That's a complicated question and you should really provide a SSCCE to handle it.

FWIW: my guts say you might use look behind assertions. ...

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re: Is there a way to allow consecutive zero-length matches without using pos()? by LanX
in thread Is there a way to allow consecutive zero-length matches without using pos()? by jsm

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