That really only applies to `define-macro` style macros. You can have syntax-case style macros if the language can disambiguate reading and parsing, which a lot of them have trouble with, and why they don't support them.
sweet.js figured out how to do that in javascript, so we have full syntax-case macros just as easily.
This involves a longer discussion, and I'm not sure what Tim is thinking along those lines. Suffice to say, Clojure's macros are always going to be the best, but I have pretty high hopes that you can get 95% of the way with sweet.js. :)
Yes indeed. Sweet.js already uses syntax objects internally so the groundwork is there for syntax-case. We "just" need to implement and surface the API :)
sweet.js figured out how to do that in javascript, so we have full syntax-case macros just as easily.