crystal single character read from stdin

stdin.cr

print "Type something: "

entered_chars = [] of Char

STDIN.raw do
  loop do
    char = STDIN.read_char

    next if char.nil?

    entered_chars << char
    print char

    # exit when user enters ^d
    break if char.ord == 4
  end
end

puts
puts "You said: #{entered_chars.map(&.to_s).join("")}"