Great point with respect to the '*' quantifier for the character class.

The OP's example, which uses the '*' quantifier would, of course, allow NAN's to be parsed as numbers. For example: "--eeeeeeeeeee1" would be accepted as a number when it's definitely not (although perl could evaluate that string in numeric context giving it a value of 1). I didn't attempt to address that issue, but it goes to punctuate your next point which is.....

Regex::Common is a nice resource too. If there's a resource that knows how to parse numbers, why write ones own number parser when it (a) takes more time, and (b) possibly introduces bugs? Regex::Common is the answer to both 'a' and 'b'.


Dave

In reply to Re^3: Extraction number from Text by davido
in thread Extraction number from Text by Anonymous Monk

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