Will Hopkins willothy

introduction

inspired by a friend’s fledgling language design and motivated by the JeanHeyd Meneide RustConf Fiasco™ and improving the story for compile-time introspection, i decided i needed a place to spew the last year’s musings on variadic generics in Rust in one mighty, less-than-understandable catharsis.

i think somewhere in here is a considered and reasonable design, so that’s neat!

perhaps i’ll make this an RFC one day. probably not. you have my express permission to do that yourself.

variadic generics?

this nugget of language jargon encapsulates the idea that we might want to bind to an arbitrarily large list of generic parameters, all at once. there are many reasons to want to do this:

we might want to implement a trait for all tuples, where each element of the tuple implements the same trait. [bevy_ecs's Bundle trait](https://github.com/bevyengine/bevy/blob/87f7d013c0d4f45a93a4c29e5d48237f4b512ca2/crates/bevy_ecs/src/bundle.

Semantic Highlighting in Neovim

What is Semantic Highlighting?
Default Highlighting
Using LspTokenUpdate for Complex Highlighting
- Highlighting Based on More Than One Modifier
Dealing with Ambiguity

True Color (24-bit) and italics with alacritty + tmux + vim (neovim)

This should make True Color (24-bit) and italics work in your tmux session and vim/neovim when using Alacritty (and should be compatible with any other terminal emulator, including Kitty).

Testing colors

Running this script should look the same in tmux as without.

curl -s https://gist.githubusercontent.com/lifepillar/09a44b8cf0f9397465614e622979107f/raw/24-bit-color.sh >24-bit-color.sh

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

	---Utility for keymap creation.
	---@param lhs string
	---@param rhs string\|function
	---@param opts string\|table
	---@param mode? string\|string[]
	local function keymap(lhs, rhs, opts, mode)
	opts = type(opts) == 'string' and { desc = opts }
	or vim.tbl_extend('error', opts --[[@as table]], { buffer = bufnr })
	mode = mode or 'n'
	vim.keymap.set(mode, lhs, rhs, opts)

	local n = require("nui-components")
	local spinner_formats = require("nui-components.utils.spinner-formats")

	local renderer = n.create_renderer({
	width = 100,
	height = 24,
	})

	local signal = n.create_signal({
	active_tab = "tab-1",

	https://github.com/muan/unicode-emoji-json

	° — degree
	× — times

	🇿🇦
	🇬🇧

	🛜 — wireless
	🔗 — link

	#! @python3@/bin/python3 -B
	import argparse
	import os
	import os.path
	import sys
	import errno
	import subprocess
	import glob
	import datetime
	import shutil