net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/StringLiteral.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v0.5
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v05.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  ******************************************************************************/
  11 package net.sourceforge.phpdt.internal.compiler.ast;
  12
  13 //import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
  14 //import net.sourceforge.phpdt.internal.compiler.codegen.CodeStream;
  15 //import net.sourceforge.phpdt.internal.compiler.impl.Constant;
  16 //import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  17 //import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
  18
  19 public class StringLiteral extends Literal {
  20         char[] source;
  21
  22         public StringLiteral(char[] token, int s, int e) {
  23     super(s,e);
  24                 source = token;
  25         }
  26
  27         public StringLiteral(int s, int e) {
  28     super(s,e);
  29         }
  30
  31         /**
  32          * source method comment.
  33          */
  34         public char[] source() {
  35                 return source;
  36         }
  37
  38   /**
  39    * Return the expression as String.
  40    * @return the expression
  41    */
  42         public String toStringExpression() {
  43                 // handle some special char.....
  44                 StringBuffer result = new StringBuffer("\""); //$NON-NLS-1$
  45                 for (int i = 0; i < source.length; i++) {
  46                         switch (source[i]) {
  47                                 case '\b' :
  48                                         result.append("\\b"); //$NON-NLS-1$
  49                                         break;
  50                                 case '\t' :
  51                                         result.append("\\t"); //$NON-NLS-1$
  52                                         break;
  53                                 case '\n' :
  54                                         result.append("\\n"); //$NON-NLS-1$
  55                                         break;
  56                                 case '\f' :
  57                                         result.append("\\f"); //$NON-NLS-1$
  58                                         break;
  59                                 case '\r' :
  60                                         result.append("\\r"); //$NON-NLS-1$
  61                                         break;
  62                                 case '\"' :
  63                                         result.append("\\\""); //$NON-NLS-1$
  64                                         break;
  65                                 case '\'' :
  66                                         result.append("\\'"); //$NON-NLS-1$
  67                                         break;
  68                                 case '\\' : //take care not to display the escape as a potential real char
  69                                         result.append("\\\\"); //$NON-NLS-1$
  70                                         break;
  71                                 default :
  72                                         result.append(source[i]);
  73                         }
  74                 }
  75                 result.append("\""); //$NON-NLS-1$
  76                 return result.toString();
  77         }
  78
  79         /**
  80          * @deprecated - use field instead
  81         */
  82         public int sourceEnd() {
  83                 return sourceEnd;
  84         }
  85
  86         /**
  87          * @deprecated - use field instead
  88         */
  89         public int sourceStart() {
  90                 return sourceStart;
  91         }
  92 }