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From: "Sébastien Miquel" <sebastien.miquel@posteo.eu>
To: Ihor Radchenko <yantar92@posteo.net>
Cc: emacs-orgmode@gnu.org
Subject: Re: [BUG] Source block indentation does not work properly for yaml-mode [9.6.6 ( @ /home/user/.emacs.d/elpa/org-9.6.6/)]
Date: Mon,  3 Jul 2023 12:49:17 +0000	[thread overview]
Message-ID: <8d6dd95e-5bce-44c3-638a-52351b69cc66@posteo.eu> (raw)
In-Reply-To: <874jml8ggm.fsf@localhost>


Ihor Radchenko writes:
>> What happens is: in the org buffer, the line is not empty, because it
>> has the org indentation (which was possibly just added by
>> org-indent-line), but in the edit buffer, the line is empty, because
>> the common org indentation was removed. In that case, we want to add
>> back the org indentation.
>
> May you please provide an example when it is necessary?
> `org-indent-line' will run `org-babel-do-key-sequence-in-edit-buffer', so
> it should still use `org-src--contents-for-write-back' and will not
> modify the org buffer text directly.

You're at the end of a line, you press =org-return-and-indent=.
  1. It adds a newline character.
  2. =org-indent-line= adds the org indentation, _before_ calling
     =org-babel-do-key-sequence-in-edit-buffer=
  3. The native edit call removes the common indentation, before
     calling tab in the native buffer.
  4. Calling tab in the native buffer possibly does nothing.
  5. =org-src--contents-for-write-back= sees the current line is empty,
     but it should indent it (with org indentation) nonetheless.


>> --- a/lisp/org-macs.el
>> +++ b/lisp/org-macs.el
>> @@ -483,9 +483,12 @@ line.  Return nil if it fails."
>>           (when skip-fl (forward-line))
>>   	(while (not (eobp))
>>   	  (let ((ind (progn (skip-chars-forward " \t") (current-column))))
>> -	    (cond ((eolp) (delete-region (line-beginning-position) (point)))
>> -		  ((< ind n) (throw :exit nil))
>> -		  (t (indent-line-to (- ind n))))
>> +	    (cond ((< ind n)
>> +                   (if (eolp) (delete-region (line-beginning-position) (point))
>> +                     (throw :exit nil)))
>
> This function is actually confusing both before and after the change.
> According to the docstring:
>
>      When optional argument N is a positive integer, remove exactly
>      that much characters from indentation, if possible.
>
> But the function can actually remove less than N characters.
>
> Before your change, all the blank non-empty lines were unconditionally
> removed. After your change, the first such line is removed and the
> function returns nil without continuing.

I don't understand. With this change, the function only stops if it
finds a non blank line with less than n indentation (same as before).
When a blank line with less than n indentation is found, it is emptied
(same as before), and execution continues.

>> * lisp/org-macs.el (org-do-remove-indentation): Preserve
>> indentation (spaces vs tabs) past the common indentation to remove.
>> Do not empty blank lines.
>
> Since not removing blank lines is intentional after the change, why
> doing it on a single line that is indented less than N?

Are you advocating for computing N using blank lines as well ?

  1. It isn't consistent with the previous behaviour.
  2. If I mistakenly add a space to an empty line in a src block, an
     edit-special round trip will add indentation to every line.

Is there any benefit ?

-- 
Sébastien Miquel


  reply	other threads:[~2023-07-03 12:50 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-11 22:33 [BUG] Source block indentation does not work properly for yaml-mode [9.6.6 ( @ /home/user/.emacs.d/elpa/org-9.6.6/)] wolf
2023-06-14 12:16 ` Ihor Radchenko
2023-06-17 19:11   ` Sébastien Miquel
2023-06-18 11:16     ` Ihor Radchenko
2023-06-19  8:43       ` Sébastien Miquel
2023-06-19 11:05         ` Ihor Radchenko
2023-06-19 15:32           ` Sébastien Miquel
2023-06-20 10:02             ` Ihor Radchenko
2023-06-21  5:46               ` Sébastien Miquel
2023-06-25 10:46               ` Ihor Radchenko
2023-06-26 11:14               ` Sébastien Miquel
2023-06-26 11:45                 ` Sébastien Miquel
2023-06-26 11:52                 ` Ihor Radchenko
2023-06-26 12:15                   ` Sébastien Miquel
2023-06-26 12:44                     ` Ihor Radchenko
2023-06-27  8:54                       ` Sébastien Miquel
2023-06-28  9:21                         ` Ihor Radchenko
2023-06-29 15:54                           ` Sébastien Miquel
2023-06-30 11:43                             ` Ihor Radchenko
2023-06-30 20:27                               ` Sébastien Miquel
2023-07-01 11:07                                 ` Ihor Radchenko
2023-07-01 17:17                                   ` Sébastien Miquel
2023-07-03  9:58                                     ` Ihor Radchenko
2023-07-03 12:49                                       ` Sébastien Miquel [this message]
2023-07-03 13:05                                         ` Ihor Radchenko
2023-07-03 13:48                                           ` Sébastien Miquel
2023-07-04 10:41                                             ` Ihor Radchenko
2023-07-06 11:01                                               ` Sébastien Miquel
2023-07-07  9:26                                                 ` Ihor Radchenko
2023-07-07  9:54                                                   ` Ihor Radchenko
2023-07-07 13:21                                                     ` Sébastien Miquel
2023-07-08  8:44                                                       ` Ihor Radchenko
2023-07-09 11:10                                                         ` Sébastien Miquel
2023-07-10  8:22                                                           ` Ihor Radchenko
2023-07-07  9:31                                                 ` [BUG] org-list-struct-apply-struct overrides src block indentation (was: [BUG] Source block indentation does not work properly for yaml-mode [9.6.6 ( @ /home/user/.emacs.d/elpa/org-9.6.6/)]) Ihor Radchenko
2023-07-07 13:43                                                   ` Sébastien Miquel
2023-07-08  9:06                                                     ` Ihor Radchenko

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