-;;; company.el --- extensible inline text completion mechanism
-;;
-;; Copyright (C) 2009 Nikolaj Schumacher
-;;
-;; Author: Nikolaj Schumacher <bugs * nschum de>
-;; Version: 0.4
-;; Keywords: abbrev, convenience, matchis
-;; URL: http://nschum.de/src/emacs/company/
-;; Compatibility: GNU Emacs 22.x, GNU Emacs 23.x
-;;
-;; This file is NOT part of GNU Emacs.
-;;
-;; 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 2
-;; of the License, or (at your option) any later version.
-;;
-;; This program is distributed in the hope that it will be useful,
+;;; company.el --- Modular in-buffer completion framework -*- lexical-binding: t -*-
+
+;; Copyright (C) 2009-2013 Free Software Foundation, Inc.
+
+;; Author: Nikolaj Schumacher
+;; Maintainer: Dmitry Gutov <dgutov@yandex.ru>
+;; Version: 0.6.7
+;; Keywords: abbrev, convenience, matching
+;; URL: http://company-mode.github.com/
+;; Compatibility: GNU Emacs 22.x, GNU Emacs 23.x, GNU Emacs 24.x
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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.
+
+;; GNU Emacs 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/>.
-;;
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
+
;;; Commentary:
;;
;; Company is a modular completion mechanism. Modules for retrieving completion
;; candidates are called back-ends, modules for displaying them are front-ends.
;;
;; Company comes with many back-ends, e.g. `company-elisp'. These are
-;; distributed in individual files and can be used individually.
+;; distributed in separate files and can be used individually.
;;
;; Place company.el and the back-ends you want to use in a directory and add the
;; following to your .emacs:
;;
;; (defun company-my-backend (command &optional arg &rest ignored)
;; (case command
-;; ('prefix (when (looking-back "foo\\>")
-;; (match-string 0)))
-;; ('candidates (list "foobar" "foobaz" "foobarbaz"))
-;; ('meta (format "This value is named %s" arg))))
-;;
-;; Sometimes it is a good idea to mix two back-ends together, for example to
-;; enrich gtags with dabbrev text (to emulate local variables):
+;; (prefix (when (looking-back "foo\\>")
+;; (match-string 0)))
+;; (candidates (list "foobar" "foobaz" "foobarbaz"))
+;; (meta (format "This value is named %s" arg))))
;;
-;; (defun gtags-gtags-dabbrev-backend (command &optional arg &rest ignored)
-;; (case command
-;; (prefix (company-gtags 'prefix))
-;; (candidates (append (company-gtags 'candidates arg)
-;; (company-dabbrev 'candidates arg)))))
+;; Sometimes it is a good idea to mix several back-ends together, for example to
+;; enrich gtags with dabbrev-code results (to emulate local variables).
+;; To do this, add a list with both back-ends as an element in company-backends.
;;
;; Known Issues:
;; When point is at the very end of the buffer, the pseudo-tooltip appears very
;;
;;; Change Log:
;;
-;; Added `global-company-mode'.
-;; Performance enhancements.
-;; Added `company-eclim' back-end.
-;; Added safer workaround for Emacs `posn-col-row' bug.
-;;
-;; 2009-04-18 (0.4)
-;; Automatic completion is now aborted if the prefix gets too short.
-;; Added option `company-dabbrev-time-limit'.
-;; `company-backends' now supports merging back-ends.
-;; Added back-end `company-dabbrev-code' for generic code.
-;; Fixed `company-begin-with'.
-;;
-;; 2009-04-15 (0.3.1)
-;; Added 'stop prefix to prevent dabbrev from completing inside of symbols.
-;; Fixed issues with tabbar-mode and line-spacing.
-;; Performance enhancements.
-;;
-;; 2009-04-12 (0.3)
-;; Added `company-begin-commands' option.
-;; Added abbrev, tempo and Xcode back-ends.
-;; Back-ends are now interactive. You can start them with M-x backend-name.
-;; Added `company-begin-with' for starting company from elisp-code.
-;; Added hooks.
-;; Added `company-require-match' and `company-auto-complete' options.
-;;
-;; 2009-04-05 (0.2.1)
-;; Improved Emacs Lisp back-end behavior for local variables.
-;; Added `company-elisp-detect-function-context' option.
-;; The mouse can now be used for selection.
-;;
-;; 2009-03-22 (0.2)
-;; Added `company-show-location'.
-;; Added etags back-end.
-;; Added work-around for end-of-buffer bug.
-;; Added `company-filter-candidates'.
-;; More local Lisp variables are now included in the candidates.
-;;
-;; 2009-03-21 (0.1.5)
-;; Fixed elisp documentation buffer always showing the same doc.
-;; Added `company-echo-strip-common-frontend'.
-;; Added `company-show-numbers' option and M-0 ... M-9 default bindings.
-;; Don't hide the echo message if it isn't shown.
-;;
-;; 2009-03-20 (0.1)
-;; Initial release.
-;;
+;; See NEWS.md in the repository.
+
;;; Code:
(eval-when-compile (require 'cl))
(add-to-list 'debug-ignored-errors "^Company not ")
(add-to-list 'debug-ignored-errors "^No candidate number ")
(add-to-list 'debug-ignored-errors "^Cannot complete at point$")
+(add-to-list 'debug-ignored-errors "^No other back-end$")
(defgroup company nil
"Extensible inline text completion mechanism"
:group 'abbrev
:group 'convenience
- :group 'maching)
+ :group 'matching)
(defface company-tooltip
- '((t :background "yellow"
- :foreground "black"))
- "*Face used for the tool tip."
+ '((default :foreground "black")
+ (((class color) (min-colors 88) (background light))
+ (:background "cornsilk"))
+ (((class color) (min-colors 88) (background dark))
+ (:background "yellow")))
+ "Face used for the tool tip."
