1 /* Minibuffer input and completion.
2 Copyright (C) 1985, 1986, 1993, 1994 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
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
8 the Free Software Foundation; either version 2, or (at your option)
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.
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. */
25 #include "dispextern.h"
30 #define min(a, b) ((a) < (b) ? (a) : (b))
34 /* List of buffers for use as minibuffers.
35 The first element of the list is used for the outermost minibuffer
36 invocation, the next element is used for a recursive minibuffer
37 invocation, etc. The list is extended at the end as deeper
38 minibuffer recursions are encountered. */
39 Lisp_Object Vminibuffer_list
;
41 /* Data to remember during recursive minibuffer invocations */
42 Lisp_Object minibuf_save_list
;
44 /* Depth in minibuffer invocations. */
47 /* Nonzero means display completion help for invalid input */
50 /* Fread_minibuffer leaves the input here as a string. */
51 Lisp_Object last_minibuf_string
;
53 /* Nonzero means let functions called when within a minibuffer
54 invoke recursive minibuffers (to read arguments, or whatever) */
55 int enable_recursive_minibuffers
;
57 /* help-form is bound to this while in the minibuffer. */
59 Lisp_Object Vminibuffer_help_form
;
61 /* Variable which is the history list to add minibuffer values to. */
63 Lisp_Object Vminibuffer_history_variable
;
65 /* Current position in the history list (adjusted by M-n and M-p). */
67 Lisp_Object Vminibuffer_history_position
;
69 Lisp_Object Qminibuffer_history
;
71 Lisp_Object Qread_file_name_internal
;
73 /* Normal hooks for entry to and exit from minibuffer. */
75 Lisp_Object Qminibuffer_setup_hook
, Vminibuffer_setup_hook
;
76 Lisp_Object Qminibuffer_exit_hook
, Vminibuffer_exit_hook
;
78 /* Nonzero means completion ignores case. */
80 int completion_ignore_case
;
82 /* List of regexps that should restrict possible completions. */
84 Lisp_Object Vcompletion_regexp_list
;
86 /* Nonzero means raise the minibuffer frame when the minibuffer
89 int minibuffer_auto_raise
;
91 /* If last completion attempt reported "Complete but not unique"
92 then this is the string completed then; otherwise this is nil. */
94 static Lisp_Object last_exact_completion
;
96 Lisp_Object Quser_variable_p
;
98 /* Non-nil means it is the window for C-M-v to scroll
99 when the minibuffer is selected. */
100 extern Lisp_Object Vminibuf_scroll_window
;
102 /* Actual minibuffer invocation. */
104 void read_minibuf_unwind ();
105 Lisp_Object
get_minibuffer ();
106 Lisp_Object
read_minibuf ();
108 /* Read from the minibuffer using keymap MAP, initial contents INITIAL
109 (a string), putting point minus BACKUP_N chars from the end of INITIAL,
110 prompting with PROMPT (a string), using history list HISTVAR
111 with initial position HISTPOS. (BACKUP_N should be <= 0.)
113 Normally return the result as a string (the text that was read),
114 but if EXPFLAG is non-nil, read it and return the object read.
115 If HISTVAR is given, save the value read on that history only if it doesn't
116 match the front of that history list exactly. The value is pushed onto
117 the list as the string that was read, or as the object that resulted iff
118 EXPFLAG is non-nil. */
121 read_minibuf (map
, initial
, prompt
, backup_n
, expflag
, histvar
, histpos
)
125 Lisp_Object backup_n
;
130 register Lisp_Object val
;
131 int count
= specpdl_ptr
- specpdl
;
132 Lisp_Object mini_frame
;
134 if (!STRINGP (prompt
))
135 prompt
= build_string ("");
137 /* Emacs in -batch mode calls minibuffer: print the prompt. */
138 if (noninteractive
&& STRINGP (prompt
))
139 printf ("%s", XSTRING (prompt
)->data
);
141 if (!enable_recursive_minibuffers
143 && (EQ (selected_window
, minibuf_window
)))
145 || selected_frame
!= XFRAME (WINDOW_FRAME (XWINDOW (minibuf_window
)))
147 error ("Command attempted to use minibuffer while in minibuffer");
149 /* Could we simply bind these variables instead? */
151 = Fcons (minibuf_prompt
,
152 Fcons (make_number (minibuf_prompt_width
),
154 Fcons (Vcurrent_prefix_arg
,
155 Fcons (Vminibuffer_history_position
,
156 Fcons (Vminibuffer_history_variable
,
157 minibuf_save_list
))))));
158 minibuf_prompt_width
= 0;
160 record_unwind_protect (Fset_window_configuration
,
161 Fcurrent_window_configuration (Qnil
));
163 /* If the minibuffer window is on a different frame, save that
164 frame's configuration too. */
166 mini_frame
= WINDOW_FRAME (XWINDOW (minibuf_window
));
167 if (XFRAME (mini_frame
) != selected_frame
)
168 record_unwind_protect (Fset_window_configuration
,
169 Fcurrent_window_configuration (mini_frame
));
171 /* If the minibuffer is on an iconified or invisible frame,
172 make it visible now. */
173 Fmake_frame_visible (mini_frame
);
175 if (minibuffer_auto_raise
)
176 Fraise_frame (mini_frame
);
179 val
= current_buffer
->directory
;
180 Fset_buffer (get_minibuffer (minibuf_level
));
182 /* The current buffer's default directory is usually the right thing
183 for our minibuffer here. However, if you're typing a command at
184 a minibuffer-only frame when minibuf_level is zero, then buf IS
185 the current_buffer, so reset_buffer leaves buf's default
186 directory unchanged. This is a bummer when you've just started
187 up Emacs and buf's default directory is Qnil. Here's a hack; can
188 you think of something better to do? Find another buffer with a
189 better directory, and use that one instead. */
191 current_buffer
->directory
= val
;
194 Lisp_Object buf_list
;
196 for (buf_list
= Vbuffer_alist
;
198 buf_list
= XCONS (buf_list
)->cdr
)
200 Lisp_Object other_buf
;
202 other_buf
= XCONS (XCONS (buf_list
)->car
)->cdr
;
203 if (STRINGP (XBUFFER (other_buf
)->directory
))
205 current_buffer
->directory
= XBUFFER (other_buf
)->directory
;
212 if (XFRAME (mini_frame
) != selected_frame
)
213 Fredirect_frame_focus (Fselected_frame (), mini_frame
);
215 Fmake_local_variable (Qprint_escape_newlines
);
216 print_escape_newlines
= 1;
218 record_unwind_protect (read_minibuf_unwind
, Qnil
);
220 Vminibuf_scroll_window
= selected_window
;
221 Fset_window_buffer (minibuf_window
, Fcurrent_buffer ());
222 Fselect_window (minibuf_window
);
223 XFASTINT (XWINDOW (minibuf_window
)->hscroll
) = 0;
230 Finsert (1, &initial
);
231 if (!NILP (backup_n
) && INTEGERP (backup_n
))
232 Fforward_char (backup_n
);
235 minibuf_prompt
= Fcopy_sequence (prompt
);
236 echo_area_glyphs
= 0;
237 /* This is in case the minibuffer-setup-hook calls Fsit_for. */
238 previous_echo_glyphs
= 0;
240 Vhelp_form
= Vminibuffer_help_form
;
241 current_buffer
->keymap
= map
;
242 Vminibuffer_history_position
= histpos
;
243 Vminibuffer_history_variable
= histvar
;
245 /* Run our hook, but not if it is empty.
