;;; company.el --- Modular in-buffer completion framework -*- lexical-binding: t -*-
-;; Copyright (C) 2009-2013 Free Software Foundation, Inc.
+;; Copyright (C) 2009-2014 Free Software Foundation, Inc.
;; Author: Nikolaj Schumacher
;; Maintainer: Dmitry Gutov <dgutov@yandex.ru>
-;; Version: 0.6.7
+;; Version: 0.6.13
;; Keywords: abbrev, convenience, matching
-;; URL: http://company-mode.github.com/
+;; URL: http://company-mode.github.io/
;; Compatibility: GNU Emacs 22.x, GNU Emacs 23.x, GNU Emacs 24.x
;; This file is part of GNU Emacs.
(eval-when-compile (require 'cl))
+;; FIXME: Use `user-error'.
(add-to-list 'debug-ignored-errors "^.* frontend cannot be used twice$")
(add-to-list 'debug-ignored-errors "^Echo area cannot be used twice$")
(add-to-list 'debug-ignored-errors "^No \\(document\\|loc\\)ation available$")
Each front-end is a function that takes one argument. It is called with
one of the following arguments:
-'show: When the visualization should start.
+`show': When the visualization should start.
-'hide: When the visualization should end.
+`hide': When the visualization should end.
-'update: When the data has been updated.
+`update': When the data has been updated.
-'pre-command: Before every command that is executed while the
+`pre-command': Before every command that is executed while the
visualization is active.
-'post-command: After every command that is executed while the
+`post-command': After every command that is executed while the
visualization is active.
The visualized data is stored in `company-prefix', `company-candidates',
If this many lines are not available, prefer to display the tooltip above."
:type 'integer)
+(defcustom company-tooltip-margin 1
+ "Width of margin columns to show around the toolip."
+ :type 'integer)
+
(defvar company-safe-backends
'((company-abbrev . "Abbrev")
- (company-clang . "clang")
+ (company-capf . "completion-at-point-functions")
+ (company-clang . "Clang")
+ (company-cmake . "CMake")
(company-css . "CSS")
(company-dabbrev . "dabbrev for plain text")
(company-dabbrev-code . "dabbrev for code")
- (company-eclim . "eclim (an Eclipse interace)")
+ (company-eclim . "Eclim (an Eclipse interface)")
(company-elisp . "Emacs Lisp")
(company-etags . "etags")
(company-files . "Files")
(company-gtags . "GNU Global")
- (company-ispell . "ispell")
+ (company-ispell . "Ispell")
(company-keywords . "Programming language keywords")
(company-nxml . "nxml")
(company-oddmuse . "Oddmuse")
(company-pysmell . "PySmell")
(company-ropemacs . "ropemacs")
- (company-semantic . "CEDET Semantic")
+ (company-semantic . "Semantic")
(company-tempo . "Tempo templates")
(company-xcode . "Xcode")))
(put 'company-safe-backends 'risky-local-variable t)
(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-clang company-semantic company-eclim
- company-xcode company-ropemacs
+(defvar company--include-capf (version< "24.3.50" emacs-version))
+
+(defcustom company-backends `(,@(unless company--include-capf
+ (list 'company-elisp))
+ company-nxml company-css
+ company-eclim company-semantic company-clang
+ company-xcode company-ropemacs company-cmake
+ ,@(when company--include-capf
+ (list 'company-capf))
(company-gtags company-etags company-dabbrev-code
company-keywords)
company-oddmuse company-files company-dabbrev)
of the following:
`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
-\(e.g. if it is in the middle of a string\). 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.
+text immediately before point. Returning nil passes control to the next
+back-end. The function should return `stop' if it should complete but
+cannot \(e.g. if it is in the middle of a string\). Instead of a string,
+the back-end may return a cons where car is the prefix and cdr is used in
+`company-minimum-prefix-length' test. It's either number or t, in which
+case the test automatically succeeds.
`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
-are sorted and will not need to be sorted again.
+`sorted': 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
from the list.
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
-return a (short) documentation string for it.
+`meta': The second argument is a completion candidate. 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. Return a
+buffer with documentation for it. Preferably use `company-doc-buffer',
-`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.
