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https://github.com/facebook/duckling.git
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fb1dcaa138
Summary: * Moving `ruleNationalDay` from `ZH` rules to specific locales: `zh_CN`, `zh_HK`, `zh_MO` * Fixed National Day for `zh_TW`. Reviewed By: blandinw Differential Revision: D6057565 fbshipit-source-id: 8f9f2ab
106 lines
2.2 KiB
Haskell
106 lines
2.2 KiB
Haskell
-- 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. An additional grant
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-- of patent rights can be found in the PATENTS file in the same directory.
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{-# LANGUAGE DeriveAnyClass #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE NoRebindableSyntax #-}
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module Duckling.Locale
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( Lang(..)
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, Locale(..)
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, Region(..)
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, allLocales
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, makeLocale
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) where
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import Data.Hashable
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import Data.HashMap.Strict (HashMap)
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import Data.HashSet (HashSet)
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import GHC.Generics
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import Prelude
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import TextShow (TextShow)
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import qualified Data.HashMap.Strict as HashMap
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import qualified Data.HashSet as HashSet
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import qualified TextShow as TS
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-- | ISO 639-1 Language.
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-- See https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
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data Lang
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= AR
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| BG
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| CS
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| DA
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| DE
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| EN
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| ES
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| ET
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| FR
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| GA
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| HE
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| HR
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| HU
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| ID
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| IT
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| JA
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| KA
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| KO
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| MY
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| NB
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| NL
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| PL
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| PT
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| RO
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| RU
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| SV
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| TR
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| UK
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| VI
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| ZH
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deriving (Bounded, Enum, Eq, Generic, Hashable, Ord, Read, Show)
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instance TextShow Lang where
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showb = TS.fromString . show
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-- | ISO 3166-1 alpha-2 Country code (includes regions and territories).
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-- See https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
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data Region
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= CN
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| GB
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| HK
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| MO
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| TW
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| US
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deriving (Bounded, Enum, Eq, Generic, Hashable, Ord, Read, Show)
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instance TextShow Region where
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showb = TS.fromString . show
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data Locale = Locale Lang (Maybe Region)
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deriving (Eq, Generic, Hashable, Ord)
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instance Show Locale where
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show (Locale lang Nothing) = show lang ++ "_XX"
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show (Locale lang (Just region)) = show lang ++ "_" ++ show region
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instance TextShow Locale where
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showb = TS.fromString . show
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makeLocale :: Lang -> Maybe Region -> Locale
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makeLocale lang Nothing = Locale lang Nothing
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makeLocale lang (Just region)
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| HashSet.member region locales = Locale lang $ Just region
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| otherwise = Locale lang Nothing
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where
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locales = HashMap.lookupDefault HashSet.empty lang allLocales
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allLocales :: HashMap Lang (HashSet Region)
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allLocales = HashMap.fromList
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[ (EN, HashSet.fromList [GB, US])
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, (ZH, HashSet.fromList [CN, HK, MO, TW])
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]
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