:group 'company)
(defface company-tooltip-selection
'((default :inherit company-tooltip)
- (((class color) (min-colors 88)) (:background "orange1"))
+ (((class color) (min-colors 88) (background light))
+ (:background "light blue"))
+ (((class color) (min-colors 88) (background dark))
+ (:background "orange1"))
(t (:background "green")))
- "*Face used for the selection in the tool tip."
+ "Face used for the selection in the tool tip."
:group 'company)
(defface company-tooltip-mouse
'((default :inherit highlight))
- "*Face used for the tool tip item under the mouse."
+ "Face used for the tool tip item under the mouse."
:group 'company)
(defface company-tooltip-common
- '((t :inherit company-tooltip
- :foreground "red"))
- "*Face used for the common completion in the tool tip."
+ '((default :inherit company-tooltip)
+ (((background light))
+ :foreground "darkred")
+ (((background dark))
+ :foreground "red"))
+ "Face used for the common completion in the tool tip."
:group 'company)
(defface company-tooltip-common-selection
- '((t :inherit company-tooltip-selection
- :foreground "red"))
- "*Face used for the selected common completion in the tool tip."
+ '((default :inherit company-tooltip-selection)
+ (((background light))
+ :foreground "darkred")
+ (((background dark))
+ :foreground "red"))
+ "Face used for the selected common completion in the tool tip."
:group 'company)
-(defcustom company-tooltip-limit 10
- "*The maximum number of candidates in the tool tip"
- :group 'company
- :type 'integer)
-
(defface company-preview
'((t :background "blue4"
:foreground "wheat"))
- "*Face used for the completion preview."
+ "Face used for the completion preview."
:group 'company)
(defface company-preview-common
'((t :inherit company-preview
:foreground "red"))
- "*Face used for the common part of the completion preview."
+ "Face used for the common part of the completion preview."
:group 'company)
(defface company-preview-search
'((t :inherit company-preview
:background "blue1"))
- "*Face used for the search string in the completion preview."
+ "Face used for the search string in the completion preview."
:group 'company)
(defface company-echo nil
- "*Face used for completions in the echo area."
+ "Face used for completions in the echo area."
:group 'company)
(defface company-echo-common
'((((background dark)) (:foreground "firebrick1"))
(((background light)) (:background "firebrick4")))
- "*Face used for the common part of completions in the echo area."
+ "Face used for the common part of completions in the echo area."
:group 'company)
(defun company-frontends-set (variable value)
(set variable value))
(defcustom company-frontends '(company-pseudo-tooltip-unless-just-one-frontend
- company-preview-frontend
+ company-preview-if-just-one-frontend
company-echo-metadata-frontend)
- "*The list of active front-ends (visualizations).
+ "The list of active front-ends (visualizations).
Each front-end is a function that takes one argument. It is called with
one of the following arguments:
company-preview-if-just-one-frontend)
(function :tag "custom function" nil))))
+(defcustom company-tooltip-limit 10
+ "The maximum number of candidates in the tool tip"
+ :group 'company
+ :type 'integer)
+
+(defcustom company-tooltip-minimum 6
+ "The minimum height of the tool tip.
+If this many lines are not available, prefer to display the tooltip above."
+ :group 'company
+ :type 'integer)
+
(defvar company-safe-backends
'((company-abbrev . "Abbrev")
+ (company-clang . "clang")
(company-css . "CSS")
(company-dabbrev . "dabbrev for plain text")
(company-dabbrev-code . "dabbrev for code")
(company-keywords . "Programming language keywords")
(company-nxml . "nxml")
(company-oddmuse . "Oddmuse")
+ (company-pysmell . "PySmell")
+ (company-ropemacs . "ropemacs")
(company-semantic . "CEDET Semantic")
(company-tempo . "Tempo templates")
(company-xcode . "Xcode")))
(assq backend company-safe-backends))
(return t))))))
+(defun company-capf (command &optional arg &rest args)
+ "`company-mode' back-end using `completion-at-point-functions'.
+Requires Emacs 24.1 or newer."
+ (interactive (list 'interactive))
+ (case command
+ (interactive (company-begin-backend 'company-capf))
+ (prefix
+ (let ((res (run-hook-wrapped 'completion-at-point-functions
+ ;; Ignore misbehaving functions.
+ #'completion--capf-wrapper 'optimist)))
+ (when (consp res)
+ (if (> (nth 2 res) (point))
+ 'stop
+ (buffer-substring-no-properties (nth 1 res) (point))))))
+ (candidates
+ (let ((res (run-hook-wrapped 'completion-at-point-functions
+ ;; Ignore misbehaving functions.
+ #'completion--capf-wrapper 'optimist)))
+ (when (consp res)
+ (all-completions arg (nth 3 res)
+ (plist-get (nthcdr 4 res) :predicate)))))))
+
(defcustom company-backends '(company-elisp company-nxml company-css
- company-eclim company-semantic company-xcode
+ company-clang company-semantic company-eclim
+ company-xcode company-ropemacs
(company-gtags company-etags company-dabbrev-code
company-keywords)
company-oddmuse company-files company-dabbrev)
- "*The list of active back-ends (completion engines).
+ "The list of active back-ends (completion engines).
Each list elements can itself be a list of back-ends. In that case their
completions are merged. Otherwise only the first matching back-end returns
results.
+`company-begin-backend' can be used to start a specific back-end,
+`company-other-backend' will skip to the next matching back-end in the list.
+
Each back-end is a function that takes a variable number of arguments.
The first argument is the command requested from the back-end. It is one
of the following:
-'prefix: The back-end should return the text to be completed. It must be
+`prefix': The back-end should return the text to be completed. It must be
text immediately before `point'. Returning nil passes control to the next
back-end. The function should return 'stop if it should complete but cannot
-\(e.g. if it is in the middle of a string\).
+\(e.g. if it is in the middle of a string\). If the returned value is only
+part of the prefix (e.g. the part after \"->\" in C), the back-end may return a
+cons of prefix and prefix length, which is then used in the
+`company-minimum-prefix-length' test.
-'candidates: The second argument is the prefix to be completed. The
+`candidates': The second argument is the prefix to be completed. The
return value should be a list of candidates that start with the prefix.
