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-rw-r--r--src/Text/Pandoc/Readers/Markdown.hs15
-rw-r--r--test/command/multiple-metadata-blocks.md15
2 files changed, 24 insertions, 6 deletions
diff --git a/src/Text/Pandoc/Readers/Markdown.hs b/src/Text/Pandoc/Readers/Markdown.hs
index 42d719e28..4790f83ff 100644
--- a/src/Text/Pandoc/Readers/Markdown.hs
+++ b/src/Text/Pandoc/Readers/Markdown.hs
@@ -254,12 +254,15 @@ yamlMetaBlock = try $ do
then return ()
else do
v' <- yamlToMeta v
- updateState $ \st ->
- let smeta = stateMeta' st
- in st{ stateMeta' =
- (do v'' <- v'
- m <- smeta
- return $ B.setMeta (T.unpack k) v'' m)}
+ let k' = T.unpack k
+ updateState $ \st -> st{ stateMeta' =
+ (do m <- stateMeta' st
+ -- if there's already a value, leave it unchanged
+ case lookupMeta k' m of
+ Just _ -> return m
+ Nothing -> do
+ v'' <- v'
+ return $ B.setMeta (T.unpack k) v'' m)}
) alist
Right Yaml.Null -> return ()
Right _ -> do
diff --git a/test/command/multiple-metadata-blocks.md b/test/command/multiple-metadata-blocks.md
new file mode 100644
index 000000000..27c5e3dae
--- /dev/null
+++ b/test/command/multiple-metadata-blocks.md
@@ -0,0 +1,15 @@
+If multiple blocks define a field, the first is used.
+
+```
+% pandoc -s -t native
+---
+foo: bar
+...
+
+---
+foo: bim
+...
+^D
+Pandoc (Meta {unMeta = fromList [("foo",MetaInlines [Str "bar"])]})
+[]
+```