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-- Generated by re2hs
{-# LANGUAGE RecordWildCards #-}
-- re2hs $INPUT -o $OUTPUT -i
{-# OPTIONS_GHC -Wno-unused-record-wildcards #-}
{-# LANGUAGE OverloadedStrings #-}
import Control.Monad (when)
import Data.ByteString (ByteString, index)
data Number = INum | FNum | NNaN deriving (Eq)
data State = State {
_yyinput :: ByteString,
_yycursor :: Int,
_yymarker :: Int,
_yyaccept :: Int
}
yy0 :: State -> Number
yy0 State{..} =
let yych = index _yyinput _yycursor in
let __ = _yycursor + 1 in let _yycursor = __ in
case yych of
_c | 0x2E == _c ->
yy3 State{..}
_c | 0x30 == _c ->
yy4 State{..}
_c | 0x31 <= _c && _c <= 0x39 ->
yy5 State{..}
_c | True ->
yy1 State{..}
yy1 :: State -> Number
yy1 State{..} =
yy2 State{..}
yy2 :: State -> Number
yy2 State{..} =
NNaN
yy3 :: State -> Number
yy3 State{..} =
let yych = index _yyinput _yycursor in
case yych of
_c | 0x30 <= _c && _c <= 0x39 ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy7 State{..}
_c | True ->
yy2 State{..}
yy4 :: State -> Number
yy4 State{..} =
let _yyaccept = 0 in
let _yymarker = _yycursor in
let yych = index _yyinput _yycursor in
case yych of
_c | 0x2E == _c ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy7 State{..}
_c | 0x30 <= _c && _c <= 0x39 ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy9 State{..}
_c | 0x45 == _c || 0x65 == _c ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy11 State{..}
_c | True ->
yy2 State{..}
yy5 :: State -> Number
yy5 State{..} =
let _yyaccept = 1 in
let _yymarker = _yycursor in
let yych = index _yyinput _yycursor in
case yych of
_c | 0x2E == _c ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy7 State{..}
_c | 0x30 <= _c && _c <= 0x39 ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy5 State{..}
_c | 0x45 == _c || 0x65 == _c ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy11 State{..}
_c | True ->
yy6 State{..}
yy6 :: State -> Number
yy6 State{..} =
INum
yy7 :: State -> Number
yy7 State{..} =
let _yyaccept = 2 in
let _yymarker = _yycursor in
let yych = index _yyinput _yycursor in
case yych of
_c | 0x30 <= _c && _c <= 0x39 ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy7 State{..}
_c | 0x45 == _c || 0x65 == _c ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy11 State{..}
_c | True ->
yy8 State{..}
yy8 :: State -> Number
yy8 State{..} =
FNum
yy9 :: State -> Number
yy9 State{..} =
let yych = index _yyinput _yycursor in
case yych of
_c | 0x2E == _c ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy7 State{..}
_c | 0x30 <= _c && _c <= 0x39 ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy9 State{..}
_c | 0x45 == _c || 0x65 == _c ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy11 State{..}
_c | True ->
yy10 State{..}
yy10 :: State -> Number
yy10 State{..} =
let _yycursor = _yymarker in
case _yyaccept of
_c | 0 == _c ->
yy2 State{..}
_c | 1 == _c ->
yy6 State{..}
_c | True ->
yy8 State{..}
yy11 :: State -> Number
yy11 State{..} =
let yych = index _yyinput _yycursor in
case yych of
_c | 0x2B == _c || 0x2D == _c ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy12 State{..}
_c | 0x30 <= _c && _c <= 0x39 ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy13 State{..}
_c | True ->
yy10 State{..}
yy12 :: State -> Number
yy12 State{..} =
let yych = index _yyinput _yycursor in
case yych of
_c | 0x30 <= _c && _c <= 0x39 ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy13 State{..}
_c | True ->
yy10 State{..}
yy13 :: State -> Number
yy13 State{..} =
let yych = index _yyinput _yycursor in
case yych of
_c | 0x30 <= _c && _c <= 0x39 ->
let __ = _yycursor + 1 in let _yycursor = __ in
yy13 State{..}
_c | True ->
yy8 State{..}
lexer :: State -> Number
lexer State{..} =
yy0 State{..}
main :: IO ()
main = do
let test s n = do
let st = State {
_yyinput = s,
_yycursor = 0,
_yymarker = 0,
_yyaccept = 0}
when (lexer st /= n) $ error "failed"
test "123\0" INum
test "123.4567\0" FNum
|
