| Current Path : /proc/2/root/usr/share/perl5/HTML/DOM/ |
| Current File : //proc/2/root/usr/share/perl5/HTML/DOM/_TreeBuilder.pm |
# This is a fork of HTML::Element. Eventually the code may be merged.
package HTML::DOM::_TreeBuilder;
use warnings;
use strict;
use integer; # vroom vroom!
use Carp ();
use vars qw(@ISA $VERSION $DEBUG);
#---------------------------------------------------------------------------
# Make a 'DEBUG' constant...
BEGIN {
# We used to have things like
# print $indent, "lalala" if $Debug;
# But there were an awful lot of having to evaluate $Debug's value.
# If we make that depend on a constant, like so:
# sub DEBUG () { 1 } # or whatever value.
# ...
# print $indent, "lalala" if DEBUG;
# Which at compile-time (thru the miracle of constant folding) turns into:
# print $indent, "lalala";
# or, if DEBUG is a constant with a true value, then that print statement
# is simply optimized away, and doesn't appear in the target code at all.
# If you don't believe me, run:
# perl -MO=Deparse,-uHTML::DOM::_TreeBuilder -e 'BEGIN { \
# $HTML::DOM::_TreeBuilder::DEBUG = 4} use HTML::DOM::_TreeBuilder'
# and see for yourself (substituting whatever value you want for $DEBUG
# there).
## no critic
if ( defined &DEBUG ) {
# Already been defined! Do nothing.
}
elsif ( $] < 5.00404 ) {
# Grudgingly accomodate ancient (pre-constant) versions.
eval 'sub DEBUG { $Debug } ';
}
elsif ( !$DEBUG ) {
eval 'sub DEBUG () {0}'; # Make it a constant.
}
elsif ( $DEBUG =~ m<^\d+$>s ) {
eval 'sub DEBUG () { ' . $DEBUG . ' }'; # Make THAT a constant.
}
else { # WTF?
warn "Non-numeric value \"$DEBUG\" in \$HTML::DOM::_Element::DEBUG";
eval 'sub DEBUG () { $DEBUG }'; # I guess.
}
## use critic
}
#---------------------------------------------------------------------------
use HTML::Entities ();
use HTML::Tagset 3.02 ();
use HTML::DOM::_Element ();
use HTML::Parser ();
@ISA = qw(HTML::DOM::_Element HTML::Parser);
$VERSION = 4.2001;
# This looks schizoid, I know.
# It's not that we ARE an element AND a parser.
# We ARE an element, but one that knows how to handle signals
# (method calls) from Parser in order to elaborate its subtree.
# Legacy aliases:
*HTML::DOM::_TreeBuilder::isKnown = \%HTML::Tagset::isKnown;
*HTML::DOM::_TreeBuilder::canTighten = \%HTML::Tagset::canTighten;
*HTML::DOM::_TreeBuilder::isHeadElement = \%HTML::Tagset::isHeadElement;
*HTML::DOM::_TreeBuilder::isBodyElement = \%HTML::Tagset::isBodyElement;
*HTML::DOM::_TreeBuilder::isPhraseMarkup = \%HTML::Tagset::isPhraseMarkup;
*HTML::DOM::_TreeBuilder::isHeadOrBodyElement = \%HTML::Tagset::isHeadOrBodyElement;
*HTML::DOM::_TreeBuilder::isList = \%HTML::Tagset::isList;
*HTML::DOM::_TreeBuilder::isTableElement = \%HTML::Tagset::isTableElement;
*HTML::DOM::_TreeBuilder::isFormElement = \%HTML::Tagset::isFormElement;
*HTML::DOM::_TreeBuilder::p_closure_barriers = \@HTML::Tagset::p_closure_barriers;
#==========================================================================
# Two little shortcut constructors:
sub new_from_file { # or from a FH
my $class = shift;
Carp::croak("new_from_file takes only one argument")
unless @_ == 1;
Carp::croak("new_from_file is a class method only")
if ref $class;
my $new = $class->new();
$new->parse_file( $_[0] );
return $new;
}
sub new_from_content { # from any number of scalars
my $class = shift;
Carp::croak("new_from_content is a class method only")
if ref $class;
my $new = $class->new();
foreach my $whunk (@_) {
if ( ref($whunk) eq 'SCALAR' ) {
$new->parse($$whunk);
}
else {
$new->parse($whunk);
}
last if $new->{'_stunted'}; # might as well check that.
}
$new->eof();
return $new;
}
# TODO: document more fully?
sub parse_content { # from any number of scalars
my $tree = shift;
my $retval;
foreach my $whunk (@_) {
if ( ref($whunk) eq 'SCALAR' ) {
$retval = $tree->parse($$whunk);
}
else {
$retval = $tree->parse($whunk);
}
last if $tree->{'_stunted'}; # might as well check that.
}
$tree->eof();
return $retval;
}
#---------------------------------------------------------------------------
sub new { # constructor!
my $class = shift;
$class = ref($class) || $class;
# Initialize HTML::DOM::_Element part
my $self = $class->element_class->new('html');
{
# A hack for certain strange versions of Parser:
my $other_self = HTML::Parser->new();
%$self = ( %$self, %$other_self ); # copy fields
# Yes, multiple inheritance is messy. Kids, don't try this at home.
bless $other_self, "HTML::DOM::_TreeBuilder::_hideyhole";
# whack it out of the HTML::Parser class, to avoid the destructor
}
# The root of the tree is special, as it has these funny attributes,
# and gets reblessed into this class.
# Initialize parser settings
$self->{'_implicit_tags'} = 1;
$self->{'_implicit_body_p_tag'} = 0;
# If true, trying to insert text, or any of %isPhraseMarkup right
# under 'body' will implicate a 'p'. If false, will just go there.
$self->{'_tighten'} = 1;
# whether ignorable WS in this tree should be deleted
$self->{'_implicit'} = 1; # to delete, once we find a real open-"html" tag
$self->{'_ignore_unknown'} = 1;
$self->{'_ignore_text'} = 0;
$self->{'_warn'} = 0;
$self->{'_no_space_compacting'} = 0;
$self->{'_store_comments'} = 0;
$self->{'_store_declarations'} = 1;
$self->{'_store_pis'} = 0;
$self->{'_p_strict'} = 0;
$self->{'_no_expand_entities'} = 0;
# Parse attributes passed in as arguments
if (@_) {
my %attr = @_;
for ( keys %attr ) {
$self->{"_$_"} = $attr{$_};
}
}
$HTML::DOM::_Element::encoded_content = $self->{'_no_expand_entities'};
# rebless to our class
bless $self, $class;
$self->{'_element_count'} = 1;
# undocumented, informal, and maybe not exactly correct
$self->{'_head'} = $self->insert_element( 'head', 1 );
$self->{'_pos'} = undef; # pull it back up
$self->{'_body'} = $self->insert_element( 'body', 1 );
$self->{'_pos'} = undef; # pull it back up again
return $self;
}
#==========================================================================
sub _elem # universal accessor...
