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-- Generated by re2hs
{-# LANGUAGE RecordWildCards #-}
-- re2hs $INPUT -o $OUTPUT -ib
{-# LANGUAGE OverloadedStrings #-}
{-# OPTIONS_GHC -Wno-unused-record-wildcards #-}
import Data.Array (Array, array, (!))
import Data.Bits ((.&.))
import Data.Word (Word8)
import Data.ByteString (ByteString, index)
data State = State {
_yyinput :: ByteString,
_yycursor :: Int
}
yy0 :: State -> Bool
yy0 State{..} =
let yych = index _yyinput _yycursor in
let __ = _yycursor + 1 in let _yycursor = __ in
if yych <= 0x30 then yy1 State{..}
else if yych <= 0x39 then yy2 State{..}
else yy1 State{..}
yy1 :: State -> Bool
yy1 State{..} =
False
yy2 :: State -> Bool
yy2 State{..} =
let yych = index _yyinput _yycursor in
if (yybm ! (0 + fromIntegral yych) .&. 128) /= 0 then
let __ = _yycursor + 1 in let _yycursor = __ in
yy2 State{..}
else
yy3 State{..}
yy3 :: State -> Bool
yy3 State{..} =
True
lexer :: State -> Bool
lexer State{..} =
yy0 State{..}
yybm :: Array Int Word8
yybm = array (0, 256 - 1) $ Prelude.zip [0 .. 256 - 1] [
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0]
main :: IO ()
main = case lexer State{_yyinput = "1234\0", _yycursor = 0} of
True -> return ()
False -> error "lexer failed!"
|
