Commit | Line | Data |
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f927c5ae | 1 | /* Minibuffer input and completion. |
4a2f9c6a | 2 | Copyright (C) 1985, 1986, 1993, 1994, 1995, 1996, 1997, 1998 |
6801b300 | 3 | Free Software Foundation, Inc. |
f927c5ae JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ffd56f97 | 9 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
f927c5ae JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
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 | ||
406e55df | 80 | Lisp_Object Qminibuffer_history, Qbuffer_name_history; |
770970cb | 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 | ||
af2b7cd5 RS |
186 | static Lisp_Object read_minibuf_unwind P_ ((Lisp_Object)); |
187 | static Lisp_Object read_minibuf P_ ((Lisp_Object, Lisp_Object, | |
188 | Lisp_Object, Lisp_Object, | |
189 | int, Lisp_Object, | |
190 | Lisp_Object, Lisp_Object, | |
191 | int, int)); | |
f927c5ae | 192 | |
770970cb | 193 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
a9c26562 | 194 | (a string), putting point minus BACKUP_N bytes from the end of INITIAL, |
770970cb | 195 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 196 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
197 | |
198 | Normally return the result as a string (the text that was read), | |
3ab14176 | 199 | but if EXPFLAG is nonzero, read it and return the object read. |
b278606c BF |
200 | If HISTVAR is given, save the value read on that history only if it doesn't |
201 | match the front of that history list exactly. The value is pushed onto | |
e5d4686b | 202 | the list as the string that was read. |
770970cb | 203 | |
c3421833 RS |
204 | DEFALT specifies te default value for the sake of history commands. |
205 | ||
cee54539 KH |
206 | If ALLOW_PROPS is nonzero, we do not throw away text properties. |
207 | ||
208 | if INHERIT_INPUT_METHOD is nonzeor, the minibuffer inherit the | |
209 | current input method. */ | |
e5d4686b RS |
210 | |
211 | static Lisp_Object | |
212 | read_minibuf (map, initial, prompt, backup_n, expflag, | |
cee54539 | 213 | histvar, histpos, defalt, allow_props, inherit_input_method) |
f927c5ae JB |
214 | Lisp_Object map; |
215 | Lisp_Object initial; | |
216 | Lisp_Object prompt; | |
5061d9c3 | 217 | Lisp_Object backup_n; |
f927c5ae | 218 | int expflag; |
770970cb RS |
219 | Lisp_Object histvar; |
220 | Lisp_Object histpos; | |
e5d4686b | 221 | Lisp_Object defalt; |
af2b7cd5 | 222 | int allow_props; |
cee54539 | 223 | int inherit_input_method; |
f927c5ae | 224 | { |
00a34088 | 225 | Lisp_Object val; |
f927c5ae | 226 | int count = specpdl_ptr - specpdl; |
cee54539 KH |
227 | Lisp_Object mini_frame, ambient_dir, minibuffer, input_method; |
228 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
c75000c7 | 229 | Lisp_Object enable_multibyte; |
00a34088 | 230 | |
e5d4686b RS |
231 | specbind (Qminibuffer_default, defalt); |
232 | ||
08f7d623 | 233 | single_kboard_state (); |
718d3251 | 234 | |
00a34088 | 235 | val = Qnil; |
57ceaa8a | 236 | ambient_dir = current_buffer->directory; |
cee54539 | 237 | input_method = Qnil; |
c75000c7 | 238 | enable_multibyte = Qnil; |
57ceaa8a | 239 | |
00a34088 RS |
240 | /* Don't need to protect PROMPT, HISTVAR, and HISTPOS because we |
241 | store them away before we can GC. Don't need to protect | |
242 | BACKUP_N because we use the value only if it is an integer. */ | |
cee54539 | 243 | GCPRO5 (map, initial, val, ambient_dir, input_method); |
f927c5ae | 244 | |
7510b296 | 245 | if (!STRINGP (prompt)) |
f927c5ae JB |
246 | prompt = build_string (""); |
247 | ||
f927c5ae | 248 | if (!enable_recursive_minibuffers |
be15a518 RS |
249 | && minibuf_level > 0) |
250 | { | |
251 | if (EQ (selected_window, minibuf_window)) | |
252 | error ("Command attempted to use minibuffer while in minibuffer"); | |
253 | else | |
254 | /* If we're in another window, cancel the minibuffer that's active. */ | |
255 | Fthrow (Qexit, | |
256 | build_string ("Command attempted to use minibuffer while in minibuffer")); | |
257 | } | |
f927c5ae | 258 | |
748dc60a | 259 | /* Choose the minibuffer window and frame, and take action on them. */ |
f927c5ae | 260 | |
c5b6b680 RS |
261 | choose_minibuf_frame (); |
262 | ||
0c94f256 RS |
263 | record_unwind_protect (choose_minibuf_frame_1, Qnil); |
264 | ||
f927c5ae | 265 | record_unwind_protect (Fset_window_configuration, |
b2b2c677 JB |
266 | Fcurrent_window_configuration (Qnil)); |
267 | ||
ff11dfa1 JB |
268 | /* If the minibuffer window is on a different frame, save that |
269 | frame's configuration too. */ | |
75f00e72 | 270 | mini_frame = WINDOW_FRAME (XWINDOW (minibuf_window)); |
ff11dfa1 | 271 | if (XFRAME (mini_frame) != selected_frame) |
5061d9c3 RS |
272 | record_unwind_protect (Fset_window_configuration, |
273 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
274 | |
275 | /* If the minibuffer is on an iconified or invisible frame, | |
276 | make it visible now. */ | |
277 | Fmake_frame_visible (mini_frame); | |
278 | ||
6a9ee000 RS |
279 | if (minibuffer_auto_raise) |
280 | Fraise_frame (mini_frame); | |
f927c5ae | 281 | |
748dc60a RS |
282 | /* We have to do this after saving the window configuration |
283 | since that is what restores the current buffer. */ | |
284 | ||
285 | /* Arrange to restore a number of minibuffer-related variables. | |
286 | We could bind each variable separately, but that would use lots of | |
287 | specpdl slots. */ | |
288 | minibuf_save_list | |
289 | = Fcons (Voverriding_local_map, | |
290 | Fcons (minibuf_window, minibuf_save_list)); | |
291 | minibuf_save_list | |
292 | = Fcons (minibuf_prompt, | |
293 | Fcons (make_number (minibuf_prompt_width), | |
294 | Fcons (Vhelp_form, | |
295 | Fcons (Vcurrent_prefix_arg, | |
296 | Fcons (Vminibuffer_history_position, | |
297 | Fcons (Vminibuffer_history_variable, | |
298 | minibuf_save_list)))))); | |
299 | ||
300 | record_unwind_protect (read_minibuf_unwind, Qnil); | |
301 | minibuf_level++; | |
302 | ||
303 | /* Now that we can restore all those variables, start changing them. */ | |
304 | ||
305 | minibuf_prompt_width = 0; /* xdisp.c puts in the right value. */ | |
306 | minibuf_prompt = Fcopy_sequence (prompt); | |
307 | Vminibuffer_history_position = histpos; | |
308 | Vminibuffer_history_variable = histvar; | |
309 | Vhelp_form = Vminibuffer_help_form; | |
310 | ||
cee54539 | 311 | if (inherit_input_method) |
c75000c7 RS |
312 | { |
313 | /* `current-input-method' is buffer local. So, remeber it in | |
314 | INPUT_METHOD before changing the current buffer. */ | |
315 | input_method = Fsymbol_value (Qcurrent_input_method); | |
316 | enable_multibyte = current_buffer->enable_multibyte_characters; | |
317 | } | |
cee54539 | 318 | |
748dc60a RS |
319 | /* Switch to the minibuffer. */ |
320 | ||
4f69d8f6 RS |
321 | minibuffer = get_minibuffer (minibuf_level); |
322 | Fset_buffer (minibuffer); | |
64a3a3c0 JB |
323 | |
324 | /* The current buffer's default directory is usually the right thing | |
325 | for our minibuffer here. However, if you're typing a command at | |
326 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
327 | the current_buffer, so reset_buffer leaves buf's default | |
328 | directory unchanged. This is a bummer when you've just started | |
329 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
330 | you think of something better to do? Find another buffer with a | |
331 | better directory, and use that one instead. */ | |
748dc60a RS |
332 | if (STRINGP (ambient_dir)) |
333 | current_buffer->directory = ambient_dir; | |
64a3a3c0 JB |
334 | else |
335 | { | |
336 | Lisp_Object buf_list; | |
337 | ||
338 | for (buf_list = Vbuffer_alist; | |
339 | CONSP (buf_list); | |
340 | buf_list = XCONS (buf_list)->cdr) | |
341 | { | |
1e62748e | 342 | Lisp_Object other_buf; |
64a3a3c0 | 343 | |
1e62748e | 344 | other_buf = XCONS (XCONS (buf_list)->car)->cdr; |
7510b296 | 345 | if (STRINGP (XBUFFER (other_buf)->directory)) |
64a3a3c0 JB |
346 | { |
347 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
348 | break; | |
349 | } | |
350 | } | |
351 | } | |
352 | ||
0abbff13 KH |
353 | if (XFRAME (mini_frame) != selected_frame) |
354 | Fredirect_frame_focus (Fselected_frame (), mini_frame); | |
43bad991 | 355 | |
f927c5ae JB |
356 | Vminibuf_scroll_window = selected_window; |
357 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); | |
f927c5ae | 358 | Fselect_window (minibuf_window); |
5a866662 | 359 | XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0); |
f927c5ae | 360 | |
748dc60a RS |
361 | Fmake_local_variable (Qprint_escape_newlines); |
362 | print_escape_newlines = 1; | |
363 | ||
364 | /* Erase the buffer. */ | |
59115a22 RS |
365 | { |
366 | int count1 = specpdl_ptr - specpdl; | |
367 | specbind (Qinhibit_read_only, Qt); | |
368 | Ferase_buffer (); | |
369 | unbind_to (count1, Qnil); | |
370 | } | |
371 | ||
748dc60a | 372 | /* Put in the initial input. */ |
56a98455 | 373 | if (!NILP (initial)) |
f927c5ae JB |
374 | { |
375 | Finsert (1, &initial); | |
a9c26562 RS |
376 | if (INTEGERP (backup_n)) |
377 | Fforward_char (backup_n); | |
f927c5ae JB |
378 | } |
379 | ||
f927c5ae | 380 | echo_area_glyphs = 0; |
73168c8b RS |
381 | /* This is in case the minibuffer-setup-hook calls Fsit_for. */ |
382 | previous_echo_glyphs = 0; | |
f927c5ae | 383 | |
f927c5ae JB |
384 | current_buffer->keymap = map; |
385 | ||
cee54539 | 386 | /* Turn on an input method stored in INPUT_METHOD if any. */ |
6801b300 | 387 | if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method))) |
cee54539 KH |
388 | call1 (Qactivate_input_method, input_method); |
389 | ||
c75000c7 RS |
390 | /* If appropriate, copy enable-multibyte-characters into the minibuffer. */ |
391 | if (inherit_input_method) | |
1faf29d4 | 392 | current_buffer->enable_multibyte_characters = enable_multibyte; |
c75000c7 | 393 | |
9404446f RS |
394 | if (!NILP (current_buffer->enable_multibyte_characters) |
395 | && ! STRING_MULTIBYTE (minibuf_prompt)) | |
396 | minibuf_prompt = Fstring_make_multibyte (minibuf_prompt); | |
397 | ||
5c781212 RS |
398 | /* Run our hook, but not if it is empty. |
399 | (run-hooks would do nothing if it is empty, | |
748dc60a | 400 | but it's important to save time here in the usual case). */ |
92d3b06e RS |
401 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
402 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
403 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
404 | ||
f927c5ae JB |
405 | recursive_edit_1 (); |
406 | ||
407 | /* If cursor is on the minibuffer line, | |
408 | show the user we have exited by putting it in column 0. */ | |
ff11dfa1 | 409 | if ((FRAME_CURSOR_Y (selected_frame) |
f927c5ae JB |
410 | >= XFASTINT (XWINDOW (minibuf_window)->top)) |
411 | && !noninteractive) | |
412 | { | |
85462999 RS |
413 | FRAME_CURSOR_X (selected_frame) |
414 | = FRAME_LEFT_SCROLL_BAR_WIDTH (selected_frame); | |
