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1b368e3120
(PC-do-completion): Replace all calls to `PC-is-complete-p' with calls to `test-completion'.
949 lines
32 KiB
EmacsLisp
949 lines
32 KiB
EmacsLisp
;;; complete.el --- partial completion mechanism plus other goodies
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;; Copyright (C) 1990, 1991, 1992, 1993, 1999, 2000, 2003
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;; Free Software Foundation, Inc.
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;; Author: Dave Gillespie <daveg@synaptics.com>
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;; Keywords: abbrev convenience
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;; Special thanks to Hallvard Furuseth for his many ideas and contributions.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; Extended completion for the Emacs minibuffer.
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;;
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;; The basic idea is that the command name or other completable text is
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;; divided into words and each word is completed separately, so that
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;; "M-x p-b" expands to "M-x print-buffer". If the entry is ambiguous
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;; each word is completed as much as possible and then the cursor is
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;; left at the first position where typing another letter will resolve
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;; the ambiguity.
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;;
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;; Word separators for this purpose are hyphen, space, and period.
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;; These would most likely occur in command names, Info menu items,
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;; and file names, respectively. But all word separators are treated
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;; alike at all times.
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;;
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;; This completion package replaces the old-style completer's key
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;; bindings for TAB, SPC, RET, and `?'. The old completer is still
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;; available on the Meta versions of those keys. If you set
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;; PC-meta-flag to nil, the old completion keys will be left alone
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;; and the partial completer will use the Meta versions of the keys.
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;; Usage: M-x partial-completion-mode. During completable minibuffer entry,
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;;
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;; TAB means to do a partial completion;
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;; SPC means to do a partial complete-word;
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;; RET means to do a partial complete-and-exit;
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;; ? means to do a partial completion-help.
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;;
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;; If you set PC-meta-flag to nil, then TAB, SPC, RET, and ? perform
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;; original Emacs completions, and M-TAB etc. do partial completion.
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;; To do this, put the command,
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;;
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;; (setq PC-meta-flag nil)
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;;
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;; in your .emacs file. To load partial completion automatically, put
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;;
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;; (partial-completion-mode t)
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;;
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;; in your .emacs file, too. Things will be faster if you byte-compile
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;; this file when you install it.
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;;
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;; As an extra feature, in cases where RET would not normally
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;; complete (such as `C-x b'), the M-RET key will always do a partial
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;; complete-and-exit. Thus `C-x b f.c RET' will select or create a
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;; buffer called "f.c", but `C-x b f.c M-RET' will select the existing
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;; buffer whose name matches that pattern (perhaps "filing.c").
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;; (PC-meta-flag does not affect this behavior; M-RET used to be
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;; undefined in this situation.)
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;;
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;; The regular M-TAB (lisp-complete-symbol) command also supports
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;; partial completion in this package.
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;; In addition, this package includes a feature for accessing include
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;; files. For example, `C-x C-f <sys/time.h> RET' reads the file
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;; /usr/include/sys/time.h. The variable PC-include-file-path is a
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;; list of directories in which to search for include files. Completion
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;; is supported in include file names.
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;;; Code:
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(defgroup partial-completion nil
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"Partial Completion of items."
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:prefix "pc-"
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:group 'minibuffer
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:group 'convenience)
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(defcustom PC-first-char 'find-file
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"*Control how the first character of a string is to be interpreted.
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If nil, the first character of a string is not taken literally if it is a word
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delimiter, so that \".e\" matches \"*.e*\".
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If t, the first character of a string is always taken literally even if it is a
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word delimiter, so that \".e\" matches \".e*\".
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If non-nil and non-t, the first character is taken literally only for file name
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completion."
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:type '(choice (const :tag "delimiter" nil)
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(const :tag "literal" t)
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(other :tag "find-file" find-file))
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:group 'partial-completion)
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(defcustom PC-meta-flag t
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"*If non-nil, TAB means PC completion and M-TAB means normal completion.
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Otherwise, TAB means normal completion and M-TAB means Partial Completion."
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:type 'boolean
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:group 'partial-completion)
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(defcustom PC-word-delimiters "-_. "
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"*A string of characters treated as word delimiters for completion.
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Some arcane rules:
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If `]' is in this string, it must come first.
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If `^' is in this string, it must not come first.
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If `-' is in this string, it must come first or right after `]'.
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In other words, if S is this string, then `[S]' must be a legal Emacs regular
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expression (not containing character ranges like `a-z')."
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:type 'string
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:group 'partial-completion)
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(defcustom PC-include-file-path '("/usr/include" "/usr/local/include")
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"*A list of directories in which to look for include files.
