08-27-2008
Hi,
I got a little clue about the reason.Thanks otheus to make me look into the source code of Net::FTP module.Your doubt is correct,this module is the core reason for this behaviour
In this module,in situations like can't able to open the file due to permissions,invalid filename etc. 'carp' method in 'Carp' module is called,which will act exactly like inbuilt method 'warn'.The exceptions or control thrown using 'warn' is not possible to trap using a $@ and it won't be get set in this case also.So the message is thrown out to the STDOUT/STDERR.
One question i have to you guys is how to trap or prevent this from being printed into the console.I know i can do it by redirecting the output or error message and all.But i want it to be trapped...Anyone please!
Regards
Dileep
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LEARN ABOUT CENTOS
perl::critic::policy::builtinfunctions::prohibitstringyeval
Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEUser3Contributed Perl DocumePerl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval(3)
NAME
Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval - Write "eval { my $foo; bar($foo) }" instead of "eval "my $foo; bar($foo);"".
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
The string form of "eval" is recompiled every time it is executed, whereas the block form is only compiled once. Also, the string form
doesn't give compile-time warnings.
eval "print $foo"; # not ok
eval {print $foo}; # ok
CONFIGURATION
There is an "allow_includes" boolean option for this Policy. If set, then strings that look like they only include a single "use" or
"require" statement (with the possible following statement that consists of a single number) are allowed. With this option set, the
following are flagged as indicated:
eval 'use Foo'; # ok
eval 'require Foo'; # ok
eval "use $thingy;"; # ok
eval "require $thingy;"; # ok
eval "use $thingy; 1;"; # ok
eval "require $thingy; 1;"; # ok
eval 'use Foo; blah;'; # still not ok
eval 'require Foo; 2; 1;'; # still not ok
eval 'use $thingy;'; # still not ok
eval 'no Foo'; # still not ok
If you don't understand why the number is allowed, see Perl::Critic::Policy::ErrorHandling::RequireCheckingReturnValueOfEval.
This option inspired by Ricardo SIGNES' Perl::Critic::Policy::Lax::ProhibitStringyEval::ExceptForRequire.
SEE ALSO
Perl::Critic::Policy::ControlStrucutres::RequireBlockGrep
Perl::Critic::Policy::ControlStrucutres::RequireBlockMap
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 v5.16.3 2014-06-09 Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval(3)