A simple lazy snippet to quickly surround selected code with triple backticks in neovim to paste in ChatGPT ;)

surround-visual-selection-with-backticks.lua

local function surround_selection_with_backticks()
	-- Get the visual selection
	local lines = get_visual_selection()

	-- Ensure lines are not nil
	if not lines or #lines == 0 then
		print("No lines selected")
		return
	end

	-- Surround the text with triple dots
	table.insert(lines, 1, "```")
	table.insert(lines, "```")

	-- Join the lines into a single string
	local text = table.concat(lines, "\n")

	-- Copy the text to the system clipboard
	vim.fn.setreg("+", text)
	print("Copied to clipboard with surrounding dots")
end

local function get_visual_selection()
	local _, ls, cs, _ = unpack(vim.fn.getpos("v"))
	local _, le, ce, _ = unpack(vim.fn.getpos("."))

	-- Swap if the selection is made from bottom to top
	if ls > le or (ls == le and cs > ce) then
		ls, le = le, ls
		cs, ce = ce, cs
	end

	return vim.api.nvim_buf_get_lines(0, ls - 1, le, false)
end

-- Map it to a key to run the above function post your visual selection!
vim.keymap.set("v", "<leader>c", surround_selection_with_backticks, { desc = "Surround selection with backticks" })