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| Current File : //usr/local/lib/perl5/site_perl/5.8.9/mach/XML/LibXML.pm |
# $Id: LibXML.pm 760 2008-11-11 19:30:27Z pajas $
package XML::LibXML;
use strict;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS
$skipDTD $skipXMLDeclaration $setTagCompression
$MatchCB $ReadCB $OpenCB $CloseCB
);
use Carp;
use XML::LibXML::Common qw(:encoding :libxml);
use constant XML_XMLNS_NS => 'http://www.w3.org/2000/xmlns/';
use constant XML_XML_NS => 'http://www.w3.org/XML/1998/namespace';
use XML::LibXML::Error;
use XML::LibXML::NodeList;
use XML::LibXML::XPathContext;
use IO::Handle; # for FH reads called as methods
BEGIN {
$VERSION = "1.69"; # VERSION TEMPLATE: DO NOT CHANGE
require Exporter;
require DynaLoader;
@ISA = qw(DynaLoader Exporter);
use vars qw($__PROXY_NODE_REGISTRY $__threads_shared $__PROXY_NODE_REGISTRY_MUTEX $__loaded);
#-------------------------------------------------------------------------#
# export information #
#-------------------------------------------------------------------------#
%EXPORT_TAGS = (
all => [qw(
XML_ELEMENT_NODE
XML_ATTRIBUTE_NODE
XML_TEXT_NODE
XML_CDATA_SECTION_NODE
XML_ENTITY_REF_NODE
XML_ENTITY_NODE
XML_PI_NODE
XML_COMMENT_NODE
XML_DOCUMENT_NODE
XML_DOCUMENT_TYPE_NODE
XML_DOCUMENT_FRAG_NODE
XML_NOTATION_NODE
XML_HTML_DOCUMENT_NODE
XML_DTD_NODE
XML_ELEMENT_DECL
XML_ATTRIBUTE_DECL
XML_ENTITY_DECL
XML_NAMESPACE_DECL
XML_XINCLUDE_END
XML_XINCLUDE_START
encodeToUTF8
decodeFromUTF8
XML_XMLNS_NS
XML_XML_NS
)],
libxml => [qw(
XML_ELEMENT_NODE
XML_ATTRIBUTE_NODE
XML_TEXT_NODE
XML_CDATA_SECTION_NODE
XML_ENTITY_REF_NODE
XML_ENTITY_NODE
XML_PI_NODE
XML_COMMENT_NODE
XML_DOCUMENT_NODE
XML_DOCUMENT_TYPE_NODE
XML_DOCUMENT_FRAG_NODE
XML_NOTATION_NODE
XML_HTML_DOCUMENT_NODE
XML_DTD_NODE
XML_ELEMENT_DECL
XML_ATTRIBUTE_DECL
XML_ENTITY_DECL
XML_NAMESPACE_DECL
XML_XINCLUDE_END
XML_XINCLUDE_START
)],
encoding => [qw(
encodeToUTF8
decodeFromUTF8
)],
ns => [qw(
XML_XMLNS_NS
XML_XML_NS
)],
);
@EXPORT_OK = (
@{$EXPORT_TAGS{all}},
);
@EXPORT = (
@{$EXPORT_TAGS{all}},
);
#-------------------------------------------------------------------------#
# initialization of the global variables #
#-------------------------------------------------------------------------#
$skipDTD = 0;
$skipXMLDeclaration = 0;
$setTagCompression = 0;
$MatchCB = undef;
$ReadCB = undef;
$OpenCB = undef;
$CloseCB = undef;
# if ($threads::threads) {
# our $__THREADS_TID = 0;
# eval q{
# use threads::shared;
# our $__PROXY_NODE_REGISTRY_MUTEX :shared = 0;
# };
# die $@ if $@;
# }
#-------------------------------------------------------------------------#
# bootstrapping #
#-------------------------------------------------------------------------#
bootstrap XML::LibXML $VERSION;
undef &AUTOLOAD;
} # BEGIN
sub import {
my $package=shift;
if (grep /^:threads_shared$/, @_) {
require threads;
if (!defined($__threads_shared)) {
if (INIT_THREAD_SUPPORT()) {
eval q{
use threads::shared;
share($__PROXY_NODE_REGISTRY_MUTEX);
};
if ($@) { # something went wrong
DISABLE_THREAD_SUPPORT(); # leave the library in a usable state
die $@; # and die
}
$__PROXY_NODE_REGISTRY = XML::LibXML::HashTable->new();
$__threads_shared=1;
} else {
croak("XML::LibXML or Perl compiled without ithread support!");
}
} elsif (!$__threads_shared) {
croak("XML::LibXML already loaded without thread support. Too late to enable thread support!");
}
} elsif (defined $XML::LibXML::__loaded) {
$__threads_shared=0 if not defined $__threads_shared;
}
__PACKAGE__->export_to_level(1,$package,grep !/^:threads(_shared)?$/,@_);
}
sub threads_shared_enabled {
return $__threads_shared ? 1 : 0;
}
# if ($threads::threads) {
# our $__PROXY_NODE_REGISTRY = XML::LibXML::HashTable->new();
# }
#-------------------------------------------------------------------------#
# test exact version (up to patch-level) #
#-------------------------------------------------------------------------#
{
my ($runtime_version) = LIBXML_RUNTIME_VERSION() =~ /^(\d+)/;
if ( $runtime_version < LIBXML_VERSION ) {
warn "Warning: XML::LibXML compiled against libxml2 ".LIBXML_VERSION.
