--- /dev/null
+;; complete.el -- partial completion mechanism plus other goodies.
+
+;; Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+
+;; Author: Dave Gillespie <daveg@synaptics.com>
+;; Version: 2.02
+;; Special thanks to Hallvard Furuseth for his many ideas and contributions.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY. No author or distributor
+;; accepts responsibility to anyone for the consequences of using it
+;; or for whether it serves any particular purpose or works at all,
+;; unless he says so in writing. Refer to the GNU Emacs General Public
+;; License for full details.
+
+;; Everyone is granted permission to copy, modify and redistribute
+;; GNU Emacs, but only under the conditions described in the
+;; GNU Emacs General Public License. A copy of this license is
+;; supposed to have been given to you along with GNU Emacs so you
+;; can know your rights and responsibilities. It should be in a
+;; file named COPYING. Among other things, the copyright notice
+;; and this notice must be preserved on all copies.
+
+
+;; Commentary:
+
+;; Extended completion for the Emacs minibuffer.
+;;
+;; The basic idea is that the command name or other completable text is
+;; divided into words and each word is completed separately, so that
+;; "M-x p-b" expands to "M-x print-buffer". If the entry is ambiguous
+;; each word is completed as much as possible and then the cursor is
+;; left at the first position where typing another letter will resolve
+;; the ambiguity.
+;;
+;; Word separators for this purpose are hyphen, space, and period.
+;; These would most likely occur in command names, Info menu items,
+;; and file names, respectively. But all word separators are treated
+;; alike at all times.
+;;
+;; This completion package replaces the old-style completer's key
+;; bindings for TAB, SPC, RET, and `?'. The old completer is still
+;; available on the Meta versions of those keys. If you set
+;; PC-meta-flag to nil, the old completion keys will be left alone
+;; and the partial completer will use the Meta versions of the keys.
+
+
+;; Usage: Load this file. Now, during completable minibuffer entry,
+;;
+;; TAB means to do a partial completion;
+;; SPC means to do a partial complete-word;
+;; RET means to do a partial complete-and-exit;
+;; ? means to do a partial completion-help.
+;;
+;; If you set PC-meta-flag to nil, then TAB, SPC, RET, and ? perform
+;; original Emacs completions, and M-TAB etc. do partial completion.
+;; To do this, put the command,
+;;
+;; (setq PC-meta-flag nil)
+;;
+;; in your .emacs file. To load partial completion automatically, put
+;;
+;; (load "complete")
+;;
+;; in your .emacs file, too. Things will be faster if you byte-compile
+;; this file when you install it.
+;;
+;; As an extra feature, in cases where RET would not normally
+;; complete (such as `C-x b'), the M-RET key will always do a partial
+;; complete-and-exit. Thus `C-x b f.c RET' will select or create a
+;; buffer called "f.c", but `C-x b f.c M-RET' will select the existing
+;; buffer whose name matches that pattern (perhaps "filing.c").
+;; (PC-meta-flag does not affect this behavior; M-RET used to be
+;; undefined in this situation.)
+;;
+;; The regular M-TAB (lisp-complete-symbol) command also supports
+;; partial completion in this package.
+
+;; This package also contains a wildcard feature for C-x C-f (find-file).
+;; For example, `C-x C-f *.c RET' loads all .c files at once, exactly
+;; as if you had typed C-x C-f separately for each file. Completion
+;; is supported in connection with wildcards. Currently only the `*'
+;; wildcard character works.
+
+;; File name completion does not do partial completion of directories
+;; on the path, e.g., "/u/b/f" will not complete to "/usr/bin/foo",
+;; but you can put *'s in the path to accomplish this: "/u*/b*/f".
+;; Stars are required for performance reasons.
+
+;; In addition, this package includes a feature for accessing include
+;; files. For example, `C-x C-f <sys/time.h> RET' reads the file
+;; /usr/include/sys/time.h. The variable PC-include-file-path is a
+;; list of directories in which to search for include files. Completion
+;; is supported in include file names.
+
+
+;; Code:
+
+(defvar PC-meta-flag t
+ "*If nil, TAB does normal Emacs completion and M-TAB does Partial Completion.
