[antlr-interest] Whats the diff between 'protected' and 'Token.SKIP'

Loring Craymer Loring.G.Craymer at jpl.nasa.gov
Thu Mar 17 21:33:47 PST 2005


protected rules do not produce tokens--they must be called by public rules
which do produce tokens.

--Loring

> -----Original Message-----
> From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-
> bounces at antlr.org] On Behalf Of Prashant Deva
> Sent: Thursday, March 17, 2005 8:44 PM
> To: antlr-interest at antlr.org
> Subject: [antlr-interest] Whats the diff between 'protected' and
> 'Token.SKIP'
> 
> Whats the diff between marking a token as 'SKIP' and marking it as
> 'protected'.
> Eg-
> Whats the diff between the 2 rules -
> WS   : ('\t' | '\r' | ' ') {_ttype=Token.SKIP;} ;
> 
> protected WS   : ('\t' | '\r' | ' ') ;
> 
> PRASHANT



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