Example configurations

Neovim configuration

Load the plugin using lazy.nvim package manager. We disable the default mappings:

{
    "jpalardy/vim-slime",
    lazy = false,
    init = function()
        vim.g.slime_no_mappings = 1
    end
},

We will define our custom mappings per file type.

For example, we can define the following mappings for the r file type.

Put the following in $HOME/.config/nvim/after/ftplugin/r.lua:

vim.g.slime_cell_delimiter = "# %%"
vim.api.nvim_set_keymap("n", "<Leader>a", ':execute "normal \\<Plug>SlimeLineSend"<CR>j', {noremap = true})
vim.api.nvim_set_keymap("v", "<Leader>s", "<Plug>SlimeRegionSend", {noremap = true})
vim.api.nvim_set_keymap(
    "n",
    "<Leader>s",
    ':execute "normal \\<Plug>SlimeSendCell"<CR>/' .. vim.g.slime_cell_delimiter .. "<CR>:nohlsearch<CR>",
    {noremap = true}
)

This defines # %% as out cell separator, <Leader>a in normal mode to send a single line and move the cursor down to the next line, <Leader>s in visual mode to send the highlighted region, <Leader>s in normal model to send the cell we are within and move the cursor to the next cell.

Directional Sending with TMUX

Sometimes the tmux pane you're targeting is in a specific direction with respect to your Vim session. The following mappings can help:

xmap <silent> <c-c><c-h> :exec 'let g:slime_default_config.target_pane = "{left-of}"'<cr><Plug>SlimeRegionSend
xmap <silent> <c-c><c-j> :exec 'let g:slime_default_config.target_pane = "{down-of}"'<cr><Plug>SlimeRegionSend
xmap <silent> <c-c><c-k> :exec 'let g:slime_default_config.target_pane = "{up-of}"'<cr><Plug>SlimeRegionSend
xmap <silent> <c-c><c-l> :exec 'let g:slime_default_config.target_pane = "{right-of}"'<cr><Plug>SlimeRegionSend
nmap <silent> <c-c><c-h> :exec 'let g:slime_default_config.target_pane = "{left-of}"'<cr><Plug>SlimeParagraphSend
nmap <silent> <c-c><c-j> :exec 'let g:slime_default_config.target_pane = "{down-of}"'<cr><Plug>SlimeParagraphSend
nmap <silent> <c-c><c-k> :exec 'let g:slime_default_config.target_pane = "{up-of}"'<cr><Plug>SlimeParagraphSend
nmap <silent> <c-c><c-l> :exec 'let g:slime_default_config.target_pane = "{right-of}"'<cr><Plug>SlimeParagraphSend

This relies on tmux's special tokens to target panes relative to the current one. Another side-effect of these mappings is that since they update the configuration for the default target pane anytime they're triggered, the original <c-c><c-c> mapping will "remember" that and will become a shortcut for simply targeting the pane that was last targeted.