[plt-scheme] match library for r6rs

[Ballnat, Stefan]

I'm trying to find a match library for r6rs. Using the match library
from mzlib didn't work.

 

Following program worked for r5rs:

 

(module match-testing mzscheme 

  

  (require (lib "plt-match.ss" "mzlib"))

           

  (match '(1 2 1)

    ((list a b a) (display "foo")))

 

 )

 

Trying to write it in r6rs leads to an error message:

 

#!r6rs

(library (match-test)

 

         (export)

         (import (rnrs)

                         (mzlib plt-match)

                 )

 

         (match '(1 2 1)

                 ((list a b a) (display "foo")))

)

 

match: no matching clause for {1 2 1}

 

I also tried mzscheme/match or scheme/match with the same results. I
don't even know, if they are the same library.

 

In the Ikarus code I also found a match library that was ported to r6rs.
But using this library with DrScheme leads to following error message:

match.ss:377:6: compile: bad syntax; function application is not
allowed, because no #%app syntax transformer is bound

 

Now, I can't see any solution. 

 

Thanks. Stefan Ballnat

 

PS: I'm using DrScheme 3.99.0.24. 

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