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|
{-# LANGUAGE OverloadedStrings #-}
module Text.Pandoc.Citeproc.MetaValue
( referenceToMetaValue
, metaValueToReference
, metaValueToText
, metaValueToPath
)
where
import Citeproc.Types
import Text.Pandoc.Definition
import Text.Pandoc.Builder as B
import Text.Pandoc.Walk (query)
import Text.Pandoc.Shared (stringify)
import Data.Maybe
import Safe
import qualified Data.Set as Set
import qualified Data.Map as M
import qualified Data.Text as T
import Data.Text (Text)
import Text.Printf (printf)
import Control.Applicative ((<|>))
metaValueToText :: MetaValue -> Maybe Text
metaValueToText (MetaString t) = Just t
metaValueToText (MetaInlines ils) = Just $ stringify ils
metaValueToText (MetaBlocks bls) = Just $ stringify bls
metaValueToText (MetaList xs) = T.unwords <$> mapM metaValueToText xs
metaValueToText _ = Nothing
metaValueToPath :: MetaValue -> Maybe FilePath
metaValueToPath = fmap T.unpack . metaValueToText
metaValueToBool :: MetaValue -> Maybe Bool
metaValueToBool (MetaBool b) = Just b
metaValueToBool (MetaString "true") = Just True
metaValueToBool (MetaString "false") = Just False
metaValueToBool (MetaInlines ils) =
metaValueToBool (MetaString (stringify ils))
metaValueToBool _ = Nothing
referenceToMetaValue :: Reference Inlines -> MetaValue
referenceToMetaValue ref =
let ItemId id' = referenceId ref
type' = referenceType ref
in MetaMap $ M.insert "id" (MetaString id')
$ M.insert "type" (MetaString type')
$ M.map valToMetaValue
$ M.mapKeys fromVariable
$ referenceVariables ref
valToMetaValue :: Val Inlines -> MetaValue
valToMetaValue (TextVal t) = MetaString t
valToMetaValue (FancyVal ils) = MetaInlines (B.toList ils)
valToMetaValue (NumVal n) = MetaString (T.pack $ show n)
valToMetaValue (NamesVal ns) = MetaList $ map nameToMetaValue ns
valToMetaValue (DateVal d) = dateToMetaValue d
nameToMetaValue :: Name -> MetaValue
nameToMetaValue name =
MetaMap $
(maybe id (M.insert "family" . MetaString) (nameFamily name)) .
(maybe id (M.insert "given" . MetaString) (nameGiven name)) .
(maybe id (M.insert "dropping-particle" . MetaString)
(nameDroppingParticle name)) .
(maybe id (M.insert "non-dropping-particle" . MetaString)
(nameNonDroppingParticle name)) .
(maybe id (M.insert "suffix" . MetaString) (nameSuffix name)) .
(maybe id (M.insert "literal" . MetaString) (nameLiteral name)) .
(if nameCommaSuffix name
then M.insert "comma-suffix" (MetaBool True)
else id) .
(if nameStaticOrdering name
then M.insert "static-ordering" (MetaBool True)
else id)
$ mempty
dateToMetaValue :: Date -> MetaValue
dateToMetaValue date =
MetaString $
(case dateLiteral date of
Just l -> l
Nothing -> T.intercalate "/" $ map datePartsToEDTF $ dateParts date)
<> (if dateCirca date then "~" else "")
where
datePartsToEDTF (DateParts dps) =
T.pack $
(case dps of
(y:_) | y > 9999 || y < -10000 -> ('y':)
_ -> id) $
case dps of
(y:m:d:_)
| y < -1 -> printf "%05d-%02d-%02d" (y+1) m d
| otherwise -> printf "%04d-%02d-%02d" y m d
(y:m:[])
| y < -1 -> printf "%05d-%02d" (y+1) m
| otherwise -> printf "%04d-%02d" y m
(y:[])
| y == 0 -> printf "" -- used for open range
| y < -1 -> printf "%05d" (y+1)
| otherwise -> printf "%04d" y
_ -> mempty
metaValueToReference :: MetaValue
-> Maybe (Reference Inlines)
metaValueToReference (MetaMap m) = do
let m' = M.mapKeys normalizeKey m
id' <- M.lookup "id" m' >>= metaValueToText
type' <- (M.lookup "type" m' >>= metaValueToText) <|> pure ""
let m'' = M.delete "id" $ M.delete "type" m'
let vars = M.mapKeys toVariable $ M.mapWithKey metaValueToVal m''
return $ Reference { referenceId = ItemId id'
, referenceType = type'
, referenceDisambiguation = Nothing
, referenceVariables = vars }
metaValueToReference _ = Nothing
metaValueToVal :: Text -> MetaValue -> Val Inlines
metaValueToVal k v
| k `Set.member` dateVariables
= DateVal $ metaValueToDate v
