Article View: comp.lang.prolog
Article #166Re: How to get the n'th element of a list
From: P. Singleton
Date: Thu, 09 Apr 1992 11:52
Date: Thu, 09 Apr 1992 11:52
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From article <rsqauINNbn6@agate.berkeley.edu>, by stolcke@ICSI.Berkeley.EDU (Andreas Stolcke):
> BTW, technically, your constraint "with only one predicate" is of course
> vacuous since your can simulate as many predicates as you want in only
> one predicate.
Presumably, any program could be rewritten as a single predicate, and it
is partly a matter of style how one factors out bits of such a program
into distinct procedures. Are there any meta-programs out there which
rewrite programs to improve (optimise?) their predicatisation? Do the
demands of efficiency, readability and reuseability conflict? Should I
read "The Craft of Prolog"? Wouldn't a structure-editor for Prolog e.g.
allow me to highlight some goals in the body of a procedure and, with
one mouse-click, extract them into a separate procedure, automatically
deciding what arguments are necessary?
----
__ __ Paul Singleton (Mr) JANET: paul@uk.ac.keele.cs
|__) (__ Computer Science Dept. other: paul@cs.keele.ac.uk
| . __). Keele University, Newcastle, tel: +44 (0)782 621111 x7355
Staffs ST5 5BG, ENGLAND fax: +44 (0)782 713082
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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!uknet!keele!csa09 From: csa09@seq1.keele.ac.uk (P. Singleton) Newsgroups: comp.lang.prolog Subject: Re: How to get the n'th element of a list Message-ID: <2508@keele.keele.ac.uk> Date: 9 Apr 92 11:52:07 GMT References: <rsqauINNbn6@agate.berkeley.edu> Organization: University of Keele, England Lines: 20