// Copyright (c) Dr. Dirk Lellinger. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SlobViewer.Common
{
  /// <summary>
  /// An <see cref="IComparer{System.Globalization.SortKey}"/> that uses <see cref="System.Globalization.SortKey"/> instances
  /// for sorting of Unicode strings.
  /// </summary>
  /// <seealso cref="System.Collections.Generic.IComparer{System.Globalization.SortKey}" />
  class UnicodeStringSorter : IComparer<SortKey>
  {
    /// <summary>
    /// Compares two objects and returns a value indicating whether one is less than, equal to, or greater than the other.
    /// </summary>
    /// <param name="x">The first object to compare.</param>
    /// <param name="y">The second object to compare.</param>
    /// <returns>
    /// A signed integer that indicates the relative values of <paramref name="x" /> and <paramref name="y" />, as shown in the following table.Value Meaning Less than zero
    /// <paramref name="x" /> is less than <paramref name="y" />.Zero
    /// <paramref name="x" /> equals <paramref name="y" />.Greater than zero
    /// <paramref name="x" /> is greater than <paramref name="y" />.
    /// </returns>
    public int Compare(SortKey x, SortKey y)
    {
      return SortKey.Compare(x, y);
    }
  }
}