+`location': The second argument is a completion candidate. 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 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.
+`require-match': If this returns 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.
+`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 back-end 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.
+`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
"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."
+If you indend to use it to post-process candidates from a specific
+back-end, consider using the `post-completion' command instead."
:type 'hook)
(defcustom company-minimum-prefix-length 3
- "The minimum prefix length for automatic completion."
+ "The minimum prefix length for idle completion."
:type '(integer :tag "prefix length"))
(defcustom company-require-match 'company-explicit-action-p
"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
-'require-match. `company-auto-complete' also takes precedence over this."
+This can be overridden by the back-end, if it returns t or `never' to
+`require-match'. `company-auto-complete' also takes precedence over this."
:type '(choice (const :tag "Off" nil)
(function :tag "Predicate function")
(const :tag "On, if user interaction took place"
'company-explicit-action-p)
(const :tag "On" t)))
-(defcustom company-auto-complete 'company-explicit-action-p
+(defcustom company-auto-complete nil
"Determines when to auto-complete.
-If this is enabled, all characters from `company-auto-complete-chars' complete
-the selected completion. This can also be a function."
+If this is enabled, all characters from `company-auto-complete-chars'
+trigger insertion of the selected completion candidate.
+This can also be a function."
:type '(choice (const :tag "Off" nil)
(function :tag "Predicate function")
(const :tag "On, if user interaction took place"
'company-explicit-action-p)
(const :tag "On" t)))
-(defcustom company-auto-complete-chars '(?\ ?\( ?\) ?. ?\" ?$ ?\' ?< ?| ?!)
- "Determines which characters trigger an automatic completion.
-See `company-auto-complete'. If this is a string, each string character causes
-completion. If it is a list of syntax description characters (see
+(defcustom company-auto-complete-chars '(?\ ?\) ?.)
+ "Determines which characters trigger auto-completion.
+See `company-auto-complete'. If this is a string, each string character
+tiggers auto-completion. If it is a list of syntax description characters (see
`modify-syntax-entry'), all characters with that syntax auto-complete.
This can also be a function, which is called with the new input and should
(function :tag "Predicate function")))
(defcustom company-idle-delay .7
- "The idle delay in seconds until automatic completions starts.
-A value of nil means never complete automatically, t means complete
+ "The idle delay in seconds until completion starts automatically.
+A value of nil means no idle completion, t means show candidates
immediately when a prefix of `company-minimum-prefix-length' is reached."
:type '(choice (const :tag "never (nil)" nil)
(const :tag "immediate (t)" t)
(number :tag "seconds")))
-(defcustom company-begin-commands t
- "A list of commands following which company will start completing.
-If this is t, it will complete after any command. See `company-idle-delay'.
+(defcustom company-begin-commands '(self-insert-command)
+ "A list of commands after which idle completion is allowed.
+If this is t, it can show completions after any command. See
+`company-idle-delay'.
-Alternatively any command with a non-nil 'company-begin property is treated as
-if it was on this list."
+Alternatively, any command with a non-nil `company-begin' property is
+treated as if it was on this list."
:type '(choice (const :tag "Any command" t)
(const :tag "Self insert command" '(self-insert-command))
(repeat :tag "Commands" function)))
:type '(choice (const :tag "off" nil)
(const :tag "on" t)))
+(defcustom company-selection-wrap-around nil
+ "If enabled, selecting item before first or after last wraps around."
+ :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.
The work-around consists of adding a newline.")
`company-filter-candidates'. These can be used while completion is
inactive, as well.
-The completion data is retrieved using `company-backends' and displayed using
-`company-frontends'. If you want to start a specific back-end, call it
-interactively or use `company-begin-backend'.
+The completion data is retrieved using `company-backends' and displayed
+using `company-frontends'. If you want to start a specific back-end, call
+it interactively or use `company-begin-backend'.
regular keymap (`company-mode-map'):
(company-cancel)
(kill-local-variable 'company-point)))
+(defcustom company-global-modes t
+ "Modes for which `company-mode' mode is turned on by `global-company-mode'.
+If nil, means no modes. If t, then all major modes have it turned on.
