Use IO::Prompt
( my $_prompt = <<END_OF_PROMPT ) =~ s/^\s+?\|//gm;
| You have encountered a Gru, what would you like to do?
| Do you want to:
| [1] Run away
| [2] Fight
| [3] Try to talk your way out of this
| [4] Apply salt to your leg and let him eat you
| [q] Quit
| Please choose [ 1-4,Q ]:
END_OF_PROMPT
my $_response = prompt $_prompt, -one_char,
-require =>
{ "Must be one of 1-4 or 'Q'\n$_prompt" =>
qr/[1-4q]/smix };
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