 | 408 | update_frame (selected_frame, 1, 1); |
f927c5ae JB |
409 | } |
410 | ||
c3421833 | 411 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 412 | Fset_buffer (minibuffer); |
c3421833 | 413 | val = make_buffer_string (1, Z, allow_props); |
5bb8cce1 | 414 | #if 0 /* make_buffer_string should handle the gap. */ |
f927c5ae | 415 | bcopy (GAP_END_ADDR, XSTRING (val)->data + GPT - BEG, Z - GPT); |
5bb8cce1 | 416 | #endif |
770970cb | 417 | |
b278606c | 418 | /* VAL is the string of minibuffer text. */ |
7019cca7 KH |
419 | |
420 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (defalt)) | |
421 | val = defalt; | |
422 | ||
b278606c BF |
423 | last_minibuf_string = val; |
424 | ||
3ab14176 | 425 | /* Add the value to the appropriate history list unless it is empty. */ |
9f6131cf | 426 | if (XSTRING (val)->size != 0 |
3ab14176 KH |
427 | && SYMBOLP (Vminibuffer_history_variable) |
428 | && ! EQ (XSYMBOL (Vminibuffer_history_variable)->value, Qunbound)) | |
429 | { | |
430 | /* If the caller wanted to save the value read on a history list, | |
431 | then do so if the value is not already the front of the list. */ | |
432 | Lisp_Object histval; | |
433 | histval = Fsymbol_value (Vminibuffer_history_variable); | |
434 | ||
435 | /* The value of the history variable must be a cons or nil. Other | |
436 | values are unacceptable. We silently ignore these values. */ | |
437 | if (NILP (histval) | |
9f6131cf RS |
438 | || (CONSP (histval) |
439 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
440 | { |
441 | Lisp_Object length; | |
442 | ||
443 | histval = Fcons (last_minibuf_string, histval); | |
444 | Fset (Vminibuffer_history_variable, histval); | |
445 | ||
446 | /* Truncate if requested. */ | |
447 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
448 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
449 | if (INTEGERP (length)) |
450 | { | |
451 | if (XINT (length) <= 0) | |
452 | Fset (Vminibuffer_history_variable, Qnil); | |
453 | else | |
454 | { | |
455 | Lisp_Object temp; | |
456 | ||
457 | temp = Fnthcdr (Fsub1 (length), histval); | |
458 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
459 | } | |
460 | } | |
77aa8edf | 461 | } |
9f6131cf RS |
462 | } |
463 | ||
464 | /* If Lisp form desired instead of string, parse it. */ | |
465 | if (expflag) | |
466 | { | |
467 | Lisp_Object expr_and_pos; | |
468 | unsigned char *p; | |
469 | ||
470 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); | |
471 | /* Ignore trailing whitespace; any other trailing junk is an error. */ | |
472 | for (p = XSTRING (val)->data + XINT (Fcdr (expr_and_pos)); *p; p++) | |
473 | if (*p != ' ' && *p != '\t' && *p != '\n') | |
474 | error ("Trailing garbage following expression"); | |
475 | val = Fcar (expr_and_pos); | |
3ab14176 KH |
476 | } |
477 | ||
00a34088 RS |
478 | /* The appropriate frame will get selected |
479 | in set-window-configuration. */ | |
480 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
481 | } |
482 | ||
483 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
484 | depth = 0 is the lowest allowed argument, and that is the value | |
485 | used for nonrecursive minibuffer invocations */ | |
486 | ||
487 | Lisp_Object | |
488 | get_minibuffer (depth) | |
489 | int depth; | |
490 | { | |
491 | Lisp_Object tail, num, buf; | |
9f6c23bc | 492 | char name[24]; |
f927c5ae JB |
493 | extern Lisp_Object nconc2 (); |
494 | ||
5a866662 | 495 | XSETFASTINT (num, depth); |
f927c5ae | 496 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 497 | if (NILP (tail)) |
f927c5ae JB |
498 | { |
499 | tail = Fcons (Qnil, Qnil); | |
500 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
501 | } | |
502 | buf = Fcar (tail); | |
56a98455 | 503 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
504 | { |
505 | sprintf (name, " *Minibuf-%d*", depth); | |
506 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
507 | |
508 | /* Although the buffer's name starts with a space, undo should be | |
509 | enabled in it. */ | |
510 | Fbuffer_enable_undo (buf); | |
511 | ||
f927c5ae JB |
512 | XCONS (tail)->car = buf; |
513 | } | |
514 | else | |
5956f71d | 515 | { |
6b3faad8 RS |
516 | int count = specpdl_ptr - specpdl; |
517 | ||
5956f71d | 518 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
519 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
520 | Fset_buffer (buf); | |
521 | Fkill_all_local_variables (); | |
522 | unbind_to (count, Qnil); | |
5956f71d | 523 | } |
64a3a3c0 | 524 | |
f927c5ae JB |
525 | return buf; |
526 | } | |
527 | ||
528 | /* This function is called on exiting minibuffer, whether normally or not, | |
529 | and it restores the current window, buffer, etc. */ | |
530 | ||
9d815fd9 | 531 | static Lisp_Object |
43bad991 JB |
532 | read_minibuf_unwind (data) |
533 | Lisp_Object data; | |
f927c5ae | 534 | { |
c24e1160 | 535 | Lisp_Object old_deactivate_mark; |
59115a22 | 536 | Lisp_Object window; |
c24e1160 | 537 | |
0a1dd1c5 RS |
538 | /* We are exiting the minibuffer one way or the other, |
539 | so run the hook. */ | |
540 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
541 | && !NILP (Vrun_hooks)) | |
060ffec1 | 542 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 543 | |
f927c5ae | 544 | /* If this was a recursive minibuffer, |
59115a22 | 545 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 546 | minibuf_level--; |
f927c5ae | 547 | |
59115a22 RS |
548 | window = minibuf_window; |
549 | /* To keep things predictable, in case it matters, let's be in the minibuffer | |
550 | when we reset the relevant variables. */ | |
551 | Fset_buffer (XWINDOW (window)->buffer); | |
552 | ||
553 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
554 | minibuf_prompt = Fcar (minibuf_save_list); |
555 | minibuf_save_list = Fcdr (minibuf_save_list); | |
556 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
557 | minibuf_save_list = Fcdr (minibuf_save_list); | |
558 | Vhelp_form = Fcar (minibuf_save_list); | |
559 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 560 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
561 | minibuf_save_list = Fcdr (minibuf_save_list); |
562 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
563 | minibuf_save_list = Fcdr (minibuf_save_list); | |
564 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
565 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 566 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 567 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
568 | #if 0 |
569 | temp = Fcar (minibuf_save_list); | |
570 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
571 | minibuf_window = temp; | |
572 | #endif | |
30e13e56 | 573 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
574 | |
575 | /* Erase the minibuffer we were using at this level. */ | |
576 | { | |
577 | int count = specpdl_ptr - specpdl; | |
578 | /* Prevent error in erase-buffer. */ | |
579 | specbind (Qinhibit_read_only, Qt); | |
580 | old_deactivate_mark = Vdeactivate_mark; | |
581 | Ferase_buffer (); | |
582 | Vdeactivate_mark = old_deactivate_mark; | |
583 | unbind_to (count, Qnil); | |
584 | } | |
585 | ||
586 | /* Make sure minibuffer window is erased, not ignored. */ | |
587 | windows_or_buffers_changed++; | |
588 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 589 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 AS |
590 | |
591 | return Qnil; | |
f927c5ae JB |
592 | } |
593 | \f | |
b9d721de JB |
594 | |
595 | /* This comment supplies the doc string for read-from-minibuffer, | |
596 | for make-docfile to see. We cannot put this in the real DEFUN | |
597 | due to limits in the Unix cpp. | |
598 | ||
cee54539 | 599 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
f927c5ae JB |
600 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
601 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string\n\ | |
602 | to be inserted into the minibuffer before reading input.\n\ | |
770970cb | 603 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input\n\ |
18fef111 | 604 | is STRING, but point is placed at position POSITION in the minibuffer.\n\ |
f927c5ae JB |
605 | Third arg KEYMAP is a keymap to use whilst reading;\n\ |
606 | if omitted or nil, the default is `minibuffer-local-map'.\n\ | |
607 | If fourth arg READ is non-nil, then interpret the result as a lisp object\n\ | |
608 | and return that object:\n\ | |
609 | in other words, do `(car (read-from-string INPUT-STRING))'\n\ | |
770970cb RS |
610 | Fifth arg HIST, if non-nil, specifies a history list\n\ |
611 | and optionally the initial position in the list.\n\ | |
612 | It can be a symbol, which is the history list variable to use,\n\ | |
613 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
614 | In that case, HISTVAR is the history list variable to use,\n\ | |
