Rocket.chat.reactnative: [NEW] KaTeX Support

[jGleitz]

Rocket.Chat supports posting KaTeX, which will get rendered nicely in the conversation. For us, this is an outstanding feature.

Unfortunately, when posting KaTeX in the native app (e.g. $x$ or \[x\]), it is not rendered as KaTeX but stays as it is.

[matheusjardimb]

Hello @jGleitz, thanks for submitting issues!

This seems to be a good feature request :+1:

[markbolo2]

Any progress on this? Reading chat on the mobile is super ugly because of all the Katex formatting that is not coming over.

[rafaelks]

@markbolo2 Do you have any idea how this could be implemented?

[wreiske]

Ahh! Please add support for KaTeX on the Android mobile app!

Desktop:

iOS

Android

https://apis.reiske.tech/math

[naidu]

Does anybody monitors this space? No comments from the owners of the product.. :(

[rafaelks]

@naidu Yes, we monitor this all the time... PR are welcome for this issue! Thank you! 👍

[vaxXxa]

Is this codebase for RocketChat Experimental or basic version?

[rafaelks]

No, this is the native version from Play Store.

[blindrain]

This is still an issue with Android and Windows applications.

[edmundlaugasson]

This is still an issue with Android and Windows applications.

Not only, also GNU/Linux app is affected.

[diegolmello]

Hey, I transferred this issue to the new repo.

[raffaeler]

Is this feature working on any client? I can't make it work on any client (web, desktop and android)
TIA

[phriedrich]

@raffaeler Yes, it's working for me in the web version. (It has to be enabled in the settings under messages.)

But it's _not_ supported in the mobile app.

[raffaeler]

thank you @phriedrich. The option is enabled in Messages but I can't make it work from the web.
Could you please type here an example so that I am not misunderstanding the KaTex syntax?
Thank you

[phriedrich]

The example up in this thread here works for me with the same syntax:

But it's also possible to set the syntax from \[KaTeX Block\] to $$KaTeX Block$$:

If you can't get KaTeX working at all, this is probably more a question for Rocket.Chat itself, and not for the mobile app.

[raffaeler]

Thanks but the syntax with the square bracked does not work.
I enabled the Dollar syntax and it works.
The strange thing is that when I enable the Dollar syntax the square bracket syntax gets swallowed.

It may be a bug. I am using version 3.2.2

[KokosnussDEV]

Upvoting this for implementation