From 564c39beef36bf008fa5d2c840560ef064152e7d Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sun, 28 Feb 2021 09:49:34 -0800
Subject: Move setDefaultLanguage to T.P.Readers.LaTeX.Lang.

---
 src/Text/Pandoc/Readers/LaTeX.hs      | 16 ++--------------
 src/Text/Pandoc/Readers/LaTeX/Lang.hs | 22 ++++++++++++++++++++--
 2 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/src/Text/Pandoc/Readers/LaTeX.hs b/src/Text/Pandoc/Readers/LaTeX.hs
index 3935c92ef..2155379db 100644
--- a/src/Text/Pandoc/Readers/LaTeX.hs
+++ b/src/Text/Pandoc/Readers/LaTeX.hs
@@ -44,7 +44,7 @@ import Text.Pandoc.Builder
 import Text.Pandoc.Class.PandocPure (PandocPure)
 import Text.Pandoc.Class.PandocMonad (PandocMonad (..), getResourcePath,
                                       readFileFromDirs, report, setResourcePath,
-                                      setTranslations, translateTerm)
+                                      translateTerm)
 import Text.Pandoc.Error (PandocError (PandocParseError, PandocParsecError))
 import Text.Pandoc.Highlighting (fromListingsLanguage, languagesByExtension)
 import Text.Pandoc.ImageSize (numUnit, showFl)
@@ -59,7 +59,7 @@ import Text.Pandoc.Readers.LaTeX.Accent (accentCommands)
 import Text.Pandoc.Readers.LaTeX.Citation (citationCommands, cites)
 import Text.Pandoc.Readers.LaTeX.Table (tableEnvironments)
 import Text.Pandoc.Readers.LaTeX.Lang (polyglossiaLangToBCP47,
-                                       babelLangToBCP47)
+                                       babelLangToBCP47, setDefaultLanguage)
 import Text.Pandoc.Readers.LaTeX.SIunitx
 import Text.Pandoc.Shared
 import qualified Text.Pandoc.Translations as Translations
@@ -1856,15 +1856,3 @@ block = do
 blocks :: PandocMonad m => LP m Blocks
 blocks = mconcat <$> many block
 
-setDefaultLanguage :: PandocMonad m => LP m Blocks
-setDefaultLanguage = do
-  o <- option "" $ T.filter (\c -> c /= '[' && c /= ']')
-                <$> rawopt
-  polylang <- untokenize <$> braced
-  case M.lookup polylang polyglossiaLangToBCP47 of
-       Nothing -> return mempty -- TODO mzero? warning?
-       Just langFunc -> do
-         let l = langFunc o
-         setTranslations l
-         updateState $ setMeta "lang" $ str (renderLang l)
-         return mempty
diff --git a/src/Text/Pandoc/Readers/LaTeX/Lang.hs b/src/Text/Pandoc/Readers/LaTeX/Lang.hs
index 5f634818e..adbeaa6d4 100644
--- a/src/Text/Pandoc/Readers/LaTeX/Lang.hs
+++ b/src/Text/Pandoc/Readers/LaTeX/Lang.hs
@@ -12,13 +12,31 @@ Functions for parsing polyglossia and babel language specifiers to
 BCP47 'Lang'.
 -}
 module Text.Pandoc.Readers.LaTeX.Lang
-  ( polyglossiaLangToBCP47
+  ( setDefaultLanguage
+  , polyglossiaLangToBCP47
   , babelLangToBCP47
   )
 where
 import qualified Data.Map as M
 import qualified Data.Text as T
-import Text.Pandoc.BCP47 (Lang(..))
+import Text.Pandoc.BCP47 (Lang(..), renderLang)
+import Text.Pandoc.Class (PandocMonad(..), setTranslations)
+import Text.Pandoc.Readers.LaTeX.Parsing
+import Text.Pandoc.Parsing (updateState, option)
+import Text.Pandoc.Builder (Blocks, setMeta, str)
+
+setDefaultLanguage :: PandocMonad m => LP m Blocks
+setDefaultLanguage = do
+  o <- option "" $ T.filter (\c -> c /= '[' && c /= ']')
+                <$> rawopt
+  polylang <- untokenize <$> braced
+  case M.lookup polylang polyglossiaLangToBCP47 of
+       Nothing -> return mempty -- TODO mzero? warning?
+       Just langFunc -> do
+         let l = langFunc o
+         setTranslations l
+         updateState $ setMeta "lang" $ str (renderLang l)
+         return mempty
 
 polyglossiaLangToBCP47 :: M.Map T.Text (T.Text -> Lang)
 polyglossiaLangToBCP47 = M.fromList
-- 
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