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|
;;; cjkspace.el --- provide a tilde character if you type a space.
;;; use this file with AUCTeX.
;; Copyright (C) 1994-2006 Werner Lemberg <wl@gnu.org>
;;
;; 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 2 of the License, 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 in doc/COPYING; if not, write to the Free
;; Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
;; MA 02110-1301 USA
;; This file is part of the CJK package Version 4.7.0 (17-Oct-2006)
;; Insert tilde characters instead of spaces for LaTeX CJK documents.
;; If `CJK-space-after-space' is non-nil, typing a space yields a space.
;; Typing two consecutive spaces yields a tilde. If `CJK-space-after-space'
;; is nil, the behaviour is reversed.
;;
;; You should put the following in your .emacs file (additionally to the
;; common AUCTeX adaptations):
;;
;; (autoload 'CJK-insert-space "cjkspace"
;; "Insert tildes appropriately in CJK document." t)
;; (defun my-LaTeX-mode-hook ()
;; "Key definitions for LaTeX mode."
;; (define-key LaTeX-mode-map " " 'CJK-insert-space)
;; )
;; (add-hook 'LaTeX-mode-hook 'my-LaTeX-mode-hook)
;;; Code:
(provide 'cjkspace)
(defvar CJK-space "~")
(defvar CJK-space-after-space nil
"*If non-nil, typing a space yields a space. Typing two consecutive
spaces yields a tilde. If nil the behaviour is reversed.")
(make-variable-buffer-local 'CJK-space-after-space)
;;;###autoload
(defun CJK-insert-space (arg)
"Insert tilde characters instead of spaces for LaTeX CJK documents.
If `CJK-space-after-space' is non-nil, typing a space yields a space.
Typing two consecutive spaces yields a tilde. If `CJK-space-after-space'
is nil, the behaviour is reversed.
With prefix argument, always inserts space characters."
(interactive "*P")
(if arg
(self-insert-command (prefix-numeric-value arg))
(TeX-update-style)
(if CJK-space-after-space
(insert (cond ((bobp)
?\ )
((not (= (preceding-char) ?\ ))
?\ )
((and (> (point) 2)
(save-excursion
(forward-char -2)
(looking-at (concat "[" CJK-space
(regexp-quote TeX-esc) "]"))))
?\ )
(t
(delete-backward-char 1)
CJK-space)))
(insert (cond ((bobp)
?\ )
((= (preceding-char) (string-to-char TeX-esc))
?\ )
((= (preceding-char) ?\ )
?\ )
((and (> (point) 2)
(save-excursion
(forward-char -2)
(looking-at (concat (regexp-quote TeX-esc)
CJK-space))))
CJK-space)
((= (preceding-char) (string-to-char CJK-space))
(delete-backward-char 1)
?\ )
(t
CJK-space))))))
;;; EOF
|
