> Surely this is true of all markup languages. How you would represent this visually in a document?
An extra newline between the end of the inner part and the return to the outer part, which is what I do naturally. This can get unwieldy for breaking out of more than one level, but that's rare enough you can handle that with an alternative syntax like "--" alone to break out of two levels, "---" to break out of 3, etc.
Another possibility would be picking up ASCII SI/SO again. (Emacs already makes extensive use of FF.)
An extra newline between the end of the inner part and the return to the outer part, which is what I do naturally. This can get unwieldy for breaking out of more than one level, but that's rare enough you can handle that with an alternative syntax like "--" alone to break out of two levels, "---" to break out of 3, etc.
Another possibility would be picking up ASCII SI/SO again. (Emacs already makes extensive use of FF.)