The problem with talking about 'cores', is I still have to parse and handle the entire language if I want to claim to support YAML. I've used JSON is some cons

The problem with talking about 'cores', is I still have to parse and handle the entire language if I want to claim to support YAML. I've used JSON is some constrained places, I can't imagine writing my own YAML parser, or hacking an existing one into a constrained place (no memory allocation for example).