Re: Help with RegEx?

> 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:
> 
> ..................................................

The author of the application within which I'm using RegEx to develop
filters 
tells me that the app uses this RegEx library:

<http://arglist.com/regex/>

This is what I found through testing:

Using "." (a single period) matches all input, regardless of length. 
Apparently it is being interpreted equivalent to ".*"

Multiple uses of "." (ie, "......") are redundant. 

This is interesting:

"Matches RE '.{1,50}' " matches nothing
"Does not match RE '.{1,50}' " matches all input

More tests:

[Ee] matches all input with at least 1 E or e. 

[Ee]{1,3} matches nothing, although there's plenty of valid input. 

[Ee][Ee][Ee] also fails to match anything.

Is my "flavor" of RE interpreter broken? I'd think that at least some of
the 
basic forms should be sup****ted...

Ideas?

Thanks,