text-modes / desktop-entry-mode.el

;;; desktop-entry-mode.el --- desktop entry editing

;; Copyright (C) 2003, Ville Skyttä, <scop at>

;; Author:   Ville Skyttä, <scop at>
;; Keywords: unix, desktop entry

;; This file is part of XEmacs.

;; XEmacs 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 2, or (at your option)
;; any later version.

;; XEmacs is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with XEmacs; see the file COPYING.  If not, write to the Free
;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
;; 02111-1307, USA.

;;; Commentary:

;; This mode provides basic functionality, eg. syntax highlighting and
;; validation for desktop entry files.
;; For more information about desktop entry files, see

;;; Code:

(defconst desktop-entry-mode-version "0.92")

(defgroup desktop-entry nil
  "Support for editing desktop entry files."
  :group 'languages)

(defcustom desktop-entry-validate-command "desktop-file-validate"
  "*Command for validating desktop entry files."
  :type 'string
  :group 'desktop-entry)

(defgroup desktop-entry-faces nil
  "Font lock faces for `desktop-entry-mode'."
  :prefix "desktop-entry-"
  :group 'desktop-entry
  :group 'faces)

(defface desktop-entry-group-header-face
  '((((class color) (background light)) (:foreground "mediumblue" :bold t))
    (((class color) (background dark)) (:foreground "lightblue" :bold t))
    (t (:bold t)))
  "*Face for highlighting desktop entry group headers."
  :group 'desktop-entry-faces)

(defface desktop-entry-value-face
  '((((class color) (background light)) (:foreground "darkgreen"))
    (((class color) (background dark)) (:foreground "lightgreen"))
  "*Face for highlighting desktop entry values."
  :group 'desktop-entry-faces)

(defface desktop-entry-locale-face
  '((((class color) (background light)) (:foreground "dimgray"))
    (((class color) (background dark)) (:foreground "lightgray"))
  "*Face for highlighting desktop entry locales."
  :group 'desktop-entry-faces)

(defconst desktop-entry-keywords
    (require 'regexp-opt)
       ) 'words))
  "Expression for matching desktop entry keys.")

(defconst desktop-entry-font-lock-keywords
   (cons "^\\s-*#.*$" '(0 'font-lock-comment-face))
   (cons desktop-entry-keywords '(0 'font-lock-keyword-face))
   (cons "^\\[\\(Desktop \\(Entry\\|Action [a-zA-Z]+\\)\\)\\]"
         '(1 'desktop-entry-group-header-face))
   (cons "^[A-Za-z0-9-]+?\\s-*=\\s-*\\(.*\\)"
         '(1 'desktop-entry-value-face))
   (cons "^[A-Za-z0-9-]+?\\[\\(.*\\)\\]\\s-*=\\s-*\\(.*\\)"
         '((1 'desktop-entry-locale-face)
           (2 'desktop-entry-value-face)))
  "Highlighting rules for `desktop-entry-mode' buffers.")

(defun desktop-entry-mode ()
  "Major mode for editing desktop entry files.
See <> for more

Turning on desktop entry mode calls the value of the variable
`desktop-entry-mode-hook' with no args, if that value is non-nil."
  (set (make-local-variable 'imenu-generic-expression)
       '((nil "^\\s-*\\(.*\\)\\s-*=" 1)))
  (set (make-local-variable 'compile-command)
       (concat desktop-entry-validate-command " " buffer-file-name))
  (set (make-local-variable 'compilation-buffer-name-function)
       (lambda (x) (concat "*desktop-file-validate "
                           (file-name-nondirectory buffer-file-name) "*")))
  (set (make-local-variable 'comment-start) "# ")
  (set (make-local-variable 'comment-end) "")
  (set (make-local-variable 'comment-start-skip) "#+ *")
  (setq major-mode 'desktop-entry-mode mode-name "Desktop Entry")
  (run-hooks 'desktop-entry-mode-hook))

(defun desktop-entry-validate ()
  "Validate desktop entry in the current buffer."
  (require 'compile)
  (compile compile-command))

;;;###autoload(add-to-list 'auto-mode-alist '("\\.desktop\\(\\.in\\)?$" . desktop-entry-mode))

(provide 'desktop-entry-mode)

;;; desktop-entry-mode.el ends here
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