I'm at a loss to explain this behavior. Is this correct? Or is it a bug. This is version 5.005_03 built for i386-linux. 
#!/usr/bin/perl

my $html = qq(  abcdef  );
sub check
{
        my $pattern = shift;

        my @br;

        eval "\@br = '  abcdef  ' =~ m/$pattern/x";

        die "$@\n" if $@;
        print "PATTERN=m/$pattern/x\n";
        print "ANSWER = ";
        print join("-",@br),"\n";
}

check('(?-x:(abcdef))');
check('(?-x:(abcdef)) # comment here');

[download]
executing this produces 
PATTERN=m/(?-x:(abcdef))/x
ANSWER = abcdef
PATTERN=m/(?-x:(abcdef)) # comment here/x
ANSWER =
I think both check's should produce the same results. Am I right or wrong?

In reply to codem/(?:-x pattern) #comment /x bug?/code by dcorbin

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