;;
;; (defun company-my-backend (command &optional arg &rest ignored)
;; (pcase command
-;; (`prefix (when (looking-back "foo\\>")
-;; (match-string 0)))
+;; (`prefix (company-grab-symbol))
;; (`candidates (list "foobar" "foobaz" "foobarbaz"))
;; (`meta (format "This value is named %s" arg))))
;;
company-eclim company-semantic company-clang
company-xcode company-cmake
company-capf
+ company-files
(company-dabbrev-code company-gtags company-etags
company-keywords)
- company-oddmuse company-files company-dabbrev)
+ company-oddmuse company-dabbrev)
"The list of active backends (completion engines).
Only one backend is used at a time. The choice depends on the order of
text immediately before point. Returning nil from this command passes
control to the next backend. 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 backend may return a cons where car is the prefix
-and cdr is used instead of the actual prefix length in the comparison
-against `company-minimum-prefix-length'. It must be either number or t,
-and in the latter case the test automatically succeeds.
+Instead of a string, the backend may return a cons (PREFIX . LENGTH)
+where LENGTH is a number used in place of PREFIX's length when
+comparing against `company-minimum-prefix-length'. LENGTH can also
+be just t, and in the latter 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 match the prefix.
The return value of each command can also be a cons (:async . FETCHER)
where FETCHER is a function of one argument, CALLBACK. When the data
arrives, FETCHER must call CALLBACK and pass it the appropriate return
-value, as described above.
+value, as described above. That call must happen in the same buffer as
+where completion was initiated.
True asynchronous operation is only supported for command `candidates', and
only during idle completion. Other commands will block the user interface,
(const :tag "Sort by occurrence" (company-sort-by-occurrence))
(const :tag "Sort by backend importance"
(company-sort-by-backend-importance))
+ (const :tag "Prefer case sensitive prefix"
+ (company-sort-prefer-same-case-prefix))
(repeat :tag "User defined" (function))))
(defcustom company-completion-started-hook nil
If EXPRESSION is non-nil, return the match string for the respective
parenthesized expression in REGEXP.
Matching is limited to the current line."
- (company-grab regexp expression (point-at-bol)))
+ (let ((inhibit-field-text-motion t))
+ (company-grab regexp expression (point-at-bol))))
(defun company-grab-symbol ()
"If point is at the end of a symbol, return it.
(defun company-grab-symbol-cons (idle-begin-after-re &optional max-len)
"Return a string SYMBOL or a cons (SYMBOL . t).
-SYMBOL is as returned by `company-grab-symbol'. If the text before poit
+SYMBOL is as returned by `company-grab-symbol'. If the text before point
matches IDLE-BEGIN-AFTER-RE, return it wrapped in a cons."
(let ((symbol (company-grab-symbol)))
(when symbol
(defun company--group-lighter (candidate base)
(let ((backend (or (get-text-property 0 'company-backend candidate)
- (car company-backend))))
+ (cl-some (lambda (x) (and (not (keywordp x)) x))
+ company-backend))))
(when (and backend (symbolp backend))
(let ((name (replace-regexp-in-string "company-\\|-company" ""
(symbol-name backend))))
t))))
(defun company--fetch-candidates (prefix)
- (let ((c (if company--manual-action
- (company-call-backend 'candidates prefix)
- (company-call-backend-raw 'candidates prefix)))
- res)
+ (let* ((non-essential (not (company-explicit-action-p)))
+ (c (if company--manual-action
+ (company-call-backend 'candidates prefix)
+ (company-call-backend-raw 'candidates prefix)))
+ res)
(if (not (eq (car c) :async))
c
(let ((buf (current-buffer))
company-candidates-cache
(list (cons prefix
(company--preprocess-candidates candidates))))
- (company-idle-begin buf win tick pt)))))
+ (unwind-protect
+ (company-idle-begin buf win tick pt)
+ (unless company-candidates
+ (setq company-backend nil
+ company-candidates-cache nil)))))))
;; FIXME: Relying on the fact that the callers
;; will interpret nil as "do nothing" is shaky.
;; A throw-catch would be one possible improvement.
