private static bool EqualsOrdinalIgnoreCase(char thisChar, char otherChar)
{
// Do a fast check first before converting to lowercase characters.
return
(thisChar == otherChar ||
CaseInsensitiveComparison.ToLower(thisChar) == CaseInsensitiveComparison.ToLower(otherChar));
}
internal int CompareToOrdinalIgnoreCase(StringSlice other)
{
var thisEnd = this._span.End;
var otherEnd = other._span.End;
for (int i = this._span.Start, j = other._span.Start;
i < thisEnd && j < otherEnd;
i++, j++)
{
var diff =
CaseInsensitiveComparison.ToLower(this._underlyingString[i]) -
CaseInsensitiveComparison.ToLower(other._underlyingString[j]);
if (diff != 0)
{
return(diff);
}
}
// Choose the one that is shorter if their prefixes match so far.
return(this.Length - other.Length);
}
public override bool Equals(ReadOnlyMemory <char> x, ReadOnlyMemory <char> y) => CaseInsensitiveComparison.Equals(x.Span, y.Span);
public override int Compare(ReadOnlyMemory <char> x, ReadOnlyMemory <char> y) => CaseInsensitiveComparison.Compare(x.Span, y.Span);
