1897 lines
63 KiB
EmacsLisp
1897 lines
63 KiB
EmacsLisp
;;; auto-complete.el --- Auto Completion for GNU Emacs
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;; Copyright (C) 2008, 2009, 2010 Tomohiro Matsuyama
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;; Author: Tomohiro Matsuyama <m2ym.pub@gmail.com>
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;; URL: http://cx4a.org/software/auto-complete
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;; Keywords: completion, convenience
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;; Version: 1.3
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;; This program 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 3 of the License, or
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;; (at your option) any later version.
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;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; This extension provides a way to complete with popup menu like:
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;;
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;; def-!-
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;; +-----------------+
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;; |defun::::::::::::|
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;; |defvar |
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;; |defmacro |
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;; | ... |
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;; +-----------------+
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;;
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;; You can complete by typing and selecting menu.
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;;
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;; Entire documents are located in doc/ directory.
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;; Take a look for information.
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;;
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;; Enjoy!
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;;; Code:
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(eval-when-compile
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(require 'cl))
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(require 'popup)
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;;;; Global stuff
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(defun ac-error (&optional var)
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"Report an error and disable `auto-complete-mode'."
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(ignore-errors
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(message "auto-complete error: %s" var)
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(auto-complete-mode -1)
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var))
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;;;; Customization
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(defgroup auto-complete nil
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"Auto completion."
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:group 'completion
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:prefix "ac-")
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(defcustom ac-delay 0.1
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"Delay to completions will be available."
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:type 'float
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:group 'auto-complete)
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(defcustom ac-auto-show-menu 0.8
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"Non-nil means completion menu will be automatically shown."
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:type '(choice (const :tag "Yes" t)
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(const :tag "Never" nil)
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(float :tag "Timer"))
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:group 'auto-complete)
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(defcustom ac-show-menu-immediately-on-auto-complete t
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"Non-nil means menu will be showed immediately on `auto-complete'."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-expand-on-auto-complete t
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"Non-nil means expand whole common part on first time `auto-complete'."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-disable-faces '(font-lock-comment-face font-lock-string-face font-lock-doc-face)
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"Non-nil means disable automatic completion on specified faces."
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:type '(repeat symbol)
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:group 'auto-complete)
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(defcustom ac-stop-flymake-on-completing t
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"Non-nil means disble flymake temporarily on completing."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-use-fuzzy t
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"Non-nil means use fuzzy matching."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-fuzzy-cursor-color "red"
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"Cursor color in fuzzy mode."
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:type 'string
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:group 'auto-complete)
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(defcustom ac-use-comphist t
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"Non-nil means use intelligent completion history."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-comphist-threshold 0.7
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"Percentage of ignoring low scored candidates."
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:type 'float
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:group 'auto-complete)
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(defcustom ac-comphist-file
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(expand-file-name (concat (if (boundp 'user-emacs-directory)
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user-emacs-directory
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"~/.emacs.d/")
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"/ac-comphist.dat"))
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"Completion history file name."
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:type 'string
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:group 'auto-complete)
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(defcustom ac-use-quick-help t
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"Non-nil means use quick help."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-quick-help-delay 1.5
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"Delay to show quick help."
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:type 'float
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:group 'auto-complete)
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(defcustom ac-menu-height 10
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"Max height of candidate menu."
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:type 'integer
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:group 'auto-complete)
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(defvaralias 'ac-candidate-menu-height 'ac-menu-height)
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(defcustom ac-quick-help-height 20
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"Max height of quick help."
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:type 'integer
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:group 'auto-complete)
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(defcustom ac-quick-help-prefer-x t
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"Prefer X tooltip than overlay popup for displaying quick help."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-candidate-limit nil
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"Limit number of candidates. Non-integer means no limit."
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:type 'integer
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:group 'auto-complete)
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(defvaralias 'ac-candidate-max 'ac-candidate-limit)
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(defcustom ac-modes
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'(emacs-lisp-mode
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lisp-interaction-mode
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c-mode cc-mode c++-mode
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java-mode clojure-mode scala-mode
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scheme-mode
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ocaml-mode tuareg-mode
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perl-mode cperl-mode python-mode ruby-mode
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ecmascript-mode javascript-mode js-mode js2-mode php-mode css-mode
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makefile-mode sh-mode fortran-mode f90-mode ada-mode
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xml-mode sgml-mode)
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"Major modes `auto-complete-mode' can run on."
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:type '(repeat symbol)
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:group 'auto-complete)
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(defcustom ac-compatible-packages-regexp
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"^ac-"
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"Regexp to indicate what packages can work with auto-complete."
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:type 'string
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:group 'auto-complete)
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(defcustom ac-trigger-commands
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'(self-insert-command)
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"Trigger commands that specify whether `auto-complete' should start or not."
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:type '(repeat symbol)
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:group 'auto-complete)
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(defcustom ac-trigger-commands-on-completing
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'(delete-backward-char
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backward-delete-char
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backward-delete-char-untabify)
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"Trigger commands that specify whether `auto-complete' should continue or not."
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:type '(repeat symbol)
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:group 'auto-complete)
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(defcustom ac-trigger-key nil
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"Non-nil means `auto-complete' will start by typing this key.
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If you specify this TAB, for example, `auto-complete' will start by typing TAB,
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and if there is no completions, an original command will be fallbacked."
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:type 'string
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:group 'auto-complete
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:set (lambda (symbol value)
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(set-default symbol value)
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(when (and value
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(fboundp 'ac-set-trigger-key))
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(ac-set-trigger-key value))))
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(defcustom ac-auto-start 2
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"Non-nil means completion will be started automatically.
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Positive integer means if a length of a word you entered is larger than the value,
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completion will be started automatically.
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If you specify `nil', never be started automatically."
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:type '(choice (const :tag "Yes" t)
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(const :tag "Never" nil)
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(integer :tag "Require"))
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:group 'auto-complete)
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(defcustom ac-ignores nil
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"List of string to ignore completion."
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:type '(repeat string)
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:group 'auto-complete)
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(defcustom ac-ignore-case 'smart
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"Non-nil means auto-complete ignores case.
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If this value is `smart', auto-complete ignores case only when
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a prefix doen't contain any upper case letters."
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:type '(choice (const :tag "Yes" t)
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(const :tag "Smart" smart)
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(const :tag "No" nil))
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:group 'auto-complete)
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(defcustom ac-dwim t
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"Non-nil means `auto-complete' works based on Do What I Mean."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-use-menu-map nil
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"Non-nil means a special keymap `ac-menu-map' on completing menu will be used."
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:type 'boolean
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:group 'auto-complete)
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(defcustom ac-use-overriding-local-map nil
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"Non-nil means `overriding-local-map' will be used to hack for overriding key events on auto-copletion."
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:type 'boolean
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:group 'auto-complete)
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(defface ac-completion-face
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'((t (:foreground "darkgray" :underline t)))
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"Face for inline completion"
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:group 'auto-complete)
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(defface ac-candidate-face
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'((t (:background "lightgray" :foreground "black")))
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"Face for candidate."
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:group 'auto-complete)
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(defface ac-selection-face
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'((t (:background "steelblue" :foreground "white")))
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"Face for selected candidate."
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:group 'auto-complete)
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(defvar auto-complete-mode-hook nil
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"Hook for `auto-complete-mode'.")
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;;;; Internal variables
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(defvar auto-complete-mode nil
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"Dummy variable to suppress compiler warnings.")
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(defvar ac-cursor-color nil
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"Old cursor color.")
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(defvar ac-inline nil
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"Inline completion instance.")
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(defvar ac-menu nil
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"Menu instance.")
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(defvar ac-show-menu nil
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"Flag to show menu on timer tick.")
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(defvar ac-last-completion nil
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"Cons of prefix marker and selected item of last completion.")
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(defvar ac-quick-help nil
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"Quick help instance")
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(defvar ac-completing nil
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"Non-nil means `auto-complete-mode' is now working on completion.")
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(defvar ac-buffer nil
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"Buffer where auto-complete is started.")
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(defvar ac-point nil
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"Start point of prefix.")
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(defvar ac-last-point nil
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"Last point of updating pattern.")
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(defvar ac-prefix nil
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"Prefix string.")
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(defvaralias 'ac-target 'ac-prefix)
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(defvar ac-selected-candidate nil
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"Last selected candidate.")
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(defvar ac-common-part nil
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"Common part string of meaningful candidates.
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If there is no common part, this will be nil.")
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(defvar ac-whole-common-part nil
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"Common part string of whole candidates.
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If there is no common part, this will be nil.")
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(defvar ac-prefix-overlay nil
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"Overlay for prefix string.")
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(defvar ac-timer nil
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"Completion idle timer.")
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(defvar ac-show-menu-timer nil
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"Show menu idle timer.")
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(defvar ac-quick-help-timer nil
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"Quick help idle timer.")
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(defvar ac-triggered nil
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"Flag to update.")
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(defvar ac-limit nil
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"Limit number of candidates for each sources.")
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(defvar ac-candidates nil
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"Current candidates.")
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(defvar ac-candidates-cache nil
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"Candidates cache for individual sources.")
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(defvar ac-fuzzy-enable nil
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"Non-nil means fuzzy matching is enabled.")
