[racket] Any way to get "true" quasiquote behavior in match form?

From: Danny Yoo (dyoo at cs.wpi.edu)
Date: Sat Mar 10 22:17:33 EST 2012

On Sat, Mar 10, 2012 at 8:46 PM, rob cook <heycarnut at gmail.com> wrote:
> Still pondering this, seems it is not possible w/o macro or eval.
> Using eval as follows:
> (eval `(match ',(car z) (,@(cdr words) #t) (_ #f)))
> gets me what I need, but the overhead (and ugliness) of using eval is
> killing me.
> In this example, obviously the result of (car z) is what I'm attempting to
> match, and
> the result of (cdr words) is the actual arbitrary match construct that
> results in #t if a match
> is found (I use the whole thing inside a filter, hence only #t/f is needed).

Can you give concrete examples for the free variables 'z' and 'words'
here?  More importantly: what's the task that you're trying to
perform?  It's possible that 'match' is not the right tool here; more
context will help us on the mailing list to determine this.

Posted on the users mailing list.