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Annotation of GNUtools/emacs/lisp/underline.el, revision 1.1.1.1

1.1       root        1: ;; Insert or remove underlining (done by overstriking) in Emacs.
                      2: ;; Copyright (C) 1985 Free Software Foundation, Inc.
                      3: 
                      4: ;; This file is part of GNU Emacs.
                      5: 
                      6: ;; GNU Emacs is free software; you can redistribute it and/or modify
                      7: ;; it under the terms of the GNU General Public License as published by
                      8: ;; the Free Software Foundation; either version 1, or (at your option)
                      9: ;; any later version.
                     10: 
                     11: ;; GNU Emacs is distributed in the hope that it will be useful,
                     12: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
                     13: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     14: ;; GNU General Public License for more details.
                     15: 
                     16: ;; You should have received a copy of the GNU General Public License
                     17: ;; along with GNU Emacs; see the file COPYING.  If not, write to
                     18: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
                     19: 
                     20: 
                     21: (defun underline-region (start end)
                     22:   "Underline all nonblank characters in the region.
                     23: Works by overstriking underscores.
                     24: Called from program, takes two arguments START and END
                     25: which specify the range to operate on."
                     26:   (interactive "r")
                     27:   (save-excursion
                     28:    (let ((end1 (make-marker)))
                     29:      (move-marker end1 (max start end))
                     30:      (goto-char (min start end))
                     31:      (while (< (point) end1)
                     32:        (or (looking-at "[_\^@- ]")
                     33:           (insert "_"))
                     34:        (forward-char 1)))))
                     35: 
                     36: (defun ununderline-region (start end)
                     37:   "Remove all underlining (overstruck underscores) in the region.
                     38: Called from program, takes two arguments START and END
                     39: which specify the range to operate on."
                     40:   (interactive "r")
                     41:   (save-excursion
                     42:    (let ((end1 (make-marker)))
                     43:      (move-marker end1 (max start end))
                     44:      (goto-char (min start end))
                     45:      (while (search-forward "_" end1 t)
                     46:        (delete-char -2)))))

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