09-03-2013
Quote:
Originally Posted by
noamr
unfortunately, although the readline library would probably work, it's license mandates that any software using it will be free. and the product i'm developing isn't, so i probably can't use it.
any other suggestions?
If readline would work, but its license is a dealbreaker, have a look at the editline library (BSD license).
Regards,
Alister
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LEARN ABOUT DEBIAN
perl::critic::policy::inputoutput::prohibitreadlineinforloop
Perl::Critic::Policy::InputOutput::ProhibitReadlineInForUser(Contributed Perl DocPerl::Critic::Policy::InputOutput::ProhibitReadlineInForLoop(3pm)
NAME
Perl::Critic::Policy::InputOutput::ProhibitReadlineInForLoop - Write "while( $line = <> ){...}" instead of "for(<>){...}".
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Using the readline operator in a "for" or "foreach" loop is very slow. The iteration list of the loop creates a list context, which causes
the readline operator to read the entire input stream before iteration even starts. Instead, just use a "while" loop, which only reads one
line at a time.
for my $line ( <$file_handle> ){ do_something($line) } #not ok
while ( my $line = <$file_handle> ){ do_something($line) } #ok
CONFIGURATION
This Policy is not configurable except for the standard options.
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::InputOutput::ProhibitReadlineInForLoop(3pm)