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Add missing copyright header + auto-format NumParser.hs
Summary: as title Reviewed By: yuzh174 Differential Revision: D39996261 fbshipit-source-id: 33902b34db68daefc48c03878b8686236ac9ded3
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@ -1,23 +1,27 @@
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-- Copyright (c) 2016-present, Facebook, Inc.
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-- All rights reserved.
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--
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-- This source code is licensed under the BSD-style license found in the
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-- LICENSE file in the root directory of this source tree.
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{-# LANGUAGE DeriveFunctor #-}
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{-# LANGUAGE DeriveFunctor #-}
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module Duckling.Numeral.DE.NumParser (parseNumeral) where
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module Duckling.Numeral.DE.NumParser (parseNumeral) where
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import Prelude
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import Control.Applicative
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import Control.Applicative
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import Data.Char
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import Data.Char
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import Data.List
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import Data.Foldable
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import Data.Foldable
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import Data.List
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import Data.String
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import Data.String
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import Prelude
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newtype Parser a
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newtype Parser a = Parser {runParser :: String -> Maybe (a, String)}
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= Parser { runParser :: String -> Maybe (a, String) }
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deriving (Functor)
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deriving Functor
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char :: Char -> Parser Char
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char :: Char -> Parser Char
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char c = Parser p
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char c = Parser p
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where
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where
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p [] = Nothing
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p [] = Nothing
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p (x:xs)
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p (x : xs)
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| x == c = Just (x, xs)
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| x == c = Just (x, xs)
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| otherwise = Nothing
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| otherwise = Nothing
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@ -26,7 +30,7 @@ instance Applicative Parser where
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(Parser fp) <*> xp = Parser $ \s ->
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(Parser fp) <*> xp = Parser $ \s ->
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case fp s of
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case fp s of
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Nothing -> Nothing
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Nothing -> Nothing
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Just (f,s') -> runParser (f <$> xp) s'
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Just (f, s') -> runParser (f <$> xp) s'
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instance Alternative Parser where
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instance Alternative Parser where
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empty = Parser (const Nothing)
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empty = Parser (const Nothing)
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@ -41,6 +45,7 @@ p .+. p' = (+) <$> p <*> p'
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p .*. p' = (*) <$> p <*> p'
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p .*. p' = (*) <$> p <*> p'
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infixl 6 .+.
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infixl 6 .+.
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infixl 7 .*.
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infixl 7 .*.
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opt :: NumParser -> NumParser
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opt :: NumParser -> NumParser
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@ -48,16 +53,21 @@ opt p = p <|> Parser p'
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where
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where
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p' s = Just (0, s)
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p' s = Just (0, s)
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data NumItem = NumItem { base :: NumParser
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data NumItem = NumItem
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{ base :: NumParser
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, plus10 :: NumParser
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, plus10 :: NumParser
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, times10 :: [NumParser]
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, times10 :: [NumParser]
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}
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}
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defaultNumItem :: Integer -> String -> NumItem
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defaultNumItem :: Integer -> String -> NumItem
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defaultNumItem value form = NumItem { base = p
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defaultNumItem value form =
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NumItem
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{ base = p
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, plus10 = p .+. ten
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, plus10 = p .+. ten
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, times10 = [p .*. ty]
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, times10 = [p .*. ty]
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} where p = assign value form
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}
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where
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p = assign value form
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type Assignment = Integer -> String -> NumParser
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type Assignment = Integer -> String -> NumParser
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@ -80,15 +90,27 @@ und :: NumParser
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und = assign 0 "und"
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und = assign 0 "und"
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one :: NumItem
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one :: NumItem
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one = (defaultNumItem 1 "ein") { plus10 = assign 11 "elf"
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one =
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, times10 = [ ten ] }
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(defaultNumItem 1 "ein")
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{ plus10 = assign 11 "elf"
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, times10 = [ten]
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}
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two :: NumItem
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two :: NumItem
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two = (defaultNumItem 2 "zwei") { plus10 = assign 12 "zwölf"
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two =
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, times10 = [ assign 20 "zwanzig" ] }
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(defaultNumItem 2 "zwei")
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{ plus10 = assign 12 "zwölf"
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, times10 = [assign 20 "zwanzig"]
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}
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three :: NumItem
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three :: NumItem
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three = (defaultNumItem 3 "drei") { times10 = [ assign 30 "dreißig"
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three =
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, assign 30 "dreissig" ] }
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(defaultNumItem 3 "drei")
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{ times10 =
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[ assign 30 "dreißig"
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, assign 30 "dreissig"
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]
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}
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four :: NumItem
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four :: NumItem
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four = defaultNumItem 4 "vier"
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four = defaultNumItem 4 "vier"
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@ -97,12 +119,18 @@ five :: NumItem
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five = defaultNumItem 5 "fünf"
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five = defaultNumItem 5 "fünf"
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six :: NumItem
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six :: NumItem
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six = (defaultNumItem 6 "sechs") { plus10 = assign 16 "sechzehn"
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six =
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, times10 = [ assign 60 "sechzig" ] }
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(defaultNumItem 6 "sechs")
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{ plus10 = assign 16 "sechzehn"
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, times10 = [assign 60 "sechzig"]
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}
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seven :: NumItem
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seven :: NumItem
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seven = (defaultNumItem 7 "sieben") { plus10 = assign 17 "siebzehn"
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seven =
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, times10 = [ assign 70 "siebzig" ] }
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(defaultNumItem 7 "sieben")
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{ plus10 = assign 17 "siebzehn"
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, times10 = [assign 70 "siebzig"]
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}
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eight :: NumItem
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eight :: NumItem
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eight = defaultNumItem 8 "acht"
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eight = defaultNumItem 8 "acht"
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@ -120,7 +148,8 @@ tensFrom20 :: NumParser
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tensFrom20 = asum (concatMap times10 (tail digitLexicon))
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tensFrom20 = asum (concatMap times10 (tail digitLexicon))
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from1to99 :: NumParser
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from1to99 :: NumParser
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from1to99 = opt (from1to9 .+. und) .+. tensFrom20
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from1to99 =
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opt (from1to9 .+. und) .+. tensFrom20
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<|> foldr ((<|>) . plus10) empty digitLexicon
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<|> foldr ((<|>) . plus10) empty digitLexicon
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<|> ten
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<|> ten
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<|> from1to9
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<|> from1to9
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@ -135,17 +164,19 @@ from1to999999' :: NumParser
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from1to999999' = Parser p
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from1to999999' = Parser p
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where
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where
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p s
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p s
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| isPrefixOf "hundert" s || isPrefixOf "tausend" s
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| isPrefixOf "hundert" s || isPrefixOf "tausend" s =
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= runParser from1to999999 ("ein" ++ s)
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runParser from1to999999 ("ein" ++ s)
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| otherwise
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| otherwise =
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= runParser from1to999999 s
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runParser from1to999999 s
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fromYear1100to1999 :: NumParser
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fromYear1100to1999 :: NumParser
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fromYear1100to1999 = asum ((\n -> plus10 n .*. hundred) <$> digitLexicon)
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fromYear1100to1999 =
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asum ((\n -> plus10 n .*. hundred) <$> digitLexicon)
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.+. opt (opt und .+. from1to99)
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.+. opt (opt und .+. from1to99)
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allNumerals :: NumParser
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allNumerals :: NumParser
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allNumerals = fromYear1100to1999
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allNumerals =
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fromYear1100to1999
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<|> from1to999999'
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<|> from1to999999'
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removeInflection :: (Integer, String) -> Maybe Integer
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removeInflection :: (Integer, String) -> Maybe Integer
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