Commit | Line | Data |
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f927c5ae | 1 | /* Minibuffer input and completion. |
c6c5df7f | 2 | Copyright (C) 1985, 1986, 1993 Free Software Foundation, Inc. |
f927c5ae JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
ffd56f97 | 8 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
18160b98 | 21 | #include <config.h> |
f927c5ae JB |
22 | #include "lisp.h" |
23 | #include "commands.h" | |
24 | #include "buffer.h" | |
25 | #include "dispextern.h" | |
ff11dfa1 | 26 | #include "frame.h" |
f927c5ae JB |
27 | #include "window.h" |
28 | #include "syntax.h" | |
29 | ||
30 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
31 | ||
a4e71d81 KH |
32 | extern int quit_char; |
33 | ||
f927c5ae JB |
34 | /* List of buffers for use as minibuffers. |
35 | The first element of the list is used for the outermost minibuffer invocation, | |
36 | the next element is used for a recursive minibuffer invocation, etc. | |
37 | The list is extended at the end as deeped minibuffer recursions are encountered. */ | |
38 | Lisp_Object Vminibuffer_list; | |
39 | ||
40 | struct minibuf_save_data | |
41 | { | |
42 | char *prompt; | |
43 | int prompt_width; | |
44 | Lisp_Object help_form; | |
45 | Lisp_Object current_prefix_arg; | |
770970cb RS |
46 | Lisp_Object history_position; |
47 | Lisp_Object history_variable; | |
f927c5ae JB |
48 | }; |
49 | ||
50 | int minibuf_save_vector_size; | |
51 | struct minibuf_save_data *minibuf_save_vector; | |
52 | ||
53 | /* Depth in minibuffer invocations. */ | |
54 | int minibuf_level; | |
55 | ||
56 | /* Nonzero means display completion help for invalid input */ | |
57 | int auto_help; | |
58 | ||
b278606c | 59 | /* Fread_minibuffer leaves the input here as a string. */ |
f927c5ae JB |
60 | Lisp_Object last_minibuf_string; |
61 | ||
62 | /* Nonzero means let functions called when within a minibuffer | |
63 | invoke recursive minibuffers (to read arguments, or whatever) */ | |
64 | int enable_recursive_minibuffers; | |
65 | ||
66 | /* help-form is bound to this while in the minibuffer. */ | |
67 | ||
68 | Lisp_Object Vminibuffer_help_form; | |
69 | ||
770970cb RS |
70 | /* Variable which is the history list to add minibuffer values to. */ |
71 | ||
72 | Lisp_Object Vminibuffer_history_variable; | |
73 | ||
74 | /* Current position in the history list (adjusted by M-n and M-p). */ | |
75 | ||
76 | Lisp_Object Vminibuffer_history_position; | |
77 | ||
78 | Lisp_Object Qminibuffer_history; | |
79 | ||
719b4a40 RS |
80 | Lisp_Object Qread_file_name_internal; |
81 | ||
5c781212 RS |
82 | /* Normal hook for entry to minibuffer. */ |
83 | ||
84 | Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook; | |
85 | ||
f927c5ae JB |
86 | /* Nonzero means completion ignores case. */ |
87 | ||
88 | int completion_ignore_case; | |
89 | ||
42006772 RS |
90 | /* List of regexps that should restrict possible completions. */ |
91 | ||
92 | Lisp_Object Vcompletion_regexp_list; | |
93 | ||
6a9ee000 RS |
94 | /* Nonzero means raise the minibuffer frame when the minibuffer |
95 | is entered. */ | |
96 | ||
97 | int minibuffer_auto_raise; | |
98 | ||
f927c5ae JB |
99 | /* If last completion attempt reported "Complete but not unique" |
100 | then this is the string completed then; otherwise this is nil. */ | |
101 | ||
102 | static Lisp_Object last_exact_completion; | |
103 | ||
104 | Lisp_Object Quser_variable_p; | |
2cb6da5c RS |
105 | |
106 | /* Non-nil means it is the window for C-M-v to scroll | |
107 | when the minibuffer is selected. */ | |
108 | extern Lisp_Object Vminibuf_scroll_window; | |
f927c5ae JB |
109 | \f |
110 | /* Actual minibuffer invocation. */ | |
111 | ||
112 | void read_minibuf_unwind (); | |
113 | Lisp_Object get_minibuffer (); | |
114 | Lisp_Object read_minibuf (); | |
115 | ||
770970cb | 116 | /* Read from the minibuffer using keymap MAP, initial contents INITIAL |
85b5fe07 | 117 | (a string), putting point minus BACKUP_N chars from the end of INITIAL, |
770970cb | 118 | prompting with PROMPT (a string), using history list HISTVAR |
85b5fe07 | 119 | with initial position HISTPOS. (BACKUP_N should be <= 0.) |
770970cb RS |
120 | |
121 | Normally return the result as a string (the text that was read), | |
b278606c BF |
122 | but if EXPFLAG is non-nil, read it and return the object read. |
123 | If HISTVAR is given, save the value read on that history only if it doesn't | |
124 | match the front of that history list exactly. The value is pushed onto | |
125 | the list as the string that was read, or as the object that resulted iff | |
126 | EXPFLAG is non-nil. */ | |
770970cb | 127 | |
f927c5ae | 128 | Lisp_Object |
770970cb | 129 | read_minibuf (map, initial, prompt, backup_n, expflag, histvar, histpos) |
f927c5ae JB |
130 | Lisp_Object map; |
131 | Lisp_Object initial; | |
132 | Lisp_Object prompt; | |
5061d9c3 | 133 | Lisp_Object backup_n; |
f927c5ae | 134 | int expflag; |
770970cb RS |
135 | Lisp_Object histvar; |
136 | Lisp_Object histpos; | |
f927c5ae JB |
137 | { |
138 | register Lisp_Object val; | |
139 | int count = specpdl_ptr - specpdl; | |
5061d9c3 | 140 | Lisp_Object mini_frame; |
f927c5ae | 141 | struct gcpro gcpro1, gcpro2; |
f927c5ae JB |
142 | |
143 | if (XTYPE (prompt) != Lisp_String) | |
144 | prompt = build_string (""); | |
145 | ||
146 | /* Emacs in -batch mode calls minibuffer: print the prompt. */ | |
147 | if (noninteractive && XTYPE (prompt) == Lisp_String) | |
148 | printf ("%s", XSTRING (prompt)->data); | |
149 | ||
150 | if (!enable_recursive_minibuffers | |
151 | && minibuf_level > 0 | |
152 | && (EQ (selected_window, minibuf_window))) | |
153 | #if 0 | |
ff11dfa1 | 154 | || selected_frame != XFRAME (WINDOW_FRAME (XWINDOW (minibuf_window))) |
f927c5ae JB |
155 | #endif |
156 | error ("Command attempted to use minibuffer while in minibuffer"); | |
157 | ||
158 | if (minibuf_level == minibuf_save_vector_size) | |
159 | minibuf_save_vector = | |
160 | (struct minibuf_save_data *) | |
161 | xrealloc (minibuf_save_vector, | |
162 | (minibuf_save_vector_size *= 2) | |
163 | * sizeof (struct minibuf_save_data)); | |
164 | minibuf_save_vector[minibuf_level].prompt = minibuf_prompt; | |
165 | minibuf_save_vector[minibuf_level].prompt_width = minibuf_prompt_width; | |
166 | minibuf_prompt_width = 0; | |
167 | /* >> Why is this done this way rather than binding these variables? */ | |
168 | minibuf_save_vector[minibuf_level].help_form = Vhelp_form; | |
169 | minibuf_save_vector[minibuf_level].current_prefix_arg = Vcurrent_prefix_arg; | |
770970cb RS |
170 | minibuf_save_vector[minibuf_level].history_position = Vminibuffer_history_position; |
171 | minibuf_save_vector[minibuf_level].history_variable = Vminibuffer_history_variable; | |
f927c5ae JB |
172 | GCPRO2 (minibuf_save_vector[minibuf_level].help_form, |
173 | minibuf_save_vector[minibuf_level].current_prefix_arg); | |
174 | ||
175 | record_unwind_protect (Fset_window_configuration, | |
b2b2c677 JB |
176 | Fcurrent_window_configuration (Qnil)); |
177 | ||
ff11dfa1 JB |
178 | /* If the minibuffer window is on a different frame, save that |
179 | frame's configuration too. */ | |
5061d9c3 RS |
180 | #ifdef MULTI_FRAME |
181 | XSET (mini_frame, Lisp_Frame, WINDOW_FRAME (XWINDOW (minibuf_window))); | |
ff11dfa1 | 182 | if (XFRAME (mini_frame) != selected_frame) |
5061d9c3 RS |
183 | record_unwind_protect (Fset_window_configuration, |
184 | Fcurrent_window_configuration (mini_frame)); | |
5563e8e8 KH |
185 | |
186 | /* If the minibuffer is on an iconified or invisible frame, | |
187 | make it visible now. */ | |
188 | Fmake_frame_visible (mini_frame); | |
189 | ||
6a9ee000 RS |
190 | if (minibuffer_auto_raise) |
191 | Fraise_frame (mini_frame); | |
5061d9c3 | 192 | #endif |
f927c5ae JB |
193 | |
194 | val = current_buffer->directory; | |
195 | Fset_buffer (get_minibuffer (minibuf_level)); | |
64a3a3c0 JB |
196 | |
197 | /* The current buffer's default directory is usually the right thing | |
198 | for our minibuffer here. However, if you're typing a command at | |
199 | a minibuffer-only frame when minibuf_level is zero, then buf IS | |
200 | the current_buffer, so reset_buffer leaves buf's default | |
201 | directory unchanged. This is a bummer when you've just started | |
202 | up Emacs and buf's default directory is Qnil. Here's a hack; can | |
203 | you think of something better to do? Find another buffer with a | |
204 | better directory, and use that one instead. */ | |
205 | if (XTYPE (val) == Lisp_String) | |
206 | current_buffer->directory = val; | |
207 | else | |
