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.\" ========================================================================
.\"
.IX Title "XML::LibXML::RelaxNG 3"
.TH XML::LibXML::RelaxNG 3 "2024-01-24" "perl v5.26.3" "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, no_network => 1 );
\&  $rngschema = XML::LibXML::RelaxNG\->new( string => $xmlschemastring, no_network => 1 );
\&  $rngschema = XML::LibXML::RelaxNG\->new( DOM => $doc, no_network => 1 );
\&  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, no_network => 1 );
\&  $rngschema = XML::LibXML::RelaxNG\->new( string => $xmlschemastring, no_network => 1 );
\&  $rngschema = XML::LibXML::RelaxNG\->new( DOM => $doc, no_network => 1 );
.Ve
.Sp
The constructor of XML::LibXML::RelaxNG needs to be called with list of
parameters. At least location, string or \s-1DOM\s0 parameter is required to specify
source of schema. Optional parameter no_network set to 1 cause that parser
would not access network and optional parameter recover set 1 cause that parser
would not call \fBdie()\fR on errors.
.Sp
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
(non-HTTPS) \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"
2.0210
.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.