615 | and HISTPOS is the initial position (the position in the list\n\ | |
616 | which INITIAL-CONTENTS corresponds to).\n\ | |
e5d4686b RS |
617 | Positions are counted starting from 1 at the beginning of the list.\n\ |
618 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is used\n\ | |
619 | for history commands, and as the value to return if the user enters\n\ | |
620 | the empty string.\n\ | |
c8c15521 RS |
621 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
622 | the current input method and the setting of enable-multibyte-characters.\n\ | |
c3421833 RS |
623 | If the variable `minibuffer-allow-text-properties is non-nil,\n\ |
624 | then the string which is returned includes whatever text properties\n\ | |
cee54539 KH |
625 | were present in the minibuffer. Otherwise the value has no text properties.") |
626 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
627 | */ | |
b9d721de | 628 | |
cee54539 | 629 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
b9d721de | 630 | 0 /* See immediately above */) |
cee54539 | 631 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) |
e5d4686b | 632 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 633 | Lisp_Object inherit_input_method; |
f927c5ae JB |
634 | { |
635 | int pos = 0; | |
e5d4686b | 636 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
637 | struct gcpro gcpro1; |
638 | ||
770970cb | 639 | position = Qnil; |
f927c5ae JB |
640 | |
641 | CHECK_STRING (prompt, 0); | |
68e5a8a2 | 642 | if (!NILP (initial_contents)) |
f927c5ae | 643 | { |
7510b296 | 644 | if (CONSP (initial_contents)) |
770970cb | 645 | { |
68e5a8a2 RS |
646 | position = Fcdr (initial_contents); |
647 | initial_contents = Fcar (initial_contents); | |
770970cb | 648 | } |
68e5a8a2 | 649 | CHECK_STRING (initial_contents, 1); |
56a98455 | 650 | if (!NILP (position)) |
f927c5ae JB |
651 | { |
652 | CHECK_NUMBER (position, 0); | |
653 | /* Convert to distance from end of input. */ | |
18fef111 RS |
654 | if (XINT (position) < 1) |
655 | /* A number too small means the beginning of the string. */ | |
656 | pos = - XSTRING (initial_contents)->size; | |
657 | else | |
658 | pos = XINT (position) - 1 - XSTRING (initial_contents)->size; | |
f927c5ae JB |
659 | } |
660 | } | |
661 | ||
56a98455 | 662 | if (NILP (keymap)) |
f927c5ae JB |
663 | keymap = Vminibuffer_local_map; |
664 | else | |
b7df898e | 665 | keymap = get_keymap (keymap); |
770970cb | 666 | |
7510b296 | 667 | if (SYMBOLP (hist)) |
770970cb RS |
668 | { |
669 | histvar = hist; | |
670 | histpos = Qnil; | |
671 | } | |
672 | else | |
673 | { | |
674 | histvar = Fcar_safe (hist); | |
675 | histpos = Fcdr_safe (hist); | |
676 | } | |
677 | if (NILP (histvar)) | |
678 | histvar = Qminibuffer_history; | |
679 | if (NILP (histpos)) | |
5a866662 | 680 | XSETFASTINT (histpos, 0); |
770970cb | 681 | |
1d8d92f4 | 682 | GCPRO1 (default_value); |
e5d4686b RS |
683 | val = read_minibuf (keymap, initial_contents, prompt, |
684 | make_number (pos), !NILP (read), | |
c3421833 | 685 | histvar, histpos, default_value, |
cee54539 KH |
686 | minibuffer_allow_text_properties, |
687 | !NILP (inherit_input_method)); | |
1d8d92f4 | 688 | UNGCPRO; |
e5d4686b | 689 | return val; |
f927c5ae JB |
690 | } |
691 | ||
692 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
693 | "Return a Lisp object read using the minibuffer.\n\ | |
694 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
695 | is a string to insert in the minibuffer before reading.") | |
696 | (prompt, initial_contents) | |
697 | Lisp_Object prompt, initial_contents; | |
698 | { | |
699 | CHECK_STRING (prompt, 0); | |
56a98455 | 700 | if (!NILP (initial_contents)) |
a1b4b084 | 701 | CHECK_STRING (initial_contents, 1); |
770970cb | 702 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 703 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 704 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
705 | } |
706 | ||
707 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
708 | "Return value of Lisp expression read using the minibuffer.\n\ | |
709 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
710 | is a string to insert in the minibuffer before reading.") | |
711 | (prompt, initial_contents) | |
712 | Lisp_Object prompt, initial_contents; | |
713 | { | |
714 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
715 | } | |
716 | ||
717 | /* Functions that use the minibuffer to read various things. */ | |
718 | ||
cee54539 | 719 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
f927c5ae | 720 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
80896ab4 RS |
721 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading.\n\ |
722 | The third arg HISTORY, if non-nil, specifies a history list\n\ | |
723 | and optionally the initial position in the list.\n\ | |
cee54539 | 724 | See `read-from-minibuffer' for details of HISTORY argument.\n\ |
c8c15521 RS |
725 | Fourth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
726 | the current input method and the setting of enable-multibyte-characters.") | |
cee54539 | 727 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 728 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 729 | Lisp_Object inherit_input_method; |
f927c5ae | 730 | { |
e5d4686b | 731 | return Fread_from_minibuffer (prompt, initial_input, Qnil, |
cee54539 KH |
732 | Qnil, history, default_value, |
733 | inherit_input_method); | |
f927c5ae JB |
734 | } |
735 | ||
cee54539 | 736 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
f927c5ae | 737 | "Args PROMPT and INIT, strings. Read a string from the terminal, not allowing blanks.\n\ |
cee54539 | 738 | Prompt with PROMPT, and provide INIT as an initial value of the input string.\n\ |
c8c15521 RS |
739 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
740 | the current input method and the setting of enable-multibyte-characters.") | |
cee54539 KH |
741 | (prompt, init, inherit_input_method) |
742 | Lisp_Object prompt, init, inherit_input_method; | |
f927c5ae JB |
743 | { |
744 | CHECK_STRING (prompt, 0); | |
56a98455 | 745 | if (! NILP (init)) |
f927c5ae JB |
746 | CHECK_STRING (init, 1); |
747 | ||
e5d4686b | 748 | return read_minibuf (Vminibuffer_local_ns_map, init, prompt, Qnil, |
cee54539 KH |
749 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
750 | !NILP (inherit_input_method)); | |
f927c5ae JB |
751 | } |
752 | ||
e5d4686b RS |
753 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
754 | "Read the name of a command and return as a symbol.\n\ | |
755 | Prompts with PROMPT. By default, return DEFAULT-VALUE.") | |
756 | (prompt, default_value) | |
757 | Lisp_Object prompt, default_value; | |
f927c5ae | 758 | { |
e5d4686b | 759 | return Fintern (Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, |
cee54539 | 760 | Qnil, Qnil, default_value, Qnil), |
f927c5ae JB |
761 | Qnil); |
762 | } | |
763 | ||
764 | #ifdef NOTDEF | |
765 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
766 | "One arg PROMPT, a string. Read the name of a function and return as a symbol.\n\ | |
767 | Prompts with PROMPT.") | |
768 | (prompt) | |
769 | Lisp_Object prompt; | |
770 | { | |
cee54539 | 771 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
772 | Qnil); |
773 | } | |
774 | #endif /* NOTDEF */ | |
775 | ||
e5d4686b RS |
776 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
777 | "Read the name of a user variable and return it as a symbol.\n\ | |
778 | Prompts with PROMPT. By default, return DEFAULT-VALUE.\n\ | |
f927c5ae | 779 | A user variable is one whose documentation starts with a `*' character.") |
e5d4686b RS |
780 | (prompt, default_value) |
781 | Lisp_Object prompt, default_value; | |
f927c5ae JB |
782 | { |
783 | return Fintern (Fcompleting_read (prompt, Vobarray, | |
e5d4686b | 784 | Quser_variable_p, Qt, |
cee54539 | 785 | Qnil, Qnil, default_value, Qnil), |
f927c5ae JB |
786 | Qnil); |
787 | } | |
788 | ||
789 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
790 | "One arg PROMPT, a string. Read the name of a buffer and return as a string.\n\ | |
791 | Prompts with PROMPT.\n\ | |
e5d4686b | 792 | Optional second arg DEF is value to return if user enters an empty line.\n\ |
f927c5ae JB |
793 | If optional third arg REQUIRE-MATCH is non-nil, only existing buffer names are allowed.") |
794 | (prompt, def, require_match) | |
795 | Lisp_Object prompt, def, require_match; | |
796 | { | |
797 | Lisp_Object tem; | |
eebbfb01 KH |
798 | Lisp_Object args[4]; |
799 | ||
7510b296 | 800 | if (BUFFERP (def)) |
f927c5ae | 801 | def = XBUFFER (def)->name; |
eebbfb01 KH |
802 | |
803 | if (NILP (Vread_buffer_function)) | |
804 | { | |
805 | if (!NILP (def)) | |
806 | { | |
807 | args[0] = build_string ("%s(default %s) "); | |
808 | args[1] = prompt; | |
809 | args[2] = def; | |
