{-# LINE 1 "templates/wrappers.hs" #-}
{-# LINE 1 "templates/wrappers.hs" #-}
{-# LINE 1 "<built-in>" #-}
{-# LINE 1 "<command line>" #-}
{-# LINE 1 "templates/wrappers.hs" #-}
-- -----------------------------------------------------------------------------
-- Alex wrapper code.
--
-- This code is in the PUBLIC DOMAIN; you may copy it freely and use
-- it for any purpose whatsoever.



import qualified Data.ByteString.Lazy.Char8 as ByteString









-- -----------------------------------------------------------------------------
-- The input type

{-# LINE 35 "templates/wrappers.hs" #-}

{-# LINE 51 "templates/wrappers.hs" #-}

-- -----------------------------------------------------------------------------
-- Token positions

-- `Posn' records the location of a token in the input text.  It has three
-- fields: the address (number of chacaters preceding the token), line number
-- and column of a token within the file. `start_pos' gives the position of the
-- start of the file and `eof_pos' a standard encoding for the end of file.
-- `move_pos' calculates the new position after traversing a given character,
-- assuming the usual eight character tab stops.

{-# LINE 74 "templates/wrappers.hs" #-}

-- -----------------------------------------------------------------------------
-- Default monad

{-# LINE 162 "templates/wrappers.hs" #-}


-- -----------------------------------------------------------------------------
-- Monad (with ByteString input)

{-# LINE 251 "templates/wrappers.hs" #-}


-- -----------------------------------------------------------------------------
-- Basic wrapper

{-# LINE 273 "templates/wrappers.hs" #-}


-- -----------------------------------------------------------------------------
-- Basic wrapper, ByteString version


type AlexInput = (Char,ByteString.ByteString)

alexGetChar (_, cs) | ByteString.null cs = Nothing
                    | otherwise          = Just (ByteString.head cs, (ByteString.head cs, ByteString.tail cs))

alexInputPrevChar (c,_) = c

-- alexScanTokens :: String -> [token]
alexScanTokens str = go ('\n',str)
  where go inp@(_,str) =
          case alexScan inp 0 of
                AlexEOF -> []
                AlexError _ -> error "lexical error"
                AlexSkip  inp' len     -> go inp'
                AlexToken inp' len act -> act (ByteString.take (fromIntegral len) str) : go inp'




{-# LINE 322 "templates/wrappers.hs" #-}


-- -----------------------------------------------------------------------------
-- Posn wrapper

-- Adds text positions to the basic model.

{-# LINE 339 "templates/wrappers.hs" #-}


-- -----------------------------------------------------------------------------
-- Posn wrapper, ByteString version

{-# LINE 354 "templates/wrappers.hs" #-}


-- -----------------------------------------------------------------------------
-- GScan wrapper

-- For compatibility with previous versions of Alex, and because we can.