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Partition the intersecting children instead of expecting them to be strictly ordered.

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This commit is contained in:
Rob Rix 2016-05-26 10:11:44 -04:00
parent d821349e75
commit 07ba502d1d
1 changed files with 1 additions and 1 deletions
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src/Alignment.hs
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@ -156,7 +156,7 @@ alignBranch getRange children ranges = case intersectingChildren of
(rightLine, remainingAtRight) = maybe (id, []) (first (:)) $ rightRange >>= lineAndRemainingWhere (isThat . runJoin . head . copoint) asymmetricalChildren in
leftLine $ rightLine $ alignBranch getRange (remainingAtLeft ++ remainingAtRight ++ nonIntersectingChildren) (modifyJoin (uncurry bimap (advancePast asymmetricalChildren)) ranges)
where (intersectingChildren, nonIntersectingChildren) = partition (or . intersectsFirstLine headRanges) children
(asymmetricalChildren, remainingIntersectingChildren) = break (isThese . runJoin . head . copoint) intersectingChildren
(remainingIntersectingChildren, asymmetricalChildren) = partition (isThese . runJoin . head . copoint) intersectingChildren
intersectsFirstLine ranges = maybe (False <$ ranges) (intersects getRange ranges) . listToMaybe . copoint
Just headRanges = sequenceL $ listToMaybe <$> Join (runBothWith These ranges)
(leftRange, rightRange) = splitThese headRanges