ff11dfa1 | 415 | update_frame (selected_frame, 1, 1); |
f927c5ae JB |
416 | } |
417 | ||
c3421833 | 418 | /* Make minibuffer contents into a string. */ |
4f69d8f6 | 419 | Fset_buffer (minibuffer); |
c3421833 | 420 | val = make_buffer_string (1, Z, allow_props); |
770970cb | 421 | |
b278606c | 422 | /* VAL is the string of minibuffer text. */ |
7019cca7 | 423 | |
b278606c BF |
424 | last_minibuf_string = val; |
425 | ||
3ab14176 | 426 | /* Add the value to the appropriate history list unless it is empty. */ |
9f6131cf | 427 | if (XSTRING (val)->size != 0 |
3ab14176 KH |
428 | && SYMBOLP (Vminibuffer_history_variable) |
429 | && ! EQ (XSYMBOL (Vminibuffer_history_variable)->value, Qunbound)) | |
430 | { | |
431 | /* If the caller wanted to save the value read on a history list, | |
432 | then do so if the value is not already the front of the list. */ | |
433 | Lisp_Object histval; | |
434 | histval = Fsymbol_value (Vminibuffer_history_variable); | |
435 | ||
436 | /* The value of the history variable must be a cons or nil. Other | |
437 | values are unacceptable. We silently ignore these values. */ | |
438 | if (NILP (histval) | |
9f6131cf RS |
439 | || (CONSP (histval) |
440 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
77aa8edf RS |
441 | { |
442 | Lisp_Object length; | |
443 | ||
444 | histval = Fcons (last_minibuf_string, histval); | |
445 | Fset (Vminibuffer_history_variable, histval); | |
446 | ||
447 | /* Truncate if requested. */ | |
448 | length = Fget (Vminibuffer_history_variable, Qhistory_length); | |
449 | if (NILP (length)) length = Vhistory_length; | |
e5d4686b RS |
450 | if (INTEGERP (length)) |
451 | { | |
452 | if (XINT (length) <= 0) | |
453 | Fset (Vminibuffer_history_variable, Qnil); | |
454 | else | |
455 | { | |
456 | Lisp_Object temp; | |
457 | ||
458 | temp = Fnthcdr (Fsub1 (length), histval); | |
459 | if (CONSP (temp)) Fsetcdr (temp, Qnil); | |
460 | } | |
461 | } | |
77aa8edf | 462 | } |
9f6131cf RS |
463 | } |
464 | ||
465 | /* If Lisp form desired instead of string, parse it. */ | |
466 | if (expflag) | |
467 | { | |
468 | Lisp_Object expr_and_pos; | |
469 | unsigned char *p; | |
82d6226f | 470 | int pos; |
9f6131cf | 471 | |
c923ccc9 RS |
472 | if (STRINGP (val) && XSTRING (val)->size == 0 |
473 | && STRINGP (defalt)) | |
474 | val = defalt; | |
475 | ||
9f6131cf | 476 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); |
82d6226f RS |
477 | pos = XINT (Fcdr (expr_and_pos)); |
478 | if (pos != XSTRING (val)->size) | |
479 | { | |
480 | /* Ignore trailing whitespace; any other trailing junk is an error. */ | |
481 | int i; | |
482 | pos = string_char_to_byte (val, pos); | |
fc932ac6 | 483 | for (i = pos; i < STRING_BYTES (XSTRING (val)); i++) |
82d6226f RS |
484 | { |
485 | int c = XSTRING (val)->data[i]; | |
486 | if (c != ' ' && c != '\t' && c != '\n') | |
487 | error ("Trailing garbage following expression"); | |
488 | } | |
489 | } | |
9f6131cf | 490 | val = Fcar (expr_and_pos); |
3ab14176 KH |
491 | } |
492 | ||
00a34088 RS |
493 | /* The appropriate frame will get selected |
494 | in set-window-configuration. */ | |
495 | RETURN_UNGCPRO (unbind_to (count, val)); | |
f927c5ae JB |
496 | } |
497 | ||
498 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
499 | depth = 0 is the lowest allowed argument, and that is the value | |
500 | used for nonrecursive minibuffer invocations */ | |
501 | ||
502 | Lisp_Object | |
503 | get_minibuffer (depth) | |
504 | int depth; | |
505 | { | |
506 | Lisp_Object tail, num, buf; | |
9f6c23bc | 507 | char name[24]; |
f927c5ae JB |
508 | extern Lisp_Object nconc2 (); |
509 | ||
5a866662 | 510 | XSETFASTINT (num, depth); |
f927c5ae | 511 | tail = Fnthcdr (num, Vminibuffer_list); |
56a98455 | 512 | if (NILP (tail)) |
f927c5ae JB |
513 | { |
514 | tail = Fcons (Qnil, Qnil); | |
515 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
516 | } | |
517 | buf = Fcar (tail); | |
56a98455 | 518 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
519 | { |
520 | sprintf (name, " *Minibuf-%d*", depth); | |
521 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
522 | |
523 | /* Although the buffer's name starts with a space, undo should be | |
524 | enabled in it. */ | |
525 | Fbuffer_enable_undo (buf); | |
526 | ||
f927c5ae JB |
527 | XCONS (tail)->car = buf; |
528 | } | |
529 | else | |
5956f71d | 530 | { |
6b3faad8 RS |
531 | int count = specpdl_ptr - specpdl; |
532 | ||
5956f71d | 533 | reset_buffer (XBUFFER (buf)); |
6b3faad8 RS |
534 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
535 | Fset_buffer (buf); | |
536 | Fkill_all_local_variables (); | |
537 | unbind_to (count, Qnil); | |
5956f71d | 538 | } |
64a3a3c0 | 539 | |
f927c5ae JB |
540 | return buf; |
541 | } | |
542 | ||
543 | /* This function is called on exiting minibuffer, whether normally or not, | |
544 | and it restores the current window, buffer, etc. */ | |
545 | ||
9d815fd9 | 546 | static Lisp_Object |
43bad991 JB |
547 | read_minibuf_unwind (data) |
548 | Lisp_Object data; | |
f927c5ae | 549 | { |
c24e1160 | 550 | Lisp_Object old_deactivate_mark; |
59115a22 | 551 | Lisp_Object window; |
c24e1160 | 552 | |
0a1dd1c5 RS |
553 | /* We are exiting the minibuffer one way or the other, |
554 | so run the hook. */ | |
555 | if (!NILP (Vminibuffer_exit_hook) && !EQ (Vminibuffer_exit_hook, Qunbound) | |
556 | && !NILP (Vrun_hooks)) | |
060ffec1 | 557 | safe_run_hooks (Qminibuffer_exit_hook); |
0a1dd1c5 | 558 | |
f927c5ae | 559 | /* If this was a recursive minibuffer, |
59115a22 | 560 | tie the minibuffer window back to the outer level minibuffer buffer. */ |
f927c5ae | 561 | minibuf_level--; |
f927c5ae | 562 | |
59115a22 RS |
563 | window = minibuf_window; |
564 | /* To keep things predictable, in case it matters, let's be in the minibuffer | |
565 | when we reset the relevant variables. */ | |
566 | Fset_buffer (XWINDOW (window)->buffer); | |
567 | ||
568 | /* Restore prompt, etc, from outer minibuffer level. */ | |
4d04c1f1 KH |
569 | minibuf_prompt = Fcar (minibuf_save_list); |
570 | minibuf_save_list = Fcdr (minibuf_save_list); | |
571 | minibuf_prompt_width = XFASTINT (Fcar (minibuf_save_list)); | |
572 | minibuf_save_list = Fcdr (minibuf_save_list); | |
573 | Vhelp_form = Fcar (minibuf_save_list); | |
574 | minibuf_save_list = Fcdr (minibuf_save_list); | |
ee9e37ab | 575 | Vcurrent_prefix_arg = Fcar (minibuf_save_list); |
4d04c1f1 KH |
576 | minibuf_save_list = Fcdr (minibuf_save_list); |
577 | Vminibuffer_history_position = Fcar (minibuf_save_list); | |
578 | minibuf_save_list = Fcdr (minibuf_save_list); | |
579 | Vminibuffer_history_variable = Fcar (minibuf_save_list); | |
580 | minibuf_save_list = Fcdr (minibuf_save_list); | |
30e13e56 | 581 | Voverriding_local_map = Fcar (minibuf_save_list); |
c5b6b680 | 582 | minibuf_save_list = Fcdr (minibuf_save_list); |
914860c2 RS |
583 | #if 0 |
584 | temp = Fcar (minibuf_save_list); | |
585 | if (FRAME_LIVE_P (XFRAME (WINDOW_FRAME (XWINDOW (temp))))) | |
586 | minibuf_window = temp; | |
587 | #endif | |
30e13e56 | 588 | minibuf_save_list = Fcdr (minibuf_save_list); |
59115a22 RS |
589 | |
590 | /* Erase the minibuffer we were using at this level. */ | |
591 | { | |
592 | int count = specpdl_ptr - specpdl; | |
593 | /* Prevent error in erase-buffer. */ | |
594 | specbind (Qinhibit_read_only, Qt); | |
595 | old_deactivate_mark = Vdeactivate_mark; | |
596 | Ferase_buffer (); | |
597 | Vdeactivate_mark = old_deactivate_mark; | |
598 | unbind_to (count, Qnil); | |
599 | } | |
600 | ||
601 | /* Make sure minibuffer window is erased, not ignored. */ | |
602 | windows_or_buffers_changed++; | |
603 | XSETFASTINT (XWINDOW (window)->last_modified, 0); | |
193e4518 | 604 | XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0); |
9d815fd9 AS |
605 | |
606 | return Qnil; | |
f927c5ae JB |
607 | } |
608 | \f | |
b9d721de JB |
609 | |
610 | /* This comment supplies the doc string for read-from-minibuffer, | |
611 | for make-docfile to see. We cannot put this in the real DEFUN | |
612 | due to limits in the Unix cpp. | |
613 | ||
cee54539 | 614 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
f927c5ae JB |
615 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
616 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string\n\ | |
617 | to be inserted into the minibuffer before reading input.\n\ | |
770970cb | 618 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input\n\ |
18fef111 | 619 | is STRING, but point is placed at position POSITION in the minibuffer.\n\ |
f927c5ae JB |
620 | Third arg KEYMAP is a keymap to use whilst reading;\n\ |
621 | if omitted or nil, the default is `minibuffer-local-map'.\n\ | |
622 | If fourth arg READ is non-nil, then interpret the result as a lisp object\n\ | |
623 | and return that object:\n\ | |
624 | in other words, do `(car (read-from-string INPUT-STRING))'\n\ | |
770970cb RS |
625 | Fifth arg HIST, if non-nil, specifies a history list\n\ |
626 | and optionally the initial position in the list.\n\ | |
627 | It can be a symbol, which is the history list variable to use,\n\ | |
628 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
629 | In that case, HISTVAR is the history list variable to use,\n\ | |
630 | and HISTPOS is the initial position (the position in the list\n\ | |
631 | which INITIAL-CONTENTS corresponds to).\n\ | |
e5d4686b | 632 | Positions are counted starting from 1 at the beginning of the list.\n\ |
b9a86585 RS |
633 | Sixth arg DEFAULT-VALUE is the default value. If non-nil, it is available\n\ |
634 | for history commands; but `read-from-minibuffer' does NOT return DEFAULT-VALUE\n\ | |
635 | if the user enters empty input! It returns the empty string.\n\ | |
c8c15521 RS |
636 | Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
637 | the current input method and the setting of enable-multibyte-characters.\n\ | |
19a4cb25 | 638 | If the variable `minibuffer-allow-text-properties' is non-nil,\n\ |
c3421833 | 639 | then the string which is returned includes whatever text properties\n\ |
cee54539 KH |
640 | were present in the minibuffer. Otherwise the value has no text properties.") |
641 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) | |
642 | */ | |
b9d721de | 643 | |
cee54539 | 644 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 7, 0, |
b9d721de | 645 | 0 /* See immediately above */) |
cee54539 | 646 | (prompt, initial_contents, keymap, read, hist, default_value, inherit_input_method) |
e5d4686b | 647 | Lisp_Object prompt, initial_contents, keymap, read, hist, default_value; |
cee54539 | 648 | Lisp_Object inherit_input_method; |
f927c5ae JB |
649 | { |
650 | int pos = 0; | |
e5d4686b | 651 | Lisp_Object histvar, histpos, position, val; |
1d8d92f4 RS |
652 | struct gcpro gcpro1; |
653 | ||
770970cb | 654 | position = Qnil; |
f927c5ae JB |
655 | |
656 | CHECK_STRING (prompt, 0); | |
68e5a8a2 | 657 | if (!NILP (initial_contents)) |
