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# $Id: Reader.pm,v 1.1.2.1 2004/04/20 20:09:48 pajas Exp $
#
# This is free software, you may use it and distribute it under the same terms as
# Perl itself.
#
# Copyright 2001-2003 AxKit.com Ltd., 2002-2006 Christian Glahn, 2006-2009 Petr Pajas
#
#
package XML::LibXML::Reader;
use XML::LibXML;
use Carp;
use strict;
use warnings;
use vars qw ($VERSION);
$VERSION = "2.0132"; # VERSION TEMPLATE: DO NOT CHANGE
use 5.008_000;
BEGIN {
UNIVERSAL::can('XML::LibXML::Reader','_newForFile') or
croak("Cannot use XML::LibXML::Reader module - ".
"your libxml2 is compiled without reader support!");
}
use base qw(Exporter);
use constant {
XML_READER_TYPE_NONE => 0,
XML_READER_TYPE_ELEMENT => 1,
XML_READER_TYPE_ATTRIBUTE => 2,
XML_READER_TYPE_TEXT => 3,
XML_READER_TYPE_CDATA => 4,
XML_READER_TYPE_ENTITY_REFERENCE => 5,
XML_READER_TYPE_ENTITY => 6,
XML_READER_TYPE_PROCESSING_INSTRUCTION => 7,
XML_READER_TYPE_COMMENT => 8,
XML_READER_TYPE_DOCUMENT => 9,
XML_READER_TYPE_DOCUMENT_TYPE => 10,
XML_READER_TYPE_DOCUMENT_FRAGMENT => 11,
XML_READER_TYPE_NOTATION => 12,
XML_READER_TYPE_WHITESPACE => 13,
XML_READER_TYPE_SIGNIFICANT_WHITESPACE => 14,
XML_READER_TYPE_END_ELEMENT => 15,
XML_READER_TYPE_END_ENTITY => 16,
XML_READER_TYPE_XML_DECLARATION => 17,
XML_READER_NONE => -1,
XML_READER_START => 0,
XML_READER_ELEMENT => 1,
XML_READER_END => 2,
XML_READER_EMPTY => 3,
XML_READER_BACKTRACK => 4,
XML_READER_DONE => 5,
XML_READER_ERROR => 6
};
use vars qw( @EXPORT @EXPORT_OK %EXPORT_TAGS );
sub CLONE_SKIP { 1 }
BEGIN {
%EXPORT_TAGS = (
types =>
[qw(
XML_READER_TYPE_NONE
XML_READER_TYPE_ELEMENT
XML_READER_TYPE_ATTRIBUTE
XML_READER_TYPE_TEXT
XML_READER_TYPE_CDATA
XML_READER_TYPE_ENTITY_REFERENCE
XML_READER_TYPE_ENTITY
XML_READER_TYPE_PROCESSING_INSTRUCTION
XML_READER_TYPE_COMMENT
XML_READER_TYPE_DOCUMENT
XML_READER_TYPE_DOCUMENT_TYPE
XML_READER_TYPE_DOCUMENT_FRAGMENT
XML_READER_TYPE_NOTATION
XML_READER_TYPE_WHITESPACE
XML_READER_TYPE_SIGNIFICANT_WHITESPACE
XML_READER_TYPE_END_ELEMENT
XML_READER_TYPE_END_ENTITY
XML_READER_TYPE_XML_DECLARATION
)],
states =>
[qw(
XML_READER_NONE
XML_READER_START
XML_READER_ELEMENT
XML_READER_END
XML_READER_EMPTY
XML_READER_BACKTRACK
XML_READER_DONE
XML_READER_ERROR
)]
);
@EXPORT = (@{$EXPORT_TAGS{types}},@{$EXPORT_TAGS{states}});
@EXPORT_OK = @EXPORT;
$EXPORT_TAGS{all}=\@EXPORT_OK;
}
our %_preserve_flag;
{
my %props = (
load_ext_dtd => 1, # load the external subset
complete_attributes => 2, # default DTD attributes
validation => 3, # validate with the DTD
expand_entities => 4, # substitute entities
);
sub getParserProp {
my ($self, $name) = @_;
my $prop = $props{$name};
return undef unless defined $prop;
return $self->_getParserProp($prop);
}
sub setParserProp {
my $self = shift;
my %args = map { ref($_) eq 'HASH' ? (%$_) : $_ } @_;
my ($key, $value);
while (($key,$value) = each %args) {
my $prop = $props{ $key };
$self->_setParserProp($prop,$value);
}
return;
}
my (%string_pool,%rng_pool,%xsd_pool); # used to preserve data passed to the reader
sub new {
my ($class) = shift;
my %args = map { ref($_) eq 'HASH' ? (%$_) : $_ } @_;
my $encoding = $args{encoding};
my $URI = $args{URI};
$URI="$URI" if defined $URI; # stringify in case it is an URI object
my $options = XML::LibXML->_parser_options(\%args);
my $self = undef;
if ( defined $args{location} ) {
$self = $class->_newForFile( $args{location}, $encoding, $options );
}
elsif ( defined $args{string} ) {
$self = $class->_newForString( $args{string}, $URI, $encoding, $options );
if (defined($self)) {
$string_pool{$self} = \$args{string};
}
}
elsif ( defined $args{IO} ) {
$self = $class->_newForIO( $args{IO}, $URI, $encoding, $options );
}
elsif ( defined $args{DOM} ) {
croak("DOM must be a XML::LibXML::Document node")
unless UNIVERSAL::isa($args{DOM}, 'XML::LibXML::Document');
$self = $class->_newForDOM( $args{DOM} );
}
elsif ( defined $args{FD} ) {
my $fd = fileno($args{FD});
$self = $class->_newForFd( $fd, $URI, $encoding, $options );
}
else {
croak("XML::LibXML::Reader->new: specify location, string, IO, DOM, or FD");
}
if ($args{RelaxNG}) {
if (ref($args{RelaxNG})) {
$rng_pool{$self} = \$args{RelaxNG};
$self->_setRelaxNG($args{RelaxNG});
} else {
$self->_setRelaxNGFile($args{RelaxNG});
}
}
if ($args{Schema}) {
if (ref($args{Schema})) {
$xsd_pool{$self} = \$args{Schema};
$self->_setXSD($args{Schema});
} else {
$self->_setXSDFile($args{Schema});
}
}
return $self;
}
sub DESTROY {
my $self = shift;
delete $string_pool{$self};
delete $rng_pool{$self};
delete $xsd_pool{$self};
$self->_DESTROY;
}
}
sub close {
my ($reader) = @_;
# _close return -1 on failure, 0 on success
# perl close returns 0 on failure, 1 on success
return $reader->_close == 0 ? 1 : 0;
}
sub preservePattern {
my $reader=shift;
my ($pattern,$ns_map)=@_;
if (ref($ns_map) eq 'HASH') {
# translate prefix=>URL hash to a (URL,prefix) list
$reader->_preservePattern($pattern,[reverse %$ns_map]);
} else {
$reader->_preservePattern(@_);
}
}
sub nodePath {
my $reader=shift;
my $path = $reader->_nodePath;
$path=~s/\[\d+\]//g; # make /foo[1]/bar[1] just /foo/bar, since
# sibling count in the buffered fragment is
# basically random and generally misleading
return $path;
}
1;
__END__