Org reader: respect export option for tags

Tags are appended to headlines by default, but will be omitted when the
`tags` export option is set to nil.

Closes: #3713

3 files changed, 8 insertions, 2 deletions

diff --git a/src/Text/Pandoc/Readers/Org/DocumentTree.hs b/src/Text/Pandoc/Readers/Org/DocumentTree.hs
index 66ccd4655..4abbe7be8 100644
--- a/src/Text/Pandoc/Readers/Org/DocumentTree.hs
+++ b/src/Text/Pandoc/Readers/Org/DocumentTree.hs
@@ -220,12 +220,16 @@ headlineToHeaderWithContents hdln@(Headline {..}) = do
 headlineToHeader :: Monad m => Headline -> OrgParser m Blocks
 headlineToHeader (Headline {..}) = do
   exportTodoKeyword <- getExportSetting exportWithTodoKeywords
+  exportTags        <- getExportSetting exportWithTags
   let todoText    = if exportTodoKeyword
                     then case headlineTodoMarker of
                       Just kw -> todoKeywordToInlines kw <> B.space
                       Nothing -> mempty
                     else mempty
-  let text        = todoText <> headlineText <> tagsToInlines headlineTags
+  let text        = todoText <> headlineText <>
+                    if exportTags
+                    then tagsToInlines headlineTags
+                    else mempty
   let propAttr    = propertiesToAttr headlineProperties
   attr           <- registerHeader propAttr headlineText
   return $ B.headerWith attr headlineLevel text
diff --git a/src/Text/Pandoc/Readers/Org/ExportSettings.hs b/src/Text/Pandoc/Readers/Org/ExportSettings.hs
index c49b5ec07..11f0972d5 100644
--- a/src/Text/Pandoc/Readers/Org/ExportSettings.hs
+++ b/src/Text/Pandoc/Readers/Org/ExportSettings.hs
@@ -71,7 +71,7 @@ exportSetting = choice
   , ignoredSetting "pri"
   , ignoredSetting "prop"
   , ignoredSetting "stat"
-  , ignoredSetting "tags"
+  , booleanSetting "tags" (\val es -> es { exportWithTags = val })
   , ignoredSetting "tasks"
   , ignoredSetting "tex"
   , ignoredSetting "timestamp"
diff --git a/src/Text/Pandoc/Readers/Org/ParserState.hs b/src/Text/Pandoc/Readers/Org/ParserState.hs
index adc3b313e..4520a5552 100644
--- a/src/Text/Pandoc/Readers/Org/ParserState.hs
+++ b/src/Text/Pandoc/Readers/Org/ParserState.hs
@@ -240,6 +240,7 @@ data ExportSettings = ExportSettings
   , exportWithAuthor       :: Bool -- ^ Include author in final meta-data
   , exportWithCreator      :: Bool -- ^ Include creator in final meta-data
   , exportWithEmail        :: Bool -- ^ Include email in final meta-data
+  , exportWithTags         :: Bool -- ^ Keep tags as part of headlines
   , exportWithTodoKeywords :: Bool -- ^ Keep TODO keywords in headers
   }
 
@@ -258,5 +259,6 @@ defaultExportSettings = ExportSettings
   , exportWithAuthor = True
   , exportWithCreator = True
   , exportWithEmail = True
+  , exportWithTags = True
   , exportWithTodoKeywords = True
   }