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Re: st: Extracting substrings from variables.


From   brendan.halpin@ul.ie (Brendan Halpin)
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Extracting substrings from variables.
Date   Fri, 25 May 2012 13:14:59 +0100

On Fri, May 25 2012, Nick Cox wrote:

> It's a motto of mine always to try something simpler before I try
> regex machinery. (Nothing against regex, just a preference to use
> something simpler when that suffices; and I've seen so many struggling
> with regex that this preference is supported. It's also true that you
> won't learn regex without trying it.)

The late Eric Naggum used to say "if you think a regexp is the solution
to your problem, you have two problems", but under certain circumstances
regexps are expressive, and readable once you know the syntax. They're
also portable to other contexts. 

Brendan
-- 
Brendan Halpin,   Department of Sociology,   University of Limerick,   Ireland
Tel: w +353-61-213147  f +353-61-202569  h +353-61-338562;  Room F1-009 x 3147
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http://teaching.sociology.ul.ie/bhalpin/wordpress         twitter:@ULSociology
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