Re: Forcing tab-width to be 8 makes using Python source blocks very difficult

[Rudi C <rudiwillalwaysloveyou@gmail.com>]

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Thanks, I don't have any problems now, so we can consider this closed.

On Sat, Mar 16, 2024 at 2:32 PM Ihor Radchenko <yantar92@posteo.net> wrote:

> Rudi C <rudiwillalwaysloveyou@gmail.com> writes:
>
> > ... runs `evil-shift-right`, which
> > indents the selected region by the `evil-shift-width` amount.
> > `evil-shift-width` is set based on `tab-width`.
>
> Are you sure?
> I am looking at
> https://github.com/emacs-evil/evil/blob/master/evil-vars.el#L175
> and it appears that `evil-shift-width' has nothing to do with
> `tab-width'. It is a customization with default value of 4.
>
> Also, do note that `evil-shift-width' in python code blocks may break
> things when the code block itself is also indented. Org mode normally
> discards this common indentation and takes care about distinguishing
> (and not merging!) the tabs belonging to the code itself and the
> tabs/spaces that are used to indent the whole code block:
>
>      This whole code block is indented
>      #+begin_src python
>      def foo():
>        if True:
>          return 1;
>      #+end_src
>
> Indentation in Org mode blocks can be tricky and generic editing
> commands may not cut it. Org mode itself does the indentation using the
> code block's major mode in a separate buffer in order to keep things
> consistent.
>
> > ... I solved this specific
> > problem by overriding `evil-shift-width` using a timer in an org-mode
> hook.
> > The delay introduced by the timer was necessary, as something kept
> > overriding my settings. Perhaps the magic machinery that sets `tab-width`
> > in the source blocks can also set `evil-shift-width`. The best-case
> > scenario would be to have a list of variables that need to be set from
> > their major-mode buffer in the source blocks.
>
> Why not simply setting `evil-shift-width' to 4?
>
> >> May you please provide a detailed example where 8 spaces causes issues?
> >
> > My lists are still indenting with 2 spaces, so I am not actually seeing 8
> > spaces. I have no idea why that is, but I very much like the 2-space
> > indentation.
> >
> > ```
> > - a
> >   - b
> > ```
> >
> > I see 4 spaces in numerical lists, which again, I have no idea about:
> >
> > ```
> > 1. hi
> >    2. hi
> >       3. hi
> > ```
>
> Org mode aligns child sub-lists with parent item text. So, "-" is right
> below "a" and "2." is right below "hi". List depth is not defined by the
> absolute number of spaces/tabs.
> See https://orgmode.org/manual/Plain-Lists.html
>
> --
> Ihor Radchenko // yantar92,
> Org mode contributor,
> Learn more about Org mode at <https://orgmode.org/>.
> Support Org development at <https://liberapay.com/org-mode>,
> or support my work at <https://liberapay.com/yantar92>
>

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