+If t, TAB does Partial Completion and M-TAB does normal completion.")
+
+
+(defvar PC-word-delimiters "-_. "
+ "*A string of characters which are to be treated as word delimiters
+by the Partial Completion system.
+
+Some arcane rules: If `]' is in this string it must come first.
+If `^' is in this string it must NOT come first. If `-' is in this
+string, it must come first or right after `]'. In other words, if
+S is this string, then `[S]' must be a legal Emacs regular expression
+(not containing character ranges like `a-z').")
+
+
+(defvar PC-first-char 'x
+ "*If t, first character of a string to be completed is always taken literally.
+If nil, word delimiters are handled even if they appear as first character.
+This controls whether \".e\" matches \".e*\" (t) or \"*.e*\" (nil).
+If neither nil nor t, first char is literal only for filename completion.")
+
+
+(defvar PC-include-file-path '("/usr/include")
+ "*List of directories in which to look for include files.
+If this is nil, uses the colon-separated path in $INCPATH instead.")
+
+
+(defvar PC-disable-wildcards nil
+ "Set this to non-nil to disable wildcard support in \\[find-file].")
+
+(defvar PC-disable-includes nil
+ "Set this to non-nil to disable include-file support in \\[find-file].")
+
+
+(defvar PC-default-bindings t
+ "Set this to nil to suppress the default partial completion key bindings.")
+
+(if PC-default-bindings (progn
+(define-key minibuffer-local-completion-map "\t" 'PC-complete)
+(define-key minibuffer-local-completion-map " " 'PC-complete-word)
+(define-key minibuffer-local-completion-map "?" 'PC-completion-help)
+
+(define-key minibuffer-local-completion-map "\e\t" 'PC-complete)
+(define-key minibuffer-local-completion-map "\e " 'PC-complete-word)
+(define-key minibuffer-local-completion-map "\e\r" 'PC-force-complete-and-exit)
+(define-key minibuffer-local-completion-map "\e\n" 'PC-force-complete-and-exit)
+(define-key minibuffer-local-completion-map "\e?" 'PC-completion-help)
+
+(define-key minibuffer-local-must-match-map "\t" 'PC-complete)
+(define-key minibuffer-local-must-match-map " " 'PC-complete-word)
+(define-key minibuffer-local-must-match-map "\r" 'PC-complete-and-exit)
+(define-key minibuffer-local-must-match-map "\n" 'PC-complete-and-exit)
+(define-key minibuffer-local-must-match-map "?" 'PC-completion-help)
+
+(define-key minibuffer-local-must-match-map "\e\t" 'PC-complete)
+(define-key minibuffer-local-must-match-map "\e " 'PC-complete-word)
+(define-key minibuffer-local-must-match-map "\e\r" 'PC-complete-and-exit)
+(define-key minibuffer-local-must-match-map "\e\n" 'PC-complete-and-exit)
+(define-key minibuffer-local-must-match-map "\e?" 'PC-completion-help)
+
+(define-key global-map "\e\t" 'PC-lisp-complete-symbol)
+))
+
+
+(defun PC-complete ()
+ "Like minibuffer-complete, but allows \"b--di\"-style abbreviations.
+For example, \"M-x b--di\" would match `byte-recompile-directory', or any
+name which consists of three or more words, the first beginning with \"b\"
+and the third beginning with \"di\".
+
+The pattern \"b--d\" is ambiguous for `byte-recompile-directory' and
+`beginning-of-defun', so this would produce a list of completions
+just like when normal Emacs completions are ambiguous.
+
+Word-delimiters for the purposes of Partial Completion are \"-\", \"_\",
+\".\", and SPC."
+ (interactive)
+ (if (PC-was-meta-key)
+ (minibuffer-complete)
+ (PC-do-completion nil)))
+
+
+(defun PC-complete-word ()
+ "Like `minibuffer-complete-word', but allows \"b--di\"-style abbreviations.
+See `PC-complete' for details.
+This can be bound to other keys, like `-' and `.', if you wish."
