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Jericho HTML Parser is a simple but powerful java library allowing analysis and manipulation of parts of an HTML document, including some common server-side tags, while reproducing verbatim any unrecognised or invalid HTML. It also provides high-level HTML form manipulation functions.

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// Jericho HTML Parser - Java based library for analysing and manipulating HTML
// Version 1.5
// Copyright (C) 2004 Martin Jericho
// http://jerichohtml.sourceforge.net/
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// http://www.gnu.org/copyleft/lesser.html
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

package au.id.jericho.lib.html;

import java.io.*;

/**
 * Implements an {@link IOutputSegment} whose content is a character constant.
 */
public final class CharOutputSegment implements IOutputSegment {
	private int begin;
	private int end;
	private char ch;

	/**
	 * Constructs a new CharOutputSegment with the specified begin and end character positions and the specified content.
	 * @param begin  the position in the {@link OutputDocument} where this OutputSegment begins.
	 * @param end  the position in the {@link OutputDocument} where this OutputSegment ends.
	 * @param ch  the character output of the new OutputSegment.
	 */
	public CharOutputSegment(int begin, int end, char ch) {
		this.begin=begin;
		this.end=end;
		this.ch=ch;
	}

	/**
	 * Constructs a new CharOutputSegment with the same span as the specified {@link Segment}.
	 * @param segment  a {@link Segment} defining the begin and end character positions of the new OutputSegment.
	 * @param ch  the character output of the new OutputSegment.
	 */
	public CharOutputSegment(Segment segment, char ch) {
		begin=segment.begin;
		end=segment.end;
		this.ch=ch;
	}

	/**
	 * Constructs a new CharOutputSegment which converts the specified {@link CharacterReference} to a normal character.
	 * @param characterReference  the character reference to convert.
	 */
	public CharOutputSegment(CharacterReference characterReference) {
		this(characterReference,characterReference.getChar());
	}

	public int getBegin() {
		return begin;
	}

	public int getEnd() {
		return end;
	}

	public void output(Writer writer) throws IOException {
		writer.write(ch);
	}

	public String toString() {
		return Character.toString(ch);
	}

	public String getDebugInfo() {
		return "("+begin+','+end+"):"+ch;
	}
}