1 ;; complete.el -- partial completion mechanism plus other goodies.
3 ;; Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
5 ;; Author: Dave Gillespie <daveg@synaptics.com>
7 ;; Special thanks to Hallvard Furuseth for his many ideas and contributions.
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to
23 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
27 ;; Extended completion for the Emacs minibuffer.
29 ;; The basic idea is that the command name or other completable text is
30 ;; divided into words and each word is completed separately, so that
31 ;; "M-x p-b" expands to "M-x print-buffer". If the entry is ambiguous
32 ;; each word is completed as much as possible and then the cursor is
33 ;; left at the first position where typing another letter will resolve
36 ;; Word separators for this purpose are hyphen, space, and period.
37 ;; These would most likely occur in command names, Info menu items,
38 ;; and file names, respectively. But all word separators are treated
39 ;; alike at all times.
41 ;; This completion package replaces the old-style completer's key
42 ;; bindings for TAB, SPC, RET, and `?'. The old completer is still
43 ;; available on the Meta versions of those keys. If you set
44 ;; PC-meta-flag to nil, the old completion keys will be left alone
45 ;; and the partial completer will use the Meta versions of the keys.
48 ;; Usage: Load this file. Now, during completable minibuffer entry,
50 ;; TAB means to do a partial completion;
51 ;; SPC means to do a partial complete-word;
52 ;; RET means to do a partial complete-and-exit;
53 ;; ? means to do a partial completion-help.
55 ;; If you set PC-meta-flag to nil, then TAB, SPC, RET, and ? perform
56 ;; original Emacs completions, and M-TAB etc. do partial completion.
57 ;; To do this, put the command,
59 ;; (setq PC-meta-flag nil)
61 ;; in your .emacs file. To load partial completion automatically, put
65 ;; in your .emacs file, too. Things will be faster if you byte-compile
66 ;; this file when you install it.
68 ;; As an extra feature, in cases where RET would not normally
69 ;; complete (such as `C-x b'), the M-RET key will always do a partial
70 ;; complete-and-exit. Thus `C-x b f.c RET' will select or create a
71 ;; buffer called "f.c", but `C-x b f.c M-RET' will select the existing
72 ;; buffer whose name matches that pattern (perhaps "filing.c").
73 ;; (PC-meta-flag does not affect this behavior; M-RET used to be
74 ;; undefined in this situation.)
76 ;; The regular M-TAB (lisp-complete-symbol) command also supports
77 ;; partial completion in this package.
79 ;; This package also contains a wildcard feature for C-x C-f (find-file).
80 ;; For example, `C-x C-f *.c RET' loads all .c files at once, exactly
81 ;; as if you had typed C-x C-f separately for each file. Completion
82 ;; is supported in connection with wildcards. Currently only the `*'
83 ;; wildcard character works.
85 ;; File name completion does not do partial completion of directories
86 ;; on the path, e.g., "/u/b/f" will not complete to "/usr/bin/foo",
87 ;; but you can put *'s in the path to accomplish this: "/u*/b*/f".
88 ;; Stars are required for performance reasons.
90 ;; In addition, this package includes a feature for accessing include
91 ;; files. For example, `C-x C-f <sys/time.h> RET' reads the file
92 ;; /usr/include/sys/time.h. The variable PC-include-file-path is a
93 ;; list of directories in which to search for include files. Completion
94 ;; is supported in include file names.
99 (defvar PC-meta-flag t
100 "*If nil, TAB does normal Emacs completion and M-TAB does Partial Completion.
101 If t, TAB does Partial Completion and M-TAB does normal completion.")
104 (defvar PC-word-delimiters
"-_. "
105 "*A string of characters which are to be treated as word delimiters
106 by the Partial Completion system.
108 Some arcane rules: If `]' is in this string it must come first.
109 If `^' is in this string it must NOT come first. If `-' is in this
110 string, it must come first or right after `]'. In other words, if
111 S is this string, then `[S]' must be a legal Emacs regular expression
112 (not containing character ranges like `a-z').")
