Re: Help with RegEx?

SparkyGuy <sparkyguy@[EMAIL PROTECTED]
> wrote:

> I have reduced my requirements to just matching input that contains the
> letters "i n t u o" in that order even if interspersed with other
characters.
> 
> 
> The RE I worked out is:
> 
>      [Ii].*[Nn].*[Tt].*[Uu].*[Oo]
> 
> Thanks to all who helped me come to this result. 
> 
> I also need to match input that exceeds 50 characters. I tried several
REs,
> paring it down, eventually, to:
> 
>      .{50}
> 
> It doesn't work. 

That regular expression matches exactly 50 of any combination of
characters. Assuming your input is being processed on a line at a time
basis, it should match any line which contains a minimum of 50
characters.

> This seems like it should be pretty simple, but it's not working. It
works in
> regextester.com's tester, but it isn't working for me. Is there a
simpler (or
> different) way to check for input length? (I presume that my "flavor" of
> regex interpreter isn't accepting this form...)

The {} syntax is only available if your regular expression engine
sup****ts Perl-compatible regular expressions ("PCRE").

A simple regular expression has no way to represent quantity, other than
"zero or more" (*) or "one or more" (+).

To match at least 50 characters in a simple regular expression you would
need to enter 50 periods:

...................................................

-- 
David Empson
dempson@[EMAIL PROTECTED]