Getopt::Tabular is a Perl 5 module for table-driven argument parsing, vaguely
inspired by John Ousterhout's Tk_ParseArgv. All you really need to do to use
the package is set up a table describing all your command-line options, and
call &GetOptions with three arguments: a reference to your option table, a
reference to @ARGV (or something like it), and an optional third array
reference (say, to @newARGV). &GetOptions will process all arguments in @ARGV,
and copy any leftover arguments (i.e. those that are not options or arguments
to some option) to the @newARGV array. (If the @newARGV argument is not
supplied, GetOptions will replace @ARGV with the stripped-down argument list.)
If there are any invalid options, GetOptions will print an error message and
return 0.