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runLeft/runRight to construct insertion/deletion ranges.

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This commit is contained in:
Rob Rix 2016-02-29 10:02:53 -05:00
parent 768e3fedba
commit e678c863b3
1 changed files with 2 additions and 3 deletions
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5
src/Alignment.hs
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@ -23,15 +23,14 @@ splitDiffByLines :: Diff leaf Info -> Both Int -> Both (Source Char) -> ([Row (S
splitDiffByLines diff previous sources = case diff of
Free (Annotated annotation syntax) -> (splitAnnotatedByLines sources (ranges annotation) (categories annotation) syntax, ranges annotation)
Pure (Insert term) -> let (lines, range) = splitTermByLines term (runRight sources) in
(makeRow EmptyLine . fmap (Pure . SplitInsert) <$> lines, Both (rangeAt prevLeft, range))
(makeRow EmptyLine . fmap (Pure . SplitInsert) <$> lines, Both (rangeAt $ runLeft previous, range))
Pure (Delete term) -> let (lines, range) = splitTermByLines term (runLeft sources) in
(flip makeRow EmptyLine . fmap (Pure . SplitDelete) <$> lines, Both (range, rangeAt prevRight))
(flip makeRow EmptyLine . fmap (Pure . SplitDelete) <$> lines, Both (range, rangeAt $ runRight previous))
Pure (Replace leftTerm rightTerm) -> let Both ((leftLines, leftRange), (rightLines, rightRange)) = splitTermByLines <$> Both (leftTerm, rightTerm) <*> sources
(lines, ranges) = (Both (leftLines, rightLines), Both (leftRange, rightRange)) in
(uncurry (zipWithDefaults makeRow EmptyLine EmptyLine) . runBoth $ fmap (fmap (Pure . SplitReplace)) <$> lines, ranges)
where categories annotations = Diff.categories <$> Both annotations
ranges annotations = characterRange <$> Both annotations
(prevLeft, prevRight) = runBoth previous
-- | A functor that can return its content.
class Functor f => Has f where