revert reformatting of regexes

voluptuous/validators.py

@@ -36,11 +36,13 @@
     import urlparse
 
 # Taken from https://github.com/kvesteri/validators/blob/master/validators/email.py
+# fmt: off
 USER_REGEX = re.compile(
     # start anchor, because fullmatch is not available in python 2.7
     "(?:"
     # dot-atom
-    r"(^[-!#$%&'*+/=?^_`{}|~0-9A-Z]+(\.[-!#$%&'*+/=?^_`{}|~0-9A-Z]+)*$"
+    r"(^[-!#$%&'*+/=?^_`{}|~0-9A-Z]+"
+    r"(\.[-!#$%&'*+/=?^_`{}|~0-9A-Z]+)*$"
     # quoted-string
     r'|^"([\001-\010\013\014\016-\037!#-\[\]-\177]|'
     r"""\\[\001-\011\013\014\016-\177])*"$)"""
@@ -56,11 +58,13 @@
     # tld
     r'(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?$)'
     # literal form, ipv4 address (SMTP 4.1.3)
-    r'|^\[(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}\]$'
+    r'|^\[(25[0-5]|2[0-4]\d|[0-1]?\d?\d)'
+    r'(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}\]$'
     # end anchor, because fullmatch is not available in python 2.7
     r")\Z",
     re.IGNORECASE,
 )
+# fmt: on
 
 __author__ = 'tusharmakkar08'