{
my ( $self, $elem, $val ) = @_;
my $old = $self->{$elem};
$self->{$elem} = $val if defined $val;
return $old;
}
# accessors....
sub implicit_tags { shift->_elem( '_implicit_tags', @_ ); }
sub implicit_body_p_tag { shift->_elem( '_implicit_body_p_tag', @_ ); }
sub p_strict { shift->_elem( '_p_strict', @_ ); }
sub no_space_compacting { shift->_elem( '_no_space_compacting', @_ ); }
sub ignore_unknown { shift->_elem( '_ignore_unknown', @_ ); }
sub ignore_text { shift->_elem( '_ignore_text', @_ ); }
sub ignore_ignorable_whitespace { shift->_elem( '_tighten', @_ ); }
sub store_comments { shift->_elem( '_store_comments', @_ ); }
sub store_declarations { shift->_elem( '_store_declarations', @_ ); }
sub store_pis { shift->_elem( '_store_pis', @_ ); }
sub warn { shift->_elem( '_warn', @_ ); }
sub no_expand_entities {
shift->_elem( '_no_expand_entities', @_ );
$HTML::DOM::_Element::encoded_content = @_;
}
#==========================================================================
sub warning {
my $self = shift;
CORE::warn("HTML::Parse: $_[0]\n") if $self->{'_warn'};
# should maybe say HTML::DOM::_TreeBuilder instead
}
#==========================================================================
{
# To avoid having to rebuild these lists constantly...
my $_Closed_by_structurals = [qw(p h1 h2 h3 h4 h5 h6 pre textarea)];
my $indent;
sub start {
return if $_[0]{'_stunted'};
# Accept a signal from HTML::Parser for start-tags.
my ( $self, $tag, $attr ) = @_;
# Parser passes more, actually:
# $self->start($tag, $attr, $attrseq, $origtext)
# But we can merrily ignore $attrseq and $origtext.
if ( $tag eq 'x-html' ) {
print "Ignoring open-x-html tag.\n" if DEBUG;
# inserted by some lame code-generators.
return; # bypass tweaking.
}
$tag =~ s{/$}{}s; # So <b/> turns into <b>. Silently forgive.
unless ( $tag =~ m/^[-_a-zA-Z0-9:%]+$/s ) {
DEBUG and print "Start-tag name $tag is no good. Skipping.\n";
return;
# This avoids having Element's new() throw an exception.
}
my $ptag = ( my $pos = $self->{'_pos'} || $self )->{'_tag'};
my $already_inserted;
#my($indent);
if (DEBUG) {
# optimization -- don't figure out indenting unless we're in debug mode
my @lineage = $pos->lineage;
$indent = ' ' x ( 1 + @lineage );
print $indent, "Proposing a new \U$tag\E under ",
join( '/', map $_->{'_tag'}, reverse( $pos, @lineage ) )
|| 'Root',
".\n";
#} else {
# $indent = ' ';
}
#print $indent, "POS: $pos ($ptag)\n" if DEBUG > 2;
# $attr = {%$attr};
foreach my $k ( keys %$attr ) {
# Make sure some stooge doesn't have "<span _content='pie'>".
# That happens every few million Web pages.
$attr->{ ' ' . $k } = delete $attr->{$k}
if length $k and substr( $k, 0, 1 ) eq '_';
# Looks bad, but is fine for round-tripping.
}
my $e = $self->element_class->new( $tag, %$attr );
# Make a new element object.
# (Only rarely do we end up just throwing it away later in this call.)
# Some prep -- custom messiness for those damned tables, and strict P's.
if ( $self->{'_implicit_tags'} ) { # wallawallawalla!
unless ( $HTML::DOM::_TreeBuilder::isTableElement{$tag} ) {
if ( $ptag eq 'table' ) {
print $indent,
" * Phrasal \U$tag\E right under TABLE makes implicit TR and TD\n"
if DEBUG > 1;
$self->insert_element( 'tr', 1 );
$pos = $self->insert_element( 'td', 1 )
; # yes, needs updating
}
elsif ( $ptag eq 'tr' ) {
print $indent,
" * Phrasal \U$tag\E right under TR makes an implicit TD\n"
if DEBUG > 1;
$pos = $self->insert_element( 'td', 1 )
; # yes, needs updating
}
$ptag = $pos->{'_tag'}; # yes, needs updating
}
# end of table-implication block.
# Now maybe do a little dance to enforce P-strictness.
# This seems like it should be integrated with the big
# "ALL HOPE..." block, further below, but that doesn't
# seem feasable.
if ( $self->{'_p_strict'}
and $HTML::DOM::_TreeBuilder::isKnown{$tag}
and not $HTML::Tagset::is_Possible_Strict_P_Content{$tag} )
{
my $here = $pos;
my $here_tag = $ptag;
while (1) {
if ( $here_tag eq 'p' ) {
print $indent, " * Inserting $tag closes strict P.\n"
if DEBUG > 1;
$self->end( \q{p} );
# NB: same as \'q', but less confusing to emacs cperl-mode
last;
}
#print("Lasting from $here_tag\n"),
last
if $HTML::DOM::_TreeBuilder::isKnown{$here_tag}
and
not $HTML::Tagset::is_Possible_Strict_P_Content{
$here_tag};
# Don't keep looking up the tree if we see something that can't
# be strict-P content.
$here_tag
= ( $here = $here->{'_parent'} || last )->{'_tag'};
} # end while
$ptag = ( $pos = $self->{'_pos'} || $self )
->{'_tag'}; # better update!
