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1 package polyglot.lex;
2
3 import polyglot.util.Position;
4
5
6 public abstract class Token {
7 Position position;
8 int symbol;
9
10 public Token(Position position, int symbol)
11 {
12 this.position = position;
13 this.symbol = symbol;
14 }
15
16 public Position getPosition()
17 {
18 return position;
19 }
20
21 public java_cup.runtime.Symbol symbol() {
22 return new java_cup.runtime.Symbol(symbol, this);
23 }
24
25 protected static String  escape(String s) {
26 StringBuffer sb = new StringBuffer ();
27 for (int i=0; i<s.length(); i++)
28 switch(s.charAt(i)) {
29 case '\t': sb.append("\\t"); break;
30 case '\f': sb.append("\\f"); break;
31 case '\n': sb.append("\\n"); break;
32 default:
33 if ((int)s.charAt(i)<0x20 ||
34 ((int)s.charAt(i) > 0x7e && (int)s.charAt(i) < 0xFF))
35 sb.append("\\"+Integer.toOctalString((int)s.charAt(i)));
36 else
37 sb.append(s.charAt(i));
38 }
39 return sb.toString();
40 }
41 }
42 |
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Java API By Example, From Geeks To Geeks.