debian man page for perl::critic::policy::controlstructures::prohibituntilblocks

Query: perl::critic::policy::controlstructures::prohibituntilblocks

OS: debian

Section: 3pm

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

Perl::Critic::Policy::ControlStructures::ProhibitUntilBlUser(Contributed Perl DocPerl::Critic::Policy::ControlStructures::ProhibitUntilBlocks(3pm)

NAME
Perl::Critic::Policy::ControlStructures::ProhibitUntilBlocks - Write "while(! $condition)" instead of "until($condition)".
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Conway discourages using "until" because it leads to double-negatives that are hard to understand. Instead, reverse the logic and use "while". until($condition) { do_something() } #not ok until(! $no_flag) { do_something() } #really bad while( ! $condition) { do_something() } #ok This Policy only covers the block-form of "until". For the postfix variety, see "ProhibitPostfixControls".
CONFIGURATION
This Policy is not configurable except for the standard options.
SEE ALSO
Perl::Critic::Policy::ControlStructures::ProhibitPostfixControls
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::ControlStructures::ProhibitUntilBlocks(3pm)
Related Man Pages
perl::critic::policy::controlstructures::prohibitpostfixcontrols(3) - centos
perl::critic::policy::controlstructures::prohibitunreachablecode(3) - centos
perl::critic::policy::builtinfunctions::requireblockgrep(3pm) - debian
perl::critic::policy::controlstructures::prohibitunreachablecode(3pm) - debian
perl::critic::policy::controlstructures::prohibituntilblocks(3pm) - debian
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