<div dir="ltr">Check out this info<div><a href="http://en.wikibooks.org/wiki/Haskell/Hierarchical_libraries/Maybe">http://en.wikibooks.org/wiki/Haskell/Hierarchical_libraries/Maybe</a><br></div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Tue, May 14, 2013 at 11:21 AM, Adrian May <span dir="ltr"><<a href="mailto:adrian.alexander.may@gmail.com" target="_blank">adrian.alexander.may@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi there,<div><br></div><div>I have a really annoying scrap of code:</div><div><br></div><div><div>unmaybe Nothing = mempty</div><div>unmaybe (Just dia) = dia</div><div><br></div><div>
It happened because I'm using Diagrams but building my diagram requires looking something up in a list using findIndex, which returns Maybe Int.</div><div><br></div><div>How do I rid myself of this blotch?</div>
</div><div><br></div><div>TIA,</div><div>Adrian.</div><div><br></div><div><br></div></div>
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