208 | { | |
209 | Lisp_Object buf_list; | |
210 | ||
211 | for (buf_list = Vbuffer_alist; | |
212 | CONSP (buf_list); | |
213 | buf_list = XCONS (buf_list)->cdr) | |
214 | { | |
1e62748e | 215 | Lisp_Object other_buf; |
64a3a3c0 | 216 | |
1e62748e | 217 | other_buf = XCONS (XCONS (buf_list)->car)->cdr; |
64a3a3c0 JB |
218 | if (XTYPE (XBUFFER (other_buf)->directory) == Lisp_String) |
219 | { | |
220 | current_buffer->directory = XBUFFER (other_buf)->directory; | |
221 | break; | |
222 | } | |
223 | } | |
224 | } | |
225 | ||
33b1baf6 | 226 | #ifdef MULTI_FRAME |
0abbff13 KH |
227 | if (XFRAME (mini_frame) != selected_frame) |
228 | Fredirect_frame_focus (Fselected_frame (), mini_frame); | |
33b1baf6 | 229 | #endif |
f927c5ae JB |
230 | Fmake_local_variable (Qprint_escape_newlines); |
231 | print_escape_newlines = 1; | |
232 | ||
43bad991 | 233 | record_unwind_protect (read_minibuf_unwind, Qnil); |
43bad991 | 234 | |
f927c5ae JB |
235 | Vminibuf_scroll_window = selected_window; |
236 | Fset_window_buffer (minibuf_window, Fcurrent_buffer ()); | |
f927c5ae JB |
237 | Fselect_window (minibuf_window); |
238 | XFASTINT (XWINDOW (minibuf_window)->hscroll) = 0; | |
239 | ||
240 | Ferase_buffer (); | |
241 | minibuf_level++; | |
f927c5ae | 242 | |
56a98455 | 243 | if (!NILP (initial)) |
f927c5ae JB |
244 | { |
245 | Finsert (1, &initial); | |
56a98455 | 246 | if (!NILP (backup_n) && XTYPE (backup_n) == Lisp_Int) |
f927c5ae JB |
247 | Fforward_char (backup_n); |
248 | } | |
249 | ||
250 | minibuf_prompt = (char *) alloca (XSTRING (prompt)->size + 1); | |
251 | bcopy (XSTRING (prompt)->data, minibuf_prompt, XSTRING (prompt)->size + 1); | |
252 | echo_area_glyphs = 0; | |
253 | ||
254 | Vhelp_form = Vminibuffer_help_form; | |
255 | current_buffer->keymap = map; | |
770970cb RS |
256 | Vminibuffer_history_position = histpos; |
257 | Vminibuffer_history_variable = histvar; | |
f927c5ae | 258 | |
5c781212 RS |
259 | /* Run our hook, but not if it is empty. |
260 | (run-hooks would do nothing if it is empty, | |
261 | but it's important to save time here in the usual case. */ | |
92d3b06e RS |
262 | if (!NILP (Vminibuffer_setup_hook) && !EQ (Vminibuffer_setup_hook, Qunbound) |
263 | && !NILP (Vrun_hooks)) | |
5c781212 RS |
264 | call1 (Vrun_hooks, Qminibuffer_setup_hook); |
265 | ||
f927c5ae JB |
266 | /* ??? MCC did redraw_screen here if switching screens. */ |
267 | recursive_edit_1 (); | |
268 | ||
269 | /* If cursor is on the minibuffer line, | |
270 | show the user we have exited by putting it in column 0. */ | |
ff11dfa1 | 271 | if ((FRAME_CURSOR_Y (selected_frame) |
f927c5ae JB |
272 | >= XFASTINT (XWINDOW (minibuf_window)->top)) |
273 | && !noninteractive) | |
274 | { | |
ff11dfa1 JB |
275 | FRAME_CURSOR_X (selected_frame) = 0; |
276 | update_frame (selected_frame, 1, 1); | |
f927c5ae JB |
277 | } |
278 | ||
279 | /* Make minibuffer contents into a string */ | |
ffd56f97 | 280 | val = make_buffer_string (1, Z); |
f927c5ae | 281 | bcopy (GAP_END_ADDR, XSTRING (val)->data + GPT - BEG, Z - GPT); |
770970cb | 282 | |
b278606c BF |
283 | /* VAL is the string of minibuffer text. */ |
284 | last_minibuf_string = val; | |
285 | ||
770970cb RS |
286 | /* Add the value to the appropriate history list. */ |
287 | if (XTYPE (Vminibuffer_history_variable) == Lisp_Symbol | |
b278606c BF |
288 | && ! EQ (XSYMBOL (Vminibuffer_history_variable)->value, Qunbound)) |
289 | { | |
290 | /* If the caller wanted to save the value read on a history list, | |
60b73b25 RS |
291 | then do so if the value is not already the front of the list. */ |
292 | Lisp_Object histval; | |
293 | histval = Fsymbol_value (Vminibuffer_history_variable); | |
b278606c BF |
294 | |
295 | /* The value of the history variable must be a cons or nil. Other | |
60b73b25 | 296 | values are unacceptable. We silently ignore these values. */ |
b278606c | 297 | if (NILP (histval) |
60b73b25 RS |
298 | || (CONSP (histval) |
299 | && NILP (Fequal (last_minibuf_string, Fcar (histval))))) | |
300 | Fset (Vminibuffer_history_variable, | |
301 | Fcons (last_minibuf_string, histval)); | |
b278606c | 302 | } |
770970cb | 303 | |
60b73b25 RS |
304 | /* If Lisp form desired instead of string, parse it. */ |
305 | if (expflag) | |
8acd16de KH |
306 | { |
307 | Lisp_Object expr_and_pos; | |
308 | unsigned char *p; | |
309 | ||
310 | expr_and_pos = Fread_from_string (val, Qnil, Qnil); | |
311 | /* Ignore trailing whitespace; any other trailing junk is an error. */ | |
312 | for (p = XSTRING (val)->data + XINT (Fcdr (expr_and_pos)); *p; p++) | |
313 | if (*p != ' ' && *p != '\t' && *p != '\n') | |
314 | error ("Trailing garbage following expression"); | |
315 | val = Fcar (expr_and_pos); | |
316 | } | |
60b73b25 | 317 | |
f927c5ae | 318 | UNGCPRO; |
2cb6da5c RS |
319 | return unbind_to (count, val); /* The appropriate frame will get selected |
320 | in set-window-configuration. */ | |
f927c5ae JB |
321 | } |
322 | ||
323 | /* Return a buffer to be used as the minibuffer at depth `depth'. | |
324 | depth = 0 is the lowest allowed argument, and that is the value | |
325 | used for nonrecursive minibuffer invocations */ | |
326 | ||
327 | Lisp_Object | |
328 | get_minibuffer (depth) | |
329 | int depth; | |
330 | { | |
331 | Lisp_Object tail, num, buf; | |
9f6c23bc | 332 | char name[24]; |
f927c5ae JB |
333 | extern Lisp_Object nconc2 (); |
334 | ||
335 | XFASTINT (num) = depth; | |
336 | tail = Fnthcdr (num, Vminibuffer_list); | |
56a98455 | 337 | if (NILP (tail)) |
f927c5ae JB |
338 | { |
339 | tail = Fcons (Qnil, Qnil); | |
340 | Vminibuffer_list = nconc2 (Vminibuffer_list, tail); | |
341 | } | |
342 | buf = Fcar (tail); | |
56a98455 | 343 | if (NILP (buf) || NILP (XBUFFER (buf)->name)) |
f927c5ae JB |
344 | { |
345 | sprintf (name, " *Minibuf-%d*", depth); | |
346 | buf = Fget_buffer_create (build_string (name)); | |
5d6533f1 JB |
347 | |
348 | /* Although the buffer's name starts with a space, undo should be | |
349 | enabled in it. */ | |
350 | Fbuffer_enable_undo (buf); | |
351 | ||
f927c5ae JB |
352 | XCONS (tail)->car = buf; |
353 | } | |
354 | else | |
355 | reset_buffer (XBUFFER (buf)); | |
64a3a3c0 | 356 | |
f927c5ae JB |
357 | return buf; |
358 | } | |
359 | ||
360 | /* This function is called on exiting minibuffer, whether normally or not, | |
361 | and it restores the current window, buffer, etc. */ | |
362 | ||
363 | void | |
43bad991 JB |
364 | read_minibuf_unwind (data) |
365 | Lisp_Object data; | |
f927c5ae JB |
366 | { |
367 | /* Erase the minibuffer we were using at this level. */ | |
368 | Fset_buffer (XWINDOW (minibuf_window)->buffer); | |
369 | ||
370 | /* Prevent error in erase-buffer. */ | |
371 | current_buffer->read_only = Qnil; | |
372 | Ferase_buffer (); | |
373 | ||
374 | /* If this was a recursive minibuffer, | |
375 | tie the minibuffer window back to the outer level minibuffer buffer */ | |
376 | minibuf_level--; | |
377 | /* Make sure minibuffer window is erased, not ignored */ | |
378 | windows_or_buffers_changed++; | |
379 | XFASTINT (XWINDOW (minibuf_window)->last_modified) = 0; | |
380 | ||
381 | /* Restore prompt from outer minibuffer */ | |
382 | minibuf_prompt = minibuf_save_vector[minibuf_level].prompt; | |
383 | minibuf_prompt_width = minibuf_save_vector[minibuf_level].prompt_width; | |
384 | Vhelp_form = minibuf_save_vector[minibuf_level].help_form; | |
385 | Vcurrent_prefix_arg = minibuf_save_vector[minibuf_level].current_prefix_arg; | |
770970cb RS |
386 | Vminibuffer_history_position |
387 | = minibuf_save_vector[minibuf_level].history_position; | |
388 | Vminibuffer_history_variable | |
389 | = minibuf_save_vector[minibuf_level].history_variable; | |
f927c5ae JB |
390 | } |
391 | \f | |
b9d721de JB |
392 | |
393 | /* This comment supplies the doc string for read-from-minibuffer, | |
394 | for make-docfile to see. We cannot put this in the real DEFUN | |
395 | due to limits in the Unix cpp. | |
396 | ||
f927c5ae JB |
397 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 5, 0, |
398 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ | |
399 | If optional second arg INITIAL-CONTENTS is non-nil, it is a string\n\ | |
400 | to be inserted into the minibuffer before reading input.\n\ | |
770970cb RS |
401 | If INITIAL-CONTENTS is (STRING . POSITION), the initial input\n\ |
402 | is STRING, but point is placed POSITION characters into the string.\n\ | |
f927c5ae JB |
403 | Third arg KEYMAP is a keymap to use whilst reading;\n\ |
404 | if omitted or nil, the default is `minibuffer-local-map'.\n\ | |
