[antlr-interest] [il-antlr-interest: 30654] Lexer rule precedence

[Massimiliano Donini]

   Thank for quik reply, this is only a bunch of my grammar and the 
'DEAFULT' in the first rule does not exists in the original one, is only 
for demostration purposes, but if you try debugging in AntrlWorks 1.4 
this grammar with 'DEFAULT NULL' lexer catch DEFAULTLL instead of 
DEFAUTL NULL.
Max

Il 26/11/2010 16:55, Akira Akira ha scritto:
> Have you tried:
>
> start:
>     'DEFAULT' expr SEMICOLON
>     | expr SEMICOLON
>     ;
>
> Usually I avoid optionals first. Besides, parsing performance must be 
> better.
>
>
>
> 2010/11/27 Massimiliano Donini <maxgbr at hotmail.it 
> <mailto:maxgbr at hotmail.it>>
>
>      Hi, i have one problems on lexer rules and i can't understand why.
>     As attachment  there's a piece of my grammar where i got the error:
>     Debugging i can correctly match 'NULL', but i can't match 'DEFAULT
>     NULL' there something that i miss....
>     I think there is something wrong with lexer rule precedence, but
>     not sure.
>     Any help would be really appreciated
>
>     Greetings Max
>
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