contextual ime

[MayuraVerma]

how to create a keyboard with contextual.

example: if the "text stream" in the contains either "ai" or "oe" present, then by pressing key "b" should output "B". otherwise it should output "b"

It is not about auto-correction. I have oversimplified case. In Indic keyboards, we want to double the keys with multiple functions. Depending on the previous text present on the screen, keyboard would output differently.

How can we do it in anysoftkeyboard?