Optional commands:
-'sorted: The back-end may return t here to indicate that the candidates
+`sorted': The back-end may return t here to indicate that the candidates
are sorted and will not need to be sorted again.
-'duplicates: If non-nil, company will take care of removing duplicates
+`duplicates': If non-nil, company will take care of removing duplicates
from the list.
-'no-cache: Usually company doesn't ask for candidates again as completion
+`no-cache': Usually company doesn't ask for candidates again as completion
progresses, unless the back-end returns t for this command. The second
argument is the latest prefix.
-'meta: The second argument is a completion candidate. The back-end should
+`meta': The second argument is a completion candidate. The back-end should
return a (short) documentation string for it.
-'doc-buffer: The second argument is a completion candidate. The back-end should
-create a buffer (preferably with `company-doc-buffer'), fill it with
-documentation and return it.
+`doc-buffer': The second argument is a completion candidate.
+The back-end should create a buffer (preferably with `company-doc-buffer'),
+fill it with documentation and return it.
-'location: The second argument is a completion candidate. The back-end can
+`location': The second argument is a completion candidate. The back-end can
return the cons of buffer and buffer location, or of file and line
number where the completion candidate was defined.
-'require-match: If this value is t, the user is not allowed to enter anything
-not offering as a candidate. Use with care! The default value nil gives the
+`require-match': If this value is t, the user is not allowed to enter anything
+not offered as a candidate. Use with care! The default value nil gives the
user that choice with `company-require-match'. Return value 'never overrides
that option the other way around.
+`init': Called once for each buffer, the back-end can check for external
+programs and files and load any required libraries. Raising an error here will
+show up in message log once, and the backend will not be used for completion.
+
+`post-completion': Called after a completion candidate has been inserted into
+the buffer. The second argument is the candidate. Can be used to modify it,
+e.g. to expand a snippet.
+
The back-end should return nil for all commands it does not support or
does not know about. It should also be callable interactively and use
`company-begin-backend' to start itself in that case."
company-safe-backends)
(symbol :tag "User defined"))))))
-(put 'company-backends 'safe-local-variable 'company-safe-backend-p)
+(put 'company-backends 'safe-local-variable 'company-safe-backends-p)
(defcustom company-completion-started-hook nil
- "*Hook run when company starts completing.
+ "Hook run when company starts completing.
The hook is called with one argument that is non-nil if the completion was
started manually."
:group 'company
:type 'hook)
(defcustom company-completion-cancelled-hook nil
- "*Hook run when company cancels completing.
+ "Hook run when company cancels completing.
The hook is called with one argument that is non-nil if the completion was
aborted manually."
:group 'company
:type 'hook)
(defcustom company-completion-finished-hook nil
- "*Hook run when company successfully completes.
-The hook is called with the selected candidate as an argument."
+ "Hook run when company successfully completes.
+The hook is called with the selected candidate as an argument.
+
+If you indend to use it to post-process candidates from a specific back-end,
+consider using the `post-completion' command instead."
:group 'company
:type 'hook)
(defcustom company-minimum-prefix-length 3
- "*The minimum prefix length for automatic completion."
+ "The minimum prefix length for automatic completion."
:group 'company
:type '(integer :tag "prefix length"))
(defcustom company-require-match 'company-explicit-action-p
- "*If enabled, disallow non-matching input.
+ "If enabled, disallow non-matching input.
This can be a function do determine if a match is required.
This can be overridden by the back-end, if it returns t or 'never to
This can also be a function, which is called with the new input and should
return non-nil if company should auto-complete.
-A character that is part of a valid candidate never starts auto-completion."
+A character that is part of a valid candidate never triggers auto-completion."
:group 'company
:type '(choice (string :tag "Characters")
(set :tag "Syntax"
(function :tag "Predicate function")))
(defcustom company-idle-delay .7
- "*The idle delay in seconds until automatic completions starts.
+ "The idle delay in seconds until automatic completions starts.
A value of nil means never complete automatically, t means complete
immediately when a prefix of `company-minimum-prefix-length' is reached."
:group 'company
(number :tag "seconds")))
(defcustom company-begin-commands t
- "*A list of commands following which company will start completing.
+ "A list of commands following which company will start completing.
If this is t, it will complete after any command. See `company-idle-delay'.
Alternatively any command with a non-nil 'company-begin property is treated as
(repeat :tag "Commands" function)))
(defcustom company-show-numbers nil
- "*If enabled, show quick-access numbers for the first ten candidates."
+ "If enabled, show quick-access numbers for the first ten candidates."
:group 'company
:type '(choice (const :tag "off" nil)
(const :tag "on" t)))
(defvar company-end-of-buffer-workaround t
- "*Work around a visualization bug when completing at the end of the buffer.
+ "Work around a visualization bug when completing at the end of the buffer.
The work-around consists of adding a newline.")
;;; mode ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-key keymap "\C-g" 'company-abort)
(define-key keymap (kbd "M-n") 'company-select-next)
(define-key keymap (kbd "M-p") 'company-select-previous)
- (define-key keymap (kbd "<down>") 'company-select-next)
- (define-key keymap (kbd "<up>") 'company-select-previous)
+ (define-key keymap (kbd "<down>") 'company-select-next-or-abort)
+ (define-key keymap (kbd "<up>") 'company-select-previous-or-abort)
(define-key keymap [down-mouse-1] 'ignore)
(define-key keymap [down-mouse-3] 'ignore)
(define-key keymap [mouse-1] 'company-complete-mouse)
(define-key keymap [mouse-3] 'company-select-mouse)
(define-key keymap [up-mouse-1] 'ignore)
(define-key keymap [up-mouse-3] 'ignore)
- (define-key keymap "\C-m" 'company-complete-selection)
- (define-key keymap "\t" 'company-complete-common)
+ (define-key keymap [return] 'company-complete-selection)
+ (define-key keymap (kbd "RET") 'company-complete-selection)
+ (define-key keymap [tab] 'company-complete-common)
+ (define-key keymap (kbd "TAB") 'company-complete-common)
(define-key keymap (kbd "<f1>") 'company-show-doc-buffer)
(define-key keymap "\C-w" 'company-show-location)
(define-key keymap "\C-s" 'company-search-candidates)
keymap)
"Keymap that is enabled during an active completion.")