405 | If fourth arg READ is non-nil, then interpret the result as a lisp object\n\ | |
406 | and return that object:\n\ | |
407 | in other words, do `(car (read-from-string INPUT-STRING))'\n\ | |
770970cb RS |
408 | Fifth arg HIST, if non-nil, specifies a history list\n\ |
409 | and optionally the initial position in the list.\n\ | |
410 | It can be a symbol, which is the history list variable to use,\n\ | |
411 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
412 | In that case, HISTVAR is the history list variable to use,\n\ | |
413 | and HISTPOS is the initial position (the position in the list\n\ | |
414 | which INITIAL-CONTENTS corresponds to).\n\ | |
b9d721de JB |
415 | Positions are counted starting from 1 at the beginning of the list." |
416 | */ | |
417 | ||
418 | DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 5, 0, | |
419 | 0 /* See immediately above */) | |
68e5a8a2 RS |
420 | (prompt, initial_contents, keymap, read, hist) |
421 | Lisp_Object prompt, initial_contents, keymap, read, hist; | |
f927c5ae JB |
422 | { |
423 | int pos = 0; | |
770970cb RS |
424 | Lisp_Object histvar, histpos, position; |
425 | position = Qnil; | |
f927c5ae JB |
426 | |
427 | CHECK_STRING (prompt, 0); | |
68e5a8a2 | 428 | if (!NILP (initial_contents)) |
f927c5ae | 429 | { |
68e5a8a2 | 430 | if (XTYPE (initial_contents) == Lisp_Cons) |
770970cb | 431 | { |
68e5a8a2 RS |
432 | position = Fcdr (initial_contents); |
433 | initial_contents = Fcar (initial_contents); | |
770970cb | 434 | } |
68e5a8a2 | 435 | CHECK_STRING (initial_contents, 1); |
56a98455 | 436 | if (!NILP (position)) |
f927c5ae JB |
437 | { |
438 | CHECK_NUMBER (position, 0); | |
439 | /* Convert to distance from end of input. */ | |
68e5a8a2 | 440 | pos = XINT (position) - 1 - XSTRING (initial_contents)->size; |
f927c5ae JB |
441 | } |
442 | } | |
443 | ||
56a98455 | 444 | if (NILP (keymap)) |
f927c5ae JB |
445 | keymap = Vminibuffer_local_map; |
446 | else | |
447 | keymap = get_keymap (keymap,2); | |
770970cb RS |
448 | |
449 | if (XTYPE (hist) == Lisp_Symbol) | |
450 | { | |
451 | histvar = hist; | |
452 | histpos = Qnil; | |
453 | } | |
454 | else | |
455 | { | |
456 | histvar = Fcar_safe (hist); | |
457 | histpos = Fcdr_safe (hist); | |
458 | } | |
459 | if (NILP (histvar)) | |
460 | histvar = Qminibuffer_history; | |
461 | if (NILP (histpos)) | |
462 | XFASTINT (histpos) = 0; | |
463 | ||
68e5a8a2 | 464 | return read_minibuf (keymap, initial_contents, prompt, |
85b5fe07 | 465 | make_number (pos), !NILP (read), histvar, histpos); |
f927c5ae JB |
466 | } |
467 | ||
468 | DEFUN ("read-minibuffer", Fread_minibuffer, Sread_minibuffer, 1, 2, 0, | |
469 | "Return a Lisp object read using the minibuffer.\n\ | |
470 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
471 | is a string to insert in the minibuffer before reading.") | |
472 | (prompt, initial_contents) | |
473 | Lisp_Object prompt, initial_contents; | |
474 | { | |
475 | CHECK_STRING (prompt, 0); | |
56a98455 | 476 | if (!NILP (initial_contents)) |
a1b4b084 | 477 | CHECK_STRING (initial_contents, 1); |
770970cb RS |
478 | return read_minibuf (Vminibuffer_local_map, initial_contents, |
479 | prompt, Qnil, 1, Qminibuffer_history, make_number (0)); | |
f927c5ae JB |
480 | } |
481 | ||
482 | DEFUN ("eval-minibuffer", Feval_minibuffer, Seval_minibuffer, 1, 2, 0, | |
483 | "Return value of Lisp expression read using the minibuffer.\n\ | |
484 | Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\ | |
485 | is a string to insert in the minibuffer before reading.") | |
486 | (prompt, initial_contents) | |
487 | Lisp_Object prompt, initial_contents; | |
488 | { | |
489 | return Feval (Fread_minibuffer (prompt, initial_contents)); | |
490 | } | |
491 | ||
492 | /* Functions that use the minibuffer to read various things. */ | |
493 | ||
494 | DEFUN ("read-string", Fread_string, Sread_string, 1, 2, 0, | |
495 | "Read a string from the minibuffer, prompting with string PROMPT.\n\ | |
496 | If non-nil second arg INITIAL-INPUT is a string to insert before reading.") | |
497 | (prompt, initial_input) | |
498 | Lisp_Object prompt, initial_input; | |
499 | { | |
500 | return Fread_from_minibuffer (prompt, initial_input, Qnil, Qnil, Qnil); | |
501 | } | |
502 | ||
b278606c | 503 | DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 2, 0, |
f927c5ae JB |
504 | "Args PROMPT and INIT, strings. Read a string from the terminal, not allowing blanks.\n\ |
505 | Prompt with PROMPT, and provide INIT as an initial value of the input string.") | |
506 | (prompt, init) | |
507 | Lisp_Object prompt, init; | |
508 | { | |
509 | CHECK_STRING (prompt, 0); | |
56a98455 | 510 | if (! NILP (init)) |
f927c5ae JB |
511 | CHECK_STRING (init, 1); |
512 | ||
770970cb RS |
513 | return read_minibuf (Vminibuffer_local_ns_map, init, prompt, Qnil, 0, |
514 | Qminibuffer_history, make_number (0)); | |
f927c5ae JB |
515 | } |
516 | ||
517 | DEFUN ("read-command", Fread_command, Sread_command, 1, 1, 0, | |
518 | "One arg PROMPT, a string. Read the name of a command and return as a symbol.\n\ | |
519 | Prompts with PROMPT.") | |
520 | (prompt) | |
521 | Lisp_Object prompt; | |
522 | { | |
523 | return Fintern (Fcompleting_read (prompt, Vobarray, Qcommandp, Qt, Qnil, Qnil), | |
524 | Qnil); | |
525 | } | |
526 | ||
527 | #ifdef NOTDEF | |
528 | DEFUN ("read-function", Fread_function, Sread_function, 1, 1, 0, | |
529 | "One arg PROMPT, a string. Read the name of a function and return as a symbol.\n\ | |
530 | Prompts with PROMPT.") | |
531 | (prompt) | |
532 | Lisp_Object prompt; | |
533 | { | |
534 | return Fintern (Fcompleting_read (prompt, Vobarray, Qfboundp, Qt, Qnil, Qnil), | |
535 | Qnil); | |
536 | } | |
537 | #endif /* NOTDEF */ | |
538 | ||
539 | DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 1, 0, | |
540 | "One arg PROMPT, a string. Read the name of a user variable and return\n\ | |
541 | it as a symbol. Prompts with PROMPT.\n\ | |
542 | A user variable is one whose documentation starts with a `*' character.") | |
543 | (prompt) | |
544 | Lisp_Object prompt; | |
545 | { | |
546 | return Fintern (Fcompleting_read (prompt, Vobarray, | |
547 | Quser_variable_p, Qt, Qnil, Qnil), | |
548 | Qnil); | |
549 | } | |
550 | ||
551 | DEFUN ("read-buffer", Fread_buffer, Sread_buffer, 1, 3, 0, | |
552 | "One arg PROMPT, a string. Read the name of a buffer and return as a string.\n\ | |
553 | Prompts with PROMPT.\n\ | |
554 | Optional second arg is value to return if user enters an empty line.\n\ | |
555 | If optional third arg REQUIRE-MATCH is non-nil, only existing buffer names are allowed.") | |
556 | (prompt, def, require_match) | |
557 | Lisp_Object prompt, def, require_match; | |
558 | { | |
559 | Lisp_Object tem; | |
560 | Lisp_Object args[3]; | |
561 | struct gcpro gcpro1; | |
562 | ||
563 | if (XTYPE (def) == Lisp_Buffer) | |
564 | def = XBUFFER (def)->name; | |
56a98455 | 565 | if (!NILP (def)) |
f927c5ae JB |
566 | { |
567 | args[0] = build_string ("%s(default %s) "); | |
568 | args[1] = prompt; | |
569 | args[2] = def; | |
570 | prompt = Fformat (3, args); | |
571 | } | |
572 | GCPRO1 (def); | |
573 | tem = Fcompleting_read (prompt, Vbuffer_alist, Qnil, require_match, Qnil, Qnil); | |
574 | UNGCPRO; | |
575 | if (XSTRING (tem)->size) | |
576 | return tem; | |
577 | return def; | |
578 | } | |
579 | \f | |
580 | DEFUN ("try-completion", Ftry_completion, Stry_completion, 2, 3, 0, | |
581 | "Return common substring of all completions of STRING in ALIST.\n\ | |
582 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
583 | All that match are compared together; the longest initial sequence\n\ | |
584 | common to all matches is returned as a string.\n\ | |
585 | If there is no match at all, nil is returned.\n\ | |
586 | For an exact match, t is returned.\n\ | |
587 | \n\ | |
588 | ALIST can be an obarray instead of an alist.\n\ | |
589 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
590 | \n\ | |
591 | ALIST can also be a function to do the completion itself.\n\ | |
592 | It receives three arguments: the values STRING, PREDICATE and nil.\n\ | |
593 | Whatever it returns becomes the value of `try-completion'.\n\ | |
594 | \n\ | |
595 | If optional third argument PREDICATE is non-nil,\n\ | |
596 | it is used to test each possible match.\n\ | |
597 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
598 | The argument given to PREDICATE is the alist element or the symbol from the obarray.") | |
599 | (string, alist, pred) | |
600 | Lisp_Object string, alist, pred; | |
601 | { | |
602 | Lisp_Object bestmatch, tail, elt, eltstring; | |