810 | prompt = Fformat (3, args); | |
811 | } | |
812 | ||
813 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
814 | require_match, Qnil, Qnil, def, Qnil); | |
815 | } | |
816 | else | |
f927c5ae | 817 | { |
eebbfb01 | 818 | args[0] = Vread_buffer_function; |
f927c5ae JB |
819 | args[1] = prompt; |
820 | args[2] = def; | |
eebbfb01 KH |
821 | args[3] = require_match; |
822 | return Ffuncall(4, args); | |
f927c5ae | 823 | } |
f927c5ae JB |
824 | } |
825 | \f | |
826 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, | |
827 | "Return common substring of all completions of STRING in ALIST.\n\ | |
828 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
829 | All that match are compared together; the longest initial sequence\n\ | |
830 | common to all matches is returned as a string.\n\ | |
831 | If there is no match at all, nil is returned.\n\ | |
832 | For an exact match, t is returned.\n\ | |
833 | \n\ | |
834 | ALIST can be an obarray instead of an alist.\n\ | |
835 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
836 | \n\ | |
837 | ALIST can also be a function to do the completion itself.\n\ | |
838 | It receives three arguments: the values STRING, PREDICATE and nil.\n\ | |
839 | Whatever it returns becomes the value of `try-completion'.\n\ | |
840 | \n\ | |
841 | If optional third argument PREDICATE is non-nil,\n\ | |
842 | it is used to test each possible match.\n\ | |
843 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
844 | The argument given to PREDICATE is the alist element\n\ |
845 | or the symbol from the obarray.") | |
7efd36fc EN |
846 | (string, alist, predicate) |
847 | Lisp_Object string, alist, predicate; | |
f927c5ae JB |
848 | { |
849 | Lisp_Object bestmatch, tail, elt, eltstring; | |
850 | int bestmatchsize; | |
851 | int compare, matchsize; | |
56a98455 | 852 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
853 | int index, obsize; |
854 | int matchcount = 0; | |
855 | Lisp_Object bucket, zero, end, tem; | |
856 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
857 | ||
858 | CHECK_STRING (string, 0); | |
7510b296 | 859 | if (!list && !VECTORP (alist)) |
7efd36fc | 860 | return call3 (alist, string, predicate, Qnil); |
f927c5ae JB |
861 | |
862 | bestmatch = Qnil; | |
863 | ||
864 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
865 | tail = alist; | |
866 | if (! list) | |
867 | { | |
868 | index = 0; | |
869 | obsize = XVECTOR (alist)->size; | |
870 | bucket = XVECTOR (alist)->contents[index]; | |
871 | } | |
872 | ||
873 | while (1) | |
874 | { | |
875 | /* Get the next element of the alist or obarray. */ | |
876 | /* Exit the loop if the elements are all used up. */ | |
877 | /* elt gets the alist element or symbol. | |
878 | eltstring gets the name to check as a completion. */ | |
879 | ||
880 | if (list) | |
881 | { | |
56a98455 | 882 | if (NILP (tail)) |
f927c5ae JB |
883 | break; |
884 | elt = Fcar (tail); | |
885 | eltstring = Fcar (elt); | |
886 | tail = Fcdr (tail); | |
887 | } | |
888 | else | |
889 | { | |
890 | if (XFASTINT (bucket) != 0) | |
891 | { | |
892 | elt = bucket; | |
893 | eltstring = Fsymbol_name (elt); | |
894 | if (XSYMBOL (bucket)->next) | |
895 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
896 | else | |
5a866662 | 897 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
898 | } |
899 | else if (++index >= obsize) | |
900 | break; | |
901 | else | |
902 | { | |
903 | bucket = XVECTOR (alist)->contents[index]; | |
904 | continue; | |
905 | } | |
906 | } | |
907 | ||
908 | /* Is this element a possible completion? */ | |
909 | ||
7510b296 | 910 | if (STRINGP (eltstring) |
42006772 RS |
911 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
912 | && 0 > scmp (XSTRING (eltstring)->data, XSTRING (string)->data, | |
913 | XSTRING (string)->size)) | |
f927c5ae JB |
914 | { |
915 | /* Yes. */ | |
42006772 RS |
916 | Lisp_Object regexps; |
917 | Lisp_Object zero; | |
5a866662 | 918 | XSETFASTINT (zero, 0); |
42006772 RS |
919 | |
920 | /* Ignore this element if it fails to match all the regexps. */ | |
921 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
922 | regexps = XCONS (regexps)->cdr) | |
923 | { | |
924 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
925 | if (NILP (tem)) | |
926 | break; | |
927 | } | |
928 | if (CONSP (regexps)) | |
929 | continue; | |
930 | ||
f927c5ae JB |
931 | /* Ignore this element if there is a predicate |
932 | and the predicate doesn't like it. */ | |
933 | ||
7efd36fc | 934 | if (!NILP (predicate)) |
f927c5ae | 935 | { |
7efd36fc | 936 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
937 | tem = Fcommandp (elt); |
938 | else | |
939 | { | |
940 | GCPRO4 (tail, string, eltstring, bestmatch); | |
7efd36fc | 941 | tem = call1 (predicate, elt); |
f927c5ae JB |
942 | UNGCPRO; |
943 | } | |
56a98455 | 944 | if (NILP (tem)) continue; |
f927c5ae JB |
945 | } |
946 | ||
947 | /* Update computation of how much all possible completions match */ | |
948 | ||
949 | matchcount++; | |
56a98455 | 950 | if (NILP (bestmatch)) |
f927c5ae JB |
951 | bestmatch = eltstring, bestmatchsize = XSTRING (eltstring)->size; |
952 | else | |
953 | { | |
954 | compare = min (bestmatchsize, XSTRING (eltstring)->size); | |
955 | matchsize = scmp (XSTRING (bestmatch)->data, | |
956 | XSTRING (eltstring)->data, | |
957 | compare); | |
52b14ac0 JB |
958 | if (matchsize < 0) |
959 | matchsize = compare; | |
960 | if (completion_ignore_case) | |
961 | { | |
962 | /* If this is an exact match except for case, | |
963 | use it as the best match rather than one that is not an | |
964 | exact match. This way, we get the case pattern | |
965 | of the actual match. */ | |
966 | if ((matchsize == XSTRING (eltstring)->size | |
967 | && matchsize < XSTRING (bestmatch)->size) | |
968 | || | |
969 | /* If there is more than one exact match ignoring case, | |
970 | and one of them is exact including case, | |
971 | prefer that one. */ | |
972 | /* If there is no exact match ignoring case, | |
973 | prefer a match that does not change the case | |
974 | of the input. */ | |
975 | ((matchsize == XSTRING (eltstring)->size) | |
976 | == | |
977 | (matchsize == XSTRING (bestmatch)->size) | |
978 | && !bcmp (XSTRING (eltstring)->data, | |
979 | XSTRING (string)->data, XSTRING (string)->size) | |
980 | && bcmp (XSTRING (bestmatch)->data, | |
981 | XSTRING (string)->data, XSTRING (string)->size))) | |
982 | bestmatch = eltstring; | |
983 | } | |
984 | bestmatchsize = matchsize; | |
f927c5ae JB |
985 | } |
986 | } | |
987 | } | |
988 | ||
56a98455 | 989 | if (NILP (bestmatch)) |
f927c5ae | 990 | return Qnil; /* No completions found */ |
52b14ac0 JB |
991 | /* If we are ignoring case, and there is no exact match, |
992 | and no additional text was supplied, | |
993 | don't change the case of what the user typed. */ | |
994 | if (completion_ignore_case && bestmatchsize == XSTRING (string)->size | |
995 | && XSTRING (bestmatch)->size > bestmatchsize) | |
996 | return string; | |
997 | ||
998 | /* Return t if the supplied string is an exact match (counting case); | |
999 | it does not require any change to be made. */ | |
1000 | if (matchcount == 1 && bestmatchsize == XSTRING (string)->size | |
1001 | && !bcmp (XSTRING (bestmatch)->data, XSTRING (string)->data, | |
1002 | bestmatchsize)) | |
f927c5ae JB |
1003 | return Qt; |
1004 | ||
5a866662 KH |
1005 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1006 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1007 | return Fsubstring (bestmatch, zero, end); |
1008 | } | |
1009 | ||
1010 | /* Compare exactly LEN chars of strings at S1 and S2, | |
1011 | ignoring case if appropriate. | |
1012 | Return -1 if strings match, | |
1013 | else number of chars that match at the beginning. */ | |
1014 | ||
829f7f7c | 1015 | int |
f927c5ae | 1016 | scmp (s1, s2, len) |
829f7f7c | 1017 | register unsigned char *s1, *s2; |
f927c5ae JB |
1018 | int len; |
1019 | { | |
1020 | register int l = len; | |
d50a3d2a | 1021 | register unsigned char *start = s1; |
f927c5ae JB |
1022 | |
1023 | if (completion_ignore_case) | |
1024 | { | |
2e34157c | 1025 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) |
f927c5ae JB |
1026 | l--; |
1027 | } | |
1028 | else | |
1029 | { | |
1030 | while (l && *s1++ == *s2++) | |
1031 | l--; | |
1032 | } | |
1033 | if (l == 0) | |
1034 | return -1; | |
829f7f7c | 1035 | else |
d50a3d2a KH |
1036 | { |
1037 | int match = len - l; | |
1038 | ||
1039 | /* Now *--S1 is the unmatching byte. If it is in the middle of | |
1040 | multi-byte form, we must say that the multi-byte character | |
1041 | there doesn't match. */ | |
1042 | while (match && *--s1 >= 0xA0) match--; | |
1043 | return match; | |
1044 | } | |
f927c5ae JB |
1045 | } |
1046 | \f | |
