GlobalizationExtensions.cs

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namespace System.Globalization;
 
public static class GlobalizationExtensions
{
    public static StringComparer GetStringComparer(this CompareInfo compareInfo, CompareOptions options)
    {
        if (compareInfo == null)
        {
            throw new ArgumentNullException("compareInfo");
        }
        return options switch
        {
            CompareOptions.Ordinal => StringComparer.Ordinal, 
            CompareOptions.OrdinalIgnoreCase => StringComparer.OrdinalIgnoreCase, 
            _ => new CultureAwareComparer(compareInfo, options), 
        };
    }
}