arguments and strings

Currently, concensus on arguments is that "a" "b" => "ab".  But for a
command like
        fubar "a" "b";

where fubar is a command that takes two string arguments, this is
ambiguous; this is either the same as

        fubar ("a") ("b");

which is a "legal" construct, and

        fubar "ab";

which would be an error.

We need to resolve this, either by making all strings enclosed in
string-lists, or by making strings not (automatically) concatenate.

Opinions?

-- 
                                          Tim Showalter 
tjs+(_at_)andrew(_dot_)cmu(_dot_)edu