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🔥 bimap.

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Rob Rix 2015-12-10 10:10:06 -05:00 committed by joshvera
parent 84a817b6bf
commit 641ba9b7b7
1 changed files with 0 additions and 6 deletions
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6
src/Split.hs
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@ -83,12 +83,6 @@ instance Monoid Line where
mappend (Line xs) EmptyLine = Line xs
mappend (Line xs) (Line ys) = Line (xs <> ys)
bimap :: ([HTML] -> [HTML]) -> ([HTML] -> [HTML]) -> Row -> Row
bimap _ _ (Row EmptyLine EmptyLine) = mempty
bimap f g (Row (Line a) (Line b)) = Row (Line $ f a) (Line $ g b)
bimap _ g (Row EmptyLine (Line b)) = Row EmptyLine (Line $ g b)
bimap f _ (Row (Line a) EmptyLine) = Row (Line $ f a) EmptyLine
instance Monoid Row where
mempty = Row EmptyLine EmptyLine
mappend (Row x1 y1) (Row x2 y2) = Row (x1 <> x2) (y1 <> y2)