org.sweble.wikitext.lazy.parser.LazyParserState Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of swc-parser-lazy Show documentation
A parser for MediaWiki's Wikitext.
There is a newer version: 3.1.9
/**
 * Copyright 2011 The Open Source Research Group,
 *                University of Erlangen-Nürnberg
 *
 * 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 org.sweble.wikitext.lazy.parser;

import java.util.regex.Pattern;

import org.sweble.wikitext.lazy.ParserConfigInterface;

import de.fau.cs.osr.ptk.common.EntityMap;
import de.fau.cs.osr.ptk.common.ParserState;
import de.fau.cs.osr.ptk.common.ast.AstNode;

public class LazyParserState
		extends
			ParserState
{
	private EntityMap entityMap = new EntityMap();
	
	private ParserConfigInterface config;
	
	private Pattern postfixPattern;
	
	private Pattern prefixPattern;
	
	private boolean autoCorrect;
	
	private boolean warningsEnabled;
	
	private boolean gatherRtData;
	
	// =========================================================================
	
	public LazyParserState()
	{
		super();
	}
	
	@Override
	protected LazyParserContext instantiateContext()
	{
		return new LazyParserContext();
	}
	
	// =========================================================================
	
	public EntityMap getEntityMap()
	{
		return entityMap;
	}
	
	public AstNode getEntity(int id)
	{
		return entityMap.getEntity(id);
	}
	
	// =========================================================================
	
	public ParserConfigInterface getConfig()
	{
		return config;
	}
	
	public void init(ParserConfigInterface config, EntityMap entityMap)
	{
		this.config = config;
		
		this.entityMap = entityMap;
		
		this.autoCorrect = config.isAutoCorrect();
		
		this.warningsEnabled = config.isWarningsEnabled();
		
		this.gatherRtData = config.isGatherRtData();
		
		this.prefixPattern = Pattern.compile(
				"(" + config.getInternalLinkPrefixPattern() + ")$");
		
		this.postfixPattern = Pattern.compile(
				config.getInternalLinkPostfixPattern());
	}
	
	// =========================================================================
	
	public boolean isAutoCorrect()
	{
		return autoCorrect;
	}
	
	public boolean isWarnignsEnabled()
	{
		return warningsEnabled;
	}
	
	public boolean isGatherRtData()
	{
		return gatherRtData;
	}
	
	// =========================================================================
	
	public Pattern getInternalLinkPrefixPattern()
	{
		return prefixPattern;
	}
	
	public Pattern getInternalLinkPostfixPattern()
	{
		return postfixPattern;
	}
	
	// =========================================================================
	
	public LinkBuilder getLinkBuilder()
	{
		return getTop().getLinkBuilder();
	}
	
	public void initLinkBuilder(String target)
	{
		getTop().initLinkBuilder(config, target);
	}
	
	// =========================================================================
	
	public ParserScopes getScope()
	{
		return getTop().getScope();
	}
	
	public void setScope(ParserScopes scope)
	{
		LazyParserContext c = getTop();
		c.setScope(scope);
		if (scope.isSticky())
			c.addStickingScope(scope);
	}
	
	public boolean accepts(ParserAtoms atom)
	{
		LazyParserContext c = getTop();
		if (c.getScope().accepts(atom))
		{
			int sticking = c.getStickingScopes();
			for (int i = 0; sticking != 0; ++i, sticking >>= 1)
			{
				if ((sticking & 1) != 0)
				{
					if (!ParserScopes.values()[i].accepts(atom))
						return false;
				}
			}
			return true;
		}
		return false;
	}
	
	public boolean inScope(ParserScopes scope)
	{
		LazyParserContext c = getTop();
		if (c.getScope() == scope)
		{
			return true;
		}
		else
		{
			int bit = 1 << scope.ordinal();
			return 0 != (c.getStickingScopes() & bit);
		}
	}
}