Text.Read.Lex (original) (raw)

Description

The cut-down Haskell lexer, used by Text.Read

Synopsis

• data Lexeme
  • = Char Char
  • | String String
  • | Punc String
  • | Ident String
  • | Symbol String
  • | Number Number
  • | EOF
• data Number
• numberToInteger :: Number -> Maybe Integer
• numberToFixed :: Integer -> Number -> Maybe (Integer, Integer)
• numberToRational :: Number -> Rational
• numberToRangedRational :: (Int, Int) -> Number -> Maybe Rational
• lex :: ReadP Lexeme
• expect :: Lexeme -> ReadP ()
• hsLex :: ReadP String
• lexChar :: ReadP Char
• readBinP :: (Eq a, Num a) => ReadP a
• readIntP :: Num a => a -> (Char -> Bool) -> (Char -> Int) -> ReadP a
• readOctP :: (Eq a, Num a) => ReadP a
• readDecP :: (Eq a, Num a) => ReadP a
• readHexP :: (Eq a, Num a) => ReadP a
• isSymbolChar :: Char -> Bool

Documentation

data Number Source #

Since: base-4.6.0.0

Instances

Instances details