246 (run-hooks would do nothing if it is empty,
247 but it's important to save time here in the usual case. */
248 if (!NILP (Vminibuffer_setup_hook
) && !EQ (Vminibuffer_setup_hook
, Qunbound
)
249 && !NILP (Vrun_hooks
))
250 call1 (Vrun_hooks
, Qminibuffer_setup_hook
);
252 /* ??? MCC did redraw_screen here if switching screens. */
255 /* If cursor is on the minibuffer line,
256 show the user we have exited by putting it in column 0. */
257 if ((FRAME_CURSOR_Y (selected_frame
)
258 >= XFASTINT (XWINDOW (minibuf_window
)->top
))
261 FRAME_CURSOR_X (selected_frame
) = 0;
262 update_frame (selected_frame
, 1, 1);
265 /* Make minibuffer contents into a string */
266 val
= make_buffer_string (1, Z
);
267 bcopy (GAP_END_ADDR
, XSTRING (val
)->data
+ GPT
- BEG
, Z
- GPT
);
269 /* VAL is the string of minibuffer text. */
270 last_minibuf_string
= val
;
272 /* Add the value to the appropriate history list unless it is empty. */
273 if (XSTRING (val
)->size
!= 0
274 && SYMBOLP (Vminibuffer_history_variable
)
275 && ! EQ (XSYMBOL (Vminibuffer_history_variable
)->value
, Qunbound
))
277 /* If the caller wanted to save the value read on a history list,
278 then do so if the value is not already the front of the list. */
280 histval
= Fsymbol_value (Vminibuffer_history_variable
);
282 /* The value of the history variable must be a cons or nil. Other
283 values are unacceptable. We silently ignore these values. */
286 && NILP (Fequal (last_minibuf_string
, Fcar (histval
)))))
287 Fset (Vminibuffer_history_variable
,
288 Fcons (last_minibuf_string
, histval
));
291 /* If Lisp form desired instead of string, parse it. */
294 Lisp_Object expr_and_pos
;
297 expr_and_pos
= Fread_from_string (val
, Qnil
, Qnil
);
298 /* Ignore trailing whitespace; any other trailing junk is an error. */
299 for (p
= XSTRING (val
)->data
+ XINT (Fcdr (expr_and_pos
)); *p
; p
++)
300 if (*p
!= ' ' && *p
!= '\t' && *p
!= '\n')
301 error ("Trailing garbage following expression");
302 val
= Fcar (expr_and_pos
);
305 return unbind_to (count
, val
); /* The appropriate frame will get selected
306 in set-window-configuration. */
309 /* Return a buffer to be used as the minibuffer at depth `depth'.
310 depth = 0 is the lowest allowed argument, and that is the value
311 used for nonrecursive minibuffer invocations */
314 get_minibuffer (depth
)
317 Lisp_Object tail
, num
, buf
;
319 extern Lisp_Object
nconc2 ();
321 XFASTINT (num
) = depth
;
322 tail
= Fnthcdr (num
, Vminibuffer_list
);
325 tail
= Fcons (Qnil
, Qnil
);
326 Vminibuffer_list
= nconc2 (Vminibuffer_list
, tail
);
329 if (NILP (buf
) || NILP (XBUFFER (buf
)->name
))
331 sprintf (name
, " *Minibuf-%d*", depth
);
332 buf
= Fget_buffer_create (build_string (name
));
334 /* Although the buffer's name starts with a space, undo should be
336 Fbuffer_enable_undo (buf
);
338 XCONS (tail
)->car
= buf
;
342 int count
= specpdl_ptr
- specpdl
;
344 reset_buffer (XBUFFER (buf
));
345 record_unwind_protect (Fset_buffer
, Fcurrent_buffer ());
347 Fkill_all_local_variables ();
348 unbind_to (count
, Qnil
);
354 /* This function is called on exiting minibuffer, whether normally or not,
355 and it restores the current window, buffer, etc. */
358 read_minibuf_unwind (data
)
361 Lisp_Object old_deactivate_mark
;
363 /* We are exiting the minibuffer one way or the other,
365 if (!NILP (Vminibuffer_exit_hook
) && !EQ (Vminibuffer_exit_hook
, Qunbound
)
366 && !NILP (Vrun_hooks
))
367 call1 (Vrun_hooks
, Qminibuffer_exit_hook
);
369 /* Erase the minibuffer we were using at this level. */
370 Fset_buffer (XWINDOW (minibuf_window
)->buffer
);
372 /* Prevent error in erase-buffer. */
373 current_buffer
->read_only
= Qnil
;
375 old_deactivate_mark
= Vdeactivate_mark
;
377 Vdeactivate_mark
= old_deactivate_mark
;
379 /* If this was a recursive minibuffer,
380 tie the minibuffer window back to the outer level minibuffer buffer */
382 /* Make sure minibuffer window is erased, not ignored */
383 windows_or_buffers_changed
++;
384 XFASTINT (XWINDOW (minibuf_window
)->last_modified
) = 0;
386 /* Restore prompt, etc from outer minibuffer */
387 minibuf_prompt
= Fcar (minibuf_save_list
);
388 minibuf_save_list
= Fcdr (minibuf_save_list
);
389 minibuf_prompt_width
= XFASTINT (Fcar (minibuf_save_list
));
390 minibuf_save_list
= Fcdr (minibuf_save_list
);
391 Vhelp_form
= Fcar (minibuf_save_list
);
392 minibuf_save_list
= Fcdr (minibuf_save_list
);
393 Vcurrent_prefix_arg
= Fcar (minibuf_save_list
);
394 minibuf_save_list
= Fcdr (minibuf_save_list
);
395 Vminibuffer_history_position
= Fcar (minibuf_save_list
);
396 minibuf_save_list
= Fcdr (minibuf_save_list
);
397 Vminibuffer_history_variable
= Fcar (minibuf_save_list
);
398 minibuf_save_list
= Fcdr (minibuf_save_list
);
402 /* This comment supplies the doc string for read-from-minibuffer,
403 for make-docfile to see. We cannot put this in the real DEFUN
404 due to limits in the Unix cpp.
