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Collection of Haskell Articles

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William Yao provided a link collection of useful Haskell articles to the topic good design and good testing (see https://williamyaoh.com/posts/2019-11-24-design-and-testing-articles.html) .

Authors: William Yao, Matt Parsons, David Luposchainsky, Alexis King, Jasper Van der Jeugt, Tom Ellis, Michael Snoyman, Sandy Maguire, Oskar Wickström, Scott Wlaschin, Hillel Wayne

A big thanks to all authors!

I compiled all articles into a single PDF in LaTeX book format

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. You can find it here:

HaskellArticles V1.4Download

Updated Version (contains 2 more articles):

HaskellArticles_1_6Download

Github link: https://github.com/oswald2/haskell_articles

Have fun!

Architecture of a Real World Haskell Application

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There were numerous posts on reddit, SO and the like which were asking for how to architect real world Haskell applications. Well, this is my go at it for an in-house testing tool which is used extensively. I would not claim myself an advanced Haskeller, some of the code is probably not idiomatic Haskell (and also some parts are really, ah well, horrible), it’s (by it’s nature) very stateful (read: imperative), BUT… it works. It even worked out better than I thought initially…

How it came to this…

I am working in the space domain and I am mostly concerned with mission control systems, especially the ones from the ESA (European Space Agency) named SCOS-2000. What we needed was a tool to be able to test certain new features implemented in the mission control system with a closed-loop test. The standard tools that come with SCOS are quite limited (and buggy) and written quite verbosely in C++. So why not try to create one in Haskell?

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