", but runtime libxml2 is older $runtime_version\n";
}
}
#-------------------------------------------------------------------------#
# parser constructor #
#-------------------------------------------------------------------------#
sub new {
my $class = shift;
my %options = @_;
if ( not exists $options{XML_LIBXML_KEEP_BLANKS} ) {
$options{XML_LIBXML_KEEP_BLANKS} = 1;
}
if ( defined $options{catalog} ) {
$class->load_catalog( $options{catalog} );
delete $options{catalog};
}
my $self = bless \%options, $class;
if ( defined $options{Handler} ) {
$self->set_handler( $options{Handler} );
}
$self->{XML_LIBXML_EXT_DTD} = 1;
$self->{_State_} = 0;
return $self;
}
#-------------------------------------------------------------------------#
# Threads support methods #
#-------------------------------------------------------------------------#
# threads doc says CLONE's API may change in future, which would break
# an XS method prototype
sub CLONE {
if ($XML::LibXML::__threads_shared) {
XML::LibXML::_CLONE( $_[0] );
}
}
sub CLONE_SKIP {
return $XML::LibXML::__threads_shared ? 0 : 1;
}
sub __proxy_registry {
my ($class)=caller;
die "This version of $class uses API of XML::LibXML 1.66 which is not compatible with XML::LibXML $VERSION. Please upgrade $class!\n";
}
#-------------------------------------------------------------------------#
# DOM Level 2 document constructor #
#-------------------------------------------------------------------------#
sub createDocument {
my $self = shift;
if (!@_ or $_[0] =~ m/^\d\.\d$/) {
# for backward compatibility
return XML::LibXML::Document->new(@_);
}
else {
# DOM API: createDocument(namespaceURI, qualifiedName, doctype?)
my $doc = XML::LibXML::Document-> new;
my $el = $doc->createElementNS(shift, shift);
$doc->setDocumentElement($el);
$doc->setExternalSubset(shift) if @_;
return $doc;
}
}
#-------------------------------------------------------------------------#
# callback functions #
#-------------------------------------------------------------------------#
sub input_callbacks {
my $self = shift;
my $icbclass = shift;
if ( defined $icbclass ) {
$self->{XML_LIBXML_CALLBACK_STACK} = $icbclass;
}
return $self->{XML_LIBXML_CALLBACK_STACK};
}
sub match_callback {
my $self = shift;
if ( ref $self ) {
if ( scalar @_ ) {
$self->{XML_LIBXML_MATCH_CB} = shift;
$self->{XML_LIBXML_CALLBACK_STACK} = undef;
}
return $self->{XML_LIBXML_MATCH_CB};
}
else {
$MatchCB = shift if scalar @_;
return $MatchCB;
}
}
sub read_callback {
my $self = shift;
if ( ref $self ) {
if ( scalar @_ ) {
$self->{XML_LIBXML_READ_CB} = shift;
$self->{XML_LIBXML_CALLBACK_STACK} = undef;
}
return $self->{XML_LIBXML_READ_CB};
}
else {
$ReadCB = shift if scalar @_;
return $ReadCB;
}
}
sub close_callback {
my $self = shift;
if ( ref $self ) {
if ( scalar @_ ) {
$self->{XML_LIBXML_CLOSE_CB} = shift;
$self->{XML_LIBXML_CALLBACK_STACK} = undef;
}
return $self->{XML_LIBXML_CLOSE_CB};
}
else {
$CloseCB = shift if scalar @_;
return $CloseCB;
}
}
sub open_callback {
my $self = shift;
if ( ref $self ) {
if ( scalar @_ ) {
$self->{XML_LIBXML_OPEN_CB} = shift;
$self->{XML_LIBXML_CALLBACK_STACK} = undef;
}
return $self->{XML_LIBXML_OPEN_CB};
}
else {
$OpenCB = shift if scalar @_;
return $OpenCB;
}
}
sub callbacks {
my $self = shift;
if ( ref $self ) {
if (@_) {
my ($match, $open, $read, $close) = @_;
@{$self}{qw(XML_LIBXML_MATCH_CB XML_LIBXML_OPEN_CB XML_LIBXML_READ_CB XML_LIBXML_CLOSE_CB)} = ($match, $open, $read, $close);
$self->{XML_LIBXML_CALLBACK_STACK} = undef;
}
else {
return @{$self}{qw(XML_LIBXML_MATCH_CB XML_LIBXML_OPEN_CB XML_LIBXML_READ_CB XML_LIBXML_CLOSE_CB)};
}
}
else {
if (@_) {
( $MatchCB, $OpenCB, $ReadCB, $CloseCB ) = @_;
}
else {
return ( $MatchCB, $OpenCB, $ReadCB, $CloseCB );
}
}
}
#-------------------------------------------------------------------------#
# member variable manipulation #
#-------------------------------------------------------------------------#
sub validation {
my $self = shift;
$self->{XML_LIBXML_VALIDATION} = shift if scalar @_;
return $self->{XML_LIBXML_VALIDATION};
}
sub recover {
my $self = shift;
$self->{XML_LIBXML_RECOVER} = shift if scalar @_;
return $self->{XML_LIBXML_RECOVER};
}
sub recover_silently {
my $self = shift;
my $arg = shift;
(($arg == 1) ? $self->recover(2) : $self->recover($arg)) if defined($arg);
return ($self->recover() == 2) ? 1 : 0;
}
sub expand_entities {
my $self = shift;
$self->{XML_LIBXML_EXPAND_ENTITIES} = shift if scalar @_;
return $self->{XML_LIBXML_EXPAND_ENTITIES};
}
sub keep_blanks {
my $self = shift;
$self->{XML_LIBXML_KEEP_BLANKS} = shift if scalar @_;
return $self->{XML_LIBXML_KEEP_BLANKS};
}
sub pedantic_parser {
my $self = shift;
$self->{XML_LIBXML_PEDANTIC} = shift if scalar @_;
return $self->{XML_LIBXML_PEDANTIC};
}
sub line_numbers {
my $self = shift;
$self->{XML_LIBXML_LINENUMBERS} = shift if scalar @_;
return $self->{XML_LIBXML_LINENUMBERS};
}
sub no_network {
my $self = shift;
$self->{XML_LIBXML_NONET} = shift if scalar @_;
return $self->{XML_LIBXML_NONET};
}
sub load_ext_dtd {
my $self = shift;
$self->{XML_LIBXML_EXT_DTD} = shift if scalar @_;
return $self->{XML_LIBXML_EXT_DTD};
}
sub complete_attributes {
my $self = shift;
$self->{XML_LIBXML_COMPLETE_ATTR} = shift if scalar @_;
return $self->{XML_LIBXML_COMPLETE_ATTR};
}
sub expand_xinclude {
my $self = shift;
$self->{XML_LIBXML_EXPAND_XINCLUDE} = shift if scalar @_;
return $self->{XML_LIBXML_EXPAND_XINCLUDE};
}
sub base_uri {
my $self = shift;
$self->{XML_LIBXML_BASE_URI} = shift if scalar @_;
return $self->{XML_LIBXML_BASE_URI};
}
sub gdome_dom {
my $self = shift;
$self->{XML_LIBXML_GDOME} = shift if scalar @_;
return $self->{XML_LIBXML_GDOME};
}
sub clean_namespaces {
my $self = shift;
$self->{XML_LIBXML_NSCLEAN} = shift if scalar @_;
return $self->{XML_LIBXML_NSCLEAN};
}
#-------------------------------------------------------------------------#
# set the optional SAX(2) handler #
#-------------------------------------------------------------------------#
