I don't understand how this helps. Defining a subset of unicode to accept does n... | Hacker News

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		djoldman 46 days ago \| parent \| context \| favorite \| on: RFC 9839 and Bad Unicode I don't understand how this helps. Defining a subset of unicode to accept does not obviate the need to check that values conform to type definitions.

skybrian 46 days ago [–]

Yes, that's true. It's for generic, low-level parsing code that doesn't know what a username is. There will also need to be field-specific validation.

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