PLT MzScheme-Language Manual

How to Design Programs: An Introduction to Programming and Computing

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Unformatted text preview: PLT MzScheme: Language Manual Matthew Flatt (mfl[email protected]) 372 Released December 2007 Copyright notice Copyright c 1995-2007 Matthew Flatt Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Library General Public License, Version 2 published by the Free Software Foundation. A copy of the license is included in the appendix entitled “License.” libscheme: Copyright c 1994 Brent Benson. All rights reserved. Conservative garbage collector: Copyright c 1988, 1989 Hans-J. Boehm, Alan J. Demers. Copyright c 1991-1996 by Xerox Corporation. Copyright c 1996-1999 by Silicon Graphics. Copyright c 1999-2001 by Hewlett Packard Company. All rights reserved. Collector C++ extension by Jesse Hull and John Ellis: Copyright c 1994 by Xerox Corporation. All rights reserved. GNU MP Library: Copyright c 1992, 1993, 1994, 1996 by Free Software Foundation, Inc. GNU lightning: Copyright c 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. Send us your Web links If you use any parts or all of the PLT Scheme package (software, lecture notes) for one of your courses, for your research, or for your work, we would like to know about it. Furthermore, if you use it and publicize the fact on some Web page, we would like to link to that page. Please drop us a line at [email protected] . Evidence of interest helps the DrScheme Project to maintain the necessary intellectual and financial support. We appreciate your help. Thanks Thanks to Brent Benson for libscheme , and to Hans Boehm for the conservative garbage collector and their help. This manual was typeset using L A T E X, SL A T E X, and tex2page . Some typesetting macros were originally taken from Julian Smart’s Reference Manual for wxWindows 1.60: a portable C++ GUI toolkit . This manual was typeset on December 28, 2007. Contents 1 Introduction 1 1.1 MrEd, DrScheme, and mzc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Unicode, Locales, Strings, and Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2.1 Unicode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2.2 Locale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2.3 Encodings and Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Basic Syntax Extensions 5 2.1 Evaluation Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Multiple Return Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Cond and Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4 When and Unless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
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This test prep was uploaded on 02/06/2008 for the course CS 536 taught by Professor Fisler during the Fall '07 term at WPI.

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PLT MzScheme-Language Manual - PLT MzScheme Language Manual...

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