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author | 2011-02-21 00:27:43 +0100 | |
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committer | 2011-02-21 00:27:43 +0100 | |
commit | 62f897fdf5988840ee5538e30fbd3c7bcb715735 (patch) | |
tree | 4b389e2de2919676e4fe1c7f7716d33c94ecb7db /emacs.d/elisp/auto-complete.el | |
parent | 294a0eef5da437bb6840acfd831e6d85b988bd60 (diff) | |
download | dotfiles-62f897fdf5988840ee5538e30fbd3c7bcb715735.tar.gz dotfiles-62f897fdf5988840ee5538e30fbd3c7bcb715735.zip |
New .emacs style
* .emacs only loops through .emacs.d and runs the *.el files there.
* files are automatically compiled before loading. But only if it
hasn't already been compiled.
* all emacs el files, save for the startup scripts, have been moved
to .emacs.d/elisp
Diffstat (limited to 'emacs.d/elisp/auto-complete.el')
-rw-r--r-- | emacs.d/elisp/auto-complete.el | 1897 |
1 files changed, 1897 insertions, 0 deletions
diff --git a/emacs.d/elisp/auto-complete.el b/emacs.d/elisp/auto-complete.el new file mode 100644 index 0000000..2472dc7 --- /dev/null +++ b/emacs.d/elisp/auto-complete.el @@ -0,0 +1,1897 @@ +;;; auto-complete.el --- Auto Completion for GNU Emacs + +;; Copyright (C) 2008, 2009, 2010 Tomohiro Matsuyama + +;; Author: Tomohiro Matsuyama <m2ym.pub@gmail.com> +;; URL: http://cx4a.org/software/auto-complete +;; Keywords: completion, convenience +;; Version: 1.3 + +;; This program is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. + +;; This program is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with this program. If not, see <http://www.gnu.org/licenses/>. + +;;; Commentary: +;; +;; This extension provides a way to complete with popup menu like: +;; +;; def-!- +;; +-----------------+ +;; |defun::::::::::::| +;; |defvar | +;; |defmacro | +;; | ... | +;; +-----------------+ +;; +;; You can complete by typing and selecting menu. +;; +;; Entire documents are located in doc/ directory. +;; Take a look for information. +;; +;; Enjoy! + +;;; Code: + + + +(eval-when-compile + (require 'cl)) + +(require 'popup) + +;;;; Global stuff + +(defun ac-error (&optional var) + "Report an error and disable `auto-complete-mode'." + (ignore-errors + (message "auto-complete error: %s" var) + (auto-complete-mode -1) + var)) + + + +;;;; Customization + +(defgroup auto-complete nil + "Auto completion." + :group 'completion + :prefix "ac-") + +(defcustom ac-delay 0.1 + "Delay to completions will be available." + :type 'float + :group 'auto-complete) + +(defcustom ac-auto-show-menu 0.8 + "Non-nil means completion menu will be automatically shown." + :type '(choice (const :tag "Yes" t) + (const :tag "Never" nil) + (float :tag "Timer")) + :group 'auto-complete) + +(defcustom ac-show-menu-immediately-on-auto-complete t + "Non-nil means menu will be showed immediately on `auto-complete'." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-expand-on-auto-complete t + "Non-nil means expand whole common part on first time `auto-complete'." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-disable-faces '(font-lock-comment-face font-lock-string-face font-lock-doc-face) + "Non-nil means disable automatic completion on specified faces." + :type '(repeat symbol) + :group 'auto-complete) + +(defcustom ac-stop-flymake-on-completing t + "Non-nil means disble flymake temporarily on completing." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-use-fuzzy t + "Non-nil means use fuzzy matching." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-fuzzy-cursor-color "red" + "Cursor color in fuzzy mode." + :type 'string + :group 'auto-complete) + +(defcustom ac-use-comphist t + "Non-nil means use intelligent completion history." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-comphist-threshold 0.7 + "Percentage of ignoring low scored candidates." + :type 'float + :group 'auto-complete) + +(defcustom ac-comphist-file + (expand-file-name (concat (if (boundp 'user-emacs-directory) + user-emacs-directory + "~/.emacs.d/") + "/ac-comphist.dat")) + "Completion history file name." + :type 'string + :group 'auto-complete) + +(defcustom ac-use-quick-help t + "Non-nil means use quick help." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-quick-help-delay 1.5 + "Delay to show quick help." + :type 'float + :group 'auto-complete) + +(defcustom ac-menu-height 10 + "Max height of candidate menu." + :type 'integer + :group 'auto-complete) +(defvaralias 'ac-candidate-menu-height 'ac-menu-height) + +(defcustom ac-quick-help-height 20 + "Max height of quick help." + :type 'integer + :group 'auto-complete) + +(defcustom ac-quick-help-prefer-x t + "Prefer X tooltip than overlay popup for displaying quick help." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-candidate-limit nil + "Limit number of candidates. Non-integer means no limit." + :type 'integer + :group 'auto-complete) +(defvaralias 'ac-candidate-max 'ac-candidate-limit) + +(defcustom ac-modes + '(emacs-lisp-mode + lisp-interaction-mode + c-mode cc-mode c++-mode + java-mode clojure-mode scala-mode + scheme-mode + ocaml-mode tuareg-mode + perl-mode cperl-mode python-mode ruby-mode + ecmascript-mode javascript-mode js-mode js2-mode php-mode css-mode + makefile-mode sh-mode fortran-mode f90-mode ada-mode + xml-mode sgml-mode) + "Major modes `auto-complete-mode' can run on." + :type '(repeat symbol) + :group 'auto-complete) + +(defcustom ac-compatible-packages-regexp + "^ac-" + "Regexp to indicate what packages can work with auto-complete." + :type 'string + :group 'auto-complete) + +(defcustom ac-trigger-commands + '(self-insert-command) + "Trigger commands that specify whether `auto-complete' should start or not." + :type '(repeat symbol) + :group 'auto-complete) + +(defcustom ac-trigger-commands-on-completing + '(delete-backward-char + backward-delete-char + backward-delete-char-untabify) + "Trigger commands that specify whether `auto-complete' should continue or not." + :type '(repeat symbol) + :group 'auto-complete) + +(defcustom ac-trigger-key nil + "Non-nil means `auto-complete' will start by typing this key. +If you specify this TAB, for example, `auto-complete' will start by typing TAB, +and if there is no completions, an original command will be fallbacked." + :type 'string + :group 'auto-complete + :set (lambda (symbol value) + (set-default symbol value) + (when (and value + (fboundp 'ac-set-trigger-key)) + (ac-set-trigger-key value)))) + +(defcustom ac-auto-start 2 + "Non-nil means completion will be started automatically. +Positive integer means if a length of a word you entered is larger than the value, +completion will be started automatically. +If you specify `nil', never be started automatically." + :type '(choice (const :tag "Yes" t) + (const :tag "Never" nil) + (integer :tag "Require")) + :group 'auto-complete) + +(defcustom ac-ignores nil + "List of string to ignore completion." + :type '(repeat string) + :group 'auto-complete) + +(defcustom ac-ignore-case 'smart + "Non-nil means auto-complete ignores case. +If this value is `smart', auto-complete ignores case only when +a prefix doen't contain any upper case letters." + :type '(choice (const :tag "Yes" t) + (const :tag "Smart" smart) + (const :tag "No" nil)) + :group 'auto-complete) + +(defcustom ac-dwim t + "Non-nil means `auto-complete' works based on Do What I Mean." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-use-menu-map nil + "Non-nil means a special keymap `ac-menu-map' on completing menu will be used." + :type 'boolean + :group 'auto-complete) + +(defcustom ac-use-overriding-local-map nil + "Non-nil means `overriding-local-map' will be used to hack for overriding key events on auto-copletion." + :type 'boolean + :group 'auto-complete) + +(defface ac-completion-face + '((t (:foreground "darkgray" :underline t))) + "Face for inline completion" + :group 'auto-complete) + +(defface ac-candidate-face + '((t (:background "lightgray" :foreground "black"))) + "Face for candidate." + :group 'auto-complete) + +(defface ac-selection-face + '((t (:background "steelblue" :foreground "white"))) + "Face for selected candidate." + :group 'auto-complete) + +(defvar auto-complete-mode-hook nil + "Hook for `auto-complete-mode'.") + + + +;;;; Internal variables + +(defvar auto-complete-mode nil + "Dummy variable to suppress compiler warnings.") + +(defvar ac-cursor-color nil + "Old cursor color.") + +(defvar ac-inline nil + "Inline completion instance.") + +(defvar ac-menu nil + "Menu instance.") + +(defvar ac-show-menu nil + "Flag to show menu on timer tick.") + +(defvar ac-last-completion nil + "Cons of prefix marker and selected item of last completion.") + +(defvar ac-quick-help nil + "Quick help instance") + +(defvar ac-completing nil + "Non-nil means `auto-complete-mode' is now working on completion.") + +(defvar ac-buffer nil + "Buffer where auto-complete is started.") + +(defvar ac-point nil + "Start point of prefix.") + +(defvar ac-last-point nil + "Last point of updating pattern.") + +(defvar ac-prefix nil + "Prefix string.") +(defvaralias 'ac-target 'ac-prefix) + +(defvar ac-selected-candidate nil + "Last selected candidate.") + +(defvar ac-common-part nil + "Common part string of meaningful candidates. +If there is no common part, this will be nil.") + +(defvar ac-whole-common-part nil + "Common part string of whole candidates. +If there is no common part, this will be nil.") + +(defvar ac-prefix-overlay nil + "Overlay for prefix string.") + +(defvar ac-timer nil + "Completion idle timer.") + +(defvar ac-show-menu-timer nil + "Show menu idle timer.") + +(defvar ac-quick-help-timer nil + "Quick help idle timer.") + +(defvar ac-triggered nil + "Flag to update.") + +(defvar ac-limit nil + "Limit number of candidates for each sources.") + +(defvar ac-candidates nil + "Current candidates.") + +(defvar ac-candidates-cache nil + "Candidates cache for individual sources.") + +(defvar ac-fuzzy-enable nil + "Non-nil means fuzzy matching is enabled.") + +(defvar ac-dwim-enable nil + "Non-nil means DWIM completion will be allowed.") + +(defvar ac-mode-map (make-sparse-keymap) + "Auto-complete mode map. It is also used for trigger key command. See also `ac-trigger-key'.") + +(defvar ac-completing-map + (let ((map (make-sparse-keymap))) + (define-key map "\t" 'ac-expand) + (define-key map "\r" 'ac-complete) + (define-key map (kbd "M-TAB") 'auto-complete) + (define-key map "\C-s" 'ac-isearch) + + (define-key map "\M-n" 'ac-next) + (define-key map "\M-p" 'ac-previous) + (define-key map [down] 'ac-next) + (define-key map [up] 'ac-previous) + + (define-key map [f1] 'ac-help) + (define-key map [M-f1] 'ac-persist-help) + (define-key map (kbd "C-?") 'ac-help) + (define-key map (kbd "C-M-?") 