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If nil, means use the colon-separated path in the variable $INCPATH instead."
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:type '(repeat directory)
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:group 'partial-completion)
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(defcustom PC-disable-includes nil
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"*If non-nil, include-file support in \\[find-file] is disabled."
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:type 'boolean
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:group 'partial-completion)
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(defvar PC-default-bindings t
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"If non-nil, default partial completion key bindings are suppressed.")
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(defvar PC-env-vars-alist nil
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"A list of the environment variable names and values.")
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(defvar PC-old-read-file-name-internal nil)
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(defun PC-bindings (bind)
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(let ((completion-map minibuffer-local-completion-map)
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(must-match-map minibuffer-local-must-match-map))
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(cond ((not bind)
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;; These bindings are the default bindings. It would be better to
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;; restore the previous bindings.
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(define-key completion-map "\t" 'minibuffer-complete)
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(define-key completion-map " " 'minibuffer-complete-word)
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(define-key completion-map "?" 'minibuffer-completion-help)
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(define-key must-match-map "\t" 'minibuffer-complete)
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(define-key must-match-map " " 'minibuffer-complete-word)
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(define-key must-match-map "\r" 'minibuffer-complete-and-exit)
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(define-key must-match-map "\n" 'minibuffer-complete-and-exit)
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(define-key must-match-map "?" 'minibuffer-completion-help)
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(define-key global-map "\e\t" 'complete-symbol))
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(PC-default-bindings
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(define-key completion-map "\t" 'PC-complete)
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(define-key completion-map " " 'PC-complete-word)
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(define-key completion-map "?" 'PC-completion-help)
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(define-key completion-map "\e\t" 'PC-complete)
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(define-key completion-map "\e " 'PC-complete-word)
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(define-key completion-map "\e\r" 'PC-force-complete-and-exit)
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(define-key completion-map "\e\n" 'PC-force-complete-and-exit)
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(define-key completion-map "\e?" 'PC-completion-help)
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(define-key must-match-map "\t" 'PC-complete)
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(define-key must-match-map " " 'PC-complete-word)
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(define-key must-match-map "\r" 'PC-complete-and-exit)
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(define-key must-match-map "\n" 'PC-complete-and-exit)
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(define-key must-match-map "?" 'PC-completion-help)
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(define-key must-match-map "\e\t" 'PC-complete)
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(define-key must-match-map "\e " 'PC-complete-word)
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(define-key must-match-map "\e\r" 'PC-complete-and-exit)
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(define-key must-match-map "\e\n" 'PC-complete-and-exit)
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(define-key must-match-map "\e?" 'PC-completion-help)
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(define-key global-map "\e\t" 'PC-lisp-complete-symbol)))))
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;;;###autoload
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(define-minor-mode partial-completion-mode
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"Toggle Partial Completion mode.
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With prefix ARG, turn Partial Completion mode on if ARG is positive.
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When Partial Completion mode is enabled, TAB (or M-TAB if `PC-meta-flag' is
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nil) is enhanced so that if some string is divided into words and each word is
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delimited by a character in `PC-word-delimiters', partial words are completed
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as much as possible and `*' characters are treated likewise in file names.
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For example, M-x p-c-m expands to M-x partial-completion-mode since no other
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command begins with that sequence of characters, and
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\\[find-file] f_b.c TAB might complete to foo_bar.c if that file existed and no
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other file in that directory begin with that sequence of characters.
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Unless `PC-disable-includes' is non-nil, the `<...>' sequence is interpreted
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specially in \\[find-file]. For example,
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\\[find-file] <sys/time.h> RET finds the file `/usr/include/sys/time.h'.
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See also the variable `PC-include-file-path'."
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:global t :group 'partial-completion
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;; Deal with key bindings...
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(PC-bindings partial-completion-mode)
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;; Deal with include file feature...
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(cond ((not partial-completion-mode)
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(remove-hook 'find-file-not-found-hooks 'PC-look-for-include-file))
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((not PC-disable-includes)
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(add-hook 'find-file-not-found-hooks 'PC-look-for-include-file)))
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;; ... with some underhand redefining.
