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


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45
46 package edu.rice.cs.util.sexp;
47
48 //package edu.rice.cs.drjava.project;
49
50 /**
51  * SExp ::= Atom | SEList
52  *
53  * SEList ::= Empty | Cons(SExp, SEList)
54  *
55  * Atom ::= text | number | boolean
56  *
57  * text ::= string | symbol
58  *
59  * string ::= "non-quote-char*"
60  * symbol ::= non-special-char*
61  *
62  * non-quote-char ::= alphanumeric | escapes | white-sp-char | other
63  *
64  * escapes ::= \" | \\
65  *
66  * white-sp-char ::= ascii chars from 0-32
67  *
68  * boolean ::= true | false
69  *
70  * number ::= digit* {. digit*}
71  */
72 public interface SExp {
73   
74   public <Ret> Ret accept(SExpVisitor<Ret> v);
75   
76 }
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