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Postings from March 2002
I still am not convinced that all of the hoopla about \z is really
necessary. I guess the question I need answered before I go back and change
anything is this: How is the user supposed to enter an extra \n without
exiting the prompt? What I mean is, the only situation in which this could
make a difference is if you concede that a user can somehow enter a \n
character into a prompt without returning that value back to your script.
Otherwise it's your fault if you don't chomp their response.
There's a distinct possibility that I'm wrong here, but I haven't heard
any really good arguments on this.
-----Original Message-----
From: Jeff 'japhy' Pinyan [mailto:jeffp@crusoe.net]
Sent: Monday, March 04, 2002 1:07 PM
To: Dennis G. Wicks
Cc: beginners@perl.org
Subject: Re: Comparing to many possibles
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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