406 DEFUN ("read-from-minibuffer", Fread_from_minibuffer, Sread_from_minibuffer, 1, 5, 0,
407 "Read a string from the minibuffer, prompting with string PROMPT.\n\
408 If optional second arg INITIAL-CONTENTS is non-nil, it is a string\n\
409 to be inserted into the minibuffer before reading input.\n\
410 If INITIAL-CONTENTS is (STRING . POSITION), the initial input\n\
411 is STRING, but point is placed POSITION characters into the string.\n\
412 Third arg KEYMAP is a keymap to use whilst reading;\n\
413 if omitted or nil, the default is `minibuffer-local-map'.\n\
414 If fourth arg READ is non-nil, then interpret the result as a lisp object\n\
415 and return that object:\n\
416 in other words, do `(car (read-from-string INPUT-STRING))'\n\
417 Fifth arg HIST, if non-nil, specifies a history list\n\
418 and optionally the initial position in the list.\n\
419 It can be a symbol, which is the history list variable to use,\n\
420 or it can be a cons cell (HISTVAR . HISTPOS).\n\
421 In that case, HISTVAR is the history list variable to use,\n\
422 and HISTPOS is the initial position (the position in the list\n\
423 which INITIAL-CONTENTS corresponds to).\n\
424 Positions are counted starting from 1 at the beginning of the list."
427 DEFUN ("read-from-minibuffer", Fread_from_minibuffer
, Sread_from_minibuffer
, 1, 5, 0,
428 0 /* See immediately above */)
429 (prompt
, initial_contents
, keymap
, read
, hist
)
430 Lisp_Object prompt
, initial_contents
, keymap
, read
, hist
;
433 Lisp_Object histvar
, histpos
, position
;
436 CHECK_STRING (prompt
, 0);
437 if (!NILP (initial_contents
))
439 if (CONSP (initial_contents
))
441 position
= Fcdr (initial_contents
);
442 initial_contents
= Fcar (initial_contents
);
444 CHECK_STRING (initial_contents
, 1);
445 if (!NILP (position
))
447 CHECK_NUMBER (position
, 0);
448 /* Convert to distance from end of input. */
449 pos
= XINT (position
) - 1 - XSTRING (initial_contents
)->size
;
454 keymap
= Vminibuffer_local_map
;
456 keymap
= get_keymap (keymap
,2);
465 histvar
= Fcar_safe (hist
);
466 histpos
= Fcdr_safe (hist
);
469 histvar
= Qminibuffer_history
;
471 XFASTINT (histpos
) = 0;
473 return read_minibuf (keymap
, initial_contents
, prompt
,
474 make_number (pos
), !NILP (read
), histvar
, histpos
);
477 DEFUN ("read-minibuffer", Fread_minibuffer
, Sread_minibuffer
, 1, 2, 0,
478 "Return a Lisp object read using the minibuffer.\n\
479 Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\
480 is a string to insert in the minibuffer before reading.")
481 (prompt
, initial_contents
)
482 Lisp_Object prompt
, initial_contents
;
484 CHECK_STRING (prompt
, 0);
485 if (!NILP (initial_contents
))
486 CHECK_STRING (initial_contents
, 1);
487 return read_minibuf (Vminibuffer_local_map
, initial_contents
,
488 prompt
, Qnil
, 1, Qminibuffer_history
, make_number (0));
491 DEFUN ("eval-minibuffer", Feval_minibuffer
, Seval_minibuffer
, 1, 2, 0,
492 "Return value of Lisp expression read using the minibuffer.\n\
493 Prompt with PROMPT. If non-nil, optional second arg INITIAL-CONTENTS\n\
494 is a string to insert in the minibuffer before reading.")
495 (prompt
, initial_contents
)
496 Lisp_Object prompt
, initial_contents
;
498 return Feval (Fread_minibuffer (prompt
, initial_contents
));
501 /* Functions that use the minibuffer to read various things. */
503 DEFUN ("read-string", Fread_string
, Sread_string
, 1, 2, 0,
504 "Read a string from the minibuffer, prompting with string PROMPT.\n\
505 If non-nil second arg INITIAL-INPUT is a string to insert before reading.")
506 (prompt
, initial_input
)
507 Lisp_Object prompt
, initial_input
;
509 return Fread_from_minibuffer (prompt
, initial_input
, Qnil
, Qnil
, Qnil
);
512 DEFUN ("read-no-blanks-input", Fread_no_blanks_input
, Sread_no_blanks_input
, 1, 2, 0,
513 "Args PROMPT and INIT, strings. Read a string from the terminal, not allowing blanks.\n\
514 Prompt with PROMPT, and provide INIT as an initial value of the input string.")
516 Lisp_Object prompt
, init
;
518 CHECK_STRING (prompt
, 0);
520 CHECK_STRING (init
, 1);
522 return read_minibuf (Vminibuffer_local_ns_map
, init
, prompt
, Qnil
, 0,
523 Qminibuffer_history
, make_number (0));
526 DEFUN ("read-command", Fread_command
, Sread_command
, 1, 1, 0,
527 "One arg PROMPT, a string. Read the name of a command and return as a symbol.\n\
528 Prompts with PROMPT.")
532 return Fintern (Fcompleting_read (prompt
, Vobarray
, Qcommandp
, Qt
, Qnil
, Qnil
),
537 DEFUN ("read-function", Fread_function
, Sread_function
, 1, 1, 0,
538 "One arg PROMPT, a string. Read the name of a function and return as a symbol.\n\
539 Prompts with PROMPT.")
543 return Fintern (Fcompleting_read (prompt
, Vobarray
, Qfboundp
, Qt
, Qnil
, Qnil
),
548 DEFUN ("read-variable", Fread_variable
, Sread_variable
, 1, 1, 0,
549 "One arg PROMPT, a string. Read the name of a user variable and return\n\
550 it as a symbol. Prompts with PROMPT.\n\
551 A user variable is one whose documentation starts with a `*' character.")
555 return Fintern (Fcompleting_read (prompt
, Vobarray
,
556 Quser_variable_p
, Qt
, Qnil
, Qnil
),
560 DEFUN ("read-buffer", Fread_buffer
, Sread_buffer
, 1, 3, 0,
561 "One arg PROMPT, a string. Read the name of a buffer and return as a string.\n\
562 Prompts with PROMPT.\n\
563 Optional second arg is value to return if user enters an empty line.\n\
564 If optional third arg REQUIRE-MATCH is non-nil, only existing buffer names are allowed.")
565 (prompt
, def
, require_match
)
566 Lisp_Object prompt
, def
, require_match
;
573 def
= XBUFFER (def
)->name
;
576 args
[0] = build_string ("%s(default %s) ");
579 prompt
= Fformat (3, args
);
582 tem
= Fcompleting_read (prompt
, Vbuffer_alist
, Qnil
, require_match
, Qnil
, Qnil
);
584 if (XSTRING (tem
)->size
)
