Rebuilt the data file, and fixed the handling of name aliases.

UnicodeCharacterInspector/CharacterInfoViewModel.cs

@@ -104,7 +104,7 @@ namespace UnicodeCharacterInspector
 
 		public UnicodeNameAliasCollection NameAliases
 		{
-			get { return characterInfo.NameAliases; }
+			get { return character != null ? characterInfo.NameAliases : new UnicodeNameAliasCollection(); }
 		}
 
 		public string OldName

UnicodeCharacterInspector/MainWindow.xaml

@@ -53,6 +53,9 @@
 						<Setter Property="VerticalAlignment" Value="Top" />
 						<Setter Property="Margin" Value="6" />
 					</Style>
+					<Style TargetType="{x:Type ItemsControl}" BasedOn="{StaticResource ResourceKey={x:Type ItemsControl}}">
+						<Setter Property="Margin" Value="6" />
+					</Style>
 				</Grid.Resources>
 				<Grid.ColumnDefinitions>
 					<ColumnDefinition Width ="Auto" />
@@ -95,7 +98,9 @@
 				<ItemsControl Grid.Row="3" Grid.Column="1" Visibility="{Binding SelectedCharacterInfo.NameAliases.Count, Converter={StaticResource ZeroToVisibilityConverter}}" ItemsSource="{Binding SelectedCharacterInfo.NameAliases}">
 					<ItemsControl.ItemTemplate>
 						<DataTemplate>
-							<TextBlock TextWrapping="WrapWithOverflow" Text="{Binding}" />
+							<TextBlock TextWrapping="WrapWithOverflow">
+								<Run Text="{Binding Name, Mode=OneTime}" /> (<Run Text="{Binding Kind, Mode=OneTime}" />)
+							</TextBlock>
 						</DataTemplate>
 					</ItemsControl.ItemTemplate>
 				</ItemsControl>

UnicodeInformation.Builder/BinaryWriterExtensions.cs

@@ -57,11 +57,8 @@ namespace System.Unicode.Builder
 		/// <param name="nameAlias">The name alias value to write.</param>
 		public static void WriteNameAliasToFile(this BinaryWriter writer, UnicodeNameAlias nameAlias)
 		{
-			// This method will stuff two extra bits together with the byte count, provided that this one doesn't exceed 64.
-			var bytes = Encoding.UTF8.GetBytes(nameAlias.Name);
-			if (bytes.Length > 64) throw new InvalidOperationException("Did not expect UTF-8 encoded name aliases to be longer than 64 bytes.");
-			writer.WritePackedLength((byte)(nameAlias.Kind - 1), nameAlias.Name.Length);
-			writer.Write(bytes);
+			writer.Write(nameAlias.Name);
+			writer.Write((byte)nameAlias.Kind);
 		}
 
 		/// <summary>Writes a character name, packing two information bits along with the length.</summary>

UnicodeInformation/UnicodeInfo.cs

@@ -107,12 +107,7 @@ namespace System.Unicode
 
 					for (int i = 0; i < nameAliases.Length; ++i)
 					{
-						length = reader.ReadByte();
-						UnicodeNameAliasKind aliasKind = (UnicodeNameAliasKind)((length >> 6) + 1);
-						length = (length & 0x3F) + 1;
-
-						if (reader.Read(nameBuffer, 0, length) != length) throw new EndOfStreamException();
-						nameAliases[i] = new UnicodeNameAlias(Encoding.UTF8.GetString(nameBuffer, 0, length), aliasKind);
+						nameAliases[i] = new UnicodeNameAlias(reader.ReadString(), (UnicodeNameAliasKind)(reader.ReadByte()));
 					}
 				}
 			}