/*******************************************************************************
* 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.parser.markup.phrase;
import org.eclipse.mylyn.wikitext.parser.markup.PatternBasedElement;
import org.eclipse.mylyn.wikitext.parser.markup.PatternBasedElementProcessor;
/**
* A phrase modifier that detects HTML and XML tags, but only those that are explicitly specified. The detected markup
* is passed through to the builder unescaped.
*
* @see LimitedHtmlStartTagPhraseModifier
* @author David Green
* @since 3.0
*/
public class LimitedHtmlStartTagPhraseModifier extends PatternBasedElement {
private final String pattern;
/**
* @param elementNames
* the element names to be detected.
*/
public LimitedHtmlStartTagPhraseModifier(String... elementNames) {
StringBuilder buf = new StringBuilder();
buf.append("(<"); //$NON-NLS-1$
buf.append("(?:"); //$NON-NLS-1$
int index = 0;
for (String elementName : elementNames) {
if (index++ > 0) {
buf.append("|"); //$NON-NLS-1$
}
buf.append(elementName);
}
buf.append(")(?:\\s*[a-zA-Z][a-zA-Z0-9_:-]*=\"[^\"]*\")*\\s*/?>)"); //$NON-NLS-1$
pattern = buf.toString();
}
@Override
protected String getPattern(int groupOffset) {
return pattern;
}
@Override
protected PatternBasedElementProcessor newProcessor() {
return new LiteralPhraseModifierProcessor(false);
}
@Override
protected int getPatternGroupCount() {
return 1;
}
}