Kapitel 4

Der resultierende Parser IV
Compiler
Kapitel 4
Syntaktische Analyse
public static void DigStar() throws java.io.IOException
{switch(tok) {
case ')': case '+': case '*': case '/': case '-':
case (char) (-1): /* eof */
break; /* DigStar --> epsilon */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
/* DigStar --> (1|2|3|4|5|6|7|8|9) DigStar */
advance(); DigStar(); break;
default: eat('0'); /* generate error message */
}}
Autor:
Aho et al.
Remember: Follow(EC) = { ),+,-,*,/ }, nullable(DigStar) !!