From 9f089aa2863afdbfacd8a43dc85f0b8c53463bb8 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Mon, 13 Dec 2021 12:10:13 -0800
Subject: Org writer: add tests for org-cite citations, and improve support.

---
 src/Text/Pandoc/Writers/Org.hs | 32 ++++++++++++++++++++++++++----
 test/command/7329.md           | 44 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 72 insertions(+), 4 deletions(-)
 create mode 100644 test/command/7329.md

diff --git a/src/Text/Pandoc/Writers/Org.hs b/src/Text/Pandoc/Writers/Org.hs
index bf7c3f551..ce406567b 100644
--- a/src/Text/Pandoc/Writers/Org.hs
+++ b/src/Text/Pandoc/Writers/Org.hs
@@ -29,22 +29,32 @@ import Text.Pandoc.Options
 import Text.DocLayout
 import Text.Pandoc.Shared
 import Text.Pandoc.Templates (renderTemplate)
+import Text.Pandoc.Citeproc.Locator (parseLocator, toLocatorMap, LocatorMap,
+                                      LocatorInfo(..))
+import Text.Pandoc.Citeproc (getCiteprocLang, getStyle)
+import qualified Citeproc as Citeproc
 import Text.Pandoc.Writers.Shared
 
 data WriterState =
   WriterState { stNotes   :: [[Block]]
               , stHasMath :: Bool
               , stOptions :: WriterOptions
+              , stLocatorMap :: LocatorMap
               }
 
 type Org = StateT WriterState
 
 -- | Convert Pandoc to Org.
 writeOrg :: PandocMonad m => WriterOptions -> Pandoc -> m Text
-writeOrg opts document = do
+writeOrg opts document@(Pandoc meta _) = do
+  style <- getStyle document
+  mblang <- getCiteprocLang meta
+  let locmap = toLocatorMap $ Citeproc.mergeLocales mblang style
+
   let st = WriterState { stNotes = [],
                          stHasMath = False,
-                         stOptions = opts }
+                         stOptions = opts,
+                         stLocatorMap = locmap }
   evalStateT (pandocToOrg document) st
 
 -- | Return Org representation of document.
@@ -103,7 +113,12 @@ blockToOrg :: PandocMonad m
            => Block         -- ^ Block element
            -> Org m (Doc Text)
 blockToOrg Null = return empty
-blockToOrg (Div attr bs) = divToOrg attr bs
+blockToOrg (Div attr@(ident,_,_) bs) = do
+  opts <- gets stOptions
+  -- Strip off bibliography if citations enabled
+  if ident == "refs" && isEnabled Ext_citations opts
+     then return mempty
+     else divToOrg attr bs
 blockToOrg (Plain inlines) = inlineListToOrg inlines
 blockToOrg (SimpleFigure attr txt (src, tit)) = do
       capt <- if null txt
@@ -402,9 +417,18 @@ inlineToOrg (Cite cs lst) = do
      then do
        let renderCiteItem c = do
              citePref <- inlineListToOrg (citationPrefix c)
-             citeSuff <- inlineListToOrg (citationSuffix c)
+             locmap <- gets stLocatorMap
+             let (locinfo, suffix) = parseLocator locmap (citationSuffix c)
+             citeSuff <- inlineListToOrg suffix
+             let locator = case locinfo of
+                            Just info -> literal $
+                              T.replace "\160" " " $
+                              T.replace "{" "" $
+                              T.replace "}" "" $ locatorRaw info
+                            Nothing -> mempty
              return $ hsep [ citePref
                            , ("@" <> literal (citationId c))
+                           , locator
                            , citeSuff ]
        citeItems <- mconcat . intersperse "; " <$> mapM renderCiteItem cs
        let sty = case cs of
diff --git a/test/command/7329.md b/test/command/7329.md
new file mode 100644
index 000000000..565241db8
--- /dev/null
+++ b/test/command/7329.md
@@ -0,0 +1,44 @@
+```
+% pandoc -f markdown -t org
+- @item1
+- @item1 [p. 12]
+- @item1 [p.12; see also @item2]
+- [@item1]
+- [-@item1]
+- [see @item1 p. 12]
+- [see @item1, p. 12]
+- [see @item1, p. 12 and *passim*]
+- [@item1;@item2]
+- [see @item1; @item2]
+^D
+- [cite/t:@item1]
+- [cite/t:@item1 p. 12]
+- [cite/t:@item1 p.12; see also @item2]
+- [cite:@item1]
+- [cite/na:@item1]
+- [cite:see @item1 p. 12]
+- [cite:see @item1 p. 12]
+- [cite:see @item1 p. 12 and /passim/]
+- [cite:@item1; @item2]
+- [cite:see @item1; @item2]
+```
+
+```
+% pandoc -f markdown -t org -C --bibliography command/biblio.bib
+- [@item1]
+^D
+- [cite:@item1]
+```
+
+
+```
+% pandoc -f markdown -t org-citations -C --bibliography command/biblio.bib
+[@item1]
+^D
+(Doe 2005)
+
+<<refs>>
+
+<<ref-item1>>
+Doe, John. 2005. /First Book/. Cambridge: Cambridge University Press.
+```
-- 
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