ivy

Ivy aims to be a text editor (very) loosely inspired by vim and emacs, for the 21st century. It is in very early development and could be more accurately thought of as a collection of hopes and dreams, than a working editor.

Design Goals / Decisions

• Written in Racket. This was chosen because Racket is:
  • reasonably performant
  • well supported across OSes
  • interpreted, this makes it easier to write plugins (this is the step Rust failed)
• Backed by a rope
• Offload all language processing onto LSP servers and treesitter.
• Write a backend and frontend independently so you can swap out frontends
  • start off with a vim-inspired CLI frontend

Inspiration

• Xi Editor
  • I hadn't actually seen it when putting together a napkin-sketch plan for ivy, interesting to see we arrived at many similar design decisions

How to Run

TODO

Tests

lol

Tooling

Auto-formatting

Currently using raco fmt:

$ raco pkg install fmt

All racket files in the repo can be formatted in place with:

$ find . -type f -name "*.rkt" | xargs raco fmt -i --width 80 --max-blank-lines 2

A precommit-hook can be added by adding the following to .git/hooks/pre-commit and making it executable:

#!/usr/bin/env bash

FILES=$(git diff --name-only --cached --diff-filter=ACMR | grep ".*\.rkt$" | sed 's| |\\ |g')
[ -z "$FILES" ] && exit 0

# Format files
 echo "$FILES" | xargs raco fmt -i --width 80 --max-blank-lines 2

 # Add files back
 echo "$FILES" | xargs git add

 exit 0