[Zope-CMF] Re: [dev] _checkEmail issues

[yuppie]

Hi!


Paul Winkler wrote:
> On Fri, Oct 20, 2006 at 10:03:03PM +0100, Martin Aspeli wrote:
>>> The complete regex would look like this:
>>>
>>> re.compile(r'^([\w!#$%&\'*+\-/=?^`{|}~]+(\.[\w!#$%&\'*+\-/=?^`{|}~]+)*'
>>>           r'|"[^(\|")]*")@[\w-]+(\.[\w-]+)+$')
>>
>> That is possibly the ugliest sequence of characters I have ever seen.
> 
> Heh. There are lots of regexes floating around that attempt to solve
> email.  For example
> http://regexlib.com/DisplayPatterns.aspx?cattabindex=0&categoryId=1
> 
> If I were doing it from scratch I'd break it into manageable
> chunks and use simpler regexes on the fragments.
> Split on '@' for a start.  Trying to do something as non-regular
> as email addresses with one regular expression just hurts my head
> too much.

I did not plan to reinvent the wheel. But too many inadequate regexes 
are floating around. So writing a new one seemed to be easier than 
finding a good existing one.

I hope the two regexes I checked in will do the job:
http://svn.zope.org/CMF/trunk/CMFDefault/utils.py?view=diff&r1=70883&r2=70882


Cheers,

	Yuppie