Mercurial > hg > xemacs-beta
diff lisp/prim/misc.el @ 0:376386a54a3c r19-14
Import from CVS: tag r19-14
author | cvs |
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date | Mon, 13 Aug 2007 08:45:50 +0200 |
parents | |
children | ac2d302a0011 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lisp/prim/misc.el Mon Aug 13 08:45:50 2007 +0200 @@ -0,0 +1,59 @@ +;;; misc.el --- miscellaneous functions for XEmacs + +;; Copyright (C) 1989 Free Software Foundation, Inc. + +;; Maintainer: FSF + +;; This file is part of XEmacs. + +;; XEmacs 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. + +;; XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free +;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + +;;; Synched up with: FSF 19.30. + +;;; 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