'ac-persist-help) + + (define-key map [C-down] 'ac-quick-help-scroll-down) + (define-key map [C-up] 'ac-quick-help-scroll-up) + (define-key map "\C-\M-n" 'ac-quick-help-scroll-down) + (define-key map "\C-\M-p" 'ac-quick-help-scroll-up) + + (dotimes (i 9) + (let ((symbol (intern (format "ac-complete-%d" (1+ i))))) + (fset symbol + `(lambda () + (interactive) + (when (and (ac-menu-live-p) (popup-select ac-menu ,i)) + (ac-complete)))) + (define-key map (read-kbd-macro (format "M-%s" (1+ i))) symbol))) + + map) + "Keymap for completion.") +(defvaralias 'ac-complete-mode-map 'ac-completing-map) + +(defvar ac-menu-map + (let ((map (make-sparse-keymap))) + (define-key map "\C-n" 'ac-next) + (define-key map "\C-p" 'ac-previous) + (set-keymap-parent map ac-completing-map) + map) + "Keymap for completion on completing menu.") + +(defvar ac-current-map + (let ((map (make-sparse-keymap))) + (set-keymap-parent map ac-completing-map) + map)) + +(defvar ac-match-function 'all-completions + "Default match function.") + +(defvar ac-prefix-definitions + '((symbol . ac-prefix-symbol) + (file . ac-prefix-file) + (valid-file . ac-prefix-valid-file) + (c-dot . ac-prefix-c-dot) + (c-dot-ref . ac-prefix-c-dot-ref)) + "Prefix definitions for common use.") + +(defvar ac-sources '(ac-source-words-in-same-mode-buffers) + "Sources for completion.") +(make-variable-buffer-local 'ac-sources) + +(defvar ac-compiled-sources nil + "Compiled source of `ac-sources'.") + +(defvar ac-current-sources nil + "Current working sources. This is sublist of `ac-compiled-sources'.") + +(defvar ac-omni-completion-sources nil + "Do not use this anymore.") + +(defvar ac-current-prefix-def nil) + +(defvar ac-ignoring-prefix-def nil) + + + +;;;; Intelligent completion history + +(defvar ac-comphist nil + "Database of completion history.") + +(defsubst ac-comphist-make-tab () + (make-hash-table :test 'equal)) + +(defsubst ac-comphist-tab (db) + (nth 0 db)) + +(defsubst ac-comphist-cache (db) + (nth 1 db)) + +(defun ac-comphist-make (&optional tab) + (list (or tab (ac-comphist-make-tab)) (make-hash-table :test 'equal :weakness t))) + +(defun ac-comphist-get (db string &optional create) + (let* ((tab (ac-comphist-tab db)) + (index (gethash string tab))) + (when (and create (null index)) + (setq index (make-vector (length string) 0)) + (puthash string index tab)) + index)) + +(defun ac-comphist-add (db string prefix) + (setq prefix (min prefix (1- (length string)))) + (when (<= 0 prefix) + (setq string (substring-no-properties string)) + (let ((stat (ac-comphist-get db string t))) + (incf (aref stat prefix)) + (remhash string (ac-comphist-cache db))))) + +(defun ac-comphist-score (db string prefix) + (setq prefix (min prefix (1- (length string)))) + (if (<= 0 prefix) + (let ((cache (gethash string (ac-comphist-cache db)))) + (or (and cache (aref cache prefix)) + (let ((stat (ac-comphist-get db string)) + (score 0.0)) + (when stat + (loop for p from 0 below (length string) + ;; sigmoid function + with a = 5 + with d = (/ 6.0 a) + for x = (- d (abs (- prefix p))) + for r = (/ 1.0 (1+ (exp (* (- a) x)))) + do + (incf score (* (aref stat p) r)))) + ;; Weight by distance + (incf score (max 0.0 (- 0.3 (/ (- (length string) prefix) 100.0)))) + (unless cache + (setq cache (make-vector (length string) nil)) + (puthash string cache (ac-comphist-cache db))) + (aset cache prefix score) + score))) + 0.0)) + +(defun ac-comphist-sort (db collection prefix &optional threshold) + (let (result + (n 0) + (total 0) + (cur 0)) + (setq result (mapcar (lambda (a) + (when (and cur threshold) + (if (>= cur (* total threshold)) + (setq cur nil) + (incf n) + (incf cur (cdr a)))) + (car a)) + (sort (mapcar (lambda (string) + (let ((score (ac-comphist-score db string prefix))) + (incf total score) + (cons string score))) + collection) + (lambda (a b) (< (cdr b) (cdr a)))))) + (if threshold + (cons n result) + result))) + +(defun ac-comphist-serialize (db) + (let (alist) + (maphash (lambda (k v) + (push (cons k v) alist)) + (ac-comphist-tab db)) + (list alist))) + +(defun ac-comphist-deserialize (sexp) + (condition-case nil + (ac-comphist-make (let ((tab (ac-comphist-make-tab))) + (mapc (lambda (cons) + (puthash (car cons) (cdr cons) tab)) + (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 |