[antlr-interest] avoiding nondeterminism warning

[Terence Parr]

On Sep 14, 2005, at 11:45 AM, Michael Laszlo wrote:

> In my parser class I include a literal in the token section:
>
> tokens {
>     VAR="var";
> }
>
> Also, my lexer includes the rule:
>
> ID:  LETTER (LETTER|DIGIT)*
>
> and antlr.Tool runs without warning as expected. Fine.
>
> However, now I want to perform an action whenever VAR is scanned so  
> I add this rule to my lexer:
>
> VAR: "var" { inVarDefinition = true; };

Instead, add the action in ID with an IF in front to check to see if  
it's "var". :)

Ter
--
CS Professor & Grad Director, University of San Francisco
Creator, ANTLR Parser Generator, http://www.antlr.org
Cofounder, http://www.jguru.com