Re: How do I match a number range?

my $range = join '|', 5278..5391;

my $number = 5300;

print "Matched\n" if $range =~ /\b$number\b/;
[download]

--
Casey

Comment on Re: How do I match a number range? Download Code

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Re: Answer: How do I match a number range? by quidity (Pilgrim) on Nov 28, 2000 at 06:14 UTC
`> my $range = join '\|', 5278..5391; > my $number = 5300; > print "Matched\n" if $range =~ /\b$number\b/;` [download] You want `$number =~ /^($range)$/` instead. Also, you need to create a potentially large list in memory then turn it into a large string. For numbers of this size, this isn't really a problem, but what if you are trying to match unix time values, that's 780k just to match a one day time frame.	[reply] [d/l] [select]
(tye)Re: Answer: How do I match a number range? by tye (Sage) on Nov 28, 2000 at 22:54 UTC
I disagree. If you wanted to see if a number fell within a certain range, then a regex would be a really bad tool to use. However, if you wanted to match all occurances within some larger string of numbers that fell within a certain range, then the pain of using a regex to match a number range might pay off. So I think the original answer was closer to correct than yours. But I think mine is even closer: `/(^\|\D)($range)(\D\|$)/` [download] since the original doesn't find the number in "x5300x". - tye (but my friends call me "Tye")	[reply] [d/l]