[Clops-users] AllOptions and other ways of defining option groups

[Fintan F. <fi...@gm...>]

I modified the option store generation template so we now have an
OptionGroup named "AllOptions". This was easy to do, but when I went to see
in which .clo files I could use it I realised that it wasn't sufficient. For
most interfaces there is often the need to have a group that includes most,
but not all, of the options.

I'd like to propose that we create a way of easily defining such groups. My
initial design would be allow subtracting options (or option groups) from
the set, something like:

OptionalOptions:   AllOptions -CompulsoryOptions;

Or for svn,

Options:   AllOptions -Commands;

Where option or option group names prefixed with a '-' means that they
should be removed from the set.

This obviously creates some complication in terms of how we expand an option
group to determine exactly what options are in it, but I think the effort
would be worth it. I think allowing definitions like the above will help to
keep the groupings succinct.

Comments/suggestions?

-F