Yes, my version is a bit long-winded. I think it’s clearer than the old version, though; in a strict sense the old version was incorrect, too, because every string that doesn’t use regexp special characters is a regexp. 2008-01-07 Aidan Kehoe <kehoea(a)parhasard.net&gt; * regexp-opt.el (regexp-opt): Clarify the treatment of regexp special characters in STRINGS. XEmacs Packages source patch: Diff command: cvs -q diff -u Files affected: xemacs-packages/xemacs-base/regexp-opt.el =================================================================== RCS Index: xemacs-packages/xemacs-base/regexp-opt.el =================================================================== RCS file: /pack/xemacscvs/XEmacs/packages/xemacs-packages/xemacs-base/regexp-opt.el,v retrieving revision 1.3 diff -u -r1.3 regexp-opt.el --- xemacs-packages/xemacs-base/regexp-opt.el 2003/10/29 16:31:46 1.3 +++ xemacs-packages/xemacs-base/regexp-opt.el 2008/01/07 12:27:44 ＠＠ -94,8 +94,12 ＠＠ ;;;###autoload (defun regexp-opt (strings &optional paren) "Return a regexp to match a string in STRINGS. -Each string should be unique in STRINGS and should not contain any regexps, -quoted or not. If optional PAREN is non-nil, ensure that the returned regexp +Each string should be unique in STRINGS. Regexp special characters in the +elements of STRINGS will not be treated as special characters; that is to +say, `regexp-opt' will call `regexp-quote' on the elements of STRINGS before +constructing the regexp. + +If optional PAREN is non-nil, ensure that the returned regexp is enclosed by at least one regexp grouping construct. The returned regexp is typically more efficient than the equivalent regexp: -- ¿Dónde estará ahora mi sobrino Yoghurtu Nghé, que tuvo que huir precipitadamente de la aldea por culpa de la escasez de rinocerontes? _______________________________________________ XEmacs-Patches mailing list XEmacs-Patches(a)xemacs.org http://calypso.tux.org/cgi-bin/mailman/listinfo/xemacs-patches