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1. maybeToList :: Maybe a -> [a]

   ghc-internal	GHC.Internal.Data.Maybe

   The maybeToList function returns an empty list when given Nothing or a singleton list when given Just.

   Examples

   Basic usage:

   >>> maybeToList (Just 7)
   [7]
   

   >>> maybeToList Nothing
   []
   

   One can use maybeToList to avoid pattern matching when combined with a function that (safely) works on lists:

   >>> import GHC.Internal.Text.Read ( readMaybe )
   
   >>> sum $ maybeToList (readMaybe "3")
   3
   
   >>> sum $ maybeToList (readMaybe "")
   0
   

2. module GHC.Internal.Data.OldList

   Operations on lists.

3. type ColorList = [WeightedColor]

   graphviz	Data.GraphViz.Attributes.Colors

   The sum of the optional weightings must sum to at most 1.

4. toColorList :: [Color] -> ColorList

   graphviz	Data.GraphViz.Attributes.Colors

   For a list of colors without weightings.

5. newtype LayerList

   graphviz	Data.GraphViz.Attributes.Complete

   A list of layer names. The names should all be unique LRName values, and when printed will use an arbitrary character from defLayerSep. The values in the list are implicitly numbered 1, 2, ....

6. LayerListSep :: LayerListSep -> Attribute

   graphviz	Data.GraphViz.Attributes.Complete

   Valid for: G; Default: LLSep ","; Notes: requires Graphviz >= 2.30.0

7. newtype LayerListSep

   graphviz	Data.GraphViz.Attributes.Complete

   No documentation available.

8. newtype ZipList a

   graphviz	Data.GraphViz.Parsing

   Lists, but with an Applicative functor based on zipping.

   Examples

   In contrast to the Applicative for List:

   >>> (+) <$> [1, 2, 3] <*> [4, 5, 6]
   [5,6,7,6,7,8,7,8,9]
   

   The Applicative instance of ZipList applies the operation by pairing up the elements, analogous to zipWithN

   >>> (+) <$> ZipList [1, 2, 3] <*> ZipList [4, 5, 6]
   ZipList {getZipList = [5,7,9]}
   

   >>> (,,,) <$> ZipList [1, 2] <*> ZipList [3, 4] <*> ZipList [5, 6] <*> ZipList [7, 8]
   ZipList {getZipList = [(1,3,5,7),(2,4,6,8)]}
   

   >>> ZipList [(+1), (^2), (/ 2)] <*> ZipList [5, 5, 5]
   ZipList {getZipList = [6.0,25.0,2.5]}
   

9. ZipList :: [a] -> ZipList a

   graphviz	Data.GraphViz.Parsing

   No documentation available.

10. getZipList :: ZipList a -> [a]

    graphviz	Data.GraphViz.Parsing

    No documentation available.

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