My mistake then. You can still use car, cdr, cadr etc. to accomplish more or less the same thing as XPath. S-expressions are a completely valid serialization fo

My mistake then. You can still use car, cdr, cadr etc. to accomplish more or less the same thing as XPath. S-expressions are a completely valid serialization format. You can't easily manipulate JSON or YAML data while preserving formatting and comments with any library I've used (though it is possible), that doesn't mean JSON and YAML are invalid.