The Zoo, Yale University Computer Science scheme Department.
Scheme uses strictly but programming dynamically typed variables and supports first class procedures.
Compare characters; compares numbers.It programming was also one of the first programming languages to support first-class continuations.There is no equivalent of Common Lisp's scheme defun and primitives."srfi programming 28: programming Basic Format programming Strings".
75 known implementations of Scheme are listed by "scheme-faq-standards".
For writing and language reading Scheme expressions, Scheme provides read and write.
6.5) 4 R6RS extends this by providing a procedure called environment by which the programmer can keygen specify exactly which objects to import into the evaluation environment.
This process broke with the earlier games R n RS approach of unanimity.
"Common Lisp english is a new dialect of Lisp, a successor to MacLisp, influenced strongly by ZetaLisp and to some extent by Scheme and InterLisp." easy a b (Reaff 2008) ieee Standard for the Scheme Programming Language.It is intended as a quick-start guide, something a novice can use to get a non-trivial working knowledge of the language, before moving on to more comprehensive and in-depth texts.Google Inc, Official Google Research blog.In learning R5RS, a suggested implementation of delay and force is given, implementing the promise as a procedure with no arguments (a thunk ) and using memoization to ensure that it is only ever evaluated once, irrespective of the number of times force is called (R5RS.The Scheme, programming Language, fourth Edition,.Scheme Language Steering Committee, scheme-reports mailing books list.(car args) string-append original) args) ( 1 2 3) 6 ( "1" "2" "3 "123" In R6RS every binding, including the standard ones, belongs to some library, and all exported bindings are immutable.Most Scheme implementations also provide additional macro systems." From Dov Grobgeld (2002).Character data is also now specified in Unicode.