603 | int bestmatchsize; | |
604 | int compare, matchsize; | |
56a98455 | 605 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
606 | int index, obsize; |
607 | int matchcount = 0; | |
608 | Lisp_Object bucket, zero, end, tem; | |
609 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
610 | ||
611 | CHECK_STRING (string, 0); | |
612 | if (!list && XTYPE (alist) != Lisp_Vector) | |
613 | return call3 (alist, string, pred, Qnil); | |
614 | ||
615 | bestmatch = Qnil; | |
616 | ||
617 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
618 | tail = alist; | |
619 | if (! list) | |
620 | { | |
621 | index = 0; | |
622 | obsize = XVECTOR (alist)->size; | |
623 | bucket = XVECTOR (alist)->contents[index]; | |
624 | } | |
625 | ||
626 | while (1) | |
627 | { | |
628 | /* Get the next element of the alist or obarray. */ | |
629 | /* Exit the loop if the elements are all used up. */ | |
630 | /* elt gets the alist element or symbol. | |
631 | eltstring gets the name to check as a completion. */ | |
632 | ||
633 | if (list) | |
634 | { | |
56a98455 | 635 | if (NILP (tail)) |
f927c5ae JB |
636 | break; |
637 | elt = Fcar (tail); | |
638 | eltstring = Fcar (elt); | |
639 | tail = Fcdr (tail); | |
640 | } | |
641 | else | |
642 | { | |
643 | if (XFASTINT (bucket) != 0) | |
644 | { | |
645 | elt = bucket; | |
646 | eltstring = Fsymbol_name (elt); | |
647 | if (XSYMBOL (bucket)->next) | |
648 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
649 | else | |
650 | XFASTINT (bucket) = 0; | |
651 | } | |
652 | else if (++index >= obsize) | |
653 | break; | |
654 | else | |
655 | { | |
656 | bucket = XVECTOR (alist)->contents[index]; | |
657 | continue; | |
658 | } | |
659 | } | |
660 | ||
661 | /* Is this element a possible completion? */ | |
662 | ||
42006772 RS |
663 | if (XTYPE (eltstring) == Lisp_String |
664 | && XSTRING (string)->size <= XSTRING (eltstring)->size | |
665 | && 0 > scmp (XSTRING (eltstring)->data, XSTRING (string)->data, | |
666 | XSTRING (string)->size)) | |
f927c5ae JB |
667 | { |
668 | /* Yes. */ | |
42006772 RS |
669 | Lisp_Object regexps; |
670 | Lisp_Object zero; | |
671 | XFASTINT (zero) = 0; | |
672 | ||
673 | /* Ignore this element if it fails to match all the regexps. */ | |
674 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
675 | regexps = XCONS (regexps)->cdr) | |
676 | { | |
677 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
678 | if (NILP (tem)) | |
679 | break; | |
680 | } | |
681 | if (CONSP (regexps)) | |
682 | continue; | |
683 | ||
f927c5ae JB |
684 | /* Ignore this element if there is a predicate |
685 | and the predicate doesn't like it. */ | |
686 | ||
56a98455 | 687 | if (!NILP (pred)) |
f927c5ae JB |
688 | { |
689 | if (EQ (pred, Qcommandp)) | |
690 | tem = Fcommandp (elt); | |
691 | else | |
692 | { | |
693 | GCPRO4 (tail, string, eltstring, bestmatch); | |
694 | tem = call1 (pred, elt); | |
695 | UNGCPRO; | |
696 | } | |
56a98455 | 697 | if (NILP (tem)) continue; |
f927c5ae JB |
698 | } |
699 | ||
700 | /* Update computation of how much all possible completions match */ | |
701 | ||
702 | matchcount++; | |
56a98455 | 703 | if (NILP (bestmatch)) |
f927c5ae JB |
704 | bestmatch = eltstring, bestmatchsize = XSTRING (eltstring)->size; |
705 | else | |
706 | { | |
707 | compare = min (bestmatchsize, XSTRING (eltstring)->size); | |
708 | matchsize = scmp (XSTRING (bestmatch)->data, | |
709 | XSTRING (eltstring)->data, | |
710 | compare); | |
52b14ac0 JB |
711 | if (matchsize < 0) |
712 | matchsize = compare; | |
713 | if (completion_ignore_case) | |
714 | { | |
715 | /* If this is an exact match except for case, | |
716 | use it as the best match rather than one that is not an | |
717 | exact match. This way, we get the case pattern | |
718 | of the actual match. */ | |
719 | if ((matchsize == XSTRING (eltstring)->size | |
720 | && matchsize < XSTRING (bestmatch)->size) | |
721 | || | |
722 | /* If there is more than one exact match ignoring case, | |
723 | and one of them is exact including case, | |
724 | prefer that one. */ | |
725 | /* If there is no exact match ignoring case, | |
726 | prefer a match that does not change the case | |
727 | of the input. */ | |
728 | ((matchsize == XSTRING (eltstring)->size) | |
729 | == | |
730 | (matchsize == XSTRING (bestmatch)->size) | |
731 | && !bcmp (XSTRING (eltstring)->data, | |
732 | XSTRING (string)->data, XSTRING (string)->size) | |
733 | && bcmp (XSTRING (bestmatch)->data, | |
734 | XSTRING (string)->data, XSTRING (string)->size))) | |
735 | bestmatch = eltstring; | |
736 | } | |
737 | bestmatchsize = matchsize; | |
f927c5ae JB |
738 | } |
739 | } | |
740 | } | |
741 | ||
56a98455 | 742 | if (NILP (bestmatch)) |
f927c5ae | 743 | return Qnil; /* No completions found */ |
52b14ac0 JB |
744 | /* If we are ignoring case, and there is no exact match, |
745 | and no additional text was supplied, | |
746 | don't change the case of what the user typed. */ | |
747 | if (completion_ignore_case && bestmatchsize == XSTRING (string)->size | |
748 | && XSTRING (bestmatch)->size > bestmatchsize) | |
749 | return string; | |
750 | ||
751 | /* Return t if the supplied string is an exact match (counting case); | |
752 | it does not require any change to be made. */ | |
753 | if (matchcount == 1 && bestmatchsize == XSTRING (string)->size | |
754 | && !bcmp (XSTRING (bestmatch)->data, XSTRING (string)->data, | |
755 | bestmatchsize)) | |
f927c5ae JB |
756 | return Qt; |
757 | ||
758 | XFASTINT (zero) = 0; /* Else extract the part in which */ | |
759 | XFASTINT (end) = bestmatchsize; /* all completions agree */ | |
760 | return Fsubstring (bestmatch, zero, end); | |
761 | } | |
762 | ||
763 | /* Compare exactly LEN chars of strings at S1 and S2, | |
764 | ignoring case if appropriate. | |
765 | Return -1 if strings match, | |
766 | else number of chars that match at the beginning. */ | |
767 | ||
768 | scmp (s1, s2, len) | |
769 | register char *s1, *s2; | |
770 | int len; | |
771 | { | |
772 | register int l = len; | |
773 | ||
774 | if (completion_ignore_case) | |
775 | { | |
776 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) | |
777 | l--; | |
778 | } | |
779 | else | |
780 | { | |
781 | while (l && *s1++ == *s2++) | |
782 | l--; | |
783 | } | |
784 | if (l == 0) | |
785 | return -1; | |
786 | else return len - l; | |
787 | } | |
788 | \f | |
789 | DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 3, 0, | |
790 | "Search for partial matches to STRING in ALIST.\n\ | |
791 | Each car of each element of ALIST is tested to see if it begins with STRING.\n\ | |
792 | The value is a list of all the strings from ALIST that match.\n\ | |
793 | ALIST can be an obarray instead of an alist.\n\ | |
794 | Then the print names of all symbols in the obarray are the possible matches.\n\ | |
795 | \n\ | |
796 | ALIST can also be a function to do the completion itself.\n\ | |
797 | It receives three arguments: the values STRING, PREDICATE and t.\n\ | |
798 | Whatever it returns becomes the value of `all-completion'.\n\ | |
799 | \n\ | |
800 | If optional third argument PREDICATE is non-nil,\n\ | |
801 | it is used to test each possible match.\n\ | |
802 | The match is a candidate only if PREDICATE returns non-nil.\n\ | |
803 | The argument given to PREDICATE is the alist element or the symbol from the obarray.") | |
804 | (string, alist, pred) | |
805 | Lisp_Object string, alist, pred; | |
806 | { | |
807 | Lisp_Object tail, elt, eltstring; | |
808 | Lisp_Object allmatches; | |
56a98455 | 809 | int list = CONSP (alist) || NILP (alist); |
f927c5ae JB |
810 | int index, obsize; |
811 | Lisp_Object bucket, tem; | |
812 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
813 | ||
814 | CHECK_STRING (string, 0); | |
815 | if (!list && XTYPE (alist) != Lisp_Vector) | |
816 | { | |
817 | return call3 (alist, string, pred, Qt); | |
818 | } | |
819 | allmatches = Qnil; | |
820 | ||
821 | /* If ALIST is not a list, set TAIL just for gc pro. */ | |
822 | tail = alist; | |
823 | if (! list) | |
824 | { | |
825 | index = 0; | |
826 | obsize = XVECTOR (alist)->size; | |
827 | bucket = XVECTOR (alist)->contents[index]; | |
828 | } | |
829 | ||
830 | while (1) | |
831 | { | |
832 | /* Get the next element of the alist or obarray. */ | |
833 | /* Exit the loop if the elements are all used up. */ | |
834 | /* elt gets the alist element or symbol. | |
835 | eltstring gets the name to check as a completion. */ | |
836 | ||
837 | if (list) | |
838 | { | |
56a98455 | 839 | if (NILP (tail)) |
f927c5ae JB |
840 | break; |
841 | elt = Fcar (tail); | |