+(defvar company--disabled-backends nil)
+
(defun company-init-backend (backend)
(and (symbolp backend)
(not (fboundp backend))
(if (or (symbolp backend)
(functionp backend))
- (if (ignore-errors (funcall backend 'init) t)
- (put backend 'company-init t)
- (put backend 'company-init 'failed)
- (message "Company back-end '%s' could not be initialized"
- backend)
- nil)
+ (condition-case err
+ (progn
+ (funcall backend 'init)
+ (put backend 'company-init t))
+ (error
+ (put backend 'company-init 'failed)
+ (unless (memq backend company--disabled-backends)
+ (message "Company back-end '%s' could not be initialized:\n%s"
+ backend (error-message-string err)))
+ (pushnew backend company--disabled-backends)
+ nil))
(mapc 'company-init-backend backend)))
+(defvar company-default-lighter " company")
+
+(defvar company-lighter company-default-lighter)
+(make-variable-buffer-local 'company-lighter)
+
;;;###autoload
(define-minor-mode company-mode
- "\"complete anything\"; in in-buffer completion framework.
+ "\"complete anything\"; is an in-buffer completion framework.
Completion starts automatically, depending on the values
`company-idle-delay' and `company-minimum-prefix-length'.
keymap during active completions (`company-active-map'):
\\{company-active-map}"
- nil " comp" company-mode-map
+ nil company-lighter company-mode-map
(if company-mode
(progn
(add-hook 'pre-command-hook 'company-pre-command nil t)
(company-cancel)
(kill-local-variable 'company-point)))
-(define-globalized-minor-mode global-company-mode company-mode
- (lambda () (company-mode 1)))
+;;;###autoload
+(define-globalized-minor-mode global-company-mode company-mode company-mode-on)
+
+(defun company-mode-on ()
+ (unless (or noninteractive (eq (aref (buffer-name) 0) ?\s))
+ (company-mode 1)))
(defsubst company-assert-enabled ()
(unless company-mode
;;; keymaps ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-(defvar company-overriding-keymap-bound nil)
-(make-variable-buffer-local 'company-overriding-keymap-bound)
-
-(defvar company-old-keymap nil)
-(make-variable-buffer-local 'company-old-keymap)
-
(defvar company-my-keymap nil)
(make-variable-buffer-local 'company-my-keymap)
+(defvar company-emulation-alist '((t . nil)))
+
(defsubst company-enable-overriding-keymap (keymap)
- (setq company-my-keymap keymap)
- (when company-overriding-keymap-bound
- (company-uninstall-map)))
+ (company-uninstall-map)
+ (setq company-my-keymap keymap))
+
+(defun company-ensure-emulation-alist ()
+ (unless (eq 'company-emulation-alist (car emulation-mode-map-alists))
+ (setq emulation-mode-map-alists
+ (cons 'company-emulation-alist
+ (delq 'company-emulation-alist emulation-mode-map-alists)))))
(defun company-install-map ()
- (unless (or company-overriding-keymap-bound
+ (unless (or (cdar company-emulation-alist)
(null company-my-keymap))
- (setq company-old-keymap overriding-terminal-local-map
- overriding-terminal-local-map company-my-keymap
- company-overriding-keymap-bound t)))
+ (setf (cdar company-emulation-alist) company-my-keymap)))
(defun company-uninstall-map ()
- (when (eq overriding-terminal-local-map company-my-keymap)
- (setq overriding-terminal-local-map company-old-keymap
- company-overriding-keymap-bound nil)))
+ (setf (cdar company-emulation-alist) nil))
;; Hack:
;; Emacs calculates the active keymaps before reading the event. That means we
(car (setq ppss (cdr ppss)))
(nth 3 ppss))))
+(if (fboundp 'locate-dominating-file)
+ (defalias 'company-locate-dominating-file 'locate-dominating-file)
+ (defun company-locate-dominating-file (file name)
+ (catch 'root
+ (let ((dir (file-name-directory file))
+ (prev-dir nil))
+ (while (not (equal dir prev-dir))
+ (when (file-exists-p (expand-file-name name dir))
+ (throw 'root dir))
+ (setq prev-dir dir
+ dir (file-name-directory (directory-file-name dir))))))))
+
(defun company-call-backend (&rest args)
(if (functionp company-backend)
(apply company-backend args)
(apply 'company--multi-backend-adapter company-backend args)))
(defun company--multi-backend-adapter (backends command &rest args)
- (case command
- ('candidates
- (apply 'append (mapcar (lambda (backend) (apply backend command args))
- backends)))
- ('sorted nil)
- ('duplicates t)
- (otherwise
- (let (value)
- (dolist (backend backends)
- (when (setq value (apply backend command args))
- (return value)))))))
+ (let ((backends (loop for b in backends
+ when (not (and (symbolp b)
+ (eq 'failed (get b 'company-init))))
+ collect b)))
+ (case command
+ (candidates
+ (loop for backend in backends
+ when (equal (funcall backend 'prefix)
+ (car args))
+ append (apply backend 'candidates args)))
+ (sorted nil)
+ (duplicates t)
+ (otherwise
+ (let (value)
+ (dolist (backend backends)
+ (when (setq value (apply backend command args))
+ (return value))))))))
;;; completion mechanism ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
"Non-nil, if explicit completion took place.")
(make-variable-buffer-local 'company--explicit-action)
+(defvar company--auto-completion nil
+ "Non-nil when current candidate is being completed automatically.
+Controlled by `company-auto-complete'.")
+
(defvar company--point-max nil)
(make-variable-buffer-local 'company--point-max)
(defsubst company-strip-prefix (str)
(substring str (length company-prefix)))
+(defmacro company-with-candidate-inserted (candidate &rest body)
+ "Evaluate BODY with CANDIDATE temporarily inserted.
