Forgot to reply to the entire group...
On Fri, Aug 6, 2010 at 8:03 PM, Bill Andersen <bill.ander...@mac.com> wrote:
>
> Is there a good way to do a partial parse of Java code to pick out
> declarations (or any other structure). If it helps, I'm limiting this to
> pretty vanilla Java assignment and declaration expressions - no class defs.
>
>
You could create a lexer that parses only those tokens you define by adding:
@options { filter = true; }
at the top of your lexer.
For example, the following lexer:
lexer grammar Foo;
@options { filter = true; }
Int : '0'..'9'+ ;
will only create tokens consisting of one or more digits and will ignore the
rest of the input.
Note that you cannot (!) create a combined grammar (parser & lexer), only a
lexer-grammar.
Good luck!
Regards,
Bart.
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