When the trailing spaces are highlighted, it is easy for us to delete it and don't create new trailing spaces.
Zheng Vim: Add following lines in the .vimrc """"""""" Highlight ExtraWhitespace ctermfg=DarkGray ctermbg=yellow " Show trailing whitespace: :match ExtraWhitespace /\s\+$/ Emacs: Add the following lines into the .emacs (setq-default show-trailing-whitespace 1) -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot