Changes

When working with delimited arguments, spaces and lineendings can interfere. The next set of macros uses TeX' s internal scanner for grabbing everything between arguments. Forgive me the funny names.

The macros above insure that the resulting call always has the correct number of bracket pairs, even if the user did not supply all of the options. In this case, a number of trailing bracket pairs are empty. A set of related <code>\if</code> booleans is initialized to give you access to the number of user -supplied parameters.