in reply to Code expressions in regex refer to the regex group captured, by name / relative
Previous and future ones.
See also
https://perldoc.perl.org/perlvar#Variables-related-to-regular-expressions
Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery
see Re^2: Refer by relative way to regex group (eg. the last one)
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