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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
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package com.sun.el.parser;

import javax.el.ELException;

import com.sun.el.lang.EvaluationContext;

/**
 * @author Jacob Hookom [[email protected]]
 * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: tcfujii $
 */
public final class AstString extends SimpleNode {
    public AstString(int id) {
        super(id);
    }

    private String string;

    public String getString() {
        if (this.string == null) {
            this.string = this.image.substring(1, this.image.length() - 1);
        }
        return this.string;
    }

    public Class getType(EvaluationContext ctx)
            throws ELException {
        return String.class;
    }

    public Object getValue(EvaluationContext ctx)
            throws ELException {
        return this.getString();
    }

    public void setImage(String image) {
        if (image.indexOf('\\') == -1) {
            this.image = image;
            return;
        }
        int size = image.length();
        StringBuffer buf = new StringBuffer(size);
        for (int i = 0; i < size; i++) {
            char c = image.charAt(i);
            if (c == '\\' && i + 1 < size) {
                char c1 = image.charAt(i + 1);
                if (c1 == '\\' || c1 == '"' || c1 == '\'' || c1 == '#'
                        || c1 == '$') {
                    c = c1;
                    i++;
                }
            }
            buf.append(c);
        }
        this.image = buf.toString();
    }
}