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Add a toPrettyDiff function to abstract the construction of pretty diffs away.

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Rob Rix 2016-05-24 13:04:10 -04:00
parent 24a732322c
commit e0e7f0fa4a
1 changed files with 5 additions and 0 deletions
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5
test/AlignmentSpec.hs
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@ -218,6 +218,11 @@ toAlignedChildren = join . (`evalState` both 0 0) . mapM go
put $ (+) <$> prev <*> modifyJoin (fromThese 0 0) (length <$> contents)
return []
toPrettyDiff :: [BranchElement] -> PrettyDiff [(String, Range)]
toPrettyDiff elements = PrettyDiff sources (alignBranch id children ranges)
where (sources, ranges) = toSourcesAndRanges elements
children = toAlignedChildren elements
instance Arbitrary BranchElement where
arbitrary = oneof [ key >>= \ key -> Child key <$> joinTheseOf (contents key)
, Margin <$> joinTheseOf margin ]