+This is a tool for back-ends that need candidates inserted before they
+can retrieve meta-data for them."
+ (declare (indent 1))
+ `(let ((inhibit-modification-hooks t)
+ (inhibit-point-motion-hooks t)
+ (modified-p (buffer-modified-p)))
+ (insert (company-strip-prefix ,candidate))
+ (unwind-protect
+ (progn ,@body)
+ (delete-region company-point (point)))))
+
(defun company-explicit-action-p ()
"Return whether explicit completion action was taken by the user."
(or company--explicit-action
(defun company--should-complete ()
(and (not (or buffer-read-only overriding-terminal-local-map
- overriding-local-map))
+ overriding-local-map
+ (minibufferp)))
+ ;; Check if in the middle of entering a key combination.
+ (or (equal (this-command-keys-vector) [])
+ (not (keymapp (key-binding (this-command-keys-vector)))))
(eq company-idle-delay t)
(or (eq t company-begin-commands)
(memq this-command company-begin-commands)
(push (cons company-prefix company-candidates) company-candidates-cache)
;; Calculate common.
(let ((completion-ignore-case (company-call-backend 'ignore-case)))
- (setq company-common (try-completion company-prefix company-candidates)))
+ (setq company-common (company--safe-candidate
+ (try-completion company-prefix company-candidates))))
(when (eq company-common t)
(setq company-candidates nil)))
+(defun company--safe-candidate (str)
+ (or (company-call-backend 'crop str)
+ str))
+
(defun company-calculate-candidates (prefix)
- (let ((candidates (cdr (assoc prefix company-candidates-cache))))
+ (let ((candidates (cdr (assoc prefix company-candidates-cache)))
+ (ignore-case (company-call-backend 'ignore-case)))
(or candidates
(when company-candidates-cache
(let ((len (length prefix))
- (completion-ignore-case (company-call-backend 'ignore-case))
+ (completion-ignore-case ignore-case)
prev)
(dotimes (i (1+ len))
(when (setq prev (cdr (assoc (substring prefix 0 (- len i))
(while c2
(setcdr c2 (progn (while (equal (pop c2) (car c2)))
c2)))))))
- (if (or (cdr candidates)
- (not (equal (car candidates) prefix)))
- ;; Don't start when already completed and unique.
- candidates
- ;; Not the right place? maybe when setting?
- (and company-candidates t))))
+ (when candidates
+ (if (or (cdr candidates)
+ (not (eq t (compare-strings (car candidates) nil nil
+ prefix nil nil ignore-case))))
+ candidates
+ ;; Already completed and unique; don't start.
+ t))))
(defun company-idle-begin (buf win tick pos)
(and company-mode
(defun company-manual-begin ()
(interactive)
(setq company--explicit-action t)
- (company-auto-begin))
+ (unwind-protect
+ (company-auto-begin)
+ (unless company-candidates
+ (setq company--explicit-action nil))))
+
+(defun company-other-backend (&optional backward)
+ (interactive (list current-prefix-arg))
+ (company-assert-enabled)
+ (if company-backend
+ (let* ((after (cdr (member company-backend company-backends)))
+ (before (cdr (member company-backend (reverse company-backends))))
+ (next (if backward
+ (append before (reverse after))
+ (append after (reverse before)))))
+ (company-cancel)
+ (dolist (backend next)
+ (when (ignore-errors (company-begin-backend backend))
+ (return t))))
+ (company-manual-begin))
+ (unless company-candidates
+ (error "No other back-end")))
(defun company-require-match-p ()
(let ((backend-value (company-call-backend 'require-match)))
;; auto-complete
(save-excursion
(goto-char company-point)
- (company-complete-selection)
+ (let ((company--auto-completion t))
+ (company-complete-selection))
nil))
((and (company--string-incremental-p company-prefix new-prefix)
(company-require-match-p))
(company-cancel company-prefix)
nil)))))
+(defun company--good-prefix-p (prefix)
+ (and (or (company-explicit-action-p)
+ (unless (eq prefix 'stop)
+ (>= (or (cdr-safe prefix) (length prefix))
+ company-minimum-prefix-length)))
+ (stringp (or (car-safe prefix) prefix))))
+
(defun company--continue ()
(when (company-call-backend 'no-cache company-prefix)
;; Don't complete existing candidates, fetch new ones.
(setq company-candidates-cache nil))
(let* ((new-prefix (company-call-backend 'prefix))
- (c (when (and (stringp new-prefix)
- (or (company-explicit-action-p)
- (>= (length new-prefix)
- company-minimum-prefix-length))
+ (c (when (and (company--good-prefix-p new-prefix)
+ (setq new-prefix (or (car-safe new-prefix) new-prefix))
(= (- (point) (length new-prefix))
(- company-point (length company-prefix))))
+ (setq new-prefix (or (car-safe new-prefix) new-prefix))
(company-calculate-candidates new-prefix))))
(or (cond
((eq c t)
(funcall backend 'prefix))
(company--multi-backend-adapter backend 'prefix)))
(when prefix
- (when (and (stringp prefix)
- (>= (length prefix) company-minimum-prefix-length))
- (setq company-backend backend
+ (when (company--good-prefix-p prefix)
+ (setq prefix (or (car-safe prefix) prefix)
+ company-backend backend
c (company-calculate-candidates prefix))
;; t means complete/unique. We don't start, so no hooks.