89a255dc | 1047 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
f927c5ae JB |
1048 | "Search for partial matches to STRING in ALIST.\n\ |
1049 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
1050 | The value is a list of all the strings from ALIST that match.\n\ | |
89a255dc | 1051 | \n\ |
f927c5ae JB |
1052 | ALIST can be an obarray instead of an alist.\n\ |
1053 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
1054 | \n\ | |
1055 | ALIST can also be a function to do the completion itself.\n\ | |
1056 | It receives three arguments: the values STRING, PREDICATE and t.\n\ | |
1057 | Whatever it returns becomes the value of `all-completion'.\n\ | |
1058 | \n\ | |
1059 | If optional third argument PREDICATE is non-nil,\n\ | |
1060 | it is used to test each possible match.\n\ | |
1061 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
1062 | The argument given to PREDICATE is the alist element\n\ |
1063 | or the symbol from the obarray.\n\ | |
1064 | \n\ | |
1065 | If the optional fourth argument HIDE-SPACES is non-nil,\n\ | |
1066 | strings in ALIST that start with a space\n\ | |
1067 | are ignored unless STRING itself starts with a space.") | |
7efd36fc EN |
1068 | (string, alist, predicate, hide_spaces) |
1069 | Lisp_Object string, alist, predicate, hide_spaces; | |
f927c5ae JB |
1070 | { |
1071 | Lisp_Object tail, elt, eltstring; | |
1072 | Lisp_Object allmatches; | |
56a98455 | 1073 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
1074 | int index, obsize; |
1075 | Lisp_Object bucket, tem; | |
1076 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1077 | ||
1078 | CHECK_STRING (string, 0); | |
7510b296 | 1079 | if (!list && !VECTORP (alist)) |
f927c5ae | 1080 | { |
7efd36fc | 1081 | return call3 (alist, string, predicate, Qt); |
f927c5ae JB |
1082 | } |
1083 | allmatches = Qnil; | |
1084 | ||
1085 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1086 | tail = alist; | |
1087 | if (! list) | |
1088 | { | |
1089 | index = 0; | |
1090 | obsize = XVECTOR (alist)->size; | |
1091 | bucket = XVECTOR (alist)->contents[index]; | |
1092 | } | |
1093 | ||
1094 | while (1) | |
1095 | { | |
1096 | /* Get the next element of the alist or obarray. */ | |
1097 | /* Exit the loop if the elements are all used up. */ | |
1098 | /* elt gets the alist element or symbol. | |
1099 | eltstring gets the name to check as a completion. */ | |
1100 | ||
1101 | if (list) | |
1102 | { | |
56a98455 | 1103 | if (NILP (tail)) |
f927c5ae JB |
1104 | break; |
1105 | elt = Fcar (tail); | |
1106 | eltstring = Fcar (elt); | |
1107 | tail = Fcdr (tail); | |
1108 | } | |
1109 | else | |
1110 | { | |
1111 | if (XFASTINT (bucket) != 0) | |
1112 | { | |
1113 | elt = bucket; | |
1114 | eltstring = Fsymbol_name (elt); | |
1115 | if (XSYMBOL (bucket)->next) | |
1116 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1117 | else | |
5a866662 | 1118 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1119 | } |
1120 | else if (++index >= obsize) | |
1121 | break; | |
1122 | else | |
1123 | { | |
1124 | bucket = XVECTOR (alist)->contents[index]; | |
1125 | continue; | |
1126 | } | |
1127 | } | |
1128 | ||
1129 | /* Is this element a possible completion? */ | |
1130 | ||
7510b296 | 1131 | if (STRINGP (eltstring) |
2cbaf886 | 1132 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
89a255dc | 1133 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 RS |
1134 | unless the input starts with space. */ |
1135 | && ((XSTRING (string)->size > 0 && XSTRING (string)->data[0] == ' ') | |
89a255dc RS |
1136 | || XSTRING (eltstring)->data[0] != ' ' |
1137 | || NILP (hide_spaces)) | |
2cbaf886 RS |
1138 | && 0 > scmp (XSTRING (eltstring)->data, XSTRING (string)->data, |
1139 | XSTRING (string)->size)) | |
f927c5ae JB |
1140 | { |
1141 | /* Yes. */ | |
42006772 RS |
1142 | Lisp_Object regexps; |
1143 | Lisp_Object zero; | |
5a866662 | 1144 | XSETFASTINT (zero, 0); |
42006772 RS |
1145 | |
1146 | /* Ignore this element if it fails to match all the regexps. */ | |
1147 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1148 | regexps = XCONS (regexps)->cdr) | |
1149 | { | |
1150 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
1151 | if (NILP (tem)) | |
1152 | break; | |
1153 | } | |
1154 | if (CONSP (regexps)) | |
1155 | continue; | |
1156 | ||
f927c5ae JB |
1157 | /* Ignore this element if there is a predicate |
1158 | and the predicate doesn't like it. */ | |
1159 | ||
7efd36fc | 1160 | if (!NILP (predicate)) |
f927c5ae | 1161 | { |
7efd36fc | 1162 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1163 | tem = Fcommandp (elt); |
1164 | else | |
1165 | { | |
1166 | GCPRO4 (tail, eltstring, allmatches, string); | |
7efd36fc | 1167 | tem = call1 (predicate, elt); |
f927c5ae JB |
1168 | UNGCPRO; |
1169 | } | |
56a98455 | 1170 | if (NILP (tem)) continue; |
f927c5ae JB |
1171 | } |
1172 | /* Ok => put it on the list. */ | |
1173 | allmatches = Fcons (eltstring, allmatches); | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | return Fnreverse (allmatches); | |
1178 | } | |
1179 | \f | |
1180 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1181 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1182 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
1183 | ||
b9d721de JB |
1184 | /* This comment supplies the doc string for completing-read, |
1185 | for make-docfile to see. We cannot put this in the real DEFUN | |
1186 | due to limits in the Unix cpp. | |
1187 | ||
cee54539 | 1188 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
f927c5ae | 1189 | "Read a string in the minibuffer, with completion.\n\ |
f927c5ae JB |
1190 | PROMPT is a string to prompt with; normally it ends in a colon and a space.\n\ |
1191 | TABLE is an alist whose elements' cars are strings, or an obarray.\n\ | |
1192 | PREDICATE limits completion to a subset of TABLE.\n\ | |
6b3faad8 RS |
1193 | See `try-completion' and `all-completions' for more details |
1194 | on completion, TABLE, and PREDICATE.\n\ | |
cbbc3917 | 1195 | \n\ |
f927c5ae | 1196 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless\n\ |
4ced3209 | 1197 | the input is (or completes to) an element of TABLE or is null.\n\ |
f927c5ae | 1198 | If it is also not t, Return does not exit if it does non-null completion.\n\ |
fab95625 | 1199 | If the input is null, `completing-read' returns an empty string,\n\ |
cbbc3917 RS |
1200 | regardless of the value of REQUIRE-MATCH.\n\ |
1201 | \n\ | |
f927c5ae | 1202 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.\n\ |
770970cb RS |
1203 | If it is (STRING . POSITION), the initial input\n\ |
1204 | is STRING, but point is placed POSITION characters into the string.\n\ | |
1205 | HIST, if non-nil, specifies a history list\n\ | |
1206 | and optionally the initial position in the list.\n\ | |
1207 | It can be a symbol, which is the history list variable to use,\n\ | |
1208 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
1209 | In that case, HISTVAR is the history list variable to use,\n\ | |
1210 | and HISTPOS is the initial position (the position in the list\n\ | |
1211 | which INITIAL-CONTENTS corresponds to).\n\ | |
1212 | Positions are counted starting from 1 at the beginning of the list.\n\ | |
cee54539 KH |
1213 | DEF, if non-nil, is the default value.\n\ |
1214 | \n\ | |
1215 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits\n\ | |
c8c15521 | 1216 | the current input method and the setting of enable-multibyte-characters.\n\ |
cee54539 | 1217 | \n\ |
770970cb | 1218 | Completion ignores case if the ambient value of\n\ |
b9d721de JB |
1219 | `completion-ignore-case' is non-nil." |
1220 | */ | |
cee54539 | 1221 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
b9d721de | 1222 | 0 /* See immediately above */) |
cee54539 | 1223 | (prompt, table, predicate, require_match, init, hist, def, inherit_input_method) |
e5d4686b | 1224 | Lisp_Object prompt, table, predicate, require_match, init, hist, def; |
cee54539 | 1225 | Lisp_Object inherit_input_method; |
f927c5ae | 1226 | { |
770970cb RS |
1227 | Lisp_Object val, histvar, histpos, position; |
1228 | int pos = 0; | |
f927c5ae | 1229 | int count = specpdl_ptr - specpdl; |
0c8ee1a2 | 1230 | struct gcpro gcpro1; |
dd9d15d6 | 1231 | int disable_multibyte = EQ (table, Qread_file_name_internal); |
0c8ee1a2 RS |
1232 | |
1233 | GCPRO1 (def); | |
1234 | ||
f927c5ae | 1235 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1236 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae JB |
1237 | specbind (Qminibuffer_completion_confirm, |
1238 | EQ (require_match, Qt) ? Qnil : Qt); | |
1239 | last_exact_completion = Qnil; | |
770970cb RS |
1240 | |
1241 | position = Qnil; | |
1242 | if (!NILP (init)) | |
1243 | { | |
7510b296 | 1244 | if (CONSP (init)) |
770970cb RS |
1245 | { |
1246 | position = Fcdr (init); | |