}
# end of strict-p block.
}
# And now, get busy...
#----------------------------------------------------------------------
if ( !$self->{'_implicit_tags'} ) { # bimskalabim
# do nothing
print $indent, " * _implicit_tags is off. doing nothing\n"
if DEBUG > 1;
#----------------------------------------------------------------------
}
elsif ( $HTML::DOM::_TreeBuilder::isHeadOrBodyElement{$tag} ) {
if ( $pos->is_inside('body') ) { # all is well
print $indent,
" * ambilocal element \U$tag\E is fine under BODY.\n"
if DEBUG > 1;
}
elsif ( $pos->is_inside('head') ) {
print $indent,
" * ambilocal element \U$tag\E is fine under HEAD.\n"
if DEBUG > 1;
}
else {
# In neither head nor body! mmmmm... put under head?
if ( $ptag eq 'html' ) { # expected case
# TODO?? : would there ever be a case where _head would be
# absent from a tree that would ever be accessed at this
# point?
die "Where'd my head go?" unless ref $self->{'_head'};
if ( $self->{'_head'}{'_implicit'} ) {
print $indent,
" * ambilocal element \U$tag\E makes an implicit HEAD.\n"
if DEBUG > 1;
# or rather, points us at it.
$self->{'_pos'}
= $self->{'_head'}; # to insert under...
}
else {
$self->warning(
"Ambilocal element <$tag> not under HEAD or BODY!?"
);
# Put it under HEAD by default, I guess
$self->{'_pos'}
= $self->{'_head'}; # to insert under...
}
}
else {
# Neither under head nor body, nor right under html... pass thru?
$self->warning(
"Ambilocal element <$tag> neither under head nor body, nor right under html!?"
);
}
}
#----------------------------------------------------------------------
}
elsif ( $HTML::DOM::_TreeBuilder::isBodyElement{$tag} ) {
# Ensure that we are within <body>
if ( $ptag eq 'body' ) {
# We're good.
}
elsif (
$HTML::DOM::_TreeBuilder::isBodyElement{$ptag} # glarg
and not $HTML::DOM::_TreeBuilder::isHeadOrBodyElement{$ptag}
)
{
# Special case: Save ourselves a call to is_inside further down.
# If our $ptag is an isBodyElement element (but not an
# isHeadOrBodyElement element), then we must be under body!
print $indent, " * Inferring that $ptag is under BODY.\n",
if DEBUG > 3;
# I think this and the test for 'body' trap everything
# bodyworthy, except the case where the parent element is
# under an unknown element that's a descendant of body.
}
elsif ( $pos->is_inside('head') ) {
print $indent,
" * body-element \U$tag\E minimizes HEAD, makes implicit BODY.\n"
if DEBUG > 1;
$ptag = (
$pos = $self->{'_pos'}
= $self->{'_body'} # yes, needs updating
|| die "Where'd my body go?"
)->{'_tag'}; # yes, needs updating
}
elsif ( !$pos->is_inside('body') ) {
print $indent,
" * body-element \U$tag\E makes implicit BODY.\n"
if DEBUG > 1;
$ptag = (
$pos = $self->{'_pos'}
= $self->{'_body'} # yes, needs updating
|| die "Where'd my body go?"
)->{'_tag'}; # yes, needs updating
}
# else we ARE under body, so okay.
# Handle implicit endings and insert based on <tag> and position
# ... ALL HOPE ABANDON ALL YE WHO ENTER HERE ...
if ( $tag eq 'p'
or $tag eq 'h1'
or $tag eq 'h2'
or $tag eq 'h3'
or $tag eq 'h4'
or $tag eq 'h5'
or $tag eq 'h6'
or $tag eq 'form'
# Hm, should <form> really be here?!
)
{
# Can't have <p>, <h#> or <form> inside these
$self->end(
$_Closed_by_structurals,
@HTML::DOM::_TreeBuilder::p_closure_barriers
# used to be just li!
);
}
elsif ( $tag eq 'ol' or $tag eq 'ul' or $tag eq 'dl' ) {
# Can't have lists inside <h#> -- in the unlikely
# event anyone tries to put them there!
if ( $ptag eq 'h1'
or $ptag eq 'h2'
or $ptag eq 'h3'
or $ptag eq 'h4'
or $ptag eq 'h5'
or $ptag eq 'h6' )
{
$self->end( \$ptag );
}
# TODO: Maybe keep closing up the tree until
# the ptag isn't any of the above?
# But anyone that says <h1><h2><ul>...
# deserves what they get anyway.
}
elsif ( $tag eq 'li' ) { # list item
# Get under a list tag, one way or another
unless (
exists $HTML::DOM::_TreeBuilder::isList{$ptag}
or $self->end( \q{*}, keys %HTML::DOM::_TreeBuilder::isList ) #'
)
{
print $indent,
" * inserting implicit UL for lack of containing ",
join( '|', keys %HTML::DOM::_TreeBuilder::isList ), ".\n"
if DEBUG > 1;
$self->insert_element( 'ul', 1 );
}
}
elsif ( $tag eq 'dt' or $tag eq 'dd' ) {
# Get under a DL, one way or another
unless ( $ptag eq 'dl' or $self->end( \q{*}, 'dl' ) ) { #'
print $indent,
" * inserting implicit DL for lack of containing DL.\n"
if DEBUG > 1;
$self->insert_element( 'dl', 1 );
}
}
elsif ( $HTML::DOM::_TreeBuilder::isFormElement{$tag} ) {
if ($self->{
'_ignore_formies_outside_form'} # TODO: document this
and not $pos->is_inside('form')
)
{
print $indent,
" * ignoring \U$tag\E because not in a FORM.\n"
if DEBUG > 1;
return; # bypass tweaking.
}
if ( $tag eq 'option' ) {
# return unless $ptag eq 'select';
$self->end( \q{option} );
$ptag = ( $self->{'_pos'} || $self )->{'_tag'};
unless ( $ptag eq 'select' or $ptag eq 'optgroup' ) {
print $indent,
" * \U$tag\E makes an implicit SELECT.\n"
if DEBUG > 1;
$pos = $self->insert_element( 'select', 1 );
# but not a very useful select -- has no 'name' attribute!
# is $pos's value used after this?
}
}
}
elsif ( $HTML::DOM::_TreeBuilder::isTableElement{$tag} ) {
if ( !$pos->is_inside('table') ) {
print $indent, " * \U$tag\E makes an implicit TABLE\n"
if DEBUG > 1;
$self->insert_element( 'table', 1 );
}
if ( $tag eq 'td' or $tag eq 'th' ) {
# Get under a tr one way or another
unless (
$ptag eq 'tr' # either under a tr
or $self->end( \q{*}, 'tr',
'table' ) #or we can get under one
)
{
print $indent,
" * \U$tag\E under \U$ptag\E makes an implicit TR\n"
if DEBUG > 1;
$self->insert_element( 'tr', 1 );