+If a list, it should be a list of `major-mode' symbol names for which
+`company-mode' should be automatically turned on. The sense of the list is
+negated if it begins with `not'. For example:
+ (c-mode c++-mode)
+means that `company-mode' is turned on for buffers in C and C++ modes only.
+ (not message-mode)
+means that `company-mode' is always turned on except in `message-mode' buffers."
+ :type '(choice (const :tag "none" nil)
+ (const :tag "all" t)
+ (set :menu-tag "mode specific" :tag "modes"
+ :value (not)
+ (const :tag "Except" not)
+ (repeat :inline t (symbol :tag "mode")))))
+
;;;###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))
+ (when (and (not (or noninteractive (eq (aref (buffer-name) 0) ?\s)))
+ (cond ((eq company-global-modes t)
+ t)
+ ((eq (car-safe company-global-modes) 'not)
+ (not (memq major-mode (cdr company-global-modes))))
+ (t (memq major-mode company-global-modes))))
(company-mode 1)))
(defsubst company-assert-enabled ()
(defun company-input-noop ()
(push 31415926 unread-command-events))
-;; Hack:
-;; posn-col-row is incorrect in older Emacsen when line-spacing is set
-(defun company--col-row (&optional pos)
- (let ((posn (posn-at-point pos)))
- (cons (car (posn-col-row posn)) (cdr (posn-actual-col-row posn)))))
-
-(defsubst company--column (&optional pos)
- (car (posn-col-row (posn-at-point pos))))
-
-(defsubst company--row (&optional pos)
- (cdr (posn-actual-col-row (posn-at-point pos))))
+(defun company--column (&optional pos)
+ (save-excursion
+ (when pos (goto-char pos))
+ (save-restriction
+ (+ (save-excursion
+ (vertical-motion 0)
+ (narrow-to-region (point) (point-max))
+ (let ((prefix (get-text-property (point) 'line-prefix)))
+ (if prefix (length prefix) 0)))
+ (current-column)))))
+
+(defun company--row (&optional pos)
+ (save-excursion
+ (when pos (goto-char pos))
+ (count-screen-lines (window-start)
+ (progn (vertical-motion 0) (point)))))
;;; backends ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(defvar company-backend nil)
+(make-variable-buffer-local 'company-backend)
+
(defun company-grab (regexp &optional expression limit)
(when (looking-back regexp limit)
(or (match-string-no-properties (or expression 0)) "")))
;;; completion mechanism ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-(defvar company-backend nil)
-(make-variable-buffer-local 'company-backend)
-
(defvar company-prefix nil)
(make-variable-buffer-local 'company-prefix)
(make-variable-buffer-local 'company--explicit-action)
(defvar company--auto-completion nil
- "Non-nil when current candidate is being completed automatically.
+ "Non-nil when current candidate is being inserted automatically.
Controlled by `company-auto-complete'.")
(defvar company--point-max nil)
(defsubst company-strip-prefix (str)
(substring str (length company-prefix)))
+(defun company--insert-candidate (candidate)
+ ;; XXX: Return value we check here is subject to change.
+ (set-text-properties 0 (length candidate) nil candidate)
+ (if (eq (company-call-backend 'ignore-case) 'keep-prefix)
+ (insert (company-strip-prefix candidate))
+ (delete-region (- (point) (length company-prefix)) (point))
+ (insert candidate)))
+
(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
`(let ((inhibit-modification-hooks t)
(inhibit-point-motion-hooks t)
(modified-p (buffer-modified-p)))
- (insert (company-strip-prefix ,candidate))
+ (company--insert-candidate ,candidate)
(unwind-protect
(progn ,@body)
(delete-region company-point (point)))))
(or company--explicit-action
company-selection-changed))
-(defsubst company-reformat (candidate)
+(defun company-reformat (candidate)
;; company-ispell needs this, because the results are always lower-case
;; It's mory efficient to fix it only when they are displayed.
- (concat company-prefix (substring candidate (length company-prefix))))
+ ;; FIXME: Adopt the current text's capitalization instead?
+ (if (eq (company-call-backend 'ignore-case) 'keep-prefix)
+ (concat company-prefix (substring candidate (length company-prefix)))
+ candidate))
(defun company--should-complete ()
(and (not (or buffer-read-only overriding-terminal-local-map
- overriding-local-map
- (minibufferp)))
+ overriding-local-map))
;; Check if in the middle of entering a key combination.