sub set_handler {
my $self = shift;
if ( defined $_[0] ) {
$self->{HANDLER} = $_[0];
$self->{SAX_ELSTACK} = [];
$self->{SAX} = {State => 0};
}
else {
# undef SAX handling
$self->{SAX_ELSTACK} = [];
delete $self->{HANDLER};
delete $self->{SAX};
}
}
#-------------------------------------------------------------------------#
# helper functions #
#-------------------------------------------------------------------------#
sub _auto_expand {
my ( $self, $result, $uri ) = @_;
$result->setBaseURI( $uri ) if defined $uri;
if ( defined $self->{XML_LIBXML_EXPAND_XINCLUDE}
and $self->{XML_LIBXML_EXPAND_XINCLUDE} == 1 ) {
$self->{_State_} = 1;
eval { $self->processXIncludes($result); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
$self->_cleanup_callbacks();
$result = undef;
croak $err;
}
}
return $result;
}
sub _init_callbacks {
my $self = shift;
my $icb = $self->{XML_LIBXML_CALLBACK_STACK};
unless ( defined $icb ) {
$self->{XML_LIBXML_CALLBACK_STACK} = XML::LibXML::InputCallback->new();
$icb = $self->{XML_LIBXML_CALLBACK_STACK};
}
my $mcb = $self->match_callback();
my $ocb = $self->open_callback();
my $rcb = $self->read_callback();
my $ccb = $self->close_callback();
if ( defined $mcb and defined $ocb and defined $rcb and defined $ccb ) {
$icb->register_callbacks( [$mcb, $ocb, $rcb, $ccb] );
}
$icb->init_callbacks();
}
sub _cleanup_callbacks {
my $self = shift;
$self->{XML_LIBXML_CALLBACK_STACK}->cleanup_callbacks();
my $mcb = $self->match_callback();
$self->{XML_LIBXML_CALLBACK_STACK}->unregister_callbacks( [$mcb] );
}
sub __read {
read($_[0], $_[1], $_[2]);
}
sub __write {
if ( ref( $_[0] ) ) {
$_[0]->write( $_[1], $_[2] );
}
else {
$_[0]->write( $_[1] );
}
}
# currently this is only used in the XInlcude processor
# but in the future, all parsing functions should turn to
# the new libxml2 parsing API internally and this will
# become handy
sub _parser_options {
my ($self,$opts)=@_;
$opts = {} unless ref $opts;
my $flags = 0;
$flags |= 1 if exists $opts->{recover} ? $opts->{recover} : $self->recover;
$flags |= 2 if exists $opts->{expand_entities} ? $opts->{expand_entities} : $self->expand_entities;
$flags |= 4 if exists $opts->{load_ext_dtd} ? $opts->{load_ext_dtd} : $self->load_ext_dtd;
$flags |= 8 if exists $opts->{complete_attributes} ? $opts->{complete_attributes} : $self->complete_attributes;
$flags |= 16 if exists $opts->{validation} ? $opts->{validation} : $self->validation;
$flags |= 32 if $opts->{suppress_errors};
$flags |= 64 if $opts->{suppress_warnings};
$flags |= 128 if exists $opts->{pedantic_parser} ? $opts->{pedantic_parser} : $self->pedantic_parser;
$flags |= 256 if exists $opts->{no_blanks} ? $opts->{no_blanks} : !$self->keep_blanks();
$flags |= 1024 if exists $opts->{expand_xinclude} ? $opts->{expand_xinclude} : $self->expand_xinclude;
$flags |= 2048 if exists $opts->{no_network} ? $opts->{no_network} : $self->no_network;
$flags |= 8192 if exists $opts->{clean_namespaces} ? $opts->{clean_namespaces} : $self->clean_namespaces;
$flags |= 16384 if $opts->{no_cdata};
$flags |= 32768 if $opts->{no_xinclude_nodes};
return ($flags);
}
#-------------------------------------------------------------------------#
# parsing functions #
#-------------------------------------------------------------------------#
# all parsing functions handle normal as SAX parsing at the same time.
# note that SAX parsing is handled incomplete! use XML::LibXML::SAX for
# complete parsing sequences
#-------------------------------------------------------------------------#
sub parse_string {
my $self = shift;
croak("parse_string is not a class method! Create a parser object with XML::LibXML->new first!") unless ref $self;
croak("parse already in progress") if $self->{_State_};
unless ( defined $_[0] and length $_[0] ) {
croak("Empty String");
}
$self->{_State_} = 1;
my $result;
$self->_init_callbacks();
if ( defined $self->{SAX} ) {
my $string = shift;
$self->{SAX_ELSTACK} = [];
eval { $result = $self->_parse_sax_string($string); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
}
else {
eval { $result = $self->_parse_string( @_ ); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
$result = $self->_auto_expand( $result, $self->{XML_LIBXML_BASE_URI} );
}
$self->_cleanup_callbacks();
return $result;
}
sub parse_fh {
my $self = shift;
croak("parse_fh is not a class method! Create a parser object with XML::LibXML->new first!") unless ref $self;
croak("parse already in progress") if $self->{_State_};
$self->{_State_} = 1;
my $result;
$self->_init_callbacks();
if ( defined $self->{SAX} ) {
$self->{SAX_ELSTACK} = [];
eval { $self->_parse_sax_fh( @_ ); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
}
else {
eval { $result = $self->_parse_fh( @_ ); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
$result = $self->_auto_expand( $result, $self->{XML_LIBXML_BASE_URI} );
}
$self->_cleanup_callbacks();
return $result;
}
sub parse_file {
my $self = shift;
croak("parse_file is not a class method! Create a parser object with XML::LibXML->new first!") unless ref $self;
croak("parse already in progress") if $self->{_State_};
$self->{_State_} = 1;
my $result;
$self->_init_callbacks();
if ( defined $self->{SAX} ) {
$self->{SAX_ELSTACK} = [];
eval { $self->_parse_sax_file( @_ ); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
}
else {
eval { $result = $self->_parse_file(@_); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
$result = $self->_auto_expand( $result );
}
$self->_cleanup_callbacks();
return $result;
}
sub parse_xml_chunk {
my $self = shift;
# max 2 parameter:
# 1: the chunk
# 2: the encoding of the string
croak("parse_xml_chunk is not a class method! Create a parser object with XML::LibXML->new first!") unless ref $self;
croak("parse already in progress") if $self->{_State_}; my $result;
unless ( defined $_[0] and length $_[0] ) {
croak("Empty String");
}
$self->{_State_} = 1;
$self->_init_callbacks();
if ( defined $self->{SAX} ) {
eval {
$self->_parse_sax_xml_chunk( @_ );
