Learn By Example: Debugging Emacs Lisp
Jon Eskin's Blog, December 6, 2022
Abstract
In this post, I’ll show how I used basic capabilities of the built-in Emacs Lisp debugger such as suspending execution, stepping through code, and adding watchpoints to solve a day-to-day issue. Downloading Problems I recently stumbled upon an Advent of Code utility which lets you authenticate with the advent of code server via M-x advent-login and download your daily input file with M-x advent-input. When I ran advent-login followed by advent-input, instead of receiving my input file, Emacs printed an HTTP 400 error in the message area.