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(defvar ac-dwim-enable nil
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"Non-nil means DWIM completion will be allowed.")
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(defvar ac-mode-map (make-sparse-keymap)
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"Auto-complete mode map. It is also used for trigger key command. See also `ac-trigger-key'.")
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(defvar ac-completing-map
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(let ((map (make-sparse-keymap)))
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(define-key map "\t" 'ac-expand)
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(define-key map "\r" 'ac-complete)
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(define-key map (kbd "M-TAB") 'auto-complete)
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(define-key map "\C-s" 'ac-isearch)
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(define-key map "\M-n" 'ac-next)
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(define-key map "\M-p" 'ac-previous)
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(define-key map [down] 'ac-next)
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(define-key map [up] 'ac-previous)
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(define-key map [f1] 'ac-help)
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(define-key map [M-f1] 'ac-persist-help)
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(define-key map (kbd "C-?") 'ac-help)
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(define-key map (kbd "C-M-?") 'ac-persist-help)
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(define-key map [C-down] 'ac-quick-help-scroll-down)
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(define-key map [C-up] 'ac-quick-help-scroll-up)
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(define-key map "\C-\M-n" 'ac-quick-help-scroll-down)
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(define-key map "\C-\M-p" 'ac-quick-help-scroll-up)
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(dotimes (i 9)
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(let ((symbol (intern (format "ac-complete-%d" (1+ i)))))
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(fset symbol
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`(lambda ()
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(interactive)
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(when (and (ac-menu-live-p) (popup-select ac-menu ,i))
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(ac-complete))))
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(define-key map (read-kbd-macro (format "M-%s" (1+ i))) symbol)))
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map)
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"Keymap for completion.")
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(defvaralias 'ac-complete-mode-map 'ac-completing-map)
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(defvar ac-menu-map
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(let ((map (make-sparse-keymap)))
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(define-key map "\C-n" 'ac-next)
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(define-key map "\C-p" 'ac-previous)
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(set-keymap-parent map ac-completing-map)
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map)
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"Keymap for completion on completing menu.")
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(defvar ac-current-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map ac-completing-map)
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map))
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(defvar ac-match-function 'all-completions
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"Default match function.")
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(defvar ac-prefix-definitions
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'((symbol . ac-prefix-symbol)
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(file . ac-prefix-file)
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(valid-file . ac-prefix-valid-file)
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(c-dot . ac-prefix-c-dot)
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(c-dot-ref . ac-prefix-c-dot-ref))
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"Prefix definitions for common use.")
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(defvar ac-sources '(ac-source-words-in-same-mode-buffers)
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"Sources for completion.")
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(make-variable-buffer-local 'ac-sources)
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(defvar ac-compiled-sources nil
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"Compiled source of `ac-sources'.")
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(defvar ac-current-sources nil
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"Current working sources. This is sublist of `ac-compiled-sources'.")
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(defvar ac-omni-completion-sources nil
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"Do not use this anymore.")
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(defvar ac-current-prefix-def nil)
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(defvar ac-ignoring-prefix-def nil)
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;;;; Intelligent completion history
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(defvar ac-comphist nil
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"Database of completion history.")
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(defsubst ac-comphist-make-tab ()
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(make-hash-table :test 'equal))
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(defsubst ac-comphist-tab (db)
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(nth 0 db))
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(defsubst ac-comphist-cache (db)
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(nth 1 db))
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(defun ac-comphist-make (&optional tab)
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(list (or tab (ac-comphist-make-tab)) (make-hash-table :test 'equal :weakness t)))
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(defun ac-comphist-get (db string &optional create)
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(let* ((tab (ac-comphist-tab db))
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(index (gethash string tab)))
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(when (and create (null index))
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(setq index (make-vector (length string) 0))
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(puthash string index tab))
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index))
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(defun ac-comphist-add (db string prefix)
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(setq prefix (min prefix (1- (length string))))
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(when (<= 0 prefix)
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(setq string (substring-no-properties string))
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(let ((stat (ac-comphist-get db string t)))
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(incf (aref stat prefix))
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(remhash string (ac-comphist-cache db)))))
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(defun ac-comphist-score (db string prefix)
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(setq prefix (min prefix (1- (length string))))
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(if (<= 0 prefix)
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(let ((cache (gethash string (ac-comphist-cache db))))
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(or (and cache (aref cache prefix))
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(let ((stat (ac-comphist-get db string))
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(score 0.0))
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(when stat
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(loop for p from 0 below (length string)
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;; sigmoid function
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with a = 5
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with d = (/ 6.0 a)
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for x = (- d (abs (- prefix p)))
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for r = (/ 1.0 (1+ (exp (* (- a) x))))
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do
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(incf score (* (aref stat p) r))))
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;; Weight by distance
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(incf score (max 0.0 (- 0.3 (/ (- (length string) prefix) 100.0))))
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(unless cache
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(setq cache (make-vector (length string) nil))
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(puthash string cache (ac-comphist-cache db)))
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(aset cache prefix score)
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score)))
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0.0))
|
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|
||
(defun ac-comphist-sort (db collection prefix &optional threshold)
|
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(let (result
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(n 0)
|
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(total 0)
|
||
(cur 0))
|
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(setq result (mapcar (lambda (a)
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||
(when (and cur threshold)
|
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(if (>= cur (* total threshold))
|
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(setq cur nil)
|
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(incf n)
|
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(incf cur (cdr a))))
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(car a))
|
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(sort (mapcar (lambda (string)
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(let ((score (ac-comphist-score db string prefix)))
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(incf total score)
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(cons string score)))
|
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collection)
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(lambda (a b) (< (cdr b) (cdr a))))))
|
||
(if threshold
|
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(cons n result)
|
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result)))
|
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|
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(defun ac-comphist-serialize (db)
|
||
(let (alist)
|
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(maphash (lambda (k v)
|
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(push (cons k v) alist))
|
||
(ac-comphist-tab db))
|
||
(list alist)))
|
||
|
||
(defun ac-comphist-deserialize (sexp)
|
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(condition-case nil
|
||
(ac-comphist-make (let ((tab (ac-comphist-make-tab)))
|
||
(mapc (lambda (cons)
|
||
(puthash (car cons) (cdr cons) tab))
|
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(nth 0 sexp))
|
||
tab))
|
||
(error (message "Invalid comphist db.") nil)))
|
||
|
||
(defun ac-comphist-init ()
|
||
(ac-comphist-load)
|
||
(add-hook 'kill-emacs-hook 'ac-comphist-save))
|
||
|
||
(defun ac-comphist-load ()
|
||
(interactive)
|
||
(let ((db (if (file-exists-p ac-comphist-file)
|
||
(ignore-errors
|
||
(with-temp-buffer
|
||
(insert-file-contents ac-comphist-file)
|
||
(goto-char (point-min))
|
||
(ac-comphist-deserialize (read (current-buffer))))))))
|
||
(setq ac-comphist (or db (ac-comphist-make)))))
|
||
|
||
(defun ac-comphist-save ()
|
||
(interactive)
|
||
(require 'pp)
|
||
(ignore-errors
|
||
(with-temp-buffer
|
||
(pp (ac-comphist-serialize ac-comphist) (current-buffer))
|
||
(write-region (point-min) (point-max) ac-comphist-file))))
|
||
|
||
|
||
|
||
;;;; Auto completion internals
|
||
|
||
(defun ac-menu-at-wrapper-line-p ()
|
||
"Return non-nil if current line is long and wrapped to next visual line."
|
||
(and (not truncate-lines)
|
||
(eq (line-beginning-position)
|
||
(save-excursion
|
||
(vertical-motion 1)
|
||
(line-beginning-position)))))
|
||
|
||
(defun ac-prefix-symbol ()
|
||
"Default prefix definition function."
|
||
(require 'thingatpt)
|
||
(car-safe (bounds-of-thing-at-point 'symbol)))
|
||
(defalias 'ac-prefix-default 'ac-prefix-symbol)
|
||
|
||
(defun ac-prefix-file ()
|
||
"File prefix."
|
||
(let ((point (re-search-backward "[\"<>' \t\r\n]" nil t)))
|
||
(if point (1+ point))))
|
||
|
||
(defun ac-prefix-valid-file ()
|
||
"Existed (or to be existed) file prefix."
|
||
(let* ((line-beg (line-beginning-position))
|
||
(end (point))
|
||
(start (or (let ((point (re-search-backward "[\"<>'= \t\r\n]" line-beg t)))
|
||
(if point (1+ point)))
|
||
line-beg))
|
||
(file (buffer-substring start end)))
|
||
(if (and file (or (string-match "^/" file)
|
||
(and (setq file (and (string-match "^[^/]*/" file)
|
||
(match-string 0 file)))
|
||
(file-directory-p file))))
|
||
start)))
|
||
|
||
(defun ac-prefix-c-dot ()
|
||
"C-like languages dot(.) prefix."
|
||
(if (re-search-backward "\\.\\(\\(?:[a-zA-Z0-9][_a-zA-Z0-9]*\\)?\\)\\=" nil t)
|
||
(match-beginning 1)))
|
||
|
||
(defun ac-prefix-c-dot-ref ()
|
||
"C-like languages dot(.) and reference(->) prefix."
