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Top Forums Shell Programming and Scripting Perl: searching for a string in a file... Post 302136094 by drl on Friday 14th of September 2007 04:06:42 PM
Old 09-14-2007
Hi.

I hope you will have a lot of fun and reward with perl -- I certainly have.

Briefly, regular expressions are not like filename expressions, so "d*" in perl (as in "... shared*") means "0 or more d's", not "d followed by anything".

I suggest you provide:

1) a small sample input that fails, and / or:

2) be more precise by "isn't working" ... cheers, drl

( edit 1: corrected explanation )

Last edited by drl; 09-15-2007 at 02:44 PM..
 

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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 <http://www.w3.org/TR/REC-xml/#determinism>)) AUTHORS
Matt Sergeant, Christian Glahn, Petr Pajas VERSION
2.0008 COPYRIGHT
2001-2007, AxKit.com Ltd. 2002-2006, Christian Glahn. 2006-2009, Petr Pajas. perl v5.16.2 2012-10-22 XML::LibXML::RegExp(3)
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