On the previous post I covered how I can call external programs as new processes and interact with their inputs or outputs. Here I will use directly the foreign libraries written in C using Guile’s foreign function interface . In this series of posts I record how to use Guile as a scripting language and solve various tasks related to email work.
Most of the pre-processing work of my emails was already solved with a combination of a bash script, which uses the notmuch cli and the python package afew . However, I’m learning Guile and I need a real task to solve to practice the language.
I have been using ledger to keep track of my expenses. It is simple, it doesn’t interfere with my workflow, and I can edit data with my favorite text editor Emacs, because ledger only deals with plain text files. I love this workflow.
In my personal project to learn LISP, I decided to try GNU Guile . It is a Scheme implementation and it is the official extension language of the GNU project . To learn, my first step is to actually use it, and my first minimal toy project, will be a Habit tracker. There are plenty habit trackers around, to make another one, yet this is just mine, done for my personal joy of implementing it in a language I’m trying to learn.
I stumbled upon this talk by Douglas Kruger on YouTube. I decided to take notes and write my own summary to deepen the learning experience. It provides me with a reference for later times. Douglas Kruger mentions 8 points, I reorganized them into 5 themes.