842 | eltstring = Fcar (elt); | |
843 | tail = Fcdr (tail); | |
844 | } | |
845 | else | |
846 | { | |
847 | if (XFASTINT (bucket) != 0) | |
848 | { | |
849 | elt = bucket; | |
850 | eltstring = Fsymbol_name (elt); | |
851 | if (XSYMBOL (bucket)->next) | |
852 | XSETSYMBOL (bucket, XSYMBOL (bucket)->next); | |
853 | else | |
854 | XFASTINT (bucket) = 0; | |
855 | } | |
856 | else if (++index >= obsize) | |
857 | break; | |
858 | else | |
859 | { | |
860 | bucket = XVECTOR (alist)->contents[index]; | |
861 | continue; | |
862 | } | |
863 | } | |
864 | ||
865 | /* Is this element a possible completion? */ | |
866 | ||
2cbaf886 RS |
867 | if (XTYPE (eltstring) == Lisp_String |
868 | && XSTRING (string)->size <= XSTRING (eltstring)->size | |
869 | /* Reject alternatives that start with space | |
870 | unless the input starts with space. */ | |
871 | && ((XSTRING (string)->size > 0 && XSTRING (string)->data[0] == ' ') | |
872 | || XSTRING (eltstring)->data[0] != ' ') | |
873 | && 0 > scmp (XSTRING (eltstring)->data, XSTRING (string)->data, | |
874 | XSTRING (string)->size)) | |
f927c5ae JB |
875 | { |
876 | /* Yes. */ | |
42006772 RS |
877 | Lisp_Object regexps; |
878 | Lisp_Object zero; | |
879 | XFASTINT (zero) = 0; | |
880 | ||
881 | /* Ignore this element if it fails to match all the regexps. */ | |
882 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
883 | regexps = XCONS (regexps)->cdr) | |
884 | { | |
885 | tem = Fstring_match (XCONS (regexps)->car, eltstring, zero); | |
886 | if (NILP (tem)) | |
887 | break; | |
888 | } | |
889 | if (CONSP (regexps)) | |
890 | continue; | |
891 | ||
f927c5ae JB |
892 | /* Ignore this element if there is a predicate |
893 | and the predicate doesn't like it. */ | |
894 | ||
56a98455 | 895 | if (!NILP (pred)) |
f927c5ae JB |
896 | { |
897 | if (EQ (pred, Qcommandp)) | |
898 | tem = Fcommandp (elt); | |
899 | else | |
900 | { | |
901 | GCPRO4 (tail, eltstring, allmatches, string); | |
902 | tem = call1 (pred, elt); | |
903 | UNGCPRO; | |
904 | } | |
56a98455 | 905 | if (NILP (tem)) continue; |
f927c5ae JB |
906 | } |
907 | /* Ok => put it on the list. */ | |
908 | allmatches = Fcons (eltstring, allmatches); | |
909 | } | |
910 | } | |
911 | ||
912 | return Fnreverse (allmatches); | |
913 | } | |
914 | \f | |
915 | Lisp_Object Vminibuffer_completion_table, Qminibuffer_completion_table; | |
916 | Lisp_Object Vminibuffer_completion_predicate, Qminibuffer_completion_predicate; | |
917 | Lisp_Object Vminibuffer_completion_confirm, Qminibuffer_completion_confirm; | |
918 | ||
b9d721de JB |
919 | /* This comment supplies the doc string for completing-read, |
920 | for make-docfile to see. We cannot put this in the real DEFUN | |
921 | due to limits in the Unix cpp. | |
922 | ||
f927c5ae JB |
923 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 6, 0, |
924 | "Read a string in the minibuffer, with completion.\n\ | |
770970cb | 925 | Args: PROMPT, TABLE, PREDICATE, REQUIRE-MATCH, INITIAL-INPUT, HIST.\n\ |
f927c5ae JB |
926 | PROMPT is a string to prompt with; normally it ends in a colon and a space.\n\ |
927 | TABLE is an alist whose elements' cars are strings, or an obarray.\n\ | |
928 | PREDICATE limits completion to a subset of TABLE.\n\ | |
929 | See `try-completion' for more details on completion, TABLE, and PREDICATE.\n\ | |
930 | If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless\n\ | |
931 | the input is (or completes to) an element of TABLE.\n\ | |
932 | If it is also not t, Return does not exit if it does non-null completion.\n\ | |
933 | If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.\n\ | |
770970cb RS |
934 | If it is (STRING . POSITION), the initial input\n\ |
935 | is STRING, but point is placed POSITION characters into the string.\n\ | |
936 | HIST, if non-nil, specifies a history list\n\ | |
937 | and optionally the initial position in the list.\n\ | |
938 | It can be a symbol, which is the history list variable to use,\n\ | |
939 | or it can be a cons cell (HISTVAR . HISTPOS).\n\ | |
940 | In that case, HISTVAR is the history list variable to use,\n\ | |
941 | and HISTPOS is the initial position (the position in the list\n\ | |
942 | which INITIAL-CONTENTS corresponds to).\n\ | |
943 | Positions are counted starting from 1 at the beginning of the list.\n\ | |
944 | Completion ignores case if the ambient value of\n\ | |
b9d721de JB |
945 | `completion-ignore-case' is non-nil." |
946 | */ | |
947 | DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 6, 0, | |
948 | 0 /* See immediately above */) | |
770970cb RS |
949 | (prompt, table, pred, require_match, init, hist) |
950 | Lisp_Object prompt, table, pred, require_match, init, hist; | |
f927c5ae | 951 | { |
770970cb RS |
952 | Lisp_Object val, histvar, histpos, position; |
953 | int pos = 0; | |
f927c5ae JB |
954 | int count = specpdl_ptr - specpdl; |
955 | specbind (Qminibuffer_completion_table, table); | |
956 | specbind (Qminibuffer_completion_predicate, pred); | |
957 | specbind (Qminibuffer_completion_confirm, | |
958 | EQ (require_match, Qt) ? Qnil : Qt); | |
959 | last_exact_completion = Qnil; | |
770970cb RS |
960 | |
961 | position = Qnil; | |
962 | if (!NILP (init)) | |
963 | { | |
964 | if (XTYPE (init) == Lisp_Cons) | |
965 | { | |
966 | position = Fcdr (init); | |
967 | init = Fcar (init); | |
968 | } | |
969 | CHECK_STRING (init, 0); | |
970 | if (!NILP (position)) | |
971 | { | |
972 | CHECK_NUMBER (position, 0); | |
973 | /* Convert to distance from end of input. */ | |
5dadd3a2 | 974 | pos = XINT (position) - XSTRING (init)->size; |
770970cb RS |
975 | } |
976 | } | |
977 | ||
978 | if (XTYPE (hist) == Lisp_Symbol) | |
979 | { | |
980 | histvar = hist; | |
981 | histpos = Qnil; | |
982 | } | |
983 | else | |
984 | { | |
985 | histvar = Fcar_safe (hist); | |
986 | histpos = Fcdr_safe (hist); | |
987 | } | |
988 | if (NILP (histvar)) | |
989 | histvar = Qminibuffer_history; | |
990 | if (NILP (histpos)) | |
991 | XFASTINT (histpos) = 0; | |
992 | ||
56a98455 | 993 | val = read_minibuf (NILP (require_match) |
f927c5ae JB |
994 | ? Vminibuffer_local_completion_map |
995 | : Vminibuffer_local_must_match_map, | |
85b5fe07 | 996 | init, prompt, make_number (pos), 0, |
770970cb | 997 | histvar, histpos); |
f927c5ae JB |
998 | return unbind_to (count, val); |
999 | } | |
1000 | \f | |
1001 | /* Temporarily display the string M at the end of the current | |
1002 | minibuffer contents. This is used to display things like | |
1003 | "[No Match]" when the user requests a completion for a prefix | |
1004 | that has no possible completions, and other quick, unobtrusive | |
1005 | messages. */ | |
1006 | ||
1007 | temp_echo_area_glyphs (m) | |
1008 | char *m; | |
1009 | { | |
f927c5ae JB |
1010 | int osize = ZV; |
1011 | Lisp_Object oinhibit; | |
1012 | oinhibit = Vinhibit_quit; | |
1013 | ||
896adf84 JB |
1014 | /* Clear out any old echo-area message to make way for our new thing. */ |
1015 | message (0); | |
f927c5ae JB |
1016 | |
1017 | SET_PT (osize); | |
1018 | insert_string (m); | |
1019 | SET_PT (osize); | |
1020 | Vinhibit_quit = Qt; | |
1021 | Fsit_for (make_number (2), Qnil, Qnil); | |
1022 | del_range (point, ZV); | |
56a98455 | 1023 | if (!NILP (Vquit_flag)) |
f927c5ae JB |
1024 | { |
1025 | Vquit_flag = Qnil; | |
a4e71d81 | 1026 | unread_command_events = Fcons (make_number (quit_char), Qnil); |
f927c5ae JB |
1027 | } |
1028 | Vinhibit_quit = oinhibit; | |
1029 | } | |
1030 | ||
1031 | Lisp_Object Fminibuffer_completion_help (); | |
52b14ac0 | 1032 | Lisp_Object assoc_for_completion (); |
f927c5ae JB |
1033 | |
1034 | /* returns: | |
1035 | * 0 no possible completion | |
1036 | * 1 was already an exact and unique completion | |
1037 | * 3 was already an exact completion | |
1038 | * 4 completed to an exact completion | |
1039 | * 5 some completion happened | |
1040 | * 6 no completion happened | |
1041 | */ | |
1042 | int | |
1043 | do_completion () | |
1044 | { | |
1045 | Lisp_Object completion, tem; | |
1046 | int completedp; | |
1047 | Lisp_Object last; | |
1048 | ||
1049 | completion = Ftry_completion (Fbuffer_string (), Vminibuffer_completion_table, | |
1050 | Vminibuffer_completion_predicate); | |
1051 | last = last_exact_completion; | |
1052 | last_exact_completion = Qnil; | |
1053 | ||
56a98455 | 1054 | if (NILP (completion)) |
f927c5ae JB |
1055 | { |
1056 | bitch_at_user (); | |
1057 | temp_echo_area_glyphs (" [No match]"); | |
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | if (EQ (completion, Qt)) /* exact and unique match */ | |
