Oz - Programming language

Oz is an open source programming language created in 1991 by Gert Smolka.

#434on PLDB

33Years Old

371Repos

Oz is a multiparadigm programming language, developed in the Programming Systems Lab at Université catholique de Louvain, for programming language education. It has a canonical textbook: Concepts, Techniques, and Models of Computer Programming. Oz was first designed by Gert Smolka and his students in 1991. Read more on Wikipedia...

Tags: programming language
There are at least 371 Oz repos on GitHub
Early development of Oz happened in Universität des Saarlandes
The Google BigQuery Public Dataset GitHub snapshot shows 70 users using Oz in 72 repos on GitHub
There are 4 Project Euler users using Oz
Explore Oz snippets on Rosetta Code
Oz on HOPL
Oz appears in the TIOBE Index
CodeMirror package for syntax highlighting Oz
GitHub supports syntax highlighting for Oz
Indeed.com has 0 matches for "oz engineer".
See also: (11 related languages) Erlang, Lisp, Prolog, Alice, Scala, Unix, FreeBSD, Linux, Curry, Mercury, Visual Prolog

Example from Riju:

functor
import
    Application
    System
define
    {System.showInfo 'Hello, world!'}
    {Application.exit 0}
end

Example from the Hello World Collection:

% Hello World in Oz

functor
import
  System
  Application
define
  {System.showInfo "Hello World!"}
  {Application.exit 0}
end

Example from Linguist:

% You can get a lot of information about Oz by following theses links  :
% - http://mozart.github.io/
% - http://en.wikipedia.org/wiki/Oz_(programming_language)
% There is also a well known book that uses Oz for pedagogical reason :
% - http://mitpress.mit.edu/books/concepts-techniques-and-models-computer-programming
% And there are two courses on edX about 'Paradigms of Computer Programming' that also uses Oz for pedagogical reason :
% - https://www.edx.org/node/2751#.VHijtfl5OSo
% - https://www.edx.org/node/4436#.VHijzfl5OSo
%
% Here is an example of some code written with Oz.

declare
% Computes the sum of square of the N first integers.
fun {Sum N}
  local SumAux in
    fun {SumAux N Acc}
      if N==0 then Acc
      else
        {Sum N-1 Acc}
      end
    end
    {SumAux N 0}
  end
end

% Returns true if N is a prime and false otherwize
fun {Prime N}
  local PrimeAcc in
    fun {PrimeAcc N Acc}
	    if(N == 1) then false
	    elseif(Acc == 1) then true
	    else
	      if (N mod Acc) == 0 then false
	      else
	       {PrimeAcc N Acc-1}
	      end
	   end
    end
  {PrimeAcc N (N div 2)}
  end
end

% Reverse a list using cells and for loop (instead of recursivity)
fun {Reverse L}
  local RevList in
    RevList = {NewCell nil}
    for E in L do
      RevList := E|@RevList
    end
    @RevList
  end
end

Example from Wikipedia:

class Counter
   attr val
   meth init(Value)
      val:=Value
   end
   meth browse
      {Browse @val}
   end
   meth inc(Value)
      val :=@val+Value
   end
end

local C in
   C = {New Counter init(0)}
   {C inc(6)}
   {C browse}
end

Language features

Feature	Supported	Example	Token
Booleans	✓		true false
Line Comments	✓	% A comment	%
Comments	✓
Semantic Indentation	X