f927c5ae | 658 | { |
7510b296 | 659 | if (CONSP (initial_contents)) |
770970cb | 660 | { |
68e5a8a2 RS |
661 | position = Fcdr (initial_contents); |
662 | initial_contents = Fcar (initial_contents); | |
770970cb | 663 | } |
68e5a8a2 | 664 | CHECK_STRING (initial_contents, 1); |
56a98455 | 665 | if (!NILP (position)) |
f927c5ae JB |
666 | { |
667 | CHECK_NUMBER (position, 0); | |
668 | /* Convert to distance from end of input. */ | |
18fef111 RS |
669 | if (XINT (position) < 1) |
670 | /* A number too small means the beginning of the string. */ | |
671 | pos = - XSTRING (initial_contents)->size; | |
672 | else | |
673 | pos = XINT (position) - 1 - XSTRING (initial_contents)->size; | |
f927c5ae JB |
674 | } |
675 | } | |
676 | ||
56a98455 | 677 | if (NILP (keymap)) |
f927c5ae JB |
678 | keymap = Vminibuffer_local_map; |
679 | else | |
b7df898e | 680 | keymap = get_keymap (keymap); |
770970cb | 681 | |
7510b296 | 682 | if (SYMBOLP (hist)) |
770970cb RS |
683 | { |
684 | histvar = hist; | |
685 | histpos = Qnil; | |
686 | } | |
687 | else | |
688 | { | |
689 | histvar = Fcar_safe (hist); | |
690 | histpos = Fcdr_safe (hist); | |
691 | } | |
692 | if (NILP (histvar)) | |
693 | histvar = Qminibuffer_history; | |
694 | if (NILP (histpos)) | |
5a866662 | 695 | XSETFASTINT (histpos, 0); |
770970cb | 696 | |
1d8d92f4 | 697 | GCPRO1 (default_value); |
e5d4686b RS |
698 | val = read_minibuf (keymap, initial_contents, prompt, |
699 | make_number (pos), !NILP (read), | |
c3421833 | 700 | histvar, histpos, default_value, |
cee54539 KH |
701 | minibuffer_allow_text_properties, |
702 | !NILP (inherit_input_method)); | |
1d8d92f4 | 703 | UNGCPRO; |
e5d4686b | 704 | return val; |
f927c5ae JB |
705 | } |
706 | ||
707 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
708 | "Return a Lisp object 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 | CHECK_STRING (prompt, 0); | |
56a98455 | 715 | if (!NILP (initial_contents)) |
a1b4b084 | 716 | CHECK_STRING (initial_contents, 1); |
770970cb | 717 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
e5d4686b | 718 | prompt, Qnil, 1, Qminibuffer_history, |
dd9d15d6 | 719 | make_number (0), Qnil, 0, 0); |
f927c5ae JB |
720 | } |
721 | ||
722 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
723 | "Return value of Lisp expression read using the minibuffer.\n\ | |
724 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
725 | is a string to insert in the minibuffer before reading.") | |
726 | (prompt, initial_contents) | |
727 | Lisp_Object prompt, initial_contents; | |
728 | { | |
729 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
730 | } | |
731 | ||
732 | /* Functions that use the minibuffer to read various things. */ | |
733 | ||
cee54539 | 734 | DEFUN ("read-string", Fread_string, Sread_string, 1, 5, 0, |
f927c5ae | 735 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ |
80896ab4 RS |
736 | If non-nil, second arg INITIAL-INPUT is a string to insert before reading.\n\ |
737 | The third arg HISTORY, if non-nil, specifies a history list\n\ | |
738 | and optionally the initial position in the list.\n\ | |
cee54539 | 739 | See `read-from-minibuffer' for details of HISTORY argument.\n\ |
19a4cb25 SE |
740 | Fourth arg DEFAULT-VALUE is the default value. If non-nil, it is used\n\ |
741 | for history commands, and as the value to return if the user enters\n\ | |
742 | the empty string.\n\ | |
743 | Fifth arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ | |
c8c15521 | 744 | the current input method and the setting of enable-multibyte-characters.") |
cee54539 | 745 | (prompt, initial_input, history, default_value, inherit_input_method) |
e5d4686b | 746 | Lisp_Object prompt, initial_input, history, default_value; |
cee54539 | 747 | Lisp_Object inherit_input_method; |
f927c5ae | 748 | { |
b9a86585 RS |
749 | Lisp_Object val; |
750 | val = Fread_from_minibuffer (prompt, initial_input, Qnil, | |
751 | Qnil, history, default_value, | |
752 | inherit_input_method); | |
753 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (default_value)) | |
754 | val = default_value; | |
755 | return val; | |
f927c5ae JB |
756 | } |
757 | ||
cee54539 | 758 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0, |
c923ccc9 RS |
759 | "Read a string from the terminal, not allowing blanks.\n\ |
760 | Prompt with PROMPT, and provide INITIAL as an initial value of the input string.\n\ | |
c8c15521 RS |
761 | Third arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits\n\ |
762 | the current input method and the setting of enable-multibyte-characters.") | |
c923ccc9 RS |
763 | (prompt, initial, inherit_input_method) |
764 | Lisp_Object prompt, initial, inherit_input_method; | |
f927c5ae JB |
765 | { |
766 | CHECK_STRING (prompt, 0); | |
c923ccc9 RS |
767 | if (! NILP (initial)) |
768 | CHECK_STRING (initial, 1); | |
f927c5ae | 769 | |
c923ccc9 | 770 | return read_minibuf (Vminibuffer_local_ns_map, initial, prompt, Qnil, |
cee54539 KH |
771 | 0, Qminibuffer_history, make_number (0), Qnil, 0, |
772 | !NILP (inherit_input_method)); | |
f927c5ae JB |
773 | } |
774 | ||
e5d4686b RS |
775 | DEFUN ("read-command", Fread_command, Sread_command, 1, 2, 0, |
776 | "Read the name of a command and return as a symbol.\n\ | |
777 | Prompts with PROMPT. By default, return DEFAULT-VALUE.") | |
778 | (prompt, default_value) | |
779 | Lisp_Object prompt, default_value; | |
f927c5ae | 780 | { |
7c8d9931 RS |
781 | Lisp_Object name, default_string; |
782 | ||
783 | if (NILP (default_value)) | |
784 | default_string = Qnil; | |
785 | else if (SYMBOLP (default_value)) | |
6dd05c14 | 786 | XSETSTRING (default_string, XSYMBOL (default_value)->name); |
7c8d9931 RS |
787 | else |
788 | default_string = default_value; | |
789 | ||
790 | name = Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, | |
791 | Qnil, Qnil, default_string, Qnil); | |
792 | if (NILP (name)) | |
793 | return name; | |
794 | return Fintern (name, Qnil); | |
f927c5ae JB |
795 | } |
796 | ||
797 | #ifdef NOTDEF | |
798 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
799 | "One arg PROMPT, a string. Read the name of a function and return as a symbol.\n\ | |
800 | Prompts with PROMPT.") | |
801 | (prompt) | |
802 | Lisp_Object prompt; | |
803 | { | |
cee54539 | 804 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil, Qnil, Qnil), |
f927c5ae JB |
805 | Qnil); |
806 | } | |
807 | #endif /* NOTDEF */ | |
808 | ||
e5d4686b RS |
809 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0, |
810 | "Read the name of a user variable and return it as a symbol.\n\ | |
811 | Prompts with PROMPT. By default, return DEFAULT-VALUE.\n\ | |
f927c5ae | 812 | A user variable is one whose documentation starts with a `*' character.") |
e5d4686b RS |
813 | (prompt, default_value) |
814 | Lisp_Object prompt, default_value; | |
f927c5ae | 815 | { |
7c8d9931 RS |
816 | Lisp_Object name, default_string; |
817 | ||
818 | if (NILP (default_value)) | |
819 | default_string = Qnil; | |
820 | else if (SYMBOLP (default_value)) | |
6dd05c14 | 821 | XSETSTRING (default_string, XSYMBOL (default_value)->name); |
7c8d9931 RS |
822 | else |
823 | default_string = default_value; | |
824 | ||
825 | name = Fcompleting_read (prompt, Vobarray, | |
826 | Quser_variable_p, Qt, | |
827 | Qnil, Qnil, default_string, Qnil); | |
828 | if (NILP (name)) | |
829 | return name; | |
830 | return Fintern (name, Qnil); | |
f927c5ae JB |
831 | } |
832 | ||
833 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
834 | "One arg PROMPT, a string. Read the name of a buffer and return as a string.\n\ | |
835 | Prompts with PROMPT.\n\ | |
e5d4686b | 836 | Optional second arg DEF is value to return if user enters an empty line.\n\ |
f927c5ae JB |
837 | If optional third arg REQUIRE-MATCH is non-nil, only existing buffer names are allowed.") |
838 | (prompt, def, require_match) | |
839 | Lisp_Object prompt, def, require_match; | |
840 | { | |
841 | Lisp_Object tem; | |
eebbfb01 KH |
842 | Lisp_Object args[4]; |
843 | ||
7510b296 | 844 | if (BUFFERP (def)) |
f927c5ae | 845 | def = XBUFFER (def)->name; |
eebbfb01 KH |
846 | |
847 | if (NILP (Vread_buffer_function)) | |
848 | { | |
849 | if (!NILP (def)) | |
850 | { | |
851 | args[0] = build_string ("%s(default %s) "); | |
852 | args[1] = prompt; | |
853 | args[2] = def; | |
854 | prompt = Fformat (3, args); | |
855 | } | |
856 | ||
857 | return Fcompleting_read (prompt, Vbuffer_alist, Qnil, | |
406e55df RS |
858 | require_match, Qnil, Qbuffer_name_history, |
859 | def, Qnil); | |
eebbfb01 KH |
860 | } |
861 | else | |
f927c5ae | 862 | { |
eebbfb01 | 863 | args[0] = Vread_buffer_function; |
f927c5ae JB |
864 | args[1] = prompt; |
865 | args[2] = def; | |
eebbfb01 KH |
866 | args[3] = require_match; |
867 | return Ffuncall(4, args); | |
f927c5ae | 868 | } |
f927c5ae JB |
869 | } |
870 | \f | |
ec067ec7 RS |
871 | static Lisp_Object |
872 | minibuf_conform_representation (string, basis) | |
873 | Lisp_Object string, basis; | |
874 | { | |
875 | if (STRING_MULTIBYTE (string) == STRING_MULTIBYTE (basis)) | |
876 | return string; | |
877 | ||
878 | if (STRING_MULTIBYTE (string)) | |
879 | return Fstring_make_unibyte (string); | |
880 | else | |
881 | return Fstring_make_multibyte (string); | |
882 | } | |
883 | ||
f927c5ae JB |
884 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, |
885 | "Return common substring of all completions of STRING in ALIST.\n\ | |
886 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
887 | All that match are compared together; the longest initial sequence\n\ | |
888 | common to all matches is returned as a string.\n\ | |
889 | If there is no match at all, nil is returned.\n\ | |
890 | For an exact match, t is returned.\n\ | |
891 | \n\ | |
892 | ALIST can be an obarray instead of an alist.\n\ | |
893 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
894 | \n\ | |
895 | ALIST can also be a function to do the completion itself.\n\ | |
896 | It receives three arguments: the values STRING, PREDICATE and nil.\n\ | |
897 | Whatever it returns becomes the value of `try-completion'.\n\ | |
898 | \n\ | |
899 | If optional third argument PREDICATE is non-nil,\n\ | |
900 | it is used to test each possible match.\n\ | |
901 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
902 | The argument given to PREDICATE is the alist element\n\ |
903 | or the symbol from the obarray.") | |
7efd36fc EN |
904 | (string, alist, predicate) |
905 | Lisp_Object string, alist, predicate; | |
f927c5ae JB |
906 | { |
907 | Lisp_Object bestmatch, tail, elt, eltstring; | |
af2b7cd5 | 908 | /* Size in bytes of BESTMATCH. */ |
f927c5ae | 909 | int bestmatchsize; |
af2b7cd5 | 910 | /* These are in bytes, too. */ |
f927c5ae | 911 | int compare, matchsize; |
56a98455 | 912 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
913 | int index, obsize; |
914 | int matchcount = 0; | |
915 | Lisp_Object bucket, zero, end, tem; | |
