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.IX Title "XML::LibXML::RegExp 3"
.TH XML::LibXML::RegExp 3 2023-07-25 "perl v5.38.0" "User Contributed Perl Documentation"
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.SH NAME
XML::LibXML::RegExp \- XML::LibXML::RegExp \- interface to libxml2 regular expressions
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 4
\&  use XML::LibXML;
\&  my $compiled_re = XML::LibXML::RegExp\->new(\*(Aq[0\-9]{5}(\-[0\-9]{4})?\*(Aq);
\&  if ($compiled_re\->isDeterministic()) { ... }
\&  if ($compiled_re\->matches($string)) { ... }
\&
\&  $compiled_re = XML::LibXML::RegExp\->new( $regexp_str );
\&  $bool = $compiled_re\->matches($string);
\&  $bool = $compiled_re\->isDeterministic();
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
This is a perl interface to libxml2's implementation of regular expressions,
which are used e.g. for validation of XML Schema simple types (pattern facet).
.IP \fBnew()\fR 4
.IX Item "new()"
.Vb 1
\&  $compiled_re = XML::LibXML::RegExp\->new( $regexp_str );
.Ve
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The constructor takes a string containing a regular expression and returns a
compiled regexp object.
.IP matches($string) 4
.IX Item "matches($string)"
.Vb 1
\&  $bool = $compiled_re\->matches($string);
.Ve
.Sp
Given a string value, returns a true value if the value is matched by the
compiled regular expression.
.IP \fBisDeterministic()\fR 4
.IX Item "isDeterministic()"
.Vb 1
\&  $bool = $compiled_re\->isDeterministic();
.Ve
.Sp
Returns a true value if the regular expression is deterministic; returns false
otherwise. (See the definition of determinism in the XML spec (<http://www.w3.org/TR/REC\-xml/#determinism>))
.SH AUTHORS
.IX Header "AUTHORS"
Matt Sergeant,
Christian Glahn,
Petr Pajas
.SH VERSION
.IX Header "VERSION"
2.0209
.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.