1 files changed, 79 insertions, 0 deletions
diff --git a/MediaBrowser.Controller/Library/NameExtensions.cs b/MediaBrowser.Controller/Library/NameExtensions.cs
new file mode 100644
index 000000000..6973dce64
--- /dev/null
+++ b/MediaBrowser.Controller/Library/NameExtensions.cs
@@ -0,0 +1,79 @@
+using MediaBrowser.Common.Extensions;
+using MoreLinq;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+
+namespace MediaBrowser.Controller.Library
+{
+    public static class NameExtensions
+    {
+        public static bool AreEqual(string x, string y)
+        {
+            if (string.IsNullOrWhiteSpace(x) && string.IsNullOrWhiteSpace(y))
+            {
+                return true;
+            }
+
+            return string.Compare(x, y, CultureInfo.InvariantCulture, CompareOptions.IgnoreCase | CompareOptions.IgnoreNonSpace) == 0;
+        }
+
+        public static bool EqualsAny(IEnumerable<string> names, string x)
+        {
+            x = NormalizeForComparison(x);
+
+            return names.Any(y => string.Compare(x, y, CultureInfo.InvariantCulture, CompareOptions.IgnoreCase | CompareOptions.IgnoreNonSpace) == 0);
+        }
+
+        private static string NormalizeForComparison(string name)
+        {
+            if (name == null)
+            {
+                return string.Empty;
+            }
+
+            return name;
+            //return name.RemoveDiacritics();
+        }
+
+        private static string RemoveDiacritics(string name)
+        {
+            if (name == null)
+            {
+                return string.Empty;
+            }
+
+            //return name;
+            return name.RemoveDiacritics();
+        }
+
+        public static IEnumerable<string> DistinctNames(this IEnumerable<string> names)
+        {
+            return names.DistinctBy(RemoveDiacritics, StringComparer.OrdinalIgnoreCase);
+        }
+    }
+
+    class TextComparer : IComparer<string>, IEqualityComparer<string>
+    {
+        public int Compare(string x, string y)
+        {
+            if (string.IsNullOrWhiteSpace(x) && string.IsNullOrWhiteSpace(y))
+            {
+                return 0;
+            }
+
+            return string.Compare(x, y, CultureInfo.InvariantCulture, CompareOptions.IgnoreCase | CompareOptions.IgnoreNonSpace);
+        }
+
+        public bool Equals(string x, string y)
+        {
+            return Compare(x, y) == 0;
+        }
+
+        public int GetHashCode(string obj)
+        {
+            return (obj ?? string.Empty).GetHashCode();
+        }
+    }
+}