# presumably pos's value isn't used after this.
}
}
else {
$self->end( \$tag, 'table' ); #'
}
# Hmm, I guess this is right. To work it out:
# tr closes any open tr (limited at a table)
# thead closes any open thead (limited at a table)
# tbody closes any open tbody (limited at a table)
# tfoot closes any open tfoot (limited at a table)
# colgroup closes any open colgroup (limited at a table)
# col can try, but will always fail, at the enclosing table,
# as col is empty, and therefore never open!
# But!
# td closes any open td OR th (limited at a table)
# th closes any open th OR td (limited at a table)
# ...implementable as "close to a tr, or make a tr"
}
elsif ( $HTML::DOM::_TreeBuilder::isPhraseMarkup{$tag} ) {
if ( $ptag eq 'body' and $self->{'_implicit_body_p_tag'} ) {
print
" * Phrasal \U$tag\E right under BODY makes an implicit P\n"
if DEBUG > 1;
$pos = $self->insert_element( 'p', 1 );
# is $pos's value used after this?
}
}
# End of implicit endings logic
# End of "elsif ($HTML::DOM::_TreeBuilder::isBodyElement{$tag}"
#----------------------------------------------------------------------
}
elsif ( $HTML::DOM::_TreeBuilder::isHeadElement{$tag} ) {
if ( $pos->is_inside('body') ) {
print $indent, " * head element \U$tag\E found inside BODY!\n"
if DEBUG;
$self->warning("Header element <$tag> in body"); # [sic]
}
elsif ( !$pos->is_inside('head') ) {
print $indent,
" * head element \U$tag\E makes an implicit HEAD.\n"
if DEBUG > 1;
}
else {
print $indent,
" * head element \U$tag\E goes inside existing HEAD.\n"
if DEBUG > 1;
}
$self->{'_pos'} = $self->{'_head'} || die "Where'd my head go?";
#----------------------------------------------------------------------
}
elsif ( $tag eq 'html' ) {
if ( delete $self->{'_implicit'} ) { # first time here
print $indent, " * good! found the real HTML element!\n"
if DEBUG > 1;
}
else {
print $indent, " * Found a second HTML element\n"
if DEBUG;
$self->warning("Found a nested <html> element");
}
# in either case, migrate attributes to the real element
for ( keys %$attr ) {
$self->attr( $_, $attr->{$_} );
}
$self->{'_pos'} = undef;
return $self; # bypass tweaking.
#----------------------------------------------------------------------
}
elsif ( $tag eq 'head' ) {
my $head = $self->{'_head'} || die "Where'd my head go?";
if ( delete $head->{'_implicit'} ) { # first time here
print $indent, " * good! found the real HEAD element!\n"
if DEBUG > 1;
}
else { # been here before
print $indent, " * Found a second HEAD element\n"
if DEBUG;
$self->warning("Found a second <head> element");
}
# in either case, migrate attributes to the real element
for ( keys %$attr ) {
$head->attr( $_, $attr->{$_} );
}
return $self->{'_pos'} = $head; # bypass tweaking.
#----------------------------------------------------------------------
}
elsif ( $tag eq 'body' ) {
my $body = $self->{'_body'} || die "Where'd my body go?";
if ( delete $body->{'_implicit'} ) { # first time here
print $indent, " * good! found the real BODY element!\n"
if DEBUG > 1;
}
else { # been here before
print $indent, " * Found a second BODY element\n"
if DEBUG;
$self->warning("Found a second <body> element");
}
# in either case, migrate attributes to the real element
for ( keys %$attr ) {
$body->attr( $_, $attr->{$_} );
}
$self->{'_pos'} = $body unless $pos->is_inside('body');
return $body; # bypass tweaking.
#----------------------------------------------------------------------
}
elsif ( $tag eq 'frameset' ) {
if (!( $self->{'_frameset_seen'}++ ) # first frameset seen
and !$self->{'_noframes_seen'}
# otherwise it'll be under the noframes already
and !$self->is_inside('body')
)
{
# The following is a bit of a hack. We don't use the normal
# insert_element because 1) we don't want it as _pos, but instead
# right under $self, and 2), more importantly, that we don't want
# this inserted at the /end/ of $self's content_list, but instead
# in the middle of it, specifiaclly right before the body element.
#
my $c = $self->{'_content'} || die "Contentless root?";
my $body = $self->{'_body'} || die "Where'd my BODY go?";
for ( my $i = 0; $i < @$c; ++$i ) {
if ( $c->[$i] eq $body ) {
splice( @$c, $i, 0, $self->{'_pos'} = $pos = $e );
$e->{'_parent'} = $self;
$already_inserted = 1;
print $indent,
" * inserting 'frameset' right before BODY.\n"
if DEBUG > 1;
last;
}
}
die "BODY not found in children of root?"
unless $already_inserted;
}
}
elsif ( $tag eq 'frame' ) {
# Okay, fine, pass thru.
# Should probably enforce that these should be under a frameset.
# But hey. Ditto for enforcing that 'noframes' should be under
# a 'frameset', as the DTDs say.
}
elsif ( $tag eq 'noframes' ) {
# This basically assumes there'll be exactly one 'noframes' element
# per document. At least, only the first one gets to have the
# body under it. And if there are no noframes elements, then
# the body pretty much stays where it is. Is that ever a problem?
if ( $self->{'_noframes_seen'}++ ) {
print $indent, " * ANOTHER noframes element?\n" if DEBUG;
}
else {
if ( $pos->is_inside('body') ) {
print $indent, " * 'noframes' inside 'body'. Odd!\n"
if DEBUG;
# In that odd case, we /can't/ make body a child of 'noframes',
# because it's an ancestor of the 'noframes'!
}
else {
$e->push_content( $self->{'_body'}
|| die "Where'd my body go?" );
print $indent, " * Moving body to be under noframes.\n"
if DEBUG;
}
}
#----------------------------------------------------------------------
}
else {
# unknown tag
if ( $self->{'_ignore_unknown'} ) {
print $indent, " * Ignoring unknown tag \U$tag\E\n" if DEBUG;
$self->warning("Skipping unknown tag $tag");
return;
}
else {
print $indent, " * Accepting unknown tag \U$tag\E\n"
if DEBUG;
}
}
#----------------------------------------------------------------------
# End of mumbo-jumbo
print $indent, "(Attaching ", $e->{'_tag'}, " under ",
( $self->{'_pos'} || $self )->{'_tag'}, ")\n"
# because if _pos isn't defined, it goes under self
if DEBUG;
# The following if-clause is to delete /some/ ignorable whitespace
# nodes, as we're making the tree.
# This'd be a node we'd catch later anyway, but we might as well
# nip it in the bud now.
# This doesn't catch /all/ deletable WS-nodes, so we do have to call
# the tightener later to catch the rest.
if ( $self->{'_tighten'} and !$self->{'_ignore_text'} )
{ # if tightenable
my ( $sibs, $par );
if (( $sibs = ( $par = $self->{'_pos'} || $self )->{'_content'} )
and @$sibs # parent already has content
and !
ref( $sibs->[-1] ) # and the last one there is a text node
and $sibs->[-1] !~ m<[^\n\r\f\t ]>s # and it's all whitespace
and ( # one of these has to be eligible...
