Oberon - Programming language

Oberon is a programming language created in 1986 by Niklaus Wirth.

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Oberon is a general-purpose programming language created in 1986 by Niklaus Wirth and the latest member of the Wirthian family of ALGOL-like languages (Euler, Algol-W, Pascal, Modula, and Modula-2). Oberon was the result of a concentrated effort to increase the power of Modula-2, the direct successor of Pascal, and simultaneously to reduce its complexity. Its principal new feature is the concept of type extension of record types: It permits the construction of new data types on the basis of existing ones and to relate them, deviating from the dogma of strictly static data typing. Read more on Wikipedia...

Tags: programming language
Interview with the creator of Oberon: 1.
Early development of Oberon happened in Eidgenössische Technische Hochschule Zürich
ALGOL 60 influenced the design of Oberon
There are 289 members in the Oberon subreddit
There are 3 Project Euler users using Oberon
Oberon on HOPL
Oberon appears in the TIOBE Index
Indeed.com has 0 matches for "applescript engineer".
projectoberon.com was registered in 2011
See also: (17 related languages) Modula-2, Oberon-2, Zonnon, Go, Nim, Algol, Euler, Pascal, Modula, Ada, Linux, Solaris, Lex, Yacc, X86, Obliq, Visual Studio
1 PLDB concepts link to Oberon: Oberon-2

Example from Riju:

MODULE Main;

IMPORT Out;

BEGIN
  Out.String("Hello, world!");
  Out.Ln;
END Main.

Example from hello-world:

MODULE HelloWorld;

IMPORT Out;

BEGIN
   Out.Open;
   Out.String('Hello World');
END HelloWorld.

Example from Wikipedia:

MODULE Rectangles;

IMPORT Figures;

TYPE
   Rectangle* = POINTER TO RectangleDesc;

   RectangleDesc* = RECORD
      (Figures.FigureDesc)
      x, y, w, h : INTEGER;
   END;

PROCEDURE Draw* (r : Rectangle);
BEGIN
  (* ... *)
END Draw;

(* Other procedures here *)

PROCEDURE Handle* (f: Figure; VAR msg: Figures.Message);
   VAR
      r : Rectangle;
BEGIN
   r := f(Rectangle);
   IF    msg IS Figures.DrawMsg THEN Draw(r)
   ELSIF msg IS Figures.MarkMsg THEN Mark(r)
   ELSIF msg IS Figures.MoveMsg THEN Move(r, msg(Figures.MoveMsg).dx, msg(Figures.MoveMsg).dy)
   ELSE  (* ignore *)
   END
END Handle;

PROCEDURE New* (VAR r : Rectangle);
BEGIN
   NEW(r);
   Figures.Init(r, Handle);
END New;

END Rectangles.

Language features

Feature	Supported	Example	Token
Strings	✓	'Hello world'	'
Assignment	✓		:=
Comments	✓	(* A comment *)
MultiLine Comments	✓	(* A comment *)	(* *)
Pointers	✓
Print() Debugging	✓		Out.String
Semantic Indentation	X