.5 cannot be a symbol, so it would make sense to add it to the grammar.

dsantiago · on Sept 7, 2012

Actually, .5 does not parse as a number in Clojure, and does parse as a symbol.

  user> .5
  CompilerException java.lang.RuntimeException: Unable to resolve symbol: .5 in this context, compiling:(NO_SOURCE_PATH:1) 
  user> (type '.5)
  clojure.lang.Symbol

alexchamberlain · on Sept 7, 2012

Interesting, it's not a symbol according to EDN.

dsantiago · on Sept 7, 2012

Oh yes, there's a few differences. For example, Clojure also has a radix notation for integers (as in 16rFF = 255) that doesn't seem to be a part of EDN. I had assumed that Clojure would cast the deciding vote in these sorts of things, but now that I think about it, maybe not.