# this is required for XML::GenericChunk.
# in normal case is_filter is not defined, an thus the parsing
# will be terminated. in case of a SAX filter the parsing is not
# finished at that state. therefore we must not reset the parsing
unless ( $self->{IS_FILTER} ) {
$result = $self->{HANDLER}->end_document();
}
};
}
else {
eval { $result = $self->_parse_xml_chunk( @_ ); };
}
$self->_cleanup_callbacks();
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
croak $err;
}
return $result;
}
sub parse_balanced_chunk {
my $self = shift;
$self->_init_callbacks();
my $rv;
eval {
$rv = $self->parse_xml_chunk( @_ );
};
my $err = $@;
$self->_cleanup_callbacks();
if ( $err ) {
chomp $err unless ref $err;
croak $err;
}
return $rv
}
# java style
sub processXIncludes {
my $self = shift;
my $doc = shift;
my $opts = shift;
my $options = $self->_parser_options($opts);
if ( $self->{_State_} != 1 ) {
$self->_init_callbacks();
}
my $rv;
eval {
$rv = $self->_processXIncludes($doc || " ", $options);
};
my $err = $@;
if ( $self->{_State_} != 1 ) {
$self->_cleanup_callbacks();
}
if ( $err ) {
chomp $err unless ref $err;
croak $err;
}
return $rv;
}
# perl style
sub process_xincludes {
my $self = shift;
my $doc = shift;
my $opts = shift;
my $options = $self->_parser_options($opts);
my $rv;
$self->_init_callbacks();
eval {
$rv = $self->_processXIncludes($doc || " ", $options);
};
my $err = $@;
$self->_cleanup_callbacks();
if ( $err ) {
chomp $err unless ref $err;
croak $@;
}
return $rv;
}
#-------------------------------------------------------------------------#
# HTML parsing functions #
#-------------------------------------------------------------------------#
sub _html_options {
my ($self,$opts)=@_;
$opts = {} unless ref $opts;
# return (undef,undef) unless ref $opts;
my $flags = 0;
$flags |= 1 if exists $opts->{recover} ? $opts->{recover} : $self->recover;
$flags |= 32 if $opts->{suppress_errors};
$flags |= 64 if $opts->{suppress_warnings};
$flags |= 128 if exists $opts->{pedantic_parser} ? $opts->{pedantic_parser} : $self->pedantic_parser;
$flags |= 256 if exists $opts->{no_blanks} ? $opts->{no_blanks} : !$self->keep_blanks;
$flags |= 2048 if exists $opts->{no_network} ? $opts->{no_network} : !$self->no_network;
return ($opts->{URI},$opts->{encoding},$flags);
}
sub parse_html_string {
my ($self,$str,$opts) = @_;
croak("parse_html_string is not a class method! Create a parser object with XML::LibXML->new first!") unless ref $self;
croak("parse already in progress") if $self->{_State_};
unless ( defined $str and length $str ) {
croak("Empty String");
}
$self->{_State_} = 1;
my $result;
$self->_init_callbacks();
eval {
$result = $self->_parse_html_string( $str,
$self->_html_options($opts)
);
};
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
$self->_cleanup_callbacks();
return $result;
}
sub parse_html_file {
my ($self,$file,$opts) = @_;
croak("parse_html_file is not a class method! Create a parser object with XML::LibXML->new first!") unless ref $self;
croak("parse already in progress") if $self->{_State_};
$self->{_State_} = 1;
my $result;
$self->_init_callbacks();
eval { $result = $self->_parse_html_file($file,
$self->_html_options($opts)
); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
$self->_cleanup_callbacks();
return $result;
}
sub parse_html_fh {
my ($self,$fh,$opts) = @_;
croak("parse_html_fh is not a class method! Create a parser object with XML::LibXML->new first!") unless ref $self;
croak("parse already in progress") if $self->{_State_};
$self->{_State_} = 1;
my $result;
$self->_init_callbacks();
eval { $result = $self->_parse_html_fh( $fh,
$self->_html_options($opts)
); };
my $err = $@;
$self->{_State_} = 0;
if ($err) {
chomp $err unless ref $err;
$self->_cleanup_callbacks();
croak $err;
}
$self->_cleanup_callbacks();
return $result;
}
#-------------------------------------------------------------------------#
# push parser interface #
#-------------------------------------------------------------------------#
sub init_push {
my $self = shift;
if ( defined $self->{CONTEXT} ) {
delete $self->{CONTEXT};
}
if ( defined $self->{SAX} ) {
$self->{CONTEXT} = $self->_start_push(1);
}
else {
$self->{CONTEXT} = $self->_start_push(0);
}
}
sub push {
my $self = shift;
$self->_init_callbacks();
if ( not defined $self->{CONTEXT} ) {
$self->init_push();
}
eval {
foreach ( @_ ) {
$self->_push( $self->{CONTEXT}, $_ );
}
};
my $err = $@;
$self->_cleanup_callbacks();
if ( $err ) {
chomp $err unless ref $err;
croak $err;
