Re: a note on notations

[Alan Watson <alan@oldp.astro.wisc.edu>]

I have though of something which goes against both $ and %.  In
practice, <>{foo} is loosely related to `{foo}, so one should be able
to replace it with <>foo.  This cannot be the case for either $ or %
as $foo and %foo already have essential meanings.  There isn't much
left on the keyboard. 

Mind you, I think `foo is an ugly short cut, and I'd be very happy to 
see it dropped from es (and ``, for that matter).

While we're messing about with es' tokens, is there anyone else who
finds $&foo both ugly and visually confusing and would rather have it
replaced with %%foo (for `doubly primitive')?  Does applying a
primitive really have enything to do with `lookup' or `evaluation'?