vim-elisp

Vim / Neovim support for Emacs Lisp, targeting elisprs — an Emacs Lisp implementation written in Rust that lowers .el to the fusevm bytecode VM with a three-tier Cranelift JIT.

Feature matrix

Capability	Mechanism
Filetype detection	`*.el`, `.emacs`, `_emacs`, `elisp` shebang
Syntax highlighting	standalone `syntax/elisp.vim` (special forms + subrs)
Indentation	Vim built-in `lisp` indenter + `lispwords`
Run / `:make`	`elisp %` (evaluate the file)
Language server	vim-lsp / coc.nvim via `elisp --lsp`
Debug adapter	nvim-dap via `elisp --dap`

Install

" vim-plug
Plug 'MenkeTechnologies/vim-elisp'

# backend binary
brew install menketechnologies/menketech/elisprs

Syntax token categories

Comments (;), shebang, TODO / FIXME markers
Strings, char literals (?a, ?\C-x), keyword symbols (:foo)
Quote sugar: ' ` , ,@ #'
Numbers, including #x / #o / #b radices and floats
The 18 special forms (defun, let, cond, lambda, …)
The built-in subr set exposed by the elisp LSP corpus
Names introduced by defun / defmacro / defvar / defconst

Run, lint, and language server

:ElispRun     " evaluate the current file via elisp
:make         " same, into the quickfix list

elisprs has no separate lint mode — evaluating a file with elisp FILE.el surfaces both parse and runtime errors. Live diagnostics come from the language server (elisp --lsp), registered automatically with vim-lsp.

Debug adapter

local dap = require('dap')
dap.adapters.elisp = { type = 'executable', command = 'elisp', args = { '--dap' } }
dap.configurations.elisp = {
  { type = 'elisp', request = 'launch', name = 'Run Emacs Lisp program', program = '${file}' },
}

Engineering report · Source on GitHub