Re: better `up-list' for emacs-lisp, fundamental modes

[Richard Stallman]

         (concat "hello (" var ") there")
                          ^
       with your suggestion of ignoring " (and hence in text-mode), in the above
       scenario, you'd jump to the paren inside the string, which is wrong.

It is feasible to handle these cases better if you parse forward
instead of backward.  Doing that efficiently is a fair amount of work.

We can't do it reliably based on font lock, because (1) font lock
is not reliable enough and (2) it is not always enabled.
However, it could be that the existing syntax parsing features
are now efficient enough to do it.