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-rw-r--r--src/Text/Pandoc/Lua.hs26
1 files changed, 12 insertions, 14 deletions
diff --git a/src/Text/Pandoc/Lua.hs b/src/Text/Pandoc/Lua.hs
index cd7117074..e160f7123 100644
--- a/src/Text/Pandoc/Lua.hs
+++ b/src/Text/Pandoc/Lua.hs
@@ -1,4 +1,3 @@
-{-# LANGUAGE NoImplicitPrelude #-}
{-
Copyright © 2017–2018 Albert Krewinkel <tarleb+pandoc@moltkeplatz.de>
@@ -16,6 +15,7 @@ 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
-}
+{-# LANGUAGE NoImplicitPrelude #-}
{- |
Module : Text.Pandoc.Lua
Copyright : Copyright © 2017–2018 Albert Krewinkel
@@ -34,14 +34,14 @@ module Text.Pandoc.Lua
import Prelude
import Control.Monad ((>=>))
-import Foreign.Lua (FromLuaStack (peek), Lua, LuaException (..),
- Status (OK), ToLuaStack (push))
+import Foreign.Lua (Lua)
import Text.Pandoc.Class (PandocIO)
import Text.Pandoc.Definition (Pandoc)
import Text.Pandoc.Lua.Filter (LuaFilter, walkMWithLuaFilter)
-import Text.Pandoc.Lua.Init (runPandocLua, registerScriptPath)
-import Text.Pandoc.Lua.Util (popValue)
+import Text.Pandoc.Lua.Init (LuaException (..), runPandocLua, registerScriptPath)
+import Text.Pandoc.Lua.Util (dofileWithTraceback)
import Text.Pandoc.Options (ReaderOptions)
+
import qualified Foreign.Lua as Lua
-- | Run the Lua filter in @filterPath@ for a transformation to target
@@ -59,26 +59,24 @@ runLuaFilter' ropts filterPath format pd = do
registerReaderOptions
registerScriptPath filterPath
top <- Lua.gettop
- stat <- Lua.dofile filterPath
- if stat /= OK
- then do
- luaErrMsg <- popValue
- Lua.throwLuaError luaErrMsg
+ stat <- dofileWithTraceback filterPath
+ if stat /= Lua.OK
+ then Lua.throwTopMessage
else do
newtop <- Lua.gettop
-- Use the returned filters, or the implicitly defined global filter if
-- nothing was returned.
luaFilters <- if newtop - top >= 1
- then peek (-1)
- else Lua.getglobal "_G" *> fmap (:[]) popValue
+ then Lua.peek Lua.stackTop
+ else Lua.pushglobaltable *> fmap (:[]) Lua.popValue
runAll luaFilters pd
where
registerFormat = do
- push format
+ Lua.push format
Lua.setglobal "FORMAT"
registerReaderOptions = do
- push ropts
+ Lua.push ropts
Lua.setglobal "PANDOC_READER_OPTIONS"
runAll :: [LuaFilter] -> Pandoc -> Lua Pandoc