interpolated string C#

interpolated.lua

{
        "InsertCharPre",
        {
            pattern = { "*.cs" },
            --- @param opts AutoCmdCallbackOpts
            --- @return nil
            callback = function(opts)
                -- Only run if f-string escape character is typed
                if vim.v.char ~= "{" then return end

                -- Get node and return early if not in a string
                local node = vim.treesitter.get_node()

                if not node then return end
                if node:type() ~= "string_literal" then node = node:parent() end
                if not node or node:type() ~= "string_literal" then return end

                local row, col, _, _ = vim.treesitter.get_node_range(node)

                vim.api.nvim_input("<Esc>m'" .. row + 1 .. "gg" .. col + 1 .. "|i$<Esc>`'la")
            end
        }
    }