Update heuristic nameserver regex to remove false positives and partial matches

pythonwhois/__init__.py

@@ -41,7 +41,7 @@ grammar = {
 					 'Record maintained by:\s?(?P<val>.+)',
 					 'Registration Service Provided By:\s?(?P<val>.+)'],
 		'whois_server':		['Registrar Whois:\s?(?P<val>.+)'],
-		'name_servers':		['(?P<val>d?ns[0-9]+\.([a-z0-9-]+\.)+[a-z0-9]+)',
+		'name_servers':		['(?P<val>[a-z]+d?ns[0-9]+\.([a-z0-9-]+\.)+[a-z0-9]+)',
 					 '(?P<val>[a-z0-9-]+\.d?ns[0-9]*\.([a-z0-9-]+\.)+[a-z0-9]+)',
 					 '(?P<val>([a-z0-9-]+\.)+[a-z0-9]+)(\s+([0-9]{1,3}\.){3}[0-9]{1,3})'],
 		'emails':		['(?P<val>[\w.-]+@[\w.-]+\.[\w]{2,4})']

test.py

@@ -9,7 +9,8 @@ testlist = open("testlist.txt").readlines()
 #	if result['updated_date'] is None:
 #		print "WHOIS for %s does not contain an update date?" % line
 
-result = pythonwhois.whois("google.com")
+#result = pythonwhois.whois("google.com")
+result = pythonwhois.whois(sys.argv[1])
 print result
 		
 #print "Creation date: ",