Trying to make Haskell-related things work on Windows, you can learn a lot about Unix-like operating systems. Sometimes you can learn about Windows too. Looking at RIO.Process.findExecutable provided by rio-0.1.12.0, I learnt about the PATHEXT environment variable. PATH and PATHEXT The Command Prompt (cmd.exe) and other executables use the environment variables PATH and PATHEXT to […]
Help? Help.
The package optparse-applicative provides a Haskell library for parsing options at the command line. A minimal example, providing only minimal help, is as follows:
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module Main (main) where import Options.Applicative main :: IO (() -> ()) main = execParser (info helper fullDesc) |
On Windows 10, the ‘Usage:’ help text depends on how the executable is called and can include a filename extension. For example, at the Command Prompt, a test executable, opTest.exe, […]
Lawnmower Key
The Gtech Cordless Lawnmower comes with a plastic safety key. If the key is misplaced, the mower will safely not work. A spare key became a 3D printing project. I measured the dimensions of the key using a digital caliper and modelled it in Autodesk’s Fusion 360. I exported the model as an STL file […]