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


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PARAMETERS
  --when=when, -w (0 ~> when=2012-01-31) 
      iso8601 date work was performed 
  --after=after, -a (0 ~> after=1969-12-31) 
      limit data shown to entries *after* this iso8601 date 
  --before=before, -b (0 ~> before=2038-01-18) 
      limit data shown to entries *before* this iso8601 date 
  --noop, -n 
      perform all operations on a tmp database 
  --help, -h 
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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.
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  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