589 DEFUN ("try-completion", Ftry_completion
, Stry_completion
, 2, 3, 0,
590 "Return common substring of all completions of STRING in ALIST.\n\
591 Each car of each element of ALIST is tested to see if it begins with STRING.\n\
592 All that match are compared together; the longest initial sequence\n\
593 common to all matches is returned as a string.\n\
594 If there is no match at all, nil is returned.\n\
595 For an exact match, t is returned.\n\
597 ALIST can be an obarray instead of an alist.\n\
598 Then the print names of all symbols in the obarray are the possible matches.\n\
600 ALIST can also be a function to do the completion itself.\n\
601 It receives three arguments: the values STRING, PREDICATE and nil.\n\
602 Whatever it returns becomes the value of `try-completion'.\n\
604 If optional third argument PREDICATE is non-nil,\n\
605 it is used to test each possible match.\n\
606 The match is a candidate only if PREDICATE returns non-nil.\n\
607 The argument given to PREDICATE is the alist element or the symbol from the obarray.")
608 (string
, alist
, pred
)
609 Lisp_Object string
, alist
, pred
;
611 Lisp_Object bestmatch
, tail
, elt
, eltstring
;
613 int compare
, matchsize
;
614 int list
= CONSP (alist
) || NILP (alist
);
617 Lisp_Object bucket
, zero
, end
, tem
;
618 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
620 CHECK_STRING (string
, 0);
621 if (!list
&& !VECTORP (alist
))
622 return call3 (alist
, string
, pred
, Qnil
);
626 /* If ALIST is not a list, set TAIL just for gc pro. */
631 obsize
= XVECTOR (alist
)->size
;
632 bucket
= XVECTOR (alist
)->contents
[index
];
637 /* Get the next element of the alist or obarray. */
638 /* Exit the loop if the elements are all used up. */
639 /* elt gets the alist element or symbol.
640 eltstring gets the name to check as a completion. */
647 eltstring
= Fcar (elt
);
652 if (XFASTINT (bucket
) != 0)
655 eltstring
= Fsymbol_name (elt
);
656 if (XSYMBOL (bucket
)->next
)
657 XSETSYMBOL (bucket
, XSYMBOL (bucket
)->next
);
659 XFASTINT (bucket
) = 0;
661 else if (++index
>= obsize
)
665 bucket
= XVECTOR (alist
)->contents
[index
];
670 /* Is this element a possible completion? */
672 if (STRINGP (eltstring
)
673 && XSTRING (string
)->size
<= XSTRING (eltstring
)->size
674 && 0 > scmp (XSTRING (eltstring
)->data
, XSTRING (string
)->data
,
675 XSTRING (string
)->size
))
682 /* Ignore this element if it fails to match all the regexps. */
683 for (regexps
= Vcompletion_regexp_list
; CONSP (regexps
);
684 regexps
= XCONS (regexps
)->cdr
)
686 tem
= Fstring_match (XCONS (regexps
)->car
, eltstring
, zero
);
693 /* Ignore this element if there is a predicate
694 and the predicate doesn't like it. */
698 if (EQ (pred
, Qcommandp
))
699 tem
= Fcommandp (elt
);
702 GCPRO4 (tail
, string
, eltstring
, bestmatch
);
703 tem
= call1 (pred
, elt
);
706 if (NILP (tem
)) continue;
709 /* Update computation of how much all possible completions match */
712 if (NILP (bestmatch
))
713 bestmatch
= eltstring
, bestmatchsize
= XSTRING (eltstring
)->size
;
716 compare
= min (bestmatchsize
, XSTRING (eltstring
)->size
);
717 matchsize
= scmp (XSTRING (bestmatch
)->data
,
718 XSTRING (eltstring
)->data
,
722 if (completion_ignore_case
)
724 /* If this is an exact match except for case,
725 use it as the best match rather than one that is not an
726 exact match. This way, we get the case pattern
727 of the actual match. */
728 if ((matchsize
== XSTRING (eltstring
)->size
729 && matchsize
< XSTRING (bestmatch
)->size
)
731 /* If there is more than one exact match ignoring case,
732 and one of them is exact including case,
734 /* If there is no exact match ignoring case,
735 prefer a match that does not change the case
737 ((matchsize
== XSTRING (eltstring
)->size
)
739 (matchsize
== XSTRING (bestmatch
)->size
)
740 && !bcmp (XSTRING (eltstring
)->data
,
741 XSTRING (string
)->data
, XSTRING (string
)->size
)
742 && bcmp (XSTRING (bestmatch
)->data
,
743 XSTRING (string
)->data
, XSTRING (string
)->size
)))
744 bestmatch
= eltstring
;
746 bestmatchsize
= matchsize
;
751 if (NILP (bestmatch
))
752 return Qnil
; /* No completions found */
753 /* If we are ignoring case, and there is no exact match,
754 and no additional text was supplied,
755 don't change the case of what the user typed. */
756 if (completion_ignore_case
&& bestmatchsize
== XSTRING (string
)->size
757 && XSTRING (bestmatch
)->size
> bestmatchsize
)
760 /* Return t if the supplied string is an exact match (counting case);
761 it does not require any change to be made. */
762 if (matchcount
== 1 && bestmatchsize
== XSTRING (string
)->size
763 && !bcmp (XSTRING (bestmatch
)->data
, XSTRING (string
)->data
,
767 XFASTINT (zero
) = 0; /* Else extract the part in which */
768 XFASTINT (end
) = bestmatchsize
; /* all completions agree */
769 return Fsubstring (bestmatch
, zero
, end
);
772 /* Compare exactly LEN chars of strings at S1 and S2,
773 ignoring case if appropriate.
774 Return -1 if strings match,
775 else number of chars that match at the beginning. */
779 register unsigned char *s1
, *s2
;
782 register int l
= len
;
784 if (completion_ignore_case
)
786 while (l
&& DOWNCASE (*s1
++) == DOWNCASE (*s2
++))
791 while (l
&& *s1
++ == *s2
++)
800 DEFUN ("all-completions", Fall_completions
, Sall_completions
, 2, 3, 0,
801 "Search for partial matches to STRING in ALIST.\n\
802 Each car of each element of ALIST is tested to see if it begins with STRING.\n\
803 The value is a list of all the strings from ALIST that match.\n\
804 ALIST can be an obarray instead of an alist.\n\
805 Then the print names of all symbols in the obarray are the possible matches.\n\
807 ALIST can also be a function to do the completion itself.\n\
808 It receives three arguments: the values STRING, PREDICATE and t.\n\
809 Whatever it returns becomes the value of `all-completion'.\n\
811 If optional third argument PREDICATE is non-nil,\n\
812 it is used to test each possible match.\n\
813 The match is a candidate only if PREDICATE returns non-nil.\n\
814 The argument given to PREDICATE is the alist element or the symbol from the obarray.")
815 (string
, alist
, pred
)
816 Lisp_Object string
, alist
, pred
;
818 Lisp_Object tail
, elt
, eltstring
;
819 Lisp_Object allmatches
;
820 int list
= CONSP (alist
) || NILP (alist
);
822 Lisp_Object bucket
, tem
;
823 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
825 CHECK_STRING (string
, 0);
826 if (!list
&& !VECTORP (alist
))
828 return call3 (alist
, string
, pred
, Qt
);
832 /* If ALIST is not a list, set TAIL just for gc pro. */
837 obsize
= XVECTOR (alist
)->size
;
838 bucket
= XVECTOR (alist
)->contents
[index
];
843 /* Get the next element of the alist or obarray. */
844 /* Exit the loop if the elements are all used up. */
845 /* elt gets the alist element or symbol.
