duplicate_line.bsh

用java 编写的源码开放的文本编辑器。有很多有用的特性

/*
 * Duplicate_Line.bsh - a BeanShell macro script for the
 * jEdit text editor - duplicates the cursor line.
 * Copyright (C) 2001 Francesc Roses
 * [e-mail]
 *
 * 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 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 the jEdit program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 *
 * $Id: Duplicate_Line.bsh,v 1.2 2001/11/06 15:04:21 jgellene Exp $
 *
 * Checked for jEdit 4.0 API
 *
 */

void duplicateLine()
{
	/*
	 * Guard for readonly files becuase Buffer.insert()
	 * ignores the flag
	 *
	 */
	if(buffer.isReadOnly())
	{
		Macros.error(view, "This file is read only.");
		return;
	}
	line = textArea.getCaretLine();
	offset = textArea.getLineEndOffset(line);
	// handle last line differently
	if(line == textArea.getLineCount() - 1)
	{
		text = "\n" + textArea.getLineText(line);
		--offset;
	}
	else
		text = textArea.getLineText(line) + "\n";
	buffer.insert(offset, text);
	textArea.goToNextLine(false);
}

duplicateLine();

/*

Macro index data (in DocBook format)

  <listitem>
    <para><filename>Duplicate_Line.bsh</filename></para>
	<abstract><para>
	  Duplicates the line on which the caret lies immediately
	  beneath it and moves the caret to the new line.
	</para></abstract>
  </listitem>

*/

// end Duplicate_Line.bsh