On Fri, 31 Mar 2006, Julian Mehnle wrote:
Matthew(_dot_)van(_dot_)Eerde(_at_)hbinc(_dot_)com wrote:
toplabel =
( *alphanum alpha *alphanum ) /
( 1*alphanum "-" *( alphanum / "-" ) alphanum )
Very good! Does anyone DISagree that this is equivalent to the USEFOR
definition?
I believe that translates to the following python regex:
r'([a-z0-9]*[a-z][a-z0-9]*$)|([a-z0-9]{1}-[a-z0-9-]*[a-z0-9]$)'
Which applies to some test cases gives:
abc Good
123 Fail
3D Good
1-1 Good
1--1 Good
-1 Fail
a- Fail
1 Fail
So it seems ok.
--
Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
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