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-rw-r--r--src/Text/Pandoc/Lua/Init.hs20
1 files changed, 15 insertions, 5 deletions
diff --git a/src/Text/Pandoc/Lua/Init.hs b/src/Text/Pandoc/Lua/Init.hs
index e89e9d6e0..baa6f0295 100644
--- a/src/Text/Pandoc/Lua/Init.hs
+++ b/src/Text/Pandoc/Lua/Init.hs
@@ -1,6 +1,6 @@
{- |
Module : Text.Pandoc.Lua
- Copyright : Copyright © 2017-2020 Albert Krewinkel
+ Copyright : Copyright © 2017-2021 Albert Krewinkel
License : GNU GPL, version 2 or above
Maintainer : Albert Krewinkel <tarleb+pandoc@moltkeplatz.de>
@@ -12,17 +12,18 @@ module Text.Pandoc.Lua.Init
( runLua
) where
+import Control.Monad (when)
import Control.Monad.Catch (try)
import Control.Monad.Trans (MonadIO (..))
import Data.Data (Data, dataTypeConstrs, dataTypeOf, showConstr)
import Foreign.Lua (Lua)
import GHC.IO.Encoding (getForeignEncoding, setForeignEncoding, utf8)
+import Text.Pandoc.Class.PandocMonad (readDataFile)
import Text.Pandoc.Class.PandocIO (PandocIO)
import Text.Pandoc.Error (PandocError)
import Text.Pandoc.Lua.Packages (installPandocPackageSearcher)
-import Text.Pandoc.Lua.PandocLua (PandocLua, liftPandocLua,
- loadScriptFromDataDir, runPandocLua)
-
+import Text.Pandoc.Lua.PandocLua (PandocLua, liftPandocLua, runPandocLua)
+import Text.Pandoc.Lua.Util (throwTopMessageAsError')
import qualified Foreign.Lua as Lua
import qualified Text.Pandoc.Definition as Pandoc
import qualified Text.Pandoc.Lua.Module.Pandoc as ModulePandoc
@@ -44,7 +45,7 @@ initLuaState = do
liftPandocLua Lua.openlibs
installPandocPackageSearcher
initPandocModule
- loadScriptFromDataDir "init.lua"
+ loadInitScript "init.lua"
where
initPandocModule :: PandocLua ()
initPandocModule = do
@@ -61,6 +62,15 @@ initLuaState = do
-- assign module to global variable
liftPandocLua $ Lua.setglobal "pandoc"
+ loadInitScript :: FilePath -> PandocLua ()
+ loadInitScript scriptFile = do
+ script <- readDataFile scriptFile
+ status <- liftPandocLua $ Lua.dostring script
+ when (status /= Lua.OK) . liftPandocLua $
+ throwTopMessageAsError'
+ (("Couldn't load '" ++ scriptFile ++ "'.\n") ++)
+
+
-- | AST elements are marshaled via normal constructor functions in the
-- @pandoc@ module. However, accessing Lua globals from Haskell is
-- expensive (due to error handling). Accessing the Lua registry is much