- (when (consp c)
+ (if (not (consp c))
+ (when company--explicit-action
+ (message "No completion found"))
(setq company-prefix prefix)
+ (when (symbolp backend)
+ (setq company-lighter (concat " " (symbol-name backend))))
(company-update-candidates c)
(run-hook-with-args 'company-completion-started-hook
(company-explicit-action-p))
(return c)))))
(defun company-begin ()
- (setq company-candidates
- (or (and company-candidates (company--continue))
- (and (company--should-complete) (company--begin-new))))
+ (or (and company-candidates (company--continue))
+ (and (company--should-complete) (company--begin-new)))
(when company-candidates
(when (and company-end-of-buffer-workaround (eobp))
(save-excursion (insert "\n"))
(setq company-added-newline (buffer-chars-modified-tick)))
(setq company-point (point)
company--point-max (point-max))
+ (company-ensure-emulation-alist)
(company-enable-overriding-keymap company-active-map)
(company-call-frontends 'update)))
(set-buffer-modified-p nil))
(when company-prefix
(if (stringp result)
- (run-hook-with-args 'company-completion-finished-hook result)
+ (progn
+ (company-call-backend 'pre-completion result)
+ (run-hook-with-args 'company-completion-finished-hook result)
+ (company-call-backend 'post-completion result))
(run-hook-with-args 'company-completion-cancelled-hook result)))
(setq company-added-newline nil
company-backend nil
company-selection 0
company-selection-changed nil
company--explicit-action nil
+ company-lighter company-default-lighter
company--point-max nil
company-point nil)
(when company-timer
(interactive)
(company-search-assert-enabled)
(company-search-mode 0)
- (when last-input-event
- (clear-this-command-keys t)
- (setq unread-command-events (list last-input-event))))
+ (company--unread-last-input))
(defvar company-search-map
(let ((i 0)
(set-char-table-range (nth 1 keymap) (cons #x100 (max-char))
'company-search-printing-char)
(with-no-warnings
- ;; obselete in Emacs 23
+ ;; obsolete in Emacs 23
(let ((l (generic-character-list))
(table (nth 1 keymap)))
(while l
(when (company-manual-begin)
(company-set-selection (1- company-selection))))
+(defun company-select-next-or-abort ()
+ "Select the next candidate if more than one, else abort
+and invoke the normal binding."
+ (interactive)
+ (if (> company-candidates-length 1)
+ (company-select-next)
+ (company-abort)
+ (company--unread-last-input)))
+
+(defun company-select-previous-or-abort ()
+ "Select the previous candidate if more than one, else abort
+and invoke the normal binding."
+ (interactive)
+ (if (> company-candidates-length 1)
+ (company-select-previous)
+ (company-abort)
+ (company--unread-last-input)))
+
(defun company-select-mouse (event)
"Select the candidate picked by the mouse."
(interactive "e")
"Complete the selected candidate."
(interactive)
(when (company-manual-begin)
- (company-finish (nth company-selection company-candidates))))
+ (let ((result (nth company-selection company-candidates)))
+ (when company--auto-completion
+ (setq result (company--safe-candidate result)))
+ (company-finish result))))
(defun company-complete-common ()
"Complete the common part of all candidates."
(make-string len ?\ )))
(defsubst company-safe-substring (str from &optional to)
- (let ((len (length str)))
- (if (> from len)
- ""
- (if (and to (> to len))
- (concat (substring str from)
- (company-space-string (- to len)))
- (substring str from to)))))
+ (if (> from (string-width str))
+ ""
+ (with-temp-buffer
+ (insert str)
+ (move-to-column from)
+ (let ((beg (point)))
+ (if to
+ (progn
+ (move-to-column to)
+ (concat (buffer-substring beg (point))
+ (let ((padding (- to (current-column))))
+ (when (> padding 0)
+ (company-space-string padding)))))
+ (buffer-substring beg (point-max)))))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(erase-buffer)
(current-buffer)))
-(defmacro company-electric (&rest body)
+(defvar company--electric-commands
+ '(scroll-other-window scroll-other-window-down)
+ "List of Commands that won't break out of electric commands.")
+
+(defmacro company--electric-do (&rest body)
(declare (indent 0) (debug t))
`(when (company-manual-begin)
(save-window-excursion
(let ((height (window-height))
- (row (company--row)))
+ (row (company--row))
+ cmd)
,@body
(and (< (window-height) height)
(< (- (window-height) row 2) company-tooltip-limit)
(recenter (- (window-height) row 2)))
- (while (eq 'scroll-other-window
- (key-binding (vector (list (read-event)))))
- (call-interactively 'scroll-other-window))
- (when last-input-event
- (clear-this-command-keys t)
- (setq unread-command-events (list last-input-event)))))))
+ (while (memq (setq cmd (key-binding (vector (list (read-event)))))
+ company--electric-commands)
+ (call-interactively cmd))
+ (company--unread-last-input)))))
+
+(defun company--unread-last-input ()
+ (when last-input-event
+ (clear-this-command-keys t)
+ (setq unread-command-events (list last-input-event))))
(defun company-show-doc-buffer ()
"Temporarily show a buffer with the complete documentation for the selection."
(interactive)
- (company-electric
- (let ((selected (nth company-selection company-candidates)))
- (display-buffer (or (company-call-backend 'doc-buffer selected)
- (error "No documentation available")) t))))
+ (company--electric-do
+ (let* ((selected (nth company-selection company-candidates))
+ (doc-buffer (or (company-call-backend 'doc-buffer selected)
+ (error "No documentation available"))))
+ (with-current-buffer doc-buffer
+ (goto-char (point-min)))
+ (display-buffer doc-buffer t))))
(put 'company-show-doc-buffer 'company-keep t)
(defun company-show-location ()
"Temporarily display a buffer showing the selected candidate in context."
(interactive)
- (company-electric
+ (company--electric-do
(let* ((selected (nth company-selection company-candidates))
(location (company-call-backend 'location selected))
(pos (or (cdr location) (error "No location available")))
(buffer (or (and (bufferp (car location)) (car location))
(find-file-noselect (car location) t))))
(with-selected-window (display-buffer buffer t)
- (if (bufferp (car location))
- (goto-char pos)
- (goto-line pos))
+ (save-restriction
+ (widen)
+ (if (bufferp (car location))
+ (goto-char pos)
+ (goto-char (point-min))
+ (forward-line (1- pos))))
(set-window-start nil (point))))))
(put 'company-show-location 'company-keep t)
(remove-hook 'company-completion-finished-hook company-callback t)
(remove-hook 'company-completion-cancelled-hook 'company-remove-callback t)
(remove-hook 'company-completion-finished-hook 'company-remove-callback t)
- (set-marker company-begin-with-marker nil))
+ (when company-begin-with-marker
+ (set-marker company-begin-with-marker nil)))
(defun company-begin-backend (backend &optional callback)
"Start a completion at point using BACKEND."
