Free to abstract software for linux

Path::Abstract is a fast and featurefull class for UNIX-style path manipulation.

SYNOPSIS

use Path::Abstract;

my $path = Path::Abstract->new("/apple/banana");

# $parent is "/apple"
my $parent = $path->parent;

# $cherry is "/apple/banana/cherry.txt"
my $cherry = $path->child("cherry.txt");

Path::Abstract->new( < path> )
Path::Abstract->new( < part>, [ < part>, ..., < part> ] )

Create a new Path::Abstract object using < path> or by joining each < part> with "/"

Returns the new Path::Abstract object

Path::Abstract::path( < path> )
Path::Abstract::path( < part>, [ < part>, ..., < part> ] )

Create a new Path::Abstract object using < path> or by joining each < part> with "/"

Returns the new Path::Abstract object

$path->clone

Returns an exact copy of $path

$path->set( < path> )
$path->set( < part>, [ < part>, ..., < part> ] )

Set the path of $path to < path> or the concatenation of each < part> (separated by "/")

Returns $path

$path->is_nil
$path->is_empty

Returns true if $path is equal to ""

$path->is_root

Returns true if $path is equal to "/"

$path->is_tree

Returns true if $path begins with "/"

path("/a/b")->is_tree # Returns true
path("c/d")->is_tree # Returns false
$path->is_branch

Returns true if $path does NOT begin with a "/"

path("c/d")->is_branch # Returns true
path("/a/b")->is_branch # Returns false
$path->to_tree

Change $path by prefixing a "/" if it doesnt have one already

Returns $path

$path->to_branch

Change $path by removing a leading "/" if it has one

Returns $path

$path->list
$path->split

Returns the path in list form by splitting at each "/"

path("c/d")->list # Returns ("c", "d")
path("/a/b/")->last # Returns ("a", "b")
$path->first

Returns the first part of $path up to the first "/" (but not including the leading slash, if any)

path("c/d")->first # Returns "c"
path("/a/b")->first # Returns "a"
$path->last

Returns the last part of $path up to the last "/"

path("c/d")->last # Returns "d"
path("/a/b/")->last # Returns "b"
path

$path->get
$path->stringify

Returns the path in string or scalar form

path("c/d")->list # Returns "c/d"
path("/a/b/")->last # Returns "/a/b"

$path->push( < part>, [ < part>, ..., < part> ] )
$path->down( < part>, [ < part>, ..., < part> ] )

Modify $path by appending each < part> to the end of $path, separated by "/"

Returns $path

$path->child( < part>, [ < part>, ..., < part> ] )

Make a copy of $path and push each < part> to the end of the new path.

Returns the new child path

$path->pop( < count> )

Modify $path by removing < count> parts from the end of $path

Returns the removed path as a Path::Abstract object

$path->up( < count> )

Modify $path by removing < count> parts from the end of $path

Returns $path

$path->parent( < count> )

Make a copy of $path and pop < count> parts from the end of the new path

Returns the new parent path

$path->file
$path->file( < part>, [ < part>, ..., < part> ] )

Create a new Path::Class::File object using $path as a base, and optionally extending it by each < part>

Returns the new file object

$path->dir
$path->dir( < part>, [ < part>, ..., < part> ] )

Create a new Path::Class::Dir object using $path as a base, and optionally extending it by each < part>
Returns the new dir object

DBIx::SQL::Abstract is a Perl module that provides a convenient abstraction layer to a database.

SYNOPSIS

use DBIx::SQL::Abstract;

my $dbh = DBIx::SQL::Abstract->new( %dbcfg );

Building SQL Abstractions.

my($query, @bind) = $dbh->select($table, @fields, %where, @order);
my($query, @bind) = $dbh->insert($table, %fieldvals || @values);
my($query, @bind) = $dbh->update($table, %fieldvals, %where);
my($query, @bind) = $dbh->delete($table, %where);

Using DBI methods

my $sth = $dbh->prepare($query);
$sth->execute(@bind_params);
...
my $rc = $dbh->begin_work;
my $rc = $dbh->commit;
my $rc = $dbh->rollback;
my $rc = $dbh->disconnect;

Anything else DBI method can be used, by Example:

my $err = $dbh->err;
my $err = $dbh->errstr;
my $rv = $dbh->state;
my $rc = $dbh->DESTROY;

The intention of this module is to join some methods from the DBI and the SQL::Abstract modules, for a convenient and easy use.