115 (defvar PC-first-char
'x
116 "*If t, first character of a string to be completed is always taken literally.
117 If nil, word delimiters are handled even if they appear as first character.
118 This controls whether \".e\" matches \".e*\" (t) or \"*.e*\" (nil).
119 If neither nil nor t, first char is literal only for filename completion.")
122 (defvar PC-include-file-path
'("/usr/include")
123 "*List of directories in which to look for include files.
124 If this is nil, uses the colon-separated path in $INCPATH instead.")
127 (defvar PC-disable-wildcards nil
128 "Set this to non-nil to disable wildcard support in \\[find-file].")
130 (defvar PC-disable-includes nil
131 "Set this to non-nil to disable include-file support in \\[find-file].")
134 (defvar PC-default-bindings t
135 "Set this to nil to suppress the default partial completion key bindings.")
137 (if PC-default-bindings
(progn
138 (define-key minibuffer-local-completion-map
"\t" 'PC-complete
)
139 (define-key minibuffer-local-completion-map
" " 'PC-complete-word
)
140 (define-key minibuffer-local-completion-map
"?" 'PC-completion-help
)
142 (define-key minibuffer-local-completion-map
"\e\t" 'PC-complete
)
143 (define-key minibuffer-local-completion-map
"\e " 'PC-complete-word
)
144 (define-key minibuffer-local-completion-map
"\e\r" 'PC-force-complete-and-exit
)
145 (define-key minibuffer-local-completion-map
"\e\n" 'PC-force-complete-and-exit
)
146 (define-key minibuffer-local-completion-map
"\e?" 'PC-completion-help
)
148 (define-key minibuffer-local-must-match-map
"\t" 'PC-complete
)
149 (define-key minibuffer-local-must-match-map
" " 'PC-complete-word
)
150 (define-key minibuffer-local-must-match-map
"\r" 'PC-complete-and-exit
)
151 (define-key minibuffer-local-must-match-map
"\n" 'PC-complete-and-exit
)
152 (define-key minibuffer-local-must-match-map
"?" 'PC-completion-help
)
154 (define-key minibuffer-local-must-match-map
"\e\t" 'PC-complete
)
155 (define-key minibuffer-local-must-match-map
"\e " 'PC-complete-word
)
156 (define-key minibuffer-local-must-match-map
"\e\r" 'PC-complete-and-exit
)
157 (define-key minibuffer-local-must-match-map
"\e\n" 'PC-complete-and-exit
)
158 (define-key minibuffer-local-must-match-map
"\e?" 'PC-completion-help
)
160 (define-key global-map
"\e\t" 'PC-lisp-complete-symbol
)
164 (defun PC-complete ()
165 "Like minibuffer-complete, but allows \"b--di\"-style abbreviations.
166 For example, \"M-x b--di\" would match `byte-recompile-directory', or any
167 name which consists of three or more words, the first beginning with \"b\"
168 and the third beginning with \"di\".
170 The pattern \"b--d\" is ambiguous for `byte-recompile-directory' and
171 `beginning-of-defun', so this would produce a list of completions
172 just like when normal Emacs completions are ambiguous.
174 Word-delimiters for the purposes of Partial Completion are \"-\", \"_\",
177 (if (PC-was-meta-key)
178 (minibuffer-complete)
179 (PC-do-completion nil
)))
182 (defun PC-complete-word ()
183 "Like `minibuffer-complete-word', but allows \"b--di\"-style abbreviations.
184 See `PC-complete' for details.
185 This can be bound to other keys, like `-' and `.', if you wish."
187 (if (eq (PC-was-meta-key) PC-meta-flag
)
188 (if (eq last-command-char ?
)
189 (minibuffer-complete-word)
190 (self-insert-command 1))
191 (self-insert-command 1)
193 (PC-do-completion 'word
))))
196 (defun PC-complete-space ()
197 "Like `minibuffer-complete-word', but allows \"b--di\"-style abbreviations.