(setq company-backend backend)
;; Return non-nil if active.
(or (company-manual-begin)
- (error "Cannot complete at point")))
+ (progn
+ (setq company-backend nil)
+ (error "Cannot complete at point"))))
(defun company-begin-with (candidates
&optional prefix-length require-match callback)
(defun company-buffer-lines (beg end)
(goto-char beg)
- (let ((row (company--row))
- lines)
- (while (and (equal (move-to-window-line (incf row)) row)
+ (let (lines)
+ (while (and (= 1 (vertical-motion 1))
(<= (point) end))
(push (buffer-substring beg (min end (1- (point)))) lines)
(setq beg (point)))
new
(company-safe-substring old (+ offset (length new)))))
-(defun company-replacement-string (old lines column nl)
+(defsubst company--length-limit (lst limit)
+ (if (nthcdr limit lst)
+ limit
+ (length lst)))
+
+(defun company--replacement-string (lines old column nl &optional align-top)
+
+ (let ((width (length (car lines))))
+ (when (> width (- (window-width) column))
+ (setq column (max 0 (- (window-width) width)))))
+
(let (new)
- ;; Inject into old lines.
+ (when align-top
+ ;; untouched lines first
+ (dotimes (i (- (length old) (length lines)))
+ (push (pop old) new)))
+ ;; length into old lines.
(while old
(push (company-modify-line (pop old) (pop lines) column) new))
;; Append whole new lines.
(while lines
(push (concat (company-space-string column) (pop lines)) new))
- (concat (when nl "\n")
- (mapconcat 'identity (nreverse new) "\n")
- "\n")))
-(defun company-create-lines (column selection limit)
+ (let ((str (concat (when nl "\n")
+ (mapconcat 'identity (nreverse new) "\n")
+ "\n")))
+ (font-lock-append-text-property 0 (length str) 'face 'default str)
+ str)))
+
+(defun company--create-lines (selection limit)
(let ((len company-candidates-length)
(numbered 99999)
(dotimes (i len)
(setq width (max (length (pop lines-copy)) width)))
- (setq width (min width (- (window-width) column)))
+ (setq width (min width (window-width)))
(setq lines-copy lines)
;; show
-(defsubst company-pseudo-tooltip-height ()
- "Calculate the appropriate tooltip height."
- (max 3 (min company-tooltip-limit
- (- (window-height) 2
- (count-lines (window-start) (point-at-bol))))))
+(defsubst company--window-inner-height ()
+ (let ((edges (window-inside-edges (selected-window))))
+ (- (nth 3 edges) (nth 1 edges))))
+
+(defsubst company--pseudo-tooltip-height ()
+ "Calculate the appropriate tooltip height.
+Returns a negative number if the tooltip should be displayed above point."
+ (let* ((lines (company--row))
+ (below (- (company--window-inner-height) 1 lines)))
+ (if (and (< below (min company-tooltip-minimum company-candidates-length))
+ (> lines below))
+ (- (max 3 (min company-tooltip-limit lines)))
+ (max 3 (min company-tooltip-limit below)))))
(defun company-pseudo-tooltip-show (row column selection)
(company-pseudo-tooltip-hide)
(move-to-column 0)
- (let* ((height (company-pseudo-tooltip-height))
- (lines (company-create-lines column selection height))
- (nl (< (move-to-window-line row) row))
- (beg (point))
- (end (save-excursion
- (move-to-window-line (+ row height))
- (point)))
- (old-string
- (mapcar 'company-untabify (company-buffer-lines beg end)))
- str)
-
- (setq company-pseudo-tooltip-overlay (make-overlay beg end))
-
- (overlay-put company-pseudo-tooltip-overlay 'company-old old-string)
- (overlay-put company-pseudo-tooltip-overlay 'company-column column)
- (overlay-put company-pseudo-tooltip-overlay 'company-nl nl)
- (overlay-put company-pseudo-tooltip-overlay 'company-before
- (company-replacement-string old-string lines column nl))
- (overlay-put company-pseudo-tooltip-overlay 'company-height height)
-
- (overlay-put company-pseudo-tooltip-overlay 'window (selected-window)))))
+ (let* ((height (company--pseudo-tooltip-height))
+ above)
+
+ (when (< height 0)
+ (setq row (+ row height -1)
+ above t))
+
+ (let* ((nl (< (move-to-window-line row) row))
+ (beg (point))
+ (end (save-excursion
+ (move-to-window-line (+ row (abs height)))
+ (point)))
+ (ov (make-overlay beg end))
+ (args (list (mapcar 'company-untabify
+ (company-buffer-lines beg end))
+ column nl above)))
+
+ (setq company-pseudo-tooltip-overlay ov)
+ (overlay-put ov 'company-replacement-args args)
+ (overlay-put ov 'company-before
+ (apply 'company--replacement-string
+ (company--create-lines selection (abs height))
+ args))
+
+ (overlay-put ov 'company-column column)
+ (overlay-put ov 'company-height height)))))
(defun company-pseudo-tooltip-show-at-point (pos)
(let ((col-row (company--col-row pos)))
company-selection))))
(defun company-pseudo-tooltip-edit (lines selection)
- (let* ((old-string (overlay-get company-pseudo-tooltip-overlay 'company-old))
- (column (overlay-get company-pseudo-tooltip-overlay 'company-column))
- (nl (overlay-get company-pseudo-tooltip-overlay 'company-nl))
- (height (overlay-get company-pseudo-tooltip-overlay 'company-height))
- (lines (company-create-lines column selection height)))
+ (let ((column (overlay-get company-pseudo-tooltip-overlay 'company-column))
+ (height (overlay-get company-pseudo-tooltip-overlay 'company-height)))
(overlay-put company-pseudo-tooltip-overlay 'company-before
- (company-replacement-string old-string lines column nl))))
+ (apply 'company--replacement-string
+ (company--create-lines selection (abs height))
+ (overlay-get company-pseudo-tooltip-overlay
+ 'company-replacement-args)))))
(defun company-pseudo-tooltip-hide ()
(when company-pseudo-tooltip-overlay
(overlay-get company-pseudo-tooltip-overlay 'company-before))
(overlay-put company-pseudo-tooltip-overlay 'window (selected-window))))
+(defun company-pseudo-tooltip-guard ()
+ (buffer-substring-no-properties
+ (point) (overlay-start company-pseudo-tooltip-overlay)))
+
(defun company-pseudo-tooltip-frontend (command)
- "A `company-mode' front-end similar to a tool-tip but based on overlays."
