I couldn't find any in the docs or the KB and there wasn't any mentioned in this forum yet.
Does one exist? Where could I get it?
Did you mean the text scripting functions? There is a whole section dedicated to them in the AGS manual Just read the "Text Script Functions" section of it.
Moreover this is the "hints and Tips" section for games. this thread is more suitable to be in the beginner Tech forum. I think the mods would soon move it.