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-rw-r--r--src/Haddock/Parser.hs11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/Haddock/Parser.hs b/src/Haddock/Parser.hs
index e9bed2a5..a6ad817c 100644
--- a/src/Haddock/Parser.hs
+++ b/src/Haddock/Parser.hs
@@ -302,10 +302,19 @@ takeNonEmptyLine = do
(++ "\n") . decodeUtf8 <$> (takeWhile1 (/= '\n') >>= nonSpace) <* "\n"
birdtracks :: Parser (Doc a)
-birdtracks = DocCodeBlock . DocString . intercalate "\n" <$> many1 line
+birdtracks = DocCodeBlock . DocString . intercalate "\n" . stripSpace <$> many1 line
where
line = skipHorizontalSpace *> ">" *> takeLine
+-- | Strip leading spaces, but ignore blank lines. If any of the lines don't
+-- start with a ' ', however, we don't touch the block.
+stripSpace :: [String] -> [String]
+stripSpace = fromMaybe <*> mapM strip
+ where
+ strip (' ':xs) = Just xs
+ strip "" = Just ""
+ strip _ = Nothing
+
-- | Parses examples. Examples are a paragraph level entitity (separated by an empty line).
-- Consecutive examples are accepted.
examples :: Parser (Doc a)