var opt_fragment = new OptionBool("Omit document header and footer", "-f", "--fragment")
var opt_first_line = new OptionInt("Start the source file at this line (default: 1)", 0, "--first-line")
var opt_last_line = new OptionInt("End the source file at this line (default: to the end)", 0, "--last-line")
var opt_fragment = new OptionBool("Omit document header and footer", "-f", "--fragment")
var opt_first_line = new OptionInt("Start the source file at this line (default: 1)", 0, "--first-line")
var opt_last_line = new OptionInt("End the source file at this line (default: to the end)", 0, "--last-line")