[plt-scheme] combining ... and . in syntax-case patterns

I think you probably have to write it a little more explicitly,
perhaps in a loop:

 ([v t] . rest) ;; pattern for collect & recur
 (x . rest)     ;; pattern for all done

But it seems like syntax-case should signal a syntax error for
patterns like that (altho perhaps there is some interesting reason why
that's tricky?)

Robby

On Jan 19, 2008 1:48 PM, Sam TH <samth at ccs.neu.edu> wrote:
> I would like to write the following syntax-case pattern:
>
> (syntax-case x ()
>   [([v t] ... . more)
>    #'(v ...)]
>   [_ (error)])
>
> That is, any number of [v t] forms, followed by anything else.
>
> Unfortunately, this pattern never matches any syntax objects.  Is
> there a better way to write this pattern, or do I need to resort to
> explicitly destructuring the syntax object?
>
> Thanks,
> --
> sam th
> samth at ccs.neu.edu
> _________________________________________________
>   For list-related administrative tasks:
>   http://list.cs.brown.edu/mailman/listinfo/plt-scheme
>