1 /** 2 * ServingXML 3 * 4 * Copyright (C) 2006 Daniel Parker 5 * daniel.parker@servingxml.com 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 **/ 20 21 package com.servingxml.expr.substitution; 22 23 import java.nio.charset.Charset; 24 25 import com.servingxml.util.CharsetHelper; 26 import com.servingxml.util.ServingXmlException; 27 28 /** 29 * 30 * @author Daniel A. Parker 31 */ 32 33 public interface EscapeSubstitutionVariables { 34 public static final EscapeSubstitutionVariables DO_NOT_ESCAPE = new DoNotEscapeSubstitutionVariables(); 35 doEscape()36 boolean doEscape(); 37 getCharacter()38 char getCharacter(); 39 getEscapeSequence()40 String getEscapeSequence(); 41 mustEscape(char ch)42 boolean mustEscape(char ch); 43 escape(String s)44 String escape(String s); 45 escape(String input, StringBuilder output)46 void escape(String input, StringBuilder output); 47 48 public final static class DoNotEscapeSubstitutionVariables implements EscapeSubstitutionVariables { 49 private final char character = '\\'; 50 private final String escapeSequence = "\\"; 51 DoNotEscapeSubstitutionVariables()52 public DoNotEscapeSubstitutionVariables() { 53 } 54 doEscape()55 public boolean doEscape() { 56 return false; 57 } 58 getCharacter()59 public final char getCharacter() { 60 return character; 61 } 62 getEscapeSequence()63 public final String getEscapeSequence() { 64 return escapeSequence; 65 } 66 mustEscape(char ch)67 public final boolean mustEscape(char ch) { 68 return false; 69 } 70 escape(String s)71 public final String escape(String s) { 72 return s; 73 } 74 escape(String input, StringBuilder output)75 public final void escape(String input, StringBuilder output) { 76 } 77 escape(String input, int pos, StringBuilder output)78 private final void escape(String input, int pos, StringBuilder output) { 79 } 80 } 81 } 82 83