Re: [Haskell-beginners] Unmaybe

Check out this info http://en.wikibooks.org/wiki/Haskell/Hierarchical_libraries/Maybe On Tue, May 14, 2013 at 11:21 AM, Adrian May

wrote:

Hi there,

I have a really annoying scrap of code:

unmaybe Nothing = mempty unmaybe (Just dia) = dia

It happened because I'm using Diagrams but building my diagram requires looking something up in a list using findIndex, which returns Maybe Int.

How do I rid myself of this blotch?

TIA, Adrian.

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