RE: let HISTORY arg to read functions be a list of history variables

[Drew Adams]

> > Then, for example, you could write this and let users use a regexp from
> > either history:
> >
> > (read-string "Regexp: " nil '(hi-lock-regexp-history regexp-history))
>
> A very easy way to achieve this is following:
>
> (let* ((history-add-new-input nil)
>        (history (append hi-lock-regexp-history regexp-history))
>        (str (read-string "Prompt: " nil 'history)))
>   (add-to-history 'hi-lock-regexp-history str))

Sure. But that's hardly as readable. My proposal was to build that into the
read functions (but without the extraneous addition of the input to the
temporary history variable). Anyway, Richard has nixed the idea.