package org.apache.velocity.anakia;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/**
* This class is for escaping CDATA sections. The code was
* "borrowed" from the JDOM code. Also included is escaping
* the " -> " character and the conversion of newlines
* to the platform line separator.
*
* @author <a href="mailto:[email protected]">Will Glass-Husain</a>
* @author <a href="mailto:[email protected]">Jon S. Stevens</a>
* @version $Id: Escape.java 463298 2006-10-12 16:10:32Z henning $
*/
public class Escape
{
/**
*
*/
public static final String LINE_SEPARATOR = System.getProperty("line.separator");
/**
* Empty constructor
*/
public Escape()
{
// left blank on purpose
}
/**
* Do the escaping.
* @param st
* @return The escaped text.
*/
public static final String getText(String st)
{
StringBuffer buff = new StringBuffer();
char[] block = st.toCharArray();
String stEntity = null;
int i, last;
for (i=0, last=0; i < block.length; i++)
{
switch(block[i])
{
case '<' :
stEntity = "<";
break;
case '>' :
stEntity = ">";
break;
case '&' :
stEntity = "&";
break;
case '"' :
stEntity = """;
break;
case '\n' :
stEntity = LINE_SEPARATOR;
break;
default :
/* no-op */
break;
}
if (stEntity != null)
{
buff.append(block, last, i - last);
buff.append(stEntity);
stEntity = null;
last = i + 1;
}
}
if(last < block.length)
{
buff.append(block, last, i - last);
}
return buff.toString();
}
}
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