|
||
(if (re-search-backward "\\(?:\\.\\|->\\)\\(\\(?:[a-zA-Z0-9][_a-zA-Z0-9]*\\)?\\)\\=" nil t)
|
||
(match-beginning 1)))
|
||
|
||
(defun ac-define-prefix (name prefix)
|
||
"Define new prefix definition.
|
||
You can not use it in source definition like (prefix . `NAME')."
|
||
(push (cons name prefix) ac-prefix-definitions))
|
||
|
||
(defun ac-match-substring (prefix candidates)
|
||
(loop with regexp = (regexp-quote prefix)
|
||
for candidate in candidates
|
||
if (string-match regexp candidate)
|
||
collect candidate))
|
||
|
||
(defsubst ac-source-entity (source)
|
||
(if (symbolp source)
|
||
(symbol-value source)
|
||
source))
|
||
|
||
(defun ac-source-available-p (source)
|
||
(if (and (symbolp source)
|
||
(get source 'available))
|
||
(eq (get source 'available) t)
|
||
(let* ((src (ac-source-entity source))
|
||
(avail-pair (assq 'available src))
|
||
(avail-cond (cdr avail-pair))
|
||
(available (and (if avail-pair
|
||
(cond
|
||
((symbolp avail-cond)
|
||
(funcall avail-cond))
|
||
((listp avail-cond)
|
||
(eval avail-cond)))
|
||
t)
|
||
(loop for feature in (assoc-default 'depends src)
|
||
unless (require feature nil t) return nil
|
||
finally return t))))
|
||
(if (symbolp source)
|
||
(put source 'available (if available t 'no)))
|
||
available)))
|
||
|
||
(defun ac-compile-sources (sources)
|
||
"Compiled `SOURCES' into expanded sources style."
|
||
(loop for source in sources
|
||
if (ac-source-available-p source)
|
||
do
|
||
(setq source (ac-source-entity source))
|
||
(flet ((add-attribute (name value &optional append) (add-to-list 'source (cons name value) append)))
|
||
;; prefix
|
||
(let* ((prefix (assoc 'prefix source))
|
||
(real (assoc-default (cdr prefix) ac-prefix-definitions)))
|
||
(cond
|
||
(real
|
||
(add-attribute 'prefix real))
|
||
((null prefix)
|
||
(add-attribute 'prefix 'ac-prefix-default))))
|
||
;; match
|
||
(let ((match (assq 'match source)))
|
||
(cond
|
||
((eq (cdr match) 'substring)
|
||
(setcdr match 'ac-match-substring)))))
|
||
and collect source))
|
||
|
||
(defun ac-compiled-sources ()
|
||
(or ac-compiled-sources
|
||
(setq ac-compiled-sources
|
||
(ac-compile-sources ac-sources))))
|
||
|
||
(defsubst ac-menu-live-p ()
|
||
(popup-live-p ac-menu))
|
||
|
||
(defun ac-menu-create (point width height)
|
||
(setq ac-menu
|
||
(popup-create point width height
|
||
:around t
|
||
:face 'ac-candidate-face
|
||
:selection-face 'ac-selection-face
|
||
:symbol t
|
||
:scroll-bar t
|
||
:margin-left 1)))
|
||
|
||
(defun ac-menu-delete ()
|
||
(when ac-menu
|
||
(popup-delete ac-menu)
|
||
(setq ac-menu)))
|
||
|
||
(defsubst ac-inline-marker ()
|
||
(nth 0 ac-inline))
|
||
|
||
(defsubst ac-inline-overlay ()
|
||
(nth 1 ac-inline))
|
||
|
||
(defsubst ac-inline-live-p ()
|
||
(and ac-inline (ac-inline-overlay) t))
|
||
|
||
(defun ac-inline-show (point string)
|
||
(unless ac-inline
|
||
(setq ac-inline (list (make-marker) nil)))
|
||
(save-excursion
|
||
(let ((overlay (ac-inline-overlay))
|
||
(width 0)
|
||
(string-width (string-width string))
|
||
(length 0)
|
||
(original-string string))
|
||
;; Calculate string space to show completion
|
||
(goto-char point)
|
||
(let (c)
|
||
(while (and (not (eolp))
|
||
(< width string-width)
|
||
(setq c (char-after))
|
||
(not (eq c ?\t))) ; special case for tab
|
||
(incf width (char-width c))
|
||
(incf length)
|
||
(forward-char)))
|
||
|
||
;; Show completion
|
||
(goto-char point)
|
||
(cond
|
||
((= width 0)
|
||
(set-marker (ac-inline-marker) point)
|
||
(let ((buffer-undo-list t))
|
||
(insert " "))
|
||
(setq width 1
|
||
length 1))
|
||
((<= width string-width)
|
||
;; No space to show
|
||
;; Do nothing
|
||
)
|
||
((> width string-width)
|
||
;; Need to fill space
|
||
(setq string (concat string (make-string (- width string-width) ? )))))
|
||
(setq string (propertize string 'face 'ac-completion-face))
|
||
(if overlay
|
||
(progn
|
||
(move-overlay overlay point (+ point length))
|
||
(overlay-put overlay 'invisible nil))
|
||
(setq overlay (make-overlay point (+ point length)))
|
||
(setf (nth 1 ac-inline) overlay)
|
||
(overlay-put overlay 'priority 9999)
|
||
;; Help prefix-overlay in some cases
|
||
(overlay-put overlay 'keymap ac-current-map))
|
||
(overlay-put overlay 'display (substring string 0 1))
|
||
;; TODO no width but char
|
||
(overlay-put overlay 'after-string (substring string 1))
|
||
(overlay-put overlay 'string original-string))))
|
||
|
||
(defun ac-inline-delete ()
|
||
(when (ac-inline-live-p)
|
||
(ac-inline-hide)
|
||
(delete-overlay (ac-inline-overlay))
|
||
(setq ac-inline nil)))
|
||
|
||
(defun ac-inline-hide ()
|
||
(when (ac-inline-live-p)
|
||
(let ((overlay (ac-inline-overlay))
|
||
(marker (ac-inline-marker))
|
||
(buffer-undo-list t))
|
||
(when overlay
|
||
(when (marker-position marker)
|
||
(save-excursion
|
||
(goto-char marker)
|
||
(delete-char 1)
|
||
(set-marker marker nil)))
|
||
(move-overlay overlay (point-min) (point-min))
|
||
(overlay-put overlay 'invisible t)
|
||
(overlay-put overlay 'display nil)
|
||
(overlay-put overlay 'after-string nil)))))
|
||
|
||
(defun ac-inline-update ()
|
||
(if (and ac-completing ac-prefix (stringp ac-common-part))
|
||
(let ((common-part-length (length ac-common-part))
|
||
(prefix-length (length ac-prefix)))
|
||
(if (> common-part-length prefix-length)
|
||
(progn
|
||
(ac-inline-hide)
|
||
(ac-inline-show (point) (substring ac-common-part prefix-length)))
|
||
(ac-inline-delete)))
|
||
(ac-inline-delete)))
|
||
|
||
(defun ac-put-prefix-overlay ()
|
||
(unless ac-prefix-overlay
|
||
(let (newline)
|
||
;; Insert newline to make sure that cursor always on the overlay
|
||
(when (and (eq ac-point (point-max))
|
||
(eq ac-point (point)))
|
||
(popup-save-buffer-state
|
||
(insert "\n"))
|
||
(setq newline t))
|
||
(setq ac-prefix-overlay (make-overlay ac-point (1+ (point)) nil t t))
|
||
(overlay-put ac-prefix-overlay 'priority 9999)
|
||
(overlay-put ac-prefix-overlay 'keymap (make-sparse-keymap))
|
||
(overlay-put ac-prefix-overlay 'newline newline))))
|
||
|
||
(defun ac-remove-prefix-overlay ()
|
||
(when ac-prefix-overlay
|
||
(when (overlay-get ac-prefix-overlay 'newline)
|
||
;; Remove inserted newline
|
||
(popup-save-buffer-state
|
||
(goto-char (point-max))
|
||
(if (eq (char-before) ?\n)
|
||
(delete-char -1))))
|
||
(delete-overlay ac-prefix-overlay)))
|
||
|
||
(defun ac-activate-completing-map ()
|
||
(if (and ac-show-menu ac-use-menu-map)
|
||
(set-keymap-parent ac-current-map ac-menu-map))
|
||
(when (and ac-use-overriding-local-map
|
||
(null overriding-terminal-local-map))
|
||
(setq overriding-terminal-local-map ac-current-map))
|
||
(when ac-prefix-overlay
|
||
(set-keymap-parent (overlay-get ac-prefix-overlay 'keymap) ac-current-map)))
|
||
|
||
(defun ac-deactivate-completing-map ()
|
||
(set-keymap-parent ac-current-map ac-completing-map)
|
||
(when (and ac-use-overriding-local-map
|
||
(eq overriding-terminal-local-map ac-current-map))
|
||
(setq overriding-terminal-local-map nil))
|
||
(when ac-prefix-overlay
|
||
(set-keymap-parent (overlay-get ac-prefix-overlay 'keymap) nil)))
|
||
|
||
(defsubst ac-selected-candidate ()
|
||
(if ac-menu
|
||
(popup-selected-item ac-menu)))
|
||
|
||
(defun ac-prefix (requires ignore-list)
|
||
(loop with current = (point)
|
||
with point
|
||
with prefix-def
|
||
with sources
|
||
for source in (ac-compiled-sources)
|
||
for prefix = (assoc-default 'prefix source)
|
||
for req = (or (assoc-default 'requires source) requires 1)
|
||
|
||
if (null prefix-def)
|
||
do
|
||
(unless (member prefix ignore-list)
|
||
(save-excursion
|
||
(setq point (cond
|
||
((symbolp prefix)
|
||
(funcall prefix))
|
||
((stringp prefix)
|
||
(and (re-search-backward (concat prefix "\\=") nil t)
|
||
(or (match-beginning 1) (match-beginning 0))))
|
||
((stringp (car-safe prefix))
|
||
(let ((regexp (nth 0 prefix))
|
||
(end (nth 1 prefix))
|
||
(group (nth 2 prefix)))
|
||
(and (re-search-backward (concat regexp "\\=") nil t)
|
||
(funcall (if end 'match-end 'match-beginning)
|
||
(or group 0)))))
|
||
(t
|
||
(eval prefix))))
|
||
(if (and point
|
||
(integerp req)
|
||
(< (- current point) req))
|
||
(setq point nil))
|
||
(if point
|
||
(setq prefix-def prefix))))
|
||
|
||
if (equal prefix prefix-def) do (push source sources)
|
||
|
||
finally return
|
||
(and point (list prefix-def point (nreverse sources)))))
|
||
|
||
(defun ac-init ()
|
||
"Initialize current sources to start completion."
