Fwd: [antlr-interest] Question about tree grammar (antlr 3)

[Jose Ventura]

Hi Terence,

I have added "ASTLabelType=CommonTree" and then I can use $LITERAL.text


Thank's a lot.
José Ventura.




---------- Forwarded message ----------
From: Terence Parr <parrt at cs.usfca.edu>
Date: Jul 4, 2006 5:51 PM
Subject: Re: [antlr-interest] Question about tree grammar (antlr 3)
To: ANTLR Interest <antlr-interest at antlr.org>


On Jul 4, 2006, at 7:34 AM, Jose Ventura wrote:

> I have this rule in a tree grammar (antlr 3)
>
> setDir : ^('dir' LITERAL )
>
> I need to invoke a method with the LITERAL token text, I use this rule
>
> setDir : ^('dir' LITERAL {s.setDirIn(((Tree)$LITERAL).getText());})
>
> Do somebody know one better, without cast?

You can try setting ASTLabelType as a grammar option or more simply
do this:

setDir : ^('dir' LITERAL {s.setDirIn($LITERAL.text);}) ;

:)

Ter
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