1062 | return 1; | |
1063 | ||
1064 | /* compiler bug */ | |
1065 | tem = Fstring_equal (completion, Fbuffer_string()); | |
56a98455 | 1066 | if (completedp = NILP (tem)) |
f927c5ae JB |
1067 | { |
1068 | Ferase_buffer (); /* Some completion happened */ | |
1069 | Finsert (1, &completion); | |
1070 | } | |
1071 | ||
1072 | /* It did find a match. Do we match some possibility exactly now? */ | |
1073 | if (CONSP (Vminibuffer_completion_table) | |
56a98455 | 1074 | || NILP (Vminibuffer_completion_table)) |
52b14ac0 JB |
1075 | tem = assoc_for_completion (Fbuffer_string (), |
1076 | Vminibuffer_completion_table); | |
f927c5ae JB |
1077 | else if (XTYPE (Vminibuffer_completion_table) == Lisp_Vector) |
1078 | { | |
1079 | /* the primitive used by Fintern_soft */ | |
1080 | extern Lisp_Object oblookup (); | |
1081 | ||
1082 | tem = Fbuffer_string (); | |
1083 | /* Bypass intern-soft as that loses for nil */ | |
1084 | tem = oblookup (Vminibuffer_completion_table, | |
1085 | XSTRING (tem)->data, XSTRING (tem)->size); | |
1086 | if (XTYPE (tem) != Lisp_Symbol) | |
1087 | tem = Qnil; | |
56a98455 | 1088 | else if (!NILP (Vminibuffer_completion_predicate)) |
f927c5ae JB |
1089 | tem = call1 (Vminibuffer_completion_predicate, tem); |
1090 | else | |
1091 | tem = Qt; | |
1092 | } | |
1093 | else | |
1094 | tem = call3 (Vminibuffer_completion_table, | |
1095 | Fbuffer_string (), | |
1096 | Vminibuffer_completion_predicate, | |
1097 | Qlambda); | |
1098 | ||
56a98455 | 1099 | if (NILP (tem)) |
f927c5ae JB |
1100 | { /* not an exact match */ |
1101 | if (completedp) | |
1102 | return 5; | |
1103 | else if (auto_help) | |
1104 | Fminibuffer_completion_help (); | |
1105 | else | |
1106 | temp_echo_area_glyphs (" [Next char not unique]"); | |
1107 | return 6; | |
1108 | } | |
1109 | else if (completedp) | |
1110 | return 4; | |
1111 | /* If the last exact completion and this one were the same, | |
1112 | it means we've already given a "Complete but not unique" | |
52b14ac0 | 1113 | message and the user's hit TAB again, so now we give him help. */ |
f927c5ae | 1114 | last_exact_completion = completion; |
56a98455 | 1115 | if (!NILP (last)) |
f927c5ae JB |
1116 | { |
1117 | tem = Fbuffer_string (); | |
56a98455 | 1118 | if (!NILP (Fequal (tem, last))) |
f927c5ae JB |
1119 | Fminibuffer_completion_help (); |
1120 | } | |
1121 | return 3; | |
f927c5ae JB |
1122 | } |
1123 | ||
52b14ac0 JB |
1124 | /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */ |
1125 | ||
1126 | Lisp_Object | |
1127 | assoc_for_completion (key, list) | |
1128 | register Lisp_Object key; | |
1129 | Lisp_Object list; | |
1130 | { | |
1131 | register Lisp_Object tail; | |
1132 | ||
1133 | if (completion_ignore_case) | |
1134 | key = Fupcase (key); | |
1135 | ||
56a98455 | 1136 | for (tail = list; !NILP (tail); tail = Fcdr (tail)) |
52b14ac0 JB |
1137 | { |
1138 | register Lisp_Object elt, tem, thiscar; | |
1139 | elt = Fcar (tail); | |
1140 | if (!CONSP (elt)) continue; | |
1141 | thiscar = Fcar (elt); | |
1142 | if (XTYPE (thiscar) != Lisp_String) | |
1143 | continue; | |
1144 | if (completion_ignore_case) | |
1145 | thiscar = Fupcase (thiscar); | |
1146 | tem = Fequal (thiscar, key); | |
56a98455 | 1147 | if (!NILP (tem)) return elt; |
52b14ac0 JB |
1148 | QUIT; |
1149 | } | |
1150 | return Qnil; | |
1151 | } | |
f927c5ae JB |
1152 | |
1153 | DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "", | |
6300d782 | 1154 | "Complete the minibuffer contents as far as possible.\n\ |
2cb6da5c RS |
1155 | Return nil if there is no valid completion, else t.\n\ |
1156 | If no characters can be completed, display a list of possible completions.\n\ | |
1157 | If you repeat this command after it displayed such a list,\n\ | |
1158 | scroll the window of possible completions.") | |
f927c5ae JB |
1159 | () |
1160 | { | |
2cb6da5c RS |
1161 | register int i; |
1162 | Lisp_Object window, tem; | |
1163 | ||
1164 | /* If the previous command was not this, then mark the completion | |
1165 | buffer obsolete. */ | |
1166 | if (! EQ (last_command, this_command)) | |
1167 | Vminibuf_scroll_window = Qnil; | |
1168 | ||
1169 | window = Vminibuf_scroll_window; | |
1170 | /* If there's a fresh completion window with a live buffer, | |
1171 | and this command is repeated, scroll that window. */ | |
1172 | if (! NILP (window) && ! NILP (XWINDOW (window)->buffer) | |
1173 | && !NILP (XBUFFER (XWINDOW (window)->buffer)->name)) | |
1174 | { | |
1175 | struct buffer *obuf = current_buffer; | |
1176 | ||
1177 | Fset_buffer (XWINDOW (window)->buffer); | |
1178 | tem = Fpos_visible_in_window_p (make_number (ZV), window); | |
1179 | if (! NILP (tem)) | |
1180 | /* If end is in view, scroll up to the beginning. */ | |
1181 | Fset_window_start (window, BEGV); | |
1182 | else | |
1183 | /* Else scroll down one screen. */ | |
1184 | Fscroll_other_window (Qnil); | |
1185 | ||
1186 | set_buffer_internal (obuf); | |
1187 | return Qnil; | |
1188 | } | |
1189 | ||
1190 | i = do_completion (); | |
f927c5ae JB |
1191 | switch (i) |
1192 | { | |
1193 | case 0: | |
1194 | return Qnil; | |
1195 | ||
1196 | case 1: | |
1197 | temp_echo_area_glyphs (" [Sole completion]"); | |
1198 | break; | |
1199 | ||
1200 | case 3: | |
1201 | temp_echo_area_glyphs (" [Complete, but not unique]"); | |
1202 | break; | |
1203 | } | |
1204 | ||
1205 | return Qt; | |
1206 | } | |
1207 | ||
1208 | DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit, | |
1209 | Sminibuffer_complete_and_exit, 0, 0, "", | |
1210 | "Complete the minibuffer contents, and maybe exit.\n\ | |
1211 | Exit if the name is valid with no completion needed.\n\ | |
1212 | If name was completed to a valid match,\n\ | |
1213 | a repetition of this command will exit.") | |
1214 | () | |
1215 | { | |
1216 | register int i; | |
1217 | ||
1218 | /* Allow user to specify null string */ | |
1219 | if (BEGV == ZV) | |
1220 | goto exit; | |
1221 | ||
1222 | i = do_completion (); | |
1223 | switch (i) | |
1224 | { | |
1225 | case 1: | |
1226 | case 3: | |
1227 | goto exit; | |
1228 | ||
1229 | case 4: | |
56a98455 | 1230 | if (!NILP (Vminibuffer_completion_confirm)) |
f927c5ae JB |
1231 | { |
1232 | temp_echo_area_glyphs (" [Confirm]"); | |
1233 | return Qnil; | |
1234 | } | |
1235 | else | |
1236 | goto exit; | |
1237 | ||
1238 | default: | |
1239 | return Qnil; | |
1240 | } | |
1241 | exit: | |
1242 | Fthrow (Qexit, Qnil); | |
1243 | /* NOTREACHED */ | |
1244 | } | |
1245 | ||
1246 | DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word, | |
1247 | 0, 0, "", | |
1248 | "Complete the minibuffer contents at most a single word.\n\ | |
1249 | After one word is completed as much as possible, a space or hyphen\n\ | |
6300d782 KH |
1250 | is added, provided that matches some possible completion.\n\ |
1251 | Return nil if there is no valid completion, else t.") | |
f927c5ae JB |
1252 | () |
1253 | { | |
1254 | Lisp_Object completion, tem; | |
1255 | register int i; | |
1256 | register unsigned char *completion_string; | |
b278606c BF |
1257 | struct gcpro gcpro1; |
1258 | ||
1259 | /* We keep calling Fbuffer_string rather than arrange for GC to | |
1260 | hold onto a pointer to one of the strings thus made. */ | |
f927c5ae JB |
1261 | |
1262 | completion = Ftry_completion (Fbuffer_string (), | |
1263 | Vminibuffer_completion_table, | |
1264 | Vminibuffer_completion_predicate); | |
56a98455 | 1265 | if (NILP (completion)) |
f927c5ae JB |
1266 | { |
1267 | bitch_at_user (); | |
1268 | temp_echo_area_glyphs (" [No match]"); | |
1269 | return Qnil; | |
1270 | } | |
1271 | if (EQ (completion, Qt)) | |
1272 | return Qnil; | |
1273 | ||
b278606c | 1274 | #if 0 /* How the below code used to look, for reference. */ |
f927c5ae JB |
1275 | tem = Fbuffer_string (); |
1276 | b = XSTRING (tem)->data; | |
1277 | i = ZV - 1 - XSTRING (completion)->size; | |
1278 | p = XSTRING (completion)->data; | |
1279 | if (i > 0 || | |
1280 | 0 <= scmp (b, p, ZV - 1)) | |
1281 | { | |
1282 | i = 1; | |
1283 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1284 | while (0 <= scmp (b + i, p, ZV - 1 - i)) | |
1285 | i++; | |
1286 | del_range (1, i + 1); | |
1287 | SET_PT (ZV); | |
1288 | } | |
1289 | #else /* Rewritten code */ | |
1290 | { | |
1291 | register unsigned char *buffer_string; | |
1292 | int buffer_length, completion_length; | |
1293 | ||
1294 | tem = Fbuffer_string (); | |
719b4a40 RS |
1295 | /* If reading a file name, |
1296 | expand any $ENVVAR refs in the buffer and in TEM. */ | |
1297 | if (EQ (Vminibuffer_completion_table, Qread_file_name_internal)) | |
1298 | { | |
