Launchpad automatic translations update.

[odoo/odoo.git] / addons / base_vat / base_vat.py

diff --git a/addons/base_vat/base_vat.py b/addons/base_vat/base_vat.py
index 69b312e..6393c0a 100644 (file)
--- a/addons/base_vat/base_vat.py
+++ b/addons/base_vat/base_vat.py
@@ -23,6 +23,9 @@ import string
 
 from osv import osv, fields
 from tools.translate import _
+from tools.misc import ustr
+import re
+import datetime
 
 _ref_vat = {
     'be': 'BE0477472701', 'at': 'ATU12345675',
@@ -39,7 +42,7 @@ _ref_vat = {
     'pt': 'PT123456789', 'ro': 'RO1234567897',
     'se': 'SE123456789701', 'si': 'SI12345679',
     'sk': 'SK0012345675', 'el': 'EL12345670',
-    'mx': 'MXABC123456T1B'
+    'mx': 'MXABCD831230T1B',
 
             }
 
@@ -1072,17 +1075,36 @@ class res_partner(osv.osv):
                 return False
         return True
 
+    __check_vat_mx_re = re.compile(r"(?P<primeras>[A-Za-z\xd1\xf1&]{3,4})" \
+                                    r"[ \-_]?" \
+                                    r"(?P<ano>[0-9]{2})(?P<mes>[01][0-9])(?P<dia>[0-3][0-9])" \
+                                    r"[ \-_]?" \
+                                    r"(?P<code>[A-Za-z0-9&\xd1\xf1]{3})$")
+    
     def check_vat_mx(self, vat):
+        ''' Mexican VAT verification
+        
+        Verificar RFC México
         '''
-        Verificar RFC méxico
-        '''
-        if not 12 <= len(vat) <= 13:
-            return False
-        elif len(vat)==12 and not vat[:3].isalpha() | vat[3:9].isdigit() | vat[-3:].isalnum():
+        # we convert to 8-bit encoding, to help the regex parse only bytes
+        vat = ustr(vat).encode('iso8859-1')
+        m = self.__check_vat_mx_re.match(vat)
+        if not m:
+            #No valid format
             return False
-        elif len(vat)==13 and not vat[:4].isalpha() | vat[4:10].isdigit() | vat[-3:].isalnum():
+        try:
+            ano = int(m.group('ano'))
+            if ano > 30:
+                ano = 1900 + ano
+            else:
+                ano = 2000 + ano
+            datetime.date(ano, int(m.group('mes')), int(m.group('dia')))
+        except ValueError:
             return False
+        
+        #Valid format and valid date
         return True
+        
 res_partner()
 
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: