/*******************************************************************************
* Copyright (c) 2007, 2011 David Green 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:
* David Green - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.wikitext.textile.internal.block;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.mylyn.wikitext.parser.outline.OutlineItem;
import org.eclipse.mylyn.wikitext.parser.outline.OutlineParser;
import org.eclipse.mylyn.wikitext.textile.TextileLanguage;
/**
* @author David Green
*/
public class TableOfContentsBlock extends AbstractTableOfContentsBlock {
private static final String OPTION_MAX_LEVEL = "maxLevel";//$NON-NLS-1$
private static final String OPTION_STYLE = "style"; //$NON-NLS-1$
private static final String OPTION_CLASS = "class"; //$NON-NLS-1$
static final Pattern startPattern = Pattern.compile("\\s*\\{toc(?::([^\\}]+))?\\}\\s*"); //$NON-NLS-1$
private int blockLineNumber = 0;
private Matcher matcher;
@Override
public int processLineContent(String line, int offset) {
if (blockLineNumber++ > 0) {
setClosed(true);
return 0;
}
if (!getMarkupLanguage().isFilterGenerativeContents()) {
String options = matcher.group(1);
if (options != null) {
String[] optionPairs = options.split("\\s*\\|\\s*"); //$NON-NLS-1$
for (String optionPair : optionPairs) {
String[] keyValue = optionPair.split("\\s*=\\s*"); //$NON-NLS-1$
if (keyValue.length == 2) {
String key = keyValue[0].trim();
String value = keyValue[1].trim();
if (key.equals(OPTION_STYLE)) {
setStyle(value);
} else if (key.equals(OPTION_MAX_LEVEL)) {
try {
maxLevel = Integer.parseInt(value);
} catch (NumberFormatException e) {
}
} else if (key.equals(OPTION_CLASS)) {
setCssClass(value);
}
}
}
}
OutlineParser outlineParser = new OutlineParser(new TextileLanguage());
OutlineItem rootItem = outlineParser.parse(state.getMarkupContent());
emitToc(rootItem);
}
return -1;
}
@Override
public boolean canStart(String line, int lineOffset) {
if (lineOffset == 0 && !getMarkupLanguage().isFilterGenerativeContents()) {
matcher = startPattern.matcher(line);
blockLineNumber = 0;
return matcher.matches();
} else {
matcher = null;
return false;
}
}
}