$HTML::DOM::_TreeBuilder::canTighten{$tag}
or (( @$sibs == 1 )
? # WS is leftmost -- so parent matters
$HTML::DOM::_TreeBuilder::canTighten{ $par->{'_tag'} }
: # WS is after another node -- it matters
( ref $sibs->[-2]
and
$HTML::DOM::_TreeBuilder::canTighten{ $sibs->[-2]
{'_tag'} }
)
)
)
and !$par->is_inside( 'pre', 'xmp', 'textarea', 'plaintext' )
# we're clear
)
{
pop @$sibs;
print $indent, "Popping a preceding all-WS node\n" if DEBUG;
}
}
$self->insert_element($e) unless $already_inserted;
if (DEBUG) {
if ( $self->{'_pos'} ) {
print $indent, "(Current lineage of pos: \U$tag\E under ",
join(
'/',
reverse(
# $self->{'_pos'}{'_tag'}, # don't list myself!
$self->{'_pos'}->lineage_tag_names
)
),
".)\n";
}
else {
print $indent, "(Pos points nowhere!?)\n";
}
}
unless ( ( $self->{'_pos'} || '' ) eq $e ) {
# if it's an empty element -- i.e., if it didn't change the _pos
&{ $self->{"_tweak_$tag"}
|| $self->{'_tweak_*'}
|| return $e }( map $_, $e, $tag, $self )
; # make a list so the user can't clobber
}
return $e;
}
}
#==========================================================================
{
my $indent;
sub end {
return if $_[0]{'_stunted'};
# Either: Acccept an end-tag signal from HTML::Parser
# Or: Method for closing currently open elements in some fairly complex
# way, as used by other methods in this class.
my ( $self, $tag, @stop ) = @_;
if ( $tag eq 'x-html' ) {
print "Ignoring close-x-html tag.\n" if DEBUG;
# inserted by some lame code-generators.
return;
}
unless ( ref($tag) or $tag =~ m/^[-_a-zA-Z0-9:%]+$/s ) {
DEBUG and print "End-tag name $tag is no good. Skipping.\n";
return;
# This avoids having Element's new() throw an exception.
}
# This method accepts two calling formats:
# 1) from Parser: $self->end('tag_name', 'origtext')
# in which case we shouldn't mistake origtext as a blocker tag
# 2) from myself: $self->end(\q{tagname1}, 'blk1', ... )
# from myself: $self->end(['tagname1', 'tagname2'], 'blk1', ... )
# End the specified tag, but don't move above any of the blocker tags.
# The tag can also be a reference to an array. Terminate the first
# tag found.
my $ptag = ( my $p = $self->{'_pos'} || $self )->{'_tag'};
# $p and $ptag are sort-of stratch
if ( ref($tag) ) {
# First param is a ref of one sort or another --
# THE CALL IS COMING FROM INSIDE THE HOUSE!
$tag = $$tag if ref($tag) eq 'SCALAR';
# otherwise it's an arrayref.
}
else {
# the call came from Parser -- just ignore origtext
# except in a table ignore unmatched table tags RT #59980
@stop = $tag =~ /^t[hdr]\z/ ? 'table' : ();
}
#my($indent);
if (DEBUG) {
# optimization -- don't figure out depth unless we're in debug mode
my @lineage_tags = $p->lineage_tag_names;
$indent = ' ' x ( 1 + @lineage_tags );
# now announce ourselves
print $indent, "Ending ",
ref($tag) ? ( '[', join( ' ', @$tag ), ']' ) : "\U$tag\E",
scalar(@stop)
? ( " no higher than [", join( ' ', @stop ), "]" )
: (), ".\n";
print $indent, " (Current lineage: ", join( '/', @lineage_tags ),
".)\n"
if DEBUG > 1;
if ( DEBUG > 3 ) {
#my(
# $package, $filename, $line, $subroutine,
# $hasargs, $wantarray, $evaltext, $is_require) = caller;
print $indent,
" (Called from ", ( caller(1) )[3], ' line ',
( caller(1) )[2],
")\n";
}
#} else {
# $indent = ' ';
}
# End of if DEBUG
# Now actually do it
my @to_close;
if ( $tag eq '*' ) {
# Special -- close everything up to (but not including) the first
# limiting tag, or return if none found. Somewhat of a special case.
PARENT:
while ( defined $p ) {
$ptag = $p->{'_tag'};
print $indent, " (Looking at $ptag.)\n" if DEBUG > 2;
for (@stop) {
if ( $ptag eq $_ ) {
print $indent,
" (Hit a $_; closing everything up to here.)\n"
if DEBUG > 2;
last PARENT;
}
}
push @to_close, $p;
$p = $p->{'_parent'}; # no match so far? keep moving up
print $indent,
" (Moving on up to ", $p ? $p->{'_tag'} : 'nil', ")\n"
if DEBUG > 1;
}
unless ( defined $p ) { # We never found what we were looking for.
print $indent, " (We never found a limit.)\n" if DEBUG > 1;
return;
}
#print
# $indent,
# " (To close: ", join('/', map $_->tag, @to_close), ".)\n"
# if DEBUG > 4;
# Otherwise update pos and fall thru.
$self->{'_pos'} = $p;
}
elsif ( ref $tag ) {
# Close the first of any of the matching tags, giving up if you hit
# any of the stop-tags.
PARENT:
while ( defined $p ) {
$ptag = $p->{'_tag'};
print $indent, " (Looking at $ptag.)\n" if DEBUG > 2;
for (@$tag) {
if ( $ptag eq $_ ) {
print $indent, " (Closing $_.)\n" if DEBUG > 2;
last PARENT;
}
}
for (@stop) {
if ( $ptag eq $_ ) {
print $indent,
" (Hit a limiting $_ -- bailing out.)\n"
if DEBUG > 1;
return; # so it was all for naught
}
}
push @to_close, $p;
$p = $p->{'_parent'};
}
return unless defined $p; # We went off the top of the tree.
