public static CharComparer Create([NotNull] System.StringComparer stringComparer)
{
if (stringComparer == null)
{
throw new ArgumentNullException(nameof(stringComparer));
}
// Handle common equivalents.
if (stringComparer.Equals(System.StringComparer.InvariantCulture))
{
return(InvariantCulture);
}
if (stringComparer.Equals(System.StringComparer.InvariantCultureIgnoreCase))
{
return(InvariantCultureIgnoreCase);
}
if (stringComparer.Equals(System.StringComparer.Ordinal))
{
return(Ordinal);
}
if (stringComparer.Equals(System.StringComparer.OrdinalIgnoreCase))
{
return(OrdinalIgnoreCase);
}
// Build a comparer based on the string comparer.
return(new StringComparer(stringComparer));
}
/// <inheritdoc /> public override bool Equals(char x, char y) => _stringComparer.Equals(x.ToString(), y.ToString());
internal static bool EqualsIgnoringCase(this string value1, string value2) => DefaultComparer.Equals(value1, value2);