Hi all,
The following comes up often in Factor source:
: (foo) A [ B , (foo) ] when ;
: foo [ (foo) ] { } make ;
I was thinking of making a combinator:
[ A ] [ B ] { } make-while
We can implement it using while:
: while ( pred quot -- )
dupd 2slip rot [ tuck 2slip while ] [ 2drop ] if ; inline
: make-while ( pred quot exemplar -- )
>r [ , ] compose [ while ] 2curry r> make ; inline
Any thoughts? Is there a better name than 'make-while' for this?
Slava
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