;; copied from rails-lib.el (defun ik:decamelize (string) "Convert from CamelCaseString to camel_case_string." (let ((case-fold-search nil)) (downcase (replace-regexp-in-string "\\([A-Z]+\\)\\([A-Z][a-z]\\)" "\\1_\\2" (replace-regexp-in-string "\\([a-z\\d]\\)\\([A-Z]\\)" "\\1_\\2" string))))) (defun ik:camerize<->decamelize-on-region (s e) (interactive "r") (let ((buf-str (buffer-substring-no-prop