string-to-intは26.1からなくなったぽい
(string-to-int "555") -- error (string-to-number "555") -- 555
** Some obsolete functions, variables, and faces have been removed: *** make-variable-frame-local. Variables cannot be frame-local any more. *** From subr.el: window-dot, set-window-dot, read-input, show-buffer, eval-current-buffer, string-to-int
