On Nov 13, Nandita Mullapudi said:
>This has to be really easy- but I cant get it to work:
>I want my script to carry out a loop only if the number stored in
>$diff is positive,
>so i say
>if ($diff =~m/^[-\d+]/) {blah blah}
>but it won't work. why?
Well, your regex is matching either a digit, a -, or a + as the first
character in $diff. If you wanted to match a POSITIVE number, you'd be
better with /^+?\d/, but WHY are you using a regex for a MATH problem?
if ($diff > 0) { ... }
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Jeff "japhy" Pinyan [EMAIL PROTECTED] http://www.pobox.com/~japhy/
RPI Acacia brother #734 http://www.perlmonks.org/ http://www.cpan.org/
<stu> what does y/// stand for? <tenderpuss> why, yansliterate of course.
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