Re: DWIM region

[Stefan Monnier]

> The byte compiler should warn about
> `mark-active' if you aren't allowed to use that
> ever - perhaps difficult to implement if indeed
> OK in other circumstances...?

`mark-active` is a normal variable and you're perfectly allowed to use
it (and modify it if you want).  But in order to decide whether to use
the region or not, `use-region-p` is the canonical way to test it (and
it uses `mark-active` internally).

It'd be very difficult for the byte-compiler to distinguish those uses
of `mark-active` which would be better replaced by `use-region-p`.


        Stefan