(progn (setq res 'done) nil)))))
(defun company--preprocess-candidates (candidates)
+ (cl-assert (cl-every #'stringp candidates))
(unless (company-call-backend 'sorted)
(setq candidates (sort candidates 'string<)))
(when (company-call-backend 'duplicates)
- (setq candidates (company--strip-duplicates candidates)))
+ (company--strip-duplicates candidates))
candidates)
(defun company--postprocess-candidates (candidates)
(company--transform-candidates candidates))
(defun company--strip-duplicates (candidates)
- (let* ((annos 'unk)
- (str (car candidates))
- (ref (cdr candidates))
- res str2 anno2)
- (while ref
- (setq str2 (pop ref))
- (if (not (equal str str2))
- (progn
- (push str res)
- (setq str str2)
- (setq annos 'unk))
- (setq anno2 (company-call-backend
- 'annotation str2))
- (cond
- ((null anno2)) ; Skip it.
- ((when (eq annos 'unk)
- (let ((ann1 (company-call-backend 'annotation str)))
- (if (null ann1)
- ;; No annotation on the earlier element, drop it.
- t
- (setq annos (list ann1))
- nil)))
- (setq annos (list anno2))
- (setq str str2))
- ((member anno2 annos)) ; Also skip.
- (t
- (push anno2 annos)
- (push str res) ; Maintain ordering.
- (setq str str2)))))
- (when str (push str res))
- (nreverse res)))
+ (let ((c2 candidates)
+ (annos 'unk))
+ (while c2
+ (setcdr c2
+ (let ((str (pop c2)))
+ (while (let ((str2 (car c2)))
+ (if (not (equal str str2))
+ (progn
+ (setq annos 'unk)
+ nil)
+ (when (eq annos 'unk)
+ (setq annos (list (company-call-backend
+ 'annotation str))))
+ (let ((anno2 (company-call-backend
+ 'annotation str2)))
+ (if (member anno2 annos)
+ t
+ (push anno2 annos)
+ nil))))
+ (pop c2))
+ c2)))))
(defun company--transform-candidates (candidates)
(let ((c candidates))
(let ((b1 (get-text-property 0 'company-backend c1)))
(or (not b1) (not (memq b1 low-priority)))))))))))
+(defun company-sort-prefer-same-case-prefix (candidates)
+ "Prefer CANDIDATES with the same case sensitive prefix.
+If a backend returns case insensitive matches, candidates with the an exact
+prefix match will be prioritized even if this changes the lexical order."
+ (cl-loop for candidate in candidates
+ if (string-prefix-p company-prefix candidate)
+ collect candidate into same-case
+ else collect candidate into other-case
+ finally return (append same-case other-case)))
+
(defun company-idle-begin (buf win tick pos)
(and (eq buf (current-buffer))
(eq win (selected-window))
(company-cancel))
(quit (company-cancel))))))
+;;;###autoload
(defun company-manual-begin ()
(interactive)
(company-assert-enabled)
(company-uninstall-map))
(defun company-post-command ()
- (when (null this-command)
+ (when (and company-candidates
+ (null this-command))
;; Happens when the user presses `C-g' while inside
;; `flyspell-post-command-hook', for example.
;; Or any other `post-command-hook' function that can call `sit-for',
(const :tag "Exact match" regexp-quote)
(const :tag "Words separated with spaces" company-search-words-regexp)
(const :tag "Words separated with spaces, in any order"
- company-search-words-in-any-order-regexp)))
+ company-search-words-in-any-order-regexp)
+ (const :tag "All characters in given order, with anything in between"
+ company-search-flex-regexp)))
(defvar-local company-search-string "")
permutations
"\\|")))
+(defun company-search-flex-regexp (input)
+ (if (zerop (length input))
+ ""
+ (concat (regexp-quote (string (aref input 0)))
+ (mapconcat (lambda (c)
+ (concat "[^" (string c) "]*"
+ (regexp-quote (string c))))
+ (substring input 1) ""))))
+
(defun company--permutations (lst)
(if (not lst)
'(nil)
(eq old-tick (buffer-chars-modified-tick)))
(company-complete-common))))))
+;;;###autoload
(defun company-complete ()
"Insert the common part of all candidates or the current selection.
The first time this is called, the common part is inserted, the second