| From: Anton van Straaten (anton at appsolutions.com) Date: Tue Dec 6 11:51:15 EST 2005 |
|
Dave Gurnell wrote:
>> (define-syntax make-tag
>> (syntax-rules ()
>> [(make-tag tag-class tag-attributes tag-body)
>> (new tag-class ,@(tag-attributes) [body tag-body])]))
The unquote-splicing operator (,@) isn't meaningful in a syntax-rules
macro. You need to use pattern matching, e.g.:
(define-syntax make-tag
(syntax-rules ()
[(make-tag tag-class (tag-attribute ...) tag-body)
(new tag-class tag-attribute ... [body tag-body])]))
Anton
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