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/*******************************************************************************
* Copyright (c) 2005, 2006 BEA Systems 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:
* BEA Systems - initial implementation
*
*******************************************************************************/
package org.eclipse.jst.jsp.core.internal.java.jspel;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.eclipse.jface.text.Position;
import org.eclipse.jst.jsp.core.internal.JSPCoreMessages;
import org.eclipse.jst.jsp.core.jspel.ELProblem;
import org.eclipse.jst.jsp.core.jspel.IJSPELTranslator;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
public class JSPELTranslator implements IJSPELTranslator {
/**
* JSP Expression Language Parser.
*/
private JSPELParser elParser = null;
public List translateEL(String elText, String delim,
IStructuredDocumentRegion currentNode, int contentStart,
int contentLength, StringBuffer fUserELExpressions,
HashMap fUserELRanges, IStructuredDocument document) {
ArrayList elProblems = new ArrayList();
try {
synchronized(this) {
if(null == elParser) {
elParser = JSPELParser.createParser(elText);
} else {
elParser.ReInit(elText);
}
ASTExpression expression = elParser.Expression();
ELGenerator gen = new ELGenerator();
gen.generate(expression, currentNode, fUserELExpressions, fUserELRanges, document, currentNode, contentStart, contentLength);
}
} catch (ParseException e) {
Token curTok = e.currentToken;
int problemStartOffset;
int problemEndOffset;
Position pos = null;
problemStartOffset = contentStart + curTok.beginColumn;
problemEndOffset = contentStart + curTok.endColumn;
pos = new Position(problemStartOffset, problemEndOffset - problemStartOffset + 1);
elProblems.add(new ELProblem(pos, e.getLocalizedMessage()));
} catch (TokenMgrError te) {
Position pos = new Position(contentStart, contentLength);
elProblems.add(new ELProblem(pos, JSPCoreMessages.JSPEL_Token));
}
return elProblems;
}
}
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