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(cond ((and (not partial-completion-mode)
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(functionp PC-old-read-file-name-internal))
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(fset 'read-file-name-internal PC-old-read-file-name-internal))
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((and (not PC-disable-includes) (not PC-old-read-file-name-internal))
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(setq PC-old-read-file-name-internal
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(symbol-function 'read-file-name-internal))
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(fset 'read-file-name-internal
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'PC-read-include-file-name-internal)))
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(when (and partial-completion-mode (null PC-env-vars-alist))
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(setq PC-env-vars-alist
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(mapcar (lambda (string)
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(let ((d (string-match "=" string)))
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(cons (concat "$" (substring string 0 d))
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(and d (substring string (1+ d))))))
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process-environment))))
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(defun PC-complete ()
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"Like minibuffer-complete, but allows \"b--di\"-style abbreviations.
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For example, \"M-x b--di\" would match `byte-recompile-directory', or any
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name which consists of three or more words, the first beginning with \"b\"
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and the third beginning with \"di\".
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The pattern \"b--d\" is ambiguous for `byte-recompile-directory' and
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`beginning-of-defun', so this would produce a list of completions
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just like when normal Emacs completions are ambiguous.
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Word-delimiters for the purposes of Partial Completion are \"-\", \"_\",
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\".\", and SPC."
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(interactive)
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(if (PC-was-meta-key)
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(minibuffer-complete)
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;; If the previous command was not this one,
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;; never scroll, always retry completion.
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(or (eq last-command this-command)
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(setq minibuffer-scroll-window nil))
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(let ((window minibuffer-scroll-window))
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;; If there's a fresh completion window with a live buffer,
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;; and this command is repeated, scroll that window.
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(if (and window (window-buffer window)
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(buffer-name (window-buffer window)))
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(save-excursion
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(set-buffer (window-buffer window))
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(if (pos-visible-in-window-p (point-max) window)
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(set-window-start window (point-min) nil)
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(scroll-other-window)))
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(PC-do-completion nil)))))
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(defun PC-complete-word ()
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"Like `minibuffer-complete-word', but allows \"b--di\"-style abbreviations.
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See `PC-complete' for details.
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This can be bound to other keys, like `-' and `.', if you wish."
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(interactive)
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(if (eq (PC-was-meta-key) PC-meta-flag)
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(if (eq last-command-char ? )
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(minibuffer-complete-word)
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(self-insert-command 1))
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(self-insert-command 1)
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(if (eobp)
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(PC-do-completion 'word))))
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(defun PC-complete-space ()
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"Like `minibuffer-complete-word', but allows \"b--di\"-style abbreviations.
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See `PC-complete' for details.
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This is suitable for binding to other keys which should act just like SPC."
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(interactive)
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(if (eq (PC-was-meta-key) PC-meta-flag)
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(minibuffer-complete-word)
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(insert " ")
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(if (eobp)
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(PC-do-completion 'word))))
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(defun PC-complete-and-exit ()
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"Like `minibuffer-complete-and-exit', but allows \"b--di\"-style abbreviations.
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See `PC-complete' for details."
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(interactive)
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(if (eq (PC-was-meta-key) PC-meta-flag)
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(minibuffer-complete-and-exit)
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(PC-do-complete-and-exit)))
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(defun PC-force-complete-and-exit ()
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"Like `minibuffer-complete-and-exit', but allows \"b--di\"-style abbreviations.
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See `PC-complete' for details."
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(interactive)
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(let ((minibuffer-completion-confirm nil))
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(PC-do-complete-and-exit)))
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(defun PC-do-complete-and-exit ()
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(if (= (point-max) (minibuffer-prompt-end)) ; Duplicate the "bug" that Info-menu relies on...
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(exit-minibuffer)
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(let ((flag (PC-do-completion 'exit)))
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(and flag
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(if (or (eq flag 'complete)
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(not minibuffer-completion-confirm))
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(exit-minibuffer)
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(PC-temp-minibuffer-message " [Confirm]"))))))
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(defun PC-completion-help ()
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"Like `minibuffer-completion-help', but allows \"b--di\"-style abbreviations.
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See `PC-complete' for details."
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(interactive)
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(if (eq (PC-was-meta-key) PC-meta-flag)
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(minibuffer-completion-help)
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(PC-do-completion 'help)))
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(defun PC-was-meta-key ()
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(or (/= (length (this-command-keys)) 1)
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(let ((key (aref (this-command-keys) 0)))
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(if (integerp key)
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(>= key 128)
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(not (null (memq 'meta (event-modifiers key))))))))
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(defvar PC-ignored-extensions 'empty-cache)
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(defvar PC-delims 'empty-cache)
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(defvar PC-ignored-regexp nil)
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(defvar PC-word-failed-flag nil)
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(defvar PC-delim-regex nil)
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(defvar PC-ndelims-regex nil)
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(defvar PC-delims-list nil)
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(defvar PC-completion-as-file-name-predicate
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(function
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(lambda ()
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(memq minibuffer-completion-table
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'(read-file-name-internal read-directory-name-internal))))
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"A function testing whether a minibuffer completion now will work filename-style.
