char package:turtle

char :: Char -> Pattern Char
turtle Turtle.Pattern
Match a specific character 
>>> match (char '1') "1"
"1"

>>> match (char '2') "1"
""
chars :: Pattern Text
turtle Turtle.Pattern
Like star dot or star anyChar, except more efficient
chars1 :: Pattern Text
turtle Turtle.Pattern
Like plus dot or plus anyChar, except more efficient
anyChar :: Pattern Char
turtle Turtle.Pattern
Match any character 
>>> match anyChar "1"
"1"

>>> match anyChar ""
""
notChar :: Char -> Pattern Char
turtle Turtle.Pattern
Match any character except the given one 
>>> match (notChar '2') "1"
"1"

>>> match (notChar '1') "1"
""
countChars :: Integral n => Fold Line n
turtle Turtle.Prelude
Count the number of characters in the stream (like wc -c) This uses the convention that the elements of the stream are implicitly ended by newlines that are one character wide
isCharacterDevice :: FileStatus -> Bool
turtle Turtle.Prelude
Checks if this file is a character device.