}
}
# this function should be promoted!
# the reason is because libxml2 uses xmlParseChunk() for this purpose!
sub parse_chunk {
my $self = shift;
my $chunk = shift;
my $terminate = shift;
if ( not defined $self->{CONTEXT} ) {
$self->init_push();
}
if ( defined $chunk and length $chunk ) {
$self->_push( $self->{CONTEXT}, $chunk );
}
if ( $terminate ) {
return $self->finish_push();
}
}
sub finish_push {
my $self = shift;
my $restore = shift || 0;
return undef unless defined $self->{CONTEXT};
my $retval;
if ( defined $self->{SAX} ) {
eval {
$self->_end_sax_push( $self->{CONTEXT} );
$retval = $self->{HANDLER}->end_document( {} );
};
}
else {
eval { $retval = $self->_end_push( $self->{CONTEXT}, $restore ); };
}
delete $self->{CONTEXT};
my $err = $@;
if ( $err ) {
chomp $err unless ref $err;
croak( $err );
}
return $retval;
}
1;
#-------------------------------------------------------------------------#
# XML::LibXML::Node Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::Node;
sub CLONE_SKIP {
return $XML::LibXML::__threads_shared ? 0 : 1;
}
sub isSupported {
my $self = shift;
my $feature = shift;
return $self->can($feature) ? 1 : 0;
}
sub getChildNodes { my $self = shift; return $self->childNodes(); }
sub childNodes {
my $self = shift;
my @children = $self->_childNodes();
return wantarray ? @children : XML::LibXML::NodeList->new_from_ref(\@children , 1);
}
sub attributes {
my $self = shift;
my @attr = $self->_attributes();
return wantarray ? @attr : XML::LibXML::NamedNodeMap->new( @attr );
}
sub findnodes {
my ($node, $xpath) = @_;
my @nodes = $node->_findnodes($xpath);
if (wantarray) {
return @nodes;
}
else {
return XML::LibXML::NodeList->new_from_ref(\@nodes, 1);
}
}
sub exists {
my ($node, $xpath) = @_;
my (undef, $value) = $node->_find($xpath,1);
return $value;
}
sub findvalue {
my ($node, $xpath) = @_;
my $res;
$res = $node->find($xpath);
return $res->to_literal->value;
}
sub findbool {
my ($node, $xpath) = @_;
my ($type, @params) = $node->_find($xpath,1);
if ($type) {
return $type->new(@params);
}
return undef;
}
sub find {
my ($node, $xpath) = @_;
my ($type, @params) = $node->_find($xpath,0);
if ($type) {
return $type->new(@params);
}
return undef;
}
sub setOwnerDocument {
my ( $self, $doc ) = @_;
$doc->adoptNode( $self );
}
sub toStringC14N {
my ($self, $comments, $xpath) = (shift, shift, shift);
return $self->_toStringC14N( $comments || 0,
(defined $xpath ? $xpath : undef),
0,
undef );
}
sub toStringEC14N {
my ($self, $comments, $xpath, $inc_prefix_list) = @_;
if (defined($inc_prefix_list) and !UNIVERSAL::isa($inc_prefix_list,'ARRAY')) {
croak("toStringEC14N: inclusive_prefix_list must be undefined or ARRAY");
}
return $self->_toStringC14N( $comments || 0,
(defined $xpath ? $xpath : undef),
1,
(defined $inc_prefix_list ? $inc_prefix_list : undef));
}
*serialize_c14n = \&toStringC14N;
*serialize_exc_c14n = \&toStringEC14N;
1;
#-------------------------------------------------------------------------#
# XML::LibXML::Document Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::Document;
use vars qw(@ISA);
@ISA = ('XML::LibXML::Node');
sub actualEncoding {
my $doc = shift;
my $enc = $doc->encoding;
return (defined $enc and length $enc) ? $enc : 'UTF-8';
}
sub setDocumentElement {
my $doc = shift;
my $element = shift;
my $oldelem = $doc->documentElement;
if ( defined $oldelem ) {
$doc->removeChild($oldelem);
}
$doc->_setDocumentElement($element);
}
sub toString {
my $self = shift;
my $flag = shift;
my $retval = "";
if ( defined $XML::LibXML::skipXMLDeclaration
and $XML::LibXML::skipXMLDeclaration == 1 ) {
foreach ( $self->childNodes ){
next if $_->nodeType == XML::LibXML::XML_DTD_NODE()
and $XML::LibXML::skipDTD;
$retval .= $_->toString;
}
}
else {
$flag ||= 0 unless defined $flag;
$retval = $self->_toString($flag);
}
return $retval;
}
sub serialize {
my $self = shift;
return $self->toString( @_ );
}
#-------------------------------------------------------------------------#
# bad style xinclude processing #
#-------------------------------------------------------------------------#
sub process_xinclude {
my $self = shift;
my $opts = shift;
XML::LibXML->new->processXIncludes( $self, $opts );
}
sub insertProcessingInstruction {
my $self = shift;
my $target = shift;
my $data = shift;
my $pi = $self->createPI( $target, $data );
my $root = $self->documentElement;
if ( defined $root ) {
# this is actually not correct, but i guess it's what the user
# intends
$self->insertBefore( $pi, $root );
}
else {
# if no documentElement was found we just append the PI
$self->appendChild( $pi );
}
}
sub insertPI {
my $self = shift;
$self->insertProcessingInstruction( @_ );
}
#-------------------------------------------------------------------------#
# DOM L3 Document functions.
# added after robins implicit feature requst
#-------------------------------------------------------------------------#
*getElementsByTagName = \&XML::LibXML::Element::getElementsByTagName;
*getElementsByTagNameNS = \&XML::LibXML::Element::getElementsByTagNameNS;
*getElementsByLocalName = \&XML::LibXML::Element::getElementsByLocalName;
1;
#-------------------------------------------------------------------------#
# XML::LibXML::DocumentFragment Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::DocumentFragment;
use vars qw(@ISA);
@ISA = ('XML::LibXML::Node');
sub toString {
my $self = shift;
my $retval = "";
if ( $self->hasChildNodes() ) {
foreach my $n ( $self->childNodes() ) {
$retval .= $n->toString(@_);
}
}
return $retval;
}
*serialize = \&toString;
1;
#-------------------------------------------------------------------------#
# XML::LibXML::Element Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::Element;
use vars qw(@ISA);
@ISA = ('XML::LibXML::Node');
use XML::LibXML qw(:ns :libxml);
use Carp;
sub setNamespace {
my $self = shift;
my $n = $self->nodeName;
if ( $self->_setNamespace(@_) ){
if ( scalar @_ < 3 || $_[2] == 1 ){
$self->setNodeName( $n );
}
return 1;
}
return 0;
}
sub getAttribute {
my $self = shift;
my $name = $_[0];
