How to cleanly take multiline input from the terminal using Elixir?

In Elixir, you can take multiline input from the terminal using the IO.gets/1 function in combination with a loop. Here's an example of how you can do it:

elixirCopy code
defmodule MultiLineInput do

  def read_input() do

    read_input([])

  end



  defp read_input(lines) do

    case IO.gets("") do

      {:ok, line} ->

        case String.trim(line) do

          "" -> lines

          line -> read_input([line | lines])

        end

      _ ->

        lines

    end

  end

end



# Usage example

input = MultiLineInput.read_input()

IO.inspect(input)

Here, we define a module MultiLineInput that provides the read_input/0 function to read multiline input. It uses the IO.gets/1 function to read each line from the terminal. The read_input/1 function recursively reads lines until an empty line is encountered (signifying the end of input) and accumulates them in a list.

You can call MultiLineInput.read_input/0 to start reading multiline input. Once the user finishes entering input (typically by entering an empty line), the function returns the list of lines entered.

Feel free to adapt this code snippet to fit your specific requirements.