916 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
917 | ||
918 | CHECK_STRING (string, 0); | |
7510b296 | 919 | if (!list && !VECTORP (alist)) |
7efd36fc | 920 | return call3 (alist, string, predicate, Qnil); |
f927c5ae JB |
921 | |
922 | bestmatch = Qnil; | |
923 | ||
924 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
925 | tail = alist; | |
926 | if (! list) | |
927 | { | |
928 | index = 0; | |
929 | obsize = XVECTOR (alist)->size; | |
930 | bucket = XVECTOR (alist)->contents[index]; | |
931 | } | |
932 | ||
933 | while (1) | |
934 | { | |
935 | /* Get the next element of the alist or obarray. */ | |
936 | /* Exit the loop if the elements are all used up. */ | |
937 | /* elt gets the alist element or symbol. | |
938 | eltstring gets the name to check as a completion. */ | |
939 | ||
940 | if (list) | |
941 | { | |
56a98455 | 942 | if (NILP (tail)) |
f927c5ae JB |
943 | break; |
944 | elt = Fcar (tail); | |
945 | eltstring = Fcar (elt); | |
946 | tail = Fcdr (tail); | |
947 | } | |
948 | else | |
949 | { | |
950 | if (XFASTINT (bucket) != 0) | |
951 | { | |
952 | elt = bucket; | |
953 | eltstring = Fsymbol_name (elt); | |
954 | if (XSYMBOL (bucket)->next) | |
955 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
956 | else | |
5a866662 | 957 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
958 | } |
959 | else if (++index >= obsize) | |
960 | break; | |
961 | else | |
962 | { | |
963 | bucket = XVECTOR (alist)->contents[index]; | |
964 | continue; | |
965 | } | |
966 | } | |
967 | ||
968 | /* Is this element a possible completion? */ | |
969 | ||
7510b296 | 970 | if (STRINGP (eltstring) |
7d315986 | 971 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
69f4ef20 RS |
972 | && (tem = Fcompare_strings (eltstring, make_number (0), |
973 | make_number (XSTRING (string)->size), | |
974 | string, make_number (0), Qnil, | |
975 | completion_ignore_case ?Qt : Qnil), | |
976 | EQ (Qt, tem))) | |
f927c5ae JB |
977 | { |
978 | /* Yes. */ | |
42006772 RS |
979 | Lisp_Object regexps; |
980 | Lisp_Object zero; | |
5a866662 | 981 | XSETFASTINT (zero, 0); |
42006772 RS |
982 | |
983 | /* Ignore this element if it fails to match all the regexps. */ | |
984 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
985 | regexps = XCONS (regexps)->cdr) | |
986 | { | |
987 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
988 | if (NILP (tem)) | |
989 | break; | |
990 | } | |
991 | if (CONSP (regexps)) | |
992 | continue; | |
993 | ||
f927c5ae JB |
994 | /* Ignore this element if there is a predicate |
995 | and the predicate doesn't like it. */ | |
996 | ||
7efd36fc | 997 | if (!NILP (predicate)) |
f927c5ae | 998 | { |
7efd36fc | 999 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1000 | tem = Fcommandp (elt); |
1001 | else | |
1002 | { | |
1003 | GCPRO4 (tail, string, eltstring, bestmatch); | |
7efd36fc | 1004 | tem = call1 (predicate, elt); |
f927c5ae JB |
1005 | UNGCPRO; |
1006 | } | |
56a98455 | 1007 | if (NILP (tem)) continue; |
f927c5ae JB |
1008 | } |
1009 | ||
1010 | /* Update computation of how much all possible completions match */ | |
1011 | ||
1012 | matchcount++; | |
56a98455 | 1013 | if (NILP (bestmatch)) |
af2b7cd5 RS |
1014 | { |
1015 | bestmatch = eltstring; | |
69f4ef20 | 1016 | bestmatchsize = XSTRING (eltstring)->size; |
af2b7cd5 | 1017 | } |
f927c5ae JB |
1018 | else |
1019 | { | |
69f4ef20 RS |
1020 | compare = min (bestmatchsize, XSTRING (eltstring)->size); |
1021 | tem = Fcompare_strings (bestmatch, make_number (0), | |
1022 | make_number (compare), | |
1023 | eltstring, make_number (0), | |
1024 | make_number (compare), | |
1025 | completion_ignore_case ? Qt : Qnil); | |
1026 | if (EQ (tem, Qt)) | |
1027 | matchsize = compare; | |
1028 | else if (XINT (tem) < 0) | |
1029 | matchsize = - XINT (tem) - 1; | |
1030 | else | |
1031 | matchsize = XINT (tem) - 1; | |
1032 | ||
52b14ac0 JB |
1033 | if (matchsize < 0) |
1034 | matchsize = compare; | |
1035 | if (completion_ignore_case) | |
1036 | { | |
1037 | /* If this is an exact match except for case, | |
1038 | use it as the best match rather than one that is not an | |
1039 | exact match. This way, we get the case pattern | |
1040 | of the actual match. */ | |
69f4ef20 RS |
1041 | if ((matchsize == XSTRING (eltstring)->size |
1042 | && matchsize < XSTRING (bestmatch)->size) | |
52b14ac0 JB |
1043 | || |
1044 | /* If there is more than one exact match ignoring case, | |
1045 | and one of them is exact including case, | |
1046 | prefer that one. */ | |
1047 | /* If there is no exact match ignoring case, | |
1048 | prefer a match that does not change the case | |
1049 | of the input. */ | |
69f4ef20 | 1050 | ((matchsize == XSTRING (eltstring)->size) |
52b14ac0 | 1051 | == |
69f4ef20 RS |
1052 | (matchsize == XSTRING (bestmatch)->size) |
1053 | && (tem = Fcompare_strings (eltstring, make_number (0), | |
1054 | make_number (XSTRING (string)->size), | |
1055 | string, make_number (0), | |
1056 | Qnil, | |
1057 | Qnil), | |
1058 | EQ (Qt, tem)) | |
1059 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
1060 | make_number (XSTRING (string)->size), | |
1061 | string, make_number (0), | |
1062 | Qnil, | |
1063 | Qnil), | |
1064 | ! EQ (Qt, tem)))) | |
52b14ac0 JB |
1065 | bestmatch = eltstring; |
1066 | } | |
1067 | bestmatchsize = matchsize; | |
f927c5ae JB |
1068 | } |
1069 | } | |
1070 | } | |
1071 | ||
56a98455 | 1072 | if (NILP (bestmatch)) |
f927c5ae | 1073 | return Qnil; /* No completions found */ |
52b14ac0 JB |
1074 | /* If we are ignoring case, and there is no exact match, |
1075 | and no additional text was supplied, | |
1076 | don't change the case of what the user typed. */ | |
69f4ef20 RS |
1077 | if (completion_ignore_case && bestmatchsize == XSTRING (string)->size |
1078 | && XSTRING (bestmatch)->size > bestmatchsize) | |
ec067ec7 | 1079 | return minibuf_conform_representation (string, bestmatch); |
52b14ac0 JB |
1080 | |
1081 | /* Return t if the supplied string is an exact match (counting case); | |
1082 | it does not require any change to be made. */ | |
69f4ef20 RS |
1083 | if (matchcount == 1 && bestmatchsize == XSTRING (string)->size |
1084 | && (tem = Fcompare_strings (bestmatch, make_number (0), | |
1085 | make_number (bestmatchsize), | |
1086 | string, make_number (0), | |
1087 | make_number (bestmatchsize), | |
1088 | Qnil), | |
1089 | EQ (Qt, tem))) | |
f927c5ae JB |
1090 | return Qt; |
1091 | ||
5a866662 KH |
1092 | XSETFASTINT (zero, 0); /* Else extract the part in which */ |
1093 | XSETFASTINT (end, bestmatchsize); /* all completions agree */ | |
f927c5ae JB |
1094 | return Fsubstring (bestmatch, zero, end); |
1095 | } | |
1096 | ||
1097 | /* Compare exactly LEN chars of strings at S1 and S2, | |
1098 | ignoring case if appropriate. | |
1099 | Return -1 if strings match, | |
1100 | else number of chars that match at the beginning. */ | |
1101 | ||
829f7f7c | 1102 | int |
f927c5ae | 1103 | scmp (s1, s2, len) |
829f7f7c | 1104 | register unsigned char *s1, *s2; |
f927c5ae JB |
1105 | int len; |
1106 | { | |
1107 | register int l = len; | |
d50a3d2a | 1108 | register unsigned char *start = s1; |
f927c5ae JB |
1109 | |
1110 | if (completion_ignore_case) | |
1111 | { | |
2e34157c | 1112 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) |
f927c5ae JB |
1113 | l--; |
1114 | } | |
1115 | else | |
1116 | { | |
1117 | while (l && *s1++ == *s2++) | |
1118 | l--; | |
1119 | } | |
1120 | if (l == 0) | |
1121 | return -1; | |
829f7f7c | 1122 | else |
d50a3d2a KH |
1123 | { |
1124 | int match = len - l; | |
1125 | ||
1126 | /* Now *--S1 is the unmatching byte. If it is in the middle of | |
1127 | multi-byte form, we must say that the multi-byte character | |
1128 | there doesn't match. */ | |
1129 | while (match && *--s1 >= 0xA0) match--; | |
1130 | return match; | |
1131 | } | |
f927c5ae JB |
1132 | } |
1133 | \f | |
89a255dc | 1134 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0, |
f927c5ae JB |
1135 | "Search for partial matches to STRING in ALIST.\n\ |
1136 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
1137 | The value is a list of all the strings from ALIST that match.\n\ | |
89a255dc | 1138 | \n\ |
f927c5ae JB |
1139 | ALIST can be an obarray instead of an alist.\n\ |
1140 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
1141 | \n\ | |
1142 | ALIST can also be a function to do the completion itself.\n\ | |
1143 | It receives three arguments: the values STRING, PREDICATE and t.\n\ | |
1144 | Whatever it returns becomes the value of `all-completion'.\n\ | |
1145 | \n\ | |
1146 | If optional third argument PREDICATE is non-nil,\n\ | |
1147 | it is used to test each possible match.\n\ | |
1148 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
89a255dc RS |
1149 | The argument given to PREDICATE is the alist element\n\ |
1150 | or the symbol from the obarray.\n\ | |
1151 | \n\ | |
1152 | If the optional fourth argument HIDE-SPACES is non-nil,\n\ | |
1153 | strings in ALIST that start with a space\n\ | |
1154 | are ignored unless STRING itself starts with a space.") | |
7efd36fc EN |
1155 | (string, alist, predicate, hide_spaces) |
1156 | Lisp_Object string, alist, predicate, hide_spaces; | |
f927c5ae JB |
1157 | { |
1158 | Lisp_Object tail, elt, eltstring; | |
1159 | Lisp_Object allmatches; | |
56a98455 | 1160 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
1161 | int index, obsize; |
1162 | Lisp_Object bucket, tem; | |
1163 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1164 | ||
1165 | CHECK_STRING (string, 0); | |
7510b296 | 1166 | if (!list && !VECTORP (alist)) |
f927c5ae | 1167 | { |
7efd36fc | 1168 | return call3 (alist, string, predicate, Qt); |
f927c5ae JB |
1169 | } |
1170 | allmatches = Qnil; | |
1171 | ||
1172 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
1173 | tail = alist; | |
1174 | if (! list) | |
1175 | { | |
1176 | index = 0; | |
1177 | obsize = XVECTOR (alist)->size; | |
1178 | bucket = XVECTOR (alist)->contents[index]; | |
1179 | } | |
1180 | ||
1181 | while (1) | |
1182 | { | |
1183 | /* Get the next element of the alist or obarray. */ | |
1184 | /* Exit the loop if the elements are all used up. */ | |
1185 | /* elt gets the alist element or symbol. | |
1186 | eltstring gets the name to check as a completion. */ | |
1187 | ||
1188 | if (list) | |
1189 | { | |
56a98455 | 1190 | if (NILP (tail)) |
f927c5ae JB |
1191 | break; |
1192 | elt = Fcar (tail); | |
1193 | eltstring = Fcar (elt); | |
1194 | tail = Fcdr (tail); | |
1195 | } | |
1196 | else | |
1197 | { | |
1198 | if (XFASTINT (bucket) != 0) | |
1199 | { | |
1200 | elt = bucket; | |
1201 | eltstring = Fsymbol_name (elt); | |
1202 | if (XSYMBOL (bucket)->next) | |
1203 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
1204 | else | |
5a866662 | 1205 | XSETFASTINT (bucket, 0); |
f927c5ae JB |
1206 | } |
1207 | else if (++index >= obsize) | |