198 See `PC-complete' for details.
199 This is suitable for binding to other keys which should act just like SPC."
201 (if (eq (PC-was-meta-key) PC-meta-flag
)
202 (minibuffer-complete-word)
205 (PC-do-completion 'word
))))
208 (defun PC-complete-and-exit ()
209 "Like `minibuffer-complete-and-exit', but allows \"b--di\"-style abbreviations.
210 See `PC-complete' for details."
212 (if (eq (PC-was-meta-key) PC-meta-flag
)
213 (minibuffer-complete-and-exit)
214 (PC-do-complete-and-exit)))
216 (defun PC-force-complete-and-exit ()
217 "Like `minibuffer-complete-and-exit', but allows \"b--di\"-style abbreviations.
218 See `PC-complete' for details."
220 (let ((minibuffer-completion-confirm nil
))
221 (PC-do-complete-and-exit)))
223 (defun PC-do-complete-and-exit ()
224 (if (= (buffer-size) 0) ; Duplicate the "bug" that Info-menu relies on...
226 (let ((flag (PC-do-completion 'exit
)))
228 (if (or (eq flag
'complete
)
229 (not minibuffer-completion-confirm
))
231 (PC-temp-minibuffer-message " (Confirm)"))))))
234 (defun PC-completion-help ()
235 "Like `minibuffer-completion-help', but allows \"b--di\"-style abbreviations.
236 See `PC-complete' for details."
238 (if (eq (PC-was-meta-key) PC-meta-flag
)
239 (minibuffer-completion-help)
240 (PC-do-completion 'help
)))
242 (defun PC-was-meta-key ()
243 (or (/= (length (this-command-keys)) 1)
244 (let ((key (aref (this-command-keys) 0)))
247 (not (null (memq 'meta
(event-modifiers key
))))))))
250 (defvar PC-ignored-extensions
'empty-cache
)
251 (defvar PC-delims
'empty-cache
)
252 (defvar PC-ignored-regexp nil
)
253 (defvar PC-word-failed-flag nil
)
254 (defvar PC-delim-regex nil
)
255 (defvar PC-ndelims-regex nil
)
256 (defvar PC-delims-list nil
)
258 (defun PC-do-completion (&optional mode beg end
)
259 (or beg
(setq beg
(point-min)))
260 (or end
(setq end
(point-max)))
261 (let* ((table minibuffer-completion-table
)
262 (pred minibuffer-completion-predicate
)
263 (filename (memq table
'(read-file-name-internal
264 read-directory-name-internal
)))
266 (str (buffer-substring beg end
))
267 (incname (and filename
(string-match "<\\([^\"<>]*\\)>?$" str
)))
274 (case-fold-search completion-ignore-case
))
276 ;; Check if buffer contents can already be considered complete
277 (if (and (eq mode
'exit
)
278 (PC-is-complete-p str table pred
))
281 ;; Do substitutions in directory names
283 (not (equal str
(setq p
(substitute-in-file-name str
))))
285 (delete-region beg end
)
287 (setq str p end
(+ beg
(length str
)))))
289 ;; Prepare various delimiter strings
290 (or (equal PC-word-delimiters PC-delims
)
291 (setq PC-delims PC-word-delimiters
292 PC-delim-regex
(concat "[" PC-delims
"]")
293 PC-ndelims-regex
(concat "[^" PC-delims
"]*")
294 PC-delims-list
(append PC-delims nil
)))
296 ;; Look for wildcard expansions in directory name
298 (string-match "\\*.*/" str
)
301 (setq p
(1+ (string-match "/[^/]*\\'" pat
)))
302 (while (setq p
(string-match PC-delim-regex pat p
))
303 (setq pat
(concat (substring pat
0 p
)
307 (setq files
(PC-expand-many-files (concat pat
"*")))
309 (let ((dir (file-name-directory (car files
)))
311 (while (and (setq p
(cdr p
))
312 (equal dir
(file-name-directory (car p
)))))
314 (setq filename nil table nil pred nil
316 (delete-region beg end
)
317 (setq str
(concat dir
(file-name-nondirectory str
)))
319 (setq end
(+ beg
(length str
)))))
320 (setq filename nil table nil pred nil
))))
322 ;; Strip directory name if appropriate
325 (setq basestr
(substring str incname
)
326 dirname
(substring str
0 incname
))
327 (setq basestr
(file-name-nondirectory str
)
328 dirname
(file-name-directory str
)))
331 ;; Convert search pattern to a standard regular expression
332 (setq regex
(regexp-quote basestr
)
333 offset
(if (and (> (length regex
) 0)
334 (not (eq (aref basestr
0) ?\
*))
335 (or (eq PC-first-char t
)
336 (and PC-first-char filename
))) 1 0)
338 (while (setq p
(string-match PC-delim-regex regex p
))
339 (if (eq (aref regex p
) ?
