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Diffstat (limited to 'emacs.d/elpa/company-20201014.2251/company-dabbrev.el')
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diff --git a/emacs.d/elpa/company-20201014.2251/company-dabbrev.el b/emacs.d/elpa/company-20201014.2251/company-dabbrev.el new file mode 100644 index 0000000..5d2f318 --- /dev/null +++ b/emacs.d/elpa/company-20201014.2251/company-dabbrev.el @@ -0,0 +1,206 @@ +;;; company-dabbrev.el --- dabbrev-like company-mode completion backend -*- lexical-binding: t -*- + +;; Copyright (C) 2009, 2011, 2014, 2015, 2016 Free Software Foundation, Inc. + +;; Author: Nikolaj Schumacher + +;; 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. + + +;;; Commentary: +;; + +;;; Code: + +(require 'company) +(require 'cl-lib) + +(defgroup company-dabbrev nil + "dabbrev-like completion backend." + :group 'company) + +(defcustom company-dabbrev-other-buffers 'all + "Determines whether `company-dabbrev' should search other buffers. +If `all', search all other buffers, except the ignored ones. If t, search +buffers with the same major mode. See also `company-dabbrev-time-limit'." + :type '(choice (const :tag "Off" nil) + (const :tag "Same major mode" t) + (const :tag "All" all))) + +(defcustom company-dabbrev-ignore-buffers "\\`[ *]" + "Regexp matching the names of buffers to ignore. +Or a function that returns non-nil for such buffers." + :type '(choice (regexp :tag "Regexp") + (function :tag "Predicate")) + :package-version '(company . "0.9.0")) + +(defcustom company-dabbrev-time-limit .1 + "Determines how many seconds `company-dabbrev' should look for matches." + :type '(choice (const :tag "Off" nil) + (number :tag "Seconds"))) + +(defcustom company-dabbrev-char-regexp "\\sw" + "A regular expression matching the characters `company-dabbrev' looks for." + :type 'regexp) + +(defcustom company-dabbrev-ignore-case 'keep-prefix + "Non-nil to ignore case when collecting completion candidates. +When it's `keep-prefix', the text before point will remain unchanged after +candidate is inserted, even some of its characters have different case." + :type '(choice + (const :tag "Don't ignore case" nil) + (const :tag "Ignore case" t) + (const :tag "Keep case before point" keep-prefix))) + +(defcustom company-dabbrev-downcase 'case-replace + "Whether to downcase the returned candidates. + +The value of nil means keep them as-is. +`case-replace' means use the value of `case-replace'. +Any other value means downcase. + +If you set this value to nil, you may also want to set +`company-dabbrev-ignore-case' to any value other than `keep-prefix'." + :type '(choice + (const :tag "Keep as-is" nil) + (const :tag "Downcase" t) + (const :tag "Use case-replace" case-replace))) + +(defcustom company-dabbrev-minimum-length 4 + "The minimum length for the completion candidate to be included. +This variable affects both `company-dabbrev' and `company-dabbrev-code'." + :type 'integer + :package-version '(company . "0.8.3")) + +(defcustom company-dabbrev-ignore-invisible nil + "Non-nil to skip invisible text." + :type 'boolean + :package-version '(company . "0.9.0")) + +(defmacro company-dabbrev--time-limit-while (test start limit freq &rest body) + (declare (indent 3) (debug t)) + `(let ((company-time-limit-while-counter 0)) + (catch 'done + (while ,test + ,@body + (and ,limit + (= (cl-incf company-time-limit-while-counter) ,freq) + (setq company-time-limit-while-counter 0) + (> (float-time (time-since ,start)) ,limit) + (throw 'done 'company-time-out)))))) + +(defun company-dabbrev--make-regexp () + (concat "\\(?:" company-dabbrev-char-regexp "\\)+")) + +(defun company-dabbrev--search-buffer (regexp pos symbols start limit + ignore-comments) + (save-excursion + (cl-labels ((maybe-collect-match + () + (let ((match (match-string-no-properties 0))) + (when (and (>= (length match) company-dabbrev-minimum-length) + (not (and company-dabbrev-ignore-invisible + (invisible-p (match-beginning 0))))) + (push match symbols))))) + (goto-char (if pos (1- pos) (point-min))) + ;; Search before pos. + (let ((tmp-end (point))) + (company-dabbrev--time-limit-while (and (not (input-pending-p)) + (> tmp-end (point-min))) + start limit 1 + (ignore-errors + (forward-char -10000)) + (forward-line 0) + (save-excursion + ;; Before, we used backward search, but it matches non-greedily, and + ;; that forced us to use the "beginning/end of word" anchors in + ;; `company-dabbrev--make-regexp'. It's also about 2x slower. + (while (and (not (input-pending-p)) + (re-search-forward regexp tmp-end t)) + (if (and ignore-comments (save-match-data (company-in-string-or-comment))) + (re-search-forward "\\s>\\|\\s!\\|\\s\"" tmp-end t) + (maybe-collect-match)))) + (setq tmp-end (point)))) + (goto-char (or pos (point-min))) + ;; Search after pos. + (company-dabbrev--time-limit-while (and (not (input-pending-p)) + (re-search-forward regexp nil t)) + start limit 25 + (if (and ignore-comments (save-match-data (company-in-string-or-comment))) + (re-search-forward "\\s>\\|\\s!\\|\\s\"" nil t) + (maybe-collect-match))) + symbols))) + +(defun company-dabbrev--search (regexp &optional limit other-buffer-modes + ignore-comments) + (let* ((start (current-time)) + (symbols (company-dabbrev--search-buffer regexp (point) nil start limit + ignore-comments))) + (when other-buffer-modes + (cl-dolist (buffer (delq (current-buffer) (buffer-list))) + (unless (if (stringp company-dabbrev-ignore-buffers) + (string-match-p company-dabbrev-ignore-buffers + (buffer-name buffer)) + (funcall company-dabbrev-ignore-buffers buffer)) + (with-current-buffer buffer + (when (or (eq other-buffer-modes 'all) + (apply #'derived-mode-p other-buffer-modes)) + (setq symbols + (company-dabbrev--search-buffer regexp nil symbols start + limit ignore-comments))))) + (and limit + (> (float-time (time-since start)) limit) + (cl-return)))) + symbols)) + +(defun company-dabbrev--prefix () + ;; Not in the middle of a word. + (unless (looking-at company-dabbrev-char-regexp) + ;; Emacs can't do greedy backward-search. + (company-grab-line (format "\\(?:^\\| \\)[^ ]*?\\(\\(?:%s\\)*\\)" + company-dabbrev-char-regexp) + 1))) + +(defun company-dabbrev--filter (prefix candidates) + (let ((completion-ignore-case company-dabbrev-ignore-case)) + (all-completions prefix candidates))) + +;;;###autoload +(defun company-dabbrev (command &optional arg &rest ignored) + "dabbrev-like `company-mode' completion backend." + (interactive (list 'interactive)) + (cl-case command + (interactive (company-begin-backend 'company-dabbrev)) + (prefix (company-dabbrev--prefix)) + (candidates + (let* ((case-fold-search company-dabbrev-ignore-case) + (words (company-dabbrev--search (company-dabbrev--make-regexp) + company-dabbrev-time-limit + (pcase company-dabbrev-other-buffers + (`t (list major-mode)) + (`all `all)))) + (downcase-p (if (eq company-dabbrev-downcase 'case-replace) + case-replace + company-dabbrev-downcase))) + (setq words (company-dabbrev--filter arg words)) + (if downcase-p + (mapcar 'downcase words) + words))) + (ignore-case company-dabbrev-ignore-case) + (duplicates t))) + +(provide 'company-dabbrev) +;;; company-dabbrev.el ends here |