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The function takes no arguments, and typically looks at the value
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of `minibuffer-completion-table' and the minibuffer contents.")
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(defun PC-do-completion (&optional mode beg end)
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(or beg (setq beg (minibuffer-prompt-end)))
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(or end (setq end (point-max)))
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(let* ((table minibuffer-completion-table)
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(pred minibuffer-completion-predicate)
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(filename (funcall PC-completion-as-file-name-predicate))
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(dirname nil)
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(dirlength 0)
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(str (buffer-substring beg end))
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(incname (and filename (string-match "<\\([^\"<>]*\\)>?$" str)))
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(ambig nil)
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basestr
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env-on
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regex
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p offset
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(poss nil)
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helpposs
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(case-fold-search completion-ignore-case))
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;; Check if buffer contents can already be considered complete
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(if (and (eq mode 'exit)
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(test-completion str table pred))
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'complete
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;; Do substitutions in directory names
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(and filename
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(setq basestr (or (file-name-directory str) ""))
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(setq dirlength (length basestr))
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;; Do substitutions in directory names
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(setq p (substitute-in-file-name basestr))
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(not (string-equal basestr p))
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(setq str (concat p (file-name-nondirectory str)))
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(progn
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(delete-region beg end)
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(insert str)
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(setq end (+ beg (length str)))))
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;; Prepare various delimiter strings
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(or (equal PC-word-delimiters PC-delims)
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(setq PC-delims PC-word-delimiters
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PC-delim-regex (concat "[" PC-delims "]")
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PC-ndelims-regex (concat "[^" PC-delims "]*")
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PC-delims-list (append PC-delims nil)))
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;; Add wildcards if necessary
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(and filename
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(let ((dir (file-name-directory str))
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(file (file-name-nondirectory str))
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;; The base dir for file-completion is passed in `predicate'.
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(default-directory (expand-file-name pred)))
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(while (and (stringp dir) (not (file-directory-p dir)))
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(setq dir (directory-file-name dir))
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(setq file (concat (replace-regexp-in-string
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PC-delim-regex "*\\&"
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(file-name-nondirectory dir))
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"*/" file))
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(setq dir (file-name-directory dir)))
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(setq str (concat dir file))))
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;; Look for wildcard expansions in directory name
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(and filename
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(string-match "\\*.*/" str)
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(let ((pat str)
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;; The base dir for file-completion is passed in `predicate'.
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(default-directory (expand-file-name pred))
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files)
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(setq p (1+ (string-match "/[^/]*\\'" pat)))
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(while (setq p (string-match PC-delim-regex pat p))
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(setq pat (concat (substring pat 0 p)
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"*"
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(substring pat p))
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p (+ p 2)))
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(setq files (PC-expand-many-files (concat pat "*")))
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(if files
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(let ((dir (file-name-directory (car files)))
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(p files))
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(while (and (setq p (cdr p))
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(equal dir (file-name-directory (car p)))))
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(if p
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(setq filename nil table nil pred nil
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ambig t)
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(delete-region beg end)
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(setq str (concat dir (file-name-nondirectory str)))
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(insert str)
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(setq end (+ beg (length str)))))
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(setq filename nil table nil pred nil))))
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;; Strip directory name if appropriate
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(if filename
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(if incname
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(setq basestr (substring str incname)
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dirname (substring str 0 incname))
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(setq basestr (file-name-nondirectory str)
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||
dirname (file-name-directory str))
|
||
;; Make sure str is consistent with its directory and basename
|
||
;; parts. This is important on DOZe'NT systems when str only
|
||
;; includes a drive letter, like in "d:".
|
||
(setq str (concat dirname basestr)))
|
||
(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))
|
||
|
||
(and (> (length basestr) 0)
|
||
(= (aref basestr 0) ?$)
|
||
(setq env-on t
|
||
table PC-env-vars-alist
|
||
pred nil))
|
||
|
||
;; 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 (if env-on
|
||
basestr 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 (if env-on
|
||
(file-name-nondirectory (substring str 0 p))
|
||
(substring str 0 p))
|
||
table
|
||
pred)))
|
||
(setq p compl)
|
||
(while p
|
||
(and (string-match regex (car p))
|
||
(progn
|
||
(set-text-properties 0 (length (car p)) '() (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.
|
||
;; Also ignore `.' and `..'.
