$str =~ /^(?:(?:(?:527[8-9])|(?:52[8-9]\d)|(?:53[0-8]\d)|(?:539[0-1]))
+)$/

[download]

Here is full example ( regex is from there )
http://www.regex-builder.com/example_numeric_regex.pl

In reply to Re: How do I match a number range? by The_Ghost
in thread How do I match a number range? by Anonymous Monk

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