Treetop Parsing Expression Grammar (PEG) Comand Line Compiler
Usage: tt [options] grammar_file[.treetop|.tt] ...

Examples:
  tt foo.tt               # 1 grammar -> 1 parser source
  tt foo bar.treetop      # 2 grammars -> 2 separate parsers
  tt -o alt_name.rb foo   # alternately named output file


NOTE: while treetop grammar files *must* have one of the following
filename extensions, the extension name is not required when calling
the compiler with grammar file names.

  Valid extensions: .treetop, .tt


Options:
    -o, --output FILENAME            Write parser source to FILENAME
    -f, --force                      Overwrite existing output file(s)
    -v, --version                    Show Treetop version
    -h, --help                       Show this help message