varible list → string ?

anonymous-gist.el

(dolist (mode '(magit-log-edit-mode
                                    log-edit-mode
                                    org-mode
                                    text-mode
                                    haml-mode
                                    sass-mode
                                    yaml-mode
                                    haskell-mode 
                                    html-mode
                                    nxml-mode
                                    sh-mode
                                    smarty-mode
                                    clojure-mode
                                    lisp-mode
                                    textile-mode
                                    markdown-mode
                                    js2-mode
                                    css-mode
                                    less-css-mode
                                    matlab-mode
                                    enh-ruby-mode))
                      ;; Learn emacs list to string so that you can add (setup-expecting mode) before add to list
                      (setup-expecting mode
                        (add-to-list 'ac-modes mode))