# Otherwise specified element was found; set pos to its parent.
push @to_close, $p;
$self->{'_pos'} = $p->{'_parent'};
}
else {
# Close the first of the specified tag, giving up if you hit
# any of the stop-tags.
while ( defined $p ) {
$ptag = $p->{'_tag'};
print $indent, " (Looking at $ptag.)\n" if DEBUG > 2;
if ( $ptag eq $tag ) {
print $indent, " (Closing $tag.)\n" if DEBUG > 2;
last;
}
for (@stop) {
if ( $ptag eq $_ ) {
print $indent,
" (Hit a limiting $_ -- bailing out.)\n"
if DEBUG > 1;
return; # so it was all for naught
}
}
push @to_close, $p;
$p = $p->{'_parent'};
}
return unless defined $p; # We went off the top of the tree.
# Otherwise specified element was found; set pos to its parent.
push @to_close, $p;
$self->{'_pos'} = $p->{'_parent'};
}
$self->{'_pos'} = undef if $self eq ( $self->{'_pos'} || '' );
print $indent, "(Pos now points to ",
$self->{'_pos'} ? $self->{'_pos'}{'_tag'} : '???', ".)\n"
if DEBUG > 1;
### EXPENSIVE, because has to check that it's not under a pre
### or a CDATA-parent. That's one more method call per end()!
### Might as well just do this at the end of the tree-parse, I guess,
### at which point we'd be parsing top-down, and just not traversing
### under pre's or CDATA-parents.
##
## Take this opportunity to nix any terminal whitespace nodes.
## TODO: consider whether this (plus the logic in start(), above)
## would ever leave any WS nodes in the tree.
## If not, then there's no reason to have eof() call
## delete_ignorable_whitespace on the tree, is there?
##
#if(@to_close and $self->{'_tighten'} and !$self->{'_ignore_text'} and
# ! $to_close[-1]->is_inside('pre', keys %HTML::Tagset::isCDATA_Parent)
#) { # if tightenable
# my($children, $e_tag);
# foreach my $e (reverse @to_close) { # going top-down
# last if 'pre' eq ($e_tag = $e->{'_tag'}) or
# $HTML::Tagset::isCDATA_Parent{$e_tag};
#
# if(
# $children = $e->{'_content'}
# and @$children # has children
# and !ref($children->[-1])
# and $children->[-1] =~ m<^\s+$>s # last node is all-WS
# and
# (
# # has a tightable parent:
# $HTML::DOM::_TreeBuilder::canTighten{ $e_tag }
# or
# ( # has a tightenable left sibling:
# @$children > 1 and
# ref($children->[-2])
# and $HTML::DOM::_TreeBuilder::canTighten{ $children->[-2]{'_tag'} }
# )
# )
# ) {
# pop @$children;
# #print $indent, "Popping a terminal WS node from ", $e->{'_tag'},
# # " (", $e->address, ") while exiting.\n" if DEBUG;
# }
# }
#}
foreach my $e (@to_close) {
# Call the applicable callback, if any
$ptag = $e->{'_tag'};
&{ $self->{"_tweak_$ptag"}
|| $self->{'_tweak_*'}
|| next }( map $_, $e, $ptag, $self );
print $indent, "Back from tweaking.\n" if DEBUG;
last
if $self->{ '_stunted'
}; # in case one of the handlers called stunt
}
return @to_close;
}
}
#==========================================================================
{
my ( $indent, $nugget );
sub text {
return if $_[0]{'_stunted'};
# Accept a "here's a text token" signal from HTML::Parser.
my ( $self, $text, $is_cdata ) = @_;
# the >3.0 versions of Parser may pass a cdata node.
# Thanks to Gisle Aas for pointing this out.
return unless length $text; # I guess that's always right
my $ignore_text = $self->{'_ignore_text'};
my $no_space_compacting = $self->{'_no_space_compacting'};
my $no_expand_entities = $self->{'_no_expand_entities'};
my $pos = $self->{'_pos'} || $self;
HTML::Entities::decode($text)
unless $ignore_text
|| $is_cdata
|| $HTML::Tagset::isCDATA_Parent{ $pos->{'_tag'} }
|| $no_expand_entities;
#my($indent, $nugget);
if (DEBUG) {
# optimization -- don't figure out depth unless we're in debug mode
my @lineage_tags = $pos->lineage_tag_names;
$indent = ' ' x ( 1 + @lineage_tags );
$nugget
= ( length($text) <= 25 )
? $text
: ( substr( $text, 0, 25 ) . '...' );
$nugget =~ s<([\x00-\x1F])>
<'\\x'.(unpack("H2",$1))>eg;
print $indent, "Proposing a new text node ($nugget) under ",
join( '/', reverse( $pos->{'_tag'}, @lineage_tags ) )
|| 'Root',
".\n";
#} else {
# $indent = ' ';
}
my $ptag;
if ($HTML::Tagset::isCDATA_Parent{ $ptag = $pos->{'_tag'} }
#or $pos->is_inside('pre')
or $pos->is_inside( 'pre', 'textarea' )
)
{
return if $ignore_text;
$pos->push_content($text);
}
else {
# return unless $text =~ /\S/; # This is sometimes wrong
if ( !$self->{'_implicit_tags'} || $text !~ /[^\n\r\f\t ]/ ) {
# don't change anything
}
elsif ( $ptag eq 'head' or $ptag eq 'noframes' ) {
if ( $self->{'_implicit_body_p_tag'} ) {
print $indent,
" * Text node under \U$ptag\E closes \U$ptag\E, implicates BODY and P.\n"
if DEBUG > 1;
$self->end( \$ptag );
$pos = $self->{'_body'}
? ( $self->{'_pos'}
= $self->{'_body'} ) # expected case
: $self->insert_element( 'body', 1 );
$pos = $self->insert_element( 'p', 1 );
}
else {
print $indent,
" * Text node under \U$ptag\E closes, implicates BODY.\n"
if DEBUG > 1;
$self->end( \$ptag );
$pos = $self->{'_body'}
? ( $self->{'_pos'}
= $self->{'_body'} ) # expected case
: $self->insert_element( 'body', 1 );
}
}
elsif ( $ptag eq 'html' ) {
if ( $self->{'_implicit_body_p_tag'} ) {
print $indent,
" * Text node under HTML implicates BODY and P.\n"
if DEBUG > 1;
$pos = $self->{'_body'}
? ( $self->{'_pos'}
= $self->{'_body'} ) # expected case
: $self->insert_element( 'body', 1 );
$pos = $self->insert_element( 'p', 1 );
}
else {
print $indent,
" * Text node under HTML implicates BODY.\n"
if DEBUG > 1;
$pos = $self->{'_body'}
? ( $self->{'_pos'}
= $self->{'_body'} ) # expected case
: $self->insert_element( 'body', 1 );
#print "POS is $pos, ", $pos->{'_tag'}, "\n";
}
}
elsif ( $ptag eq 'body' ) {
if ( $self->{'_implicit_body_p_tag'} ) {
print $indent, " * Text node under BODY implicates P.\n"
if DEBUG > 1;
$pos = $self->insert_element( 'p', 1 );
}
}
elsif ( $ptag eq 'table' ) {
print $indent,
" * Text node under TABLE implicates TR and TD.\n"
if DEBUG > 1;
$self->insert_element( 'tr', 1 );
$pos = $self->insert_element( 'td', 1 );
