allows a DomainnameOption to start with a number

test/test_config_domain.py

@@ -16,7 +16,7 @@ def test_domainname():
     raises(ValueError, "c.d = 'toto'")
     c.d = 'toto3.com'
     raises(ValueError, "c.d = 'toto3.3la'")
-    raises(ValueError, "c.d = '3toto.com'")
+    #raises(ValueError, "c.d = '3toto.com'")
     raises(ValueError, "c.d = 'toto.co3'")
     raises(ValueError, "c.d = 'toto_super.com'")
     c.d = 'toto-.com'
@@ -25,6 +25,15 @@ def test_domainname():
     c.f = 'toto.com'
     c.f = 'toto'
 
+def test_domainname_special():
+    """domain name option that starts with a number
+    """
+    d = DomainnameOption('d', '')
+    od = OptionDescription('a', '', [d])
+    c = Config(od)
+    c.read_write()
+    c.d = '1toto.com'
+    c.d = '123toto.com'
 
 def test_domainname_netbios():
     d = DomainnameOption('d', '', type_='netbios')

tiramisu/option.py

@@ -1004,7 +1004,7 @@ class DomainnameOption(Option):
             else:
                 extrachar = '\.'
             end = '+[a-z]*'
-        self._domain_re = re.compile(r'^(?:[a-z][a-z\d\-{0}]{{,{1}}}{2}){3}$'
+        self._domain_re = re.compile(r'^(?:[a-z\d][a-z\d\-{0}]{{,{1}}}{2}){3}$'
                                      ''.format(extrachar, length, extrachar_mandatory, end))
         super(DomainnameOption, self).__init__(name, doc, default=default,
                                                default_multi=default_multi,