Conversation
sayrer@mastodon.social

sayrer

0 is a valid JSON document.

JSON.parse("0")
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timbray@cosocial.ca

Tim Bray 🇨🇦

Reply to @sayrer@mastodon.social

@sayrer AFAIK the term "JSON document" has no official definition. However, the byte sequence 0x3,0x0 is a conforming JSON text.

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andy

Andy Newton

Reply to @timbray@cosocial.ca
@timbray @sayrer where do multi-document formats such as CBOR, YAML and JSONL (json lines) fall in this?
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sayrer@mastodon.social

sayrer

Reply to @andy

@andy @timbray there is a lament by TBL himself that two XML documents concatenated are not an XML document. But I think it's OK. If you follow RFC 9839, you can put those control characters to good use, because they are clearly not part of the message. https://datatracker.ietf.org/doc/rfc9839/

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timbray@cosocial.ca

Tim Bray 🇨🇦

Reply to @andy

@andy @sayrer Yeah, a JSON text is a single JSON "value" and an XML document is a single "element". In production doesn't seem to be a big problem. I mean, RSS isn't the only XML format that's basically a list of whatever. You can also argue that having an unambiguous end-of-list marker adds robustness.

Having said that, I use JLines all the time, particularly for benchmarking.

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