Regex for capture two types of patterns [closed]
XXXX-yyyyy+123131331@gmail.com
XXXX+313131313@gmail

/^w+(-w+)?+d+@S+$/

^         # the start of the string
w+       # one or more ascii alhpa-nums
(         # start group 1
  -       #   the literal '-'
  w+     #   one or more ascii alhpa-nums
)?        # end group 1, and make it optional
+        # the literal '+'
d+       # one or more digits
@         # the literal '@'
S+       # one or more non-space chars
$         # the end of the string

^(w+)(?:-w+)?+d+@S+$

/p{Lu}+(-p{Ll}+)?+d+@gmail.com/

/([A-Z0-9._%-]+?)(?:-([A-Z0-9._%]+))?+(d+)@gmail.com/i

p = re.compile(r"([A-Z0-9._%+-]+?)(?:-([A-Z0-9._%+]+))?+(d+)@gmail.com", re.IGNORECASE)
m = p.search("XXXX-yyyy+123131313@gmail.com")
m.groups()
# ('XXXX', 'yyyy', '123131313')

(                 # start capture group 1
  [A-Z0-9._%+-]   # match the characters in the []
  +?              # one or more times, lazy
)                 # end capture group 1
(?:               # start non-capturing group
  -               # match the literal character '-'
  (               # start capture group 2
    [A-Z0-9._%+]  # match the characters in the []
    +             # one or more times
  )               # end capture group 2
)?                # end non-capturing group, matching 1 or 0 times
+                # match the literal character '+'
(                 # start capture group 3
  d+             # match digits [0-9] one or more times
)                 # end capture group 3
@gmail.com       # match the literal characters '@gmail.com'

X.X_X%X+X-X-y.y_y%y+y+123@gmail.com => ('X.X_X%X+X-X', 'y.y_y%y+y', '123')