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{-# LANGUAGE PatternGuards, CPP #-}
{-
Copyright (C) 2008 Andrea Rossato <andrea.rossato@ing.unitn.it>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-}
{- |
Module : Text.Pandoc.Biblio
Copyright : Copyright (C) 2008 Andrea Rossato
License : GNU GPL, version 2 or above
Maintainer : Andrea Rossato <andrea.rossato@ing.unitn.it>
Stability : alpha
Portability : portable
-}
#ifdef _CITEPROC
module Text.Pandoc.Biblio ( processBiblio ) where
import Control.Monad ( when )
import Data.List
import Text.CSL
import Text.Pandoc.Definition
#else
module Text.Pandoc.Biblio () where
#endif
#ifdef _CITEPROC
processBiblio :: String -> [Reference] -> Pandoc -> IO Pandoc
processBiblio cf r p
= if null r then return p
else do
when (null cf) $ error "Missing the needed citation style file"
csl <- readCSLFile cf
let groups = queryPandoc getCite p
citations = zip groups . processCitations csl r $ groups
Pandoc m b = processPandoc (processCite citations) p
return $ Pandoc m $ b ++ renderBiblio csl r p
renderBiblio :: Style -> [Reference] -> Pandoc -> [Block]
renderBiblio s r p
= map (read . renderPandoc') $ processBibliography s refs
where cits = nub . map fst . concat . queryPandoc getCite $ p
refs = getRefs r $ zip cits (repeat "")
processCite :: [([Target],[FormattedOutput])] -> Inline -> Inline
processCite cs il
| Cite t _ <- il = Cite t (process t)
| otherwise = il
where
process t = case elemIndex t (map fst cs) of
Just i -> read . renderPandoc $ snd (cs !! i)
Nothing -> [Str ("Error processing " ++ show t)]
getCite :: Inline -> [[(String,String)]]
getCite i | Cite t _ <- i = [t]
| otherwise = []
getRefs :: [Reference] -> [Target] -> [Reference]
getRefs = map . getReference
#endif
|