|
||
(setq p nil)
|
||
(while p2
|
||
(or (string-match PC-ignored-regexp (car p2))
|
||
(string-match "\\(\\`\\|/\\)[.][.]?/?\\'" (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 (string-equal (car p) basestr)))
|
||
(setq p (cdr p)))
|
||
(and p (null mode)
|
||
(PC-temp-minibuffer-message " [Complete, but not unique]"))
|
||
(if (and p
|
||
(not (and (null mode)
|
||
(eq this-command last-command))))
|
||
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 (test-completion (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)
|
||
(test-completion (field-string) table pred))
|
||
|
||
;; If totally ambiguous, display a list of completions
|
||
(if (or (eq completion-auto-help t)
|
||
(and completion-auto-help
|
||
(eq last-command this-command))
|
||
(eq mode 'help))
|
||
(with-output-to-temp-buffer "*Completions*"
|
||
(display-completion-list (sort helpposs 'string-lessp))
|
||
(save-excursion
|
||
(set-buffer standard-output)
|
||
;; Record which part of the buffer we are completing
|
||
;; so that choosing a completion from the list
|
||
;; knows how much old text to replace.
|
||
(setq completion-base-size dirlength)))
|
||
(PC-temp-minibuffer-message " [Next char not unique]"))
|
||
nil)))))
|
||
|
||
;; Only one possible completion
|
||
(t
|
||
(if (and (equal basestr (car poss))
|
||
(not (and env-on filename)))
|
||
(if (null mode)
|
||
(PC-temp-minibuffer-message " [Sole completion]"))
|
||
(delete-region beg end)
|
||
(insert (format "%s"
|
||
(if filename
|
||
(substitute-in-file-name (concat dirname (car poss)))
|
||
(car poss)))))
|
||
t)))))
|
||
|
||
(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 (message)
|
||
"A Lisp version of `temp_minibuffer_message' from minibuf.c."
|
||
(cond (PC-not-minibuffer
|
||
(message message)
|
||
(sit-for 2)
|
||
(message ""))
|
||
((fboundp 'temp-minibuffer-message)
|
||
(temp-minibuffer-message message))
|
||
(t
|
||
(let ((point-max (point-max)))
|
||
(save-excursion
|
||
(goto-char point-max)
|
||
(insert message))
|
||
(let ((inhibit-quit t))
|
||
(sit-for 2)
|
||
(delete-region point-max (point-max))
|
||
(when quit-flag
|
||
(setq quit-flag nil
|
||
unread-command-events '(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)))
|
||
|
||
(defun PC-complete-as-file-name ()
|
||
"Perform completion on file names preceding point.
|
||
Environment vars are converted to their values."
|
||
(interactive)
|
||
(let* ((end (point))
|
||
(beg (if (re-search-backward "[^\\][ \t\n\"\`\'][^ \t\n\"\`\']"
|
||
(point-min) t)
|
||
(+ (point) 2)
|
||
(point-min)))
|
||
(minibuffer-completion-table 'read-file-name-internal)
|
||
(minibuffer-completion-predicate "")
|
||
(PC-not-minibuffer t))
|
||
(goto-char end)
|
||
(PC-do-completion nil beg end)))
|
||
|
||
;;; Use the shell to do globbing.
|
||
;;; This could now use file-expand-wildcards instead.
|
||
|
||
(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))) (p nil))
|
||
(kill-buffer (current-buffer))
|
||
(or (equal completion-ignored-extensions PC-ignored-extensions)
|
||
(setq PC-ignored-regexp
|
||
(concat "\\("
|
||
(mapconcat
|
||
'regexp-quote
|
||
(setq PC-ignored-extensions
|
||
completion-ignored-extensions)
|
||
"\\|")
|
||
"\\)\\'")))
|
||
(setq p nil)
|
||
(while files
|
||
(or (string-match PC-ignored-regexp (car files))
|
||
(setq p (cons (car files) p)))
|
||
(setq files (cdr files)))
|
||
p))))
|
||
|
||
;;; 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$" name)
|
||
(setq name (concat name ".el")))))
|
||
(error "Not on an #include line"))))))
|
||
(or (string-match "\\.[[:alnum:]]+$" 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))
|
||
;; Returning non-nil with the new buffer current
|
||
;; is sufficient to tell find-file to use it.
|
||
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))))
|
||
|
||
(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)))
|
||
|
||
|
||
(provide 'complete)
|
||
|
||
;;; arch-tag: fc7e2768-ff44-4e22-b579-4d825b968458
|
||
;;; complete.el ends here
|