(or (equal (this-command-keys-vector) [])
(not (keymapp (key-binding (this-command-keys-vector)))))
(and (symbolp this-command) (get this-command 'company-begin)))
(not (and transient-mark-mode mark-active))))
-(defsubst company-call-frontends (command)
+(defun company-call-frontends (command)
(dolist (frontend company-frontends)
(condition-case err
(funcall frontend command)
(error (error "Company: Front-end %s error \"%s\" on command %s"
frontend (error-message-string err) command)))))
-(defsubst company-set-selection (selection &optional force-update)
- (setq selection (max 0 (min (1- company-candidates-length) selection)))
+(defun company-set-selection (selection &optional force-update)
+ (setq selection
+ (if company-selection-wrap-around
+ (mod selection company-candidates-length)
+ (max 0 (min (1- company-candidates-length) selection))))
(when (or force-update (not (equal selection company-selection)))
(setq company-selection selection
company-selection-changed t)
(push (cons company-prefix company-candidates) company-candidates-cache)
;; Calculate common.
(let ((completion-ignore-case (company-call-backend 'ignore-case)))
- (setq company-common (company--safe-candidate
- (try-completion company-prefix company-candidates))))
- (when (eq company-common t)
- (setq company-candidates nil)))
+ ;; We want to support non-prefix completion, so filtering is the
+ ;; responsibility of each respective backend, not ours.
+ ;; On the other hand, we don't want to replace non-prefix input in
+ ;; `company-complete-common'.
+ (setq company-common
+ (if (cdr company-candidates)
+ (company--safe-candidate
+ (try-completion company-prefix company-candidates))
+ (car company-candidates)))))
(defun company--safe-candidate (str)
(or (company-call-backend 'crop str)
(defun company-require-match-p ()
(let ((backend-value (company-call-backend 'require-match)))
(or (eq backend-value t)
- (and (if (functionp company-require-match)
+ (and (not (eq backend-value 'never))
+ (if (functionp company-require-match)
(funcall company-require-match)
- (eq company-require-match t))
- (not (eq backend-value 'never))))))
-
-(defun company-punctuation-p (input)
- "Return non-nil, if input starts with punctuation or parentheses."
- (memq (char-syntax (string-to-char input)) '(?. ?\( ?\))))
+ (eq company-require-match t))))))
(defun company-auto-complete-p (input)
"Return non-nil, if input starts with punctuation or parentheses."
((and (company--string-incremental-p company-prefix new-prefix)
(company-require-match-p))
;; wrong incremental input, but required match
- (backward-delete-char (length input))
+ (delete-char (- (length input)))
(ding)
(message "Matching input is required")
company-candidates)
(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)))
+ (or (eq (cdr-safe prefix) t)
+ (>= (or (cdr-safe prefix) (length prefix))
+ company-minimum-prefix-length))))
(stringp (or (car-safe prefix) prefix))))
(defun company--continue ()
(setq company-point (point)))
(defun company-finish (result)
- (insert (company-strip-prefix result))
+ (company--insert-candidate result)
(company-cancel result)
;; Don't start again, unless started manually.
(setq company-point (point)))
(kill-local-variable 'company-search-old-selection)
(company-enable-overriding-keymap company-active-map)))
-(defsubst company-search-assert-enabled ()
+(defun company-search-assert-enabled ()
(company-assert-enabled)
(unless company-search-mode
(company-uninstall-map)
Regular characters are appended to the search string.
-The command `company-search-kill-others' (\\[company-search-kill-others]) uses
- the search string to limit the completion candidates."
+The command `company-search-kill-others' (\\[company-search-kill-others])
+uses the search string to limit the completion candidates."
