Category Archives: haskell

Using multiple versions of GHC in parallel with GNU stow

Do any of the following apply to you? You sometimes hack on GHC. You sometimes want to try out an unreleased GHC version. You maintain a library and want to make sure it builds with several different versions of GHC. … Continue reading

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Creating documents with embedded diagrams

If you read my recent post about type algebra, you may have wondered how I got all those nice images in there. Surely creating the images and then inserting them into the post by hand would be rather tedious! Indeed, … Continue reading

Posted in diagrams, haskell, projects, writing | Tagged , , , , , , , , , | 9 Comments

BlogLiterately 0.5.2 release, with improved image uploading

Just a quick note to say that I’ve just released version 0.5.2 of BlogLiterately. (For more information about what it does, see what I’ve written about previous releases here and here, and the documentation.) The new version keeps track of … Continue reading

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Identifying outdated packages in cabal install plans

Every time I build a Haskell package—whether using cabal or cabal-dev, whether something from Hackage or a development version of my own package—I always do a –dry-run first, and inspect the install plan to make sure it looks reasonable. I’m … Continue reading

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Monads: Easy or Hard?

Executive summary: they are actually both (or neither). It is easy to learn their definition but hard to grasp the consequences. Or we might say they are easy to know and hard to understand (grok). It is vitally important for … Continue reading

Posted in haskell, learning, teaching | Tagged , , , | 4 Comments

Diagrams mentoring at Hac Phi

Hac Phi is coming up in less than a month, August 3-5 here in Philadelphia: three days of hanging out with awesome people, eating good food, and hacking on Haskell projects. Judging by past instances, I promise you it will … Continue reading

Posted in diagrams, haskell, projects | Tagged , , | 3 Comments

BlogLiterately 0.5 release

I have now released version 0.5 of BlogLiterately. (You can read about the 0.4 release here.) This version does uploading of images! Here is proof: d’awww. (My previous post explains the problem and solution with image uploads.) It also allows … Continue reading

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New haxr release

I have just uploaded a new version of the haxr package (for writing XML-RPC clients and servers), having become the new maintainer. Here is how it happened. In a previous post I announced the release of BlogLiterately 0.4, a tool … Continue reading

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BlogLiterately 0.4 release

I have just released version 0.4 of BlogLiterately, a tool for authoring and uploading blog posts (especially Haskelly ones). Rob Greayer authored the first few versions of this useful tool, for which I’m very thankful. However, he doesn’t have the … Continue reading

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Announcing diagrams 0.5

I am pleased to announce the release of version 0.5 of diagrams, a full-featured framework and embedded domain-specific language for declarative drawing. Check out the gallery for examples of what it can do! Highlights of this release include: A new … Continue reading

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