I just stumbled over the function session-yank-string in session.el°, which XEmacs 21.4¹ evals fine, and so does GNU Emacs 24, while XEmacs 21.5 beta³ fails with "Invalid read syntax: #<buffer "session.el">": (defun session-yank-string (string half-len-str callback active) "Return menu item STRING with callback CALLBACK. If ACTIVE is non-nil, the item is active. HALF-LEN-STR is the length of the two parts of a abbreviated menu item name." (let ((beg (or (and session-compact-yank-gap-regexp (string-match "\\`[ \t\n]+" string) (match-end 0)) 0)) (end (or (and session-compact-yank-gap-regexp (string-match "[ \t\n]+\\'" string)) (length string)))) (vector (if (> (- end beg) session-edit-menu-max-string) (let ((gap (and session-compact-yank-gap-regexp (string-match session-compact-yank-gap-regexp string (- end half-len-str)) (match-end 0)))) (if (and gap (< gap (- end 3))) (setq half-len-str (- (+ half-len-str half-len-str gap) end)) (setq gap (- end half-len-str))) (concat (session-subst-char-in-string ?\t ?\ (substring string beg (+ beg half-len-str)) t) " ... " (session-subst-char-in-string ?\t ?\ (substring string gap end) t))) (session-subst-char-in-string ?\t ?\ (substring string beg end) t)) callback active))) If I remove the linefeed in the fourth-last line (so it does not end with "...string ?\t ?\") XEmacs 21.5 beta evals the expression fine. I wonder if this is this a bug in the elisp code or in XEmacs 21.5 beta? Best regards, Adam ° From the emacs-goodies-el package in Debian unstable. ¹ XEmacs 21.4 (patch 22) "Instant Classic" [Lucid] (x86_64-linux-gnu, Mule) of Tue Jul 27 2010 on coredump ² GNU Emacs 24.0.50.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.3) of 2011-03-23 on cigue, modified by Debian ³ XEmacs 21.5 (beta29) "garbanzo" 3889ef128488+ [Lucid] (x86_64-pc-linux, Mule) of Sun Mar 27 2011 on topper -- "Ge mig en vinterdrog, ge mig allt du har Adam Sjøgren Kom nu jag är kroniskt låg, bara mörkret hörs" asjo(a)koldfront.dk _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://lists.xemacs.org/mailman/listinfo/xemacs-beta