(interactive)
(company-search-mode 1)
(company-enable-overriding-keymap company-search-map))
(company-abort)
(company--unread-last-input)))
+(defvar company-pseudo-tooltip-overlay)
+
+(defvar company-tooltip-offset)
+
+(defun company--inside-tooltip-p (event-col-row row height)
+ (let* ((ovl company-pseudo-tooltip-overlay)
+ (column (overlay-get ovl 'company-column))
+ (width (overlay-get ovl 'company-width))
+ (evt-col (car event-col-row))
+ (evt-row (cdr event-col-row)))
+ (and (>= evt-col column)
+ (< evt-col (+ column width))
+ (if (> height 0)
+ (and (> evt-row row)
+ (<= evt-row (+ row height) ))
+ (and (< evt-row row)
+ (>= evt-row (+ row height)))))))
+
+(defun company--event-col-row (event)
+ (let* ((col-row (posn-actual-col-row (event-start event)))
+ (col (car col-row))
+ (row (cdr col-row)))
+ (incf col (window-hscroll))
+ (and header-line-format
+ (version< "24" emacs-version)
+ (decf row))
+ (cons col row)))
+
(defun company-select-mouse (event)
"Select the candidate picked by the mouse."
(interactive "e")
- (when (nth 4 (event-start event))
- (company-set-selection (- (cdr (posn-actual-col-row (event-start event)))
- (company--row)
- 1))
- t))
+ (let ((event-col-row (company--event-col-row event))
+ (ovl-row (company--row))
+ (ovl-height (and company-pseudo-tooltip-overlay
+ (min (overlay-get company-pseudo-tooltip-overlay
+ 'company-height)
+ company-candidates-length))))
+ (if (and ovl-height
+ (company--inside-tooltip-p event-col-row ovl-row ovl-height))
+ (progn
+ (company-set-selection (+ (cdr event-col-row)
+ (if (zerop company-tooltip-offset)
+ -1
+ (- company-tooltip-offset 2))
+ (- ovl-row)
+ (if (< ovl-height 0)
+ (- 1 ovl-height)
+ 0)))
+ t)
+ (company-abort)
+ (company--unread-last-input)
+ nil)))
(defun company-complete-mouse (event)
- "Complete the candidate picked by the mouse."
+ "Insert the candidate picked by the mouse."
(interactive "e")
(when (company-select-mouse event)
(company-complete-selection)))
(defun company-complete-selection ()
- "Complete the selected candidate."
+ "Insert the selected candidate."
(interactive)
(when (company-manual-begin)
(let ((result (nth company-selection company-candidates)))
(company-finish result))))
(defun company-complete-common ()
- "Complete the common part of all candidates."
+ "Insert the common part of all candidates."
(interactive)
(when (company-manual-begin)
(if (and (not (cdr company-candidates))
(equal company-common (car company-candidates)))
(company-complete-selection)
- (insert (company-strip-prefix company-common)))))
+ (when company-common
+ (company--insert-candidate company-common)))))
(defun company-complete ()
- "Complete the common part of all candidates or the current selection.
-The first time this is called, the common part is completed, the second time, or
-when the selection has been changed, the selected candidate is completed."
+ "Insert the common part of all candidates or the current selection.
+The first time this is called, the common part is inserted, the second
+time, or when the selection has been changed, the selected candidate is
+inserted."
(interactive)
(when (company-manual-begin)
(if (or company-selection-changed
(setq this-command 'company-complete-common))))
(defun company-complete-number (n)
- "Complete the Nth candidate.
+ "Insert the Nth candidate.
To show the number next to the candidates in some back-ends, enable
`company-show-numbers'."
(when (company-manual-begin)
(push (make-string (- company-space-strings-limit 1 i) ?\ ) lst))
(apply 'vector lst)))
-(defsubst company-space-string (len)
+(defun company-space-string (len)
(if (< len company-space-strings-limit)
(aref company-space-strings len)
(make-string len ?\ )))
-(defsubst company-safe-substring (str from &optional to)
+(defun company-safe-substring (str from &optional to)
(if (> from (string-width str))
""
(with-temp-buffer
(cdr company-last-metadata)))
(defun company-doc-buffer (&optional string)
- (with-current-buffer (get-buffer-create "*Company meta-data*")
+ (with-current-buffer (get-buffer-create "*company-documentation*")
(erase-buffer)
+ (when string
+ (save-excursion
+ (insert string)))
(current-buffer)))
(defvar company--electric-commands
(setq unread-command-events (list last-input-event))))
(defun company-show-doc-buffer ()
- "Temporarily show a buffer with the complete documentation for the selection."
