[antlr-interest] passing more than one parameter to a rule
Mark Volkmann
r.mark.volkmann at gmail.com
Tue Dec 11 11:58:15 PST 2007
On Dec 11, 2007 1:30 PM, Terence Parr <parrt at cs.usfca.edu> wrote:
> Hi Mark. Are you using the latest build? This sounds familiar.
I'm using version 3.0.1.
>
> Ter
>
> On Dec 11, 2007, at 7:38 AM, Mark Volkmann wrote:
>
> > Here's the beginning of a rule named "define" that passes two String
> > parameters to a rule named "polynomial".
> >
> > define
> > : fn=functionName '(' fv=variable ')' '=' polynomial[$fn.text,
> > $fv.text]
> >
> > Here's the beginning of the "polynomial" rule showing that it accepts
> > two String parameters.
> >
> > polynomial[String fnt, String fvt]
> >
> > When I attempt to test this using the ANTLRWorks debugger I get the
> > following error message.
> >
> > illegal start of expression
> > [09:35:09]
> > polynomial11=polynomial(input.toString(fn.start,fn.stop), ,
> > input.toString(fv.start,fv.stop));
> >
> > Note the consecutive commas as if it's trying to pass three
> > parameters.
> >
> > Any idea what I'm doing wrong?
--
R. Mark Volkmann
Object Computing, Inc.
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