Fix email regex issue 140 (#411)

Author: cwisdo

src/validators/email.py

@@ -85,11 +85,15 @@ def email(
         )
         if re.match(
             # extended latin
-            r"(^[\u0100-\u017F\u0180-\u024F]"
+            r"(^[\u0100-\u017F\u0180-\u024F\u00A0-\u00FF]"
             # dot-atom
-            + r"|[-!#$%&'*+/=?^_`{}|~0-9a-z]+(\.[-!#$%&'*+/=?^_`{}|~0-9a-z]+)*$"
+            + r"|[\u0100-\u017F\u0180-\u024F\u00A0-\u00FF0-9a-z!#$%&'*+/=?^_`{}|~\-]+"
+            + r"(\.[\u0100-\u017F\u0180-\u024F\u00A0-\u00FF0-9a-z!#$%&'*+/=?^_`{}|~\-]+)*$"
             # quoted-string
-            + r'|^"([\001-\010\013\014\016-\037!#-\[\]-\177]|\\[\011.])*"$)',
+            + r'|^"('
+            + r"[\u0100-\u017F\u0180-\u024F\u00A0-\u00FF\001-\010\013\014\016-\037"
+            + r"!#-\[\]-\177]|\\[\011.]"
+            + r')*")$',
             username_part,
             re.IGNORECASE,
         )

tests/test_email.py

@@ -48,6 +48,9 @@ def test_returns_true_on_valid_email(value: str):
         ('"test@test"@example.com',),
         # Quoted-string format (CR not allowed)
         ('"\\\012"@here.com',),
+        # Non-quoted space/semicolon not allowed
+        ("stephen smith@example.com",),
+        ("stephen;smith@example.com",),
     ],
 )
 def test_returns_failed_validation_on_invalid_email(value: str):