Perl::Critic::Policy::CodeLayout::ProhibitParensWithBuilUser(Contributed Perl DocPerl::Critic::Policy::CodeLayout::ProhibitParensWithBuiltins(3pm)

NAME

       Perl::Critic::Policy::CodeLayout::ProhibitParensWithBuiltins - Write "open $handle, $path" instead of "open($handle, $path)".

AFFILIATION

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

DESCRIPTION

       Conway suggests that all built-in functions be called without parentheses around the argument list.  This reduces visual clutter and
       disambiguates built-in functions from user functions.  Exceptions are made for "my", "local", and "our" which require parentheses when
       called with multiple arguments.

	   open($handle, '>', $filename); #not ok
	   open $handle, '>', $filename;  #ok

	   split(/$pattern/, @list); #not ok
	   split /$pattern/, @list;  #ok

CONFIGURATION

       This Policy is not configurable except for the standard options.

NOTES

       Coding with parentheses can sometimes lead to verbose and awkward constructs, so I think the intent of Conway's guideline is to remove only
       the unnecessary parentheses.  This policy makes exceptions for some common situations where parentheses are usually required.  However, you
       may find other situations where the parentheses are necessary to enforce precedence, but they cause still violations.  In those cases,
       consider using the '## no critic' comments to silence Perl::Critic.

BUGS

       Some builtin functions (particularly those that take a variable number of scalar arguments) should probably get parentheses.  This policy
       should be enhanced to allow the user to specify a list of builtins that are exempt from the policy.

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							    2012-06-07	 Perl::Critic::Policy::CodeLayout::ProhibitParensWithBuiltins(3pm)