[antlr-interest] Expression explaination for code generated,

mzukowski at yci.com mzukowski at yci.com
Mon Jul 22 07:53:16 PDT 2002


Token sets hold a bitset representation of a set of characters or tokens.
Unfortunately you antlr doesn't comment what goes into the token set.  You
can either inspect the code or use the option "codeGenBitsetTestThreshold =
999999" to not use bitsets at all.  Then bitsets will only be used for
negated rules such as ~("\n");

Monty

> -----Original Message-----
> From: lawchangyen1978 [mailto:lawchang at comp.nus.edu.sg]
> Sent: Friday, July 19, 2002 5:17 PM
> To: antlr-interest at yahoogroups.com
> Subject: [antlr-interest] Expression explaination for code generated,
> 
> 
> May i know what does the below expression means in the lexer code 
> that is generated? Thanks for all advice.
> 
> (_tokenSet_1.member(LA(1))
> (_tokenSet_2.member(LA(1)) etc.
> 
> Regards
> Jeffrey
> 
> 
>  
> 
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