1208 | break; | |
1209 | else | |
1210 | { | |
1211 | bucket = XVECTOR (alist)->contents[index]; | |
1212 | continue; | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | /* Is this element a possible completion? */ | |
1217 | ||
7510b296 | 1218 | if (STRINGP (eltstring) |
7d315986 | 1219 | && XSTRING (string)->size <= XSTRING (eltstring)->size |
89a255dc | 1220 | /* If HIDE_SPACES, reject alternatives that start with space |
2cbaf886 | 1221 | unless the input starts with space. */ |
fc932ac6 | 1222 | && ((STRING_BYTES (XSTRING (string)) > 0 |
af2b7cd5 | 1223 | && XSTRING (string)->data[0] == ' ') |
89a255dc RS |
1224 | || XSTRING (eltstring)->data[0] != ' ' |
1225 | || NILP (hide_spaces)) | |
69f4ef20 RS |
1226 | && (tem = Fcompare_strings (eltstring, make_number (0), |
1227 | make_number (XSTRING (string)->size), | |
1228 | string, make_number (0), | |
1229 | make_number (XSTRING (string)->size), | |
1230 | completion_ignore_case ? Qt : Qnil), | |
1231 | EQ (Qt, tem))) | |
f927c5ae JB |
1232 | { |
1233 | /* Yes. */ | |
42006772 RS |
1234 | Lisp_Object regexps; |
1235 | Lisp_Object zero; | |
5a866662 | 1236 | XSETFASTINT (zero, 0); |
42006772 RS |
1237 | |
1238 | /* Ignore this element if it fails to match all the regexps. */ | |
1239 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
1240 | regexps = XCONS (regexps)->cdr) | |
1241 | { | |
1242 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
1243 | if (NILP (tem)) | |
1244 | break; | |
1245 | } | |
1246 | if (CONSP (regexps)) | |
1247 | continue; | |
1248 | ||
f927c5ae JB |
1249 | /* Ignore this element if there is a predicate |
1250 | and the predicate doesn't like it. */ | |
1251 | ||
7efd36fc | 1252 | if (!NILP (predicate)) |
f927c5ae | 1253 | { |
7efd36fc | 1254 | if (EQ (predicate, Qcommandp)) |
f927c5ae JB |
1255 | tem = Fcommandp (elt); |
1256 | else | |
1257 | { | |
1258 | GCPRO4 (tail, eltstring, allmatches, string); | |
7efd36fc | 1259 | tem = call1 (predicate, elt); |
f927c5ae JB |
1260 | UNGCPRO; |
1261 | } | |
56a98455 | 1262 | if (NILP (tem)) continue; |
f927c5ae JB |
1263 | } |
1264 | /* Ok => put it on the list. */ | |
1265 | allmatches = Fcons (eltstring, allmatches); | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | return Fnreverse (allmatches); | |
1270 | } | |
1271 | \f | |
1272 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
1273 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
1274 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
1275 | ||
b9d721de JB |
1276 | /* This comment supplies the doc string for completing-read, |
1277 | for make-docfile to see. We cannot put this in the real DEFUN | |
1278 | due to limits in the Unix cpp. | |
1279 | ||
cee54539 | 1280 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
f927c5ae | 1281 | "Read a string in the minibuffer, with completion.\n\ |
f927c5ae JB |
1282 | PROMPT is a string to prompt with; normally it ends in a colon and a space.\n\ |
1283 | TABLE is an alist whose elements' cars are strings, or an obarray.\n\ | |
1284 | PREDICATE limits completion to a subset of TABLE.\n\ | |
6b3faad8 RS |
1285 | See `try-completion' and `all-completions' for more details |
1286 | on completion, TABLE, and PREDICATE.\n\ | |
cbbc3917 | 1287 | \n\ |
f927c5ae | 1288 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless\n\ |
4ced3209 | 1289 | the input is (or completes to) an element of TABLE or is null.\n\ |
f927c5ae | 1290 | If it is also not t, Return does not exit if it does non-null completion.\n\ |
fab95625 | 1291 | If the input is null, `completing-read' returns an empty string,\n\ |
cbbc3917 RS |
1292 | regardless of the value of REQUIRE-MATCH.\n\ |
1293 | \n\ | |
f927c5ae | 1294 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.\n\ |
770970cb RS |
1295 | If it is (STRING . POSITION), the initial input\n\ |
1296 | is STRING, but point is placed POSITION characters into the string.\n\ | |
1297 | HIST, if non-nil, specifies a history list\n\ | |
1298 | and optionally the initial position in the list.\n\ | |
1299 | It can be a symbol, which is the history list variable to use,\n\ | |
1300 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
1301 | In that case, HISTVAR is the history list variable to use,\n\ | |
1302 | and HISTPOS is the initial position (the position in the list\n\ | |
4356f221 | 1303 | which INITIAL-INPUT corresponds to).\n\ |
770970cb | 1304 | Positions are counted starting from 1 at the beginning of the list.\n\ |
cee54539 KH |
1305 | DEF, if non-nil, is the default value.\n\ |
1306 | \n\ | |
1307 | If INHERIT-INPUT-METHOD is non-nil, the minibuffer inherits\n\ | |
c8c15521 | 1308 | the current input method and the setting of enable-multibyte-characters.\n\ |
cee54539 | 1309 | \n\ |
770970cb | 1310 | Completion ignores case if the ambient value of\n\ |
b9d721de JB |
1311 | `completion-ignore-case' is non-nil." |
1312 | */ | |
cee54539 | 1313 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 8, 0, |
b9d721de | 1314 | 0 /* See immediately above */) |
cee54539 | 1315 | (prompt, table, predicate, require_match, init, hist, def, inherit_input_method) |
e5d4686b | 1316 | Lisp_Object prompt, table, predicate, require_match, init, hist, def; |
cee54539 | 1317 | Lisp_Object inherit_input_method; |
f927c5ae | 1318 | { |
770970cb RS |
1319 | Lisp_Object val, histvar, histpos, position; |
1320 | int pos = 0; | |
f927c5ae | 1321 | int count = specpdl_ptr - specpdl; |
0c8ee1a2 | 1322 | struct gcpro gcpro1; |
dd9d15d6 | 1323 | int disable_multibyte = EQ (table, Qread_file_name_internal); |
0c8ee1a2 RS |
1324 | |
1325 | GCPRO1 (def); | |
1326 | ||
f927c5ae | 1327 | specbind (Qminibuffer_completion_table, table); |
7efd36fc | 1328 | specbind (Qminibuffer_completion_predicate, predicate); |
f927c5ae JB |
1329 | specbind (Qminibuffer_completion_confirm, |
1330 | EQ (require_match, Qt) ? Qnil : Qt); | |
1331 | last_exact_completion = Qnil; | |
770970cb RS |
1332 | |
1333 | position = Qnil; | |
1334 | if (!NILP (init)) | |
1335 | { | |
7510b296 | 1336 | if (CONSP (init)) |
770970cb RS |
1337 | { |
1338 | position = Fcdr (init); | |
1339 | init = Fcar (init); | |
1340 | } | |
1341 | CHECK_STRING (init, 0); | |
1342 | if (!NILP (position)) | |
1343 | { | |
1344 | CHECK_NUMBER (position, 0); | |
1345 | /* Convert to distance from end of input. */ | |
5dadd3a2 | 1346 | pos = XINT (position) - XSTRING (init)->size; |
770970cb RS |
1347 | } |
1348 | } | |
1349 | ||
7510b296 | 1350 | if (SYMBOLP (hist)) |
770970cb RS |
1351 | { |
1352 | histvar = hist; | |
1353 | histpos = Qnil; | |
1354 | } | |
1355 | else | |
1356 | { | |
1357 | histvar = Fcar_safe (hist); | |
1358 | histpos = Fcdr_safe (hist); | |
1359 | } | |
1360 | if (NILP (histvar)) | |
1361 | histvar = Qminibuffer_history; | |
1362 | if (NILP (histpos)) | |
5a866662 | 1363 | XSETFASTINT (histpos, 0); |
770970cb | 1364 | |
56a98455 | 1365 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
1366 | ? Vminibuffer_local_completion_map |
1367 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 1368 | init, prompt, make_number (pos), 0, |
cee54539 KH |
1369 | histvar, histpos, def, 0, |
1370 | !NILP (inherit_input_method)); | |
b9a86585 RS |
1371 | |
1372 | if (STRINGP (val) && XSTRING (val)->size == 0 && ! NILP (def)) | |
1373 | val = def; | |
1374 | ||
0c8ee1a2 | 1375 | RETURN_UNGCPRO (unbind_to (count, val)); |
f927c5ae JB |
1376 | } |
1377 | \f | |
f927c5ae | 1378 | Lisp_Object Fminibuffer_completion_help (); |
52b14ac0 | 1379 | Lisp_Object assoc_for_completion (); |
5d2ca7ae RS |
1380 | |
1381 | /* Test whether TXT is an exact completion. */ | |
1382 | Lisp_Object | |
1383 | test_completion (txt) | |
1384 | Lisp_Object txt; | |
1385 | { | |
1386 | Lisp_Object tem; | |
1387 | ||
1388 | if (CONSP (Vminibuffer_completion_table) | |
1389 | || NILP (Vminibuffer_completion_table)) | |
1390 | return assoc_for_completion (txt, Vminibuffer_completion_table); | |
1391 | else if (VECTORP (Vminibuffer_completion_table)) | |
1392 | { | |
1393 | /* Bypass intern-soft as that loses for nil */ | |
1394 | tem = oblookup (Vminibuffer_completion_table, | |
af2b7cd5 RS |
1395 | XSTRING (txt)->data, |
1396 | XSTRING (txt)->size, | |
fc932ac6 | 1397 | STRING_BYTES (XSTRING (txt))); |
44472c88 | 1398 | if (!SYMBOLP (tem)) |
9404446f RS |
1399 | { |
1400 | if (STRING_MULTIBYTE (txt)) | |
1401 | txt = Fstring_make_unibyte (txt); | |
1402 | else | |
1403 | txt = Fstring_make_multibyte (txt); | |
1404 | ||
1405 | tem = oblookup (Vminibuffer_completion_table, | |
1406 | XSTRING (txt)->data, | |
1407 | XSTRING (txt)->size, | |
1408 | STRING_BYTES (XSTRING (txt))); | |
1409 | if (!SYMBOLP (tem)) | |
1410 | return Qnil; | |
1411 | } | |
1412 | if (!NILP (Vminibuffer_completion_predicate)) | |
5d2ca7ae RS |
1413 | return call1 (Vminibuffer_completion_predicate, tem); |
1414 | else | |
1415 | return Qt; | |
1416 | } | |
1417 | else | |
1418 | return call3 (Vminibuffer_completion_table, txt, | |
1419 | Vminibuffer_completion_predicate, Qlambda); | |
1420 | } | |
f927c5ae JB |
1421 | |
1422 | /* returns: | |
1423 | * 0 no possible completion | |
1424 | * 1 was already an exact and unique completion | |
1425 | * 3 was already an exact completion | |
1426 | * 4 completed to an exact completion | |
1427 | * 5 some completion happened | |
1428 | * 6 no completion happened | |
1429 | */ | |
1430 | int | |
1431 | do_completion () | |
1432 | { | |
1433 | Lisp_Object completion, tem; | |
1434 | int completedp; | |
1435 | Lisp_Object last; | |
1e00c2ff | 1436 | struct gcpro gcpro1, gcpro2; |
f927c5ae JB |
1437 | |
1438 | completion = Ftry_completion (Fbuffer_string (), Vminibuffer_completion_table, | |
1439 | Vminibuffer_completion_predicate); | |
1440 | last = last_exact_completion; | |
1441 | last_exact_completion = Qnil; | |
1442 | ||
4f9b95e5 KH |
1443 | GCPRO2 (completion, last); |
1444 | ||
56a98455 | 1445 | if (NILP (completion)) |
f927c5ae JB |
1446 | { |
1447 | bitch_at_user (); | |
1448 | temp_echo_area_glyphs (" [No match]"); | |
1e00c2ff | 1449 | UNGCPRO; |
f927c5ae JB |
1450 | return 0; |
1451 | } | |
1452 | ||
1453 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1e00c2ff KH |
1454 | { |
1455 | UNGCPRO; | |
1456 | return 1; | |
1457 | } | |
f927c5ae JB |
1458 | |
1459 | /* compiler bug */ | |
1460 | tem = Fstring_equal (completion, Fbuffer_string()); | |
56a98455 | 1461 | if (completedp = NILP (tem)) |
f927c5ae JB |
1462 | { |
1463 | Ferase_buffer (); /* Some completion happened */ | |
1464 | Finsert (1, &completion); | |
1465 | } | |
1466 | ||
1467 | /* It did find a match. Do we match some possibility exactly now? */ | |
5d2ca7ae | 1468 | tem = test_completion (Fbuffer_string ()); |
56a98455 | 1469 | if (NILP (tem)) |
1e00c2ff KH |
1470 | { |
1471 | /* not an exact match */ | |
1472 | UNGCPRO; | |
f927c5ae JB |
1473 | if (completedp) |
1474 | return 5; | |
1475 | else if (auto_help) | |
1476 | Fminibuffer_completion_help (); | |
