To quote or not to quote, that is the question

[David Van Horn <dvanhorn@xxxxxxxxxxxxxxx>]

It is not possible to define a correct implementation of `quote' which 
produces random-access pairs as a library form, so I could not provide a 
portable reference implementation if this feature was added.  On the 
other hand, it seems useful to have such a form.  Which do people 
prefer: portability of the reference implementation or utility of the 
specification?  They seem to be at odds in this case.

David