Choose prefix character to replace @

[anatoly-scherbakov]

As an architect of a YAML-LD aware system and a developer, I am a bit uncomfortable about having my users write JSON-LD @-keywords and have to quote them because that would mean additional effort. I would rather prefer some other prefix character from ASCII character set.

Choice of prefix characters

@id	Notes	Resolution
@id	Is reserved.	x
`id	Is reserved.	x
~id	Works
!id	Used for tags	x
#id	Used for comments	x
$id	Works	x
%id	Used for directives	x
^id	Works
&id	Used for anchors	x
*id	Used for aliases	x
-id	Works, but is confusable with lists: - id	x
+id	Works
_id	Works but is confusable with blank nodes (#57)	x

Also, _ in Python means private or internal things so I am subconsciously against that :)

I suggest using $ for the Convenience Context. This character also is good for JS: something.$type is workable in that language.

The users however may do whatever they want. For instance, users might want something like this:

=: 🏠:cat
∊: 🐱
🏷️:
  🇺🇸: Ray

I won't stop them. Our $ is really just a way to trigger everyone's imagination.

[VladimirAlexiev]

A good analysis what chars are suitable for #51

[gkellogg]

Discussed in the TPAC F2F and resolved to close as won't fix.