;;; markchars.el --- Mark characters fitting certain characteristics
;;
;; Author: Lennart Borgman (lennart O borgman A gmail O com)
;; Created: 2010-03-22 Mon
;; Version:
;; Last-Updated:
;; URL:
;; Keywords:
;; Compatibility:
;;
;; Features that might be required by this library:
;;
;;   None
;;
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;;; Commentary:
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;;; Change log:
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;; This program 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 3, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING.  If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
;; Floor, Boston, MA 02110-1301, USA.
;;
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;;
;;; Code:

;; (re-search-forward "[[:nonascii:]]")
;; äåö

(defgroup markchars nil
  "Customization group for `markchars-mode'."
  :group 'convenience)

(defface markchars-face
  '((t (:underline "light blue")))
  "Face for `markchars-mode' char marking."
  :group 'markchars)

(defconst markchars-keywords
  `(
    ("[[:nonascii:]]"
     (0 (put-text-property (match-beginning 0) (match-end 0)
                           'face 'markchars-face)))
    ))

(define-minor-mode markchars-mode
  "Color up non-ascii chars."
  :group 'markchars
  (if markchars-mode
      (font-lock-add-keywords nil markchars-keywords)
    (font-lock-remove-keywords nil markchars-keywords))
  (font-lock-fontify-buffer))

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;;; markchars.el ends here