Here is one solution:

$string =~ s/$regex/eval "\"$replace\""/e;

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The problem with your method was that to get that to work it would have to do variable substitution twice, first to substitute $replace with '$2 $1', then a second variable substitution of $2 and $1. Using eval in connection with the e modifier basically does just this second variable substitution.

In reply to Re: regular expression problem by jethro
in thread regular expression problem by perl_fan

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