846 eltstring gets the name to check as a completion. */
853 eltstring
= Fcar (elt
);
858 if (XFASTINT (bucket
) != 0)
861 eltstring
= Fsymbol_name (elt
);
862 if (XSYMBOL (bucket
)->next
)
863 XSETSYMBOL (bucket
, XSYMBOL (bucket
)->next
);
865 XFASTINT (bucket
) = 0;
867 else if (++index
>= obsize
)
871 bucket
= XVECTOR (alist
)->contents
[index
];
876 /* Is this element a possible completion? */
878 if (STRINGP (eltstring
)
879 && XSTRING (string
)->size
<= XSTRING (eltstring
)->size
880 /* Reject alternatives that start with space
881 unless the input starts with space. */
882 && ((XSTRING (string
)->size
> 0 && XSTRING (string
)->data
[0] == ' ')
883 || XSTRING (eltstring
)->data
[0] != ' ')
884 && 0 > scmp (XSTRING (eltstring
)->data
, XSTRING (string
)->data
,
885 XSTRING (string
)->size
))
892 /* Ignore this element if it fails to match all the regexps. */
893 for (regexps
= Vcompletion_regexp_list
; CONSP (regexps
);
894 regexps
= XCONS (regexps
)->cdr
)
896 tem
= Fstring_match (XCONS (regexps
)->car
, eltstring
, zero
);
903 /* Ignore this element if there is a predicate
904 and the predicate doesn't like it. */
908 if (EQ (pred
, Qcommandp
))
909 tem
= Fcommandp (elt
);
912 GCPRO4 (tail
, eltstring
, allmatches
, string
);
913 tem
= call1 (pred
, elt
);
916 if (NILP (tem
)) continue;
918 /* Ok => put it on the list. */
919 allmatches
= Fcons (eltstring
, allmatches
);
923 return Fnreverse (allmatches
);
926 Lisp_Object Vminibuffer_completion_table
, Qminibuffer_completion_table
;
927 Lisp_Object Vminibuffer_completion_predicate
, Qminibuffer_completion_predicate
;
928 Lisp_Object Vminibuffer_completion_confirm
, Qminibuffer_completion_confirm
;
930 /* This comment supplies the doc string for completing-read,
931 for make-docfile to see. We cannot put this in the real DEFUN
932 due to limits in the Unix cpp.
934 DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 6, 0,
935 "Read a string in the minibuffer, with completion.\n\
936 Args: PROMPT, TABLE, PREDICATE, REQUIRE-MATCH, INITIAL-INPUT, HIST.\n\
937 PROMPT is a string to prompt with; normally it ends in a colon and a space.\n\
938 TABLE is an alist whose elements' cars are strings, or an obarray.\n\
939 PREDICATE limits completion to a subset of TABLE.\n\
940 See `try-completion' and `all-completions' for more details
941 on completion, TABLE, and PREDICATE.\n\
943 If REQUIRE-MATCH is non-nil, the user is not allowed to exit unless\n\
944 the input is (or completes to) an element of TABLE or is null.\n\
945 If it is also not t, Return does not exit if it does non-null completion.\n\
946 If the input is null, `completing-read' returns nil,\n\
947 regardless of the value of REQUIRE-MATCH.\n\
949 If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.\n\
950 If it is (STRING . POSITION), the initial input\n\
951 is STRING, but point is placed POSITION characters into the string.\n\
952 HIST, if non-nil, specifies a history list\n\
953 and optionally the initial position in the list.\n\
954 It can be a symbol, which is the history list variable to use,\n\
955 or it can be a cons cell (HISTVAR . HISTPOS).\n\
956 In that case, HISTVAR is the history list variable to use,\n\
957 and HISTPOS is the initial position (the position in the list\n\
958 which INITIAL-CONTENTS corresponds to).\n\
959 Positions are counted starting from 1 at the beginning of the list.\n\
960 Completion ignores case if the ambient value of\n\
961 `completion-ignore-case' is non-nil."
963 DEFUN ("completing-read", Fcompleting_read
, Scompleting_read
, 2, 6, 0,
964 0 /* See immediately above */)
965 (prompt
, table
, pred
, require_match
, init
, hist
)
966 Lisp_Object prompt
, table
, pred
, require_match
, init
, hist
;
968 Lisp_Object val
, histvar
, histpos
, position
;
970 int count
= specpdl_ptr
- specpdl
;
971 specbind (Qminibuffer_completion_table
, table
);
972 specbind (Qminibuffer_completion_predicate
, pred
);
973 specbind (Qminibuffer_completion_confirm
,
974 EQ (require_match
, Qt
) ? Qnil
: Qt
);
975 last_exact_completion
= Qnil
;
982 position
= Fcdr (init
);
985 CHECK_STRING (init
, 0);
986 if (!NILP (position
))
988 CHECK_NUMBER (position
, 0);
989 /* Convert to distance from end of input. */
990 pos
= XINT (position
) - XSTRING (init
)->size
;
1001 histvar
= Fcar_safe (hist
);
1002 histpos
= Fcdr_safe (hist
);
1005 histvar
= Qminibuffer_history
;
1007 XFASTINT (histpos
) = 0;
1009 val
= read_minibuf (NILP (require_match
)
1010 ? Vminibuffer_local_completion_map
1011 : Vminibuffer_local_must_match_map
,
1012 init
, prompt
, make_number (pos
), 0,
1014 return unbind_to (count
, val
);
1017 /* Temporarily display the string M at the end of the current
1018 minibuffer contents. This is used to display things like
1019 "[No Match]" when the user requests a completion for a prefix
1020 that has no possible completions, and other quick, unobtrusive
1023 temp_echo_area_glyphs (m
)
1027 Lisp_Object oinhibit
;
1028 oinhibit
= Vinhibit_quit
;
1030 /* Clear out any old echo-area message to make way for our new thing. */
1037 Fsit_for (make_number (2), Qnil
, Qnil
);
1039 if (!NILP (Vquit_flag
))
1042 Vunread_command_events
= Fcons (make_number (quit_char
), Qnil
);
1044 Vinhibit_quit
= oinhibit
;
1047 Lisp_Object
Fminibuffer_completion_help ();
1048 Lisp_Object
assoc_for_completion ();
1051 * 0 no possible completion
1052 * 1 was already an exact and unique completion
1053 * 3 was already an exact completion
1054 * 4 completed to an exact completion
1055 * 5 some completion happened
1056 * 6 no completion happened
1061 Lisp_Object completion
, tem
;
1064 struct gcpro gcpro1
, gcpro2
;
1066 completion
= Ftry_completion (Fbuffer_string (), Vminibuffer_completion_table
,
1067 Vminibuffer_completion_predicate
);
1068 last
= last_exact_completion
;
1069 last_exact_completion
= Qnil
;
1071 GCPRO2 (completion
, last
);
1073 if (NILP (completion
))
1076 temp_echo_area_glyphs (" [No match]");
1081 if (EQ (completion
, Qt
)) /* exact and unique match */
1088 tem
= Fstring_equal (completion
, Fbuffer_string());
1089 if (completedp
= NILP (tem
))
1091 Ferase_buffer (); /* Some completion happened */
1092 Finsert (1, &completion
);
1095 /* It did find a match. Do we match some possibility exactly now? */
1096 if (CONSP (Vminibuffer_completion_table
)
1097 || NILP (Vminibuffer_completion_table
))
1098 tem
= assoc_for_completion (Fbuffer_string (),
1099 Vminibuffer_completion_table
);
1100 else if (VECTORP (Vminibuffer_completion_table
