Distribution.Parsec.LexerMonad

Documentation

type InputStream = ByteString

data LexState

Constructors

LexState

Fields

• curPos :: !Position

  position at current input location

• curInput :: !InputStream

  the current input

• curCode :: !StartCode

  lexer code

• warnings :: [LexWarning]

data LexResult a

Constructors

LexResult !LexState a

newtype Lex a

Constructors

Lex

Fields

• unLex :: LexState -> LexResult a

Instances

Monad Lex

Defined in Distribution.Parsec.LexerMonad

Methods

(>>=) :: Lex a -> (a -> Lex b) -> Lex b

(>>) :: Lex a -> Lex b -> Lex b

return :: a -> Lex a

fail :: String -> Lex a

Functor Lex

Defined in Distribution.Parsec.LexerMonad

Methods

fmap :: (a -> b) -> Lex a -> Lex b

(<$) :: a -> Lex b -> Lex a

Applicative Lex

Defined in Distribution.Parsec.LexerMonad

Methods

pure :: a -> Lex a

(<*>) :: Lex (a -> b) -> Lex a -> Lex b

liftA2 :: (a -> b -> c) -> Lex a -> Lex b -> Lex c

(*>) :: Lex a -> Lex b -> Lex b

(<*) :: Lex a -> Lex b -> Lex a

execLexer :: Lex a -> InputStream -> ([LexWarning], a)

Execute the given lexer on the supplied input stream.

getPos :: Lex Position

setPos :: Position -> Lex ()

adjustPos :: (Position -> Position) -> Lex ()

getInput :: Lex InputStream

setInput :: InputStream -> Lex ()

getStartCode :: Lex Int

setStartCode :: Int -> Lex ()

data LexWarning

Constructors

LexWarning !LexWarningType !Position

Instances

Show LexWarning

Defined in Distribution.Parsec.LexerMonad

Methods

showsPrec :: Int -> LexWarning -> ShowS

show :: LexWarning -> String

showList :: [LexWarning] -> ShowS

data LexWarningType

Constructors

LexWarningNBSP

Encountered non breaking space

LexWarningBOM

BOM at the start of the cabal file

LexWarningTab

Leading tags

Instances

Eq LexWarningType

Defined in Distribution.Parsec.LexerMonad

Methods

(==) :: LexWarningType -> LexWarningType -> Bool

(/=) :: LexWarningType -> LexWarningType -> Bool

Ord LexWarningType

Defined in Distribution.Parsec.LexerMonad

Methods

compare :: LexWarningType -> LexWarningType -> Ordering

(<) :: LexWarningType -> LexWarningType -> Bool

(<=) :: LexWarningType -> LexWarningType -> Bool

(>) :: LexWarningType -> LexWarningType -> Bool

(>=) :: LexWarningType -> LexWarningType -> Bool

max :: LexWarningType -> LexWarningType -> LexWarningType

min :: LexWarningType -> LexWarningType -> LexWarningType

Show LexWarningType

Defined in Distribution.Parsec.LexerMonad

Methods

showsPrec :: Int -> LexWarningType -> ShowS

show :: LexWarningType -> String

showList :: [LexWarningType] -> ShowS

addWarning :: LexWarningType -> Lex ()

Add warning at the current position

toPWarnings :: [LexWarning] -> [PWarning]