vi-mode.js: lightweight vi-like editor component for the web

Setup for local development: clone the repo and cd into it, then run:

npm ci
npx simple-git-hooks

# dev commands
npm run dev # starts local dev server for live demo
npm run test:watch # runs unit tests in watch mode

Roadmap and Changelog

Planned features for upcoming releases:

• deal with horizontal and vertical scrolling
• configuration options (like colors and tab size)
• change commands in normal mode c[motion], cc
• word based motions w, b, e

v0.4.0: visual mode

• [x] visual mode via v and V with all supported motions we have so far
• [x] a single internal register for yanked and deleted text
• [x] delete commands in normal mode d[motion] copy to that register
• [x] yank and paste commands in normal (yy, y[motion], p, P) and visual mode (y)

v0.3.0: architecture overhaul

• [x] separate motions and edit actions from keymap and buffer
• [x] undo/redo stack via [n]u and [n]Ctrl+r
• [x] composed actions dd, d[motion], [n]hjkl

v0.2.1: tiny fixes

• [x] fix behavior of x at end of line
• [x] apply thorough linting

v0.2.0: a few more commands

• [x] normal mode motions: 0, $
• [x] delete commands in normal mode: x, D
• [x] more ways to enter insert mode: a, A, o, O

v0.1.0: first mvp

• [x] basic text editor component with mode-aware cursor
• [x] normal mode: hjkl motions, i to insert
• [x] insert mode: normal text input, Backspace and Delete working, Esc to normal
• [x] CI: unit tests, coverage report and live demo on GitHub Pages