Neil Mitchell's Blog (Haskell etc)

Summary: I walk through optimising a Haskell string splitter to get a nice tight inner loop. We look at the Haskell code, the generated Core...

Summary: Shake can interpret some Makefiles, just like Make. Since version 0.10 the Shake build system also installs a shake executable th...

Summary: Shake 0.11 is out, upgrading should be pretty easy. Shake is a Haskell library for writing build tools, and I've just released...

Summary: Shake can predict you how long your build will take. The prediction makes use of stateful applicative streams. The Shake build syst...

Summary: Shake could corrupt the build database under rare circumstances. Last week I finally figured out why, and fixed it. The Shake build...

I wrote an article for the Communcations of the ACM which is now available on the ACM Queue , entitled Leaking Space , all about space leak...

Summary: If you use NSIS plugins along with LZMA solid compression, make sure you reference the plugins first. The NSIS Windows Installer s...

Summary: I've just released NSIS-0.2.3 which supports NSIS plugins. My NSIS library is a Haskell EDSL to make it easier to write NSIS W...

Summary: Generating graphs from Haskell modules is easy, using Haskell-src-exts and Uniplate. In my recent Uniplate talk I showed a grap...

I'll be talking at two events this month - hope to see some people there! 9 Oct 2013 - Haskell eXchange 2013 Everyone should use a G...

Summary: I wrote a simple program to detect repeated words in a file. This post gives a walk-through of how I developed it. My wife is cur...

Summary: New versions of unordered-containers cause a massive performance regression in uniplate (10x slower is typical), which I have fixed...

Summary: Haskell programmer willing to relocate to Singapore? Come work for Standard Chartered! Standard Chartered , the bank where I work...

Summary: You can now build LLVM using Shake, and a rebuild with nothing to do goes massively faster than make (0.8s vs 199s) and fractionall...

Summary: There are three types of dependencies you might want to express in a build system, all of which are supported by Shake. A build s...

Summary: I've identified two fixed-size buffer errors in the NSIS compiler generator, one of which is a buffer overflow leading to a seg...

Summary: Shake is now hosted on GitHub and there is a mailing list. I've just converted Shake over to Git, hosted on GitHub, and creat...

Summary: Shake v0.3 had a serious space leak that went undiagnosed for over a year, this post describes how I tracked it down. Introducti...