| k `Set.member` nameVariables
= NamesVal $ metaValueToNames v
| k == "other-ids"
= TextVal $ fromMaybe mempty $ metaValueToText v
-- will create space-separated list
| otherwise =
case v of
MetaString t -> TextVal t
MetaInlines ils -> FancyVal (B.fromList ils)
MetaBlocks bs -> FancyVal (B.fromList $ query id bs)
MetaBool b -> TextVal (if b then "true" else "false")
MetaList _ -> TextVal mempty
MetaMap _ -> TextVal mempty
metaValueToDate :: MetaValue -> Date
metaValueToDate (MetaMap m) =
Date
{ dateParts = dateparts
, dateCirca = circa
, dateSeason = season
, dateLiteral = literal }
where
dateparts = case M.lookup "date-parts" m of
Just (MetaList xs) ->
mapMaybe metaValueToDateParts xs
Just _ -> []
Nothing ->
maybe [] (:[]) $ metaValueToDateParts (MetaMap m)
circa = fromMaybe False $
M.lookup "circa" m >>= metaValueToBool
season = M.lookup "season" m >>= metaValueToInt
literal = M.lookup "literal" m >>= metaValueToText
metaValueToDate (MetaList xs) =
Date{ dateParts = mapMaybe metaValueToDateParts xs
, dateCirca = False
, dateSeason = Nothing
, dateLiteral = Nothing }
metaValueToDate x =
fromMaybe emptyDate $ metaValueToText x >>= rawDateEDTF
metaValueToInt :: MetaValue -> Maybe Int
metaValueToInt x = metaValueToText x >>= readMay . T.unpack
metaValueToDateParts :: MetaValue -> Maybe DateParts
metaValueToDateParts (MetaList xs) =
Just $ DateParts $ map (fromMaybe 0 . metaValueToInt) xs
metaValueToDateParts (MetaMap m) =
case (M.lookup "year" m >>= metaValueToInt,
((M.lookup "month" m >>= metaValueToInt)
<|>
((+ 20) <$> (M.lookup "season" m >>= metaValueToInt))),
M.lookup "day" m >>= metaValueToInt) of
(Just y, Just mo, Just d) -> Just $ DateParts [y, mo, d]
(Just y, Just mo, Nothing) -> Just $ DateParts [y, mo]
(Just y, Nothing, _) -> Just $ DateParts [y]
_ -> Nothing
metaValueToDateParts _ = Nothing
emptyDate :: Date
emptyDate = Date { dateParts = []
, dateCirca = False
, dateSeason = Nothing
, dateLiteral = Nothing }
metaValueToNames :: MetaValue -> [Name]
metaValueToNames (MetaList xs) = mapMaybe metaValueToName xs
metaValueToNames x = maybeToList $ metaValueToName x
metaValueToName :: MetaValue -> Maybe Name
metaValueToName (MetaMap m) = extractParticles <$>
Just Name
{ nameFamily = family
, nameGiven = given
, nameDroppingParticle = dropping
, nameNonDroppingParticle = nondropping
, nameSuffix = suffix
, nameCommaSuffix = commasuffix
, nameStaticOrdering = staticordering
, nameLiteral = literal
}
where
family = M.lookup "family" m >>= metaValueToText
given = M.lookup "given" m >>= metaValueToText
dropping = M.lookup "dropping-particle" m
>>= metaValueToText
nondropping = M.lookup "non-dropping-particle" m
>>= metaValueToText
suffix = M.lookup "suffix" m >>= metaValueToText
commasuffix = fromMaybe False $
M.lookup "comma-suffix" m >>= metaValueToBool
staticordering = fromMaybe False $
M.lookup "static-ordering" m >>= metaValueToBool
literal = M.lookup "literal" m >>= metaValueToText
metaValueToName x = extractParticles <$>
case metaValueToText x of
Nothing -> Nothing
Just lit -> Just Name
{ nameFamily = Nothing
, nameGiven = Nothing
, nameDroppingParticle = Nothing
, nameNonDroppingParticle = Nothing
, nameSuffix = Nothing
, nameCommaSuffix = False
, nameStaticOrdering = False
, nameLiteral = Just lit }
dateVariables :: Set.Set Text
dateVariables = Set.fromList
[ "accessed", "container", "event-date", "issued",
"original-date", "submitted" ]
nameVariables :: Set.Set Text
nameVariables = Set.fromList
[ "author", "collection-editor", "composer",
"container-author", "director", "editor",
"editorial-director", "illustrator",
"interviewer", "original-author",
"recipient", "reviewed-author",
"translator" ]
normalizeKey :: Text -> Text
normalizeKey k =
case T.toLower k of
"doi" -> "DOI"
"isbn" -> "ISBN"
"issn" -> "ISSN"
"pmcid" -> "PMCID"
"pmid" -> "PMID"
"url" -> "URL"
x -> x
|