+ (interactive)
+ (if (eq (PC-was-meta-key) PC-meta-flag)
+ (if (eq last-command-char ? )
+ (minibuffer-complete-word)
+ (self-insert-command 1))
+ (self-insert-command 1)
+ (if (eobp)
+ (PC-do-completion 'word))))
+
+
+(defun PC-complete-space ()
+ "Like `minibuffer-complete-word', but allows \"b--di\"-style abbreviations.
+See `PC-complete' for details.
+This is suitable for binding to other keys which should act just like SPC."
+ (interactive)
+ (if (eq (PC-was-meta-key) PC-meta-flag)
+ (minibuffer-complete-word)
+ (insert " ")
+ (if (eobp)
+ (PC-do-completion 'word))))
+
+
+(defun PC-complete-and-exit ()
+ "Like `minibuffer-complete-and-exit', but allows \"b--di\"-style abbreviations.
+See `PC-complete' for details."
+ (interactive)
+ (if (eq (PC-was-meta-key) PC-meta-flag)
+ (minibuffer-complete-and-exit)
+ (PC-do-complete-and-exit)))
+
+(defun PC-force-complete-and-exit ()
+ "Like `minibuffer-complete-and-exit', but allows \"b--di\"-style abbreviations.
+See `PC-complete' for details."
+ (interactive)
+ (let ((minibuffer-completion-confirm nil))
+ (PC-do-complete-and-exit)))
+
+(defun PC-do-complete-and-exit ()
+ (if (= (buffer-size) 0) ; Duplicate the "bug" that Info-menu relies on...
+ (exit-minibuffer)
+ (let ((flag (PC-do-completion 'exit)))
+ (and flag
+ (if (or (eq flag 'complete)
+ (not minibuffer-completion-confirm))
+ (exit-minibuffer)
+ (PC-temp-minibuffer-message " (Confirm)"))))))
+
+
+(defun PC-completion-help ()
+ "Like `minibuffer-completion-help', but allows \"b--di\"-style abbreviations.
+See `PC-complete' for details."
+ (interactive)
+ (if (eq (PC-was-meta-key) PC-meta-flag)
+ (minibuffer-completion-help)
+ (PC-do-completion 'help)))
+
+(defun PC-was-meta-key ()
+ (or (/= (length (this-command-keys)) 1)
+ (let ((key (aref (this-command-keys) 0)))
+ (if (integerp key)
+ (>= key 128)
+ (not (null (memq 'meta (event-modifiers key))))))))
+
+
+(defvar PC-ignored-extensions 'empty-cache)
+(defvar PC-delims 'empty-cache)
+(defvar PC-ignored-regexp nil)
+(defvar PC-word-failed-flag nil)
+(defvar PC-delim-regex nil)
+(defvar PC-ndelims-regex nil)
+(defvar PC-delims-list nil)
+
+(defun PC-do-completion (&optional mode beg end)
+ (or beg (setq beg (point-min)))
+ (or end (setq end (point-max)))
+ (let* ((table minibuffer-completion-table)
+ (pred minibuffer-completion-predicate)
+ (filename (memq table '(read-file-name-internal
+ read-directory-name-internal)))
+ (dirname nil)
+ (str (buffer-substring beg end))
+ (incname (and filename (string-match "<\\([^\"<>]*\\)>?$" str)))
+ (ambig nil)
+ basestr
+ regex
+ p offset
+ (poss nil)
+ helpposs
+ (case-fold-search completion-ignore-case))
+
+ ;; Check if buffer contents can already be considered complete
+ (if (and (eq mode 'exit)
+ (PC-is-complete-p str table pred))
+ 'complete
+
+ ;; Do substitutions in directory names
+ (and filename
+ (not (equal str (setq p (substitute-in-file-name str))))
+ (progn
+ (delete-region beg end)
+ (insert p)
+ (setq str p end (+ beg (length str)))))
+
+ ;; Prepare various delimiter strings
+ (or (equal PC-word-delimiters PC-delims)
+ (setq PC-delims PC-word-delimiters
+ PC-delim-regex (concat "[" PC-delims "]")
+ PC-ndelims-regex (concat "[^" PC-delims "]*")
+ PC-delims-list (append PC-delims nil)))
+
+ ;; Look for wildcard expansions in directory name
+ (and filename
+ (string-match "\\*.*/" str)
+ (let ((pat str)
+ files)
+ (setq p (1+ (string-match "/[^/]*\\'" pat)))
+ (while (setq p (string-match PC-delim-regex pat p))
+ (setq pat (concat (substring pat 0 p)
