Hi, I realized `font-lock-add-keywords' and `font-lock-remove-keywords' don't work properly with compiled font-lock keywords. Now those function definitions are the same as the ones in Emacs 22. However, Emacs uses the `(t KEYWORDS COMPILED...)' form for compiled font-lock keywords while XEmacs uses the `(t COMPILED...)' form. Because of this, now `font-lock-add-keywords' always removes compiled keywords except the first one as follows: --8<---------------cut here---------------start------------->8--- (let ((default-major-mode 'fundamental-mode)) (with-temp-buffer (let ((font-lock-keywords '(t (x) (y))) font-lock-auto-fontify font-lock-mode-enable-list) (font-lock-add-keywords nil '((z))) font-lock-keywords))) => (t (z (0 nil)) (x (0 font-lock-keyword-face))) --8<---------------cut here---------------end--------------->8--- ;; Note that the y keyword is missing in the result. The attached patch was briefly tested with only the case where the first argument MODE is not given. --8<---------------cut here---------------start------------->8--- --- font-lock.el~ 2006-11-05 22:08:12 +0000 +++ font-lock.el 2007-02-08 04:38:50 +0000 ＠＠ -954,7 +954,7 ＠＠ (let ((was-compiled (eq (car font-lock-keywords) t))) ;; Bring back the user-level (uncompiled) keywords. (if was-compiled - (setq font-lock-keywords (cadr font-lock-keywords))) + (setq font-lock-keywords (cdr font-lock-keywords))) ;; Now modify or replace them. (if (eq how 'set) (setq font-lock-keywords keywords) ＠＠ -1064,13 +1064,14 ＠＠ (let ((was-compiled (eq (car font-lock-keywords) t))) ;; Bring back the user-level (uncompiled) keywords. (if was-compiled - (setq font-lock-keywords (cadr font-lock-keywords))) + (setq font-lock-keywords (cdr font-lock-keywords))) ;; Edit them. (setq font-lock-keywords (copy-sequence font-lock-keywords)) (dolist (keyword keywords) (setq font-lock-keywords - (delete keyword font-lock-keywords))) + (delete (font-lock-compile-keyword keyword) + (delete keyword font-lock-keywords)))) ;; If the keywords were compiled before, compile them again. (if was-compiled --8<---------------cut here---------------end--------------->8--- Regards, _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://calypso.tux.org/cgi-bin/mailman/listinfo/xemacs-beta