1247 | init = Fcar (init); | |
1248 | } | |
1249 | CHECK_STRING (init, 0); | |
1250 | if (!NILP (position)) | |
1251 | { | |
1252 | CHECK_NUMBER (position, 0); | |
1253 | /* Convert to distance from end of input. */ | |
5dadd3a2 | 1254 | pos = XINT (position) - XSTRING (init)->size; |
770970cb RS |
1255 | } |
1256 | } | |
1257 | ||
7510b296 | 1258 | if (SYMBOLP (hist)) |
770970cb RS |
1259 | { |
1260 | histvar = hist; | |
1261 | histpos = Qnil; | |
1262 | } | |
1263 | else | |
1264 | { | |
1265 | histvar = Fcar_safe (hist); | |
1266 | histpos = Fcdr_safe (hist); | |
1267 | } | |
1268 | if (NILP (histvar)) | |
1269 | histvar = Qminibuffer_history; | |
1270 | if (NILP (histpos)) | |
5a866662 | 1271 | XSETFASTINT (histpos, 0); |
770970cb | 1272 | |
56a98455 | 1273 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1274 | ? Vminibuffer_local_completion_map |
1275 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1276 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1277 | histvar, histpos, def, 0, |
1278 | !NILP (inherit_input_method)); | |
0c8ee1a2 | 1279 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1280 | } |
1281 | \f | |
f927c5ae | 1282 | Lisp_Object Fminibuffer_completion_help (); |
52b14ac0 | 1283 | Lisp_Object assoc_for_completion (); |
5d2ca7ae RS |
1284 | /* A subroutine of Fintern_soft. */ |
1285 | extern Lisp_Object oblookup (); | |
1286 | ||
1287 | ||
1288 | /* Test whether TXT is an exact completion. */ | |
1289 | Lisp_Object | |
1290 | test_completion (txt) | |
1291 | Lisp_Object txt; | |
1292 | { | |
1293 | Lisp_Object tem; | |
1294 | ||
1295 | if (CONSP (Vminibuffer_completion_table) | |
1296 | || NILP (Vminibuffer_completion_table)) | |
1297 | return assoc_for_completion (txt, Vminibuffer_completion_table); | |
1298 | else if (VECTORP (Vminibuffer_completion_table)) | |
1299 | { | |
1300 | /* Bypass intern-soft as that loses for nil */ | |
1301 | tem = oblookup (Vminibuffer_completion_table, | |
1302 | XSTRING (txt)->data, XSTRING (txt)->size); | |
44472c88 | 1303 | if (!SYMBOLP (tem)) |
5d2ca7ae RS |
1304 | return Qnil; |
1305 | else if (!NILP (Vminibuffer_completion_predicate)) | |
1306 | return call1 (Vminibuffer_completion_predicate, tem); | |
1307 | else | |
1308 | return Qt; | |
1309 | } | |
1310 | else | |
1311 | return call3 (Vminibuffer_completion_table, txt, | |
1312 | Vminibuffer_completion_predicate, Qlambda); | |
1313 | } | |
f927c5ae JB |
1314 | |
1315 | /* returns: | |
1316 | * 0 no possible completion | |
1317 | * 1 was already an exact and unique completion | |
1318 | * 3 was already an exact completion | |
1319 | * 4 completed to an exact completion | |
1320 | * 5 some completion happened | |
1321 | * 6 no completion happened | |
1322 | */ | |
1323 | int | |
1324 | do_completion () | |
1325 | { | |
1326 | Lisp_Object completion, tem; | |
1327 | int completedp; | |
1328 | Lisp_Object last; | |
1e00c2ff | 1329 | struct gcpro gcpro1, gcpro2; |
f927c5ae JB |
1330 | |
1331 | completion = Ftry_completion (Fbuffer_string (), Vminibuffer_completion_table, | |
1332 | Vminibuffer_completion_predicate); | |
1333 | last = last_exact_completion; | |
1334 | last_exact_completion = Qnil; | |
1335 | ||
4f9b95e5 KH |
1336 | GCPRO2 (completion, last); |
1337 | ||
56a98455 | 1338 | if (NILP (completion)) |
f927c5ae JB |
1339 | { |
1340 | bitch_at_user (); | |
1341 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1342 | UNGCPRO; |
f927c5ae JB |
1343 | return 0; |
1344 | } | |
1345 | ||
1346 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1347 | { |
1348 | UNGCPRO; | |
1349 | return 1; | |
1350 | } | |
f927c5ae JB |
1351 | |
1352 | /* compiler bug */ | |
1353 | tem = Fstring_equal (completion, Fbuffer_string()); | |
56a98455 | 1354 | if (completedp = NILP (tem)) |
f927c5ae JB |
1355 | { |
1356 | Ferase_buffer (); /* Some completion happened */ | |
1357 | Finsert (1, &completion); | |
1358 | } | |
1359 | ||
1360 | /* It did find a match. Do we match some possibility exactly now? */ | |
5d2ca7ae | 1361 | tem = test_completion (Fbuffer_string ()); |
56a98455 | 1362 | if (NILP (tem)) |
1e00c2ff KH |
1363 | { |
1364 | /* not an exact match */ | |
1365 | UNGCPRO; | |
f927c5ae JB |
1366 | if (completedp) |
1367 | return 5; | |
1368 | else if (auto_help) | |
1369 | Fminibuffer_completion_help (); | |
1370 | else | |
1371 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1372 | return 6; | |
1373 | } | |
1374 | else if (completedp) | |
1e00c2ff KH |
1375 | { |
1376 | UNGCPRO; | |
1377 | return 4; | |
1378 | } | |
f927c5ae JB |
1379 | /* If the last exact completion and this one were the same, |
1380 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1381 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1382 | last_exact_completion = completion; |
56a98455 | 1383 | if (!NILP (last)) |
f927c5ae JB |
1384 | { |
1385 | tem = Fbuffer_string (); | |
56a98455 | 1386 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1387 | Fminibuffer_completion_help (); |
1388 | } | |
1e00c2ff | 1389 | UNGCPRO; |
f927c5ae | 1390 | return 3; |
f927c5ae | 1391 | } |
1e00c2ff | 1392 | |
52b14ac0 JB |
1393 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1394 | ||
1395 | Lisp_Object | |
1396 | assoc_for_completion (key, list) | |
1397 | register Lisp_Object key; | |
1398 | Lisp_Object list; | |
1399 | { | |
1400 | register Lisp_Object tail; | |
1401 | ||
1402 | if (completion_ignore_case) | |
1403 | key = Fupcase (key); | |
1404 | ||
56a98455 | 1405 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1406 | { |
1407 | register Lisp_Object elt, tem, thiscar; | |
1408 | elt = Fcar (tail); | |
1409 | if (!CONSP (elt)) continue; | |
1410 | thiscar = Fcar (elt); | |
7510b296 | 1411 | if (!STRINGP (thiscar)) |
52b14ac0 JB |
1412 | continue; |
1413 | if (completion_ignore_case) | |
1414 | thiscar = Fupcase (thiscar); | |
1415 | tem = Fequal (thiscar, key); | |
56a98455 | 1416 | if (!NILP (tem)) return elt; |
52b14ac0 JB |
1417 | QUIT; |
1418 | } | |
1419 | return Qnil; | |
1420 | } | |
f927c5ae JB |
1421 | |
1422 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
6300d782 | 1423 | "Complete the minibuffer contents as far as possible.\n\ |
2cb6da5c RS |
1424 | Return nil if there is no valid completion, else t.\n\ |
1425 | If no characters can be completed, display a list of possible completions.\n\ | |
1426 | If you repeat this command after it displayed such a list,\n\ | |
1427 | scroll the window of possible completions.") | |
f927c5ae JB |
1428 | () |
1429 | { | |
2cb6da5c RS |
1430 | register int i; |
1431 | Lisp_Object window, tem; | |
1432 | ||
1433 | /* If the previous command was not this, then mark the completion | |
1434 | buffer obsolete. */ | |
5221fd63 | 1435 | if (! EQ (current_kboard->Vlast_command, this_command)) |
2cb6da5c RS |
1436 | Vminibuf_scroll_window = Qnil; |
1437 | ||
1438 | window = Vminibuf_scroll_window; | |
1439 | /* If there's a fresh completion window with a live buffer, | |
1440 | and this command is repeated, scroll that window. */ | |
1441 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1442 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1443 | { | |
1444 | struct buffer *obuf = current_buffer; | |
1445 | ||
1446 | Fset_buffer (XWINDOW (window)->buffer); | |
1447 | tem = Fpos_visible_in_window_p (make_number (ZV), window); | |
1448 | if (! NILP (tem)) | |
1449 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1450 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1451 | else |
1452 | /* Else scroll down one screen. */ | |
1453 | Fscroll_other_window (Qnil); | |
1454 | ||
1455 | set_buffer_internal (obuf); | |
1456 | return Qnil; | |
1457 | } | |
1458 | ||
1459 | i = do_completion (); | |
f927c5ae JB |
1460 | switch (i) |
1461 | { | |
1462 | case 0: | |
1463 | return Qnil; | |
1464 | ||
1465 | case 1: | |
1466 | temp_echo_area_glyphs (" [Sole completion]"); | |
1467 | break; | |
1468 | ||
1469 | case 3: | |
1470 | temp_echo_area_glyphs (" [Complete, but not unique]"); | |
1471 | break; | |
1472 | } | |
1473 | ||
1474 | return Qt; | |
1475 | } | |
e4c97a67 RS |
1476 | \f |
1477 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1478 | ||
1479 | /* This one is called by internal_condition_case to do the real work. */ | |
1480 | ||
1481 | Lisp_Object | |
1482 | complete_and_exit_1 () | |
1483 | { | |
1484 | return make_number (do_completion ()); | |
1485 | } | |
1486 | ||
1487 | /* This one is called by internal_condition_case if an error happens. | |
1488 | Pretend the current value is an exact match. */ | |
1489 | ||
1490 | Lisp_Object | |
1491 | complete_and_exit_2 (ignore) | |
1492 | Lisp_Object ignore; | |
1493 | { | |
1494 | return make_number (1); | |
1495 | } | |
f927c5ae JB |
1496 | |
1497 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
