this post was submitted on 01 Feb 2024
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It very much is an aspect of the format. You may deem it unimportant, but it's a feature that is missing from toml and yaml.
It's not a responsibly of the format, so, at most, it's a mere side effect. In any practical process which could result with truncated data, even if it handles data with such property, it should be wrapped in a container which includes length. At the very least, it would allow to trace the source of truncation, e.g. was the data originally truncated, or was it truncated in the process, and change the format without shooting in oneselves foot. And the generating side should always provide success flag which should be properly handled, since it may produce syntactically correct, but semantically invalid data. Such as checking exit code of process which generates json/yaml in question