Software resources for this book
(This appendix is the one that appeared in the printed book. A considerably enhanced one can be found here.)
The software that accompanies this text was originally developed in Modula-2, based to some extent on the Pascal code used in Terry (1986). It was subsequently converted to Turbo Pascal, and to C++. Although C++ code is used for most of the illustrations in the text, highly self-consistent source code in all three languages is to be found on the IBM-PC compatible diskette that accompanies the book, along with language-specific implementation notes. The software is also available in other formats - see section A.4.
The C++ source code was mainly developed under MS-DOS using Borland C++ 3.1. It has also been successfully compiled and tested under Linux, using G++, the GNU compiler.
The Turbo Pascal source code was developed to run on any version of Turbo Pascal from 5.5 onwards. However, it makes little use of OOP extensions.
The Modula-2 source code should be immediately usable on PC-based systems using the shareware compiler marketed by Fitted Software Tools (FST), the Stony Brook Modula-2 compiler marketed by Gogesch Micro Systems, Inc., or the TopSpeed Modula-2 compiler developed by Jensen and Partners International (JPI) and now marketed by Clarion Software. It will also compile unchanged under Gardens Point Modula-2 on a wide range of systems.
The software on the diskette is supplied in the form of compressed, self-extracting MS-DOS executable files. There are eight of these files
COMMON.EXE - language independent files
CSOURCES.EXE - sources written in C++
PSOURCES.EXE - sources written in Turbo Pascal
MSOURCES.EXE - sources written in Modula-2
FILEIO.EXE - support library for Modula-2 sources
COCORC.EXE - Coco/R for C/C++
COCORP.EXE - Coco/R for Turbo Pascal
COCORM.EXE - Coco/R for Modula-2
To unpack the software, simply follow the following steps. Example MS-DOS commands are shown; these may need slight alteration depending on the configuration of your computer. Windows users may follow an equivalent sequence of operations from within the File Manager.
MKDIR C:\SRCES
CD C:\SRCES
COPY A:\CSOURCES.EXE C:\SRCES
CSOURCES.EXE
COPY A:\COMMON.EXE C:\SRCES
CSOURCES.EXE
This will create a small directory hierarchy under the C:\SRCES directory, in which various subdirectories will appear, usually one for each chapter. For example, you will the find the source code for the programs in Chapter 10 in the directory C:\SRCES\CHAP10\CPP (for the C++ versions) or the directory C:\SRCES\CHAP10\MODULA (for the Modula-2 versions). Once you have unpacked the system, read the file C:\SRCES\README.1ST for further details on how the directories are laid out.
You may unpack all three of the language specific sources into the same directory tree if you wish - the C++, Modula-2 and Pascal sources are stored in separate directories under the directory for each chapter.
MKDIR C:\COCO
CD C:\COCO
COPY A:\COCORC.EXE C:\COCO
COCORC.EXE
This will create a small directory hierarchy under the C:\COCO directory, in which various subdirectories will appear, containing the various components of Coco/R. Once you have unpacked the system, read the file C:\COCO\README.1ST for further details on how the directories are laid out, and how to complete the installation of Coco/R so that it can be executed easily.
The self-extracting files on the diskette were compressed and packed using the freely available program LHA.EXE developed by Haruyasu Yoshizaki. In terms of the distribution agreement for this program, the complete package for LHA.EXE is itself supplied as a self-extracting executable, LHA213.EXE. You are quite welcome to unpack this file as well, although it is not needed for the operations described above. Further to comply with the distribution agreement, the copyright notice for this package is printed below
4. Our distribution Policy
This software, this document and LHA.EXE, is a copyright-reserved free program. You may use, copy
and distribute this software free of charge under the following conditions.
1. Never change Copyright statement.
2. The enclosed documents must be distributed with as a package.
3. When you have changed the program, or implemented the program for other OS or environment, then you
must specify the part you have changed. Also make a clear statement as to your name and MAIL
address or phone number.
4. The author is not liable for any damage on your side caused by the use of this program.
5. The author has no duty to remedy for the deficiencies of the program.
6. When you are to distribute this software with publications or with your product, you have to print
the copyright statement somewhere on the disk or on the package. You cannot distribute this
software with copyprotected products.
The compiler generator Coco/R used in this book was originally developed in Oberon by Hanspeter Mössenböck, who also did a port to Modula-2 for the Apple MacMeth system. A further port was done to TopSpeed Modula-2 by Marc Brandis and Christof Brass. This was refined and extended by the author in conjunction with John Gough and Hanspeter Mössenböck, to the point where a single version runs on most Modula-2 compilers available under MS-DOS, as well as the Mocka and Gardens Point compilers available for Unix (and other) systems, including Linux and Free BSD.
A port of Coco/R to Turbo Pascal was done by the author in conjunction with Volker Pohlers.
Coco/R was ported to C by Francisco Arzu, yielding a version that can generate either C or C++ compilers.
The Modula-2 version of Coco/R is supplied as shareware, and is free to academic sites. Other users should contact Professor Mössenböck at the address below to make licensing arrangements.
Prof. Hanspeter Mössenböck
Institute of Computer Science
University of Linz
Alternbergerstr 69,
A-4040 Linz, Austria
Tel: +43-732-2468-9700
e-mail: moessenboeck@ssw.uni-linz.ac.at
Source code for the programs in this book, and various related other files of interest are available by anonymous ftp from the author's server site
ftp://cs.ru.ac.za/pub/languages.
