15:18:52beachI made great progress on FILL-PARAGRAPH (for line comments) today. Given a cursor position, I can identify all the wads that are involved in the operation, both at the top level and nested inside an expression.
15:19:42beachNext step is to rearrange the words in those comments. That's also not trivial, but I think I know what to do. The most tricky part is to leave the cursor in a reasonable place.
15:21:35beachIf the cursor was sufficiently far to the left, it should be left intact. If not, it should preserve its place in the text.