usage: ocamllex [options] sourcefile
  -ml  Output code that does not use the Lexing module built-in automata interpreter
  -o  <file>  Set output file name to <file>
  -q  Do not display informational messages
  -v  Print version and exit
  -version  Print version and exit
  -vnum  Print version number and exit
  -help  Display this list of options
  --help  Display this list of options