[antlr-interest] Fixing grammar rule with trailing optional token
angryal2000 <angryal2000 at yahoo.ca>
angryal2000 at yahoo.ca
Fri Jan 17 14:50:00 PST 2003
I am having difficulty trying to fix the following rule:
data_type: FLOAT (OPENBRACKET INTEGER CLOSEBRACKET)? ;
FLOAT="float";
OPENBRACKET='(';
CLOSEBRACKET=')';
INTEGER=('0'..'9')+;
e.g.
"float" is accept by the rule data_type
as is
"float(23)"
i know my rule is wrong, i am just not sure how to go about fixing it.
any ideas? thanks.
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