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99 lines
3.8 KiB
99 lines
3.8 KiB
;;; company-dabbrev-code.el --- dabbrev-like company-mode back-end for code
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;; Copyright (C) 2009, 2011 Free Software Foundation, Inc.
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;; Author: Nikolaj Schumacher
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; Code:
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(require 'company)
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(require 'company-dabbrev)
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(require 'cl-lib)
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(defgroup company-dabbrev-code nil
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"dabbrev-like completion back-end for code."
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:group 'company)
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(defcustom company-dabbrev-code-modes
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'(asm-mode batch-file-mode c++-mode c-mode cperl-mode csharp-mode css-mode
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emacs-lisp-mode erlang-mode f90-mode fortran-mode haskell-mode java-mode
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javascript-mode jde-mode js2-mode lisp-mode lua-mode objc-mode perl-mode
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php-mode prog-mode python-mode ruby-mode scheme-mode shell-script-mode)
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"Modes that use `company-dabbrev-code'.
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In all these modes `company-dabbrev-code' will complete only symbols, not text
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in comments or strings. In other modes `company-dabbrev-code' will pass control
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to other back-ends \(e.g. `company-dabbrev'\).
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Value t means complete in all modes."
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:type '(choice (repeat (symbol :tag "Major mode"))
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(const tag "All modes" t)))
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(defcustom company-dabbrev-code-other-buffers t
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"Determines whether `company-dabbrev-code' should search other buffers.
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If `all', search all other buffers. If t, search buffers with the same
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major mode.
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See also `company-dabbrev-code-time-limit'."
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:type '(choice (const :tag "Off" nil)
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(const :tag "Same major mode" t)
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(const :tag "All" all)))
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(defcustom company-dabbrev-code-time-limit .1
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"Determines how long `company-dabbrev-code' should look for matches."
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:type '(choice (const :tag "Off" nil)
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(number :tag "Seconds")))
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(defcustom company-dabbrev-code-everywhere nil
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"Non-nil to offer completions in comments and strings."
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:type 'boolean)
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(defcustom company-dabbrev-code-ignore-case nil
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"Non-nil to ignore case in completion candidates."
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:type 'boolean)
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(defsubst company-dabbrev-code--make-regexp (prefix)
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(concat "\\_<" (if (equal prefix "")
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"\\([a-zA-Z]\\|\\s_\\)"
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(regexp-quote prefix))
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"\\(\\sw\\|\\s_\\)*\\_>"))
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;;;###autoload
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(defun company-dabbrev-code (command &optional arg &rest ignored)
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"dabbrev-like `company-mode' back-end for code.
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The back-end looks for all symbols in the current buffer that aren't in
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comments or strings."
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(interactive (list 'interactive))
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(cl-case command
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(interactive (company-begin-backend 'company-dabbrev-code))
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(prefix (and (or (eq t company-dabbrev-code-modes)
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(apply 'derived-mode-p company-dabbrev-code-modes))
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(or company-dabbrev-code-everywhere
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(not (company-in-string-or-comment)))
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(or (company-grab-symbol) 'stop)))
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(candidates (let ((case-fold-search company-dabbrev-code-ignore-case))
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(company-dabbrev--search
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(company-dabbrev-code--make-regexp arg)
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company-dabbrev-code-time-limit
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company-dabbrev-code-other-buffers t)))
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(ignore-case company-dabbrev-code-ignore-case)
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(duplicates t)))
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(provide 'company-dabbrev-code)
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;;; company-dabbrev-code.el ends here
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