Re: Separating algorithms from implementations (long)

jthorn@galileo.thp.univie.ac.at (Jonathan Thornburg)
9 Sep 2000 13:19:29 -0400

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From: jthorn@galileo.thp.univie.ac.at (Jonathan Thornburg)
Newsgroups: comp.compilers
Date: 9 Sep 2000 13:19:29 -0400
Organization: Universitaet Wien (Vienna, Austria) / Institut fuer Theoretische Physik
References: 00-08-124 00-09-017 00-09-064
Summary: Kernighan & Pike discuss comma-separated-values parsing in detail
Keywords: assembler, parse, books

Toon Moene <toon@moene.indiv.nluug.nl> wrote:
>I once
>needed a "parser" that would read a comma separated string of
>keyword=value pairs in a VAX assembler program.
>
>It just took one loop over
>
> MATCHC ....
> MOVC3 ....
>
>instructions.
>
>Then I thought, well - lets describe what happens here in C, so that my
>successor knows what I meant to be done here.
>
>After 3 aborted attempts I gave up in horror.


The (excellent) book
The Practice of Programming
by Brian W. Kernighan and Rob Pike.
Addison-Wesley, Inc., 1999.
ISBN 0-201-61586-X.
http://cm.bell-labs.com/cm/cs/tpop/index.html
discusses this problem in detail in chapter 4, and presents
fully-worked-out code in both C and C++.


--
-- Jonathan Thornburg <jthorn@thp.univie.ac.at>
      http://www.thp.univie.ac.at/~jthorn/home.html
      Universitaet Wien (Vienna, Austria) / Institut fuer Theoretische Physik
      [visiting Albert Einstein Institute (Golm, Germany) until Sept 10]

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