=head1 NAME

XML::LibXML::RelaxNG - RelaxNG Schema Validation

=head1 SYNOPSIS

  $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.

=over 4

=item B<new>

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

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 preparsed
XML::LibXML::Document.

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


=item B<validate>

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

This function allows to validate a document against the given RelaxNG schema.
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

1.62

=head1 COPYRIGHT

2001-2006, AxKit.com Ltd; 2002-2006 Christian Glahn; 2006 Petr Pajas, All rights reserved.

=cut