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Re: Comparing to many possibles

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From:
Jeff 'japhy' Pinyan
Date:
March 4, 2002 13:06
Subject:
Re: Comparing to many possibles
Message ID:
Pine.GSO.4.21.0203041606020.20827-100000@crusoe.crusoe.net
On Mar 4, Dennis G. Wicks said:

>Is there some perl shorthand that will make it easier to say
>
>	if ( $x eq 'X' || $x eq 'Y' || $x eq 'Z' )

You can use

  if ($x =~ /^(?:X|Y|Z)\z/) { ... }

I side with Randal in warning about the use of $ here where \z is clearly
the proper choice.

-- 
Jeff "japhy" Pinyan      japhy@pobox.com      http://www.pobox.com/~japhy/
RPI Acacia brother #734   http://www.perlmonks.org/   http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
<stu> what does y/// stand for?  <tenderpuss> why, yansliterate of course.
[  I'm looking for programming work.  If you like my work, let me know.  ]


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