+ "*"
+ (substring pat p))
+ p (+ p 2)))
+ (setq files (PC-expand-many-files (concat pat "*")))
+ (if files
+ (let ((dir (file-name-directory (car files)))
+ (p files))
+ (while (and (setq p (cdr p))
+ (equal dir (file-name-directory (car p)))))
+ (if p
+ (setq filename nil table nil pred nil
+ ambig t)
+ (delete-region beg end)
+ (setq str (concat dir (file-name-nondirectory str)))
+ (insert str)
+ (setq end (+ beg (length str)))))
+ (setq filename nil table nil pred nil))))
+
+ ;; Strip directory name if appropriate
+ (if filename
+ (if incname
+ (setq basestr (substring str incname)
+ dirname (substring str 0 incname))
+ (setq basestr (file-name-nondirectory str)
+ dirname (file-name-directory str)))
+ (setq basestr str))
+
+ ;; Convert search pattern to a standard regular expression
+ (setq regex (regexp-quote basestr)
+ offset (if (and (> (length regex) 0)
+ (not (eq (aref basestr 0) ?\*))
+ (or (eq PC-first-char t)
+ (and PC-first-char filename))) 1 0)
+ p offset)
+ (while (setq p (string-match PC-delim-regex regex p))
+ (if (eq (aref regex p) ? )
+ (setq regex (concat (substring regex 0 p)
+ PC-ndelims-regex
+ PC-delim-regex
+ (substring regex (1+ p)))
+ p (+ p (length PC-ndelims-regex) (length PC-delim-regex)))
+ (let ((bump (if (memq (aref regex p)
+ '(?$ ?^ ?\. ?* ?+ ?? ?[ ?] ?\\))
+ -1 0)))
+ (setq regex (concat (substring regex 0 (+ p bump))
+ PC-ndelims-regex
+ (substring regex (+ p bump)))
+ p (+ p (length PC-ndelims-regex) 1)))))
+ (setq p 0)
+ (if filename
+ (while (setq p (string-match "\\\\\\*" regex p))
+ (setq regex (concat (substring regex 0 p)
+ "[^/]*"
+ (substring regex (+ p 2))))))
+ ;;(setq the-regex regex)
+ (setq regex (concat "\\`" regex))
+
+ ;; Find an initial list of possible completions
+ (if (not (setq p (string-match (concat PC-delim-regex
+ (if filename "\\|\\*" ""))
+ str
+ (+ (length dirname) offset))))
+
+ ;; Minibuffer contains no hyphens -- simple case!
+ (setq poss (all-completions str
+ table
+ pred))
+
+ ;; Use all-completions to do an initial cull. This is a big win,
+ ;; since all-completions is written in C!
+ (let ((compl (all-completions (substring str 0 p)
+ table
+ pred)))
+ (setq p compl)
+ (while p
+ (and (string-match regex (car p))
+ (setq poss (cons (car p) poss)))
+ (setq p (cdr p)))))
+
+ ;; Now we have a list of possible completions
+ (cond
+
+ ;; No valid completions found
+ ((null poss)
+ (if (and (eq mode 'word)
+ (not PC-word-failed-flag))
+ (let ((PC-word-failed-flag t))
+ (delete-backward-char 1)
+ (PC-do-completion 'word))
+ (beep)
+ (PC-temp-minibuffer-message (if ambig
+ " (Ambiguous dir name)"
+ (if (eq mode 'help)
+ " (No completions)"
+ " (No match)")))
+ nil))
+
+ ;; More than one valid completion found
+ ((or (cdr (setq helpposs poss))
+ (memq mode '(help word)))
+
+ ;; Handle completion-ignored-extensions
+ (and filename
+ (not (eq mode 'help))
+ (let ((p2 poss))
+
+ ;; Build a regular expression representing the extensions list
+ (or (equal completion-ignored-extensions PC-ignored-extensions)
+ (setq PC-ignored-regexp
+ (concat "\\("
+ (mapconcat
+ 'regexp-quote
+ (setq PC-ignored-extensions
+ completion-ignored-extensions)
+ "\\|")
+ "\\)\\'")))
+
+ ;; Check if there are any without an ignored extension
+ (setq p nil)
+ (while p2
+ (or (string-match PC-ignored-regexp (car p2))
+ (setq p (cons (car p2) p)))
+ (setq p2 (cdr p2)))
+
+ ;; If there are "good" names, use them
+ (and p (setq poss p))))
+
+ ;; Is the actual string one of the possible completions?
