nvda的regexp在所有大写字母之间放置空格？

So, I use NVDA, a free screen reader for the blind that many people use, and a speech synthesizer. I am building a library of modified versions of addons which it takes, and dictionaries that can contain regular expressions acceptable by python, as well as standard word replacement operation. My thing is, I do not know how to design a regular expression that will place a space between capital letters such as in ANM, which the synth says as one word rather than spelling it like it should. I do not know enough python to manually code an addon for this thing, I only use regexp for this kind of thing. I do know regular expressions basics, the general implementation, which you can find by googling "regular expressions in about 55 minutes". I want it to do something like this.So, I use NVDA, a free screen reader for the bl