Need reference to good ABNF for \uXXXX syntax

Markus Scherer at
Thu Apr 15 00:09:04 CDT 2021

On Wed, Apr 14, 2021 at 3:55 PM Doug Ewell via Unicode <unicode at>

> (My contribution was to define non-surrogate, high-surrogate, and
> low-surrogate separately instead of making this one behemoth rule.)


I personally like to use "lead surrogate" and "trail surrogate" because I
find "high" vs. "low" confusing.

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