Re: The length of search

* Arto Pastinen wrote:

> Why:
> 
> RE re = new RE([:alnum:]{3,8});
> re.match("123456789");
> 
> .. returns true?

Because there are 3-8 [:alnum:] characters in your string.

> .. and is there any way to get false current situation?

re.match("12");

> I need to make some security checks for form parameters, and
> i need to check that parameter contains 3-8 characters, and regexp
> seems quite handy for that.
 
Not more, not less? I think you need lookahead for this task.

--