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[NFC][In Both Senses] Use _NormData type instead of performing a lookup directly

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Karl
2023-10-15 19:36:10 +02:00
committed by GitHub
parent b257a02e69
commit e9f11d70a6
1 changed files with 2 additions and 11 deletions
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13
stdlib/public/core/StringNormalization.swift
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@@ -27,17 +27,8 @@ extension Unicode.Scalar {
internal var _isNFCStarter: Bool {
// Fast path: All scalars up to U+300 are NFC_QC and have boundaries
// before them.
if value < 0x300 {
return true
}
// Any scalar who has CCC of 0 has a normalization boundary before it AND
// any scalar who is also NFC_QC is considered an NFC starter.
let normData = _swift_stdlib_getNormData(value)
let ccc = normData >> 3
let isNFCQC = normData & 0x6 == 0
return ccc == 0 && isNFCQC
let normData = Unicode._NormData(self, fastUpperbound: 0x300)
return normData.ccc == 0 && normData.isNFCQC
}
}