Look for the file READ.ME for details of what to get, how to unpack the files, and for differences from the software on the diskette.
The latest versions of Coco/R for a variety of languages and operating systems should be available from the following servers
Europe: ftp://ftp.ssw.uni-linz.ac.at/pub/Coco
USA: ftp://ftp.psg.com/pub/modula-2/coco
Central America: ftp://uvg.edu.gt/pub/coco
Australia: ftp://ftp.fit.qut.edu.au/pub/coco
South Africa: ftp://cs.ru.ac.za/pub/coco
Look for the files README.1st and READ.ME for details of what to get and how to unpack the kits.
The original report on Coco/R (Mössenböck, 1990a) can be obtained from
ftp://ftp.ssw.uni-linz.ac.at/pub/Papers/Coco.Report.ps.z
ftp://cs.ru.ac.za/pub/coco/Coco.Report.ps.z
The PCCTS compiler construction kit mentioned in Chapter 10 is available from
ftp://ftp.parr-research.com:/pub/pccts
mtc, the Modula-2 to C translator program mentioned in Chapter 2 is available by anonymous ftp from
ftp://ftp.psg.com:/pub/modula-2/grosch/mtc.tar.Z
ftp://ftp.ira.uka.de:/pub/programming/cocktail/mtc.tar.Z
p2c, the Pascal to C translator program mentioned in Chapter 2, and cperf, the perfect hash function generator mentioned in Chapter 14, are available by anonymous ftp from any of the sites that mirror the Free Software Foundation GNU archives. The primary server for these archives is at prep.ai.mit.edu. Among many others, the Linux sites, such as those at tsx-11.mit.edu, sunsite.unc.edu and src.doc.ic.ac.uk also carry copies of the GNU archives.
Freely available early versions of the Cocktail compiler construction tools mentioned in Chapter 10 may be obtained by anonymous ftp from
ftp://ftp.ira.uka.de/pub/programming/cocktail
ftp://144ftp.info.uni-karlsruhe.de/pub/cocktail
For the commercial version and support, contact Josef Grosch by email at grosch@cocolab.sub.com
Versions of the Gardens Point Modula-2 compiler for DOS, Linux and FreeBSD are available from
ftp://ftp.fit.qut.edu.au/pub/gpm_modula2
ftp://ftp.psg.com/pub/modula-2/gpm
Versions of the Mocka Modula-2 compiler for Linux and FreeBSD are available from
ftp://144ftp.info.uni-karlsruhe.de/pub/mocka
The shareware FST Modula-2 compiler for MS-DOS systems is available by anonymous ftp from
ftp://ftp.psg.com/pub/modula-2/fst/fst-40s.lzh
ftp://cs.ru.ac.za/pub/languages/fst-40s.lzh
In case of difficulty, consult the author at the address given below.
Pat Terry
Computer Science Department,
Rhodes University
GRAHAMSTOWN 6140, South Africa
Tel: +27-46-6038292
e-mail: cspt@cs.ru.ac.za
When this book was first published, standardized I/O for Modula-2 was not yet widely available (and was incompatible with extant Modula-2 compilers). The Modula-2 source code on the diskette attempts to get around this problem by providing (another!) I/O module, called FileIO. The definition module for FileIO is acceptable to all the compilers mentioned above; implementations have been supplied for each that differ internally only in a few places.
On the diskette you will find a self-extracting file FILEIO.EXE that contains the sources of FileIO for a variety of MS-DOS compilers. You will need to install the version of FileIO that matches your compiler.
MD C:\FILEIO
CD C:\FILEIO
A:\FILEIO.EXE
This will create a small directory hierarchy under the C:\FILEIO directory, in which various subdirectories will appear, one for each compiler.
In the C:\FILEIO directory you will find the definition module FILEIO.DEF, and in a subdirectory of C:\FILEIO you will find the implementation module FILEIO.MOD. You will need to proceed as follows, on the assumption that you have a "working" directory C:\WORK in which you normally develop programs (or, preferably, install FileIO in the library directory or directories for your Modula-2 compiler).
CD C:\WORK
COPY C:\FILEIO\FILEIO.DEF
COPY C:\FILEIO\xxx
where xxx =
JPI (TopSpeed compilers)
FST (Fitted Systems Tools compilers)
LOG (Logitech compilers)
STO (StonyBrook compilers)
GPMPC (Gardens Point PC compiler)
Follow this by compiling FILEIO.DEF and FILEIO.MOD.
FileIO provides the usual services for opening and closing text files, and for reading and writing strings, words, whole numbers and line marks to such files. It can also handle random access binary files, as block read and write operations are provided. In addition there are some utility procedures, for obtaining command line parameters and environment strings, and for the output of dates and times. The module is of fairly widespread applicability beyond the confines of this text, and is compatible with the modules generated by Coco/R (which assumes the module to be available). As an example of a library module it is really rather too large, but has been developed in this way to minimize the number of non-portable sections and modules needed for implementing the programs in the book. The sources supplied will act as models of implementations for compilers not mentioned above. In case of difficulty in this regard, please contact the author.
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