Re: Disabling automatic reindentation of the current line after a newline

[Jean Abou Samra <jean@abou-samra.fr>]

Hi,

Thanks for replying.


Le 24/10/2022 à 04:44, Emanuel Berg a écrit :
> Emacs doesn't make mistakes, it is always 100% accurate
> according to the programming which defines it's bahvior.
>
> If there is a mistake, it's on the behalf of the programmers
> and they will be delighted to fix all such bugs.
>
> If they think the behavior is good, and you disagree, you can
> change the code or don't use it, or don't use it temporarily
> perhaps, also on your own computer where you are unrestricted
> to do whatever you want.
>
> If you describe the exact situation we can help you with
> that ...
>
>> Is this possible?
> Can you show an example what you want should happen ...



I have found myself wanting this in several different contexts.

a) When writing Scheme code, sometimes I define a custom macro
that should be indented specially. I know I could look up
how to define a custom indentation format for that macro and
use it in the local variables, but for just one call site
it's handier to just redo it manually.

b) LilyPond contains a C++ file formatted like this:


namespace Lily
{
extern Scm_module module;
typedef Module_variable<module> Variable;

extern Variable all_music_font_encodings;
extern Variable alterations_in_key;
extern Variable backend_testing;
extern Variable bar_glyph_alist;
extern Variable bar_line_calc_glyph_name_for_direction;
extern Variable base_length;


When I press RET to add an entry in that list, Emacs
inserts two spaces, according to the style it has learnt,
so I remove them ... until I remember that the moment
I insert the ending semicolon, the spaces are back.
This annoys me a bit because I removed the spaces manually,
I don't want Emacs to stand in the way.


c) At some point, the Coq mode provided by Proof General
completely removed all indentation on the previous line when
inserting a newline, at least in recent Emacs versions, but
I see that it seems to have been fixed now.


In summary, while the major mode tries to do its best,
sometimes it has a glitch or doesn't exactly do what I want,
and I'd like a handier way to correct those mistakes.

Best,
Jean