helix

Helix

Keys

Normal

key	description
alt + w	toggle soft-wrap
alt + /	toggle comments
ctrl + y	yank to global clipboard
] (2x)	next buffer
[ (2x)	previous buffer
{	rotate selection backwards
}	rotate selection forwards
shift + left	select mode
shift + right	select mode

Space Mode

key	description
d	close buffer
D	force close buffer
q	quit helix
Q	force quit helix
s	write changes to disk
S	force write changes to disk
v, o	open file in vertical split
v, n	open scratch buffer in vertical split
v, q	close vertical split buffer
H	jump to left split
L	jump to right split
space	add newline below
up	add newline above

Go To Mode

key	description
j	go to next change
k	go to previous change

Comma Mode

key	description
,	keep primary selection
/	toggle comments
p	paste contents from the clipboard after the cursor
P	paste contents from the clipboard before the cursor
r	reload buffer
R	reload all buffers
c, r	reload config
f	format

Insert

key	description
j, k	exit insert mode

---

Default Language Servers

• simple-completion-language-server
• languages.toml

Get a list of languages with an installed LSP.

hx --health

LSP List

name	lang	type	package manager
@astrojs/language-server	astro	LSP	npm
prettier-plugin-astro	astro	formatter	npm
bash-language-server	bash	LSP	npm
dot-language-server	dot	LSP	npm
svelte-language-server	svelte	LSP	npm
typescript-svelte-plugin	svelte	LSP	npm
typescript	typescript	LSP	npm
typescript-svelte-plugin	typescript	LSP	npm
vscode-langservers-extracted	css	LSP	npm
emmet-ls	html	LSP, snippet	npm
vscode-html-languageserver-bin	html	LSP	npm
prettier	css, yaml, html	formatter	npm
@tailwindcss/language-server	tailwindcss	LSP	npm, nix
prettier-plugin-tailwindcss	tailwindcss	formatter	npm
deno	markdown, html, js, json, yaml, css, astro, svelte	lsp, formatter, snippet	deno, nix
marksman	markdown	LSP	brew, cargo
lua-language-server	lua	LSP	brew
python-lsp-server	python	LSP	brew
black	python	formatter	brew, pip
yaml-language-server	yaml	LSP	brew
ansible-lint	yaml	LSP	brew
ansible/ansible-language-server	ansible	LSP	npm
taplo	toml	LSP	cargo
sqls	sql	LSP	nix, pip
sql-language-server	sql	LSP	NPM
sql-formatter	sql	formatter	NPM
nixpkgs-fmt	nix	fomatter	nix

Deno LSP

Deno provides a LSP via the deno lsp command. It supports JavaScript and TypeScript.

npm i -g @astrojs/language-server bash-language-server dot-language-server svelte-language-server typescript-language-server typescript vscode-langservers-extracted @ansible/ansible-language-server typescript-svelte-plugin sql-formatter emmet-ls

svelte

Add to each project's [js|ts]config.json

{
    "compilerOptions": {
        ...
        "plugins": [{
            "name": "typescript-svelte-plugin"
        }]
    }
}

brew LSP

brew install marksman lua-language-server python-lsp-server yaml-language-server ansible-lint

cargo

• taplo (toml)

Piping selections

Piping certain things proved challenging, luckily xargs came to the rescue.

pipe:xargs -I {} echo {} | xargs -I {} grep {} attachment.csv | sed -E 's/(.*),(.*)/\1/g'

Alt Workaround (macOS)

Instead of a getting all fancy with the terminal config use the literal character in the helix config. workaround

Links

language.toml

To Do

• Update from release 24.03