1498 | Sminibuffer_complete_and_exit, 0, 0, "", | |
5d2ca7ae RS |
1499 | "If the minibuffer contents is a valid completion then exit.\n\ |
1500 | Otherwise try to complete it. If completion leads to a valid completion,\n\ | |
f927c5ae JB |
1501 | a repetition of this command will exit.") |
1502 | () | |
1503 | { | |
1504 | register int i; | |
e4c97a67 | 1505 | Lisp_Object val; |
f927c5ae JB |
1506 | |
1507 | /* Allow user to specify null string */ | |
1508 | if (BEGV == ZV) | |
1509 | goto exit; | |
1510 | ||
5d2ca7ae RS |
1511 | if (!NILP (test_completion (Fbuffer_string ()))) |
1512 | goto exit; | |
1513 | ||
e4c97a67 RS |
1514 | /* Call do_completion, but ignore errors. */ |
1515 | val = internal_condition_case (complete_and_exit_1, Qerror, | |
1516 | complete_and_exit_2); | |
1517 | ||
1518 | i = XFASTINT (val); | |
f927c5ae JB |
1519 | switch (i) |
1520 | { | |
1521 | case 1: | |
1522 | case 3: | |
1523 | goto exit; | |
1524 | ||
1525 | case 4: | |
56a98455 | 1526 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1527 | { |
1528 | temp_echo_area_glyphs (" [Confirm]"); | |
1529 | return Qnil; | |
1530 | } | |
1531 | else | |
1532 | goto exit; | |
1533 | ||
1534 | default: | |
1535 | return Qnil; | |
1536 | } | |
1537 | exit: | |
1538 | Fthrow (Qexit, Qnil); | |
1539 | /* NOTREACHED */ | |
1540 | } | |
1541 | ||
1542 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
1543 | 0, 0, "", | |
1544 | "Complete the minibuffer contents at most a single word.\n\ | |
1545 | After one word is completed as much as possible, a space or hyphen\n\ | |
6300d782 KH |
1546 | is added, provided that matches some possible completion.\n\ |
1547 | Return nil if there is no valid completion, else t.") | |
f927c5ae JB |
1548 | () |
1549 | { | |
1550 | Lisp_Object completion, tem; | |
1551 | register int i; | |
1552 | register unsigned char *completion_string; | |
d7be4211 | 1553 | struct gcpro gcpro1, gcpro2; |
b278606c BF |
1554 | |
1555 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1556 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae JB |
1557 | |
1558 | completion = Ftry_completion (Fbuffer_string (), | |
1559 | Vminibuffer_completion_table, | |
1560 | Vminibuffer_completion_predicate); | |
56a98455 | 1561 | if (NILP (completion)) |
f927c5ae JB |
1562 | { |
1563 | bitch_at_user (); | |
1564 | temp_echo_area_glyphs (" [No match]"); | |
1565 | return Qnil; | |
1566 | } | |
1567 | if (EQ (completion, Qt)) | |
1568 | return Qnil; | |
1569 | ||
b278606c | 1570 | #if 0 /* How the below code used to look, for reference. */ |
f927c5ae JB |
1571 | tem = Fbuffer_string (); |
1572 | b = XSTRING (tem)->data; | |
1573 | i = ZV - 1 - XSTRING (completion)->size; | |
1574 | p = XSTRING (completion)->data; | |
1575 | if (i > 0 || | |
1576 | 0 <= scmp (b, p, ZV - 1)) | |
1577 | { | |
1578 | i = 1; | |
1579 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1580 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1581 | i++; | |
1582 | del_range (1, i + 1); | |
1583 | SET_PT (ZV); | |
1584 | } | |
1585 | #else /* Rewritten code */ | |
1586 | { | |
1587 | register unsigned char *buffer_string; | |
1588 | int buffer_length, completion_length; | |
1589 | ||
59860a8c | 1590 | CHECK_STRING (completion, 0); |
f927c5ae | 1591 | tem = Fbuffer_string (); |
d7be4211 | 1592 | GCPRO2 (completion, tem); |
719b4a40 RS |
1593 | /* If reading a file name, |
1594 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
1595 | if (EQ (Vminibuffer_completion_table, Qread_file_name_internal)) | |
1596 | { | |
1597 | Lisp_Object substituted; | |
1598 | substituted = Fsubstitute_in_file_name (tem); | |
1599 | if (! EQ (substituted, tem)) | |
1600 | { | |
1601 | tem = substituted; | |
1602 | Ferase_buffer (); | |
3cab9ae4 | 1603 | insert_from_string (tem, 0, XSTRING (tem)->size, 0); |
719b4a40 RS |
1604 | } |
1605 | } | |
f927c5ae JB |
1606 | buffer_string = XSTRING (tem)->data; |
1607 | completion_string = XSTRING (completion)->data; | |
1608 | buffer_length = XSTRING (tem)->size; /* ie ZV - BEGV */ | |
1609 | completion_length = XSTRING (completion)->size; | |
1610 | i = buffer_length - completion_length; | |
1611 | /* Mly: I don't understand what this is supposed to do AT ALL */ | |
1612 | if (i > 0 || | |
1613 | 0 <= scmp (buffer_string, completion_string, buffer_length)) | |
1614 | { | |
1615 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1616 | if (i <= 0) i = 1; | |
1617 | buffer_string += i; | |
1618 | buffer_length -= i; | |
1619 | while (0 <= scmp (buffer_string++, completion_string, buffer_length--)) | |
1620 | i++; | |
1621 | del_range (1, i + 1); | |
1622 | SET_PT (ZV); | |
1623 | } | |
d7be4211 | 1624 | UNGCPRO; |
f927c5ae JB |
1625 | } |
1626 | #endif /* Rewritten code */ | |
1627 | i = ZV - BEGV; | |
1628 | ||
1629 | /* If completion finds next char not unique, | |
b278606c | 1630 | consider adding a space or a hyphen. */ |
f927c5ae JB |
1631 | if (i == XSTRING (completion)->size) |
1632 | { | |
b278606c | 1633 | GCPRO1 (completion); |
f927c5ae JB |
1634 | tem = Ftry_completion (concat2 (Fbuffer_string (), build_string (" ")), |
1635 | Vminibuffer_completion_table, | |
1636 | Vminibuffer_completion_predicate); | |
b278606c BF |
1637 | UNGCPRO; |
1638 | ||
7510b296 | 1639 | if (STRINGP (tem)) |
f927c5ae JB |
1640 | completion = tem; |
1641 | else | |
1642 | { | |
b278606c BF |
1643 | GCPRO1 (completion); |
1644 | tem = | |
1645 | Ftry_completion (concat2 (Fbuffer_string (), build_string ("-")), | |
1646 | Vminibuffer_completion_table, | |
1647 | Vminibuffer_completion_predicate); | |
1648 | UNGCPRO; | |
1649 | ||
7510b296 | 1650 | if (STRINGP (tem)) |
f927c5ae JB |
1651 | completion = tem; |
1652 | } | |
1653 | } | |
1654 | ||
1655 | /* Now find first word-break in the stuff found by completion. | |
1656 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
1657 | { |
1658 | int len, c; | |
b278606c | 1659 | |
d50a3d2a KH |
1660 | completion_string = XSTRING (completion)->data; |
1661 | for (; i < XSTRING (completion)->size; i += len) | |
1662 | { | |
1663 | c = STRING_CHAR_AND_LENGTH (completion_string + i, | |
1664 | XSTRING (completion)->size - i, | |
1665 | len); | |
1666 | if (SYNTAX (c) != Sword) | |
1667 | { | |
1668 | i += len; | |
1669 | break; | |
1670 | } | |
1671 | } | |
1672 | } | |
f927c5ae JB |
1673 | |
1674 | /* If got no characters, print help for user. */ | |
1675 | ||
1676 | if (i == ZV - BEGV) | |
1677 | { | |
1678 | if (auto_help) | |
1679 | Fminibuffer_completion_help (); | |
1680 | return Qnil; | |
1681 | } | |
1682 | ||
1683 | /* Otherwise insert in minibuffer the chars we got */ | |
1684 | ||
1685 | Ferase_buffer (); | |
3cab9ae4 | 1686 | insert_from_string (completion, 0, i, 1); |
f927c5ae JB |
1687 | return Qt; |
1688 | } | |
1689 | \f | |
1690 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
1691 | 1, 1, 0, | |
2dc2b736 | 1692 | "Display the list of completions, COMPLETIONS, using `standard-output'.\n\ |
f927c5ae | 1693 | Each element may be just a symbol or string\n\ |
2d7e41fe RS |
1694 | or may be a list of two strings to be printed as if concatenated.\n\ |
1695 | `standard-output' must be a buffer.\n\ | |
1696 | At the end, run the normal hook `completion-setup-hook'.\n\ | |
1697 | It can find the completion buffer in `standard-output'.") | |
f927c5ae JB |
1698 | (completions) |
1699 | Lisp_Object completions; | |
1700 | { | |
dae36123 | 1701 | Lisp_Object tail, elt; |
f927c5ae | 1702 | register int i; |
2dc2b736 | 1703 | int column = 0; |
dae36123 | 1704 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 1705 | struct buffer *old = current_buffer; |
681f5af4 | 1706 | int first = 1; |
486cc7fb RS |
1707 | |
1708 | /* Note that (when it matters) every variable | |
dae36123 RS |
1709 | points to a non-string that is pointed to by COMPLETIONS, |
1710 | except for ELT. ELT can be pointing to a string | |
1711 | when terpri or Findent_to calls a change hook. */ | |
1712 | elt = Qnil; | |
1713 | GCPRO2 (completions, elt); | |
486cc7fb | 1714 | |
7510b296 | 1715 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 1716 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 1717 | |
56a98455 | 1718 | if (NILP (completions)) |
cfc736bf RS |
1719 | write_string ("There are no possible completions of what you have typed.", |
1720 | -1); | |
f927c5ae JB |
1721 | else |
1722 | { | |
2dc2b736 | 1723 | write_string ("Possible completions are:", -1); |
56a98455 | 1724 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 1725 | { |
681f5af4 RS |
1726 | Lisp_Object tem; |
1727 | int length; | |
47d7d104 | 1728 | Lisp_Object startpos, endpos; |
681f5af4 RS |
1729 | |
1730 | elt = Fcar (tail); | |
1731 | /* Compute the length of this element. */ | |
1732 | if (CONSP (elt)) | |
1733 | { | |
