Kawa (Scheme implementation)

Kawa

Family	Lisp
Designed by	Per Bothner
Developer	The Kawa Community
First appeared	10 June 1996;28 years ago (1996-06-10) [1]
Stable release	3.1.1 [2] / 16 January 2020;5 years ago (2020-01-16) (w/R7RS compatibility)
Implementation language	Java, Scheme
Platform	Java virtual machine
OS	Cross-platform
License	MIT
Website	www.gnu.org/software/kawa
Influenced by
Lisp, Scheme

Kawa is a language framework written in the programming language Java that implements the programming language Scheme, a dialect of Lisp, and can be used to implement other languages to run on the Java virtual machine (JVM). It is a part of the GNU Project.

The name Kawa comes from the Polish word for coffee; a play on words, since Java is another familiar name for coffee.

Kawa is notable as one of the few programming languages with support for units of measure in the form of quantities. ^{[ citation needed ]}

Integration with Java

Besides using the language Scheme, Java object fields and methods can be accessed using code such as: (invokeobject'methodargument...). This will invoke a Java method, and does the same thing as object.method(argument,...) in Java. An object's fields can be accessed with: object:field-name or (invokeobject'field-name). Static (class) methods can be invoked with the function invoke-static. Kawa can be extended with Java code (by creating scheme functions in Java), and combined with other JVM implementations.

See also

• Free and open-source software portal

• List of JVM languages

References

1. "Change log" . Retrieved 2022-04-04.
2. "Kawa: News – Recent Changes". gnu.org. Retrieved 2020-02-14.

External links

• Official website

Timeline of Lisp dialects

• v
• t
• e

1958	1960	1965	1970	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020
LISP 1, 1.5, LISP 2(abandoned)
		Maclisp
			Interlisp
			MDL
				Lisp Machine Lisp
				Scheme				R5RS		R6RS	R7RS small
				NIL
					ZIL (Zork Implementation Language)
					Franz Lisp
					Common Lisp		ANSI standard
					Le Lisp
					MIT Scheme
					XLISP
						T
						Chez Scheme
						Emacs Lisp
						AutoLISP
						PicoLisp
						Gambit
							EuLisp
							ISLISP
							OpenLisp
							PLT Scheme				Racket
							newLISP
							GNU Guile
									Visual LISP
										Clojure
										Arc
										LFE
											Hy