|
||
(setq ac-candidates-cache nil)
|
||
(loop for source in ac-current-sources
|
||
for function = (assoc-default 'init source)
|
||
if function do
|
||
(save-excursion
|
||
(cond
|
||
((functionp function)
|
||
(funcall function))
|
||
(t
|
||
(eval function))))))
|
||
|
||
(defun ac-candidates-1 (source)
|
||
(let* ((do-cache (assq 'cache source))
|
||
(function (assoc-default 'candidates source))
|
||
(action (assoc-default 'action source))
|
||
(document (assoc-default 'document source))
|
||
(symbol (assoc-default 'symbol source))
|
||
(ac-limit (or (assoc-default 'limit source) ac-limit))
|
||
(face (or (assoc-default 'face source) (assoc-default 'candidate-face source)))
|
||
(selection-face (assoc-default 'selection-face source))
|
||
(cache (and do-cache (assq source ac-candidates-cache)))
|
||
(candidates (cdr cache)))
|
||
(unless cache
|
||
(setq candidates (save-excursion
|
||
(cond
|
||
((functionp function)
|
||
(funcall function))
|
||
(t
|
||
(eval function)))))
|
||
;; Convert (name value) format candidates into name with text properties.
|
||
(setq candidates (mapcar (lambda (candidate)
|
||
(if (consp candidate)
|
||
(propertize (car candidate) 'value (cdr candidate))
|
||
candidate))
|
||
candidates))
|
||
(when do-cache
|
||
(push (cons source candidates) ac-candidates-cache)))
|
||
(setq candidates (funcall (or (assoc-default 'match source)
|
||
ac-match-function)
|
||
ac-prefix candidates))
|
||
;; Remove extra items regarding to ac-limit
|
||
(if (and (integerp ac-limit) (> ac-limit 1) (> (length candidates) ac-limit))
|
||
(setcdr (nthcdr (1- ac-limit) candidates) nil))
|
||
;; Put candidate properties
|
||
(setq candidates (mapcar (lambda (candidate)
|
||
(popup-item-propertize candidate
|
||
'action action
|
||
'symbol symbol
|
||
'document document
|
||
'popup-face face
|
||
'selection-face selection-face))
|
||
candidates))
|
||
candidates))
|
||
|
||
(defun ac-candidates ()
|
||
"Produce candidates for current sources."
|
||
(loop with completion-ignore-case = (or (eq ac-ignore-case t)
|
||
(and (eq ac-ignore-case 'smart)
|
||
(let ((case-fold-search nil)) (not (string-match "[[:upper:]]" ac-prefix)))))
|
||
with case-fold-search = completion-ignore-case
|
||
with prefix-len = (length ac-prefix)
|
||
for source in ac-current-sources
|
||
append (ac-candidates-1 source) into candidates
|
||
finally return
|
||
(progn
|
||
(delete-dups candidates)
|
||
(if (and ac-use-comphist ac-comphist)
|
||
(if ac-show-menu
|
||
(let* ((pair (ac-comphist-sort ac-comphist candidates prefix-len ac-comphist-threshold))
|
||
(n (car pair))
|
||
(result (cdr pair))
|
||
(cons (if (> n 0) (nthcdr (1- n) result)))
|
||
(cdr (cdr cons)))
|
||
(if cons (setcdr cons nil))
|
||
(setq ac-common-part (try-completion ac-prefix result))
|
||
(setq ac-whole-common-part (try-completion ac-prefix candidates))
|
||
(if cons (setcdr cons cdr))
|
||
result)
|
||
(setq candidates (ac-comphist-sort ac-comphist candidates prefix-len))
|
||
(setq ac-common-part (if candidates (popup-x-to-string (car candidates))))
|
||
(setq ac-whole-common-part (try-completion ac-prefix candidates))
|
||
candidates)
|
||
(setq ac-common-part (try-completion ac-prefix candidates))
|
||
(setq ac-whole-common-part ac-common-part)
|
||
candidates))))
|
||
|
||
(defun ac-update-candidates (cursor scroll-top)
|
||
"Update candidates of menu to `ac-candidates' and redraw it."
|
||
(setf (popup-cursor ac-menu) cursor
|
||
(popup-scroll-top ac-menu) scroll-top)
|
||
(setq ac-dwim-enable (= (length ac-candidates) 1))
|
||
(if ac-candidates
|
||
(progn
|
||
(setq ac-completing t)
|
||
(ac-activate-completing-map))
|
||
(setq ac-completing nil)
|
||
(ac-deactivate-completing-map))
|
||
(ac-inline-update)
|
||
(popup-set-list ac-menu ac-candidates)
|
||
(if (and (not ac-fuzzy-enable)
|
||
(<= (length ac-candidates) 1))
|
||
(popup-hide ac-menu)
|
||
(if ac-show-menu
|
||
(popup-draw ac-menu))))
|
||
|
||
(defun ac-reposition ()
|
||
"Force to redraw candidate menu with current `ac-candidates'."
|
||
(let ((cursor (popup-cursor ac-menu))
|
||
(scroll-top (popup-scroll-top ac-menu)))
|
||
(ac-menu-delete)
|
||
(ac-menu-create ac-point (popup-preferred-width ac-candidates) (popup-height ac-menu))
|
||
(ac-update-candidates cursor scroll-top)))
|
||
|
||
(defun ac-cleanup ()
|
||
"Cleanup auto completion."
|
||
(if ac-cursor-color
|
||
(set-cursor-color ac-cursor-color))
|
||
(when (and ac-use-comphist ac-comphist)
|
||
(when (and (null ac-selected-candidate)
|
||
(member ac-prefix ac-candidates))
|
||
;; Assume candidate is selected by just typing
|
||
(setq ac-selected-candidate ac-prefix)
|
||
(setq ac-last-point ac-point))
|
||
(when ac-selected-candidate
|
||
(ac-comphist-add ac-comphist
|
||
ac-selected-candidate
|
||
(if ac-last-point
|
||
(- ac-last-point ac-point)
|
||
(length ac-prefix)))))
|
||
(ac-deactivate-completing-map)
|
||
(ac-remove-prefix-overlay)
|
||
(ac-remove-quick-help)
|
||
(ac-inline-delete)
|
||
(ac-menu-delete)
|
||
(ac-cancel-timer)
|
||
(ac-cancel-show-menu-timer)
|
||
(ac-cancel-quick-help-timer)
|
||
(setq ac-cursor-color nil
|
||
ac-inline nil
|
||
ac-show-menu nil
|
||
ac-menu nil
|
||
ac-completing nil
|
||
ac-point nil
|
||
ac-last-point nil
|
||
ac-prefix nil
|
||
ac-prefix-overlay nil
|
||
ac-selected-candidate nil
|
||
ac-common-part nil
|
||
ac-whole-common-part nil
|
||
ac-triggered nil
|
||
ac-limit nil
|
||
ac-candidates nil
|
||
ac-candidates-cache nil
|
||
ac-fuzzy-enable nil
|
||
ac-dwim-enable nil
|
||
ac-compiled-sources nil
|
||
ac-current-sources nil
|
||
ac-current-prefix-def nil
|
||
ac-ignoring-prefix-def nil))
|
||
|
||
(defsubst ac-abort ()
|
||
"Abort completion."
|
||
(ac-cleanup))
|
||
|
||
(defun ac-expand-string (string &optional remove-undo-boundary)
|
||
"Expand `STRING' into the buffer and update `ac-prefix' to `STRING'.
|
||
This function records deletion and insertion sequences by `undo-boundary'.
|
||
If `remove-undo-boundary' is non-nil, this function also removes `undo-boundary'
|
||
that have been made before in this function."
