fix: prevent child changing parent element dir

[zoli]

special nodes should change parent element direction if the parent does not contain any preceding text before the special node.
also added tests for this specific bug.

resolves #77

[zoli]

didn't have time to create GitHub workflow to run tests on each pr.

[Hashemian01]

Any updates on merging this PR @esm7 ? The #77 is getting really annoying.

[esm7]

Sorry about the holdup, I'll give top priority to do it this Sunday.

[Hashemian01]

Thanks for fixing this @zoli! It works great when there's just one kind of formatting, like bold or italics. But if I try to use two at the same time (e.g., bold text inside highlighted paragraph, italic text inside highlighted paragraph, bold text inside italic paragraph, etc) it messes things up again.

این یک تست test است
==این یک تست **test** است==
این یک تست **test** است
*این یک تست **test** است*
==این یک تست *test* است==

[Hashemian01]

(e.g., bold text inside highlighted paragraph, italic text inside highlighted paragraph, bold text inside italic paragraph, etc)

I also need to add that it doesn't matter if there are English characters inside the paragraph or not; when there are two levels of formatting, the direction will be wrong.

==این یک **تست** است==
*این یک **تست** است*
==این یک *تست* است==

[esm7]

There's no point to continue pursuing this issue, as the Obsidian devs are in advanced stages of adding native auto direction RTL to Obsidian 1.6.0.
In the next iterations, this plugin will only improve some edge cases and add some functionality like remembering direction per file and probably some RTL tweaks.
This specific issue won't occur in that version.

[Hashemian01]

I totally understand. But since obsidian is not open source and the same approach used here might be beneficial to other projects (See), it still makes sense to document the existing issues for future reference.