[antlr-interest] How to translate this V2 Lexer rule to V3 Lexer rule?
Jim Idle
jimi at temporal-wave.com
Wed Dec 3 07:25:54 PST 2008
On Wed, 2008-12-03 at 14:57 +0800, chain one wrote:
> Sorry for spaming
>
>
>
> I noticed that only to remove the '$' in front of getText and
> setType() would work.
> What a stupid question! : )
>
Actually, you should not do that in V3 lexers :-) You hsoudl use:
System.out.println($text);
and
$type = MY_INT_TYPE;
Jim
> 2008/12/3 chain one <chainone at gmail.com>
>
> The V2 Lexer rule is:
>
>
>
> IDENT
>
>
> : ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'0'..'9')*
> {
> if (!parser.isFirst) $setType(globalSearchId($getText()));
> }
> ;
>
>
>
>
> I searched in the ANTLR V3 book but failed to find the way to
> get the Lexer rule's Text and Type directly from
> its alternatives.
>
>
> Anyone who knows , could you please drop me an email?
> Thanks very much!
> Best Regards,
> Chainone
>
>
>
>
>
>
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