if ( $name =~ /^xmlns(?::|$)/ ) {
# user wants to get a namespace ...
(my $prefix = $name )=~s/^xmlns:?//;
$self->_getNamespaceDeclURI($prefix);
}
else {
$self->_getAttribute(@_);
}
}
sub setAttribute {
my ( $self, $name, $value ) = @_;
if ( $name =~ /^xmlns(?::|$)/ ) {
# user wants to set the special attribute for declaring XML namespace ...
# this is fine but not exactly DOM conformant behavior, btw (according to DOM we should
# probably declare an attribute which looks like XML namespace declaration
# but isn't)
(my $nsprefix = $name )=~s/^xmlns:?//;
my $nn = $self->nodeName;
if ( $nn =~ /^\Q${nsprefix}\E:/ ) {
# the element has the same prefix
$self->setNamespaceDeclURI($nsprefix,$value) ||
$self->setNamespace($value,$nsprefix,1);
##
## We set the namespace here.
## This is helpful, as in:
##
## | $e = XML::LibXML::Element->new('foo:bar');
## | $e->setAttribute('xmlns:foo','http://yoyodine')
##
}
else {
# just modify the namespace
$self->setNamespaceDeclURI($nsprefix, $value) ||
$self->setNamespace($value,$nsprefix,0);
}
}
else {
$self->_setAttribute($name, $value);
}
}
sub getAttributeNS {
my $self = shift;
my ($nsURI, $name) = @_;
croak("invalid attribute name") if !defined($name) or $name eq q{};
if ( defined($nsURI) and $nsURI eq XML_XMLNS_NS ) {
$self->_getNamespaceDeclURI($name eq 'xmlns' ? undef : $name);
}
else {
$self->_getAttributeNS(@_);
}
}
sub setAttributeNS {
my ($self, $nsURI, $qname, $value)=@_;
unless (defined $qname and length $qname) {
croak("bad name");
}
if (defined($nsURI) and $nsURI eq XML_XMLNS_NS) {
if ($qname !~ /^xmlns(?::|$)/) {
croak("NAMESPACE ERROR: Namespace declartions must have the prefix 'xmlns'");
}
$self->setAttribute($qname,$value); # see implementation above
return;
}
if ($qname=~/:/ and not (defined($nsURI) and length($nsURI))) {
croak("NAMESPACE ERROR: Attribute without a prefix cannot be in a namespace");
}
if ($qname=~/^xmlns(?:$|:)/) {
croak("NAMESPACE ERROR: 'xmlns' prefix and qualified-name are reserved for the namespace ".XML_XMLNS_NS);
}
if ($qname=~/^xml:/ and not (defined $nsURI and $nsURI eq XML_XML_NS)) {
croak("NAMESPACE ERROR: 'xml' prefix is reserved for the namespace ".XML_XML_NS);
}
$self->_setAttributeNS( defined $nsURI ? $nsURI : undef, $qname, $value );
}
sub getElementsByTagName {
my ( $node , $name ) = @_;
my $xpath = $name eq '*' ? "descendant::*" : "descendant::*[name()='$name']";
my @nodes = $node->_findnodes($xpath);
return wantarray ? @nodes : XML::LibXML::NodeList->new_from_ref(\@nodes, 1);
}
sub getElementsByTagNameNS {
my ( $node, $nsURI, $name ) = @_;
my $xpath;
if ( $name eq '*' ) {
if ( $nsURI eq '*' ) {
$xpath = "descendant::*";
} else {
$xpath = "descendant::*[namespace-uri()='$nsURI']";
}
} elsif ( $nsURI eq '*' ) {
$xpath = "descendant::*[local-name()='$name']";
} else {
$xpath = "descendant::*[local-name()='$name' and namespace-uri()='$nsURI']";
}
my @nodes = $node->_findnodes($xpath);
return wantarray ? @nodes : XML::LibXML::NodeList->new_from_ref(\@nodes, 1);
}
sub getElementsByLocalName {
my ( $node,$name ) = @_;
my $xpath;
if ($name eq '*') {
$xpath = "descendant::*";
} else {
$xpath = "descendant::*[local-name()='$name']";
}
my @nodes = $node->_findnodes($xpath);
return wantarray ? @nodes : XML::LibXML::NodeList->new_from_ref(\@nodes, 1);
}
sub getChildrenByTagName {
my ( $node, $name ) = @_;
my @nodes;
if ($name eq '*') {
@nodes = grep { $_->nodeType == XML_ELEMENT_NODE() }
$node->childNodes();
} else {
@nodes = grep { $_->nodeName eq $name } $node->childNodes();
}
return wantarray ? @nodes : XML::LibXML::NodeList->new_from_ref(\@nodes, 1);
}
sub getChildrenByLocalName {
my ( $node, $name ) = @_;
my @nodes;
if ($name eq '*') {
@nodes = grep { $_->nodeType == XML_ELEMENT_NODE() }
$node->childNodes();
} else {
@nodes = grep { $_->nodeType == XML_ELEMENT_NODE() and
$_->localName eq $name } $node->childNodes();
}
return wantarray ? @nodes : XML::LibXML::NodeList->new_from_ref(\@nodes, 1);
}
sub getChildrenByTagNameNS {
my ( $node, $nsURI, $name ) = @_;
my @nodes = $node->_getChildrenByTagNameNS($nsURI,$name);
return wantarray ? @nodes : XML::LibXML::NodeList->new_from_ref(\@nodes, 1);
}
sub appendWellBalancedChunk {
my ( $self, $chunk ) = @_;
my $local_parser = XML::LibXML->new();
my $frag = $local_parser->parse_xml_chunk( $chunk );
$self->appendChild( $frag );
}
1;
#-------------------------------------------------------------------------#
# XML::LibXML::Text Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::Text;
use vars qw(@ISA);
@ISA = ('XML::LibXML::Node');
sub attributes { return undef; }
sub deleteDataString {
my $node = shift;
my $string = shift;
my $all = shift;
my $data = $node->nodeValue();
$string =~ s/([\\\*\+\^\{\}\&\?\[\]\(\)\$\%\@])/\\$1/g;
if ( $all ) {
$data =~ s/$string//g;
}
else {
$data =~ s/$string//;
}
$node->setData( $data );
}
sub replaceDataString {
my ( $node, $left, $right,$all ) = @_;
#ashure we exchange the strings and not expressions!
