I installed XEmacs 21.4 (patch 22) on Windows XP and ran into a regexp-opt problem when loading jde-imenu. jde-imenu has: (defconst jde-imenu-valid-modifiers-regexp (concat "\\b" (regexp-opt (mapcar #'car jde-imenu-default-modifier-abbrev-alist) t) "\\b") "Regexp of valid Java modifiers used by `jde-imenu-modifier-field-validate'.") jde-imenu fails to load due to a bug in regexp-opt. In the above defconst, the mapcar form evaluates to: ("public" "protected" "private" "static" "transient" "volatile" "abstract" "final" "native" "synchronized" "strictfp") and the above regexp-opt form produces error (with backtrace): Debugger entered--Lisp error: (wrong-type-argument characterp "abstract") concat(("abstract")) (list (concat (nreverse ...))) (lambda (s) (list (concat ...)))("abstract") mapcar((lambda (s) (list (concat ...))) ("abstract" "final" "native" "private" "protected" "public" "static" "strictfp" "synchronized" "transient" "volatile")) (let* ((sgnirts ...) (xiffus ...)) (if (> ... 0) (let* ... ...) (let* ... ...))) (if (> (length prefix) 0) (let* (... ...) (concat open-group ... ... close-group)) (let* (... ...) (if ... ... ...))) (let ((prefix ...)) (if (> ... 0) (let* ... ...) (let* ... ...))) (cond ((= ... 0) "") ((= ... 1) (if ... ... ...)) ((= ... 0) (concat open-charset ... "?" close-charset)) ((and ... ...) (let ... ... ...)) (t (let ... ...))) (let* ((open-group ...) (close-group ...) (open-charset ...) (close-charset ...)) (cond (... "") (... ...) (... ...) (... ...) (t ...))) regexp-opt-group(("abstract" "final" "native" "private" "protected" "public" "static" "strictfp" "synchronized" "transient" "volatile") "\\(") (let* ((max-lisp-eval-depth ...) (max-specpdl-size ...) (completion-ignore-case nil) (completion-regexp-list nil) (words ...) (open ...) (sorted-strings ...) (re ...)) (if words (concat "\\<" re "\\>") re)) (progn (let* (... ... ... ... ... ... ... ...) (if words ... re))) (unwind-protect (progn (let* ... ...)) (store-match-data match-data)) (let ((match-data ...)) (unwind-protect (progn ...) (store-match-data match-data))) (save-match-data (let* (... ... ... ... ... ... ... ...) (if words ... re))) regexp-opt(("public" "protected" "private" "static" "transient" "volatile" "abstract" "final" "native" "synchronized" "strictfp") t) eval((regexp-opt (mapcar (function car) jde-imenu-default-modifier-abbrev-alist) t)) eval-interactive((regexp-opt (mapcar (function car) jde-imenu-default-modifier-abbrev-alist) t)) eval-last-sexp((4)) call-interactively(eval-last-sexp) Replacing regexp-opt.el with the file from XEmacs 21.4.21 fixes the problem. Steve _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://lists.xemacs.org/mailman/listinfo/xemacs-beta