If i understood your question correctly, add e option modifier, to eavluate


$line = '<:KEYWORD:4:>';
$value = 5;
$line =~ s/<:KEYWORD:([^:>]*):?>/($1 != 0)? ($value * $1) : $value/e;
print "$line";

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updated:

Prasad

In reply to Re: Evaluating a regex replacement value by prasadbabu
in thread Evaluating a regex replacement value by McDarren

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