Re^2: Range of numbers

I wouldn't mix ranges with numbers and \d in a regexp, unless you know your perl is older than 5.6.

Since the previous millennium, Perl has supported Unicode in some way or another. Which means that while [0-9] matches 10 characters, \d matches many more. Several hundreds of different characters in 5.10. Your suggested pattern,

    /^(2[5-9]\d|[3-6]\d\d|7[0-2]\d|730)$/
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matches 333, 33۳ and 3۳3, but not ۳33 (۳ is Arabic 3).

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Re^3: Range of numbers by psini (Deacon) on Oct 10, 2008 at 21:02 UTC
++ Thank you for the answer. I never thought that Unicode can be an issue in recognizing numbers. Rule One: "Do not act incautiously when confronting a little bald wrinkly smiling man."	[reply]