D.7 Tips on Writing Comments We recommend these conventions for comments: ‘;’ Comments that start with a single semicolon, ‘;’, should all be aligned to the same column on the right of the source code. Such comments usually explain how the code on that line does its job. For example: (setq base-version-list ; There was a base (assoc (substring fn 0 start-vn) ; version to which file-version-assoc-l