http://search.cpan.org/grep?cpanid=PETEK&release=HTML-Tree-3.23&string=XHTML+&i=1&n=1&C=0
http://search.cpan.org/grep?cpanid=PETEK&release=HTML-Tree-3.23&string=%2F%3E&i=1&n=1&C=0
http://search.cpan.org/grep?cpanid=PETEK&release=HTML-Tree-3.23&string=empty&i=1&n=1&C=0
http://search.cpan.org/src/PETEK/HTML-Tree-3.23/lib/HTML/Element.pm 
sub starttag {
    my($self, $entities) = @_;

    my $name = $self->{'_tag'};

    return        $self->{'text'}        if $name eq '~literal';
    return "<!" . $self->{'text'} . ">"  if $name eq '~declaration';
    return "<?" . $self->{'text'} . ">"  if $name eq '~pi';

    if($name eq '~comment') {
      if(ref($self->{'text'} || '') eq 'ARRAY') {
        # Does this ever get used?  And is this right?
        return 
          "<!" .
          join(' ', map("--$_--", @{$self->{'text'}}))
          .  ">"
       ;
      } else {
        return "<!--" . $self->{'text'} . "-->"
      }
    }

    my $tag = $html_uc ? "<\U$name" : "<\L$name";
    my $val;
    for (sort keys %$self) { # predictable ordering
        next if !length $_ or m/^_/s or $_ eq '/';
        $val = $self->{$_};
        next if !defined $val; # or ref $val;
        if ($_ eq $val &&   # if attribute is boolean, for this elemen
+t
            exists($HTML::Element::boolean_attr{$name}) &&
            (ref($HTML::Element::boolean_attr{$name})
              ? $HTML::Element::boolean_attr{$name}{$_}
              : $HTML::Element::boolean_attr{$name} eq $_)
        ) {
            $tag .= $html_uc ? " \U$_" : " \L$_";
        }
        else { # non-boolean attribute

          if (ref $val eq 'HTML::Element' and
                  $val->{_tag} eq '~literal') {
            $val = $val->{text};
          }
          else {
            HTML::Entities::encode_entities($val, $entities) unless (d
+efined($entities) && !length($entities));
          }

          $val = qq{"$val"};
          $tag .= $html_uc ? qq{ \U$_\E=$val} : qq{ \L$_\E=$val};
        }
    } # for keys
    if ( scalar $self->content_list == 0 && $self->_empty_element_map-
+>{ $self->tag } ) {
        return $tag . " />";
    }
    else {
        return $tag . ">";
    }
}

[download]

In reply to Re: HTML::TreeBuilder and HTML4.01 empty elements by Anonymous Monk
in thread HTML::TreeBuilder and HTML4.01 empty elements by wfsp

Title:
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