09-16-2019
Thanks Ravinder,
I generally use various online REGEX checkers when when I am writing REGEX expressions, mostly REGEX for PHP code.
This is the first one I have seen that has the "visualization" done like this, thanks for sharing.
The REGEX checkers I like the best have always been the ones where we can cut-and-paste our text into the checker and then see
the resulting matches so we can easily test the input versus the output when debugging.
Next time I need a REGEX I will also try this visualization tool.
Thanks for sharing.
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LEARN ABOUT OSX
namespace::autoclean
namespace::autoclean(3) User Contributed Perl Documentation namespace::autoclean(3)
NAME
namespace::autoclean - Keep imports out of your namespace
SYNOPSIS
package Foo;
use namespace::autoclean;
use Some::Package qw/imported_function/;
sub bar { imported_function('stuff') }
# later on:
Foo->bar; # works
Foo->imported_function; # will fail. imported_function got cleaned after compilation
DESCRIPTION
When you import a function into a Perl package, it will naturally also be available as a method.
The "namespace::autoclean" pragma will remove all imported symbols at the end of the current package's compile cycle. Functions called in
the package itself will still be bound by their name, but they won't show up as methods on your class or instances.
This module is very similar to namespace::clean, except it will clean all imported functions, no matter if you imported them before or
after you "use"d the pragma. It will also not touch anything that looks like a method, according to "Class::MOP::Class::get_method_list".
If you're writing an exporter and you want to clean up after yourself (and your peers), you can use the "-cleanee" switch to specify what
package to clean:
package My::MooseX::namespace::autoclean;
use strict;
use namespace::autoclean (); # no cleanup, just load
sub import {
namespace::autoclean->import(
-cleanee => scalar(caller),
);
}
PARAMETERS
-also => [ ITEM | REGEX | SUB, .. ]
-also => ITEM
-also => REGEX
-also => SUB
Sometimes you don't want to clean imports only, but also helper functions you're using in your methods. The "-also" switch can be used to
declare a list of functions that should be removed additional to any imports:
use namespace::autoclean -also => ['some_function', 'another_function'];
If only one function needs to be additionally cleaned the "-also" switch also accepts a plain string:
use namespace::autoclean -also => 'some_function';
In some situations, you may wish for a more powerful cleaning solution.
The "-also" switch can take a Regex or a CodeRef to match against local function names to clean.
use namespace::autoclean -also => qr/^_/
use namespace::autoclean -also => sub { $_ =~ m{^_} };
use namespace::autoclean -also => [qr/^_/ , qr/^hidden_/ ];
use namespace::autoclean -also => [sub { $_ =~ m/^_/ or $_ =~ m/^hidden/ }, sub { uc($_) == $_ } ];
SEE ALSO
namespace::clean
Class::MOP
B::Hooks::EndOfScope
AUTHOR
Florian Ragwitz <rafl@debian.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Florian Ragwitz.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
perl v5.16.2 2011-08-24 namespace::autoclean(3)