neorepl
neovim REPL for lua and vim script
Works best with neovim 0.8
Start a new instance with :Repl.
In insert mode type /h and enter to see available commands.
NOTE: If you're using an auto-completion plugin like nvim-cmp, read
:h neorepl-using-with-other-plugins!
Starts in lua mode by default. You can switch modes with /vim (short version:
/v) for vim script and /lua (short version: /l) for lua. You can also run
one-off commands with them, like for example /v ls to list buffers.
Multiple lines can get evaluated when line continuations start with \ as the
very first character in the line. If you need to evaluate a line that starts
with / or \, add a space before. Note that vim script has line escaping that
works just like this. So to break lines in a single expression with vim script,
there has to be two backslashes. You can break line in insert mode with CTRL-J.
Lua has its own environment, variables from the REPL won't leak to the global
environment. Global environment is referenced in the _G variable. In vim script
you can use the s: scope, but it's shared between all REPL instances for now.
You can switch buffer and window context with /b and /w commands, so things
like vim.api.nvim_set_current_line() or :s/foo/bar/g will run on the other
buffer.
A new REPL instance can be also spawned with require'neorepl'.new{}. Example
function that mimics vim's cmdwin or exmode:
vim.keymap.set('n', 'g:', function()
-- get current buffer and window
local buf = vim.api.nvim_get_current_buf()
local win = vim.api.nvim_get_current_win()
-- create a new split for the repl
vim.cmd('split')
-- spawn repl and set the context to our buffer
require('neorepl').new{
lang = 'vim',
buffer = buf,
window = win,
}
-- resize repl window and make it fixed height
vim.cmd('resize 10 | setl winfixheight')
end)For the list of available options see :h neorepl-config.