| 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:wglass@apache.org">Will Glass-Husain</a> |
| * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a> |
| * @version $Id$ |
| */ |
| 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(); |
| } |
| } |