Neil Mitchell's Blog (Haskell etc)

The Uniplate library contains many traversal operations, some based on functions in SYB (Scrap Your Boilerplate) . SYB provides everywhere ...

Haskell has long been my favoured scripting language, and in this post I thought I'd share one of my more IO heavy scripts. I have an ex...

HLint is a tool for suggesting improvements to Haskell code. Recently I've put some effort in to optimisation and HLint is now over 20 ...

A few days ago I posted about my plan to use .ghci files for all my projects. I am now doing so in at least five projects, and it's wor...

I develop a reasonable number of different Haskell projects, and tend to switch between them regularly. I often come back to a project after...

This tutorial explains how to perform IO in Haskell , without attempting to give any understanding of monads. We start with the simplest exa...

The current section of the GHC manual on creating DLL's on Windows is fairly confusing to read, and has some bugs (i.e. 3605 ). Since I...

View Patterns are an interesting extension to the pattern matching capabilities of Haskell, implemented in GHC 6.10 and above. After using ...

HLint is a tool for automatically suggesting improvements to your Haskell code. This post describes how I use HLint, and provides and some ...

It's been a long time since I last blogged (about 3 months). Since then I've had a paper on Firstify accepted in to the Haskell Sym...

A few weeks ago David Miani asked how to write concise queries over a data type . The answer is certainly generic programming, a technique t...

Today I spotted that I could no longer push to my darcs repos hosted at York University. A little more checking showed that my home page had...

Recently on the Haskell mailing list there has been some discussions of which packages Hoogle searches by default. One person remarked that ...

Haskell has some ugly corners - not many, but a few. One that many people consider exceptionally ugly is the monomorphism restriction. In th...

Normally I give blog posts detailing the fun, interesting or advanced stuff I do with Haskell. But that isn't a real representation of m...

Kurt Schelfthout has just released FsCheck 0.4 , a tool similar to QuickCheck but for F#. While working at my internship for Credit Suisse ...

In my last post on F# I mentioned that do mapM f xs; return 1 caused a space leak, and that the programmer should have written mapM_ . I al...

I've recently started a full-time job at Standard Chartered . Before that I was doing an internship with Credit Suisse , where I spent a...

Update: See http://neilmitchell.blogspot.com/2011/12/enabling-reply-to-all-in-outlook.html for an updated version of this functionality. S...

It's been a little while since I last posted. I've recently got back from ICFP 2008 , and quite a few people asked me what I was doi...