))
1102 /* the primitive used by Fintern_soft */
1103 extern Lisp_Object
oblookup ();
1105 tem
= Fbuffer_string ();
1106 /* Bypass intern-soft as that loses for nil */
1107 tem
= oblookup (Vminibuffer_completion_table
,
1108 XSTRING (tem
)->data
, XSTRING (tem
)->size
);
1111 else if (!NILP (Vminibuffer_completion_predicate
))
1112 tem
= call1 (Vminibuffer_completion_predicate
, tem
);
1117 tem
= call3 (Vminibuffer_completion_table
,
1119 Vminibuffer_completion_predicate
,
1124 /* not an exact match */
1129 Fminibuffer_completion_help ();
1131 temp_echo_area_glyphs (" [Next char not unique]");
1134 else if (completedp
)
1139 /* If the last exact completion and this one were the same,
1140 it means we've already given a "Complete but not unique"
1141 message and the user's hit TAB again, so now we give him help. */
1142 last_exact_completion
= completion
;
1145 tem
= Fbuffer_string ();
1146 if (!NILP (Fequal (tem
, last
)))
1147 Fminibuffer_completion_help ();
1153 /* Like assoc but assumes KEY is a string, and ignores case if appropriate. */
1156 assoc_for_completion (key
, list
)
1157 register Lisp_Object key
;
1160 register Lisp_Object tail
;
1162 if (completion_ignore_case
)
1163 key
= Fupcase (key
);
1165 for (tail
= list
; !NILP (tail
); tail
= Fcdr (tail
))
1167 register Lisp_Object elt
, tem
, thiscar
;
1169 if (!CONSP (elt
)) continue;
1170 thiscar
= Fcar (elt
);
1171 if (!STRINGP (thiscar
))
1173 if (completion_ignore_case
)
1174 thiscar
= Fupcase (thiscar
);
1175 tem
= Fequal (thiscar
, key
);
1176 if (!NILP (tem
)) return elt
;
1182 DEFUN ("minibuffer-complete", Fminibuffer_complete
, Sminibuffer_complete
, 0, 0, "",
1183 "Complete the minibuffer contents as far as possible.\n\
1184 Return nil if there is no valid completion, else t.\n\
1185 If no characters can be completed, display a list of possible completions.\n\
1186 If you repeat this command after it displayed such a list,\n\
1187 scroll the window of possible completions.")
1191 Lisp_Object window
, tem
;
1193 /* If the previous command was not this, then mark the completion
1195 if (! EQ (last_command
, this_command
))
1196 Vminibuf_scroll_window
= Qnil
;
1198 window
= Vminibuf_scroll_window
;
1199 /* If there's a fresh completion window with a live buffer,
1200 and this command is repeated, scroll that window. */
1201 if (! NILP (window
) && ! NILP (XWINDOW (window
)->buffer
)
1202 && !NILP (XBUFFER (XWINDOW (window
)->buffer
)->name
))
1204 struct buffer
*obuf
= current_buffer
;
1206 Fset_buffer (XWINDOW (window
)->buffer
);
1207 tem
= Fpos_visible_in_window_p (make_number (ZV
), window
);
1209 /* If end is in view, scroll up to the beginning. */
1210 Fset_window_start (window
, BEGV
, Qnil
);
1212 /* Else scroll down one screen. */
1213 Fscroll_other_window (Qnil
);
1215 set_buffer_internal (obuf
);
1219 i
= do_completion ();
1226 temp_echo_area_glyphs (" [Sole completion]");
1230 temp_echo_area_glyphs (" [Complete, but not unique]");
1237 DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit
,
1238 Sminibuffer_complete_and_exit
, 0, 0, "",
1239 "Complete the minibuffer contents, and maybe exit.\n\
1240 Exit if the name is valid with no completion needed.\n\
1241 If name was completed to a valid match,\n\
1242 a repetition of this command will exit.")
1247 /* Allow user to specify null string */
1251 i
= do_completion ();
1259 if (!NILP (Vminibuffer_completion_confirm
))
1261 temp_echo_area_glyphs (" [Confirm]");
1271 Fthrow (Qexit
, Qnil
);
1275 DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word
, Sminibuffer_complete_word
,
1277 "Complete the minibuffer contents at most a single word.\n\
1278 After one word is completed as much as possible, a space or hyphen\n\
1279 is added, provided that matches some possible completion.\n\
1280 Return nil if there is no valid completion, else t.")
1283 Lisp_Object completion
, tem
;
1285 register unsigned char *completion_string
;
1286 struct gcpro gcpro1
, gcpro2
;
1288 /* We keep calling Fbuffer_string rather than arrange for GC to
1289 hold onto a pointer to one of the strings thus made. */
1291 completion
= Ftry_completion (Fbuffer_string (),
1292 Vminibuffer_completion_table
,
1293 Vminibuffer_completion_predicate
);
1294 if (NILP (completion
))
1297 temp_echo_area_glyphs (" [No match]");
1300 if (EQ (completion
, Qt
))
1303 #if 0 /* How the below code used to look, for reference. */
1304 tem
= Fbuffer_string ();
1305 b
= XSTRING (tem
)->data
;
1306 i
= ZV
- 1 - XSTRING (completion
)->size
;
1307 p
= XSTRING (completion
)->data
;
1309 0 <= scmp (b
, p
, ZV
- 1))
1312 /* Set buffer to longest match of buffer tail and completion head. */
1313 while (0 <= scmp (b
+ i
, p
, ZV
- 1 - i
))
1315 del_range (1, i
+ 1);
1318 #else /* Rewritten code */
1320 register unsigned char *buffer_string
;
1321 int buffer_length
, completion_length
;
1323 tem
= Fbuffer_string ();
1324 GCPRO2 (completion
, tem
);
1325 /* If reading a file name,
1326 expand any $ENVVAR refs in the buffer and in TEM. */
1327 if (EQ (Vminibuffer_completion_table
, Qread_file_name_internal
))
1329 Lisp_Object substituted
;
1330 substituted
= Fsubstitute_in_file_name (tem
);
1331 if (! EQ (substituted
, tem
))
1335 insert_from_string (tem
, 0, XSTRING (tem
)->size
, 0);
1338 buffer_string
= XSTRING (tem
)->data
;
1339 completion_string
= XSTRING (completion
)->data
;
1340 buffer_length
= XSTRING (tem
)->size
; /* ie ZV - BEGV */
1341 completion_length
= XSTRING (completion
)->size
;
1342 i
= buffer_length
- completion_length
;
1343 /* Mly: I don't understand what this is supposed to do AT ALL */
1345 0 <= scmp (buffer_string
, completion_string
, buffer_length
))
1347 /* Set buffer to longest match of buffer tail and completion head. */
1351 while (0 <= scmp (buffer_string
++, completion_string
, buffer_length
--))
1353 del_range (1, i
+ 1);
1358 #endif /* Rewritten code */
1361 /* If completion finds next char not unique,
1362 consider adding a space or a hyphen. */
1363 if (i
== XSTRING (completion
)->size
)
1365 GCPRO1 (completion
);
1366 tem
= Ftry_completion (concat2 (Fbuffer_string (), build_string (" ")),
1367 Vminibuffer_completion_table
,
1368 Vminibuffer_completion_predicate
);
1375 GCPRO1 (completion
);
1377 Ftry_completion (concat2 (Fbuffer_string (), build_string ("-")),
1378 Vminibuffer_completion_table
,
1379 Vminibuffer_completion_predicate
);
1387 /* Now find first word-break in the stuff found by completion.
