UNLAMBDA

UNLAMBDA is an esoteric programming language created in 1999 by David Madore.

#518on PLDB	24Years Old	226Users
2Books	0Papers

Try now: Riju · TIO · Replit

Unlambda is a minimal, "nearly pure" functional programming language invented by David Madore. It is based on combinatory logic, a version of the lambda calculus that omits the lambda operator. It relies mainly on two built-in functions (s and k) and an apply operator (written `, the backquote character). Read more on Wikipedia...

UNLAMBDA website
UNLAMBDA Wikipedia page
Explore UNLAMBDA snippets on Rosetta Code
UNLAMBDA on HOPL
UNLAMBDA on Esolang
UNLAMBDA appears in the Quine Relay project
See also: (3 related languages)Scheme, C, Java
HTML of this page generated by LanguagePage.ts

Example from Riju:

`.
`.!`.d`.l`.r`.o`.w`. `.,`.o`.l`.l`.e`.Hi

Example from hello-world:

`r```````````.H.e.l.l.o. .w.o.r.l.di

Example from the Hello World Collection:

# Hello World in unlambda

`r```````````.H.e.l.l.o. .w.o.r.l.di

Feature	Supported	Token	Example
Line Comments	✓	#	# A comment
Comments	✓
Semantic Indentation	X

title	authors	year	publisher
Esoteric Programming Languages: Brainfuck, Intercal, Befunge, Esoteric Programming Language, Kvikkalkul, One Instruction Set Computer, Unlambda	Books and LLC
Langage De Programmation Exotique: Brainfuck, Malbolge, Snusp, Befunge, Shakespeare Programming Language, Thue, Lolcode, Whitespace, Unlambda	Groupe and Livres	2010

UNLAMBDA - Esoteric programming language

Language features

Books about UNLAMBDA from ISBNdb