module Byebug::ParseFunctions

def get_int(str, cmd, min=nil, max=nil, default=1)

value has no bound.
min and max. If either min or max is nil, that
Parse 'str' of command 'cmd' as an integer between 
def get_int(str, cmd, min=nil, max=nil, default=1)
  return default unless str
  begin
    int = Integer(str)
    if min and int < min
      print "\"#{cmd}\" argument \"#{str}\" needs to be at least #{min}.\n"
      return nil
    elsif max and int > max
      print "\"#{cmd}\" argument \"#{str}\" needs to be at most #{max}.\n"
      return nil
    end
    return int
  rescue
    print "\"#{cmd}\" argument \"#{str}\" needs to be a number.\n"
    return nil
  end
end