Re: line adjustment at the end of a sentence

[Stefan Monnier]

>> A really good solution would not require turning it on/off.
> It's not about requiring.  Sometimes (and perhaps in some places) you
> want to distinguish such chars, sometimes you do not.  You want to be
> able to pick those times - i.e., on demand.

"SPC vs SPC SPC" lets you eat your cake and have it too, because while
it shows the difference, your brain will happily disregard it, so noone
ever felt the need to provide a command to switch between "show the
diff" and "hide the diff".

So, yes, it's about "requiring".

> Other editors and word processors do this kind of thing all the time,
> not only wrt hard-to-detect chars but wrt other things that you
> sometimes want to see and sometimes do not: XML element boundaries and
> attributes, editor text symbols/artifacts (e.g. pilcro),
> conditionalized text, and so on.

Yes, in the general case, there's probably no way to avoid the need to
distinguish between "show markup" and "hide markup".  But some markup
(such as the SPC vs SPC SPC convention) is sufficiently lightweight that
you don't need to have those two states.


        Stefan