)
340 (setq regex
(concat (substring regex
0 p
)
343 (substring regex
(1+ p
)))
344 p
(+ p
(length PC-ndelims-regex
) (length PC-delim-regex
)))
345 (let ((bump (if (memq (aref regex p
)
346 '(?$ ?^ ?\. ?
* ?
+ ?? ?
[ ?
] ?
\\))
348 (setq regex
(concat (substring regex
0 (+ p bump
))
350 (substring regex
(+ p bump
)))
351 p
(+ p
(length PC-ndelims-regex
) 1)))))
354 (while (setq p
(string-match "\\\\\\*" regex p
))
355 (setq regex
(concat (substring regex
0 p
)
357 (substring regex
(+ p
2))))))
358 ;;(setq the-regex regex)
359 (setq regex
(concat "\\`" regex
))
361 ;; Find an initial list of possible completions
362 (if (not (setq p
(string-match (concat PC-delim-regex
363 (if filename
"\\|\\*" ""))
365 (+ (length dirname
) offset
))))
367 ;; Minibuffer contains no hyphens -- simple case!
368 (setq poss
(all-completions str
372 ;; Use all-completions to do an initial cull. This is a big win,
373 ;; since all-completions is written in C!
374 (let ((compl (all-completions (substring str
0 p
)
379 (and (string-match regex
(car p
))
380 (setq poss
(cons (car p
) poss
)))
383 ;; Now we have a list of possible completions
386 ;; No valid completions found
388 (if (and (eq mode
'word
)
389 (not PC-word-failed-flag
))
390 (let ((PC-word-failed-flag t
))
391 (delete-backward-char 1)
392 (PC-do-completion 'word
))
394 (PC-temp-minibuffer-message (if ambig
395 " (Ambiguous dir name)"
401 ;; More than one valid completion found
402 ((or (cdr (setq helpposs poss
))
403 (memq mode
'(help word
)))
405 ;; Handle completion-ignored-extensions
407 (not (eq mode
'help
))
410 ;; Build a regular expression representing the extensions list
411 (or (equal completion-ignored-extensions PC-ignored-extensions
)
412 (setq PC-ignored-regexp
416 (setq PC-ignored-extensions
417 completion-ignored-extensions
)
421 ;; Check if there are any without an ignored extension
424 (or (string-match PC-ignored-regexp
(car p2
))
425 (setq p
(cons (car p2
) p
)))
428 ;; If there are "good" names, use them
429 (and p
(setq poss p
))))
431 ;; Is the actual string one of the possible completions?
