I'm probably going to get a few down votes for this but I think you are approaching this from the wrong angle.
This line got me:
people have to go in and manually format code for people that are somehow unable to figure this out
IMO that standpoint is kind of arrogant. I find this a lot in software design where programmers and designers get annoyed with users who can't figure out how to use the software properly, when the problem isn't the user but the software itself - or the UI at least.
The root cause of this problem isn't the user but the fact that it isn't obvious to them that they can do this.
How about a change in UI to make this more obvious? Surely this will be:
- more obvious to new users exactly what they need to do
- easier for you to build rather than writing complex algorithms to detect code logic of a multitude of languages
Example:
