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Diffstat (limited to 'elpa/company-20220425.1145/company-etags.el')
-rw-r--r-- | elpa/company-20220425.1145/company-etags.el | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/elpa/company-20220425.1145/company-etags.el b/elpa/company-20220425.1145/company-etags.el new file mode 100644 index 0000000..0bd093a --- /dev/null +++ b/elpa/company-20220425.1145/company-etags.el @@ -0,0 +1,108 @@ +;;; company-etags.el --- company-mode completion backend for etags + +;; Copyright (C) 2009-2011, 2013-2015, 2018-2019 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 <https://www.gnu.org/licenses/>. + + +;;; Commentary: +;; + +;;; Code: + +(require 'company) +(require 'cl-lib) +(require 'etags) + +(defgroup company-etags nil + "Completion backend for etags." + :group 'company) + +(defcustom company-etags-use-main-table-list t + "Always search `tags-table-list' if set. +If this is disabled, `company-etags' will try to find the one table for each +buffer automatically." + :type '(choice (const :tag "off" nil) + (const :tag "on" t))) + +(defcustom company-etags-ignore-case nil + "Non-nil to ignore case in completion candidates." + :type 'boolean + :package-version '(company . "0.7.3")) + +(defcustom company-etags-everywhere nil + "Non-nil to offer completions in comments and strings. +Set it to t or to a list of major modes." + :type '(choice (const :tag "Off" nil) + (const :tag "Any supported mode" t) + (repeat :tag "Some major modes" + (symbol :tag "Major mode"))) + :package-version '(company . "0.9.0")) + +(defvar company-etags-modes '(prog-mode c-mode objc-mode c++-mode java-mode + jde-mode pascal-mode perl-mode python-mode)) + +(defvar-local company-etags-buffer-table 'unknown) + +(defun company-etags-find-table () + (let ((file (expand-file-name + "TAGS" + (locate-dominating-file (or buffer-file-name + default-directory) + "TAGS")))) + (when (and file (file-regular-p file)) + (list file)))) + +(defun company-etags-buffer-table () + (or (and company-etags-use-main-table-list tags-table-list) + (if (eq company-etags-buffer-table 'unknown) + (setq company-etags-buffer-table (company-etags-find-table)) + company-etags-buffer-table))) + +(defun company-etags--candidates (prefix) + (let ((tags-table-list (company-etags-buffer-table)) + (tags-file-name tags-file-name) + (completion-ignore-case company-etags-ignore-case)) + (and (or tags-file-name tags-table-list) + (fboundp 'tags-completion-table) + (save-excursion + (visit-tags-table-buffer) + (all-completions prefix (tags-completion-table)))))) + +;;;###autoload +(defun company-etags (command &optional arg &rest ignored) + "`company-mode' completion backend for etags." + (interactive (list 'interactive)) + (cl-case command + (interactive (company-begin-backend 'company-etags)) + (prefix (and (apply #'derived-mode-p company-etags-modes) + (or (eq t company-etags-everywhere) + (apply #'derived-mode-p company-etags-everywhere) + (not (company-in-string-or-comment))) + (company-etags-buffer-table) + (or (company-grab-symbol) 'stop))) + (candidates (company-etags--candidates arg)) + (location (let ((tags-table-list (company-etags-buffer-table))) + (when (fboundp 'find-tag-noselect) + (save-excursion + (let ((buffer (find-tag-noselect arg))) + (cons buffer (with-current-buffer buffer (point)))))))) + (ignore-case company-etags-ignore-case))) + +(provide 'company-etags) +;;; company-etags.el ends here |