1477 | else | |
1478 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1479 | return 6; | |
1480 | } | |
1481 | else if (completedp) | |
1e00c2ff KH |
1482 | { |
1483 | UNGCPRO; | |
1484 | return 4; | |
1485 | } | |
f927c5ae JB |
1486 | /* If the last exact completion and this one were the same, |
1487 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1488 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1489 | last_exact_completion = completion; |
56a98455 | 1490 | if (!NILP (last)) |
f927c5ae JB |
1491 | { |
1492 | tem = Fbuffer_string (); | |
56a98455 | 1493 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1494 | Fminibuffer_completion_help (); |
1495 | } | |
1e00c2ff | 1496 | UNGCPRO; |
f927c5ae | 1497 | return 3; |
f927c5ae | 1498 | } |
1e00c2ff | 1499 | |
52b14ac0 JB |
1500 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1501 | ||
1502 | Lisp_Object | |
1503 | assoc_for_completion (key, list) | |
1504 | register Lisp_Object key; | |
1505 | Lisp_Object list; | |
1506 | { | |
1507 | register Lisp_Object tail; | |
1508 | ||
56a98455 | 1509 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1510 | { |
1511 | register Lisp_Object elt, tem, thiscar; | |
1512 | elt = Fcar (tail); | |
1513 | if (!CONSP (elt)) continue; | |
1514 | thiscar = Fcar (elt); | |
7510b296 | 1515 | if (!STRINGP (thiscar)) |
52b14ac0 | 1516 | continue; |
9404446f RS |
1517 | tem = Fcompare_strings (thiscar, make_number (0), Qnil, |
1518 | key, make_number (0), Qnil, | |
1519 | completion_ignore_case ? Qt : Qnil); | |
1520 | if (EQ (tem, Qt)) | |
1521 | return elt; | |
52b14ac0 JB |
1522 | QUIT; |
1523 | } | |
1524 | return Qnil; | |
1525 | } | |
f927c5ae JB |
1526 | |
1527 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
6300d782 | 1528 | "Complete the minibuffer contents as far as possible.\n\ |
2cb6da5c RS |
1529 | Return nil if there is no valid completion, else t.\n\ |
1530 | If no characters can be completed, display a list of possible completions.\n\ | |
1531 | If you repeat this command after it displayed such a list,\n\ | |
1532 | scroll the window of possible completions.") | |
f927c5ae JB |
1533 | () |
1534 | { | |
2cb6da5c RS |
1535 | register int i; |
1536 | Lisp_Object window, tem; | |
1537 | ||
1538 | /* If the previous command was not this, then mark the completion | |
1539 | buffer obsolete. */ | |
5221fd63 | 1540 | if (! EQ (current_kboard->Vlast_command, this_command)) |
2cb6da5c RS |
1541 | Vminibuf_scroll_window = Qnil; |
1542 | ||
1543 | window = Vminibuf_scroll_window; | |
1544 | /* If there's a fresh completion window with a live buffer, | |
1545 | and this command is repeated, scroll that window. */ | |
1546 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1547 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1548 | { | |
1549 | struct buffer *obuf = current_buffer; | |
1550 | ||
1551 | Fset_buffer (XWINDOW (window)->buffer); | |
1552 | tem = Fpos_visible_in_window_p (make_number (ZV), window); | |
1553 | if (! NILP (tem)) | |
1554 | /* If end is in view, scroll up to the beginning. */ | |
b7df898e | 1555 | Fset_window_start (window, make_number (BEGV), Qnil); |
2cb6da5c RS |
1556 | else |
1557 | /* Else scroll down one screen. */ | |
1558 | Fscroll_other_window (Qnil); | |
1559 | ||
1560 | set_buffer_internal (obuf); | |
1561 | return Qnil; | |
1562 | } | |
1563 | ||
1564 | i = do_completion (); | |
f927c5ae JB |
1565 | switch (i) |
1566 | { | |
1567 | case 0: | |
1568 | return Qnil; | |
1569 | ||
1570 | case 1: | |
1571 | temp_echo_area_glyphs (" [Sole completion]"); | |
1572 | break; | |
1573 | ||
1574 | case 3: | |
1575 | temp_echo_area_glyphs (" [Complete, but not unique]"); | |
1576 | break; | |
1577 | } | |
1578 | ||
1579 | return Qt; | |
1580 | } | |
e4c97a67 RS |
1581 | \f |
1582 | /* Subroutines of Fminibuffer_complete_and_exit. */ | |
1583 | ||
1584 | /* This one is called by internal_condition_case to do the real work. */ | |
1585 | ||
1586 | Lisp_Object | |
1587 | complete_and_exit_1 () | |
1588 | { | |
1589 | return make_number (do_completion ()); | |
1590 | } | |
1591 | ||
1592 | /* This one is called by internal_condition_case if an error happens. | |
1593 | Pretend the current value is an exact match. */ | |
1594 | ||
1595 | Lisp_Object | |
1596 | complete_and_exit_2 (ignore) | |
1597 | Lisp_Object ignore; | |
1598 | { | |
1599 | return make_number (1); | |
1600 | } | |
f927c5ae JB |
1601 | |
1602 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
1603 | Sminibuffer_complete_and_exit, 0, 0, "", | |
5d2ca7ae RS |
1604 | "If the minibuffer contents is a valid completion then exit.\n\ |
1605 | Otherwise try to complete it. If completion leads to a valid completion,\n\ | |
f927c5ae JB |
1606 | a repetition of this command will exit.") |
1607 | () | |
1608 | { | |
1609 | register int i; | |
e4c97a67 | 1610 | Lisp_Object val; |
f927c5ae JB |
1611 | |
1612 | /* Allow user to specify null string */ | |
1613 | if (BEGV == ZV) | |
1614 | goto exit; | |
1615 | ||
5d2ca7ae RS |
1616 | if (!NILP (test_completion (Fbuffer_string ()))) |
1617 | goto exit; | |
1618 | ||
e4c97a67 RS |
1619 | /* Call do_completion, but ignore errors. */ |
1620 | val = internal_condition_case (complete_and_exit_1, Qerror, | |
1621 | complete_and_exit_2); | |
1622 | ||
1623 | i = XFASTINT (val); | |
f927c5ae JB |
1624 | switch (i) |
1625 | { | |
1626 | case 1: | |
1627 | case 3: | |
1628 | goto exit; | |
1629 | ||
1630 | case 4: | |
56a98455 | 1631 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1632 | { |
1633 | temp_echo_area_glyphs (" [Confirm]"); | |
1634 | return Qnil; | |
1635 | } | |
1636 | else | |
1637 | goto exit; | |
1638 | ||
1639 | default: | |
1640 | return Qnil; | |
1641 | } | |
1642 | exit: | |
1643 | Fthrow (Qexit, Qnil); | |
1644 | /* NOTREACHED */ | |
1645 | } | |
1646 | ||
1647 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
1648 | 0, 0, "", | |
1649 | "Complete the minibuffer contents at most a single word.\n\ | |
1650 | After one word is completed as much as possible, a space or hyphen\n\ | |
6300d782 KH |
1651 | is added, provided that matches some possible completion.\n\ |
1652 | Return nil if there is no valid completion, else t.") | |
f927c5ae JB |
1653 | () |
1654 | { | |
69f4ef20 | 1655 | Lisp_Object completion, tem, tem1; |
af2b7cd5 | 1656 | register int i, i_byte; |
f927c5ae | 1657 | register unsigned char *completion_string; |
d7be4211 | 1658 | struct gcpro gcpro1, gcpro2; |
b278606c BF |
1659 | |
1660 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1661 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae JB |
1662 | |
1663 | completion = Ftry_completion (Fbuffer_string (), | |
1664 | Vminibuffer_completion_table, | |
1665 | Vminibuffer_completion_predicate); | |
56a98455 | 1666 | if (NILP (completion)) |
f927c5ae JB |
1667 | { |
1668 | bitch_at_user (); | |
1669 | temp_echo_area_glyphs (" [No match]"); | |
1670 | return Qnil; | |
1671 | } | |
1672 | if (EQ (completion, Qt)) | |
1673 | return Qnil; | |
1674 | ||
b278606c | 1675 | #if 0 /* How the below code used to look, for reference. */ |
f927c5ae JB |
1676 | tem = Fbuffer_string (); |
1677 | b = XSTRING (tem)->data; | |
1678 | i = ZV - 1 - XSTRING (completion)->size; | |
1679 | p = XSTRING (completion)->data; | |
1680 | if (i > 0 || | |
1681 | 0 <= scmp (b, p, ZV - 1)) | |
1682 | { | |
1683 | i = 1; | |
1684 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1685 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1686 | i++; | |
1687 | del_range (1, i + 1); | |
1688 | SET_PT (ZV); | |
1689 | } | |
1690 | #else /* Rewritten code */ | |
1691 | { | |
69f4ef20 | 1692 | int buffer_nchars, completion_nchars; |
f927c5ae | 1693 | |
59860a8c | 1694 | CHECK_STRING (completion, 0); |
f927c5ae | 1695 | tem = Fbuffer_string (); |
d7be4211 | 1696 | GCPRO2 (completion, tem); |
719b4a40 RS |
1697 | /* If reading a file name, |
1698 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
1699 | if (EQ (Vminibuffer_completion_table, Qread_file_name_internal)) | |
1700 | { | |
1701 | Lisp_Object substituted; | |
1702 | substituted = Fsubstitute_in_file_name (tem); | |
1703 | if (! EQ (substituted, tem)) | |
1704 | { | |
1705 | tem = substituted; | |
1706 | Ferase_buffer (); | |
af2b7cd5 | 1707 | insert_from_string (tem, 0, 0, XSTRING (tem)->size, |
fc932ac6 | 1708 | STRING_BYTES (XSTRING (tem)), 0); |
719b4a40 RS |
1709 | } |
1710 | } | |
69f4ef20 RS |
1711 | buffer_nchars = XSTRING (tem)->size; /* ie ZV - BEGV */ |
1712 | completion_nchars = XSTRING (completion)->size; | |
1713 | i = buffer_nchars - completion_nchars; | |
1714 | if (i > 0 | |
1715 | || | |
1716 | (tem1 = Fcompare_strings (tem, make_number (0), | |
1717 | make_number (buffer_nchars), | |
1718 | completion, make_number (0), | |
1719 | make_number (buffer_nchars), | |
1720 | completion_ignore_case ? Qt : Qnil), | |
1721 | ! EQ (tem1, Qt))) | |
f927c5ae | 1722 | { |
69f4ef20 RS |
1723 | int start_pos; |
1724 | ||
1725 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1726 | if (i <= 0) i = 1; | |
1727 | start_pos= i; | |
1728 | buffer_nchars -= i; | |
669c6673 | 1729 | while (i > 0) |
69f4ef20 | 1730 | { |
669c6673 | 1731 | tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil, |
69f4ef20 RS |
1732 | completion, make_number (0), |
1733 | make_number (buffer_nchars), | |
1734 | completion_ignore_case ? Qt : Qnil); | |
1735 | start_pos++; | |
1736 | if (EQ (tem1, Qt)) | |
1737 | break; | |
1738 | i++; | |
669c6673 | 1739 | buffer_nchars--; |
69f4ef20 RS |
1740 | } |
1741 | del_range (1, i + 1); | |
a9c26562 | 1742 | SET_PT_BOTH (ZV, ZV_BYTE); |
f927c5ae | 1743 | } |
d7be4211 | 1744 | UNGCPRO; |
f927c5ae JB |
1745 | } |
1746 | #endif /* Rewritten code */ | |
af2b7cd5 RS |
1747 | i_byte = ZV_BYTE - BEGV_BYTE; |
1748 | i = ZV - BEGV; | |
f927c5ae JB |
1749 | |
1750 | /* If completion finds next char not unique, | |
b278606c | 1751 | consider adding a space or a hyphen. */ |
f927c5ae JB |
1752 | if (i == XSTRING (completion)->size) |
1753 | { | |
b278606c | 1754 | GCPRO1 (completion); |
f927c5ae JB |
1755 | tem = Ftry_completion (concat2 (Fbuffer_string (), build_string (" ")), |
1756 | Vminibuffer_completion_table, | |
1757 | Vminibuffer_completion_predicate); | |
b278606c BF |
1758 | UNGCPRO; |
1759 | ||
7510b296 | 1760 | if (STRINGP (tem)) |
f927c5ae JB |
1761 | completion = tem; |
1762 | else | |
1763 | { | |
b278606c BF |
1764 | GCPRO1 (completion); |
1765 | tem = | |
1766 | Ftry_completion (concat2 (Fbuffer_string (), build_string ("-")), | |
1767 | Vminibuffer_completion_table, | |
1768 | Vminibuffer_completion_predicate); | |
1769 | UNGCPRO; | |
1770 | ||
7510b296 | 1771 | if (STRINGP (tem)) |
f927c5ae JB |
1772 | completion = tem; |
1773 | } | |
1774 | } | |
1775 | ||
1776 | /* Now find first word-break in the stuff found by completion. | |
1777 | i gets index in string of where to stop completing. */ | |
