This library is unstable; compatibility will not be maintained. See Unstable: May Change Without Warning for more information.

Produces a sequence equivalent to (syntax->list lst).

An in-syntax application can provide better performance for syntax iteration when it appears directly in a for clause.

Produces a sequence equivalent to (in-parallel (sequence-lift car seq) (sequence-lift cdr seq)).

Produces a sequence whose values are the elements of seq, followed by val repeated.

Produces the sequence of f applied to each element of seq.