1388 i gets index in string of where to stop completing. */
1390 completion_string
= XSTRING (completion
)->data
;
1392 for (; i
< XSTRING (completion
)->size
; i
++)
1393 if (SYNTAX (completion_string
[i
]) != Sword
) break;
1394 if (i
< XSTRING (completion
)->size
)
1397 /* If got no characters, print help for user. */
1402 Fminibuffer_completion_help ();
1406 /* Otherwise insert in minibuffer the chars we got */
1409 insert_from_string (completion
, 0, i
, 1);
1413 DEFUN ("display-completion-list", Fdisplay_completion_list
, Sdisplay_completion_list
,
1415 "Display the list of completions, COMPLETIONS, using `standard-output'.\n\
1416 Each element may be just a symbol or string\n\
1417 or may be a list of two strings to be printed as if concatenated.\n\
1418 `standard-output' must be a buffer.\n\
1419 At the end, run the normal hook `completion-setup-hook'.\n\
1420 It can find the completion buffer in `standard-output'.")
1422 Lisp_Object completions
;
1424 register Lisp_Object tail
, elt
;
1427 struct gcpro gcpro1
;
1428 struct buffer
*old
= current_buffer
;
1430 /* Note that (when it matters) every variable
1431 points to a non-string that is pointed to by COMPLETIONS. */
1432 GCPRO1 (completions
);
1434 if (BUFFERP (Vstandard_output
))
1435 set_buffer_internal (XBUFFER (Vstandard_output
));
1437 if (NILP (completions
))
1438 write_string ("There are no possible completions of what you have typed.",
1442 write_string ("Possible completions are:", -1);
1443 for (tail
= completions
, i
= 0; !NILP (tail
); tail
= Fcdr (tail
), i
++)
1445 /* this needs fixing for the case of long completions
1446 and/or narrow windows */
1447 /* Sadly, the window it will appear in is not known
1448 until after the text has been made. */
1451 if (BUFFERP (Vstandard_output
))
1452 Findent_to (make_number (35), make_number (2));
1457 write_string (" ", -1);
1460 while (column
< 35);
1471 if (!BUFFERP (Vstandard_output
))
1474 tem
= Flength (Fcar (elt
));
1475 column
+= XINT (tem
);
1476 tem
= Flength (Fcar (Fcdr (elt
)));
1477 column
+= XINT (tem
);
1479 Fprinc (Fcar (elt
), Qnil
);
1480 Fprinc (Fcar (Fcdr (elt
)), Qnil
);
1484 if (!BUFFERP (Vstandard_output
))
1487 tem
= Flength (elt
);
1488 column
+= XINT (tem
);
1497 if (BUFFERP (Vstandard_output
))
1498 set_buffer_internal (old
);
1500 if (!NILP (Vrun_hooks
))
1501 call1 (Vrun_hooks
, intern ("completion-setup-hook"));
1506 DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help
, Sminibuffer_completion_help
,
1508 "Display a list of possible completions of the current minibuffer contents.")
1511 Lisp_Object completions
;
1513 message ("Making completion list...");
1514 completions
= Fall_completions (Fbuffer_string (),
1515 Vminibuffer_completion_table
,
1516 Vminibuffer_completion_predicate
);
1517 echo_area_glyphs
= 0;
1519 if (NILP (completions
))
1522 temp_echo_area_glyphs (" [No completions]");
1525 internal_with_output_to_temp_buffer ("*Completions*",
1526 Fdisplay_completion_list
,
1527 Fsort (completions
, Qstring_lessp
));
1531 DEFUN ("self-insert-and-exit", Fself_insert_and_exit
, Sself_insert_and_exit
, 0, 0, "",
1532 "Terminate minibuffer input.")
1535 if (INTEGERP (last_command_char
))
1536 internal_self_insert (last_command_char
, 0);
1540 Fthrow (Qexit
, Qnil
);
1543 DEFUN ("exit-minibuffer", Fexit_minibuffer
, Sexit_minibuffer
, 0, 0, "",
1544 "Terminate this minibuffer argument.")
1547 Fthrow (Qexit
, Qnil
);
1550 DEFUN ("minibuffer-depth", Fminibuffer_depth
, Sminibuffer_depth
, 0, 0, 0,
1551 "Return current depth of activations of minibuffer, a nonnegative integer.")
1554 return make_number (minibuf_level
);
1557 DEFUN ("minibuffer-prompt", Fminibuffer_prompt
, Sminibuffer_prompt
, 0, 0, 0,
1558 "Return the prompt string of the currently-active minibuffer.\n\
1559 If no minibuffer is active, return nil.")
1562 return Fcopy_sequence (minibuf_prompt
);
1565 DEFUN ("minibuffer-prompt-width", Fminibuffer_prompt_width
,
1566 Sminibuffer_prompt_width
, 0, 0, 0,
1567 "Return the display width of the minibuffer prompt.")