+ "`company-mode' front-end similar to a tool-tip but based on overlays."
(case command
- ('pre-command (company-pseudo-tooltip-hide-temporarily))
- ('post-command
- (unless (and (overlayp company-pseudo-tooltip-overlay)
- (equal (overlay-get company-pseudo-tooltip-overlay
- 'company-height)
- (company-pseudo-tooltip-height)))
- ;; Redraw needed.
- (company-pseudo-tooltip-show-at-point (- (point)
- (length company-prefix))))
+ (pre-command (company-pseudo-tooltip-hide-temporarily))
+ (post-command
+ (let ((old-height (if (overlayp company-pseudo-tooltip-overlay)
+ (overlay-get company-pseudo-tooltip-overlay
+ 'company-height)
+ 0))
+ (new-height (company--pseudo-tooltip-height)))
+ (unless (and (>= (* old-height new-height) 0)
+ (>= (abs old-height) (abs new-height))
+ (equal (company-pseudo-tooltip-guard)
+ (overlay-get company-pseudo-tooltip-overlay
+ 'company-guard)))
+ ;; Redraw needed.
+ (company-pseudo-tooltip-show-at-point (- (point)
+ (length company-prefix)))
+ (overlay-put company-pseudo-tooltip-overlay
+ 'company-guard (company-pseudo-tooltip-guard))))
(company-pseudo-tooltip-unhide))
- ('hide (company-pseudo-tooltip-hide)
- (setq company-tooltip-offset 0))
- ('update (when (overlayp company-pseudo-tooltip-overlay)
- (company-pseudo-tooltip-edit company-candidates
- company-selection)))))
+ (hide (company-pseudo-tooltip-hide)
+ (setq company-tooltip-offset 0))
+ (update (when (overlayp company-pseudo-tooltip-overlay)
+ (company-pseudo-tooltip-edit company-candidates
+ company-selection)))))
(defun company-pseudo-tooltip-unless-just-one-frontend (command)
"`company-pseudo-tooltip-frontend', but not shown for single candidates."
(setq company-preview-overlay nil)))
(defun company-preview-frontend (command)
- "A `company-mode' front-end showing the selection as if it had been inserted."
+ "`company-mode' front-end showing the selection as if it had been inserted."
(case command
- ('pre-command (company-preview-hide))
- ('post-command (company-preview-show-at-point (point)))
- ('hide (company-preview-hide))))
+ (pre-command (company-preview-hide))
+ (post-command (company-preview-show-at-point (point)))
+ (hide (company-preview-hide))))
(defun company-preview-if-just-one-frontend (command)
"`company-preview-frontend', but only shown for single candidates."
(defvar company-echo-timer nil)
-(defvar company-echo-delay .1)
+(defvar company-echo-delay .01)
(defun company-echo-show (&optional getter)
(when getter
(defsubst company-echo-show-soon (&optional getter)
(when company-echo-timer
(cancel-timer company-echo-timer))
- (setq company-echo-timer (run-with-timer company-echo-delay nil
- 'company-echo-show getter)))
+ (setq company-echo-timer (run-with-timer 0 nil 'company-echo-show getter)))
+
+(defsubst company-echo-show-when-idle (&optional getter)
+ (when (sit-for .01)
+ (company-echo-show getter)))
+
+(defsubst company-echo-show-when-not-busy (&optional getter)
+ "Run `company-echo-show' with arg GETTER once Emacs isn't busy."
+ (when (sit-for company-echo-delay)
+ (company-echo-show getter)))
(defun company-echo-format ()
"}")))
(defun company-echo-hide ()
- (when company-echo-timer
- (cancel-timer company-echo-timer))
(unless (equal company-echo-last-msg "")
(setq company-echo-last-msg "")
(company-echo-show)))
(defun company-echo-frontend (command)
- "A `company-mode' front-end showing the candidates in the echo area."
+ "`company-mode' front-end showing the candidates in the echo area."
(case command
- ('pre-command (company-echo-show-soon))
- ('post-command (company-echo-show-soon 'company-echo-format))
- ('hide (company-echo-hide))))
+ (post-command (company-echo-show-soon 'company-echo-format))
+ (hide (company-echo-hide))))
(defun company-echo-strip-common-frontend (command)
- "A `company-mode' front-end showing the candidates in the echo area."
+ "`company-mode' front-end showing the candidates in the echo area."
(case command
- ('pre-command (company-echo-show-soon))
- ('post-command (company-echo-show-soon 'company-echo-strip-common-format))
- ('hide (company-echo-hide))))
+ (post-command (company-echo-show-soon 'company-echo-strip-common-format))
+ (hide (company-echo-hide))))
(defun company-echo-metadata-frontend (command)
- "A `company-mode' front-end showing the documentation in the echo area."
+ "`company-mode' front-end showing the documentation in the echo area."
(case command
- ('pre-command (company-echo-show-soon))
- ('post-command (company-echo-show-soon 'company-fetch-metadata))
- ('hide (company-echo-hide))))
+ (post-command (company-echo-show-when-idle 'company-fetch-metadata))
+ (hide (company-echo-hide))))
(provide 'company)
;;; company.el ends here