giles 2a36e692f4 mk: take-while-o + drop-while-o — predicate-driven prefix/suffix ...

(take-while-o pred l result): take elements from l while pred holds,
stopping at the first element that fails. (drop-while-o pred l result):
drop matching elements, return the rest including the first non-match.

Together: (take-while p l) ⊕ (drop-while p l) = l, verified by an
end-to-end roundtrip test.

8 new tests, 546/546 cumulative.

2026-05-08 12:30:53 +00:00

1.3 KiB

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