Perl::Critic::Policy::RegularExpressions::RequireBracesFUserlContributed PerPerl::Critic::Policy::RegularExpressions::RequireBracesForMultiline(3)

NAME

       Perl::Critic::Policy::RegularExpressions::RequireBracesForMultiline - Use "{" and "}" to delimit multi-line regexps.

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       Long regular expressions are hard to read.  A good practice is to use the "x" modifier and break the regex into multiple lines with
       comments explaining the parts.  But, with the usual "//" delimiters, the beginning and end can be hard to match, especially in a "s///"
       regexp.	Instead, try using "{}" characters to delimit your expressions.

       Compare these:

	   s/
	      <a s+ href="([^"]+)">
	       (.*?)
	      </a>
	    /link=$1, text=$2/xms;

       vs.

	   s{
	      <a s+ href="([^"]+)">
	       (.*?)
	      </a>
	    }
	    {link=$1, text=$2}xms;

       Is that an improvement?	Marginally, but yes.  The curly braces lead the eye better.

CONFIGURATION

       There is one option for this policy, "allow_all_brackets".  If this is true, then, in addition to allowing "{}", the other matched pairs of
       "()", "[]", and "<>" are allowed.

CREDITS

       Initial development of this policy was supported by a grant from the Perl Foundation.

AUTHOR

       Chris Dolan <cdolan@cpan.org>

COPYRIGHT

       Copyright (c) 2007-2011 Chris Dolan.  Many 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 v5.16.3							    2014-06-Perl::Critic::Policy::RegularExpressions::RequireBracesForMultiline(3)