13 Comment Handling ******************* By default, comment lines get indented like Ada code. There are a few additional functions to handle comments: ‘M-;’ Start a comment in default column. ‘M-j’ Continue comment on next line. ‘C-c ;’ Comment the selected region (add ‘--’ at the beginning of lines). ‘C-c :’ Uncomment the selected region ‘M-q’ autofill the current comment.