As further references, you may find perlre, perlretut, and perlrequick helpful in general. Also, in the Tutorials of this site, the section Pattern Matching, Regular Expressions, and Parsing.

Give a man a fish:  <%-{-{-{-<

In reply to Re^3: Regex lookahead, lookbehind by AnomalousMonk
in thread Regex lookahead, lookbehind by rahulme81

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