=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. See L above. In Perl v5.18 and earlier, it is only guaranteed to return a defined value when the pattern was compiled or executed with the C

modifier. In Perl v5.20, the C

modifier does nothing, so C<${^POSTMATCH}> does the same thing as C<$POSTMATCH>. This variable was added in Perl v5.10.0. This variable is read-only and dynamically-scoped. =back