To begin, we create an object, but first we must create a hash which contains the database parameters as follows.

my %dbcfg = { PrintError => 1,
RaiseError => 0,
AutoCommit => 0,
ChopBlanks => 1
driver => Pg,
dbname => db,
host => undef,
port => undef,
user => user,
passwd => undef
};

Notice that this parameters are set as default unless you set your required values.
my $dbh = DBIx::SQL::Abstract->new( %dbcfg );

This object automatically creates the connection with the database, and gets the methods listed above.

Libdatastruct is an ANSI C library for abstract data types (ADT) and common algorithms. Since it uses some compiler specific optimization methods, it is compatible for any GCC (or compatible) compiler.

This helps the programmer focus on other, usually more important, aspects of the program, and not have to reinvent the wheel.

Memory has been considered a vital factor, so problems in its management have been (or tried to) avoided, therefore memory leaks, use of uninitialized memory, reading/writing invalid blocks, etc. are a constant preoccupation.

These are not original algorithms, they have been used for years, and are a fundamental part of computer science.

Installation:

make
make install

Usage:

compilation: cc program.c -ldatastruct -Wall -o program

Transcend can best be described as retro-style, abstract, 2D shooter. The graphics are geometrical, and the pace is sometimes frenzied.

Two features set Transcend apart from other games. First, its dynamic graphical engine, which can smoothly morph from one complex shape to another, produces striking displays.

Combining these dynamic shapes with subtle randomizations makes each play through a Transcend level visually different from the last. The second novel feature is Transcends musical power-up system.

As you play through a level, you are simultaneously assembling an abstract visual collage and arranging a unique piece of music. Transcend merges video games with pure art---it can be viewed either as a game or as a multimedia sculpture.

Though I first read it after developing Transcend, the Scratchware Manifesto captures the spirit that motivated me to develop a game.

Filter::Macro is a Perl module to make macro modules that are expanded inline.

SYNOPSIS

In MyHandyModules.pm:

package MyHandyModules;
use Filter::Macro;
# lines below will be expanded into callers code
use strict;
use warnings;
use Switch;
use IO::All;
use Quantum::Superpositions;

In your program or module:

use MyHandyModules; # lines above are expanded here

If many of your programs begin with the same lines, it may make sense to abstract them away into a module, and use that module instead.

Sadly, it does not work that way, because by default, all lexical pragmas, source filters and subroutine imports invoked in MyHandyModules.pm takes effect in that module, not the calling programs.

One way to solve this problem is to use Filter::Include:

use Filter::Include;
include MyHandyModules;

However, it would be really nice if MyHandyModules.pm could define the macro-like semantic itself, instead of placing the burden on the caller.

This module lets you do precisely that. All you need to do is to put one line in MyHandyModules.pm, after the package MyHandyModules; line:

use Filter::Macro;

With this, a program or module that says use Filter::Macro will expand lines below use Filter::Macro into their own code, instead of the default semantic of evaluating them in the MyHandyModules package.

Line numbers in error and warning messages are unaffected by this module; they still point to the correct file name and line numbers.

Pentago project is a two-player abstract strategy game.

The game is played on a 6x6 board divided into four 3x3 sub-boards. Taking turns, each player places a marble of their color (black or white) onto an unoccupied space on the board, and then rotates one of the sub-boards by 90 degrees either clockwise or counter-clockwise.

A player wins by getting five of their marbles in a vertical, horizontal or diagonal row (either before or after the sub-board rotation in their move). If all 36 spaces on the board are occupied without a row of five being formed then the game is a draw.

The program includes an AI (Artificial Intelligence).

libscl (SCL) is a library that provides hash tables, list, queue, stack, symbol, balanced binary tree, and a vector as abstract data types.
Multiple independent instances of the same abstract type can be used, each with its own arbitrary contents.
Enhancements:
- Added a little more documentation and some test code.
- SCL should build on Windows with MS Visual C/C++ 6.0, Linux and Solaris with GCC and GNU make.

Avisynth is a powerful frameserver for Windows and Linux. It aims at editing and processing videos in a non linear manner.
Aviysnth 3.0 is a complete rewrite of Avisynth 2.5, written from scratch by Bidoche (David Pierre). Its advantages compared to Avisynth 2.5 are the following:
Abstract core layer that allows it to run on Windows and Linux.
- Better cache managing.
- More powerful script langage.
- Some more internal improvements.
On the other hand, the bad news is that the plugins of Avisynth 2.5 are not compatible with the 3.0 version.