$left =~ s/([\\\*\+\^\{\}\&\?\[\]\(\)\$\%\@])/\\$1/g;
my $datastr = $node->nodeValue();
if ( $all ) {
$datastr =~ s/$left/$right/g;
}
else{
$datastr =~ s/$left/$right/;
}
$node->setData( $datastr );
}
sub replaceDataRegEx {
my ( $node, $leftre, $rightre, $flags ) = @_;
return unless defined $leftre;
$rightre ||= "";
my $datastr = $node->nodeValue();
my $restr = "s/" . $leftre . "/" . $rightre . "/";
$restr .= $flags if defined $flags;
eval '$datastr =~ '. $restr;
$node->setData( $datastr );
}
1;
package XML::LibXML::Comment;
use vars qw(@ISA);
@ISA = ('XML::LibXML::Text');
1;
package XML::LibXML::CDATASection;
use vars qw(@ISA);
@ISA = ('XML::LibXML::Text');
1;
#-------------------------------------------------------------------------#
# XML::LibXML::Attribute Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::Attr;
use vars qw( @ISA ) ;
@ISA = ('XML::LibXML::Node') ;
sub setNamespace {
my ($self,$href,$prefix) = @_;
my $n = $self->nodeName;
if ( $self->_setNamespace($href,$prefix) ) {
$self->setNodeName($n);
return 1;
}
return 0;
}
1;
#-------------------------------------------------------------------------#
# XML::LibXML::Dtd Interface #
#-------------------------------------------------------------------------#
# this is still under construction
#
package XML::LibXML::Dtd;
use vars qw( @ISA );
@ISA = ('XML::LibXML::Node');
# at least DESTROY and CLONE_SKIP must be inherited
1;
#-------------------------------------------------------------------------#
# XML::LibXML::PI Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::PI;
use vars qw( @ISA );
@ISA = ('XML::LibXML::Node');
sub setData {
my $pi = shift;
my $string = "";
if ( scalar @_ == 1 ) {
$string = shift;
}
else {
my %h = @_;
$string = join " ", map {$_.'="'.$h{$_}.'"'} keys %h;
}
# the spec says any char but "?>" [17]
$pi->_setData( $string ) unless $string =~ /\?>/;
}
1;
#-------------------------------------------------------------------------#
# XML::LibXML::Namespace Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::Namespace;
sub CLONE_SKIP { 1 }
# this is infact not a node!
sub prefix { return "xmlns"; }
sub getPrefix { return "xmlns"; }
sub getNamespaceURI { return "http://www.w3.org/2000/xmlns/" };
sub getNamespaces { return (); }
sub nodeName {
my $self = shift;
my $nsP = $self->localname;
return ( defined($nsP) && length($nsP) ) ? "xmlns:$nsP" : "xmlns";
}
sub name { goto &nodeName }
sub getName { goto &nodeName }
sub isEqualNode {
my ( $self, $ref ) = @_;
if ( ref($ref) eq "XML::LibXML::Namespace" ) {
return $self->_isEqual($ref);
}
return 0;
}
sub isSameNode {
my ( $self, $ref ) = @_;
if ( $$self == $$ref ){
return 1;
}
return 0;
}
1;
#-------------------------------------------------------------------------#
# XML::LibXML::NamedNodeMap Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::NamedNodeMap;
use XML::LibXML::Common qw(:libxml);
sub CLONE_SKIP {
return $XML::LibXML::__threads_shared ? 0 : 1;
}
sub new {
my $class = shift;
my $self = bless { Nodes => [@_] }, $class;
$self->{NodeMap} = { map { $_->nodeName => $_ } @_ };
return $self;
}
sub length { return scalar( @{$_[0]->{Nodes}} ); }
sub nodes { return $_[0]->{Nodes}; }
sub item { $_[0]->{Nodes}->[$_[1]]; }
sub getNamedItem {
my $self = shift;
my $name = shift;
return $self->{NodeMap}->{$name};
}
sub setNamedItem {
my $self = shift;
my $node = shift;
my $retval;
if ( defined $node ) {
if ( scalar @{$self->{Nodes}} ) {
my $name = $node->nodeName();
if ( $node->nodeType() == XML_NAMESPACE_DECL ) {
return;
}
if ( defined $self->{NodeMap}->{$name} ) {
if ( $node->isSameNode( $self->{NodeMap}->{$name} ) ) {
return;
}
$retval = $self->{NodeMap}->{$name}->replaceNode( $node );
}
else {
$self->{Nodes}->[0]->addSibling($node);
}
$self->{NodeMap}->{$name} = $node;
push @{$self->{Nodes}}, $node;
}
else {
# not done yet
# can this be properly be done???
warn "not done yet\n";
}
}
return $retval;
}
sub removeNamedItem {
my $self = shift;
my $name = shift;
my $retval;
if ( $name =~ /^xmlns/ ) {
warn "not done yet\n";
}
elsif ( exists $self->{NodeMap}->{$name} ) {
$retval = $self->{NodeMap}->{$name};
$retval->unbindNode;
delete $self->{NodeMap}->{$name};
$self->{Nodes} = [grep {not($retval->isSameNode($_))} @{$self->{Nodes}}];
}
return $retval;
}
sub getNamedItemNS {
my $self = shift;
my $nsURI = shift;
my $name = shift;
return undef;
}
sub setNamedItemNS {
my $self = shift;
my $nsURI = shift;
my $node = shift;
return undef;
}
sub removeNamedItemNS {
my $self = shift;
my $nsURI = shift;
my $name = shift;
return undef;
}
1;
package XML::LibXML::_SAXParser;
# this is pseudo class!!! and it will be removed as soon all functions
# moved to XS level
use XML::SAX::Exception;
sub CLONE_SKIP {
return $XML::LibXML::__threads_shared ? 0 : 1;
}
# these functions will use SAX exceptions as soon i know how things really work
sub warning {
my ( $parser, $message, $line, $col ) = @_;
my $error = XML::SAX::Exception::Parse->new( LineNumber => $line,
ColumnNumber => $col,
Message => $message, );
$parser->{HANDLER}->warning( $error );
}
sub error {
my ( $parser, $message, $line, $col ) = @_;
my $error = XML::SAX::Exception::Parse->new( LineNumber => $line,
ColumnNumber => $col,
Message => $message, );
$parser->{HANDLER}->error( $error );
}
sub fatal_error {
my ( $parser, $message, $line, $col ) = @_;
my $error = XML::SAX::Exception::Parse->new( LineNumber => $line,
ColumnNumber => $col,
Message => $message, );
$parser->{HANDLER}->fatal_error( $error );
}
1;
package XML::LibXML::RelaxNG;
sub CLONE_SKIP { 1 }
sub new {
my $class = shift;
my %args = @_;
my $self = undef;
if ( defined $args{location} ) {
$self = $class->parse_location( $args{location} );
}
elsif ( defined $args{string} ) {
$self = $class->parse_buffer( $args{string} );
}
elsif ( defined $args{DOM} ) {
$self = $class->parse_document( $args{DOM} );
}
return $self;
}
1;
package XML::LibXML::Schema;
sub CLONE_SKIP { 1 }
sub new {
my $class = shift;
my %args = @_;
my $self = undef;
if ( defined $args{location} ) {
$self = $class->parse_location( $args{location} );
}
elsif ( defined $args{string} ) {
$self = $class->parse_buffer( $args{string} );
}
return $self;
}
1;
#-------------------------------------------------------------------------#
# XML::LibXML::Pattern Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::Pattern;
sub CLONE_SKIP { 1 }
sub new {
my $class = shift;
my ($pattern,$ns_map)=@_;
my $self = undef;
unless (UNIVERSAL::can($class,'_compilePattern')) {
croak("Cannot create XML::LibXML::Pattern - ".