432 (setq p
(and (not (eq mode
'help
)) poss
))
434 (not (equal (car p
) basestr
)))
440 (PC-temp-minibuffer-message " (Complete, but not unique)"))
443 ;; If ambiguous, try for a partial completion
449 ;; Check if next few letters are the same in all cases
450 (if (and (not (eq mode
'help
))
451 (setq prefix
(try-completion "" (mapcar 'list poss
))))
454 (setq prefix
(PC-chop-word prefix basestr
)))
455 (goto-char (+ beg
(length dirname
)))
458 (while (< i
(length prefix
))
459 (if (and (< (point) end
)
463 (if (and (< (point) end
)
464 (or (and (looking-at " ")
465 (memq (aref prefix i
)
467 (eq (downcase (aref prefix i
))
473 (and filename
(looking-at "\\*")
476 (setq end
(1- end
))))
478 (insert (substring prefix i
(1+ i
)))
481 (or pt
(equal (point) beg
)
483 (looking-at PC-delim-regex
))
484 (setq skip
(concat skip
485 (regexp-quote prefix
)
487 prefix
(try-completion
493 (and (string-match skip x
)
498 (or (> i
0) (> (length prefix
) 0))
499 (or (not (eq mode
'word
))
500 (and first
(> (length prefix
) 0)
502 prefix
(substring prefix
0 1))))))
503 (goto-char (if (eq mode
'word
) end
506 (if (and (eq mode
'word
)
507 (not PC-word-failed-flag
))
511 ;; We changed it... would it be complete without the space?
512 (if (PC-is-complete-p (buffer-substring 1 (1- end
))
514 (delete-region (1- end
) end
)))
518 ;; We changed it... enough to be complete?
520 (PC-is-complete-p (buffer-string) table pred
))
522 ;; If totally ambiguous, display a list of completions
523 (if (or completion-auto-help
525 (with-output-to-temp-buffer " *Completions*"
526 (display-completion-list (sort helpposs
'string-lessp
)))
527 (PC-temp-minibuffer-message " (Next char not unique)"))
530 ;; Only one possible completion
532 (if (equal basestr
(car poss
))
534 (PC-temp-minibuffer-message " (Sole completion)"))
535 (delete-region beg end
)
537 (substitute-in-file-name (concat dirname
(car poss
)))
542 (defun PC-is-complete-p (str table pred
)
543 (let ((res (if (listp table
)
546 (or (equal str
"nil") ; heh, heh, heh
547 (intern-soft str table
))
548 (funcall table str pred
'lambda
)))))
551 (and (not (listp table
)) (not (vectorp table
)))
555 (defun PC-chop-word (new old
)
558 (while (and (setq i
(string-match PC-delim-regex old
(1+ i
)))
559 (setq j
(string-match PC-delim-regex new
(1+ j
)))))
561 (or (not PC-word-failed-flag
)
562 (setq j
(string-match PC-delim-regex new
(1+ j
)))))
563 (substring new
0 (1+ j
))
566 (defvar PC-not-minibuffer nil
)
568 (defun PC-temp-minibuffer-message (m)
569 "A Lisp version of `temp_minibuffer_message' from minibuf.c."
570 (if PC-not-minibuffer
575 (if (fboundp 'temp-minibuffer-message
)
576 (temp-minibuffer-message m
)
577 (let ((savemax (point-max)))
579 (goto-char (point-max))
581 (let ((inhibit-quit t
))
583 (delete-region savemax
(point-max))
586 unread-command-char
7)))))))
589 (defun PC-lisp-complete-symbol ()
590 "Perform completion on Lisp symbol preceding point.
591 That symbol is compared against the symbols that exist
592 and any additional characters determined by what is there
594 If the symbol starts just after an open-parenthesis,
595 only symbols with function definitions are considered.
596 Otherwise, all symbols with function definitions, values
597 or properties are considered."
600 (buffer-syntax (syntax-table))
603 (if lisp-mode-syntax-table
604 (set-syntax-table lisp-mode-syntax-table
))
606 (while (= (char-syntax (following-char)) ?
\')
609 (set-syntax-table buffer-syntax
)))
610 (minibuffer-completion-table obarray
)
611 (minibuffer-completion-predicate
612 (if (eq (char-after (1- beg
)) ?\
()
614 (function (lambda (sym)
615 (or (boundp sym
) (fboundp sym
)
616 (symbol-plist sym
))))))
617 (PC-not-minibuffer t
))
618 (PC-do-completion nil beg end
)))
621 ;;; Wildcards in `C-x C-f' command. This is independent from the main
622 ;;; completion code, except for `PC-expand-many-files' which is called
623 ;;; when "*"'s are found in the path during filename completion. (The
624 ;;; above completion code always understands "*"'s, except in file paths,
625 ;;; without relying on the following code.)
