Dear Sir, I was trying to highlight (with colours) some keywords in my derived mode called "runin-mode". Following is my .emacs file. ***** (define-derived-mode runin-mode text-mode "runin") (setq auto-mode-alist (cons '("\\.runin$" .runin-mode) auto-mode-alist)) (defvar runin-font-lock-keywords (eval-when-compile (list '("\\<\\(go\\|spawn\\)\\>[ \t]*\\(\\sw+\\)?" (1 font-lock-keyword-face) (2 font-lock-function-name-facenil t)) (concat "\\<\\ (" "comment\\|cmt\\|run\\|end\\|clo\\|cls" "\\)\\>") But I am unable to do it. Even xemacs is not recognising the new derived mode "runin-mode". Could you please help me out. Regards Phani ==== Off: 040 - 23112296 (Direct) 040 - 23110357 Ext:252 Res: 040 - 27061857