|
||
(when (not (equal string (buffer-substring ac-point (point))))
|
||
(undo-boundary)
|
||
;; We can't use primitive-undo since it undoes by
|
||
;; groups, divided by boundaries.
|
||
;; We don't want boundary between deletion and insertion.
|
||
;; So do it manually.
|
||
;; Delete region silently for undo:
|
||
(if remove-undo-boundary
|
||
(progn
|
||
(let (buffer-undo-list)
|
||
(save-excursion
|
||
(delete-region ac-point (point))))
|
||
(setq buffer-undo-list
|
||
(nthcdr 2 buffer-undo-list)))
|
||
(delete-region ac-point (point)))
|
||
(insert string)
|
||
;; Sometimes, possible when omni-completion used, (insert) added
|
||
;; to buffer-undo-list strange record about position changes.
|
||
;; Delete it here:
|
||
(when (and remove-undo-boundary
|
||
(integerp (cadr buffer-undo-list)))
|
||
(setcdr buffer-undo-list (nthcdr 2 buffer-undo-list)))
|
||
(undo-boundary)
|
||
(setq ac-selected-candidate string)
|
||
(setq ac-prefix string)))
|
||
|
||
(defun ac-set-trigger-key (key)
|
||
"Set `ac-trigger-key' to `KEY'. It is recommemded to use this function instead of calling `setq'."
|
||
;; Remove old mapping
|
||
(when ac-trigger-key
|
||
(define-key ac-mode-map (read-kbd-macro ac-trigger-key) nil))
|
||
|
||
;; Make new mapping
|
||
(setq ac-trigger-key key)
|
||
(when key
|
||
(define-key ac-mode-map (read-kbd-macro key) 'ac-trigger-key-command)))
|
||
|
||
(defun ac-set-timer ()
|
||
(unless ac-timer
|
||
(setq ac-timer (run-with-idle-timer ac-delay ac-delay 'ac-update-greedy))))
|
||
|
||
(defun ac-cancel-timer ()
|
||
(when (timerp ac-timer)
|
||
(cancel-timer ac-timer)
|
||
(setq ac-timer nil)))
|
||
|
||
(defun ac-update (&optional force)
|
||
(when (and auto-complete-mode
|
||
ac-prefix
|
||
(or ac-triggered
|
||
force)
|
||
(not isearch-mode))
|
||
(ac-put-prefix-overlay)
|
||
(setq ac-candidates (ac-candidates))
|
||
(let ((preferred-width (popup-preferred-width ac-candidates)))
|
||
;; Reposition if needed
|
||
(when (or (null ac-menu)
|
||
(>= (popup-width ac-menu) preferred-width)
|
||
(<= (popup-width ac-menu) (- preferred-width 10))
|
||
(and (> (popup-direction ac-menu) 0)
|
||
(ac-menu-at-wrapper-line-p)))
|
||
(ac-inline-hide) ; Hide overlay to calculate correct column
|
||
(ac-menu-delete)
|
||
(ac-menu-create ac-point preferred-width ac-menu-height)))
|
||
(ac-update-candidates 0 0)
|
||
t))
|
||
|
||
(defun ac-update-greedy (&optional force)
|
||
(let (result)
|
||
(while (when (and (setq result (ac-update force))
|
||
(null ac-candidates))
|
||
(add-to-list 'ac-ignoring-prefix-def ac-current-prefix-def)
|
||
(ac-start :force-init t)
|
||
ac-current-prefix-def))
|
||
result))
|
||
|
||
(defun ac-set-show-menu-timer ()
|
||
(when (and (or (integerp ac-auto-show-menu) (floatp ac-auto-show-menu))
|
||
(null ac-show-menu-timer))
|
||
(setq ac-show-menu-timer (run-with-idle-timer ac-auto-show-menu ac-auto-show-menu 'ac-show-menu))))
|
||
|
||
(defun ac-cancel-show-menu-timer ()
|
||
(when (timerp ac-show-menu-timer)
|
||
(cancel-timer ac-show-menu-timer)
|
||
(setq ac-show-menu-timer nil)))
|
||
|
||
(defun ac-show-menu ()
|
||
(when (not (eq ac-show-menu t))
|
||
(setq ac-show-menu t)
|
||
(ac-inline-hide)
|
||
(ac-remove-quick-help)
|
||
(ac-update t)))
|
||
|
||
(defun ac-help (&optional persist)
|
||
(interactive "P")
|
||
(when ac-menu
|
||
(popup-menu-show-help ac-menu persist)))
|
||
|
||
(defun ac-persist-help ()
|
||
(interactive)
|
||
(ac-help t))
|
||
|
||
(defun ac-last-help (&optional persist)
|
||
(interactive "P")
|
||
(when ac-last-completion
|
||
(popup-item-show-help (cdr ac-last-completion) persist)))
|
||
|
||
(defun ac-last-persist-help ()
|
||
(interactive)
|
||
(ac-last-help t))
|
||
|
||
(defun ac-set-quick-help-timer ()
|
||
(when (and ac-use-quick-help
|
||
(null ac-quick-help-timer))
|
||
(setq ac-quick-help-timer (run-with-idle-timer ac-quick-help-delay ac-quick-help-delay 'ac-quick-help))))
|
||
|
||
(defun ac-cancel-quick-help-timer ()
|
||
(when (timerp ac-quick-help-timer)
|
||
(cancel-timer ac-quick-help-timer)
|
||
(setq ac-quick-help-timer nil)))
|
||
|
||
(defun ac-pos-tip-show-quick-help (menu &optional item &rest args)
|
||
(let* ((point (plist-get args :point))
|
||
(around nil)
|
||
(parent-offset (popup-offset menu))
|
||
(doc (popup-menu-documentation menu item)))
|
||
(when (stringp doc)
|
||
(if (popup-hidden-p menu)
|
||
(setq around t)
|
||
(setq point nil))
|
||
(with-no-warnings
|
||
(pos-tip-show doc
|
||
'popup-tip-face
|
||
(or point
|
||
(and menu
|
||
(popup-child-point menu parent-offset))
|
||
(point))
|
||
nil 0
|
||
popup-tip-max-width
|
||
nil nil
|
||
(and (not around) 0))
|
||
(unless (plist-get args :nowait)
|
||
(clear-this-command-keys)
|
||
(unwind-protect
|
||
(push (read-event (plist-get args :prompt)) unread-command-events)
|
||
(pos-tip-hide))
|
||
t)))))
|
||
|
||
(defun ac-quick-help (&optional force)
|
||
(interactive)
|
||
(when (and (or force (null this-command))
|
||
(ac-menu-live-p)
|
||
(null ac-quick-help))
|
||
(setq ac-quick-help
|
||
(funcall (if (and ac-quick-help-prefer-x
|
||
(eq window-system 'x)
|
||
(featurep 'pos-tip))
|
||
'ac-pos-tip-show-quick-help
|
||
'popup-menu-show-quick-help)
|
||
ac-menu nil
|
||
:point ac-point
|
||
:height ac-quick-help-height
|
||
:nowait t))))
|
||
|
||
(defun ac-remove-quick-help ()
|
||
(when ac-quick-help
|
||
(popup-delete ac-quick-help)
|
||
(setq ac-quick-help nil)))
|
||
|
||
(defun ac-last-quick-help ()
|
||
(interactive)
|
||
(when (and ac-last-completion
|
||
(eq (marker-buffer (car ac-last-completion))
|
||
(current-buffer)))
|
||
(let ((doc (popup-item-documentation (cdr ac-last-completion)))
|
||
(point (marker-position (car ac-last-completion))))
|
||
(when (stringp doc)
|
||
(if (and ac-quick-help-prefer-x
|
||
(eq window-system 'x)
|
||
(featurep 'pos-tip))
|
||
(with-no-warnings (pos-tip-show doc nil point nil 0))
|
||
(popup-tip doc
|
||
:point point
|
||
:around t
|
||
:scroll-bar t
|
||
:margin t))))))
|
||
|
||
(defmacro ac-define-quick-help-command (name arglist &rest body)
|
||
(declare (indent 2))
|
||
`(progn
|
||
(defun ,name ,arglist ,@body)
|
||
(put ',name 'ac-quick-help-command t)))
|
||
|
||
(ac-define-quick-help-command ac-quick-help-scroll-down ()
|
||
(interactive)
|
||
(when ac-quick-help
|
||
(popup-scroll-down ac-quick-help)))
|
||
|
||
(ac-define-quick-help-command ac-quick-help-scroll-up ()
|
||
(interactive)
|
||
(when ac-quick-help
|
||
(popup-scroll-up ac-quick-help)))
|
||
|
||
|
||
|
||
;;;; Auto completion isearch
|
||
|
||
(defun ac-isearch-callback (list)
|
||
(setq ac-dwim-enable (eq (length list) 1)))
|
||
|
||
(defun ac-isearch ()
|
||
(interactive)
|
||
(when (ac-menu-live-p)
|
||
(ac-cancel-show-menu-timer)
|
||
(ac-cancel-quick-help-timer)
|
||
(ac-show-menu)
|
||
(popup-isearch ac-menu :callback 'ac-isearch-callback)))
|
||
|
||
|
||
|
||
;;;; Auto completion commands
|
||
|
||
(defun auto-complete (&optional sources)
|
||
"Start auto-completion at current point."
