Regexp::MatchContext 0.0.2

Regexp::MatchContext is Perl module to replace (and improve) $MATCH, $PREMATCH, and $POSTMATCH SYNOPSIS use Regexp::MatchContext -vars; $str = m/(?p) d+ /; print "Before: $PREMATCHn"; print "Matched: $MATCHn"; print "After: $POSTMATCHn"; $MATCH = 2 * $MATCH; # substitute into original $str The English.pm module provides named aliases for Perls built-in $`, $& and $ variables: $PREMATCH, $MATCH, and $POSTMATCH. Unfortunately, those aliases suffer the same problems as their originals: they degrade the performance of every single regex in your program, even if youre only using them to get information about a single match. This module also provides $PREMATCH, $MATCH, and $POSTMATCH, but in a way that only impacts the performance of matches that you specify. That is, these three variables are only set if the most recently matched regex contained the special (non-standard) meta- flag: (?p). That is: use Regexp::MatchContext -vars; $str = foobarbaz; $str =~ /(?p) foo /x; # $PREMATCH contains foo # $MATCH contains bar # $POSTMATCH contains baz $str =~ / foo /x; # $PREMATCH, $MATCH, and $POSTMATCH all undef The (?p) marker can be placed anywhere within the regex and, except for setting the three context variables on a successful match, is otherwise totally ignored..

Requirements:	No special requirements
Platforms:	Linux
Keyword:	Improve,  Libraries,  Matchcontext,  Module,  Perl,  Perl Module,  Postmatch,  Prematch,  Programming,  Regexpmatchcontext,  Replace,  Str
Users rating:	0/10