Text preprocess / postprocess API

[KabanFriends]

What feature do you want to see added?

I would like to see Geyser extensions being able to add their own preprocessor & postprocessor for MessageTranslator#convertMessage. A preprocessor would take the original component and output another component before the message conversion happens. A postprocessor would take the string converted by Geyser and output the processed string.

Examples of what this API would allow for extensions:

• Add custom handler for translatable components
• Replace keybind components with bedrock's translation key to show the key icons
• Replace certain unicode characters in a message with another to allow server pack to display them as emojis (This is especially helpful in Japanese language where the client's available characters are extremely limited)

Are there any alternatives?

Right now there are no APIs that could achieve similar things.

[Camotoy]

This is tough especially because we can't expose Adventure's API. Is there a way instead where you could integrate the Geyser/Floodgate API into a plugin to send an alternate message depending on the user, instead?