Mass Deface _urn_init($self, $nid); } sub _urn_init { my($class, $self, $nid) = @_; bless $self, $class; } sub _nid { my $self = shift; my $opaque = $self->opaque; if (@_) { my $v = $opaque; my $new = shift; $v =~ s/[^:]*/$new/; $self->opaque($v); # XXX possible rebless } $opaque =~ s/:.*//s; return $opaque; } sub nid { # namespace identifier my $self = shift; my $nid = $self->_nid(@_); $nid = lc($nid) if defined($nid); return $nid; } sub nss { # namespace specific string my $self = shift; my $opaque = $self->opaque; if (@_) { my $v = $opaque; my $new = shift; if (defined $new) { $v =~ s/(:|\z).*/:$new/; } else { $v =~ s/:.*//s; } $self->opaque($v); } return undef unless $opaque =~ s/^[^:]*://; return $opaque; } sub canonical { my $self = shift; my $nid = $self->_nid; my $new = $self->SUPER::canonical; return $new if $nid !~ /[A-Z]/ || $nid =~ /%/; $new = $new->clone if $new == $self; $new->nid(lc($nid)); return $new; } 1;