| /******************************************************************************* |
| * 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; |
| } |
| } |