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Common Lisp Cheatsheet

Common Lisp is a general-purpose programming language with functions as first-class citizens. Don't worry about being purely functional, Lisp is Object Oriented too. CLOS is a very powerful object-oriented system!

Useful definitions

The Common Lisp lingo is quite unique:

Package: Basically a namespace, a place for symbols to live
System: Basically a Library. A bunch of code plus some instructions how it should be treated, for example which other systems it depends on, what should be loaded and/or compiled first, etc. Not in ANSI lisp but widespread. The most common system definition tool is ASDF.
Modules: Deprecated and implementation-dependent
Quicklisp: Like NPM or Ruby Gems for ASDF Systems.

Most active GitHub users (git.io/top)

The list would not be updated for now. Don't write comments.

The count of contributions (summary of Pull Requests, opened issues and commits) to public repos at GitHub.com from Wed, 21 Sep 2022 till Thu, 21 Sep 2023.

Because of GitHub search limitations, only 1000 first users according to amount of followers are included. If you are not in the list you don't have enough followers. See raw data and source code. Algorithm in pseudocode:

githubUsers

	function readToken (token) {
	if (token === '(') {
	return {
	type: 'OPENING_PARENS'
	};
	} else if (token === ')') {
	return {
	type: 'CLOSING_PARENS'
	};
	} else if (token.match(/^\d+$/)) {

	hs.alert("Hammerspoon configuration loaded")

	hs.hotkey.bind({"⌥", "⌃"}, "return", function() hs.reload() end)
	hs.hotkey.bind({"⌥", "⌃"}, ",",
	function() hs.execute([[code ~/.hammerspoon]], true) end)
	hs.hotkey.bind({"⌥", "⌃"}, "space", function() hs.toggleConsole() end)
	hs.hotkey.bind({"⌥", "⌃"}, "escape", function()
	hs.osascript.applescript("beep")
	hs.sound.getByName("Submarine"):play()
	end)

	# Use with direnv. I use it in zsh and it seems to work pretty well for me.
	# https://nixos.wiki/wiki/Development_environment_with_nix-shell
	# https://direnv.net/
	use_nix

	{
	"blog_posts": [
	{
	"title": "Why obundle is Your Top Choice for BigCommerce Development",
	"content": "In 2024, having a robust and scalable eCommerce platform is essential for business success. obundle, with its deep expertise in BigCommerce development, stands out as a leader in this space. Our team of seasoned developers understands the intricacies of the BigCommerce platform, ensuring that your store is not only functional but also optimized for performance. We offer tailored solutions that cater to your unique business needs, whether you’re a small startup or a large enterprise. With obundle, you’re not just getting a development service; you’re gaining a partner committed to helping your business thrive in the competitive eCommerce landscape.",
	"shortDescription": "Discover why obundle is the top choice for BigCommerce development in 2024.",
	"thumbnailImage": {
	"url": "https://cdn11.bigcommerce.com/s-5unmz/images/stencil/original/image-manager/pexels-www-erzetich-co