Girish Mahajan (Editor)

Fjölnir (programming language)

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Designed by
  
Snorri Agnarsson

Typing discipline
  
strong, dynamic

OS
  
MS-DOS

First appeared
  
1980s

Scope
  
lexical

Paradigm
  
procedural, object-oriented

Fjölnir (also Fjolnir or Fjoelnir) is a programming language developed by professor Snorri Agnarsson of computer science at Háskóli Íslands (University of Iceland) that was mostly used in the 1980s. The source files usually have the extension fjo or sma.

Contents

Features

Fjölnir is based on the concept of representing programs as trees, and packages by substitutions on trees using algebraic operators. For example, in the Hello World example below, "GRUNNUR" is a package, the block of code between braces is a package, and * is an operator that substitutes names in one package with elements from another. In this case, skrifastreng (which writes a string to the standard output) is imported from "GRUNNUR".

Code examples

;; Hello world in Fjölnir "hello" < main { main -> stef(;) stofn skrifastreng(;"Hello, world!"), stofnlok } * "GRUNNUR" ;

References

Fjölnir (programming language) Wikipedia