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- ;;; misc.el --- basic editing commands for Emacs
-
- ;; Copyright (C) 1989 Free Software Foundation, Inc.
-
- ;; Maintainer: FSF
-
- ;; 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., 59 Temple Place - Suite 330,
- ;; Boston, MA 02111-1307, USA.
-
- ;;; Code:
-
- (defun copy-from-above-command (&optional arg)
- "Copy characters from previous nonblank line, starting just above point.
- Copy ARG characters, but not past the end of that line.
- If no argument given, copy the entire rest of the line.
- The characters copied are inserted in the buffer before point."
- (interactive "P")
- (let ((cc (current-column))
- n
- (string ""))
- (save-excursion
- (beginning-of-line)
- (backward-char 1)
- (skip-chars-backward "\ \t\n")
- (move-to-column cc)
- ;; Default is enough to copy the whole rest of the line.
- (setq n (if arg (prefix-numeric-value arg) (point-max)))
- ;; If current column winds up in middle of a tab,
- ;; copy appropriate number of "virtual" space chars.
- (if (< cc (current-column))
- (if (= (preceding-char) ?\t)
- (progn
- (setq string (make-string (min n (- (current-column) cc)) ?\ ))
- (setq n (- n (min n (- (current-column) cc)))))
- ;; In middle of ctl char => copy that whole char.
- (backward-char 1)))
- (setq string (concat string
- (buffer-substring
- (point)
- (min (save-excursion (end-of-line) (point))
- (+ n (point)))))))
- (insert string)))
-
- ;;; misc.el ends here
-