# double whammy!
}
elsif ( $ptag eq 'tr' ) {
print $indent, " * Text node under TR implicates TD.\n"
if DEBUG > 1;
$pos = $self->insert_element( 'td', 1 );
}
# elsif (
# # $ptag eq 'li' ||
# # $ptag eq 'dd' ||
# $ptag eq 'form') {
# $pos = $self->insert_element('p', 1);
#}
# Whatever we've done above should have had the side
# effect of updating $self->{'_pos'}
#print "POS is now $pos, ", $pos->{'_tag'}, "\n";
return if $ignore_text;
$text =~ s/[\n\r\f\t ]+/ /g # canonical space
unless $no_space_compacting;
print $indent, " (Attaching text node ($nugget) under ",
# was: $self->{'_pos'} ? $self->{'_pos'}{'_tag'} : $self->{'_tag'},
$pos->{'_tag'}, ").\n"
if DEBUG > 1;
$pos->push_content($text);
}
&{ $self->{'_tweak_~text'} || return }( $text, $pos,
$pos->{'_tag'} . '' );
# Note that this is very exceptional -- it doesn't fall back to
# _tweak_*, and it gives its tweak different arguments.
return;
}
}
#==========================================================================
# TODO: test whether comment(), declaration(), and process(), do the right
# thing as far as tightening and whatnot.
# Also, currently, doctypes and comments that appear before head or body
# show up in the tree in the wrong place. Something should be done about
# this. Tricky. Maybe this whole business of pre-making the body and
# whatnot is wrong.
sub comment {
return if $_[0]{'_stunted'};
# Accept a "here's a comment" signal from HTML::Parser.
my ( $self, $text ) = @_;
my $pos = $self->{'_pos'} || $self;
return
unless $self->{'_store_comments'}
|| $HTML::Tagset::isCDATA_Parent{ $pos->{'_tag'} };
if (DEBUG) {
my @lineage_tags = $pos->lineage_tag_names;
my $indent = ' ' x ( 1 + @lineage_tags );
my $nugget
= ( length($text) <= 25 )
? $text
: ( substr( $text, 0, 25 ) . '...' );
$nugget =~ s<([\x00-\x1F])>
<'\\x'.(unpack("H2",$1))>eg;
print $indent, "Proposing a Comment ($nugget) under ",
join( '/', reverse( $pos->{'_tag'}, @lineage_tags ) ) || 'Root',
".\n";
}
( my $e = $self->element_class->new('~comment') )->{'text'} = $text;
$pos->push_content($e);
++( $self->{'_element_count'} );
&{ $self->{'_tweak_~comment'}
|| $self->{'_tweak_*'}
|| return $e }( map $_, $e, '~comment', $self );
return $e;
}
sub declaration {
return if $_[0]{'_stunted'};
# Accept a "here's a markup declaration" signal from HTML::Parser.
my ( $self, $text ) = @_;
my $pos = $self->{'_pos'} || $self;
if (DEBUG) {
my @lineage_tags = $pos->lineage_tag_names;
my $indent = ' ' x ( 1 + @lineage_tags );
my $nugget
= ( length($text) <= 25 )
? $text
: ( substr( $text, 0, 25 ) . '...' );
$nugget =~ s<([\x00-\x1F])>
<'\\x'.(unpack("H2",$1))>eg;
print $indent, "Proposing a Declaration ($nugget) under ",
join( '/', reverse( $pos->{'_tag'}, @lineage_tags ) ) || 'Root',
".\n";
}
( my $e = $self->element_class->new('~declaration') )->{'text'} = $text;
$self->{_decl} = $e;
return $e;
}
#==========================================================================
sub process {
return if $_[0]{'_stunted'};
# Accept a "here's a PI" signal from HTML::Parser.
return unless $_[0]->{'_store_pis'};
my ( $self, $text ) = @_;
my $pos = $self->{'_pos'} || $self;
if (DEBUG) {
my @lineage_tags = $pos->lineage_tag_names;
my $indent = ' ' x ( 1 + @lineage_tags );
my $nugget
= ( length($text) <= 25 )
? $text
: ( substr( $text, 0, 25 ) . '...' );
$nugget =~ s<([\x00-\x1F])>
<'\\x'.(unpack("H2",$1))>eg;
print $indent, "Proposing a PI ($nugget) under ",
join( '/', reverse( $pos->{'_tag'}, @lineage_tags ) ) || 'Root',
".\n";
}
( my $e = $self->element_class->new('~pi') )->{'text'} = $text;
$pos->push_content($e);
++( $self->{'_element_count'} );
&{ $self->{'_tweak_~pi'} || $self->{'_tweak_*'} || return $e }( map $_,
$e, '~pi', $self );
return $e;
}
#==========================================================================
#When you call $tree->parse_file($filename), and the
#tree's ignore_ignorable_whitespace attribute is on (as it is
#by default), HTML::DOM::_TreeBuilder's logic will manage to avoid
#creating some, but not all, nodes that represent ignorable
#whitespace. However, at the end of its parse, it traverses the
#tree and deletes any that it missed. (It does this with an
#around-method around HTML::Parser's eof method.)
