This sounds like DJB's Netstring [1]. "hello world!" encoded as "12:hello world!... | Hacker News

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hawski on March 25, 2017 | parent | context | favorite | on: APFS does not normalize Unicode filenames

This sounds like DJB's Netstring [1].

"hello world!" encoded as "12:hello world!,"

An empty string as "0:,"

[1] https://en.wikipedia.org/wiki/Netstring

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