code.delx.au - gnu-emacs-elpa/blob - packages/company-0.5/company-dabbrev-code.el

   1 ;;; company-dabbrev-code.el --- a dabbrev-like company-mode back-end for code
   2
   3 ;; Copyright (C) 2009 Free Software Foundation, Inc.
   4
   5 ;; Author: Nikolaj Schumacher
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software: you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation, either version 3 of the License, or
  12 ;; (at your option) any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  21
  22 ;;; Code:
  23
  24 (require 'company)
  25 (require 'company-dabbrev)
  26 (eval-when-compile (require 'cl))
  27
  28 (defcustom company-dabbrev-code-modes
  29   '(asm-mode batch-file-mode c++-mode c-mode cperl-mode csharp-mode css-mode
  30     emacs-lisp-mode erlang-mode espresso-mode f90-mode fortran-mode
  31     haskell-mode java-mode javascript-mode jde-mode js2-mode lisp-mode
  32     lua-mode objc-mode perl-mode php-mode python-mode ruby-mode scheme-mode
  33     shell-script-mode)
  34   "*Modes that use `company-dabbrev-code'.
  35 In all these modes `company-dabbrev-code' will complete only symbols, not text
  36 in comments or strings.  In other modes `company-dabbrev-code' will pass control
  37 to other back-ends \(e.g. `company-dabbrev'\).
  38 Value t means complete in all modes."
  39   :group 'company
  40   :type '(choice (repeat (symbol :tag "Major mode"))
  41                  (const tag "All modes" t)))
  42
  43 (defcustom company-dabbrev-code-other-buffers t
  44   "*Determines whether `company-dabbrev-code' should search other buffers.
  45 If 'all, search all other buffers.  If t, search buffers with the same
  46 major-mode.
  47 See also `company-dabbrev-code-time-limit'."
  48   :group 'company
  49   :type '(choice (const :tag "Off" nil)
  50                  (const :tag "Same major mode" t)
  51                  (const :tag "All" all)))
  52
  53 (defcustom company-dabbrev-code-time-limit .5
  54   "*Determines how long `company-dabbrev-code' should look for matches."
  55   :group 'company
  56   :type '(choice (const :tag "Off" nil)
  57                  (number :tag "Seconds")))
  58
  59 (defsubst company-dabbrev-code--make-regexp (prefix)
  60   (concat "\\_<" (if (equal prefix "")
  61                      "\\([a-zA-Z]\\|\\s_\\)"
  62                    (regexp-quote prefix))
  63           "\\(\\sw\\|\\s_\\)*\\_>"))
  64
  65 ;;;###autoload
  66 (defun company-dabbrev-code (command &optional arg &rest ignored)
  67   "A dabbrev-like `company-mode' back-end for code.
  68 The back-end looks for all symbols in the current buffer that aren't in
  69 comments or strings."
  70   (interactive (list 'interactive))
  71   (case command
  72     ('interactive (company-begin-backend 'company-dabbrev-code))
  73     ('prefix (and (or (eq t company-dabbrev-code-modes)
  74                       (apply 'derived-mode-p company-dabbrev-code-modes))
  75                   (not (company-in-string-or-comment))
  76                   (or (company-grab-symbol) 'stop)))
  77     ('candidates (let ((completion-ignore-case nil))
  78                    (company-dabbrev--search
  79                     (company-dabbrev-code--make-regexp arg)
  80                     company-dabbrev-code-time-limit
  81                     company-dabbrev-code-other-buffers t)))
  82     ('duplicates t)))
  83
  84 (provide 'company-dabbrev-code)
  85 ;;; company-dabbrev-code.el ends here