Nested unquote-splicing

[jcubic]

It seems that expression ,@,@x is ignored

(define x '(1 2 3))
(define y '(11 22 33))
(define l '(x y))

``(,@,@l ,@,@l) 

it should evaluate to:

(quasiquote ((unquote-splicing x y) (unquote-splicing x y)))

BiwaScheme returns:

(quasiquote ((unquote-splicing (unquote-splicing l)) (unquote-splicing (unquote-splicing l))))

You should eval this and get:

(1 2 3 11 22 33)

But BiwaScheme return error:

unquote-splicing(,@) must be inside quasiquote(`) []

[jcubic]

@yhara before you start working on a fix, I suggest reading this article:

• Quasiquotation in Lips by Alan Bawden

There are a lot of different combinations of unquote and unquote-splicing, they all should work.

[yhara]

@jcubic Oh thank you!