I am unfamiliar with the K operator ...

For  \K (note the backslash), introduced in Perl version 5.10, see Lookaround Assertions in Extended Patterns in perlre.

Give a man a fish:  <%-{-{-{-<

In reply to Re^3: Regex Parsing Chars in a Line by AnomalousMonk
in thread Regex Parsing Chars in a Line by kel

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