/ 
Switch-Again-1.01
River stage two • 3 direct dependents • 29 total dependents
/ Switch::Again

NAME

Switch::Again - Switch`ing

VERSION

Version 1.01

SYNOPSIS

use Switch::Again qw/switch/;
my $switch = switch
	'a' => sub {
		return 1;
	},
	'b' => sub {
		return 2;
	},
	'c' => sub {
		return 3;
	},
	'default' => sub {
		return 4;
	}
;
my $val = $switch->('a'); # 1

...

use Switch::Again qw/all/;
my $val = switch 'e',
	sr('(search)', 'replace') => sub {
		return 1;
	},
	qr/(a|b|c|d|e)/ => sub {
		return 2;
	},
	sub { $_[0] == 1 } => sub {
		return 3;
	},
	'default' => sub {
		return 4;
	}
; # 2

EXPORT

switch

Keyword for either generating a reusable switch statement or calling the generated switch function directly, it accepts key/value pairs where the key is to be evaluated against any passed variable and the value is what is returned when the key matches. To generate a reusable switch pass an even number of params, to evaluate a single switch statement pass an odd number of params where the first param is the value that will be evaluated. Optionally a default key can be set which will be called if no other 'key' matches are met. keys can be any type of data struct as internally Struct::Match is used.

Reusable:

my $switch = switch
	string => sub { ... },
	qr/match this regex/ => sub { ... },
	sr('(search)', 'replace') => sub { ... },
	sub { $_[0] eq 'evaluate' } => sub { ... },
	{ a => 'b', c => 'd' } => sub { ... },
	[ 'e', 'f' ] => sub { ... },
	default => { 'the fallback' }

Single:

my $switch = switch 'find search'
	string => sub { ... },
	qr/match this regex/ => sub { ... },
	sr('(search)', 'replace') => sub { ... },
	sub { $_[0] eq 'evaluate' } => sub { ... },
	{ a => 'b', c => 'd' } => sub { ... },
	[ 'e', 'f' ] => sub { ... },		
	default => { 'the fallback' }

sr

A helper function to be used in conjunction with the switch statement, it allows you to search and replace the value being evaluated by the switch statement, if the search and replace is successfull then that keys value will be executed with the updated string.

sr('(search)', 'replace');

AUTHOR

LNATION, <thisusedtobeanemail at gmail.com>

BUGS

Please report any bugs or feature requests to bug-switch-again at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Switch-Again. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc Switch::Again

You can also look for information at:

ACKNOWLEDGEMENTS

LICENSE AND COPYRIGHT

Copyright 2018 Robert Acock.

This program is free software; you can redistribute it and/or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at:

http://www.perlfoundation.org/artistic_license_2_0

Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license.

If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license.

This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder.

This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.

Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.