> Are you implying that 5.38 is needed for my code?

No, sorry, I misread what you wrote:

> Unfortunately with variable length this still seems experimental with 5.38 ...

In fact, 5.30 is enough to run it, see perlre:

Prior to Perl 5.30, it worked only for fixed-width lookbehind, but starting in that release, it can handle variable lengths from 1 to 255 characters as an experimental feature.

The (*pla:pattern) syntax is from 5.28, in earlier versions, the only possible syntax was (?<=).

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In reply to Re^3: How to capture backwards using regex? by choroba
in thread How to capture backwards using regex? by harangzsolt33

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