Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!mcvax!enea!kth!draken!bmc1!kuling!waldau
From: waldau@kuling.UUCP (Mattias Waldau)
Newsgroups: comp.lang.prolog
Subject: Re: Soundex revisited
Message-ID: <822@kuling.UUCP>
Date: 6 Sep 88 08:02:46 GMT
Article-I.D.: kuling.822
References: <305@quintus.UUCP> <7000005@osiris.cso.uiuc.edu>
Reply-To: waldau@kuling.UUCP (Mattias Waldau)
Organization: Dept. of Computer Systems, Uppsala University, Sweden
Lines: 15

Mark Goldfain found a serious bug in the last full first order version
of remove_vowels, and I see no easy fix right now. So the original
version is the only correct one. It just a set of rewrite rules, and
is probably more efficient in an equational language.
 

The soundex-algorithm is not easy specifiable, since it is an
algorithm where we transform A to B, B to C, and the relationship
between A and C is not easy to specify. (What does remove adjancent
identical codes mean after we have removed the vowels?) Therefor I
tried, but I didn't get a clearer description than the corresponding
conventional well written program.

-- 
Mattias Waldau