Nice. The first snippet is exactly what I would have done, except I'd replace
(??{ (pos()-$^R < 5) ? "" : "no\\bmatch" })
with
(?(?{ pos()-$^R >= 5 })(?!))
to save from compiling patterns repeatedly.

In reply to Re^2: Can you do "conjunctive" (overlapping) conditions in a single regexp? by ikegami
in thread Can you do "conjunctive" (overlapping) conditions in a single regexp? by puterboy

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