+ "Temporarily show the documentation buffer for the selection."
(interactive)
(company--electric-do
(let* ((selected (nth company-selection company-candidates))
(defun company-begin-with (candidates
&optional prefix-length require-match callback)
"Start a completion at point.
-CANDIDATES is the list of candidates to use and PREFIX-LENGTH is the length of
-the prefix that already is in the buffer before point. It defaults to 0.
+CANDIDATES is the list of candidates to use and PREFIX-LENGTH is the length
+of the prefix that already is in the buffer before point.
+It defaults to 0.
-CALLBACK is a function called with the selected result if the user successfully
-completes the input.
+CALLBACK is a function called with the selected result if the user
+successfully completes the input.
-Example:
-\(company-begin-with '\(\"foo\" \"foobar\" \"foobarbaz\"\)\)"
+Example: \(company-begin-with '\(\"foo\" \"foobar\" \"foobarbaz\"\)\)"
+ ;; FIXME: When Emacs 23 is no longer a concern, replace
+ ;; `company-begin-with-marker' with a lexical variable; use a lexical closure.
(setq company-begin-with-marker (copy-marker (point) t))
(company-begin-backend
`(lambda (command &optional arg &rest ignored)
(defsubst company-round-tab (arg)
(* (/ (+ arg tab-width) tab-width) tab-width))
-(defun company-untabify (str)
+(defun company-plainify (str)
+ (let ((prefix (get-text-property 0 'line-prefix str)))
+ (when prefix ; Keep the original value unmodified, for no special reason.
+ (setq str (concat prefix str))
+ (remove-text-properties 0 (length str) '(line-prefix) str)))
(let* ((pieces (split-string str "\t"))
(copy pieces))
(while (cdr copy)
(pop copy))
(apply 'concat pieces)))
+(defun company--highlight-common (line properties)
+ ;; XXX: Subject to change.
+ (let ((common (or (company-call-backend 'common-part line)
+ (length company-common))))
+ (add-text-properties 0 common properties line)))
+
(defun company-fill-propertize (line width selected)
- (setq line (company-safe-substring line 0 width))
- (add-text-properties 0 width '(face company-tooltip
- mouse-face company-tooltip-mouse)
- line)
- (add-text-properties 0 (length company-common)
- '(face company-tooltip-common
- mouse-face company-tooltip-mouse)
- line)
- (when selected
- (if (and company-search-string
- (string-match (regexp-quote company-search-string) line
- (length company-prefix)))
- (progn
- (add-text-properties (match-beginning 0) (match-end 0)
- '(face company-tooltip-selection)
- line)
- (when (< (match-beginning 0) (length company-common))
- (add-text-properties (match-beginning 0) (length company-common)
- '(face company-tooltip-common-selection)
- line)))
- (add-text-properties 0 width '(face company-tooltip-selection
- mouse-face company-tooltip-selection)
- line)
- (add-text-properties 0 (length company-common)
- '(face company-tooltip-common-selection
- mouse-face company-tooltip-selection)
- line)))
+ (let* ((margin company-tooltip-margin)
+ (common (+ (or (company-call-backend 'common-part line)
+ (length company-common)) margin)))
+ (setq line (concat (company-space-string company-tooltip-margin)
+ (company-safe-substring
+ line 0 (+ width company-tooltip-margin)))
+ width (+ width (* 2 margin)))
+
+ (add-text-properties 0 width '(face company-tooltip
+ mouse-face company-tooltip-mouse)
+ line)
+ (add-text-properties margin common
+ '(face company-tooltip-common
+ mouse-face company-tooltip-mouse)
+ line)
+ (when selected
+ (if (and company-search-string
+ (string-match (regexp-quote company-search-string) line
+ (length company-prefix)))
+ (progn
+ (add-text-properties (match-beginning 0) (match-end 0)
+ '(face company-tooltip-selection)
+ line)
+ (when (< (match-beginning 0) common)
+ (add-text-properties (match-beginning 0) common
+ '(face company-tooltip-common-selection)
+ line)))
+ (add-text-properties 0 width '(face company-tooltip-selection
+ mouse-face company-tooltip-selection)
+ line)
+ (add-text-properties margin common
+ '(face company-tooltip-common-selection
+ mouse-face company-tooltip-selection)
+ line))))
line)
;;; replace
(let (lines)
(while (and (= 1 (vertical-motion 1))
(<= (point) end))
- (push (buffer-substring beg (min end (1- (point)))) lines)
+ (let ((bound (min end (1- (point)))))
+ ;; A visual line can contain several physical lines (e.g. with outline's
+ ;; folding overlay). Take only the first one.
