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JWKTL (Java Wiktionary Library) is a Java-based API that enables efficient and structured access to the information encoded in the English and the German Wiktionary edition, including sense definitions, part of speech tags, etymology, example sentences, translations, semantic relations and many other lexical information types.

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/*******************************************************************************
 * Copyright 2013
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universität Darmstadt
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package de.tudarmstadt.ukp.jwktl.parser.components;

import de.tudarmstadt.ukp.jwktl.parser.util.IBlockHandler;
import de.tudarmstadt.ukp.jwktl.parser.util.ParsingContext;
import de.tudarmstadt.ukp.jwktl.parser.util.StringUtils;

/**
 * Abstract parser component for processing article constituents. The handler
 * can be initialized with a set of fixed labels that denote the header of 
 * an article constituent that is to be parsed by this handler.
 * @author Christian M. Meyer
 * @author Lizhen Qu
 */
/**
 * Default implementation of the {@link IBlockHandler} interface that serves 
 * as a base class for parsing any article constituent.
 */
public abstract class BlockHandler implements IBlockHandler {

	protected String[] labels;

	/** Initializes the block handler for parsing all sections starting with 
	 *  one of the specified labels. */
	public BlockHandler(final String... labels) {
		this.labels = labels;
	}
	
	public boolean canHandle(String blockHeader) {
		blockHeader = StringUtils.strip(blockHeader, "{}=: ");
		for (String label : labels)
			if (label.equals(blockHeader))
				return true;
		
		return false;
	}

	public boolean processHead(final String text, final ParsingContext context) {
		return true;
	}
	
	public boolean processBody(final String textLine, final ParsingContext context) {
		return false;
	}

	public void fillContent(final ParsingContext context) {}
	
	protected String[] getLabels() {
		return labels;
	}
	
}