eof package:turtle

eof :: Pattern ()
turtle Turtle.Pattern
Matches the end of input 
>>> match eof "1"
[]

>>> match eof ""
[()]
noneOf :: [Char] -> Pattern Char
turtle Turtle.Pattern
Match anything other than the given characters 
>>> match (noneOf "2a") "1"
"1"

>>> match (noneOf "1a") "1"
""
oneOf :: [Char] -> Pattern Char
turtle Turtle.Pattern
Match any one of the given characters 
>>> match (oneOf "1a") "1"
"1"

>>> match (oneOf "2a") "1"
""