pattern matching - In Racket or Scheme, is there any way to convert an ellipsis syntax object to a list of syntax objects? -


for example:

(syntax-case #'(a b c d) ()   ((x ...) (list #'x ...))

in example, (list #'x ...) not work, can output equivalent of (list #'a #'b #'c #'d)?

here's 1 way of doing it:

welcome racket v5.90.0.6. -> (syntax-case #'(a b c d) ()      ((x ...) (syntax->list #'(x ...)))) '(#<syntax:5:16 a> #<syntax:5:18 b> #<syntax:5:20 c> #<syntax:5:22 d>)

for more, see syntax object operations section , functions exported syntax/stx.


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