tye~

print the re, this might give you a clue:

my $match= "hi";
my $re= qr/($match)/;
print "\$match is $match\n";
print "\$re is $re\n";
$re= qr/($match)/io;
print "\$re is $re\n";
$match= "lo";
$re= qr/($match)/;
print "\$re is $re\n";
[download]

prints~

$match is hi
$re is (?-xism:(hi))
$re is (?i-xsm:(hi))
$re is (?-xism:(lo))
[download]

so 'o' is not really supported, it's masked. for some reason, you can put it in the expression and it won't complain.

~Particle

nevermind the xp, remember the experience.