+ (setq p (and (not (eq mode 'help)) poss))
+ (while (and p
+ (not (equal (car p) basestr)))
+ (setq p (cdr p)))
+ (if p
+
+ (progn
+ (if (null mode)
+ (PC-temp-minibuffer-message " (Complete, but not unique)"))
+ t)
+
+ ;; If ambiguous, try for a partial completion
+ (let ((improved nil)
+ prefix
+ (pt nil)
+ (skip "\\`"))
+
+ ;; Check if next few letters are the same in all cases
+ (if (and (not (eq mode 'help))
+ (setq prefix (try-completion "" (mapcar 'list poss))))
+ (let ((first t) i)
+ (if (eq mode 'word)
+ (setq prefix (PC-chop-word prefix basestr)))
+ (goto-char (+ beg (length dirname)))
+ (while (and (progn
+ (setq i 0)
+ (while (< i (length prefix))
+ (if (and (< (point) end)
+ (eq (aref prefix i)
+ (following-char)))
+ (forward-char 1)
+ (if (and (< (point) end)
+ (or (and (looking-at " ")
+ (memq (aref prefix i)
+ PC-delims-list))
+ (eq (downcase (aref prefix i))
+ (downcase
+ (following-char)))))
+ (progn
+ (delete-char 1)
+ (setq end (1- end)))
+ (and filename (looking-at "\\*")
+ (progn
+ (delete-char 1)
+ (setq end (1- end))))
+ (setq improved t))
+ (insert (substring prefix i (1+ i)))
+ (setq end (1+ end)))
+ (setq i (1+ i)))
+ (or pt (equal (point) beg)
+ (setq pt (point)))
+ (looking-at PC-delim-regex))
+ (setq skip (concat skip
+ (regexp-quote prefix)
+ PC-ndelims-regex)
+ prefix (try-completion
+ ""
+ (mapcar
+ (function
+ (lambda (x)
+ (list
+ (and (string-match skip x)
+ (substring
+ x
+ (match-end 0))))))
+ poss)))
+ (or (> i 0) (> (length prefix) 0))
+ (or (not (eq mode 'word))
+ (and first (> (length prefix) 0)
+ (setq first nil
+ prefix (substring prefix 0 1))))))
+ (goto-char (if (eq mode 'word) end
+ (or pt beg)))))
+
+ (if (and (eq mode 'word)
+ (not PC-word-failed-flag))
+
+ (if improved
+
+ ;; We changed it... would it be complete without the space?
+ (if (PC-is-complete-p (buffer-substring 1 (1- end))
+ table pred)
+ (delete-region (1- end) end)))
+
+ (if improved
+
+ ;; We changed it... enough to be complete?