49db96ce | 1734 | tem = XCAR (elt); |
681f5af4 | 1735 | CHECK_STRING (tem, 0); |
49db96ce | 1736 | length = XSTRING (tem)->size; |
681f5af4 | 1737 | |
49db96ce | 1738 | tem = Fcar (XCDR (elt)); |
681f5af4 | 1739 | CHECK_STRING (tem, 0); |
49db96ce | 1740 | length += XSTRING (tem)->size; |
681f5af4 RS |
1741 | } |
1742 | else | |
1743 | { | |
1744 | CHECK_STRING (elt, 0); | |
49db96ce | 1745 | length = XSTRING (elt)->size; |
681f5af4 RS |
1746 | } |
1747 | ||
1748 | /* This does a bad job for narrower than usual windows. | |
1749 | Sadly, the window it will appear in is not known | |
1750 | until after the text has been made. */ | |
1751 | ||
47d7d104 RS |
1752 | if (BUFFERP (Vstandard_output)) |
1753 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
1754 | ||
681f5af4 RS |
1755 | /* If the previous completion was very wide, |
1756 | or we have two on this line already, | |
1757 | don't put another on the same line. */ | |
1758 | if (column > 33 || first | |
1759 | /* If this is really wide, don't put it second on a line. */ | |
1760 | || column > 0 && length > 45) | |
1761 | { | |
1762 | Fterpri (Qnil); | |
1763 | column = 0; | |
1764 | } | |
1765 | /* Otherwise advance to column 35. */ | |
1766 | else | |
2dc2b736 | 1767 | { |
7510b296 | 1768 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
1769 | { |
1770 | tem = Findent_to (make_number (35), make_number (2)); | |
47d7d104 | 1771 | |
681f5af4 RS |
1772 | column = XINT (tem); |
1773 | } | |
2dc2b736 RS |
1774 | else |
1775 | { | |
1776 | do | |
1777 | { | |
1778 | write_string (" ", -1); | |
1779 | column++; | |
1780 | } | |
1781 | while (column < 35); | |
1782 | } | |
1783 | } | |
681f5af4 | 1784 | |
47d7d104 RS |
1785 | if (BUFFERP (Vstandard_output)) |
1786 | { | |
1787 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
1788 | Fset_text_properties (startpos, endpos, | |
1789 | Qnil, Vstandard_output); | |
1790 | } | |
1791 | ||
681f5af4 | 1792 | /* Output this element and update COLUMN. */ |
f927c5ae JB |
1793 | if (CONSP (elt)) |
1794 | { | |
1795 | Fprinc (Fcar (elt), Qnil); | |
1796 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
1797 | } | |
1798 | else | |
681f5af4 RS |
1799 | Fprinc (elt, Qnil); |
1800 | ||
1801 | column += length; | |
1802 | ||
1803 | /* If output is to a buffer, recompute COLUMN in a way | |
1804 | that takes account of character widths. */ | |
1805 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 1806 | { |
681f5af4 RS |
1807 | tem = Fcurrent_column (); |
1808 | column = XINT (tem); | |
2dc2b736 | 1809 | } |
681f5af4 RS |
1810 | |
1811 | first = 0; | |
f927c5ae JB |
1812 | } |
1813 | } | |
2dc2b736 | 1814 | |
486cc7fb RS |
1815 | UNGCPRO; |
1816 | ||
7510b296 | 1817 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
1818 | set_buffer_internal (old); |
1819 | ||
cfc736bf RS |
1820 | if (!NILP (Vrun_hooks)) |
1821 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
1822 | ||
f927c5ae JB |
1823 | return Qnil; |
1824 | } | |
1825 | ||
1826 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
1827 | 0, 0, "", | |
1828 | "Display a list of possible completions of the current minibuffer contents.") | |
1829 | () | |
1830 | { | |
1831 | Lisp_Object completions; | |
1832 | ||
1833 | message ("Making completion list..."); | |
1834 | completions = Fall_completions (Fbuffer_string (), | |
1835 | Vminibuffer_completion_table, | |
89a255dc RS |
1836 | Vminibuffer_completion_predicate, |
1837 | Qt); | |
f927c5ae JB |
1838 | echo_area_glyphs = 0; |
1839 | ||
56a98455 | 1840 | if (NILP (completions)) |
f927c5ae JB |
1841 | { |
1842 | bitch_at_user (); | |
1843 | temp_echo_area_glyphs (" [No completions]"); | |
1844 | } | |
1845 | else | |
1846 | internal_with_output_to_temp_buffer ("*Completions*", | |
1847 | Fdisplay_completion_list, | |
1848 | Fsort (completions, Qstring_lessp)); | |
1849 | return Qnil; | |
1850 | } | |
1851 | \f | |
1852 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
1853 | "Terminate minibuffer input.") | |
1854 | () | |
1855 | { | |
7510b296 | 1856 | if (INTEGERP (last_command_char)) |
f927c5ae JB |
1857 | internal_self_insert (last_command_char, 0); |
1858 | else | |
1859 | bitch_at_user (); | |
1860 | ||
1861 | Fthrow (Qexit, Qnil); | |
1862 | } | |
1863 | ||
1864 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
1865 | "Terminate this minibuffer argument.") | |
1866 | () | |
1867 | { | |
1868 | Fthrow (Qexit, Qnil); | |
1869 | } | |
1870 | ||
1871 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
1872 | "Return current depth of activations of minibuffer, a nonnegative integer.") | |
1873 | () | |
1874 | { | |
1875 | return make_number (minibuf_level); | |
1876 | } | |
1877 | ||
37e9a934 KH |
1878 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
1879 | "Return the prompt string of the currently-active minibuffer.\n\ | |
1880 | If no minibuffer is active, return nil.") | |
1881 | () | |
1882 | { | |
4d04c1f1 | 1883 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
1884 | } |
1885 | ||
1886 | DEFUN ("minibuffer-prompt-width", Fminibuffer_prompt_width, | |
1887 | Sminibuffer_prompt_width, 0, 0, 0, | |
c5896ef4 | 1888 | "Return the display width of the minibuffer prompt.") |
37e9a934 KH |
1889 | () |
1890 | { | |
1891 | Lisp_Object width; | |
5a866662 | 1892 | XSETFASTINT (width, minibuf_prompt_width); |
37e9a934 KH |
1893 | return width; |
1894 | } | |
f927c5ae | 1895 | \f |
2d955a50 RS |
1896 | /* Temporarily display the string M at the end of the current |
1897 | minibuffer contents. This is used to display things like | |
1898 | "[No Match]" when the user requests a completion for a prefix | |
1899 | that has no possible completions, and other quick, unobtrusive | |
1900 | messages. */ | |
1901 | ||
9d815fd9 | 1902 | void |
2d955a50 RS |
1903 | temp_echo_area_glyphs (m) |
1904 | char *m; | |
1905 | { | |
1906 | int osize = ZV; | |
1907 | int opoint = PT; | |
1908 | Lisp_Object oinhibit; | |
1909 | oinhibit = Vinhibit_quit; | |
1910 | ||
1911 | /* Clear out any old echo-area message to make way for our new thing. */ | |
1912 | message (0); | |
1913 | ||
1914 | SET_PT (osize); | |
1915 | insert_string (m); | |
1916 | SET_PT (opoint); | |
1917 | Vinhibit_quit = Qt; | |
1918 | Fsit_for (make_number (2), Qnil, Qnil); | |
1919 | del_range (osize, ZV); | |
1920 | SET_PT (opoint); | |
1921 | if (!NILP (Vquit_flag)) | |
1922 | { | |
1923 | Vquit_flag = Qnil; | |
1924 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
1925 | } | |
1926 | Vinhibit_quit = oinhibit; | |
1927 | } | |
1928 | ||
1929 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
1930 | 1, 1, 0, | |
1931 | "Temporarily display STRING at the end of the minibuffer.\n\ | |
1932 | The text is displayed for two seconds,\n\ | |
1933 | or until the next input event arrives, whichever comes first.") | |
1934 | (string) | |
1935 | Lisp_Object string; | |
1936 | { | |
1937 | temp_echo_area_glyphs (XSTRING (string)->data); | |
1938 | return Qnil; | |
1939 | } | |
1940 | \f | |
9d815fd9 | 1941 | void |
f927c5ae JB |
1942 | init_minibuf_once () |
1943 | { | |
1944 | Vminibuffer_list = Qnil; | |
1945 | staticpro (&Vminibuffer_list); | |
1946 | } | |
1947 | ||
9d815fd9 | 1948 | void |
f927c5ae JB |
1949 | syms_of_minibuf () |
1950 | { | |
1951 | minibuf_level = 0; | |
4d04c1f1 KH |
1952 | minibuf_prompt = Qnil; |
1953 | staticpro (&minibuf_prompt); | |
1954 | ||
1955 | minibuf_save_list = Qnil; | |
1956 | staticpro (&minibuf_save_list); | |
f927c5ae | 1957 | |
719b4a40 RS |
1958 | Qread_file_name_internal = intern ("read-file-name-internal"); |
1959 | staticpro (&Qread_file_name_internal); | |
1960 | ||
e5d4686b RS |
1961 | Qminibuffer_default = intern ("minibuffer-default"); |
1962 | staticpro (&Qminibuffer_default); | |
1963 | Fset (Qminibuffer_default, Qnil); | |
1964 | ||
f927c5ae JB |
1965 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
1966 | staticpro (&Qminibuffer_completion_table); | |
1967 | ||
1968 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
1969 | staticpro (&Qminibuffer_completion_confirm); | |
1970 | ||
1971 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
1972 | staticpro (&Qminibuffer_completion_predicate); | |
1973 | ||
1e00c2ff KH |
1974 | staticpro (&last_exact_completion); |
1975 | last_exact_completion = Qnil; | |
1976 | ||
f927c5ae JB |
1977 | staticpro (&last_minibuf_string); |
1978 | last_minibuf_string = Qnil; | |
1979 | ||
1980 | Quser_variable_p = intern ("user-variable-p"); | |
1981 | staticpro (&Quser_variable_p); | |
1982 | ||
770970cb RS |
1983 | Qminibuffer_history = intern ("minibuffer-history"); |
1984 | staticpro (&Qminibuffer_history); | |
f927c5ae | 1985 | |
5c781212 RS |
1986 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
1987 | staticpro (&Qminibuffer_setup_hook); | |
