Free conditioning drills software for linux

kanjidrill is the free kanji quiz and Japanese dictionary for unix and X window systems
KDrill stands for "Kanji Drill". Its a program to help people learn kanji and kana (the Japanese charater set). It also doubles as a dictionary lookup program.
Supported platforms: Kdrill runs under pretty much any current UNIX ... including MacOS X. Im currently looking for someone willing to provide MacOSX binaries, since I dont have that system myself. kdrill can also compile and run under Cygwin on MS-windows, but only if you also run the X server with it.
Enhancements:
- This release fixes cut-n-paste to work with the latest Mozilla/Firefox format.
- There are misc.
- overflow patches.

mnemo memorization tool project is a memory accelerator.
mnemo is an application that helps the user memorize large amounts of arbitrary information and retain it indefinitely.
Items are drilled at progressively longer intervals to allow for new ones.
Main features:
- Drill intervals are tracked per-item.
- Accellerated intervals.
- Keyword-based content filtering.

XMMS Now Playing plugin outputs information of the song currently being played in XMMS to specified text files. It supports ID3 tags (using libid3tag from MAD project) and has some other bells and whistles.

This is a now playing plugin for XMMS, replacement for song_change.so

This is a really quick hack, but it works for me.

song_change.so (song change plugin) is included in XMMS package and provides
somewhat relative functionality, but with some limitations.

Improvements:

1. support for id3/id3v2 tags via libid3tag from MAD
2. support for additional conditions (if paused, if playing, etc..) not just playing/end of playlist reached.

Diamond Wiki provides a wiki based on metadata and faceted navigation.
This is an experimental wiki based on the idea of FacetedNavigation. What does that mean, you ask? At the bottom of each page you will see a list of attributes such as "Subject: Wiki" or "Author: Fred". These attributes are used to construct a dynamic directory of all the pages in DiamondWiki. To see the current directory just click on BrowseFacets.
Attributes are similar to tags, but with two key differences. First, attributes are grouped so that, for example, all the "Subject:" attributes are listed together. Second, attributes can be organized hierarchically, allowing users to drill down to see more and more detail. These differences make attributes much more scalable than simple tags. A website with 10,000 different attributes is perfectly reasonable, while a website with 10,000 different tags would be a cluttered mess.
In Diamond Wiki, anyone can change the attributes applied to a page simply by clicking the edit link at the bottom of the page.
Main features:
- BrowseFacets: this is what makes Diamond Wiki different from other wikis
- MetaData: learn how to add meta data to pages on Diamond Wiki
- SandBox: feel free to change this page and experiment with editing
- GuestBook: let me know you were here!
- WhatsNew: see how the Diamond Wiki software has been changing
- FindPage: search or browse the database in various ways

Snow Path Formation Simulator is a program that models the process of people forming very distinct, and yet not always altogether logical looking, paths in the snow as they walk across open spaces.

The evolving condition of the snow is displayed graphically. This project may eventually mature into a screensaver.

Class::Contract - Design-by-Contract OO in Perl.

SYNOPSIS

package ClassName
use Class::Contract;

contract {
inherits BaseClass;

invar { ... };

attr data1;
attr data2 => HASH;

class attr shared => SCALAR;

ctor new;

method methodname;
pre { ... };
failmsg Error message;

post { ... };
failmsg Error message;

impl { ... };

method nextmethod;
impl { ... };

class method sharedmeth;
impl { ... };

# etc.
};

Background

Design-by-contract is a software engineering technique in which each module of a software system specifies explicitly what input (or data or arguments) it requires, and what output (or information or results) it guarantees to produce in response.

These specifications form the "clauses" of a contract between a module and the client software that uses it. If the client software abides by the input requirements, the module guarantees to produce the correct output. Hence by verifying these clauses at each interaction with a module, the overall behaviour of the system can be confidently predicted.
Design-by-contract reinforces the benefits of modular design techniques by inserting explicit compile-time or run-time checks on a contract. These checks are most often found in object-oriented languages and are typically implemented as pre-conditions and post-conditions on methods, and invariants on classes.

Note that these features differ from simple verification statements such as the C assert statement. Conditions and invariants are properties of a class, and are inherited by derived classes.

An additional capacity that is often provided in design-by-contract systems is the ability to selectively disable checking in production code. This allows the contractual testing to be carried out during implementation, without impinging on the performance of the final system.

Adding design-by-contract to Perl

The Class::Contract module provides a framework for specifying methods and attributes for a class (much like the existing class definition modules Class::Struct, Class::MethodMaker, and Class::Generate). Class::Contract allows both per-object and per-class methods and attributes to be defined. Attributes may be scalar-, array-, hash-, or object-based.

Class::Contract differs from other class-specification modules (except Class::Generate) in that it also provides the ability to specify invariant conditions on classes, and pre- and post-conditions on methods and attributes. All of these clauses are fully inheritable, and may be selectively disabled. It differs from all other modules in that it has a cleaner, simpler specification syntax, and -- more importantly -- it enforces encapsulation of object attributes, thereby ensuring that the class contract cannot be subverted.

Defining classes

Class::Contract provides an explicit syntax for defining the attributes, methods, and constructors of a class. The class itself is defined using the contract subroutine. contract takes a single argument -- a subroutine reference or a block. That block is executed once and the results used to construct and install the various components of the class in the current package:

package Queue;
contract {
# specification of class Queue attributes and methods here
};