in reply to Quick Regex Needed
sexeger, YAPE::Regex::Explain#!/usr/bin/perl -- use strict; use warnings; my $str = qw~ \one\two\three\four ~; print "$str\n"; print "$1\n" if $str =~ m~[\\/]([^\\/]+)$~; print $str =~ m~[\\/]([^\\/]+)$~; print "\n"; print scalar reverse($1),"\n" if reverse($str) =~ m~^([^\\/]+)~; print scalar reverse( reverse($str) =~ m~^([^\\/]+)~); # sexeger print "\n"; use YAPE::Regex::Explain; print YAPE::Regex::Explain->new(qr~[\\/]([^\\/]+)$~)->explain; __END__ \one\two\three\four four four four four The regular expression: (?-imsx:[\\/]([^\\/]+)$) matches as follows: NODE EXPLANATION ---------------------------------------------------------------------- (?-imsx: group, but do not capture (case-sensitive) (with ^ and $ matching normally) (with . not matching \n) (matching whitespace and # normally): ---------------------------------------------------------------------- [\\/] any character of: '\\', '/' ---------------------------------------------------------------------- ( group and capture to \1: ---------------------------------------------------------------------- [^\\/]+ any character except: '\\', '/' (1 or more times (matching the most amount possible)) ---------------------------------------------------------------------- ) end of \1 ---------------------------------------------------------------------- $ before an optional \n, and the end of the string ---------------------------------------------------------------------- ) end of grouping ----------------------------------------------------------------------
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