ReadFirstRuneFromUtf16Buffer()

static int System.Text.Rune.ReadFirstRuneFromUtf16Buffer ( ReadOnlySpan< char > input )

inlinestaticpackage

Definition at line 432 of file Rune.cs.

    {
        if (input.IsEmpty)
        {
            return -1;
        }
        uint num = input[0];
        if (UnicodeUtility.IsSurrogateCodePoint(num))
        {
            if (!UnicodeUtility.IsHighSurrogateCodePoint(num))
            {
                return -1;
            }
            if (input.Length <= 1)
            {
                return -1;
            }
            uint num2 = input[1];
            if (!UnicodeUtility.IsLowSurrogateCodePoint(num2))
            {
                return -1;
            }
            num = UnicodeUtility.GetScalarFromUtf16SurrogatePair(num, num2);
        }
        return (int)num;
    }

References System.Text.UnicodeUtility.GetScalarFromUtf16SurrogatePair(), System.input, System.Text.UnicodeUtility.IsHighSurrogateCodePoint(), System.Text.UnicodeUtility.IsLowSurrogateCodePoint(), and System.Text.UnicodeUtility.IsSurrogateCodePoint().

Referenced by System.Text.SpanRuneEnumerator.MoveNext().