code.delx.au - gnu-emacs-elpa/blob - company-dabbrev-code.el

   1 ;;; company-dabbrev-code.el --- a dabbrev-like company-mode back-end for code
   2 ;;
   3 ;; Copyright (C) 2009 Nikolaj Schumacher
   4 ;;
   5 ;; This file is part of company 0.4.
   6 ;;
   7 ;; This program is free software; you can redistribute it and/or
   8 ;; modify it under the terms of the GNU General Public License
   9 ;; as published by the Free Software Foundation; either version 2
  10 ;; of the License, or (at your option) any later version.
  11 ;;
  12 ;; This program is distributed in the hope that it will be useful,
  13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 ;; GNU General Public License for more details.
  16 ;;
  17 ;; You should have received a copy of the GNU General Public License
  18 ;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 (require 'company)
  21 (require 'company-dabbrev)
  22 (eval-when-compile (require 'cl))
  23
  24 (defcustom company-dabbrev-code-modes
  25   '(asm-mode batch-file-mode c++-mode c-mode cperl-mode csharp-mode css-mode
  26     emacs-lisp-mode erlang-mode espresso-mode f90-mode fortran-mode
  27     haskell-mode java-mode javascript-mode jde-mode js2-mode lisp-mode
  28     lua-mode objc-mode perl-mode php-mode python-mode ruby-mode scheme-mode
  29     shell-script-mode)
  30   "*Modes that use `company-dabbrev-code'.
  31 In all these modes `company-dabbrev-code' will complete only symbols, not text
  32 in comments or strings.  In other modes `company-dabbrev-code' will pass control
  33 to other back-ends \(e.g. `company-dabbrev'\).
  34 Value t means complete in all modes."
  35   :group 'company
  36   :type '(choice (repeat (symbol :tag "Major mode"))
  37                  (const tag "All modes" t)))
  38
  39 (defcustom company-dabbrev-code-other-buffers t
  40   "*Determines whether `company-dabbrev-code' should search other buffers.
  41 If 'all, search all other buffers.  If t, search buffers with the same
  42 major-mode.
  43 See also `company-dabbrev-code-time-limit'."
  44   :group 'company
  45   :type '(choice (const :tag "Off" nil)
  46                  (const :tag "Same major mode" t)
  47                  (const :tag "All" all)))
  48
  49 (defcustom company-dabbrev-code-time-limit .5
  50   "*Determines how long `company-dabbrev-code' should look for matches."
  51   :group 'company
  52   :type '(choice (const :tag "Off" nil)
  53                  (number :tag "Seconds")))
  54
  55 (defsubst company-dabbrev-code--make-regexp (prefix)
  56   (concat "\\_<" (if (equal prefix "")
  57                      "\\([a-zA-Z]\\|\\s_\\)"
  58                    (regexp-quote prefix))
  59           "\\(\\sw\\|\\s_\\)*\\_>"))
  60
  61 ;;;###autoload
  62 (defun company-dabbrev-code (command &optional arg &rest ignored)
  63   "A dabbrev-like `company-mode' back-end for code.
  64 The back-end looks for all symbols in the current buffer that aren't in
  65 comments or strings."
  66   (interactive (list 'interactive))
  67   (case command
  68     ('interactive (company-begin-backend 'company-dabbrev-code))
  69     ('prefix (and (or (eq t company-dabbrev-code-modes)
  70                       (apply 'derived-mode-p company-dabbrev-code-modes))
  71                   (not (company-in-string-or-comment))
  72                   (or (company-grab-symbol) 'stop)))
  73     ('candidates (let ((case-fold-search nil))
  74                    (company-dabbrev--search
  75                     (company-dabbrev-code--make-regexp arg)
  76                     company-dabbrev-code-time-limit
  77                     company-dabbrev-code-other-buffers t)))
  78     ('duplicates t)))
  79
  80 (provide 'company-dabbrev-code)
  81 ;;; company-dabbrev-code.el ends here