PLT Scheme An innovative programming language.
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application development programming programming language compiler DrScheme

PLT Scheme Description

An innovative programming language. PLT Scheme is an innovative programming language that builds on a rich practical and academic tradition.It is suitable for implementation tasks ranging from scripting to application development, including GUIs, web services, etc.It includes the DrScheme programming environment, a virtual machine with a just-in-time compiler, tools for creating stand-alone executables, the PLT Scheme web server, extensive libraries, documentation for both beginners and experts, and more.It supports the creation of new programming languages through a rich,expressive syntax system. Example languages include Typed Scheme, ACL2, FrTime, Lazy Scheme, and ProfessorJ (which is a pedagogical dialect of Java). What's New in This Release: · The unit test framework for the teaching languages provides check-member-of and check-range for checking "random functions", i.e., "functions" that may produce several different results for one and the same argument. Added a new image library, 2htdp/image. Significant changes from htdp/image: · copying and pasting does not introduce jaggies · equal? comparisons are more efficient · added rotation & scaling · got rid of pinholes (new overlay, beside, above functions based on bounding boxes) · The scheme/vector library provides common vector operations (also reprovided by scheme). · The scheme/promise library provides several new kinds of promises with alternatives execution strategies. · New port-reading utilities: in-port, port->list, file->list. · A new require-macro, path-up, for requiring a file that is higher in the directory tree.

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