Re: [whatwg/webidl] “Unicode character” should likely say “Unicode scalar value” in intro to lexical grammar (Issue #1080)

> So the choice here is really a statement about valid Web IDL files, I guess?

Yep. It’s totally removed from any kind of observable web platform behavior. If curious, the background for why I noticed it is that I added new API surface to my parser which accepts JS string values (interpreted Web IDL source text). Previously it only read well-formed UTF-8 buffers, so USVs were a given, but now it was something I had to consider\*. At first I thought lone surrogates should probably pass through the lexer fine if appearing in in `string`, `comment`, or `other` tokens given what’s written, but then I caught the implication for USV string literal interpretation.

> \* by “had to consider,” I mean I definitely did not have to consider it. i’m the only person using the parser in question and obviously I’m not gonna pass in any unpaired surrogates. but if i don’t invent problems, who will??





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