ecloji

So it appears that most Unicode characters can be used in Clojure symbols... The sky is the limit.

Samples

=> (def 🌀 interleave)
#'user/🌀

=> (🌀 [1 2 3] ["a" "b" "c"])
(1 "a" 2 "b" 3 "c")

=> (defrecord 👤 [🏠 🏫 🏢 📞 📱])
user.👤

=> (map->👤 {:🏠 "123 Washington Ave." :🏫 "UofM Twin Cities" :🏢 "CoCo Minneapolis" :📞 "867-5309" :📱 "555-5555"})
#user.👤{:🏠 "123 Washington Ave.", :🏫 "UofM Twin Cities", :🏢 "CoCo Minneapolis", :📞 "867-5309", :📱 "555-5555"}

=> (type 👤)
java.lang.Class

=> (.getName 👤)
"user.👤"

Also of Interest

Unicode has many different groups of "digit" (base 10) glyphs. Java's Character class recognizes many of these as digits:

assertTrue( Character.isDigit('၅') );

Additionally, the Number classes appear to be able to parse them:

assertEquals( 1111, Long.valueOf("١٢٣") );

Even more fun is that Java doesn't even care if they are all from the same group of digits:

assertEquals( 12121212, Long.valueOf("١٢১২၁၂12") );