Boo (programming language)

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Paradigm Object oriented
Designed by Rodrigo B. De Oliveira
Developer Rodrigo B. De Oliveira
First appeared 2003; 14 years ago (2003)
Stable release
0.9.7 / 25 March 2013; 4 years ago (2013-03-25)
Typing discipline static, strong, inferred, duck
Implementation language C#
Platform Common Language Infrastructure (.NET Framework & Mono)/
License BSD 3-Clause[1]
Influenced by
C#, Python
Genie, Vala

Boo is an object-oriented, statically typed, general-purpose programming language that seeks to make use of the Common Language Infrastructure's support for Unicode, internationalization, and web applications, while using a Python-inspired syntax[2] 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.

Boo was one of the three scripting languages for the Unity game engine (Unity Technologies employed De Oliveira), until it was dropped in 2014 due to small userbase.[3]

Boo is free software released under the BSD 3-Clause license. It is compatible with both the Microsoft .NET and Mono frameworks.

Code samples[edit]

Hello world program[edit]

print "Hello World!"

Fibonacci series generator function[edit]

def fib():
    a, b = 0L, 1L       # The 'L's make the numbers double word length (typically 64 bits)
    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}")

See also[edit]


  1. ^ "license.txt". Retrieved August 5, 2015. 
  2. ^ Rodrigo Barreto de Oliveira (2005). "The boo Programming Language" (PDF). Archived from the original (PDF) on February 6, 2009. Retrieved February 22, 2009. 
  3. ^ aleksandr (September 3, 2014). "Documentation, Unity scripting languages and you". Unity Blogs. 

External links[edit]