|
||
(interactive)
|
||
(let ((menu-live (ac-menu-live-p))
|
||
(inline-live (ac-inline-live-p)))
|
||
(ac-abort)
|
||
(let ((ac-sources (or sources ac-sources)))
|
||
(if (or ac-show-menu-immediately-on-auto-complete
|
||
inline-live)
|
||
(setq ac-show-menu t))
|
||
(ac-start))
|
||
(when (ac-update-greedy t)
|
||
;; TODO Not to cause inline completion to be disrupted.
|
||
(if (ac-inline-live-p)
|
||
(ac-inline-hide))
|
||
;; Not to expand when it is first time to complete
|
||
(when (and (or (and (not ac-expand-on-auto-complete)
|
||
(> (length ac-candidates) 1)
|
||
(not menu-live))
|
||
(not (let ((ac-common-part ac-whole-common-part))
|
||
(ac-expand-common))))
|
||
ac-use-fuzzy
|
||
(null ac-candidates))
|
||
(ac-fuzzy-complete)))))
|
||
|
||
(defun ac-fuzzy-complete ()
|
||
"Start fuzzy completion at current point."
|
||
(interactive)
|
||
(when (require 'fuzzy nil)
|
||
(unless (ac-menu-live-p)
|
||
(ac-start))
|
||
(let ((ac-match-function 'fuzzy-all-completions))
|
||
(unless ac-cursor-color
|
||
(setq ac-cursor-color (frame-parameter (selected-frame) 'cursor-color)))
|
||
(if ac-fuzzy-cursor-color
|
||
(set-cursor-color ac-fuzzy-cursor-color))
|
||
(setq ac-show-menu t)
|
||
(setq ac-fuzzy-enable t)
|
||
(setq ac-triggered nil)
|
||
(ac-update t)))
|
||
t)
|
||
|
||
(defun ac-next ()
|
||
"Select next candidate."
|
||
(interactive)
|
||
(when (ac-menu-live-p)
|
||
(popup-next ac-menu)
|
||
(setq ac-show-menu t)
|
||
(if (eq this-command 'ac-next)
|
||
(setq ac-dwim-enable t))))
|
||
|
||
(defun ac-previous ()
|
||
"Select previous candidate."
|
||
(interactive)
|
||
(when (ac-menu-live-p)
|
||
(popup-previous ac-menu)
|
||
(setq ac-show-menu t)
|
||
(if (eq this-command 'ac-previous)
|
||
(setq ac-dwim-enable t))))
|
||
|
||
(defun ac-expand ()
|
||
"Try expand, and if expanded twice, select next candidate."
|
||
(interactive)
|
||
(unless (ac-expand-common)
|
||
(let ((string (ac-selected-candidate)))
|
||
(when string
|
||
(when (equal ac-prefix string)
|
||
(ac-next)
|
||
(setq string (ac-selected-candidate)))
|
||
(ac-expand-string string (eq last-command this-command))
|
||
;; Do reposition if menu at long line
|
||
(if (and (> (popup-direction ac-menu) 0)
|
||
(ac-menu-at-wrapper-line-p))
|
||
(ac-reposition))
|
||
(setq ac-show-menu t)
|
||
string))))
|
||
|
||
(defun ac-expand-common ()
|
||
"Try to expand meaningful common part."
|
||
(interactive)
|
||
(if (and ac-dwim ac-dwim-enable)
|
||
(ac-complete)
|
||
(when (and (ac-inline-live-p)
|
||
ac-common-part)
|
||
(ac-inline-hide)
|
||
(ac-expand-string ac-common-part (eq last-command this-command))
|
||
(setq ac-common-part nil)
|
||
t)))
|
||
|
||
(defun ac-complete ()
|
||
"Try complete."
|
||
(interactive)
|
||
(let* ((candidate (ac-selected-candidate))
|
||
(action (popup-item-property candidate 'action))
|
||
(fallback nil))
|
||
(when candidate
|
||
(unless (ac-expand-string candidate)
|
||
(setq fallback t))
|
||
;; Remember to show help later
|
||
(when (and ac-point candidate)
|
||
(unless ac-last-completion
|
||
(setq ac-last-completion (cons (make-marker) nil)))
|
||
(set-marker (car ac-last-completion) ac-point ac-buffer)
|
||
(setcdr ac-last-completion candidate)))
|
||
(ac-abort)
|
||
(cond
|
||
(action
|
||
(funcall action))
|
||
(fallback
|
||
(ac-fallback-command)))
|
||
candidate))
|
||
|
||
(defun* ac-start (&key
|
||
requires
|
||
force-init)
|
||
"Start completion."
|
||
(interactive)
|
||
(if (not auto-complete-mode)
|
||
(message "auto-complete-mode is not enabled")
|
||
(let* ((info (ac-prefix requires ac-ignoring-prefix-def))
|
||
(prefix-def (nth 0 info))
|
||
(point (nth 1 info))
|
||
(sources (nth 2 info))
|
||
prefix
|
||
(init (or force-init (not (eq ac-point point)))))
|
||
(if (or (null point)
|
||
(member (setq prefix (buffer-substring-no-properties point (point)))
|
||
ac-ignores))
|
||
(prog1 nil
|
||
(ac-abort))
|
||
(unless ac-cursor-color
|
||
(setq ac-cursor-color (frame-parameter (selected-frame) 'cursor-color)))
|
||
(setq ac-show-menu (or ac-show-menu (if (eq ac-auto-show-menu t) t))
|
||
ac-current-sources sources
|
||
ac-buffer (current-buffer)
|
||
ac-point point
|
||
ac-prefix prefix
|
||
ac-limit ac-candidate-limit
|
||
ac-triggered t
|
||
ac-current-prefix-def prefix-def)
|
||
(when (or init (null ac-prefix-overlay))
|
||
(ac-init))
|
||
(ac-set-timer)
|
||
(ac-set-show-menu-timer)
|
||
(ac-set-quick-help-timer)
|
||
(ac-put-prefix-overlay)))))
|
||
|
||
(defun ac-stop ()
|
||
"Stop completiong."
|
||
(interactive)
|
||
(setq ac-selected-candidate nil)
|
||
(ac-abort))
|
||
|
||
(defun ac-trigger-key-command (&optional force)
|
||
(interactive "P")
|
||
(if (or force (ac-trigger-command-p last-command))
|
||
(auto-complete)
|
||
(ac-fallback-command 'ac-trigger-key-command)))
|
||
|
||
|
||
|
||
;;;; Basic cache facility
|
||
|
||
(defvar ac-clear-variables-every-minute-timer nil)
|
||
(defvar ac-clear-variables-after-save nil)
|
||
(defvar ac-clear-variables-every-minute nil)
|
||
(defvar ac-minutes-counter 0)
|
||
|
||
(defun ac-clear-variable-after-save (variable &optional pred)
|
||
(add-to-list 'ac-clear-variables-after-save (cons variable pred)))
|
||
|
||
(defun ac-clear-variables-after-save ()
|
||
(dolist (pair ac-clear-variables-after-save)
|
||
(if (or (null (cdr pair))
|
||
(funcall (cdr pair)))
|
||
(set (car pair) nil))))
|
||
|
||
(defun ac-clear-variable-every-minutes (variable minutes)
|
||
(add-to-list 'ac-clear-variables-every-minute (cons variable minutes)))
|
||
|
||
(defun ac-clear-variable-every-minute (variable)
|
||
(ac-clear-variable-every-minutes variable 1))
|
||
|
||
(defun ac-clear-variable-every-10-minutes (variable)
|
||
(ac-clear-variable-every-minutes variable 10))
|
||
|
||
(defun ac-clear-variables-every-minute ()
|
||
(incf ac-minutes-counter)
|
||
(dolist (pair ac-clear-variables-every-minute)
|
||
(if (eq (% ac-minutes-counter (cdr pair)) 0)
|
||
(set (car pair) nil))))
|
||
|
||
|
||
|
||
;;;; Auto complete mode
|
||
|
||
(defun ac-cursor-on-diable-face-p (&optional point)
|
||
(memq (get-text-property (or point (point)) 'face) ac-disable-faces))
|
||
|
||
(defun ac-trigger-command-p (command)
|
||
"Return non-nil if `COMMAND' is a trigger command."
|
||
(and (symbolp command)
|
||
(or (memq command ac-trigger-commands)
|
||
(string-match "self-insert-command" (symbol-name command))
|
||
(string-match "electric" (symbol-name command)))))
|
||
|
||
(defun ac-fallback-command (&optional except-command)
|
||
(let* ((auto-complete-mode nil)
|
||
(keys (this-command-keys-vector))
|
||
(command (if keys (key-binding keys))))
|
||
(when (and (commandp command)
|
||
(not (eq command except-command)))
|
||
(setq this-command command)
|
||
(call-interactively command))))
|
||
|
||
(defun ac-compatible-package-command-p (command)
|
||
"Return non-nil if `COMMAND' is compatible with auto-complete."