+ (and (eq mode 'exit)
+ (PC-is-complete-p (buffer-string) table pred))
+
+ ;; If totally ambiguous, display a list of completions
+ (if (or completion-auto-help
+ (eq mode 'help))
+ (with-output-to-temp-buffer " *Completions*"
+ (display-completion-list (sort helpposs 'string-lessp)))
+ (PC-temp-minibuffer-message " (Next char not unique)"))
+ nil)))))
+
+ ;; Only one possible completion
+ (t
+ (if (equal basestr (car poss))
+ (if (null mode)
+ (PC-temp-minibuffer-message " (Sole completion)"))
+ (delete-region beg end)
+ (insert (if filename
+ (substitute-in-file-name (concat dirname (car poss)))
+ (car poss))))
+ t)))))
+
+
+(defun PC-is-complete-p (str table pred)
+ (let ((res (if (listp table)
+ (assoc str table)
+ (if (vectorp table)
+ (or (equal str "nil") ; heh, heh, heh
+ (intern-soft str table))
+ (funcall table str pred 'lambda)))))
+ (and res
+ (or (not pred)
+ (and (not (listp table)) (not (vectorp table)))
+ (funcall pred res))
+ res)))
+
+(defun PC-chop-word (new old)
+ (let ((i -1)
+ (j -1))
+ (while (and (setq i (string-match PC-delim-regex old (1+ i)))
+ (setq j (string-match PC-delim-regex new (1+ j)))))
+ (if (and j
+ (or (not PC-word-failed-flag)
+ (setq j (string-match PC-delim-regex new (1+ j)))))
+ (substring new 0 (1+ j))
+ new)))
+
+(defvar PC-not-minibuffer nil)
+
+(defun PC-temp-minibuffer-message (m)
+ "A Lisp version of `temp_minibuffer_message' from minibuf.c."
+ (if PC-not-minibuffer
+ (progn
+ (message m)
+ (sit-for 2)
+ (message ""))
+ (if (fboundp 'temp-minibuffer-message)
+ (temp-minibuffer-message m)
+ (let ((savemax (point-max)))
+ (save-excursion
+ (goto-char (point-max))
+ (insert m))
+ (let ((inhibit-quit t))
+ (sit-for 2)
+ (delete-region savemax (point-max))
+ (if quit-flag
+ (setq quit-flag nil
+ unread-command-char 7)))))))
+
+
+(defun PC-lisp-complete-symbol ()
+ "Perform completion on Lisp symbol preceding point.
+That symbol is compared against the symbols that exist
+and any additional characters determined by what is there
+are inserted.
+If the symbol starts just after an open-parenthesis,
+only symbols with function definitions are considered.
+Otherwise, all symbols with function definitions, values
+or properties are considered."
+ (interactive)
+ (let* ((end (point))
+ (buffer-syntax (syntax-table))
+ (beg (unwind-protect
+ (save-excursion
+ (if lisp-mode-syntax-table
+ (set-syntax-table lisp-mode-syntax-table))
+ (backward-sexp 1)
+ (while (= (char-syntax (following-char)) ?\')
+ (forward-char 1))
+ (point))
+ (set-syntax-table buffer-syntax)))
+ (minibuffer-completion-table obarray)
+ (minibuffer-completion-predicate
+ (if (eq (char-after (1- beg)) ?\()
+ 'fboundp
+ (function (lambda (sym)
+ (or (boundp sym) (fboundp sym)
+ (symbol-plist sym))))))
+ (PC-not-minibuffer t))
+ (PC-do-completion nil beg end)))
+
+
+;;; Wildcards in `C-x C-f' command. This is independent from the main
+;;; completion code, except for `PC-expand-many-files' which is called
+;;; when "*"'s are found in the path during filename completion. (The
+;;; above completion code always understands "*"'s, except in file paths,
+;;; without relying on the following code.)
+
+(defvar PC-many-files-list nil)
+
+(defun PC-try-load-many-files ()
+ (if (string-match "\\*" buffer-file-name)
+ (let* ((pat buffer-file-name)
+ (files (PC-expand-many-files pat))
+ (first (car files))
+ (next files))
+ (kill-buffer (current-buffer))
+ (or files
+ (error "No matching files"))
+ (save-window-excursion
+ (while (setq next (cdr next))
+ (let ((buf (find-file-noselect (car next))))
+ (switch-to-buffer buf))))
+ ;; This modifies the "buf" variable inside find-file-noselect.
+ (setq buf (get-file-buffer first))
+ (if buf
+ nil ; should do verify-visited-file-modtime stuff.
