src/Data/JLD/Model/Keyword.hs


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module Data.JLD.Model.Keyword (
    Keyword (..),
    parseKeyword,
    isKeyword,
    isNotKeyword,
    allKeywords,
    isKeywordLike,
) where

import Data.JLD.Prelude hiding (show)

import Data.Char (isAlpha)
import Data.Foldable qualified as F
import Data.Text qualified as T (all, null, uncons)
import Text.Show (Show (..))

data Keyword
    = KeywordAny
    | KeywordBase
    | KeywordContainer
    | KeywordContext
    | KeywordDefault
    | KeywordDirection
    | KeywordEmbed
    | KeywordExplicit
    | KeywordFirst
    | KeywordGraph
    | KeywordId
    | KeywordImport
    | KeywordIncluded
    | KeywordIndex
    | KeywordJson
    | KeywordLanguage
    | KeywordList
    | KeywordMerged
    | KeywordNest
    | KeywordNone
    | KeywordNull
    | KeywordOmitDefault
    | KeywordPrefix
    | KeywordPreserve
    | KeywordPropagate
    | KeywordProtected
    | KeywordRequireAll
    | KeywordReverse
    | KeywordSet
    | KeywordType
    | KeywordValue
    | KeywordVersion
    | KeywordVocab
    deriving (Eq, Ord)

instance Show Keyword where
    show = \case
        KeywordAny -> "@any"
        KeywordBase -> "@base"
        KeywordContainer -> "@container"
        KeywordContext -> "@context"
        KeywordDefault -> "@default"
        KeywordDirection -> "@direction"
        KeywordEmbed -> "@embed"
        KeywordExplicit -> "@explicit"
        KeywordFirst -> "@first"
        KeywordGraph -> "@graph"
        KeywordId -> "@id"
        KeywordImport -> "@import"
        KeywordIncluded -> "@included"
        KeywordIndex -> "@index"
        KeywordJson -> "@json"
        KeywordLanguage -> "@language"
        KeywordList -> "@list"
        KeywordMerged -> "@merged"
        KeywordNest -> "@nest"
        KeywordNone -> "@none"
        KeywordNull -> "@null"
        KeywordOmitDefault -> "@omitDefault"
        KeywordPrefix -> "@prefix"
        KeywordPreserve -> "@preserve"
        KeywordPropagate -> "@propagate"
        KeywordProtected -> "@protected"
        KeywordRequireAll -> "@requireAll"
        KeywordReverse -> "@reverse"
        KeywordSet -> "@set"
        KeywordType -> "@type"
        KeywordValue -> "@value"
        KeywordVersion -> "@version"
        KeywordVocab -> "@vocab"

parseKeyword :: Text -> Maybe Keyword
parseKeyword = \case
    "@any" -> Just KeywordAny
    "@base" -> Just KeywordBase
    "@container" -> Just KeywordContainer
    "@context" -> Just KeywordContext
    "@default" -> Just KeywordDefault
    "@direction" -> Just KeywordDirection
    "@embed" -> Just KeywordEmbed
    "@explicit" -> Just KeywordExplicit
    "@first" -> Just KeywordFirst
    "@graph" -> Just KeywordGraph
    "@id" -> Just KeywordId
    "@import" -> Just KeywordImport
    "@included" -> Just KeywordIncluded
    "@index" -> Just KeywordIndex
    "@json" -> Just KeywordJson
    "@language" -> Just KeywordLanguage
    "@list" -> Just KeywordList
    "@merged" -> Just KeywordMerged
    "@nest" -> Just KeywordNest
    "@none" -> Just KeywordNone
    "@null" -> Just KeywordNull
    "@omitDefault" -> Just KeywordOmitDefault
    "@prefix" -> Just KeywordPrefix
    "@preserve" -> Just KeywordPreserve
    "@propagate" -> Just KeywordPropagate
    "@protected" -> Just KeywordProtected
    "@requireAll" -> Just KeywordRequireAll
    "@reverse" -> Just KeywordReverse
    "@set" -> Just KeywordSet
    "@type" -> Just KeywordType
    "@value" -> Just KeywordValue
    "@version" -> Just KeywordVersion
    "@vocab" -> Just KeywordVocab
    _ -> Nothing

isKeyword :: Foldable f => Text -> f Keyword -> Bool
isKeyword (parseKeyword -> Just keyword) (F.elem keyword -> True) = True
isKeyword _ _ = False

isNotKeyword :: Foldable f => Text -> f Keyword -> Bool
isNotKeyword s = isKeyword s .> not

allKeywords :: Foldable f => f Text -> f Keyword -> Bool
allKeywords values keywords = all (`isKeyword` keywords) values

isKeywordLike :: Text -> Bool
isKeywordLike (T.uncons -> Just ('@', res)) = not (T.null res) && T.all isAlpha res
isKeywordLike _ = False