04-26-2002
Because I did it correctly and you didn't.
Seriously, you left out [0-9]
I would think that would stand out like a sore thumb. That $ anchors the regular expression to the end. It seemed like a good idea. [0-9]
matches a digit. [0-9]* matches a string of digits. The RE you used ,* matches a string of commas.
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------
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LEARN ABOUT MOJAVE
xml::libxml::regexp
XML::LibXML::RegExp(3) User Contributed Perl Documentation XML::LibXML::RegExp(3)
NAME
XML::LibXML::RegExp - XML::LibXML::RegExp - interface to libxml2 regular expressions
SYNOPSIS
use XML::LibXML;
my $compiled_re = XML::LibXML::RegExp->new('[0-9]{5}(-[0-9]{4})?');
if ($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();
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).
new()
$compiled_re = XML::LibXML::RegExp->new( $regexp_str );
The constructor takes a string containing a regular expression and returns a compiled regexp object.
matches($string)
$bool = $compiled_re->matches($string);
Given a string value, returns a true value if the value is matched by the compiled regular expression.
isDeterministic()
$bool = $compiled_re->isDeterministic();
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>))
AUTHORS
Matt Sergeant, Christian Glahn, Petr Pajas
VERSION
2.0110
COPYRIGHT
2001-2007, AxKit.com Ltd.
2002-2006, Christian Glahn.
2006-2009, Petr Pajas.
LICENSE
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.18.2 2014-02-01 XML::LibXML::RegExp(3)