627 (defvar PC-many-files-list nil
)
629 (defun PC-try-load-many-files ()
630 (if (string-match "\\*" buffer-file-name
)
631 (let* ((pat buffer-file-name
)
632 (files (PC-expand-many-files pat
))
635 (kill-buffer (current-buffer))
637 (error "No matching files"))
638 (save-window-excursion
639 (while (setq next
(cdr next
))
640 (let ((buf (find-file-noselect (car next
))))
641 (switch-to-buffer buf
))))
642 ;; This modifies the "buf" variable inside find-file-noselect.
643 (setq buf
(get-file-buffer first
))
645 nil
; should do verify-visited-file-modtime stuff.
646 (setq filename first
)
647 (setq buf
(create-file-buffer filename
))
650 (insert-file-contents filename t
))
652 (setq PC-many-files-list
(mapconcat
653 (if (string-match "\\*.*/" pat
)
655 'file-name-nondirectory
)
657 find-file-hooks
(cons 'PC-after-load-many-files
659 ;; This modifies the "error" variable inside find-file-noselect.
664 (defun PC-after-load-many-files ()
665 (setq find-file-hooks
(delq 'PC-after-load-many-files find-file-hooks
))
666 (message "Also loaded %s." PC-many-files-list
))
668 (defun PC-expand-many-files (name)
670 (set-buffer (generate-new-buffer " *Glob Output*"))
672 (shell-command (concat "echo " name
) t
)
673 (goto-char (point-min))
674 (if (looking-at ".*No match")
677 (while (search-forward " " nil t
)
678 (delete-backward-char 1)
680 (goto-char (point-max))
681 (delete-backward-char 1)
683 (goto-char (point-min))
684 (let ((files (read (current-buffer))))
685 (kill-buffer (current-buffer))
688 (or PC-disable-wildcards
689 (memq 'PC-try-load-many-files find-file-not-found-hooks
)
690 (setq find-file-not-found-hooks
(cons 'PC-try-load-many-files
691 find-file-not-found-hooks
)))
695 ;;; Facilities for loading C header files. This is independent from the
696 ;;; main completion code. See also the variable `PC-include-file-path'
697 ;;; at top of this file.
699 (defun PC-look-for-include-file ()
700 (if (string-match "[\"<]\\([^\"<>]*\\)[\">]?$" (buffer-file-name))
701 (let ((name (substring (buffer-file-name)
702 (match-beginning 1) (match-end 1)))
703 (punc (aref (buffer-file-name) (match-beginning 0)))
706 (kill-buffer (current-buffer))
709 (set-buffer (car (buffer-list)))
713 "[ \t]*#[ \t]*include[ \t]+[<\"]\\(.+\\)[>\"][ \t]*[\n/]")
714 (setq name
(buffer-substring (match-beginning 1)
716 punc
(char-after (1- (match-beginning 1))))
717 ;; Suggested by Frank Siebenlist:
719 "[ \t]*([ \t]*load[ \t]+\"\\([^\"]+\\)\"")
721 "[ \t]*([ \t]*load-library[ \t]+\"\\([^\"]+\\)\"")
723 "[ \t]*([ \t]*require[ \t]+'\\([^\t )]+\\)[\t )]"))
725 (setq name
(buffer-substring (match-beginning 1)
729 (if (string-match "\\.elc$" name
)
730 (setq name
(substring name
0 -
1))
731 (or (string-match "\\.el$" name
)
732 (setq name
(concat name
".el")))))
733 (error "Not on an #include line"))))))
734 (or (string-match "\\.[a-zA-Z0-9]+$" name
)
735 (setq name
(concat name
".h")))
737 (let ((path (or path
(PC-include-file-path))))
740 (concat (file-name-as-directory (car path
))
742 (setq path
(cdr path
)))
744 (setq name
(concat (file-name-as-directory (car path
)) name
))
745 (error "No such include file: <%s>" name
)))
746 (let ((dir (save-excursion
747 (set-buffer (car (buffer-list)))
749 (if (file-exists-p (concat dir name
))
750 (setq name
(concat dir name
))
751 (error "No such include file: \"%s\"" name
))))
752 (setq new-buf
(get-file-buffer name
))
754 ;; no need to verify last-modified time for this!
