Re^4: Regex match on implicit default variable ($_) in a script, not a one liner

in reply to Re^3: Regex match on implicit default variable ($_) in a script, not a one liner
in thread Regex match on implicit default variable ($_) in a script, not a one liner

I am trying to create a multiline $B from $A. How do I reassemble $B?

Comment on Re^4: Regex match on implicit default variable ($_) in a script, not a one liner

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