eof package:parsec-class

eof :: forall s (m :: Type -> Type) t u . (Stream s m t, Show t) => ParsecT s u m ()
parsec-class Text.Parsec.Class
This parser only succeeds at the end of the input. This is not a primitive parser but it is defined using notFollowedBy. 
eof  = notFollowedBy anyToken <?> "end of input"
noneOf :: forall s (m :: Type -> Type) u . Stream s m Char => [Char] -> ParsecT s u m Char
parsec-class Text.Parsec.Class
As the dual of oneOf, noneOf cs succeeds if the current character not in the supplied list of characters cs. Returns the parsed character. 
consonant = noneOf "aeiou"
oneOf :: forall s (m :: Type -> Type) u . Stream s m Char => [Char] -> ParsecT s u m Char
parsec-class Text.Parsec.Class
oneOf cs succeeds if the current character is in the supplied list of characters cs. Returns the parsed character. See also satisfy. 
vowel  = oneOf "aeiou"