Free classes software for linux

Perl6::Classes project contains first class classes in Perl 5.

SYNOPSIS

use Perl6::Classes;

class Composer {
submethod BUILD { print "Giving birth to a new composern" }
method compose { print "Writing some music...n" }
}

class ClassicalComposer is Composer {
method compose { print "Writing some muzak...n" }
}

class ModernComposer is Composer {
submethod BUILD($) { $.length = shift }
method compose() { print((map { int rand 10 } 1..$.length), "n") }
has $.length;
}

my $beethoven = new ClassicalComposer;
my $barber = new ModernComposer 4;
my $mahler = ModernComposer->new(400);

$beethoven->compose; # Writing some muzak...
$barber->compose # 7214
compose $mahler; # 89275869347968374698756....

Perl6::Classes allows the creation of (somewhat) Perl 6-style classes in Perl 5. The following features are currently supported:

subs, methods, and submethods
And their respective scoping rules.

Attributes
Which are available through the has keyword, and look like $.this.

Inheritance
Both single and multiple inheritance are available through the is keyword.

Signatures
Signatures on methods, subs, and submethods are supported, but just the Perl 5 kind.

Data hiding
Using the public, protected, and private traits, you can enforce (run-time) data hiding. This is not supported on attributes, which are always private.

Anonymous classes
That respect closures. You can now nest them inside methods of other classes, even other anonymous ones!

The Perl6::Classes module augments Perls syntax with a new declarator: class. It offers the advantage over Perls standard OO mechanism that it is conceptually easier to see (especially for those from a C++/Java background). It offers the disadvantage, of course, of being less versatile.

Objective-C Foundation Classes is an Objective-C library.
It contains general purpose classes for easier development of applications, in areas such as data types, network, C library wrappers, collections, and compound classes.
The classes in the library are grouped in five clusters:
- DataTypes - integer, text string, fraction, bitarray, date/time, random generators, big integer, big double ...
- Collections - array, list, hash table, AVL and n-tree, circular array, graph ...
- Network - TCP/UDP server and client, HTTP client, Telnet client ...
- C-library wrappers - DBM, socket, MD5, regular expression, timer, file, directory, gzip and bzip2 file, text screen ...
- Compound - Argument parser, calendar, finite state machine, tokenizer, XML tree, discrete distribution, objective-c source tokenizer ...
Enhancements:
- A new class (DBigFraction) and a new protocol (DBitArithmetic) have been added to the library.
- There are also several bugfixes related to 64-bit platforms.
- The copy-constructor support has been improved, and as a result all collections can now be (deep) copied.
- There are some small bugfixes, and several classes have been extended with new methods.

Nameko was born as a simple PHP webmail. Now Nameko is much more than this: its a set of classes to manage e-mail with PHP.
The project can retrieve message from a POP3 server, parse e-mails, send email through SMTP server, and so on.
The mail parser was totally rewritten from the original version: now its greatly improved, and it can read every kind of email.
The Nameko webmail has also been totally rewritten: now it has a great interface, fast, powerful, with a lot of advanced tools.
Each component of the webmail is customizable, with a sort of plug-ins system: you can add only the plug-ins for the functions you really need.
The basic version on Nameko is always a one-file script: so simple tu set up!
Enhancements:
- This release include great performance improvements, making parsing also of heavy email (> 50MB) much faster.
- It includes some code cleanup and small bugfixes.

Class::Maker Perl module contains classes, reflection, schema, serialization, attribute- and multiple inheritance.

SYNOPSIS

use Class::Maker qw(class);
class Human, { isa => [qw( ParentClass )],
public =>
{
string => [qw(name lastname)],

ref => [qw(father mother)],

array => [qw(friends)],

custom => [qw(anything)],
},

private =>
{
int => [qw(dummy1 dummy2)],
},

configure =>
{
ctor => create,

explicit => 0,
},
};
sub Human::greeting : method { my $this = shift;
printf This is %s (%d), $this->name, $this->uid;
}
class UnixUser, { isa => [qw( Human )],
public =>
{
int => [qw(uid gid)],

string => [qw(username)],
},
};

my $a = Human->new( uid => 1, gid => 2, name => Bart );

$a->father( Human->new( name => Houmer ) );

$a->greeting();

$a->uid = 12;

$a->_dummy1( bla );

Class::Maker introduces the concept of classes via a "class" function. It automatically creates packages, ISA, new and attribute-handlers. The classes can inherit from common perl-classes and class-maker classes. Single and multiple inheritance is supported.

This package is for everybody who wants to program oo-perl and does not really feel comfortable with the common way.

Java-like reflection is also implemented and allows one to inspect the class properties and methods during runtime. This is helpfull for implementing persistance and serialization. A Tangram (see cpan) schema generator is included to the package, so one can use Tangram object-persistance on the fly as long as he uses Class::Maker classes.

Class::Interfaces is a Per module for defining interface classes inline.

SYNOPSIS

# define some simple interfaces
use Class::Interfaces (
Serializable => [ pack, unpack ],
Printable => [ toString ],
Iterable => [ iterator ],
Iterator => [ hasNext, next ]
);

# or some more complex ones ...

# interface can also inherit from
# other interfaces using this form
use Class::Interfaces (
BiDirectionalIterator => {
isa => Iterator,
methods => [ hasPrev, prev ]
},
ResetableIterator => {
isa => Iterator,
methods => [ reset ]
},
# we even support multiple inheritance
ResetableBiDirectionalIterator => {
isa => [ ResetableIterator, BiDirectionalIterator ]
}
);

# it is also possible to create an
# empty interface, sometimes called
# a marker interface
use Class::Interfaces (
JustAMarker => undef
);

This module provides a simple means to define abstract class interfaces, which can be used to program using the concepts of interface polymorphism.

Class::Std::Utils is a Perl module for utility subroutines for building "inside-out" objects.

SYNOPSIS

use Class::Std::Utils;

# Constructor for anonymous scalars...
my $new_object = bless anon_scalar(), $class;

# Convert an object reference into a unique ID number...
my $ID_num = ident $new_object;

# Extract class-specific arguments from a hash reference...
my %args = extract_initializers_from($arg_ref);

This module provides three utility subroutines that simplify the creation of "inside-out" classes. See Chapters 15 and 16 of "Perl Best Practices" (OReilly, 2005) for details.

Class::DBI::ConceptSearch is a Perl module to retrieve Class::DBI aggregates from high-level conceptual searches.

SYNOPSIS

my $cs = Class::DBI::ConceptSearch->new(xml => $config); #see CONFIGURATION
$cs->use_wildcards(1);
$cs->use_implicit_wildcards(1);
$cs->use_search_ilike(1);
$cs->use_search_lower(1);

my(@tracks) = $cs->search( albums => Britney );

Given the example Class::DBI classes (Music::CD, Music::Artist, Music::Track), lets add another one, Music::Dbxref, which contains external database accessions outside our control. Music::Dbxref includes things like UPC IDs, ASIN and ISBN numbers, vendor and manufacturer part numbers, person IDs (for artists), etc.