[cl-who-devel] Fwd: *downcase-tags-p* for attributes, setting *downcase-tags-p* for compile-time
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
On Tue, 14 Aug 2007 01:08:03 -0400, "Dave Cooper" clnet@genworks.com wrote:
Has anyone else found it necessary to conditionalize the downcasing of attribute names, like what is currently done with regular tags?
Yes, you're not the only one - see the new 0.11.0 release.
Second question: the *downcase-tags-p* has to be set to nil at compile time.
Yep, this is by design. You can call it a feature in the sense of optimization, but you can also call it a design flaw as CL-WHO currently doesn't export functionality to compose output at runtime. This would require a major overhaul for which I don't have enough time at the moment.
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)) ;;
I'm not aware of a better solution. Maybe the ASDF experts have an idea how this could be done in a more elegant way, but that would be outside the ANSI standard.
Cheers, Edi.
-
Dave Cooper -
Edi Weitz