[FEATURE REQUEST] A predicate for "sibling"

[Cletip]

Hello !

I am currently trying to do the following: only get headings that are the next actions to be taken. A concrete example: 

`

• Project
  ** TODO Task one, the next action that I want to see
  ** TODO Task two, but after the task one, not the next action`

As you can see here, the next action is the task one.

A slightly more complicated example: 

`

• Project
  ** Not next action
  *** Next action
  *** Not next action
  ** Not next action

• Project
  ** DONE Task one
  ** TODO next action
  `

I managed to make a function with "org-agenda-skip-function" which allows me to find its famous next action. But how to do it with org-ql ? Is there a possibility to "translate" this function into an org-ql query ?
I'm also thinking of creating a new predicate, "brother-up", which would return true if the heading has a heading of the same level before it

So maybe I could find the next action by taking the following headings:

• no task in done
• no descendant
• no "brother up" not done

I'm a bit lost, because I don't even know if it would work, and if I have thought about everything. I don't know in which direction to go.

Thanks in advance for your answers

[alphapapa]

Hello,

This issue tracker is intended for reporting bugs, feature requests, proposing patches, etc, not for general support questions. As well, by asking here, only I can offer answers, and only you can benefit from them. Please ask in a more appropriate, public forum, like https://old.reddit.com/r/emacs+orgmode, #emacs:matrix.org, etc. so that other users can offer help and learn as well.

[Cletip]

Thanks you for your answer.

Sorry, it's true that this is not the right place for this kind of question, I got carried away. My basic question is the following and it's in the "feature request" category (I don't know how to label a topic lol sorry) : 

Could there be a predicate for "sibling"?
It could be something like the following:

sibling (&optional query upOrDown)
returns true if the heading has a sibling (before or after the heading).
upOrDown would specify whether it should be before or after (a simple boolean)

I don't know if you see the idea and if it is possible.

[alphapapa]

Please see #105.

[Cletip]

Thanks you for your answer, I will check this.