unrecognized pattern operator list

[Damien Mattei <damien.mattei@gmail.com>]

hello,

in this code belonging from Guile and Racket version:

(match (list index1-or-keyword-eval-pos index2-or-keyword-eval-pos
index3-or-keyword-or-step-eval-pos)




     ;;  {a <+ (make-vector 7 0)}
     ;; '#(0 0 0 0 0 0 0)
     ;; > {a[$ $] <- #(1 2 3)}
     ;; > a
     ;; '#(1 2 3 0 0 0 0)
     ((list (== slice) (== slice))
      (container-copy! container-eval
               0
               expr-eval)

i have this error:
unrecognized pattern operator list near ((list (== slice) i2 (== slice))
slice is defined like that:

(define $ '$)
(define slice $)

what is the equivalent syntax for kawa?

damien