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Scheme 48 is a free software Scheme implementation using a bytecode interpreter.〔(s48.org ) project website〕 It has a foreign function interface for calling functions from C〔(Mixing Scheme 48 and C ), Chapter 8 in manual for version 1.8〕 and comes with a regex library,〔(5.28 Regular Expressions ), in manual for version 1.8〕 and a POSIX interface.〔(Access to POSIX ), Chapter 9 in manual for version 1.8〕 It is supported by SLIB, the portable Scheme library and is the basis for Scsh, the Scheme shell.〔 It has been used in academic research 〔(Final shift for call/cc:: direct implementation of shift and reset )〕 It is called "Scheme 48" because the first version was written in 48 hours in August 1986.〔(JAR's Unofficial Scheme 48 Page ) at developer's web site〕 The authors now say it is intended to be understood in 48 hours. Scheme 48 uses a Virtual Machine to interpret the bytecode, which is written in a restricted dialect of Scheme called PreScheme, which can be translated to C and compiled to a native binary. ==References== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scheme 48」の詳細全文を読む スポンサード リンク
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