Re: Escaping quotes in docstrings, Was: A simple solution to "Upcoming loss of usability ..."

[Paul Eggert]

Dmitry Gutov wrote:

> one alternative use has already been mentioned ... don't use
> the quotes in the output at all, and instead highlight the quoted expressions
> with color; and possibly a different font-face.

We can cross that bridge if we ever need to come to it.  Such a use can't be the 
default everywhere, since not every platform supports colors and faces (e.g., 
batch diagnostics).  So we'll need something with quotes anyway.  And we already 
have code that highlights the contents of quotations so that may well be good 
enough.

> C code is perfectly able to use Lisp functions.

I expect that some of the diagnostics are at a low level, and can't assume that 
Lisp functions are callable, and that we'll need to do some of this at the C 
level regardless.  Once it's done there, why bother with redoing it in Lisp?

> I hope we can agree, at least, that substitute-command-keys shouldn't perform
> the translation itself.

Whether substitute-command-keys does it directly, or via calling some other 
function, is an implementation detail and it's not clear to me yet which is the 
right way to go here.