=over =item ${^POSTMATCH} X<${^POSTMATCH}> X<$'> X<$POSTMATCH> This is similar to C<$'> (C<$POSTMATCH>) except that it does not incur the performance penalty associated with that variable, and is only guaranteed to return a defined value when the pattern was compiled or executed with the C

modifier. This variable was added in Perl 5.10. This variable is read-only and dynamically-scoped. =back