/*******************************************************************************
 * Copyright (c) 2006 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *     
 *******************************************************************************/
package org.eclipse.wst.jsdt.web.css.core.internal.parser;

import org.eclipse.wst.jsdt.web.css.core.internal.parserz.JSPedCSSRegionContexts;
import org.eclipse.wst.css.core.internal.parser.CSSRegionUtil;
import org.eclipse.wst.css.core.internal.parser.CSSSourceParser;
import org.eclipse.wst.css.core.internal.parser.ICSSTokenizer;
import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts;
import org.eclipse.wst.sse.core.internal.ltk.parser.RegionParser;

public class JSPedCSSSourceParser extends CSSSourceParser {

	private JSPedCSSTokenizer fTokenizer;

	@Override
	protected boolean mustBeStart(String type, String docRegionType) {
		return ((type == JSPedCSSRegionContexts.CSS_JSP_COMMENT
				|| type == JSPedCSSRegionContexts.CSS_JSP_DIRECTIVE
				|| type == JSPedCSSRegionContexts.CSS_JSP_END
				|| type == CSSRegionContexts.CSS_DELIMITER
				|| type == CSSRegionContexts.CSS_LBRACE
				|| type == CSSRegionContexts.CSS_RBRACE
				|| type == CSSRegionContexts.CSS_IMPORT
				|| type == CSSRegionContexts.CSS_PAGE
				|| type == CSSRegionContexts.CSS_MEDIA
				|| type == CSSRegionContexts.CSS_FONT_FACE
				|| type == CSSRegionContexts.CSS_CHARSET
				|| type == CSSRegionContexts.CSS_ATKEYWORD
				|| type == CSSRegionContexts.CSS_DECLARATION_PROPERTY || type == CSSRegionContexts.CSS_DECLARATION_DELIMITER)
				|| (docRegionType == CSSRegionContexts.CSS_DECLARATION_PROPERTY && type == CSSRegionContexts.CSS_S) || (!CSSRegionUtil
				.isSelectorBegginingType(docRegionType) && (type == CSSRegionContexts.CSS_SELECTOR_ELEMENT_NAME
				|| type == CSSRegionContexts.CSS_SELECTOR_UNIVERSAL
				|| type == CSSRegionContexts.CSS_SELECTOR_PSEUDO
				|| type == CSSRegionContexts.CSS_SELECTOR_CLASS
				|| type == CSSRegionContexts.CSS_SELECTOR_ID || type == CSSRegionContexts.CSS_SELECTOR_ATTRIBUTE_START)));
	}

	@Override
	protected boolean mustBeEnd(String type) {
		return (type == JSPedCSSRegionContexts.CSS_JSP_COMMENT
				|| type == JSPedCSSRegionContexts.CSS_JSP_DIRECTIVE
				|| type == JSPedCSSRegionContexts.CSS_JSP_END
				|| type == CSSRegionContexts.CSS_DELIMITER
				|| type == CSSRegionContexts.CSS_LBRACE
				|| type == CSSRegionContexts.CSS_RBRACE || type == CSSRegionContexts.CSS_DECLARATION_DELIMITER);
	}

	@Override
	public ICSSTokenizer getTokenizer() {
		if (fTokenizer == null) {
			fTokenizer = new JSPedCSSTokenizer();
		}
		return fTokenizer;
	}

	@Override
	public RegionParser newInstance() {
		return new JSPedCSSSourceParser();
	}

}