How to insert new lines in delimiter pair depending on the input?

[gaoqiangks]

For example, I have the following configuration.
["E"] = {
add = function()
local config = require("nvim-surround.config")
local result = config.get_input("Input:")

I want to add new lines in delimeter pair when result = "equation", and don't add new lines when result = "$". Is there any way to realize this?

[kylechui]

The main thing to note is that multi-line strings are denoted using tables of strings. Thus { "$", "" }, { "", "$" } is a pair of dollar signs on new lines above/below the cursor. You should be able to use an if statement to determine what value you wish to return. More info can be found in the surrounds.add section of the help menu.