Sort::Key::Types -

Sort::Key::Types − handle Sort::Key data types  SYNOPSIS  DESCRIPTION  FUNCTIONS  SEE ALSO  COPYRIGHT AND LICENSE 

---

Sort::Key::Types − handle Sort::Key data types

SYNOPSIS

use Sort::Key::Types qw(register_type);
register_type(Color => sub { $_−>R, $_−>G, $_−>B }, qw(int, int, int));
# you better
# use Sort::Key::Register ...

DESCRIPTION

The Sort::Key family of modules can be extended to support new key types using this module (or the more friendly Sort::Key::Register).

FUNCTIONS

The following functions are provided:
Sort::Key::register_type($name, \&gensubkeys, @subkeystypes)

registers a new datatype named $name defining how to convert it to a multi-key.

&gensubkeys should convert the object of type $name passed on $_ to a list of values composing the multi-key.

@subkeystypes is the list of types for the generated multi-keys.

For instance:

Sort::Key::Types::register_type
'Person',
sub { $_−>surname,
$_−>name,
$_−>middlename },
qw(str str str);
Sort::Key::Types::register_type
'Color',
sub { $_−>R, $_−>G, $_−>B },
qw(int int int);

Once a datatype has been registered it can be used in the same way as types supported natively, even for defining new types, i.e.:

Sort::Key::Types::register_type
'Family',
sub { $_−>father, $_−>mother },
qw(Person Person);

SEE ALSO

Sort::Key, Sort::Key::Merger, Sort::Key::Register.

COPYRIGHT AND LICENSE

Copyright (C) 2005−2007, 2014 by Salvador Fandiño, <[email protected]>.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.4 or, at your option, any later version of Perl 5 you may have available.

---