[niftich]

JSON is in fact defined in (at least) six different places, as described in the piece 'Parsing JSON is a Minefield' [1] (HN: [2]).

The problem is perhaps not as egregious as with "CSV" -- which is more of a "technique" rather than a format, despite after 30 years of customary usage, someone retroactively having written a spec; but it does manifest in various edge cases like we're debating.

[1] http://seriot.ch/parsing_json.php [2] https://news.ycombinator.com/item?id=12796556