d50a3d2a KH |
1778 | { |
1779 | int len, c; | |
b278606c | 1780 | |
d50a3d2a | 1781 | completion_string = XSTRING (completion)->data; |
fc932ac6 | 1782 | for (; i_byte < STRING_BYTES (XSTRING (completion)); i_byte += len, i++) |
d50a3d2a | 1783 | { |
af2b7cd5 RS |
1784 | c = STRING_CHAR_AND_LENGTH (completion_string + i_byte, |
1785 | XSTRING (completion)->size - i_byte, | |
d50a3d2a KH |
1786 | len); |
1787 | if (SYNTAX (c) != Sword) | |
1788 | { | |
af2b7cd5 RS |
1789 | i_byte += len; |
1790 | i++; | |
d50a3d2a KH |
1791 | break; |
1792 | } | |
1793 | } | |
1794 | } | |
f927c5ae JB |
1795 | |
1796 | /* If got no characters, print help for user. */ | |
1797 | ||
af2b7cd5 | 1798 | if (i_byte == ZV_BYTE - BEGV_BYTE) |
f927c5ae JB |
1799 | { |
1800 | if (auto_help) | |
1801 | Fminibuffer_completion_help (); | |
1802 | return Qnil; | |
1803 | } | |
1804 | ||
1805 | /* Otherwise insert in minibuffer the chars we got */ | |
1806 | ||
1807 | Ferase_buffer (); | |
af2b7cd5 | 1808 | insert_from_string (completion, 0, 0, i, i_byte, 1); |
f927c5ae JB |
1809 | return Qt; |
1810 | } | |
1811 | \f | |
1812 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
1813 | 1, 1, 0, | |
2dc2b736 | 1814 | "Display the list of completions, COMPLETIONS, using `standard-output'.\n\ |
f927c5ae | 1815 | Each element may be just a symbol or string\n\ |
2d7e41fe RS |
1816 | or may be a list of two strings to be printed as if concatenated.\n\ |
1817 | `standard-output' must be a buffer.\n\ | |
1818 | At the end, run the normal hook `completion-setup-hook'.\n\ | |
1819 | It can find the completion buffer in `standard-output'.") | |
f927c5ae JB |
1820 | (completions) |
1821 | Lisp_Object completions; | |
1822 | { | |
dae36123 | 1823 | Lisp_Object tail, elt; |
f927c5ae | 1824 | register int i; |
2dc2b736 | 1825 | int column = 0; |
dae36123 | 1826 | struct gcpro gcpro1, gcpro2; |
2dc2b736 | 1827 | struct buffer *old = current_buffer; |
681f5af4 | 1828 | int first = 1; |
486cc7fb RS |
1829 | |
1830 | /* Note that (when it matters) every variable | |
dae36123 RS |
1831 | points to a non-string that is pointed to by COMPLETIONS, |
1832 | except for ELT. ELT can be pointing to a string | |
1833 | when terpri or Findent_to calls a change hook. */ | |
1834 | elt = Qnil; | |
1835 | GCPRO2 (completions, elt); | |
486cc7fb | 1836 | |
7510b296 | 1837 | if (BUFFERP (Vstandard_output)) |
2dc2b736 | 1838 | set_buffer_internal (XBUFFER (Vstandard_output)); |
f927c5ae | 1839 | |
56a98455 | 1840 | if (NILP (completions)) |
cfc736bf RS |
1841 | write_string ("There are no possible completions of what you have typed.", |
1842 | -1); | |
f927c5ae JB |
1843 | else |
1844 | { | |
2dc2b736 | 1845 | write_string ("Possible completions are:", -1); |
56a98455 | 1846 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae | 1847 | { |
ec067ec7 | 1848 | Lisp_Object tem, string; |
681f5af4 | 1849 | int length; |
47d7d104 | 1850 | Lisp_Object startpos, endpos; |
681f5af4 RS |
1851 | |
1852 | elt = Fcar (tail); | |
1853 | /* Compute the length of this element. */ | |
1854 | if (CONSP (elt)) | |
1855 | { | |
49db96ce | 1856 | tem = XCAR (elt); |
681f5af4 | 1857 | CHECK_STRING (tem, 0); |
49db96ce | 1858 | length = XSTRING (tem)->size; |
681f5af4 | 1859 | |
49db96ce | 1860 | tem = Fcar (XCDR (elt)); |
681f5af4 | 1861 | CHECK_STRING (tem, 0); |
49db96ce | 1862 | length += XSTRING (tem)->size; |
681f5af4 RS |
1863 | } |
1864 | else | |
1865 | { | |
1866 | CHECK_STRING (elt, 0); | |
49db96ce | 1867 | length = XSTRING (elt)->size; |
681f5af4 RS |
1868 | } |
1869 | ||
1870 | /* This does a bad job for narrower than usual windows. | |
1871 | Sadly, the window it will appear in is not known | |
1872 | until after the text has been made. */ | |
1873 | ||
47d7d104 RS |
1874 | if (BUFFERP (Vstandard_output)) |
1875 | XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output))); | |
1876 | ||
681f5af4 RS |
1877 | /* If the previous completion was very wide, |
1878 | or we have two on this line already, | |
1879 | don't put another on the same line. */ | |
1880 | if (column > 33 || first | |
1881 | /* If this is really wide, don't put it second on a line. */ | |
1882 | || column > 0 && length > 45) | |
1883 | { | |
1884 | Fterpri (Qnil); | |
1885 | column = 0; | |
1886 | } | |
1887 | /* Otherwise advance to column 35. */ | |
1888 | else | |
2dc2b736 | 1889 | { |
7510b296 | 1890 | if (BUFFERP (Vstandard_output)) |
681f5af4 RS |
1891 | { |
1892 | tem = Findent_to (make_number (35), make_number (2)); | |
47d7d104 | 1893 | |
681f5af4 RS |
1894 | column = XINT (tem); |
1895 | } | |
2dc2b736 RS |
1896 | else |
1897 | { | |
1898 | do | |
1899 | { | |
1900 | write_string (" ", -1); | |
1901 | column++; | |
1902 | } | |
1903 | while (column < 35); | |
1904 | } | |
1905 | } | |
681f5af4 | 1906 | |
47d7d104 RS |
1907 | if (BUFFERP (Vstandard_output)) |
1908 | { | |
1909 | XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output))); | |
1910 | Fset_text_properties (startpos, endpos, | |
1911 | Qnil, Vstandard_output); | |
1912 | } | |
1913 | ||
ec067ec7 | 1914 | /* Output this element. |
9404446f | 1915 | If necessary, convert it to unibyte or to multibyte first. */ |
f927c5ae | 1916 | if (CONSP (elt)) |
ec067ec7 | 1917 | string = Fcar (elt); |
f927c5ae | 1918 | else |
ec067ec7 RS |
1919 | string = elt; |
1920 | if (NILP (current_buffer->enable_multibyte_characters) | |
1921 | && STRING_MULTIBYTE (string)) | |
1922 | string = Fstring_make_unibyte (string); | |
9404446f RS |
1923 | else if (!NILP (current_buffer->enable_multibyte_characters) |
1924 | && !STRING_MULTIBYTE (string)) | |
1925 | string = Fstring_make_multibyte (string); | |
ec067ec7 RS |
1926 | Fprinc (string, Qnil); |
1927 | ||
1928 | /* Output the annotation for this element. */ | |
1929 | if (CONSP (elt)) | |
1930 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
681f5af4 | 1931 | |
ec067ec7 | 1932 | /* Update COLUMN for what we have output. */ |
681f5af4 RS |
1933 | column += length; |
1934 | ||
1935 | /* If output is to a buffer, recompute COLUMN in a way | |
1936 | that takes account of character widths. */ | |
1937 | if (BUFFERP (Vstandard_output)) | |
2dc2b736 | 1938 | { |
681f5af4 RS |
1939 | tem = Fcurrent_column (); |
1940 | column = XINT (tem); | |
2dc2b736 | 1941 | } |
681f5af4 RS |
1942 | |
1943 | first = 0; | |
f927c5ae JB |
1944 | } |
1945 | } | |
2dc2b736 | 1946 | |
486cc7fb RS |
1947 | UNGCPRO; |
1948 | ||
7510b296 | 1949 | if (BUFFERP (Vstandard_output)) |
2d7e41fe RS |
1950 | set_buffer_internal (old); |
1951 | ||
cfc736bf RS |
1952 | if (!NILP (Vrun_hooks)) |
1953 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
1954 | ||
f927c5ae JB |
1955 | return Qnil; |
1956 | } | |
1957 | ||
1958 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
1959 | 0, 0, "", | |
1960 | "Display a list of possible completions of the current minibuffer contents.") | |
1961 | () | |
1962 | { | |
1963 | Lisp_Object completions; | |
1964 | ||
1965 | message ("Making completion list..."); | |
1966 | completions = Fall_completions (Fbuffer_string (), | |
1967 | Vminibuffer_completion_table, | |
89a255dc RS |
1968 | Vminibuffer_completion_predicate, |
1969 | Qt); | |
f927c5ae JB |
1970 | echo_area_glyphs = 0; |
1971 | ||
56a98455 | 1972 | if (NILP (completions)) |
f927c5ae JB |
1973 | { |
1974 | bitch_at_user (); | |
1975 | temp_echo_area_glyphs (" [No completions]"); | |
1976 | } | |
1977 | else | |
1978 | internal_with_output_to_temp_buffer ("*Completions*", | |
1979 | Fdisplay_completion_list, | |
1980 | Fsort (completions, Qstring_lessp)); | |
1981 | return Qnil; | |
1982 | } | |
1983 | \f | |
1984 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
1985 | "Terminate minibuffer input.") | |
1986 | () | |
1987 | { | |
7510b296 | 1988 | if (INTEGERP (last_command_char)) |
dab3ab3c | 1989 | internal_self_insert (XINT (last_command_char), 0); |
f927c5ae JB |
1990 | else |
1991 | bitch_at_user (); | |
1992 | ||
1993 | Fthrow (Qexit, Qnil); | |
1994 | } | |
1995 | ||
1996 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
1997 | "Terminate this minibuffer argument.") | |
1998 | () | |
1999 | { | |
2000 | Fthrow (Qexit, Qnil); | |
2001 | } | |
2002 | ||
2003 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
2004 | "Return current depth of activations of minibuffer, a nonnegative integer.") | |
2005 | () | |
2006 | { | |
2007 | return make_number (minibuf_level); | |
2008 | } | |
2009 | ||
37e9a934 KH |
2010 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
2011 | "Return the prompt string of the currently-active minibuffer.\n\ | |
2012 | If no minibuffer is active, return nil.") | |
2013 | () | |
2014 | { | |
4d04c1f1 | 2015 | return Fcopy_sequence (minibuf_prompt); |
37e9a934 KH |
2016 | } |
2017 | ||
2018 | DEFUN ("minibuffer-prompt-width", Fminibuffer_prompt_width, | |
2019 | Sminibuffer_prompt_width, 0, 0, 0, | |
c5896ef4 | 2020 | "Return the display width of the minibuffer prompt.") |
37e9a934 KH |
2021 | () |
2022 | { | |
2023 | Lisp_Object width; | |
5a866662 | 2024 | XSETFASTINT (width, minibuf_prompt_width); |
37e9a934 KH |
2025 | return width; |
2026 | } | |
f927c5ae | 2027 | \f |
2d955a50 RS |
2028 | /* Temporarily display the string M at the end of the current |
2029 | minibuffer contents. This is used to display things like | |
2030 | "[No Match]" when the user requests a completion for a prefix | |
2031 | that has no possible completions, and other quick, unobtrusive | |
2032 | messages. */ | |
2033 | ||
9d815fd9 | 2034 | void |
2d955a50 RS |
2035 | temp_echo_area_glyphs (m) |
2036 | char *m; | |
2037 | { | |
2038 | int osize = ZV; | |
a9c26562 | 2039 | int osize_byte = ZV_BYTE; |
2d955a50 | 2040 | int opoint = PT; |
a9c26562 | 2041 | int opoint_byte = PT_BYTE; |
2d955a50 RS |
2042 | Lisp_Object oinhibit; |
2043 | oinhibit = Vinhibit_quit; | |
2044 | ||
2045 | /* Clear out any old echo-area message to make way for our new thing. */ | |
2046 | message (0); | |
2047 | ||
a9c26562 | 2048 | SET_PT_BOTH (osize, osize_byte); |
2d955a50 | 2049 | insert_string (m); |
a9c26562 | 2050 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2051 | Vinhibit_quit = Qt; |
2052 | Fsit_for (make_number (2), Qnil, Qnil); | |
bc69581b | 2053 | del_range_both (osize, osize_byte, ZV, ZV_BYTE, 1); |
a9c26562 | 2054 | SET_PT_BOTH (opoint, opoint_byte); |
2d955a50 RS |
2055 | if (!NILP (Vquit_flag)) |
2056 | { | |
2057 | Vquit_flag = Qnil; | |
2058 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); | |
2059 | } | |
2060 | Vinhibit_quit = oinhibit; | |
2061 | } | |
2062 | ||
2063 | DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message, | |
2064 | 1, 1, 0, | |
2065 | "Temporarily display STRING at the end of the minibuffer.\n\ | |
2066 | The text is displayed for two seconds,\n\ | |
2067 | or until the next input event arrives, whichever comes first.") | |
2068 | (string) | |