1299 | Lisp_Object substituted; | |
1300 | substituted = Fsubstitute_in_file_name (tem); | |
1301 | if (! EQ (substituted, tem)) | |
1302 | { | |
1303 | tem = substituted; | |
1304 | Ferase_buffer (); | |
3cab9ae4 | 1305 | insert_from_string (tem, 0, XSTRING (tem)->size, 0); |
719b4a40 RS |
1306 | } |
1307 | } | |
f927c5ae JB |
1308 | buffer_string = XSTRING (tem)->data; |
1309 | completion_string = XSTRING (completion)->data; | |
1310 | buffer_length = XSTRING (tem)->size; /* ie ZV - BEGV */ | |
1311 | completion_length = XSTRING (completion)->size; | |
1312 | i = buffer_length - completion_length; | |
1313 | /* Mly: I don't understand what this is supposed to do AT ALL */ | |
1314 | if (i > 0 || | |
1315 | 0 <= scmp (buffer_string, completion_string, buffer_length)) | |
1316 | { | |
1317 | /* Set buffer to longest match of buffer tail and completion head. */ | |
1318 | if (i <= 0) i = 1; | |
1319 | buffer_string += i; | |
1320 | buffer_length -= i; | |
1321 | while (0 <= scmp (buffer_string++, completion_string, buffer_length--)) | |
1322 | i++; | |
1323 | del_range (1, i + 1); | |
1324 | SET_PT (ZV); | |
1325 | } | |
1326 | } | |
1327 | #endif /* Rewritten code */ | |
1328 | i = ZV - BEGV; | |
1329 | ||
1330 | /* If completion finds next char not unique, | |
b278606c | 1331 | consider adding a space or a hyphen. */ |
f927c5ae JB |
1332 | if (i == XSTRING (completion)->size) |
1333 | { | |
b278606c | 1334 | GCPRO1 (completion); |
f927c5ae JB |
1335 | tem = Ftry_completion (concat2 (Fbuffer_string (), build_string (" ")), |
1336 | Vminibuffer_completion_table, | |
1337 | Vminibuffer_completion_predicate); | |
b278606c BF |
1338 | UNGCPRO; |
1339 | ||
f927c5ae JB |
1340 | if (XTYPE (tem) == Lisp_String) |
1341 | completion = tem; | |
1342 | else | |
1343 | { | |
b278606c BF |
1344 | GCPRO1 (completion); |
1345 | tem = | |
1346 | Ftry_completion (concat2 (Fbuffer_string (), build_string ("-")), | |
1347 | Vminibuffer_completion_table, | |
1348 | Vminibuffer_completion_predicate); | |
1349 | UNGCPRO; | |
1350 | ||
f927c5ae JB |
1351 | if (XTYPE (tem) == Lisp_String) |
1352 | completion = tem; | |
1353 | } | |
1354 | } | |
1355 | ||
1356 | /* Now find first word-break in the stuff found by completion. | |
1357 | i gets index in string of where to stop completing. */ | |
b278606c | 1358 | |
f927c5ae JB |
1359 | completion_string = XSTRING (completion)->data; |
1360 | ||
1361 | for (; i < XSTRING (completion)->size; i++) | |
1362 | if (SYNTAX (completion_string[i]) != Sword) break; | |
1363 | if (i < XSTRING (completion)->size) | |
1364 | i = i + 1; | |
1365 | ||
1366 | /* If got no characters, print help for user. */ | |
1367 | ||
1368 | if (i == ZV - BEGV) | |
1369 | { | |
1370 | if (auto_help) | |
1371 | Fminibuffer_completion_help (); | |
1372 | return Qnil; | |
1373 | } | |
1374 | ||
1375 | /* Otherwise insert in minibuffer the chars we got */ | |
1376 | ||
1377 | Ferase_buffer (); | |
3cab9ae4 | 1378 | insert_from_string (completion, 0, i, 1); |
f927c5ae JB |
1379 | return Qt; |
1380 | } | |
1381 | \f | |
1382 | DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list, | |
1383 | 1, 1, 0, | |
2dc2b736 | 1384 | "Display the list of completions, COMPLETIONS, using `standard-output'.\n\ |
f927c5ae | 1385 | Each element may be just a symbol or string\n\ |
2d7e41fe RS |
1386 | or may be a list of two strings to be printed as if concatenated.\n\ |
1387 | `standard-output' must be a buffer.\n\ | |
1388 | At the end, run the normal hook `completion-setup-hook'.\n\ | |
1389 | It can find the completion buffer in `standard-output'.") | |
f927c5ae JB |
1390 | (completions) |
1391 | Lisp_Object completions; | |
1392 | { | |
1393 | register Lisp_Object tail, elt; | |
1394 | register int i; | |
2dc2b736 | 1395 | int column = 0; |
f927c5ae JB |
1396 | /* No GCPRO needed, since (when it matters) every variable |
1397 | points to a non-string that is pointed to by COMPLETIONS. */ | |
2dc2b736 RS |
1398 | struct buffer *old = current_buffer; |
1399 | if (XTYPE (Vstandard_output) == Lisp_Buffer) | |
1400 | set_buffer_internal (XBUFFER (Vstandard_output)); | |
f927c5ae | 1401 | |
56a98455 | 1402 | if (NILP (completions)) |
cfc736bf RS |
1403 | write_string ("There are no possible completions of what you have typed.", |
1404 | -1); | |
f927c5ae JB |
1405 | else |
1406 | { | |
2dc2b736 | 1407 | write_string ("Possible completions are:", -1); |
56a98455 | 1408 | for (tail = completions, i = 0; !NILP (tail); tail = Fcdr (tail), i++) |
f927c5ae JB |
1409 | { |
1410 | /* this needs fixing for the case of long completions | |
1411 | and/or narrow windows */ | |
1412 | /* Sadly, the window it will appear in is not known | |
1413 | until after the text has been made. */ | |
1414 | if (i & 1) | |
2dc2b736 RS |
1415 | { |
1416 | if (XTYPE (Vstandard_output) == Lisp_Buffer) | |
1417 | Findent_to (make_number (35), make_number (1)); | |
1418 | else | |
1419 | { | |
1420 | do | |
1421 | { | |
1422 | write_string (" ", -1); | |
1423 | column++; | |
1424 | } | |
1425 | while (column < 35); | |
1426 | } | |
1427 | } | |
f927c5ae | 1428 | else |
2dc2b736 RS |
1429 | { |
1430 | Fterpri (Qnil); | |
1431 | column = 0; | |
1432 | } | |
f927c5ae JB |
1433 | elt = Fcar (tail); |
1434 | if (CONSP (elt)) | |
1435 | { | |
2dc2b736 RS |
1436 | if (XTYPE (Vstandard_output) != Lisp_Buffer) |
1437 | { | |
07accdfe | 1438 | Lisp_Object tem; |
2dc2b736 RS |
1439 | tem = Flength (Fcar (elt)); |
1440 | column += XINT (tem); | |
1441 | tem = Flength (Fcar (Fcdr (elt))); | |
1442 | column += XINT (tem); | |
1443 | } | |
f927c5ae JB |
1444 | Fprinc (Fcar (elt), Qnil); |
1445 | Fprinc (Fcar (Fcdr (elt)), Qnil); | |
1446 | } | |
1447 | else | |
2dc2b736 RS |
1448 | { |
1449 | if (XTYPE (Vstandard_output) != Lisp_Buffer) | |
1450 | { | |
1451 | Lisp_Object tem; | |
f1b28218 | 1452 | tem = Flength (elt); |
2dc2b736 RS |
1453 | column += XINT (tem); |
1454 | } | |
1455 | Fprinc (elt, Qnil); | |
1456 | } | |
f927c5ae JB |
1457 | } |
1458 | } | |
2dc2b736 | 1459 | |
2d7e41fe RS |
1460 | if (XTYPE (Vstandard_output) == Lisp_Buffer) |
1461 | set_buffer_internal (old); | |
1462 | ||
cfc736bf RS |
1463 | if (!NILP (Vrun_hooks)) |
1464 | call1 (Vrun_hooks, intern ("completion-setup-hook")); | |
1465 | ||
f927c5ae JB |
1466 | return Qnil; |
1467 | } | |
1468 | ||
1469 | DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help, | |
1470 | 0, 0, "", | |
1471 | "Display a list of possible completions of the current minibuffer contents.") | |
1472 | () | |
1473 | { | |
1474 | Lisp_Object completions; | |
1475 | ||
1476 | message ("Making completion list..."); | |
1477 | completions = Fall_completions (Fbuffer_string (), | |
1478 | Vminibuffer_completion_table, | |
1479 | Vminibuffer_completion_predicate); | |
1480 | echo_area_glyphs = 0; | |
1481 | ||
56a98455 | 1482 | if (NILP (completions)) |
f927c5ae JB |
1483 | { |
1484 | bitch_at_user (); | |
1485 | temp_echo_area_glyphs (" [No completions]"); | |
1486 | } | |
1487 | else | |
1488 | internal_with_output_to_temp_buffer ("*Completions*", | |
1489 | Fdisplay_completion_list, | |
1490 | Fsort (completions, Qstring_lessp)); | |
1491 | return Qnil; | |
1492 | } | |
1493 | \f | |
1494 | DEFUN ("self-insert-and-exit", Fself_insert_and_exit, Sself_insert_and_exit, 0, 0, "", | |
1495 | "Terminate minibuffer input.") | |
1496 | () | |
1497 | { | |
1498 | if (XTYPE (last_command_char) == Lisp_Int) | |
1499 | internal_self_insert (last_command_char, 0); | |
1500 | else | |
1501 | bitch_at_user (); | |
1502 | ||
1503 | Fthrow (Qexit, Qnil); | |
1504 | } | |
1505 | ||
1506 | DEFUN ("exit-minibuffer", Fexit_minibuffer, Sexit_minibuffer, 0, 0, "", | |
1507 | "Terminate this minibuffer argument.") | |
1508 | () | |
1509 | { | |
1510 | Fthrow (Qexit, Qnil); | |
1511 | } | |
1512 | ||
1513 | DEFUN ("minibuffer-depth", Fminibuffer_depth, Sminibuffer_depth, 0, 0, 0, | |
1514 | "Return current depth of activations of minibuffer, a nonnegative integer.") | |
1515 | () | |
1516 | { | |
1517 | return make_number (minibuf_level); | |
1518 | } | |
1519 | ||
37e9a934 KH |
1520 | DEFUN ("minibuffer-prompt", Fminibuffer_prompt, Sminibuffer_prompt, 0, 0, 0, |
1521 | "Return the prompt string of the currently-active minibuffer.\n\ | |
1522 | If no minibuffer is active, return nil.") | |
1523 | () | |
1524 | { | |
1525 | if (!minibuf_prompt) | |
1526 | return Qnil; | |
1527 | return build_string (minibuf_prompt); | |
1528 | } | |
1529 | ||
1530 | DEFUN ("minibuffer-prompt-width", Fminibuffer_prompt_width, | |
1531 | Sminibuffer_prompt_width, 0, 0, 0, | |
