mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-17 10:06:13 +00:00
68 lines
2.2 KiB
EmacsLisp
68 lines
2.2 KiB
EmacsLisp
;;; underline.el --- insert/remove underlining (done by overstriking) in Emacs
|
|
|
|
;; Copyright (C) 1985, 2002, 2003, 2004, 2005,
|
|
;; 2006 Free Software Foundation, Inc.
|
|
|
|
;; Maintainer: FSF
|
|
;; Keywords: wp
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs 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.
|
|
|
|
;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
;; Boston, MA 02110-1301, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;; This package deals with the primitive form of underlining
|
|
;; consisting of prefixing each character with "_\^h". The entry
|
|
;; point `underline-region' performs such underlining on a region.
|
|
;; The entry point `ununderline-region' removes it.
|
|
|
|
;;; Code:
|
|
|
|
;;;###autoload
|
|
(defun underline-region (start end)
|
|
"Underline all nonblank characters in the region.
|
|
Works by overstriking underscores.
|
|
Called from program, takes two arguments START and END
|
|
which specify the range to operate on."
|
|
(interactive "*r")
|
|
(save-excursion
|
|
(let ((end1 (make-marker)))
|
|
(move-marker end1 (max start end))
|
|
(goto-char (min start end))
|
|
(while (< (point) end1)
|
|
(or (looking-at "[_\^@- ]")
|
|
(insert "_\b"))
|
|
(forward-char 1)))))
|
|
|
|
;;;###autoload
|
|
(defun ununderline-region (start end)
|
|
"Remove all underlining (overstruck underscores) in the region.
|
|
Called from program, takes two arguments START and END
|
|
which specify the range to operate on."
|
|
(interactive "*r")
|
|
(save-excursion
|
|
(let ((end1 (make-marker)))
|
|
(move-marker end1 (max start end))
|
|
(goto-char (min start end))
|
|
(while (re-search-forward "_\b\\|\b_" end1 t)
|
|
(delete-char -2)))))
|
|
|
|
(provide 'underline)
|
|
|
|
;;; arch-tag: e7b48582-c3ea-4386-987a-87415f3c372a
|
|
;;; underline.el ends here
|