756 (setq new-buf
(create-file-buffer name
))
759 (insert-file-contents name t
))
766 (defun PC-include-file-path ()
767 (or PC-include-file-path
768 (let ((env (getenv "INCPATH"))
771 (or env
(error "No include file path specified"))
772 (while (setq pos
(string-match ":[^:]+$" env
))
773 (setq path
(cons (substring env
(1+ pos
)) path
)
774 env
(substring env
0 pos
)))
777 ;;; This is adapted from lib-complete.el, by Mike Williams.
778 (defun PC-include-file-all-completions (file search-path
&optional full
)
779 "Return all completions for FILE in any directory on SEARCH-PATH.
780 If optional third argument FULL is non-nil, returned pathnames should be
781 absolute rather than relative to some directory on the SEARCH-PATH."
783 (mapcar '(lambda (dir)
784 (if dir
(file-name-as-directory dir
) default-directory
))
786 (if (file-name-absolute-p file
)
787 ;; It's an absolute file name, so don't need search-path
789 (setq file
(expand-file-name file
))
790 (file-name-all-completions
791 (file-name-nondirectory file
) (file-name-directory file
)))
792 (let ((subdir (file-name-directory file
))
793 (ndfile (file-name-nondirectory file
))
795 ;; Append subdirectory part to each element of search-path
798 (mapcar '(lambda (dir) (concat dir subdir
))
801 ;; Make list of completions in each directory on search-path
803 (let* ((dir (car search-path
))
804 (subdir (if full dir subdir
)))
805 (if (file-directory-p dir
)
809 (mapcar '(lambda (file) (concat subdir file
))
810 (file-name-all-completions ndfile
813 (setq search-path
(cdr search-path
))))
814 ;; Compress out duplicates while building complete list (slloooow!)
815 (let ((sorted (sort (apply 'nconc file-lists
)
816 '(lambda (x y
) (not (string-lessp x y
)))))
819 (if (equal (car sorted
) (car compressed
)) nil
820 (setq compressed
(cons (car sorted
) compressed
)))
821 (setq sorted
(cdr sorted
)))
824 (defvar PC-old-read-file-name-internal nil
)
826 (defun PC-read-include-file-name-internal (string dir action
)
827 (if (string-match "<\\([^\"<>]*\\)>?$" string
)
828 (let* ((name (substring string
(match-beginning 1) (match-end 1)))
829 (str2 (substring string
(match-beginning 0)))
831 (mapcar (function (lambda (x) (list (format "<%s>" x
))))
832 (PC-include-file-all-completions
833 name
(PC-include-file-path)))))
835 ((not completion-table
) nil
)
836 ((eq action nil
) (try-completion str2 completion-table nil
))
837 ((eq action t
) (all-completions str2 completion-table nil
))
839 (eq (try-completion str2 completion-table nil
) t
))))
840 (funcall PC-old-read-file-name-internal string dir action
)))
842 (or PC-disable-includes
843 (memq 'PC-look-for-include-file find-file-not-found-hooks
)
844 (setq find-file-not-found-hooks
(cons 'PC-look-for-include-file
845 find-file-not-found-hooks
)))
847 (or PC-disable-includes
848 PC-old-read-file-name-internal
850 (setq PC-old-read-file-name-internal
851 (symbol-function 'read-file-name-internal
))
852 (fset 'read-file-name-internal
'PC-read-include-file-name-internal
)))