Single-quote is not mentioned as a valid symbol character
bendlas opened this issue · comments
The language on symbols and keywords: https://github.com/edn-format/edn#symbols
doesn't mention, that ' is allowed in symbols.
Good point.
It is also worth noting that according to the Clojure reader (documented at http://clojure.org/reader), ' is allowed in Clojure symbols (and thus keywords):
Symbols begin with a non-numeric character and can contain alphanumeric characters and *, +, !, -, _, ', and ? (other characters may be allowed eventually).
I think this is an error in the edn specification.
See also https://groups.google.com/forum/#!topic/clojure-dev/b09WvRR90Zc
Clojure, EDN, JSON compared in detail here (wow!): https://github.com/wagjo/serialization-formats
Printing all symbols of the core namespace gives +' as symbol. This cannot be parsed by a parser written after the spec. Who can fix the spec?
There seems to be a similar problem with the spec not allowing the "<" and ">" characters in symbols.
I think this is a spec bug. I created #89.