Lennart Augustsson is a Swedish

computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...

. He was formerly a lecturer at the Computing Science Department at Chalmers University of Technology. His research field is

functional programming In computer science, functional programming is a programming paradigm where programs are constructed by Function application, applying and Function composition (computer science), composing Function (computer science), functions. It is a declarat ...

and implementations of functional

programming language A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their Syntax (programming languages), syntax (form) and semantics (computer science), semantics (meaning), usually def ...

s. Augustsson has worked for Carlstedt Research and Technology, Sandburst, Credit Suisse, Standard Chartered Bank,

Facebook Facebook is a social media and social networking service owned by the American technology conglomerate Meta Platforms, Meta. Created in 2004 by Mark Zuckerberg with four other Harvard College students and roommates, Eduardo Saverin, Andre ...

, X Development,

Google Google LLC (, ) is an American multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial ...

and is currently employed by

Epic Games Epic Games, Inc. is an American Video game developer, video game and software development, software developer and video game publisher, publisher based in Cary, North Carolina. The company was founded by Tim Sweeney (game developer), Tim Sween ...

Programming

Augustsson was intimately involved in early development of the

multi-user dungeon A multi-user dungeon (MUD, ), also known as a multi-user dimension or multi-user domain, is a Multiplayer video game, multiplayer Time-keeping systems in games#Real-time, real-time virtual world, usually Text-based game, text-based or storybo ...

(MUD)

LPMud LPMud, abbreviated LP, is a family of multi-user dungeon (MUD) server software. Its first instance, the original LPMud game driver, was developed in 1989 by Lars Pensjö (the LP in LPMud). LPMud was innovative in its separation of the MUD infrastr ...

, both in the LPMUD driver and the CD mudlib. His MUD community pseudonym is Marvin. He authored several hardware

device driver In the context of an operating system, a device driver is a computer program that operates or controls a particular type of device that is attached to a computer or automaton. A driver provides a software interface to hardware devices, enabli ...

s for the Berkeley Software Distribution (BSD)

Unix Unix (, ; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, a ...

operating system An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ...

NetBSD NetBSD is a free and open-source Unix-like operating system based on the Berkeley Software Distribution (BSD). It was the first open-source BSD descendant officially released after 386BSD was fork (software development), forked. It continues to ...

Languages

Augustsson has developed several

s and implementations, including: * Cayenne *

Haskell Haskell () is a general-purpose, statically typed, purely functional programming language with type inference and lazy evaluation. Designed for teaching, research, and industrial applications, Haskell pioneered several programming language ...

-B

compiler In computing, a compiler is a computer program that Translator (computing), translates computer code written in one programming language (the ''source'' language) into another language (the ''target'' language). The name "compiler" is primaril ...

(HBC) * Parallel Haskell (pH) compiler front end, from the

Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a Private university, private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of moder ...

(MIT) * Bluespec SystemVerilog (BSV) compiler, first version * Lazy ML (LML), co-developed with Thomas Johnsson, a functional programming language developed in the early 1980s, before Miranda and Haskell. LML is a strongly typed, statically scoped implementation of ML, with

lazy evaluation In programming language theory, lazy evaluation, or call-by-need, is an evaluation strategy which delays the evaluation of an Expression (computer science), expression until its value is needed (non-strict evaluation) and which avoids repeated eva ...

. The key innovation of LML was to demonstrate how to compile a lazy functional language. Until then, lazy languages had been implemented via interpreted graph reduction. LML compiled to graph reduction machine (G-machine) code. * Part of the development team at

responsible for creating the Verse programming language Augustsson has written three winning entries in the language C for the

International Obfuscated C Code Contest The International Obfuscated C Code Contest (abbreviated IOCCC) is a computer programming contest for Source code, code written in C (programming language), C that is the most creatively obfuscated code, obfuscated. Held semi-annually, it is desc ...

: * 1985: Most obscure program
1985/august.c
* 1986: Best complex task done in a complex way

* 1996: Best of Show

References

External links

*
Lennart Augustsson's blog

archived at archive.is {{DEFAULTSORT:Augustsson, Lennart Swedish computer scientists Swedish computer programmers Programming language designers Programming language researchers MUD developers Year of birth missing (living people) Living people