CPAN::Groonga

=head1 NAME 

Acme::Given::Hash - you like given but it's too much typing.

=head1 SYNOPSIS

  use Acme::Given::Hash;
  my $result = $given ~~ gvn { $value1 => $scalar
                             , $value2 => do { ... }
                             , $value3 => sub{ ... }
                             } || $default ;

  # is going to result in the same thing as: 
  my $result; 
  given($given) {
    when ($value1) { $result = $scalar }
    when ($value2) { $result = do{ ... }}
    when ($value3) { $result = sub{...}->() }
    default        { $result = $default }
  };


  # if you use an arrayref you can do more complex matching
  $result = $given ~~ gvn [ 'scalar' => 'still works, just like the hash'
                          , qr{reg}  => [qw{also works}]
                          , [1..5]   => 'works too'
                          , {a=>b,c=>d} => 'same here'
                          , sub{$_>100} => 'for subs $_ is localized to the value of $given.'
                          , gvn { foo => 'bar' } => 'also works but "bar" will be seen as a true value rather then the thing to match'
                          ];

=head1 EXPORTED FUNCTIONS

=head2 gvn

  my $given_hash_obj  = gvn {...}; 
  my $given_array_obj = gvn [...]; 

This is really just a simple constructor that blesses the given structure in to an object where ~~ is overridden as to trip the value of the structure.

=head1 TODO

All on Github: https://github.com/notbenh/Acme-Given-Hash/issues

=head1 AUTHORS

NOTBENH <ben hengst> wrote this but it was heavly inspired by the team over at Puppet Labs as they have something like this, Also I could not have done this with out the smart match op, thanks team perl.

=head1 SOURCE

All on Github: https://github.com/notbenh/Acme-Given-Hash

=head1 BUGS

Issues on Github: https://github.com/notbenh/Acme-Given-Hash/issues

=head1 COPYRIGHT

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See http://www.perl.com/perl/misc/Artistic.html