2069 | Lisp_Object string; | |
2070 | { | |
2071 | temp_echo_area_glyphs (XSTRING (string)->data); | |
2072 | return Qnil; | |
2073 | } | |
2074 | \f | |
9d815fd9 | 2075 | void |
f927c5ae JB |
2076 | init_minibuf_once () |
2077 | { | |
2078 | Vminibuffer_list = Qnil; | |
2079 | staticpro (&Vminibuffer_list); | |
2080 | } | |
2081 | ||
9d815fd9 | 2082 | void |
f927c5ae JB |
2083 | syms_of_minibuf () |
2084 | { | |
2085 | minibuf_level = 0; | |
4d04c1f1 KH |
2086 | minibuf_prompt = Qnil; |
2087 | staticpro (&minibuf_prompt); | |
2088 | ||
2089 | minibuf_save_list = Qnil; | |
2090 | staticpro (&minibuf_save_list); | |
f927c5ae | 2091 | |
719b4a40 RS |
2092 | Qread_file_name_internal = intern ("read-file-name-internal"); |
2093 | staticpro (&Qread_file_name_internal); | |
2094 | ||
e5d4686b RS |
2095 | Qminibuffer_default = intern ("minibuffer-default"); |
2096 | staticpro (&Qminibuffer_default); | |
2097 | Fset (Qminibuffer_default, Qnil); | |
2098 | ||
f927c5ae JB |
2099 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
2100 | staticpro (&Qminibuffer_completion_table); | |
2101 | ||
2102 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
2103 | staticpro (&Qminibuffer_completion_confirm); | |
2104 | ||
2105 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
2106 | staticpro (&Qminibuffer_completion_predicate); | |
2107 | ||
1e00c2ff KH |
2108 | staticpro (&last_exact_completion); |
2109 | last_exact_completion = Qnil; | |
2110 | ||
f927c5ae JB |
2111 | staticpro (&last_minibuf_string); |
2112 | last_minibuf_string = Qnil; | |
2113 | ||
2114 | Quser_variable_p = intern ("user-variable-p"); | |
2115 | staticpro (&Quser_variable_p); | |
2116 | ||
770970cb RS |
2117 | Qminibuffer_history = intern ("minibuffer-history"); |
2118 | staticpro (&Qminibuffer_history); | |
f927c5ae | 2119 | |
406e55df RS |
2120 | Qbuffer_name_history = intern ("buffer-name-history"); |
2121 | staticpro (&Qbuffer_name_history); | |
2122 | ||
5c781212 RS |
2123 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
2124 | staticpro (&Qminibuffer_setup_hook); | |
2125 | ||
177aecf9 KH |
2126 | Qminibuffer_exit_hook = intern ("minibuffer-exit-hook"); |
2127 | staticpro (&Qminibuffer_exit_hook); | |
2128 | ||
77aa8edf RS |
2129 | Qhistory_length = intern ("history-length"); |
2130 | staticpro (&Qhistory_length); | |
2131 | ||
cee54539 KH |
2132 | Qcurrent_input_method = intern ("current-input-method"); |
2133 | staticpro (&Qcurrent_input_method); | |
2134 | ||
2135 | Qactivate_input_method = intern ("activate-input-method"); | |
2136 | staticpro (&Qactivate_input_method); | |
2137 | ||
eebbfb01 KH |
2138 | DEFVAR_LISP ("read-buffer-function", &Vread_buffer_function, |
2139 | "If this is non-nil, `read-buffer' does its work by calling this function."); | |
2140 | Vread_buffer_function = Qnil; | |
2141 | ||
5c781212 RS |
2142 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, |
2143 | "Normal hook run just after entry to minibuffer."); | |
2144 | Vminibuffer_setup_hook = Qnil; | |
2145 | ||
177aecf9 KH |
2146 | DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook, |
2147 | "Normal hook run just after exit from minibuffer."); | |
2148 | Vminibuffer_exit_hook = Qnil; | |
2149 | ||
77aa8edf RS |
2150 | DEFVAR_LISP ("history-length", &Vhistory_length, |
2151 | "*Maximum length for history lists before truncation takes place.\n\ | |
2152 | A number means that length; t means infinite. Truncation takes place\n\ | |
2153 | just after a new element is inserted. Setting the history-length\n\ | |
2154 | property of a history variable overrides this default."); | |
2155 | XSETFASTINT (Vhistory_length, 30); | |
2156 | ||
f927c5ae JB |
2157 | DEFVAR_BOOL ("completion-auto-help", &auto_help, |
2158 | "*Non-nil means automatically provide help for invalid completion input."); | |
2159 | auto_help = 1; | |
2160 | ||
2161 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, | |
2162 | "Non-nil means don't consider case significant in completion."); | |
2163 | completion_ignore_case = 0; | |
2164 | ||
2165 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, | |
2166 | "*Non-nil means to allow minibuffer commands while in the minibuffer.\n\ | |
7e3e3ad1 | 2167 | This variable makes a difference whenever the minibuffer window is active."); |
f927c5ae JB |
2168 | enable_recursive_minibuffers = 0; |
2169 | ||
2170 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, | |
2171 | "Alist or obarray used for completion in the minibuffer.\n\ | |
2172 | This becomes the ALIST argument to `try-completion' and `all-completion'.\n\ | |
2173 | \n\ | |
2174 | The value may alternatively be a function, which is given three arguments:\n\ | |
2175 | STRING, the current buffer contents;\n\ | |
2176 | PREDICATE, the predicate for filtering possible matches;\n\ | |
2177 | CODE, which says what kind of things to do.\n\ | |
2178 | CODE can be nil, t or `lambda'.\n\ | |
2179 | nil means to return the best completion of STRING, or nil if there is none.\n\ | |
2180 | t means to return a list of all possible completions of STRING.\n\ | |
2181 | `lambda' means to return t if STRING is a valid completion as it stands."); | |
2182 | Vminibuffer_completion_table = Qnil; | |
2183 | ||
2184 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, | |
2185 | "Within call to `completing-read', this holds the PREDICATE argument."); | |
2186 | Vminibuffer_completion_predicate = Qnil; | |
2187 | ||
2188 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, | |
2189 | "Non-nil => demand confirmation of completion before exiting minibuffer."); | |
2190 | Vminibuffer_completion_confirm = Qnil; | |
2191 | ||
2192 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, | |
2193 | "Value that `help-form' takes on inside the minibuffer."); | |
2194 | Vminibuffer_help_form = Qnil; | |
2195 | ||
770970cb RS |
2196 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
2197 | "History list symbol to add minibuffer values to.\n\ | |
2fa2413b RS |
2198 | Each string of minibuffer input, as it appears on exit from the minibuffer,\n\ |
2199 | is added with\n\ | |
770970cb RS |
2200 | (set minibuffer-history-variable\n\ |
2201 | (cons STRING (symbol-value minibuffer-history-variable)))"); | |
5a866662 | 2202 | XSETFASTINT (Vminibuffer_history_variable, 0); |
770970cb RS |
2203 | |
2204 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, | |
2205 | "Current position of redoing in the history list."); | |
2206 | Vminibuffer_history_position = Qnil; | |
2207 | ||
6a9ee000 | 2208 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
e98bcc1a RS |
2209 | "*Non-nil means entering the minibuffer raises the minibuffer's frame.\n\ |
2210 | Some uses of the echo area also raise that frame (since they use it too)."); | |
6a9ee000 RS |
2211 | minibuffer_auto_raise = 0; |
2212 | ||
42006772 RS |
2213 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
2214 | "List of regexps that should restrict possible completions."); | |
2215 | Vcompletion_regexp_list = Qnil; | |
2216 | ||
c3421833 RS |
2217 | DEFVAR_BOOL ("minibuffer-allow-text-properties", |
2218 | &minibuffer_allow_text_properties, | |
2219 | "Non-nil means `read-from-miniffer' should not discard text properties.\n\ | |
2220 | This also affects `read-string', but it does not affect `read-minibuffer',\n\ | |
2221 | `read-no-blanks-input', or any of the functions that do minibuffer input\n\ | |
2bfbde2b | 2222 | with completion; they always discard text properties."); |
c3421833 RS |
2223 | minibuffer_allow_text_properties = 0; |
2224 | ||
68313ed8 | 2225 | defsubr (&Sset_minibuffer_window); |
f927c5ae JB |
2226 | defsubr (&Sread_from_minibuffer); |
2227 | defsubr (&Seval_minibuffer); | |
2228 | defsubr (&Sread_minibuffer); | |
2229 | defsubr (&Sread_string); | |
2230 | defsubr (&Sread_command); | |
2231 | defsubr (&Sread_variable); | |
2232 | defsubr (&Sread_buffer); | |
2233 | defsubr (&Sread_no_blanks_input); | |
2234 | defsubr (&Sminibuffer_depth); | |
37e9a934 KH |
2235 | defsubr (&Sminibuffer_prompt); |
2236 | defsubr (&Sminibuffer_prompt_width); | |
f927c5ae JB |
2237 | |
2238 | defsubr (&Stry_completion); | |
2239 | defsubr (&Sall_completions); | |
2240 | defsubr (&Scompleting_read); | |
2241 | defsubr (&Sminibuffer_complete); | |
2242 | defsubr (&Sminibuffer_complete_word); | |
2243 | defsubr (&Sminibuffer_complete_and_exit); | |
2244 | defsubr (&Sdisplay_completion_list); | |
2245 | defsubr (&Sminibuffer_completion_help); | |
2246 | ||
2247 | defsubr (&Sself_insert_and_exit); | |
2248 | defsubr (&Sexit_minibuffer); | |
2249 | ||
2d955a50 | 2250 | defsubr (&Sminibuffer_message); |
f927c5ae JB |
2251 | } |
2252 | ||
9d815fd9 | 2253 | void |
f927c5ae JB |
2254 | keys_of_minibuf () |
2255 | { | |
2256 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
2257 | "abort-recursive-edit"); | |
2258 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
2259 | "exit-minibuffer"); | |
2260 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
2261 | "exit-minibuffer"); | |
2262 | ||
2263 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('g'), | |
2264 | "abort-recursive-edit"); | |
2265 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('m'), | |
2266 | "exit-minibuffer"); | |
2267 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('j'), | |
2268 | "exit-minibuffer"); | |
2269 | ||
2270 | initial_define_key (Vminibuffer_local_ns_map, ' ', | |
2271 | "exit-minibuffer"); | |
2272 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
2273 | "exit-minibuffer"); | |
2274 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
2275 | "self-insert-and-exit"); | |
2276 | ||
2277 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('g'), | |
2278 | "abort-recursive-edit"); | |
2279 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('m'), | |
2280 | "exit-minibuffer"); | |
2281 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('j'), | |
2282 | "exit-minibuffer"); | |
2283 | ||
2284 | initial_define_key (Vminibuffer_local_completion_map, '\t', | |
2285 | "minibuffer-complete"); | |
2286 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
2287 | "minibuffer-complete-word"); | |
2288 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
2289 | "minibuffer-completion-help"); | |
2290 | ||
2291 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('g'), | |
2292 | "abort-recursive-edit"); | |
2293 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), | |
2294 | "minibuffer-complete-and-exit"); | |
2295 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
2296 | "minibuffer-complete-and-exit"); | |
2297 | initial_define_key (Vminibuffer_local_must_match_map, '\t', | |
2298 | "minibuffer-complete"); | |
2299 | initial_define_key (Vminibuffer_local_must_match_map, ' ', | |
2300 | "minibuffer-complete-word"); | |
2301 | initial_define_key (Vminibuffer_local_must_match_map, '?', | |
2302 | "minibuffer-completion-help"); | |
2303 | } |