[antlr-interest] How to get difference set between two sets?

yhhf_dy yhhf_dy at yahoo.com
Fri Apr 12 09:17:18 PDT 2002


Hi,

There are two set described as following rules :

IDENTIFIER:('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'0'..'9')*
keyword : "class" | "public" | "private" | etc.

I want to get difference between IDENTIFIER set and keyword set, that 
is  difference set = IDENTIFIER set - keyword set

Would you please help me how to implement this in ANTLR.

Thank you ahead.


 

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