1532 | "Return the display width of the minibuffer prompt.") | |
1533 | () | |
1534 | { | |
1535 | Lisp_Object width; | |
1536 | XFASTINT (width) = minibuf_prompt_width; | |
1537 | return width; | |
1538 | } | |
f927c5ae JB |
1539 | \f |
1540 | init_minibuf_once () | |
1541 | { | |
1542 | Vminibuffer_list = Qnil; | |
1543 | staticpro (&Vminibuffer_list); | |
1544 | } | |
1545 | ||
1546 | syms_of_minibuf () | |
1547 | { | |
1548 | minibuf_level = 0; | |
1549 | minibuf_prompt = 0; | |
1550 | minibuf_save_vector_size = 5; | |
1551 | minibuf_save_vector = (struct minibuf_save_data *) malloc (5 * sizeof (struct minibuf_save_data)); | |
1552 | ||
719b4a40 RS |
1553 | Qread_file_name_internal = intern ("read-file-name-internal"); |
1554 | staticpro (&Qread_file_name_internal); | |
1555 | ||
f927c5ae JB |
1556 | Qminibuffer_completion_table = intern ("minibuffer-completion-table"); |
1557 | staticpro (&Qminibuffer_completion_table); | |
1558 | ||
1559 | Qminibuffer_completion_confirm = intern ("minibuffer-completion-confirm"); | |
1560 | staticpro (&Qminibuffer_completion_confirm); | |
1561 | ||
1562 | Qminibuffer_completion_predicate = intern ("minibuffer-completion-predicate"); | |
1563 | staticpro (&Qminibuffer_completion_predicate); | |
1564 | ||
1565 | staticpro (&last_minibuf_string); | |
1566 | last_minibuf_string = Qnil; | |
1567 | ||
1568 | Quser_variable_p = intern ("user-variable-p"); | |
1569 | staticpro (&Quser_variable_p); | |
1570 | ||
770970cb RS |
1571 | Qminibuffer_history = intern ("minibuffer-history"); |
1572 | staticpro (&Qminibuffer_history); | |
f927c5ae | 1573 | |
5c781212 RS |
1574 | Qminibuffer_setup_hook = intern ("minibuffer-setup-hook"); |
1575 | staticpro (&Qminibuffer_setup_hook); | |
1576 | ||
1577 | DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook, | |
1578 | "Normal hook run just after entry to minibuffer."); | |
1579 | Vminibuffer_setup_hook = Qnil; | |
1580 | ||
f927c5ae JB |
1581 | DEFVAR_BOOL ("completion-auto-help", &auto_help, |
1582 | "*Non-nil means automatically provide help for invalid completion input."); | |
1583 | auto_help = 1; | |
1584 | ||
1585 | DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case, | |
1586 | "Non-nil means don't consider case significant in completion."); | |
1587 | completion_ignore_case = 0; | |
1588 | ||
1589 | DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers, | |
1590 | "*Non-nil means to allow minibuffer commands while in the minibuffer.\n\ | |
1591 | More precisely, this variable makes a difference when the minibuffer window\n\ | |
1592 | is the selected window. If you are in some other window, minibuffer commands\n\ | |
1593 | are allowed even if a minibuffer is active."); | |
1594 | enable_recursive_minibuffers = 0; | |
1595 | ||
1596 | DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table, | |
1597 | "Alist or obarray used for completion in the minibuffer.\n\ | |
1598 | This becomes the ALIST argument to `try-completion' and `all-completion'.\n\ | |
1599 | \n\ | |
1600 | The value may alternatively be a function, which is given three arguments:\n\ | |
1601 | STRING, the current buffer contents;\n\ | |
1602 | PREDICATE, the predicate for filtering possible matches;\n\ | |
1603 | CODE, which says what kind of things to do.\n\ | |
1604 | CODE can be nil, t or `lambda'.\n\ | |
1605 | nil means to return the best completion of STRING, or nil if there is none.\n\ | |
1606 | t means to return a list of all possible completions of STRING.\n\ | |
1607 | `lambda' means to return t if STRING is a valid completion as it stands."); | |
1608 | Vminibuffer_completion_table = Qnil; | |
1609 | ||
1610 | DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate, | |
1611 | "Within call to `completing-read', this holds the PREDICATE argument."); | |
1612 | Vminibuffer_completion_predicate = Qnil; | |
1613 | ||
1614 | DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm, | |
1615 | "Non-nil => demand confirmation of completion before exiting minibuffer."); | |
1616 | Vminibuffer_completion_confirm = Qnil; | |
1617 | ||
1618 | DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form, | |
1619 | "Value that `help-form' takes on inside the minibuffer."); | |
1620 | Vminibuffer_help_form = Qnil; | |
1621 | ||
770970cb RS |
1622 | DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable, |
1623 | "History list symbol to add minibuffer values to.\n\ | |
1624 | Each minibuffer output is added with\n\ | |
1625 | (set minibuffer-history-variable\n\ | |
1626 | (cons STRING (symbol-value minibuffer-history-variable)))"); | |
1627 | XFASTINT (Vminibuffer_history_variable) = 0; | |
1628 | ||
1629 | DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position, | |
1630 | "Current position of redoing in the history list."); | |
1631 | Vminibuffer_history_position = Qnil; | |
1632 | ||
6a9ee000 RS |
1633 | DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise, |
1634 | "*Non-nil means entering the minibuffer raises the minibuffer's frame."); | |
1635 | minibuffer_auto_raise = 0; | |
1636 | ||
42006772 RS |
1637 | DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list, |
1638 | "List of regexps that should restrict possible completions."); | |
1639 | Vcompletion_regexp_list = Qnil; | |
1640 | ||
f927c5ae JB |
1641 | defsubr (&Sread_from_minibuffer); |
1642 | defsubr (&Seval_minibuffer); | |
1643 | defsubr (&Sread_minibuffer); | |
1644 | defsubr (&Sread_string); | |
1645 | defsubr (&Sread_command); | |
1646 | defsubr (&Sread_variable); | |
1647 | defsubr (&Sread_buffer); | |
1648 | defsubr (&Sread_no_blanks_input); | |
1649 | defsubr (&Sminibuffer_depth); | |
37e9a934 KH |
1650 | defsubr (&Sminibuffer_prompt); |
1651 | defsubr (&Sminibuffer_prompt_width); | |
f927c5ae JB |
1652 | |
1653 | defsubr (&Stry_completion); | |
1654 | defsubr (&Sall_completions); | |
1655 | defsubr (&Scompleting_read); | |
1656 | defsubr (&Sminibuffer_complete); | |
1657 | defsubr (&Sminibuffer_complete_word); | |
1658 | defsubr (&Sminibuffer_complete_and_exit); | |
1659 | defsubr (&Sdisplay_completion_list); | |
1660 | defsubr (&Sminibuffer_completion_help); | |
1661 | ||
1662 | defsubr (&Sself_insert_and_exit); | |
1663 | defsubr (&Sexit_minibuffer); | |
1664 | ||
1665 | } | |
1666 | ||
1667 | keys_of_minibuf () | |
1668 | { | |
1669 | initial_define_key (Vminibuffer_local_map, Ctl ('g'), | |
1670 | "abort-recursive-edit"); | |
1671 | initial_define_key (Vminibuffer_local_map, Ctl ('m'), | |
1672 | "exit-minibuffer"); | |
1673 | initial_define_key (Vminibuffer_local_map, Ctl ('j'), | |
1674 | "exit-minibuffer"); | |
1675 | ||
1676 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('g'), | |
1677 | "abort-recursive-edit"); | |
1678 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('m'), | |
1679 | "exit-minibuffer"); | |
1680 | initial_define_key (Vminibuffer_local_ns_map, Ctl ('j'), | |
1681 | "exit-minibuffer"); | |
1682 | ||
1683 | initial_define_key (Vminibuffer_local_ns_map, ' ', | |
1684 | "exit-minibuffer"); | |
1685 | initial_define_key (Vminibuffer_local_ns_map, '\t', | |
1686 | "exit-minibuffer"); | |
1687 | initial_define_key (Vminibuffer_local_ns_map, '?', | |
1688 | "self-insert-and-exit"); | |
1689 | ||
1690 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('g'), | |
1691 | "abort-recursive-edit"); | |
1692 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('m'), | |
1693 | "exit-minibuffer"); | |
1694 | initial_define_key (Vminibuffer_local_completion_map, Ctl ('j'), | |
1695 | "exit-minibuffer"); | |
1696 | ||
1697 | initial_define_key (Vminibuffer_local_completion_map, '\t', | |
1698 | "minibuffer-complete"); | |
1699 | initial_define_key (Vminibuffer_local_completion_map, ' ', | |
1700 | "minibuffer-complete-word"); | |
1701 | initial_define_key (Vminibuffer_local_completion_map, '?', | |
1702 | "minibuffer-completion-help"); | |
1703 | ||
1704 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('g'), | |
1705 | "abort-recursive-edit"); | |
1706 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('m'), | |
1707 | "minibuffer-complete-and-exit"); | |
1708 | initial_define_key (Vminibuffer_local_must_match_map, Ctl ('j'), | |
1709 | "minibuffer-complete-and-exit"); | |
1710 | initial_define_key (Vminibuffer_local_must_match_map, '\t', | |
1711 | "minibuffer-complete"); | |
1712 | initial_define_key (Vminibuffer_local_must_match_map, ' ', | |
1713 | "minibuffer-complete-word"); | |
1714 | initial_define_key (Vminibuffer_local_must_match_map, '?', | |
1715 | "minibuffer-completion-help"); | |
1716 | } |