Switch to new pandoc-types and use Text instead of String [API change].

PR #5884.

+ Use pandoc-types 1.20 and texmath 0.12.
+ Text is now used instead of String, with a few exceptions.
+ In the MediaBag module, some of the types using Strings
  were switched to use FilePath instead (not Text).
+ In the Parsing module, new parsers `manyChar`, `many1Char`,
  `manyTillChar`, `many1TillChar`, `many1Till`, `manyUntil`,
  `mantyUntilChar` have been added: these are like their
  unsuffixed counterparts but pack some or all of their output.
+ `glob` in Text.Pandoc.Class still takes String since it seems
  to be intended as an interface to Glob, which uses strings.
  It seems to be used only once in the package, in the EPUB writer,
  so that is not hard to change.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/Text/Pandoc/Lua/Module/MediaBag.hs b/src/Text/Pandoc/Lua/Module/MediaBag.hs
index 261785665..951571ddd 100644
--- a/src/Text/Pandoc/Lua/Module/MediaBag.hs
+++ b/src/Text/Pandoc/Lua/Module/MediaBag.hs
@@ -15,7 +15,6 @@ module Text.Pandoc.Lua.Module.MediaBag
 
 import Prelude
 import Control.Monad (zipWithM_)
-import Data.Maybe (fromMaybe)
 import Foreign.Lua (Lua, NumResults, Optional, liftIO)
 import Text.Pandoc.Class (CommonState (..), fetchItem, putCommonState,
                           runIOorExplode, setMediaBag)
@@ -25,6 +24,7 @@ import Text.Pandoc.Lua.Util (addFunction)
 import Text.Pandoc.MIME (MimeType)
 
 import qualified Data.ByteString.Lazy as BL
+import qualified Data.Text as T
 import qualified Foreign.Lua as Lua
 import qualified Text.Pandoc.MediaBag as MB
 
@@ -113,7 +113,7 @@ mediaDirectoryFn = do
     Lua.push "length" *> Lua.push contentLength *> Lua.rawset (-3)
     Lua.rawseti (-2) idx
 
-fetch :: String
+fetch :: T.Text
       -> Lua NumResults
 fetch src = do
   commonState <- getCommonState
@@ -122,6 +122,6 @@ fetch src = do
     putCommonState commonState
     setMediaBag mediaBag
     fetchItem src
-  Lua.push $ fromMaybe "" mimeType
+  Lua.push $ maybe "" T.unpack mimeType
   Lua.push bs
   return 2 -- returns 2 values: contents, mimetype