/// <summary>
 /// Filters a set of localized strings and prepares them for display.
 /// </summary>
 /// <param name="unic">The string list.</param>
 /// <param name="stringIds">The string ID cache to use.</param>
 /// <param name="strings">The strings to display.</param>
 /// <param name="language">The language to display strings from.</param>
 /// <param name="filter">The filter to match strings and stringIDs against. Can be <c>null</c> to display everything.</param>
 /// <returns>The strings to print.</returns>
 public static List<DisplayString> PrepareForDisplay(MultilingualUnicodeStringList unic, StringIdCache stringIds, IEnumerable<LocalizedString> strings, GameLanguage language, string filter)
 {
     // Filter the input strings
     var display = new List<DisplayString>();
     foreach (var localizedString in strings)
     {
         var str = unic.GetString(localizedString, language);
         if (str == null)
             continue;
         var stringId = stringIds.GetString(localizedString.StringId);
         if (filter != null && !str.Contains(filter) && !stringId.Contains(filter))
             continue;
         display.Add(new DisplayString
         {
             StringId = stringId,
             String = str
         });
     }
     display.Sort((a, b) => String.Compare(a.StringId, b.StringId, StringComparison.Ordinal));
     return display;
 }