debian man page for perl::critic::policy::regularexpressions::requirelineboundarymat

Query: perl::critic::policy::regularexpressions::requirelineboundarymat

OS: debian

Section: 3pm

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

Perl::Critic::Policy::RegularExpressions::RequireLineBouUseryContributedPerl::Critic::Policy::RegularExpressions::RequireLineBoundaryMatching(3pm)

NAME
Perl::Critic::Policy::RegularExpressions::RequireLineBoundaryMatching - Always use the "/m" modifier with regular expressions.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Folks coming from a "sed" or "awk" background tend to assume that '$' and '^' match the beginning and end of the line, rather than then beginning and end of the string. Adding the '/m' flag to your regex makes it behave as most people expect it should. my $match = m{ ^ $pattern $ }x; #not ok my $match = m{ ^ $pattern $ }xm; #ok
CONFIGURATION
This Policy is not configurable except for the standard options.
NOTES
For common regular expressions like e-mail addresses, phone numbers, dates, etc., have a look at the Regexp::Common module. Also, be cautions about slapping modifier flags onto existing regular expressions, as they can drastically alter their meaning. See <http://www.perlmonks.org/?node_id=484238> for an interesting discussion on the effects of blindly modifying regular expression flags.
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module. perl v5.14.2 2012Perl::Critic::Policy::RegularExpressions::RequireLineBoundaryMatching(3pm)
Related Man Pages
perl::critic::policy::regularexpressions::prohibitunusualdelimit(3) - centos
perl::critic::policy::builtinfunctions::requireblockgrep(3) - centos
perl::critic::policy::regularexpressions::prohibitsinglecharalte(3pm) - debian
perl::critic::policy::regularexpressions::requirebracesformultil(3pm) - debian
perl::critic::policy::regularexpressions::requireextendedformatt(3pm) - debian
Similar Topics in the Unix Linux Community
Perl syntax for sed searches
How to extract text from string using regular expressions
Using regular expressions to separate apples from oranges
sed using wildcard
awk or sed or python for regular expressions ?