|
||
(and (symbolp command)
|
||
(string-match ac-compatible-packages-regexp (symbol-name command))))
|
||
|
||
(defun ac-handle-pre-command ()
|
||
(condition-case var
|
||
(if (or (setq ac-triggered (and (not ac-fuzzy-enable) ; ignore key storkes in fuzzy mode
|
||
(or (eq this-command 'auto-complete) ; special case
|
||
(ac-trigger-command-p this-command)
|
||
(and ac-completing
|
||
(memq this-command ac-trigger-commands-on-completing)))
|
||
(not (ac-cursor-on-diable-face-p))))
|
||
(ac-compatible-package-command-p this-command))
|
||
(progn
|
||
(if (or (not (symbolp this-command))
|
||
(not (get this-command 'ac-quick-help-command)))
|
||
(ac-remove-quick-help))
|
||
;; Not to cause inline completion to be disrupted.
|
||
(ac-inline-hide))
|
||
(ac-abort))
|
||
(error (ac-error var))))
|
||
|
||
(defun ac-handle-post-command ()
|
||
(condition-case var
|
||
(when (and ac-triggered
|
||
(or ac-auto-start
|
||
ac-completing)
|
||
(not isearch-mode))
|
||
(setq ac-last-point (point))
|
||
(ac-start :requires (unless ac-completing ac-auto-start))
|
||
(ac-inline-update))
|
||
(error (ac-error var))))
|
||
|
||
(defun ac-setup ()
|
||
(if ac-trigger-key
|
||
(ac-set-trigger-key ac-trigger-key))
|
||
(if ac-use-comphist
|
||
(ac-comphist-init))
|
||
(unless ac-clear-variables-every-minute-timer
|
||
(setq ac-clear-variables-every-minute-timer (run-with-timer 60 60 'ac-clear-variables-every-minute)))
|
||
(if ac-stop-flymake-on-completing
|
||
(defadvice flymake-on-timer-event (around ac-flymake-stop-advice activate)
|
||
(unless ac-completing
|
||
ad-do-it))
|
||
(ad-disable-advice 'flymake-on-timer-event 'around 'ac-flymake-stop-advice)))
|
||
|
||
(define-minor-mode auto-complete-mode
|
||
"AutoComplete mode"
|
||
:lighter " AC"
|
||
:keymap ac-mode-map
|
||
:group 'auto-complete
|
||
(if auto-complete-mode
|
||
(progn
|
||
(ac-setup)
|
||
(add-hook 'pre-command-hook 'ac-handle-pre-command nil t)
|
||
(add-hook 'post-command-hook 'ac-handle-post-command nil t)
|
||
(add-hook 'after-save-hook 'ac-clear-variables-after-save nil t)
|
||
(run-hooks 'auto-complete-mode-hook))
|
||
(remove-hook 'pre-command-hook 'ac-handle-pre-command t)
|
||
(remove-hook 'post-command-hook 'ac-handle-post-command t)
|
||
(remove-hook 'after-save-hook 'ac-clear-variables-after-save t)
|
||
(ac-abort)))
|
||
|
||
(defun auto-complete-mode-maybe ()
|
||
"What buffer `auto-complete-mode' prefers."
|
||
(if (and (not (minibufferp (current-buffer)))
|
||
(memq major-mode ac-modes))
|
||
(auto-complete-mode 1)))
|
||
|
||
(define-global-minor-mode global-auto-complete-mode
|
||
auto-complete-mode auto-complete-mode-maybe
|
||
:group 'auto-complete)
|
||
|
||
|
||
|
||
;;;; Compatibilities with other extensions
|
||
|
||
(defun ac-flyspell-workaround ()
|
||
"Flyspell uses `sit-for' for delaying its process. Unfortunatelly,
|
||
it stops auto completion which is trigger with `run-with-idle-timer'.
|
||
This workaround avoid flyspell processes when auto completion is being started."
|
||
(interactive)
|
||
(defadvice flyspell-post-command-hook (around ac-flyspell-workaround activate)
|
||
(unless ac-triggered
|
||
ad-do-it)))
|
||
|
||
|
||
|
||
;;;; Standard sources
|
||
|
||
(defmacro ac-define-source (name source)
|
||
"Source definition macro. It defines a complete command also."
|
||
(declare (indent 1))
|
||
`(progn
|
||
(defvar ,(intern (format "ac-source-%s" name))
|
||
,source)
|
||
(defun ,(intern (format "ac-complete-%s" name)) ()
|
||
(interactive)
|
||
(auto-complete '(,(intern (format "ac-source-%s" name)))))))
|
||
|
||
;; Words in buffer source
|
||
(defvar ac-word-index nil)
|
||
|
||
(defun ac-candidate-words-in-buffer (point prefix limit)
|
||
(let ((i 0)
|
||
candidate
|
||
candidates
|
||
(regexp (concat "\\_<" (regexp-quote prefix) "\\(\\sw\\|\\s_\\)+\\_>")))
|
||
(save-excursion
|
||
;; Search backward
|
||
(goto-char point)
|
||
(while (and (or (not (integerp limit)) (< i limit))
|
||
(re-search-backward regexp nil t))
|
||
(setq candidate (match-string-no-properties 0))
|
||
(unless (member candidate candidates)
|
||
(push candidate candidates)
|
||
(incf i)))
|
||
;; Search backward
|
||
(goto-char (+ point (length prefix)))
|
||
(while (and (or (not (integerp limit)) (< i limit))
|
||
(re-search-forward regexp nil t))
|
||
(setq candidate (match-string-no-properties 0))
|
||
(unless (member candidate candidates)
|
||
(push candidate candidates)
|
||
(incf i)))
|
||
(nreverse candidates))))
|
||
|
||
(defun ac-incremental-update-word-index ()
|
||
(unless (local-variable-p 'ac-word-index)
|
||
(make-local-variable 'ac-word-index))
|
||
(if (null ac-word-index)
|
||
(setq ac-word-index (cons nil nil)))
|
||
;; Mark incomplete
|
||
(if (car ac-word-index)
|
||
(setcar ac-word-index nil))
|
||
(let ((index (cdr ac-word-index))
|
||
(words (ac-candidate-words-in-buffer ac-point ac-prefix (or (and (integerp ac-limit) ac-limit) 10))))
|
||
(dolist (word words)
|
||
(unless (member word index)
|
||
(push word index)
|
||
(setcdr ac-word-index index)))))
|
||
|
||
(defun ac-update-word-index-1 ()
|
||
(unless (local-variable-p 'ac-word-index)
|
||
(make-local-variable 'ac-word-index))
|
||
(when (and (not (car ac-word-index))
|
||
(< (buffer-size) 1048576))
|
||
;; Complete index
|
||
(setq ac-word-index
|
||
(cons t
|
||
(split-string (buffer-substring-no-properties (point-min) (point-max))
|
||
"\\(?:^\\|\\_>\\).*?\\(?:\\_<\\|$\\)")))))
|
||
|
||
(defun ac-update-word-index ()
|
||
(dolist (buffer (buffer-list))
|
||
(when (or ac-fuzzy-enable
|
||
(not (eq buffer (current-buffer))))
|
||
(with-current-buffer buffer
|
||
(ac-update-word-index-1)))))
|
||
|
||
(defun ac-word-candidates (&optional buffer-pred)
|
||
(loop initially (unless ac-fuzzy-enable (ac-incremental-update-word-index))
|
||
for buffer in (buffer-list)
|
||
if (and (or (not (integerp ac-limit)) (< (length candidates) ac-limit))
|
||
(if buffer-pred (funcall buffer-pred buffer) t))
|
||
append (funcall ac-match-function
|
||
ac-prefix
|
||
(and (local-variable-p 'ac-word-index buffer)
|
||
(cdr (buffer-local-value 'ac-word-index buffer))))
|
||
into candidates
|
||
finally return candidates))
|
||
|
||
(ac-define-source words-in-buffer
|
||
'((candidates . ac-word-candidates)))
|
||
|
||
(ac-define-source words-in-all-buffer
|
||
'((init . ac-update-word-index)
|
||
(candidates . ac-word-candidates)))
|
||
|
||
(ac-define-source words-in-same-mode-buffers
|
||
'((init . ac-update-word-index)
|
||
(candidates . (ac-word-candidates
|
||
(lambda (buffer)
|
||
(derived-mode-p (buffer-local-value 'major-mode buffer)))))))
|
||
|
||
;; Lisp symbols source
|
||
(defvar ac-symbols-cache nil)
|
||
(ac-clear-variable-every-10-minutes 'ac-symbols-cache)
|
||
|
||
(defun ac-symbol-file (symbol type)
|
||
(if (fboundp 'find-lisp-object-file-name)
|
||
(find-lisp-object-file-name symbol type)
|
||
(let ((file-name (with-no-warnings
|
||
(describe-simplify-lib-file-name
|
||
(symbol-file symbol type)))))
|
||
(when (equal file-name "loaddefs.el")
|
||
;; Find the real def site of the preloaded object.