"your libxml2 is compiled without pattern support!");
}
if (ref($ns_map) eq 'HASH') {
# translate prefix=>URL hash to a (URL,prefix) list
$self = $class->_compilePattern($pattern,0,[reverse %$ns_map]);
} else {
$self = $class->_compilePattern($pattern,0);
}
return $self;
}
1;
#-------------------------------------------------------------------------#
# XML::LibXML::XPathExpression Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::XPathExpression;
sub CLONE_SKIP { 1 }
1;
#-------------------------------------------------------------------------#
# XML::LibXML::InputCallback Interface #
#-------------------------------------------------------------------------#
package XML::LibXML::InputCallback;
use vars qw($_CUR_CB @_GLOBAL_CALLBACKS @_CB_STACK);
BEGIN {
$_CUR_CB = undef;
@_GLOBAL_CALLBACKS = ();
@_CB_STACK = ();
}
sub CLONE_SKIP {
return $XML::LibXML::__threads_shared ? 0 : 1;
}
#-------------------------------------------------------------------------#
# global callbacks #
#-------------------------------------------------------------------------#
sub _callback_match {
my $uri = shift;
my $retval = 0;
# loop through the callbacks and and find the first matching
# The callbacks are stored in execution order (reverse stack order)
# any new global callbacks are shifted to the callback stack.
foreach my $cb ( @_GLOBAL_CALLBACKS ) {
# callbacks have to return 1, 0 or undef, while 0 and undef
# are handled the same way.
# in fact, if callbacks return other values, the global match
# assumes silently that the callback failed.
$retval = $cb->[0]->($uri);
if ( defined $retval and $retval == 1 ) {
# make the other callbacks use this callback
$_CUR_CB = $cb;
unshift @_CB_STACK, $cb;
last;
}
}
return $retval;
}
sub _callback_open {
my $uri = shift;
my $retval = undef;
# the open callback has to return a defined value.
# if one works on files this can be a file handle. But
# depending on the needs of the callback it also can be a
# database handle or a integer labeling a certain dataset.
if ( defined $_CUR_CB ) {
$retval = $_CUR_CB->[1]->( $uri );
# reset the callbacks, if one callback cannot open an uri
if ( not defined $retval or $retval == 0 ) {
shift @_CB_STACK;
$_CUR_CB = $_CB_STACK[0];
}
}
return $retval;
}
sub _callback_read {
my $fh = shift;
my $buflen = shift;
my $retval = undef;
if ( defined $_CUR_CB ) {
$retval = $_CUR_CB->[2]->( $fh, $buflen );
}
return $retval;
}
sub _callback_close {
my $fh = shift;
my $retval = 0;
if ( defined $_CUR_CB ) {
$retval = $_CUR_CB->[3]->( $fh );
shift @_CB_STACK;
$_CUR_CB = $_CB_STACK[0];
}
return $retval;
}
#-------------------------------------------------------------------------#
# member functions and methods #
#-------------------------------------------------------------------------#
sub new {
my $CLASS = shift;
return bless {'_CALLBACKS' => []}, $CLASS;
}
# add a callback set to the callback stack
# synopsis: $icb->register_callbacks( [$match_cb, $open_cb, $read_cb, $close_cb] );
sub register_callbacks {
my $self = shift;
my $cbset = shift;
# test if callback set is complete
if ( ref $cbset eq "ARRAY" and scalar( @$cbset ) == 4 ) {
unshift @{$self->{_CALLBACKS}}, $cbset;
}
}
# remove a callback set to the callback stack
# if a callback set is passed, this function will check for the match function
sub unregister_callbacks {
my $self = shift;
my $cbset = shift;
if ( ref $cbset eq "ARRAY" and scalar( @$cbset ) == 4 ) {
$self->{_CALLBACKS} = [grep { $_->[0] != $cbset->[0] } @{$self->{_CALLBACKS}}];
}
else {
shift @{$self->{_CALLBACKS}};
}
}
# make libxml2 use the callbacks
sub init_callbacks {
my $self = shift;
$_CUR_CB = undef;
@_CB_STACK = ();
@_GLOBAL_CALLBACKS = @{ $self->{_CALLBACKS} };
if ( defined $XML::LibXML::match_cb and
defined $XML::LibXML::open_cb and
defined $XML::LibXML::read_cb and
defined $XML::LibXML::close_cb ) {
push @_GLOBAL_CALLBACKS, [$XML::LibXML::match_cb,
$XML::LibXML::open_cb,
$XML::LibXML::read_cb,
$XML::LibXML::close_cb];
}
$self->lib_init_callbacks();
}
# reset libxml2's callbacks
sub cleanup_callbacks {
my $self = shift;
$_CUR_CB = undef;
@_GLOBAL_CALLBACKS = ();
@_CB_STACK = ();
$self->lib_cleanup_callbacks();
}
$XML::LibXML::__loaded=1;
1;
__END__