/usr/bin/add_classes version [unknown] calling Getopt::Std::getopts (version 1.15 [paranoid]),
running under Perl version 5.44.0.

Usage: add_classes [-OPTIONS [-MORE_OPTIONS]] [--] [PROGRAM_ARG1 ...]

The following single-character options are accepted:
	With arguments: -c
	Boolean (without arguments): -h -p

Options may be merged together.  -- stops processing of options.
Space is not required between options and their arguments.

For more details run
    perldoc -F /usr/bin/add_classes
  [Now continuing due to backward compatibility and excessive paranoia.
   See 'perldoc Getopt::Std' about $Getopt::Std::STANDARD_HELP_VERSION.]
Usage:
      add_classes -c classes.xml infile.xml

    For each glyph in the infile.xml attachment point database, find all the
    classes in classes.xml containing names that match the glyph. Ensure
    that the classes property contains a list of those classes that match.
    Print the results to stdout.

Options:
      -c classes.xml    List of classes and their contents
      -h                print manpage
      -p                Create classes for each property value
                        called property_value