1571 XFASTINT (width
) = minibuf_prompt_width
;
1575 init_minibuf_once ()
1577 Vminibuffer_list
= Qnil
;
1578 staticpro (&Vminibuffer_list
);
1584 minibuf_prompt
= Qnil
;
1585 staticpro (&minibuf_prompt
);
1587 minibuf_save_list
= Qnil
;
1588 staticpro (&minibuf_save_list
);
1590 Qread_file_name_internal
= intern ("read-file-name-internal");
1591 staticpro (&Qread_file_name_internal
);
1593 Qminibuffer_completion_table
= intern ("minibuffer-completion-table");
1594 staticpro (&Qminibuffer_completion_table
);
1596 Qminibuffer_completion_confirm
= intern ("minibuffer-completion-confirm");
1597 staticpro (&Qminibuffer_completion_confirm
);
1599 Qminibuffer_completion_predicate
= intern ("minibuffer-completion-predicate");
1600 staticpro (&Qminibuffer_completion_predicate
);
1602 staticpro (&last_exact_completion
);
1603 last_exact_completion
= Qnil
;
1605 staticpro (&last_minibuf_string
);
1606 last_minibuf_string
= Qnil
;
1608 Quser_variable_p
= intern ("user-variable-p");
1609 staticpro (&Quser_variable_p
);
1611 Qminibuffer_history
= intern ("minibuffer-history");
1612 staticpro (&Qminibuffer_history
);
1614 Qminibuffer_setup_hook
= intern ("minibuffer-setup-hook");
1615 staticpro (&Qminibuffer_setup_hook
);
1617 Qminibuffer_exit_hook
= intern ("minibuffer-exit-hook");
1618 staticpro (&Qminibuffer_exit_hook
);
1620 DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook
,
1621 "Normal hook run just after entry to minibuffer.");
1622 Vminibuffer_setup_hook
= Qnil
;
1624 DEFVAR_LISP ("minibuffer-exit-hook", &Vminibuffer_exit_hook
,
1625 "Normal hook run just after exit from minibuffer.");
1626 Vminibuffer_exit_hook
= Qnil
;
1628 DEFVAR_BOOL ("completion-auto-help", &auto_help
,
1629 "*Non-nil means automatically provide help for invalid completion input.");
1632 DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case
,
1633 "Non-nil means don't consider case significant in completion.");
1634 completion_ignore_case
= 0;
1636 DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers
,
1637 "*Non-nil means to allow minibuffer commands while in the minibuffer.\n\
1638 More precisely, this variable makes a difference when the minibuffer window\n\
1639 is the selected window. If you are in some other window, minibuffer commands\n\
1640 are allowed even if a minibuffer is active.");
1641 enable_recursive_minibuffers
= 0;
1643 DEFVAR_LISP ("minibuffer-completion-table", &Vminibuffer_completion_table
,
1644 "Alist or obarray used for completion in the minibuffer.\n\
1645 This becomes the ALIST argument to `try-completion' and `all-completion'.\n\
1647 The value may alternatively be a function, which is given three arguments:\n\
1648 STRING, the current buffer contents;\n\
1649 PREDICATE, the predicate for filtering possible matches;\n\
1650 CODE, which says what kind of things to do.\n\
1651 CODE can be nil, t or `lambda'.\n\
1652 nil means to return the best completion of STRING, or nil if there is none.\n\
1653 t means to return a list of all possible completions of STRING.\n\
1654 `lambda' means to return t if STRING is a valid completion as it stands.");
1655 Vminibuffer_completion_table
= Qnil
;
1657 DEFVAR_LISP ("minibuffer-completion-predicate", &Vminibuffer_completion_predicate
,
1658 "Within call to `completing-read', this holds the PREDICATE argument.");
1659 Vminibuffer_completion_predicate
= Qnil
;
1661 DEFVAR_LISP ("minibuffer-completion-confirm", &Vminibuffer_completion_confirm
,
1662 "Non-nil => demand confirmation of completion before exiting minibuffer.");
1663 Vminibuffer_completion_confirm
= Qnil
;
1665 DEFVAR_LISP ("minibuffer-help-form", &Vminibuffer_help_form
,
1666 "Value that `help-form' takes on inside the minibuffer.");
1667 Vminibuffer_help_form
= Qnil
;
1669 DEFVAR_LISP ("minibuffer-history-variable", &Vminibuffer_history_variable
,
1670 "History list symbol to add minibuffer values to.\n\
1671 Each minibuffer output is added with\n\
1672 (set minibuffer-history-variable\n\
1673 (cons STRING (symbol-value minibuffer-history-variable)))");
1674 XFASTINT (Vminibuffer_history_variable
) = 0;
1676 DEFVAR_LISP ("minibuffer-history-position", &Vminibuffer_history_position
,
1677 "Current position of redoing in the history list.");
1678 Vminibuffer_history_position
= Qnil
;
1680 DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise
,
1681 "*Non-nil means entering the minibuffer raises the minibuffer's frame.");
1682 minibuffer_auto_raise
= 0;
1684 DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list
,
1685 "List of regexps that should restrict possible completions.");
1686 Vcompletion_regexp_list
= Qnil
;
1688 defsubr (&Sread_from_minibuffer
);
1689 defsubr (&Seval_minibuffer
);
1690 defsubr (&Sread_minibuffer
);
1691 defsubr (&Sread_string
);
1692 defsubr (&Sread_command
);
1693 defsubr (&Sread_variable
);
1694 defsubr (&Sread_buffer
);
1695 defsubr (&Sread_no_blanks_input
);
1696 defsubr (&Sminibuffer_depth
);
1697 defsubr (&Sminibuffer_prompt
);
1698 defsubr (&Sminibuffer_prompt_width
);
1700 defsubr (&Stry_completion
);
1701 defsubr (&Sall_completions
);
1702 defsubr (&Scompleting_read
);
1703 defsubr (&Sminibuffer_complete
);
1704 defsubr (&Sminibuffer_complete_word
);
1705 defsubr (&Sminibuffer_complete_and_exit
);
1706 defsubr (&Sdisplay_completion_list
);
1707 defsubr (&Sminibuffer_completion_help
);
1709 defsubr (&Sself_insert_and_exit
);
1710 defsubr (&Sexit_minibuffer
);
1716 initial_define_key (Vminibuffer_local_map
, Ctl ('g'),
1717 "abort-recursive-edit");
1718 initial_define_key (Vminibuffer_local_map
, Ctl ('m'),
1720 initial_define_key (Vminibuffer_local_map
, Ctl ('j'),
1723 initial_define_key (Vminibuffer_local_ns_map
, Ctl ('g'),
1724 "abort-recursive-edit");
1725 initial_define_key (Vminibuffer_local_ns_map
, Ctl ('m'),
1727 initial_define_key (Vminibuffer_local_ns_map
, Ctl ('j'),
1730 initial_define_key (Vminibuffer_local_ns_map
, ' ',
1732 initial_define_key (Vminibuffer_local_ns_map
, '\t',
1734 initial_define_key (Vminibuffer_local_ns_map
, '?',
1735 "self-insert-and-exit");
1737 initial_define_key (Vminibuffer_local_completion_map
, Ctl ('g'),
1738 "abort-recursive-edit");
1739 initial_define_key (Vminibuffer_local_completion_map
, Ctl ('m'),
1741 initial_define_key (Vminibuffer_local_completion_map
, Ctl ('j'),
1744 initial_define_key (Vminibuffer_local_completion_map
, '\t',
1745 "minibuffer-complete");
1746 initial_define_key (Vminibuffer_local_completion_map
, ' ',
1747 "minibuffer-complete-word");
1748 initial_define_key (Vminibuffer_local_completion_map
, '?',
1749 "minibuffer-completion-help");
1751 initial_define_key (Vminibuffer_local_must_match_map
, Ctl ('g'),
1752 "abort-recursive-edit");
1753 initial_define_key (Vminibuffer_local_must_match_map
, Ctl ('m'),
1754 "minibuffer-complete-and-exit");
1755 initial_define_key (Vminibuffer_local_must_match_map
, Ctl ('j'),
1756 "minibuffer-complete-and-exit");
1757 initial_define_key (Vminibuffer_local_must_match_map
, '\t',
1758 "minibuffer-complete");
1759 initial_define_key (Vminibuffer_local_must_match_map
, ' ',
1760 "minibuffer-complete-word");
1761 initial_define_key (Vminibuffer_local_must_match_map
, '?',
1762 "minibuffer-completion-help");