[nXML-mode related]Q: How was modeline-process handled in XEmacs(was Re: Is there a working nxml-mode in XEmacs?)

[Stephen J. Turnbull]

It's me FKtPp ;) writes:

 >   (setq modeline-process
 >     `(rng-validate-mode ,(rng-compute-mode-line-string))))

This code will evaluate `(rng-compute-mode-line-string)' at setq
time.  What does that evaluate to?