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=head1 NAME

XML::LibXML::RelaxNG - RelaxNG Schema Validation

=head1 SYNOPSIS

use XML::LibXML;
  $doc = XML::LibXML->new->parse_file($url);

$rngschema = XML::LibXML::RelaxNG->new( location => $filename_or_url );
  $rngschema = XML::LibXML::RelaxNG->new( string => $xmlschemastring );
  $rngschema = XML::LibXML::RelaxNG->new( DOM => $doc );
  eval { $rngschema->validate( $doc ); };

=head1 DESCRIPTION

The XML::LibXML::RelaxNG class is a tiny frontend to libxml2's RelaxNG
implementation. Currently it supports only schema parsing and document
validation.

=head1 METHODS

=over 4

=item new

The constructor of XML::LibXML::RelaxNG may get called with either one of three
parameters. The parameter tells the class from which source it should generate
a validation schema. It is important, that each schema only have a single
source.

The location parameter allows to parse a schema from the filesystem or a URL.

The string parameter will parse the schema from the given XML string.

The DOM parameter allows to parse the schema from a pre-parsed L<<<<<< XML::LibXML::Document >>>>>>.

Note that the constructor will die() if the schema does not meed the
constraints of the RelaxNG specification.

=item validate

eval { $rngschema->validate( $doc ); };

This function allows to validate a (parsed) document against the given RelaxNG
schema. The argument of this function should be an XML::LibXML::Document
object. If this function succeeds, it will return 0, otherwise it will die()
and report the errors found. Because of this validate() should be always
evaluated.

=back

=head1 AUTHORS

Matt Sergeant,
Christian Glahn,
Petr Pajas

=head1 VERSION

2.0018

=head1 COPYRIGHT

2001-2007, AxKit.com Ltd.

2002-2006, Christian Glahn.

2006-2009, Petr Pajas.

=cut