#
#However, with $tree->parse($content), the cleanup-traversal step
#doesn't happen automatically -- so when you're done parsing all
#content for a document (regardless of whether $content is the only
#bit, or whether it's just another chunk of content you're parsing into
#the tree), call $tree->eof() to signal that you're at the end of the
#text you're inputting to the tree. Besides properly cleaning any bits
#of ignorable whitespace from the tree, this will also ensure that
#HTML::Parser's internal buffer is flushed.
sub eof {
# Accept an "end-of-file" signal from HTML::Parser, or thrown by the user.
return if $_[0]->{'_done'}; # we've already been here
return $_[0]->SUPER::eof() if $_[0]->{'_stunted'};
my $x = $_[0];
print "EOF received.\n" if DEBUG;
my (@rv);
if (wantarray) {
# I don't think this makes any difference for this particular
# method, but let's be scrupulous, for once.
@rv = $x->SUPER::eof();
}
else {
$rv[0] = $x->SUPER::eof();
}
$x->end('html') unless $x eq ( $x->{'_pos'} || $x );
# That SHOULD close everything, and will run the appropriate tweaks.
# We /could/ be running under some insane mode such that there's more
# than one HTML element, but really, that's just insane to do anyhow.
unless ( $x->{'_implicit_tags'} ) {
# delete those silly implicit head and body in case we put
# them there in implicit tags mode
foreach my $node ( $x->{'_head'}, $x->{'_body'} ) {
$node->replace_with_content
if defined $node
and ref $node
and $node->{'_implicit'}
and $node->{'_parent'};
# I think they should be empty anyhow, since the only
# logic that'd insert under them can apply only, I think,
# in the case where _implicit_tags is on
}
# this may still leave an implicit 'html' at the top, but there's
# nothing we can do about that, is there?
}
$x->delete_ignorable_whitespace()
# this's why we trap this -- an after-method
if $x->{'_tighten'} and !$x->{'_ignore_text'};
$x->{'_done'} = 1;
return @rv if wantarray;
return $rv[0];
}
#==========================================================================
# TODO: document
sub stunt {
my $self = $_[0];
print "Stunting the tree.\n" if DEBUG;
$self->{'_done'} = 1;
if ( $HTML::Parser::VERSION < 3 ) {
#This is a MEAN MEAN HACK. And it works most of the time!
$self->{'_buf'} = '';
my $fh = *HTML::Parser::F{IO};
# the local'd FH used by parse_file loop
if ( defined $fh ) {
print "Closing Parser's filehandle $fh\n" if DEBUG;
close($fh);
}
# But if they called $tree->parse_file($filehandle)
# or $tree->parse_file(*IO), then there will be no *HTML::Parser::F{IO}
# to close. Ahwell. Not a problem for most users these days.
}
else {
$self->SUPER::eof();
# Under 3+ versions, calling eof from inside a parse will abort the
# parse / parse_file
}
# In the off chance that the above didn't work, we'll throw
# this flag to make any future events be no-ops.
$self->stunted(1);
return;
}
# TODO: document
sub stunted { shift->_elem( '_stunted', @_ ); }
sub done { shift->_elem( '_done', @_ ); }
#==========================================================================
sub delete {
# Override Element's delete method.
# This does most, if not all, of what Element's delete does anyway.
# Deletes content, including content in some special attributes.
# But doesn't empty out the hash.
$_[0]->{'_element_count'} = 1; # never hurts to be scrupulously correct
delete @{ $_[0] }{ '_body', '_head', '_pos' };
for (
@{ delete( $_[0]->{'_content'} ) || [] }, # all/any content
# delete @{$_[0]}{'_body', '_head', '_pos'}
# ...and these, in case these elements don't appear in the
# content, which is possible. If they did appear (as they
# usually do), then calling $_->delete on them again is harmless.
# I don't think that's such a hot idea now. Thru creative reattachment,
# those could actually now point to elements in OTHER trees (which we do
# NOT want to delete!).
## Reasoned out:
# If these point to elements not in the content list of any element in this
# tree, but not in the content list of any element in any OTHER tree, then
# just deleting these will make their refcounts hit zero.
# If these point to elements in the content lists of elements in THIS tree,
# then we'll get to deleting them when we delete from the top.
# If these point to elements in the content lists of elements in SOME OTHER
# tree, then they're not to be deleted.
)
{
$_->delete
if defined $_ and ref $_ # Make sure it's an object.
and $_ ne $_[0]; # And avoid hitting myself, just in case!
}
$_[0]->detach if $_[0]->{'_parent'} and $_[0]->{'_parent'}{'_content'};
# An 'html' element having a parent is quite unlikely.
return;
}
sub tighten_up { # legacy
shift->delete_ignorable_whitespace(@_);
}
sub elementify {
# Rebless this object down into the normal element class.
my $self = $_[0];
my $to_class = $self->element_class;
delete @{$self}{
grep {
;
length $_ and substr( $_, 0, 1 ) eq '_'
# The private attributes that we'll retain:
and $_ ne '_tag'
and $_ ne '_parent'
and $_ ne '_content'
and $_ ne '_implicit'
and $_ ne '_pos'
and $_ ne '_element_class'
} keys %$self
};
bless $self, $to_class; # Returns the same object we were fed
}
sub element_class {
return 'HTML::DOM::_Element' if not ref $_[0];
return $_[0]->{_element_class} || 'HTML::DOM::_Element';
}
#--------------------------------------------------------------------------
sub guts {
my @out;
my @stack = ( $_[0] );
my $destructive = $_[1];
my $this;
while (@stack) {
$this = shift @stack;
if ( !ref $this ) {
push @out, $this; # yes, it can include text nodes
}
elsif ( !$this->{'_implicit'} ) {
push @out, $this;
delete $this->{'_parent'} if $destructive;
}
else {
# it's an implicit node. Delete it and recurse
delete $this->{'_parent'} if $destructive;
unshift @stack,
@{
( $destructive
? delete( $this->{'_content'} )
: $this->{'_content'}
)
|| []
};
}
}
# Doesn't call a real $root->delete on the (when implicit) root,
# but I don't think it needs to.
return @out if wantarray; # one simple normal case.
return unless @out;
return $out[0] if @out == 1 and ref( $out[0] );
my $x = HTML::DOM::_Element->new( 'div', '_implicit' => 1 );
$x->push_content(@out);
return $x;
}
sub disembowel { $_[0]->guts(1) }
#--------------------------------------------------------------------------
1;
__END__
Copyright 2K16 - 2K18 Indonesian Hacker Rulez
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