The following RE doesn't match with re=2 where it matches with re=1: ^\(.\)\(.*\)\n\1\@!
Intention: Find all lines whose successor lines start with a different letter. -- -- You received this message from the "vim_dev" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to vim_dev+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.