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

   1 ;;; company-ispell.el --- company-mode completion backend using Ispell
   2
   3 ;; Copyright (C) 2009-2011, 2013-2016  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
  23 ;;; Commentary:
  24 ;;
  25
  26 ;;; Code:
  27
  28 (require 'company)
  29 (require 'cl-lib)
  30 (require 'ispell)
  31
  32 (defgroup company-ispell nil
  33   "Completion backend using Ispell."
  34   :group 'company)
  35
  36 (defcustom company-ispell-dictionary nil
  37   "Dictionary to use for `company-ispell'.
  38 If nil, use `ispell-complete-word-dict'."
  39   :type '(choice (const :tag "default (nil)" nil)
  40                  (file :tag "dictionary" t)))
  41
  42 (defvar company-ispell-available 'unknown)
  43
  44 (defalias 'company-ispell--lookup-words
  45   (if (fboundp 'ispell-lookup-words)
  46       'ispell-lookup-words
  47     'lookup-words))
  48
  49 (defun company-ispell-available ()
  50   (when (eq company-ispell-available 'unknown)
  51     (condition-case err
  52         (progn
  53           (company-ispell--lookup-words "WHATEVER")
  54           (setq company-ispell-available t))
  55       (error
  56        (message "Company: ispell-look-command not found")
  57        (setq company-ispell-available nil))))
  58   company-ispell-available)
  59
  60 ;;;###autoload
  61 (defun company-ispell (command &optional arg &rest ignored)
  62   "`company-mode' completion backend using Ispell."
  63   (interactive (list 'interactive))
  64   (cl-case command
  65     (interactive (company-begin-backend 'company-ispell))
  66     (prefix (when (company-ispell-available)
  67               (company-grab-word)))
  68     (candidates
  69      (let ((words (company-ispell--lookup-words
  70                    arg
  71                    (or company-ispell-dictionary ispell-complete-word-dict)))
  72            (completion-ignore-case t))
  73        (if (string= arg "")
  74            ;; Small optimization.
  75            words
  76          ;; Work around issue #284.
  77          (all-completions arg words))))
  78     (sorted t)
  79     (ignore-case 'keep-prefix)))
  80
  81 (provide 'company-ispell)
  82 ;;; company-ispell.el ends here