+ (push (buffer-substring beg
+ (save-excursion
+ (goto-char beg)
+ (re-search-forward "$" bound 'move)
+ (point)))
+ lines))
(setq beg (point)))
(unless (eq beg end)
(push (buffer-substring beg end) lines))
(nreverse lines)))
-(defsubst company-modify-line (old new offset)
+(defun company-modify-line (old new offset)
(concat (company-safe-substring old 0 offset)
new
(company-safe-substring old (+ offset (length new)))))
(length lst)))
(defun company--replacement-string (lines old column nl &optional align-top)
+ (decf column company-tooltip-margin)
- (let ((width (length (car lines))))
- (when (> width (- (window-width) column))
- (setq column (max 0 (- (window-width) width)))))
+ (let ((width (length (car lines)))
+ (remaining-cols (- (+ (company--window-width) (window-hscroll))
+ column)))
+ (when (> width remaining-cols)
+ (decf column (- width remaining-cols))))
- (let (new)
+ (let ((offset (and (< column 0) (- column)))
+ new)
+ (when offset
+ (setq column 0))
(when align-top
;; untouched lines first
- (dotimes (i (- (length old) (length lines)))
+ (dotimes (_ (- (length old) (length lines)))
(push (pop old) new)))
;; length into old lines.
(while old
- (push (company-modify-line (pop old) (pop lines) column) new))
+ (push (company-modify-line (pop old)
+ (company--offset-line (pop lines) offset)
+ column) new))
;; Append whole new lines.
(while lines
- (push (concat (company-space-string column) (pop lines)) new))
+ (push (concat (company-space-string column)
+ (company--offset-line (pop lines) offset))
+ new))
(let ((str (concat (when nl "\n")
(mapconcat 'identity (nreverse new) "\n")
(font-lock-append-text-property 0 (length str) 'face 'default str)
str)))
+(defun company--offset-line (line offset)
+ (if (and offset line)
+ (substring line offset)
+ line))
+
(defun company--create-lines (selection limit)
(let ((len company-candidates-length)
(numbered 99999)
+ (window-width (company--window-width))
lines
width
lines-copy
len (min limit len)
lines-copy lines)
- (dotimes (i len)
- (setq width (max (length (pop lines-copy)) width)))
- (setq width (min width (window-width)))
+ (decf window-width (* 2 company-tooltip-margin))
+ (dotimes (_ len)
+ (setq width (max (length (pop lines-copy)) width)))
+ (setq width (min window-width
+ (if company-show-numbers
+ (+ 2 width)
+ width)))
(setq lines-copy lines)
;; number can make tooltip too long
(setq numbered company-tooltip-offset))
(when previous
- (push (propertize (company-safe-substring previous 0 width)
- 'face 'company-tooltip)
- new))
+ (push (company--position-line previous width) new))
(dotimes (i len)
(push (company-fill-propertize
new))
(when remainder
- (push (propertize (company-safe-substring remainder 0 width)
- 'face 'company-tooltip)
- new))
+ (push (company--position-line remainder width) new))
(setq lines (nreverse new))))
+(defun company--position-line (text width)
+ (propertize (concat (company-space-string company-tooltip-margin)
+ (company-safe-substring text 0 width)
+ (company-space-string company-tooltip-margin))
+ 'face 'company-tooltip))
+
;; show
(defsubst company--window-inner-height ()
- (let ((edges (window-inside-edges (selected-window))))
+ (let ((edges (window-inside-edges)))
(- (nth 3 edges) (nth 1 edges))))
-(defsubst company--pseudo-tooltip-height ()
+(defsubst company--window-width ()
+ (- (window-width)
+ (cond
+ ((display-graphic-p) 0)
+ ;; Account for the line continuation column.
