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( #3333=superdoc: print w/replies, xml ) Need Help??

OK, I shortened it, hope this is more acceptable. In the process I discovered, as I suspected, that it has something to do with the regex order, but exactly what is still pretty opaque to me.

#!/usr/bin/perl my @words = ('aa', 'as', 'es', 'is', 'os', 'sh', 'si', 'so'); print "WORDS: @words\n"; print "----------------------------\n"; my $regex = ".?a?"; print "Matches for regex pattern : $regex\n\n"; foreach (@words) { if(join('', sort split //, $_) =~ /^$regex$/) { print "$_\n"; } } print "----------------------------\n"; my $regex = "a?.?"; print "Matches for regex pattern : $regex\n\n"; foreach (@words) { if(join('', sort split //, $_) =~ /^$regex$/) { print "$_\n"; } } print "----------------------------\n"; $regex = "s?.?"; print "Matches for regex pattern : $regex\n\n"; foreach (@words) { if(join('', sort split //, $_) =~ /^$regex$/) { print "$_\n"; } } print "----------------------------\n"; $regex = ".?s?"; print "Matches for regex pattern : $regex\n\n"; foreach (@words) { if(join('', sort split //, $_) =~ /^$regex$/) { print "$_\n"; } } print "----------------------------\n";

OUTPUT

WORDS: aa as es is os sh si so ---------------------------- Matches for regex pattern : .?a? aa ---------------------------- Matches for regex pattern : a?.? aa as ---------------------------- Matches for regex pattern : s?.? ---------------------------- Matches for regex pattern : .?s? as es is os sh si so ----------------------------

Regards.


In reply to Re^3: Problem with regex wildcard operator (.)...? by sbrothy
in thread Problem with regex wildcard operator (.)...? by sbrothy

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