22 lines
658 B
Haskell
22 lines
658 B
Haskell
-- Haskell types to support the language tags
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module Types where
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type Language = String
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type Extlang = Maybe String -- Only one extlang authorized
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type Script = Maybe String
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type Region = Maybe String
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type Singleton = Char
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type Variants = [Variant]
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type Variant = String
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type Extension = (Singleton, [String])
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type Extensions = [Extension]
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type Grandfathered = String
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type Privateuse = [String]
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data Tag = Tag Language Extlang Script Region Variants Extensions | GF Grandfathered | Priv Privateuse deriving (Show, Eq)
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-- TODO: warning, Eq must
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-- be redefined because it needs to take into account case-insensitivity and
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-- (maybe) canonicalization
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