+ ((version< "24.3.1" emacs-version) 1)
+ ;; Emacs 24.3 and earlier included margins
+ ;; in window-width when in TTY.
+ (t (1+ (let ((margins (window-margins)))
+ (+ (or (car margins) 0)
+ (or (cdr margins) 0))))))))
+
+(defun 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))
(company-pseudo-tooltip-hide)
(save-excursion
- (move-to-column 0)
-
(let* ((height (company--pseudo-tooltip-height))
above)
(move-to-window-line (+ row (abs height)))
(point)))
(ov (make-overlay beg end))
- (args (list (mapcar 'company-untabify
+ (args (list (mapcar 'company-plainify
(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))
+
+ (let ((lines (company--create-lines selection (abs height))))
+ (overlay-put ov 'company-after
+ (apply 'company--replacement-string lines args))
+ (overlay-put ov 'company-width (string-width (car lines))))
(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)))
- (when col-row
- (company-pseudo-tooltip-show (1+ (cdr col-row)) (car col-row)
- company-selection))))
-
-(defun company-pseudo-tooltip-edit (lines selection)
- (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
+ (let ((row (company--row pos))
+ (col (company--column pos)))
+ (company-pseudo-tooltip-show (1+ row) col company-selection)))
+
+(defun company-pseudo-tooltip-edit (selection)
+ (let ((height (overlay-get company-pseudo-tooltip-overlay 'company-height)))
+ (overlay-put company-pseudo-tooltip-overlay 'company-after
(apply 'company--replacement-string
(company--create-lines selection (abs height))
(overlay-get company-pseudo-tooltip-overlay
(defun company-pseudo-tooltip-hide-temporarily ()
(when (overlayp company-pseudo-tooltip-overlay)
(overlay-put company-pseudo-tooltip-overlay 'invisible nil)
- (overlay-put company-pseudo-tooltip-overlay 'before-string nil)))
+ (overlay-put company-pseudo-tooltip-overlay 'line-prefix nil)
+ (overlay-put company-pseudo-tooltip-overlay 'after-string nil)))
(defun company-pseudo-tooltip-unhide ()
(when company-pseudo-tooltip-overlay
(overlay-put company-pseudo-tooltip-overlay 'invisible t)
- (overlay-put company-pseudo-tooltip-overlay 'before-string
- (overlay-get company-pseudo-tooltip-overlay 'company-before))
+ ;; Beat outline's folding overlays, at least.
+ (overlay-put company-pseudo-tooltip-overlay 'priority 1)
+ ;; No (extra) prefix for the first line.
+ (overlay-put company-pseudo-tooltip-overlay 'line-prefix "")
+ (overlay-put company-pseudo-tooltip-overlay 'after-string
+ (overlay-get company-pseudo-tooltip-overlay 'company-after))
(overlay-put company-pseudo-tooltip-overlay 'window (selected-window))))
(defun company-pseudo-tooltip-guard ()
(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)))))
+ (company-pseudo-tooltip-edit company-selection)))))
(defun company-pseudo-tooltip-unless-just-one-frontend (command)
"`company-pseudo-tooltip-frontend', but not shown for single candidates."
(unless (and (eq command 'post-command)
- (not (cdr company-candidates)))
+ (company--show-inline-p))
(company-pseudo-tooltip-frontend command)))
;;; overlay ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun company-preview-if-just-one-frontend (command)
"`company-preview-frontend', but only shown for single candidates."
- (unless (and (eq command 'post-command)
- (cdr company-candidates))
+ (when (or (not (eq command 'post-command))
+ (company--show-inline-p))
(company-preview-frontend command)))
+(defun company--show-inline-p ()
+ (and (not (cdr company-candidates))
+ company-common
+ (string-prefix-p company-prefix company-common
+ (company-call-backend 'ignore-case))))
+
;;; echo ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defvar company-echo-last-msg nil)
(message "%s" company-echo-last-msg)
(message ""))))
-(defsubst company-echo-show-soon (&optional getter)
+(defun company-echo-show-soon (&optional getter)
(when company-echo-timer
(cancel-timer company-echo-timer))
(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)))