Hi, Has anyone else found it necessary to conditionalize the downcasing of attribute names, like what is currently done with regular tags? For example in the following bit of X3D: (with-html-output (*stream* nil :indent t) (:Shape (:Appearance (:Material :diffuseColor "0 1 0") ... ))) the diffuseColor attribute name needs to have its case preserved. Second question: the *downcase-tags-p* has to be set to nil at compile time. This is probably more of a general Lisp question and not so specific to cl-who, but what is the preferred way of setting a variable like this to a non-default value for the duration of compiling a file, similar to what one would do with a special variable at runtime with (let ((*downcase-tags-p* nil)) ...) or (let (*downcase-tags-p*) ...) ? I am hoping to find something less error-prone (and thread-unsafe) than this: ;; beginning of the file (eval-when (compile load eval) (setq *downcase-tags-p* nil)) ;; ... ;; end of the file (eval-when (compile load eval) (setq *downcase-tags-p* t)) ;; Thanks, -dave -- Dave Cooper, Head of Product Development, Genworks International dave@genworks.com, dave.genworks.com(skype) USA: 248-327-3253(o), 1-800-731-9220(toll-free) UK: +44 (0) 191 645 1699