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Racket (formerly PLT Scheme) is a programming language suitable for implementation tasks ranging from scripting to application development, including GUIs, Web services, etc. It includes the DrRacket programming environment, a virtual machine with a just-in-time compiler, tools for creating stand-alone executables, the Racket 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 Racket, ACL2, FrTime, and Lazy Racket.

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2011-11-12 01:52 Back to release list
5.2

이 릴리스에 DrRacket, 새로운 db 인터페이스 라이브러리 PostgreSQL, Mysql은, 우리 모두의 SQLite, 및 더 많은 기존의 키 ("C-t" 새로운 탭과 "C r" 실행에 대 한)를 사용 하 여 DrRacket 사용자 및 확장 "음모" 라이브러리 XREPL (제공 편리한 일반 복제 명령), ODBC에서 온라인 확인 구문을 추가 컬렉션, 입력 한 라켓 (성능 디버깅 지원을 제공)으로 디렉토리를 등록 하는 "raco 링크" 명령보다 직관적인 type 출력물, 선택적 인수를 갖는 함수, Redex (지정 판단 양식, 형식 시스템 및 운영 의미 체계를 포함 하 여 지원) 다양 한 수정 및 개선.
Tags: Major feature enhancements
This release adds an online check syntax in DrRacket, the new db library interfaces PostgreSQL, MySQL, SQLite, and ODBC, XREPL (providing convenient plain REPL commands), a reimplemented and extended "plot" library, DrRacket use of more conventional keys ("C-t" for a new tab and "C-r" to run), a "raco link" command which registers a directory as a collection, Typed Racket (providing performance debugging support), more intuitive type printouts, functions with optional arguments, Redex (supporting specifying judgment forms, including type systems and operational semantics), and various fixes and improvements.

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