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{-# OPTIONS_GHC -fno-warn-orphans #-}
module Hakyll.TeX.BibTeX
( bibtexCompiler
, compileBibtex
, BibEntry
, BibTeX
) where
import Prolog
import Data.List qualified as L
import Hakyll
import Text.BibTeX.Entry qualified as B
import Text.BibTeX.Format qualified as BF
import Text.BibTeX.Parse qualified as B
import Text.Parsec qualified as P
import Hakyll.Parsec
type BibEntry = B.T
type BibTeX = [BibEntry]
deriving instance Generic B.T
instance Binary B.T
instance Writable B.T where
write p = write p . fmap BF.entry
instance Writable [B.T] where
write p = write p . fmap (fold . L.intersperse "\n" . fmap BF.entry)
compileBibtex :: (StringConv s String) => Item s -> Compiler (Item BibTeX)
compileBibtex = fmap (B.lowerCaseFieldNames <<$>>) . compileParsec_ p . fmap toSL
where
p = B.skippingLeadingSpace $ B.file <* P.space <* P.eof
bibtexCompiler :: Compiler (Item BibTeX)
bibtexCompiler = getResourceBody >>= compileBibtex
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