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.\" ========================================================================
.\"
.IX Title "XML::LibXML::RelaxNG 3pm"
.TH XML::LibXML::RelaxNG 3pm "2019-02-13" "perl v5.28.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
XML::LibXML::RelaxNG \- RelaxNG Schema Validation
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&  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 ); };
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The XML::LibXML::RelaxNG class is a tiny frontend to libxml2's RelaxNG
implementation. Currently it supports only schema parsing and document
validation.
.SH "METHODS"
.IX Header "METHODS"
.IP "new" 4
.IX Item "new"
.Vb 3
\&  $rngschema = XML::LibXML::RelaxNG\->new( location => $filename_or_url );
\&  $rngschema = XML::LibXML::RelaxNG\->new( string => $xmlschemastring );
\&  $rngschema = XML::LibXML::RelaxNG\->new( DOM => $doc );
.Ve
.Sp
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.
.Sp
The location parameter allows one to parse a schema from the filesystem or a
\&\s-1URL.\s0
.Sp
The string parameter will parse the schema from the given \s-1XML\s0 string.
.Sp
The \s-1DOM\s0 parameter allows one to parse the schema from a pre-parsed XML::LibXML::Document.
.Sp
Note that the constructor will \fBdie()\fR if the schema does not meed the
constraints of the RelaxNG specification.
.IP "validate" 4
.IX Item "validate"
.Vb 1
\&  eval { $rngschema\->validate( $doc ); };
.Ve
.Sp
This function allows one 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 \fBdie()\fR and report the errors found. Because of this \fBvalidate()\fR
should be always evaluated.
.SH "AUTHORS"
.IX Header "AUTHORS"
Matt Sergeant,
Christian Glahn,
Petr Pajas
.SH "VERSION"
.IX Header "VERSION"
2.0134
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
2001\-2007, AxKit.com Ltd.
.PP
2002\-2006, Christian Glahn.
.PP
2006\-2009, Petr Pajas.
.SH "LICENSE"
.IX Header "LICENSE"
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.