On 03/04/2023 12:59, Alan Mackenzie wrote:

Hello, Dmitry.

On Mon, Apr 03, 2023 at 00:21:18 +0300, Dmitry Gutov wrote:

On 02/04/2023 20:23, João Távora wrote:

So my initial idea was to tone down electric-indent-chars, at least

for the moment.  And Dmitry's idea was to make electric-indent-chars

be ambitious_only_  if electric-pair-mode is enabled (by the user).

Maybe we should bring back that idea, and it seems the least bad of the

bunch right now.

Alternatively, we only perform "electric indent" (aside from after RET)

when the parse tree does not contain errors.

That is NOT electric indentation.  The whole point about electric

indentation is for it to take effect whilst point is still on the line

being edited.  Thus, for example, you can see whether or not the line

needs breaking, or whether there's room for a short comment at the end

of the line.

Wouldn't you know whether the line needs breaking, as long as the line 

was indented correctly when you opened it with RET?

What you're proposing is something which would almost never trigger,

since a line being edited will not have a parse tree without errors (if

I've understood that properly).  If it did trigger at some point, that

would likely cause annoyance and puzzlement.

That's a fair assessment, but it's going to trigger in a lot of cases 

still: after ;, or after a paren or brace being closed.

Silly question: can't we make a mode with c++-mode's indentation (and folding etc.) and c++-ts-mode's fontification? Such a thing would also preserve compatibility with the numerous ad hoc c++-mode styles out there.