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perl::critic::policy::inputoutput::prohibitjoinedreadline(3) [centos man page]

Perl::Critic::Policy::InputOutput::ProhibitJoinedReadlinUser Contributed Perl DocumentPerl::Critic::Policy::InputOutput::ProhibitJoinedReadline(3)

NAME
Perl::Critic::Policy::InputOutput::ProhibitJoinedReadline - Use "local $/ = undef" or File::Slurp instead of joined readline. AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
It's really easy to slurp a whole filehandle in at once with "join q{}, <$fh">, but that's inefficient -- Perl goes to the trouble of splitting the file into lines only to have that work thrown away. To save performance, either slurp the filehandle without splitting like so: do { local $/ = undef; <$fh> } or use File::Slurp, which is even faster. Note that if the "ProhibitPunctuationVars" policy is also in effect, it will complain about the use of $/ in the line above. In that case, write this instead: use English '-no_match_vars'; do { local $INPUT_RECORD_SEPARATOR = undef; <$fh> }; CONFIGURATION
This Policy is not configurable except for the standard options. CAVEATS
Due to a bug in the current version of PPI (v1.119_03) and earlier, the readline operator is often misinterpreted as less-than and greater- than operators after a comma. Therefore, this policy only works well on the empty filehandle, "<>". When PPI is fixed, this should just start working. 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 2014-06-09 Perl::Critic::Policy::InputOutput::ProhibitJoinedReadline(3)

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Perl::Critic::Policy::InputOutput::RequireCheckedClose(3User Contributed Perl DocumentatiPerl::Critic::Policy::InputOutput::RequireCheckedClose(3)

NAME
Perl::Critic::Policy::InputOutput::RequireCheckedClose - Write "my $error = close $fh;" instead of "close $fh;". AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
The perl builtin I/O function "close" returns a false value on failure. That value should be checked to ensure that the close was successful. my $error = close $filehandle; # ok close $filehandle or die "unable to close: $!"; # ok close $filehandle; # not ok use autodie qw< :io >; close $filehandle; # ok You can use autodie, Fatal, or Fatal::Exception to get around this. Currently, autodie is not properly treated as a pragma; its lexical effects aren't taken into account. CONFIGURATION
This Policy is not configurable except for the standard options. AUTHOR
Andrew Moore <amoore@mooresystems.com> ACKNOWLEDGMENTS
This policy module is based heavily on policies written by Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>. COPYRIGHT
Copyright (c) 2007-2011 Andrew Moore. 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 v5.16.3 2014-06-09 Perl::Critic::Policy::InputOutput::RequireCheckedClose(3)
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