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Java > Open Source Codes > edu > rice > cs > util > sexp > TextAtom


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45
46 package edu.rice.cs.util.sexp;
47
48 public class TextAtom implements Atom {
49   protected String JavaDoc _text;
50   
51   public TextAtom(String JavaDoc text) { _text = text; }
52   
53   public String JavaDoc getText() { return _text; }
54   
55   /**
56    * Visitor hook for the TextAtom
57    * @param v the visitor
58    * @return result of the given algorithm
59    */
60   public <Ret> Ret accept(SExpVisitor<Ret> v){
61     return v.forTextAtom(this);
62   }
63   
64   /**
65    * If the given text was a quoted string, the text returned
66    * excludes the quotes around the string.
67    * @return the text that went into making this atom.
68    */
69   public String JavaDoc toString() { return _text; }
70 }
71
72 /**
73  * this type of text atom is mostly like its super class
74  * except its string representation includes the sourrounding
75  * quotes and the instances of the characters: \ " etc are turned
76  * into their corresponding escape character sequences.
77  */
78 class QuotedTextAtom extends TextAtom {
79   
80   public QuotedTextAtom(String JavaDoc text) { super(text); }
81   
82   public String JavaDoc toString() {
83     return edu.rice.cs.util.StringOps.convertToLiteral(_text);
84   }
85 }
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