[antlr-interest] passing more than one parameter to a rule
Terence Parr
parrt at cs.usfca.edu
Tue Dec 11 18:57:43 PST 2007
Ouch. even
a : A b["foo", $A] ;
b[String x, String y] : C ;
fails. Working on bug right now...i have isolated issue.
Ter
On Dec 11, 2007, at 7:38 AM, Mark Volkmann wrote:
> Here's the beginning of a rule named "define" that passes two String
> parameters to a rule named "polynomial".
>
> define
> : fn=functionName '(' fv=variable ')' '=' polynomial[$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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