Implementing sequence combinators - Factor Documentation (original) (raw)

Implementing sequence combinators
Factor handbook » The language » Collections » Sequence operations

Creating a new sequence unconditionally:
collector ( quot -- quot' vec )
collector-as ( quot exemplar -- quot' vec )

Creating a new sequence conditionally:

selector ( quot -- selector accum )

selector-as ( quot exemplar -- selector accum )
2selector ( quot -- selector accum1 accum2 )