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/*******************************************************************************
* Copyright (c) 2012 Stefan Seelmann and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Stefan Seelmann - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.wikitext.markdown.core.block;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.mylyn.wikitext.core.parser.Attributes;
import org.eclipse.mylyn.wikitext.core.parser.markup.Block;
/**
* Markdown headings.
*
* @author Stefan Seelmann
*/
public class HeadingBlock extends Block {
private static final Pattern pattern = Pattern.compile("(#{1,6})\\s*(.+?)\\s*(?:#*\\s*)?"); //$NON-NLS-1$
private Matcher matcher;
@Override
public boolean canStart(String line, int lineOffset) {
if (lineOffset == 0) {
matcher = pattern.matcher(line);
return matcher.matches();
} else {
matcher = null;
return false;
}
}
@Override
public int processLineContent(String line, int offset) {
int level = matcher.group(1).length();
String text = matcher.group(2);
builder.beginHeading(level, new Attributes());
builder.characters(text);
builder.endHeading();
setClosed(true);
return -1;
}
}
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