Boo is an object oriented, statically typed programming language developed starting in 2003, which seeks to make use of the Common Language Infrastructure support for Unicode, internationalization and web style applications, while using a Python-inspired syntax and a special focus on language and compiler extensibility. Some features of note include type inference, generators, multimethods, optional duck typing, macros, true closures, currying, and first class functions. A programming paradigm is a paradigmatic style of programming (compare with a methodology, which is a paradigmatic style of doing software engineering). ... Bold textObject-oriented analysis and design (OOAD) is a software engineering approach that models a system as a group of interacting objects. ... For other uses, see Software developer (disambiguation). ... A software release refers to the creation and availability of a new version of a computer software product. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 39th day of the year in the Gregorian calendar. ... In computer science, a type system defines how a programming language classifies values and expressions into types, how it can manipulate those types and how they interact. ... On computer science, a datatype (often simply type) is a name or label for a set of values and some operations which can be performed on that set of values. ... In computing, strongly-typed, when applied to a programming language, is used to describe how the language handles datatypes. ... In computer programming, duck typing is a style of dynamic typing in which an objects current set of methods and properties determines the valid semantics, rather than its inheritance from a particular class. ... Look up Implementation in Wiktionary, the free dictionary. ... Python is a general-purpose, high-level programming language. ... An operating system (OS) is a software that manages computer resources and provides programmers with an interface used to access those resources. ... Microsoft . ... Mono is a project led by Novell (formerly by Ximian) to create an Ecma standard compliant . ... A software license is a legal agreement which may take the form of a proprietary or gratuitous license as well as a memorandum of contract between a producer and a user of computer software. ... The MIT License, also called the X License or the X11 License, originated at the Massachusetts Institute of Technology, is a license for the use of certain types of computer software. ... The BSD daemon BSD licenses represent a family of permissive free software licenses. ... A website (alternatively, web site or Web site) is a collection of Web pages, images, videos or other digital assets that is hosted on one or more web servers, usually accessible via the Internet. ... Bold textObject-oriented analysis and design (OOAD) is a software engineering approach that models a system as a group of interacting objects. ... In computer science, a type system defines how a programming language classifies values and expressions into types, how it can manipulate those types and how they interact. ... A programming language is an artificial language that can be used to control the behavior of a machine, particularly a computer. ... Visual overview of the Common Language Infrastructure (CLI) The Common Language Infrastructure (CLI) is an open specification developed by Microsoft that describes the executable code and runtime environment that form the core of the Microsoft . ... The Unicode Standard, Version 5. ... Internationalization and localization are means of adapting products such as publications or software for non-native environments, especially other nations and cultures. ... Python is a general-purpose, high-level programming language. ... Type inference is a feature present in some strongly statically typed programming languages. ... In computer science, a generator is a special routine that can be used to control the iteration behaviour of a loop. ... This article or section should be merged with Multiple dispatch Developers of computer software typically organize source code into named blocks called variously subroutines, procedures, subprograms, functions, or methods. ... In computer programming, duck typing is a style of dynamic typing in which an objects current set of methods and properties determines the valid semantics, rather than its inheritance from a particular class. ... For other uses, see Macro (disambiguation) A macro in computer science is a rule or pattern that specifies how a certain input sequence (often a sequence of characters) should be mapped to an output sequence (also often a sequence of characters) according to a defined procedure. ... In computer science, a closure is a function that is evaluated in an environment containing one or more bound variables. ... This article is about the function transformation technique. ... In computing, a first-class object (also value, entity, and citizen), in the context of a particular programming language, is an entity which can be used in programs without restriction (when compared to other kinds of objects in the same language). ...

Boo is open source–licensed under an MIT/BSD style license. Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... A free software licence is a software licence which grants recipients rights to modify and redistribute the software which would otherwise be prohibited by copyright law. ... The MIT License, also called the X License or the X11 License, originated at the Massachusetts Institute of Technology, is a license for the use of certain types of computer software. ... The BSD daemon BSD licenses represent a family of permissive free software licenses. ...

Boo can be used with Microsoft .NET or Mono. Microsoft . ... Mono is a project led by Novell (formerly by Ximian) to create an Ecma standard compliant . ...

Code samples

Hello world program

 print "Hello, world!" 

A hello world program is a computer program that prints out Hello, World! on a display device. ...

Fibonacci series generator function

 def fib(): a, b = 0L, 1L #The 'L's make the numbers 64-bit while true: yield b a, b = b, a + b # Print the first 5 numbers in the series: for index as int, element in zip(range(5), fib()): print("${index+1}: ${element}") 

A tiling with squares whose sides are successive Fibonacci numbers in length A Fibonacci spiral, created by drawing arcs connecting the opposite corners of squares in the Fibonacci tiling shown above – see golden spiral In mathematics, the Fibonacci numbers form a sequence defined by the following recurrence relation: That is... In computer science, a generator is a special routine that can be used to control the iteration behaviour of a loop. ...

Basic Windows Form example demonstrating classes, closures, and events

 import System.Windows.Forms from System.Windows.Forms import System.Drawing class MyForm(Form): def constructor(message as string): b = Button(Text: "Click Me") b.Location = Point(100, 50) b.Click += do(): MessageBox.Show(message) self.Controls.Add(b) f = MyForm("you clicked the button!") Application.Run(f) 

In object-oriented programming, a class is a programming language construct used to group related fields and methods. ... In computer science, a closure is a function that is evaluated in an environment containing one or more bound variables. ...

Asynchronous design pattern with a closure

 import System def run(): print("executing") print "started" result = run.BeginInvoke({ print("called back") }) System.Threading.Thread.Sleep(50ms) run.EndInvoke(result) print "done" 

In computer science, a closure is a function that is evaluated in an environment containing one or more bound variables. ...

See also

• IronPython - an implementation of Python for the .NET platform, similar to Jython.
• Nemerle - a high-level statically-typed programming language for the .NET platform. It offers functional, object-oriented and imperative features as well as macros.
• Groovy - a language with similar objectives but targeting the Java Platform
• REBOL - a more mature language sharing common goals.
• IronRuby

Image File history File links Free_Software_Portal_Logo. ... IronPython is an implementation of the Python programming language, targeting . ... Jython, formerly known as JPython, is an implementation of the Python programming language written in Java. ... Nemerle is a high-level statically-typed programming language for the . ... Groovy is an object-oriented programming language for the Java Platform as an alternative to the Java programming language. ... REBOL, the Relative Expression Based Object Language (pronounced [rebl]), is a data exchange and programming language designed specifically for network communications and distributed computing. ... IronRuby is an implementation of the Ruby programming language targeting Microsoft . ...

External links

• Official website