+ (setq filename first)
+ (setq buf (create-file-buffer filename))
+ (set-buffer buf)
+ (erase-buffer)
+ (insert-file-contents filename t))
+ (if (cdr files)
+ (setq PC-many-files-list (mapconcat
+ (if (string-match "\\*.*/" pat)
+ 'identity
+ 'file-name-nondirectory)
+ (cdr files) ", ")
+ find-file-hooks (cons 'PC-after-load-many-files
+ find-file-hooks)))
+ ;; This modifies the "error" variable inside find-file-noselect.
+ (setq error nil)
+ t)
+ nil))
+
+(defun PC-after-load-many-files ()
+ (setq find-file-hooks (delq 'PC-after-load-many-files find-file-hooks))
+ (message "Also loaded %s." PC-many-files-list))
+
+(defun PC-expand-many-files (name)
+ (save-excursion
+ (set-buffer (generate-new-buffer " *Glob Output*"))
+ (erase-buffer)
+ (shell-command (concat "echo " name) t)
+ (goto-char (point-min))
+ (if (looking-at ".*No match")
+ nil
+ (insert "(\"")
+ (while (search-forward " " nil t)
+ (delete-backward-char 1)
+ (insert "\" \""))
+ (goto-char (point-max))
+ (delete-backward-char 1)
+ (insert "\")")
+ (goto-char (point-min))
+ (let ((files (read (current-buffer))))
+ (kill-buffer (current-buffer))
+ files))))
+
+(or PC-disable-wildcards
+ (memq 'PC-try-load-many-files find-file-not-found-hooks)
+ (setq find-file-not-found-hooks (cons 'PC-try-load-many-files
+ find-file-not-found-hooks)))
+
+
+
+;;; Facilities for loading C header files. This is independent from the
+;;; main completion code. See also the variable `PC-include-file-path'
+;;; at top of this file.
+
+(defun PC-look-for-include-file ()
+ (if (string-match "[\"<]\\([^\"<>]*\\)[\">]?$" (buffer-file-name))
+ (let ((name (substring (buffer-file-name)
+ (match-beginning 1) (match-end 1)))
+ (punc (aref (buffer-file-name) (match-beginning 0)))
+ (path nil)
+ new-buf)
+ (kill-buffer (current-buffer))
+ (if (equal name "")
+ (save-excursion
+ (set-buffer (car (buffer-list)))
+ (save-excursion
+ (beginning-of-line)
+ (if (looking-at
+ "[ \t]*#[ \t]*include[ \t]+[<\"]\\(.+\\)[>\"][ \t]*[\n/]")
+ (setq name (buffer-substring (match-beginning 1)
+ (match-end 1))
+ punc (char-after (1- (match-beginning 1))))
+ ;; Suggested by Frank Siebenlist:
+ (if (or (looking-at
+ "[ \t]*([ \t]*load[ \t]+\"\\([^\"]+\\)\"")
+ (looking-at
+ "[ \t]*([ \t]*load-library[ \t]+\"\\([^\"]+\\)\"")
+ (looking-at
+ "[ \t]*([ \t]*require[ \t]+'\\([^\t )]+\\)[\t )]"))
+ (progn
+ (setq name (buffer-substring (match-beginning 1)
+ (match-end 1))
+ punc ?\<
+ path load-path)
+ (if (string-match "\\.elc$" name)
+ (setq name (substring name 0 -1))
+ (or (string-match "\\.el$" name)
+ (setq name (concat name ".el")))))
+ (error "Not on an #include line"))))))
+ (or (string-match "\\.[a-zA-Z0-9]+$" name)
+ (setq name (concat name ".h")))
+ (if (eq punc ?\<)
+ (let ((path (or path (PC-include-file-path))))
+ (while (and path
+ (not (file-exists-p
+ (concat (file-name-as-directory (car path))
+ name))))
+ (setq path (cdr path)))
+ (if path
+ (setq name (concat (file-name-as-directory (car path)) name))
+ (error "No such include file: <%s>" name)))
+ (let ((dir (save-excursion
+ (set-buffer (car (buffer-list)))
+ default-directory)))
+ (if (file-exists-p (concat dir name))
+ (setq name (concat dir name))
+ (error "No such include file: \"%s\"" name))))
+ (setq new-buf (get-file-buffer name))
+ (if new-buf
+ ;; no need to verify last-modified time for this!
