Popularity
3.5
Declining
Activity
0.0
Stable
4
2
1

Monthly Downloads: 38
Programming language: Haskell
License: BSD 3-clause "New" or "Revised" License
Tags: Data    

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possible

Three valued Data.Maybe

Maybe lacks the information if Nothing represents missing or empty value. The idea is to have http://en.wikipedia.org/wiki/Three-valued_logic for values. Depends on Aeson having missing value.

-- It is mainly used in modified aeson where it gives the extra information about value being missing present or set to null. Modified aeson can derivie {To,From}JSON instances for it.

The plan is to be able to support PATCH from Google API eg. https://github.com/tolysz/video/blob/master/Google/Api/Youtube/Videos.hs