1988 | ||
177aecf9 KH |
1989 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
1990 | staticpro (&Qminibuffer_exit_hook); | |
1991 | ||
77aa8edf RS |
1992 | Qhistory_length = intern ("history-length"); |
1993 | staticpro (&Qhistory_length); | |
1994 | ||
cee54539 KH |
1995 | Qcurrent_input_method = intern ("current-input-method"); |
1996 | staticpro (&Qcurrent_input_method); | |
1997 | ||
1998 | Qactivate_input_method = intern ("activate-input-method"); | |
1999 | staticpro (&Qactivate_input_method); | |
2000 | ||
eebbfb01 KH |
2001 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2002 | "If this is non-nil, `read-buffer' does its work by calling this function."); | |
2003 | Vread_buffer_function = Qnil; | |
2004 | ||
5c781212 RS |
2005 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2006 | "Normal hook run just after entry to minibuffer."); | |
2007 | Vminibuffer_setup_hook = Qnil; | |
2008 | ||
177aecf9 KH |
2009 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2010 | "Normal hook run just after exit from minibuffer."); | |
2011 | Vminibuffer_exit_hook = Qnil; | |
2012 | ||
77aa8edf RS |
2013 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2014 | "*Maximum length for history lists before truncation takes place.\n\ | |
2015 | A number means that length; t means infinite. Truncation takes place\n\ | |
2016 | just after a new element is inserted. Setting the history-length\n\ | |
2017 | property of a history variable overrides this default."); | |
2018 | XSETFASTINT (Vhistory_length, 30); | |
2019 | ||
f927c5ae JB |
2020 | DEFVAR_BOOL ("completion-auto-help", &auto_help, |
2021 | "*Non-nil means automatically provide help for invalid completion input."); | |
2022 | auto_help = 1; | |
2023 | ||
2024 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, | |
2025 | "Non-nil means don't consider case significant in completion."); | |
2026 | completion_ignore_case = 0; | |
2027 | ||
2028 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, | |
2029 | "*Non-nil means to allow minibuffer commands while in the minibuffer.\n\ | |
7e3e3ad1 | 2030 | This variable makes a difference whenever the minibuffer window is active."); |
f927c5ae JB |
2031 | enable_recursive_minibuffers = 0; |
2032 | ||
2033 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, | |
2034 | "Alist or obarray used for completion in the minibuffer.\n\ | |
2035 | This becomes the ALIST argument to `try-completion' and `all-completion'.\n\ | |
2036 | \n\ | |
2037 | The value may alternatively be a function, which is given three arguments:\n\ | |
2038 | STRING, the current buffer contents;\n\ | |
2039 | PREDICATE, the predicate for filtering possible matches;\n\ | |
2040 | CODE, which says what kind of things to do.\n\ | |
2041 | CODE can be nil, t or `lambda'.\n\ | |
2042 | nil means to return the best completion of STRING, or nil if there is none.\n\ | |
2043 | t means to return a list of all possible completions of STRING.\n\ | |
2044 | `lambda' means to return t if STRING is a valid completion as it stands."); | |
2045 | Vminibuffer_completion_table = Qnil; | |
2046 | ||
2047 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, | |
2048 | "Within call to `completing-read', this holds the PREDICATE argument."); | |
2049 | Vminibuffer_completion_predicate = Qnil; | |
2050 | ||
2051 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, | |
2052 | "Non-nil => demand confirmation of completion before exiting minibuffer."); | |
2053 | Vminibuffer_completion_confirm = Qnil; | |
2054 | ||
2055 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, | |
2056 | "Value that `help-form' takes on inside the minibuffer."); | |
2057 | Vminibuffer_help_form = Qnil; | |
2058 | ||
770970cb RS |
2059 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2060 | "History list symbol to add minibuffer values to.\n\ | |
2fa2413b RS |
2061 | Each string of minibuffer input, as it appears on exit from the minibuffer,\n\ |
2062 | is added with\n\ | |
770970cb RS |
2063 | (set minibuffer-history-variable\n\ |
2064 | (cons STRING (symbol-value minibuffer-history-variable)))"); | |
5a866662 | 2065 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb RS |
2066 | |
2067 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, | |
2068 | "Current position of redoing in the history list."); | |
2069 | Vminibuffer_history_position = Qnil; | |
2070 | ||
6a9ee000 | 2071 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
e98bcc1a RS |
2072 | "*Non-nil means entering the minibuffer raises the minibuffer's frame.\n\ |
2073 | Some uses of the echo area also raise that frame (since they use it too)."); | |
6a9ee000 RS |
2074 | minibuffer_auto_raise = 0; |
2075 | ||
42006772 RS |
2076 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2077 | "List of regexps that should restrict possible completions."); | |
2078 | Vcompletion_regexp_list = Qnil; | |
2079 | ||
c3421833 RS |
2080 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
2081 | &minibuffer_allow_text_properties, | |
2082 | "Non-nil means `read-from-miniffer' should not discard text properties.\n\ | |
2083 | This also affects `read-string', but it does not affect `read-minibuffer',\n\ | |
2084 | `read-no-blanks-input', or any of the functions that do minibuffer input\n\ | |
2bfbde2b | 2085 | with completion; they always discard text properties."); |
c3421833 RS |
2086 | minibuffer_allow_text_properties = 0; |
2087 | ||
68313ed8 | 2088 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2089 | defsubr (&Sread_from_minibuffer); |
2090 | defsubr (&Seval_minibuffer); | |
2091 | defsubr (&Sread_minibuffer); | |
2092 | defsubr (&Sread_string); | |
2093 | defsubr (&Sread_command); | |
2094 | defsubr (&Sread_variable); | |
2095 | defsubr (&Sread_buffer); | |
2096 | defsubr (&Sread_no_blanks_input); | |
2097 | defsubr (&Sminibuffer_depth); | |
37e9a934 KH |
2098 | defsubr (&Sminibuffer_prompt); |
2099 | defsubr (&Sminibuffer_prompt_width); | |
f927c5ae JB |
2100 | |
2101 | defsubr (&Stry_completion); | |
2102 | defsubr (&Sall_completions); | |
2103 | defsubr (&Scompleting_read); | |
2104 | defsubr (&Sminibuffer_complete); | |
2105 | defsubr (&Sminibuffer_complete_word); | |
2106 | defsubr (&Sminibuffer_complete_and_exit); | |
2107 | defsubr (&Sdisplay_completion_list); | |
2108 | defsubr (&Sminibuffer_completion_help); | |
2109 | ||
2110 | defsubr (&Sself_insert_and_exit); | |
2111 | defsubr (&Sexit_minibuffer); | |
2112 | ||
2d955a50 | 2113 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2114 | } |
2115 | ||
9d815fd9 | 2116 | void |
f927c5ae JB |
2117 | keys_of_minibuf () |
2118 | { | |
2119 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2120 | "abort-recursive-edit"); | |
2121 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2122 | "exit-minibuffer"); | |
2123 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2124 | "exit-minibuffer"); | |
2125 | ||
2126 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('g'), | |
2127 | "abort-recursive-edit"); | |
2128 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('m'), | |
2129 | "exit-minibuffer"); | |
2130 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('j'), | |
2131 | "exit-minibuffer"); | |
2132 | ||
2133 | initial_define_key (Vminibuffer_local_ns_map, ' ', | |
2134 | "exit-minibuffer"); | |
2135 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2136 | "exit-minibuffer"); | |
2137 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2138 | "self-insert-and-exit"); | |
2139 | ||
2140 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('g'), | |
2141 | "abort-recursive-edit"); | |
2142 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('m'), | |
2143 | "exit-minibuffer"); | |
2144 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('j'), | |
2145 | "exit-minibuffer"); | |
2146 | ||
2147 | initial_define_key (Vminibuffer_local_completion_map, '\t', | |
2148 | "minibuffer-complete"); | |
2149 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2150 | "minibuffer-complete-word"); | |
2151 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2152 | "minibuffer-completion-help"); | |
2153 | ||
2154 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('g'), | |
2155 | "abort-recursive-edit"); | |
2156 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), | |
2157 | "minibuffer-complete-and-exit"); | |
2158 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2159 | "minibuffer-complete-and-exit"); | |
2160 | initial_define_key (Vminibuffer_local_must_match_map, '\t', | |
2161 | "minibuffer-complete"); | |
2162 | initial_define_key (Vminibuffer_local_must_match_map, ' ', | |
2163 | "minibuffer-complete-word"); | |
2164 | initial_define_key (Vminibuffer_local_must_match_map, '?', | |
2165 | "minibuffer-completion-help"); | |
2166 | } |