Can prompt.ask be cancelled using escape?

[fiedl]

I'm asking a simple question like this:

name = prompt.ask "What is your name?", default: "John Doe"

Can I somehow have the prompt.ask question be cancelled when the user presses the ESC key and the code would resume?

I've been experimenting with the keyescape event, but so far unsuccessful.

prompt.on(:keyescape) { print "escape has been pressed."; @escape_pressed = true }
name = prompt.ask "What is your name?", default: "John Doe"
unless @escape_pressed
  # ...
end

In the above code, the keyescape event is triggered as expected while waiting for the user to answer the question. But I didn't know how to cancel the question from the event handler.

Thank you very much!

[piotrmurach]

You could raise an error:

prompt.on(:keypress) do
  raise EscapePressedError
end

Then rescue an ask call like so:

begin
  name = prompt.ask "What is your name?", default: "John Doe"
rescue EscapePressedError
  puts "bailing out..."
end

[fiedl]

Thank you for the quick reply, this works! 🎉