a little about regex

[Rob Wolfe]

Fulvio wrote:

> Great,  it works perfectly. I found my errors.
> I didn't use r ahead of the patterns and i was close to the 'allow' pattern
> but didn't give positive result and KregexEditor reported wrong way. This
> specially because of '<' inside the stream. I thing that is not a normal
> regex input. It's only python valid. Am I right?

The sequence inside "(?...)" is an extension notation specific to
python.

Regards,
Rob