|
||
(let ((location (condition-case nil
|
||
(if (eq type 'defun)
|
||
(find-function-search-for-symbol symbol nil
|
||
"loaddefs.el")
|
||
(find-variable-noselect symbol file-name))
|
||
(error nil))))
|
||
(when location
|
||
(with-current-buffer (car location)
|
||
(when (cdr location)
|
||
(goto-char (cdr location)))
|
||
(when (re-search-backward
|
||
"^;;; Generated autoloads from \\(.*\\)" nil t)
|
||
(setq file-name (match-string 1)))))))
|
||
(if (and (null file-name)
|
||
(or (eq type 'defun)
|
||
(integerp (get symbol 'variable-documentation))))
|
||
;; It's a object not defined in Elisp but in C.
|
||
(if (get-buffer " *DOC*")
|
||
(if (eq type 'defun)
|
||
(help-C-file-name (symbol-function symbol) 'subr)
|
||
(help-C-file-name symbol 'var))
|
||
'C-source)
|
||
file-name))))
|
||
|
||
(defun ac-symbol-documentation (symbol)
|
||
(if (stringp symbol)
|
||
(setq symbol (intern-soft symbol)))
|
||
(ignore-errors
|
||
(with-temp-buffer
|
||
(let ((standard-output (current-buffer)))
|
||
(prin1 symbol)
|
||
(princ " is ")
|
||
(cond
|
||
((fboundp symbol)
|
||
(let ((help-xref-following t))
|
||
(describe-function-1 symbol))
|
||
(buffer-string))
|
||
((boundp symbol)
|
||
(let ((file-name (ac-symbol-file symbol 'defvar)))
|
||
(princ "a variable")
|
||
(when file-name
|
||
(princ " defined in `")
|
||
(princ (if (eq file-name 'C-source)
|
||
"C source code"
|
||
(file-name-nondirectory file-name))))
|
||
(princ "'.\n\n")
|
||
(princ (or (documentation-property symbol 'variable-documentation t)
|
||
"Not documented."))
|
||
(buffer-string)))
|
||
((facep symbol)
|
||
(let ((file-name (ac-symbol-file symbol 'defface)))
|
||
(princ "a face")
|
||
(when file-name
|
||
(princ " defined in `")
|
||
(princ (if (eq file-name 'C-source)
|
||
"C source code"
|
||
(file-name-nondirectory file-name))))
|
||
(princ "'.\n\n")
|
||
(princ (or (documentation-property symbol 'face-documentation t)
|
||
"Not documented."))
|
||
(buffer-string)))
|
||
(t
|
||
(let ((doc (documentation-property symbol 'group-documentation t)))
|
||
(when doc
|
||
(princ "a group.\n\n")
|
||
(princ doc)
|
||
(buffer-string)))))))))
|
||
|
||
(defun ac-symbol-candidates ()
|
||
(or ac-symbols-cache
|
||
(setq ac-symbols-cache
|
||
(loop for x being the symbols
|
||
if (or (fboundp x)
|
||
(boundp x)
|
||
(symbol-plist x))
|
||
collect (symbol-name x)))))
|
||
|
||
(ac-define-source symbols
|
||
'((candidates . ac-symbol-candidates)
|
||
(document . ac-symbol-documentation)
|
||
(symbol . "s")
|
||
(cache)))
|
||
|
||
;; Lisp functions source
|
||
(defvar ac-functions-cache nil)
|
||
(ac-clear-variable-every-10-minutes 'ac-functions-cache)
|
||
|
||
(defun ac-function-candidates ()
|
||
(or ac-functions-cache
|
||
(setq ac-functions-cache
|
||
(loop for x being the symbols
|
||
if (fboundp x)
|
||
collect (symbol-name x)))))
|
||
|
||
(ac-define-source functions
|
||
'((candidates . ac-function-candidates)
|
||
(document . ac-symbol-documentation)
|
||
(symbol . "f")
|
||
(prefix . "(\\(\\(?:\\sw\\|\\s_\\)+\\)")
|
||
(cache)))
|
||
|
||
;; Lisp variables source
|
||
(defvar ac-variables-cache nil)
|
||
(ac-clear-variable-every-10-minutes 'ac-variables-cache)
|
||
|
||
(defun ac-variable-candidates ()
|
||
(or ac-variables-cache
|
||
(setq ac-variables-cache
|
||
(loop for x being the symbols
|
||
if (boundp x)
|
||
collect (symbol-name x)))))
|
||
|
||
(ac-define-source variables
|
||
'((candidates . ac-variable-candidates)
|
||
(document . ac-symbol-documentation)
|
||
(symbol . "v")
|
||
(cache)))
|
||
|
||
;; Lisp features source
|
||
(defvar ac-emacs-lisp-features nil)
|
||
(ac-clear-variable-every-10-minutes 'ac-emacs-lisp-features)
|
||
|
||
(defun ac-emacs-lisp-feature-candidates ()
|
||
(or ac-emacs-lisp-features
|
||
(if (fboundp 'find-library-suffixes)
|
||
(let ((suffix (concat (regexp-opt (find-library-suffixes) t) "\\'")))
|
||
(setq ac-emacs-lisp-features
|
||
(append (mapcar 'prin1-to-string features)
|
||
(loop for dir in load-path
|
||
if (file-directory-p dir)
|
||
append (loop for file in (directory-files dir)
|
||
if (string-match suffix file)
|
||
collect (substring file 0 (match-beginning 0))))))))))
|
||
|
||
(ac-define-source features
|
||
'((depends find-func)
|
||
(candidates . ac-emacs-lisp-feature-candidates)
|
||
(prefix . "require +'\\(\\(?:\\sw\\|\\s_\\)*\\)")
|
||
(requires . 0)))
|
||
|
||
(defvaralias 'ac-source-emacs-lisp-features 'ac-source-features)
|
||
|
||
;; Abbrev source
|
||
(ac-define-source abbrev
|
||
'((candidates . (mapcar 'popup-x-to-string (append (vconcat local-abbrev-table global-abbrev-table) nil)))
|
||
(action . expand-abbrev)
|
||
(symbol . "a")
|
||
(cache)))
|
||
|
||
;; Files in current directory source
|
||
(ac-define-source files-in-current-dir
|
||
'((candidates . (directory-files default-directory))
|
||
(cache)))
|
||
|
||
;; Filename source
|
||
(defvar ac-filename-cache nil)
|
||
|
||
(defun ac-filename-candidate ()
|
||
(unless (file-regular-p ac-prefix)
|
||
(ignore-errors
|
||
(loop with dir = (file-name-directory ac-prefix)
|
||
with files = (or (assoc-default dir ac-filename-cache)
|
||
(let ((files (directory-files dir nil "^[^.]")))
|
||
(push (cons dir files) ac-filename-cache)
|
||
files))
|
||
for file in files
|
||
for path = (concat dir file)
|
||
collect (if (file-directory-p path)
|
||
(concat path "/")
|
||
path)))))
|
||
|
||
(ac-define-source filename
|
||
'((init . (setq ac-filename-cache nil))
|
||
(candidates . ac-filename-candidate)
|
||
(prefix . valid-file)
|
||
(requires . 0)
|
||
(action . ac-start)
|
||
(limit . nil)))
|
||
|
||
;; Dictionary source
|
||
(defcustom ac-user-dictionary nil
|
||
"User dictionary"
|
||
:type '(repeat string)
|
||
:group 'auto-complete)
|
||
|
||
(defcustom ac-user-dictionary-files '("~/.dict")
|
||
"User dictionary files."
|
||
:type '(repeat string)
|
||
:group 'auto-complete)
|
||
|
||
(defcustom ac-dictionary-directories nil
|
||
"Dictionary directories."
|
||
:type '(repeat string)
|
||
:group 'auto-complete)
|
||
|
||
(defvar ac-dictionary nil)
|
||
(defvar ac-dictionary-cache (make-hash-table :test 'equal))
|
||
|
||
(defun ac-clear-dictionary-cache ()
|
||
(interactive)
|
||
(clrhash ac-dictionary-cache))
|
||
|
||
(defun ac-read-file-dictionary (filename)
|
||
(let ((cache (gethash filename ac-dictionary-cache 'none)))
|
||
(if (and cache (not (eq cache 'none)))
|
||
cache
|
||
(let (result)
|
||
(ignore-errors
|
||
(with-temp-buffer
|
||
(insert-file-contents filename)
|
||
(setq result (split-string (buffer-string) "\n"))))
|
||
(puthash filename result ac-dictionary-cache)
|
||
result))))
|
||
|
||
(defun ac-buffer-dictionary ()
|
||
(apply 'append
|
||
(mapcar 'ac-read-file-dictionary
|
||
(mapcar (lambda (name)
|
||
(loop for dir in ac-dictionary-directories
|
||
for file = (concat dir "/" name)
|
||
if (file-exists-p file)
|
||
return file))
|
||
(list (symbol-name major-mode)
|
||
(ignore-errors
|
||
(file-name-extension (buffer-file-name))))))))
|
||
|
||
(defun ac-dictionary-candidates ()
|
||
(apply 'append `(,ac-user-dictionary
|
||
,(ac-buffer-dictionary)
|
||
,@(mapcar 'ac-read-file-dictionary
|
||
ac-user-dictionary-files))))
|
||
|
||
(ac-define-source dictionary
|
||
'((candidates . ac-dictionary-candidates)
|
||
(symbol . "d")))
|
||
|
||
(provide 'auto-complete)
|
||
;;; auto-complete.el ends here
|