Comment by mort96

If people really wanted parsing directives, they could just say that keys starting with # and their values are parsing directives - e.g:

    {
        "#if": "parserversion > 1.5",
        "key": "somevalue",
        "#else": "",
        "key": "othervalue"
    }

Thought I also don't really see any reason to include parsing directivesin JSON.