Text.Read.Lex

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

Documentation

data Lexeme

Haskell lexemes.

Constructors

Char Char

Character literal

String String

String literal, with escapes interpreted

Punc String

Punctuation or reserved symbol, e.g. (, ::

Ident String

Haskell identifier, e.g. foo, Baz

Symbol String

Haskell symbol, e.g. >>, :%

Int Integer

Integer literal

Rat Rational

Floating point literal

EOF

Instances

Eq Lexeme

Read Lexeme

Show Lexeme

lex :: ReadP Lexeme

hsLex :: ReadP String

Haskell lexer: returns the lexed string, rather than the lexeme

lexChar :: ReadP Char

readIntP :: Num a => a -> (Char -> Bool) -> (Char -> Int) -> ReadP a

readOctP :: Num a => ReadP a

readDecP :: Num a => ReadP a

readHexP :: Num a => ReadP a