+ (set-buffer new-buf)
+ (setq new-buf (create-file-buffer name))
+ (set-buffer new-buf)
+ (erase-buffer)
+ (insert-file-contents name t))
+ (setq filename name
+ error nil
+ buf new-buf)
+ t)
+ nil))
+
+(defun PC-include-file-path ()
+ (or PC-include-file-path
+ (let ((env (getenv "INCPATH"))
+ (path nil)
+ pos)
+ (or env (error "No include file path specified"))
+ (while (setq pos (string-match ":[^:]+$" env))
+ (setq path (cons (substring env (1+ pos)) path)
+ env (substring env 0 pos)))
+ path)))
+
+;;; This is adapted from lib-complete.el, by Mike Williams.
+(defun PC-include-file-all-completions (file search-path &optional full)
+ "Return all completions for FILE in any directory on SEARCH-PATH.
+If optional third argument FULL is non-nil, returned pathnames should be
+absolute rather than relative to some directory on the SEARCH-PATH."
+ (setq search-path
+ (mapcar '(lambda (dir)
+ (if dir (file-name-as-directory dir) default-directory))
+ search-path))
+ (if (file-name-absolute-p file)
+ ;; It's an absolute file name, so don't need search-path
+ (progn
+ (setq file (expand-file-name file))
+ (file-name-all-completions
+ (file-name-nondirectory file) (file-name-directory file)))
+ (let ((subdir (file-name-directory file))
+ (ndfile (file-name-nondirectory file))
+ file-lists)
+ ;; Append subdirectory part to each element of search-path
+ (if subdir
+ (setq search-path
+ (mapcar '(lambda (dir) (concat dir subdir))
+ search-path)
+ file ))
+ ;; Make list of completions in each directory on search-path
+ (while search-path
+ (let* ((dir (car search-path))
+ (subdir (if full dir subdir)))
+ (if (file-directory-p dir)
+ (progn
+ (setq file-lists
+ (cons
+ (mapcar '(lambda (file) (concat subdir file))
+ (file-name-all-completions ndfile
+ (car search-path)))
+ file-lists))))
+ (setq search-path (cdr search-path))))
+ ;; Compress out duplicates while building complete list (slloooow!)
+ (let ((sorted (sort (apply 'nconc file-lists)
+ '(lambda (x y) (not (string-lessp x y)))))
+ compressed)
+ (while sorted
+ (if (equal (car sorted) (car compressed)) nil
+ (setq compressed (cons (car sorted) compressed)))
+ (setq sorted (cdr sorted)))
+ compressed))))
+
+(defvar PC-old-read-file-name-internal nil)
+
+(defun PC-read-include-file-name-internal (string dir action)
+ (if (string-match "<\\([^\"<>]*\\)>?$" string)
+ (let* ((name (substring string (match-beginning 1) (match-end 1)))
+ (str2 (substring string (match-beginning 0)))
+ (completion-table
+ (mapcar (function (lambda (x) (list (format "<%s>" x))))
+ (PC-include-file-all-completions
+ name (PC-include-file-path)))))
+ (cond
+ ((not completion-table) nil)
+ ((eq action nil) (try-completion str2 completion-table nil))
+ ((eq action t) (all-completions str2 completion-table nil))
+ ((eq action 'lambda)
+ (eq (try-completion str2 completion-table nil) t))))
+ (funcall PC-old-read-file-name-internal string dir action)))
+
+(or PC-disable-includes
+ (memq 'PC-look-for-include-file find-file-not-found-hooks)
+ (setq find-file-not-found-hooks (cons 'PC-look-for-include-file
+ find-file-not-found-hooks)))
+
+(or PC-disable-includes
+ PC-old-read-file-name-internal
+ (progn
+ (setq PC-old-read-file-name-internal
+ (symbol-function 'read-file-name-internal))
+ (fset 'read-file-name-internal 'PC-read-include-file-name-internal)))
+
+\f
+(provide 'complete)
+
+;;; End.
projects / emacs.git / commitdiff