Neil Mitchell's Blog (Haskell etc)

I recently released Hoogle 3.1 , in response to a security bug spotted by Tillmann Rendel. Checking back through my records, I found that Bo...

Cabal is the standard method of packaging Haskell programs and libraries for release. One problem I've encountered more than once is th...

In a recent blog post by Conal , he introduced the joinMaybes' function, defined as: filterMP' :: MonadPlus m => (a -> Bool) ...

In normal programming languages, there are many keywords for flow control , such as for , while etc. These flow control keywords encode a p...

I use darcs all the time. I have 15 repos listed on my website , and at least an additional 10 that haven't made that list yet. The mai...

Not a Haskell post, just a rant about how evil British Telecom (BT) are. When I got home this Christmas I was welcomed with a router sitting...

The entire academic community is based on the idea of taking previous people's work, and building on it. "Standing on the shoulders...

Normal lists are indexed by position, an associative list is one which is indexed by some other key. Take for example my fruit basket at the...

There have been various posts to reddit , and various discussions in the last few days of slides from talks I've given on Supero. It...

I've been working right through the night for the IFL post-publication deadline, trying to get benchmarks for most of the imaginary nofi...

After writing a VBA Macro to convert a PowerPoint with animation into a flat PowerPoint without animation (suitable for conversion to PDF),...

Updated: New and improved code can be found at PowerPoint -> PDF (Part 2) . I like to write talks in PowerPoint, because it has a nice i...

The recent Hal2 meeting in Germany has now had some talks posted online. Only one is in English, but it's a nice talk on generic progra...

* Warning: Benchmarks are hazardous to your health, always misleading and usually wrong. I've been working on optimising Haskell with th...

About ten days ago, AngloHaskell 2007 took place. AngloHaskell was a unique meeting, in many respects. I thought it might be appropriate to...

I've been doing more work on my Haskell optimiser , and its going quite well. Previously I've been attempting to get some initial be...

Update: You can actually further optimise the example in this post, which is done in my IFL 2007 Supero paper, available from my website . H...

Haskell has great support for abstraction: small functions can be written which do one general thing. Haskell also has great support for com...

(Not a Haskell post, but I wish it was, I hate writing VBScript!) When writing code for someone else, on a money per hour basis, you have to...

I've just released my Uniplate library , which hopes to remove the boilerplate from Haskell programs. I try to keep my PhD research as p...