// Copyright (c) Six Labors.
// Licensed under the Six Labors Split License.

using System;

namespace SixLabors.Fonts.Unicode {
  /// <summary>
  /// Binary Unicode emoji properties from UTS #51.
  /// </summary>
  [Flags]
  public enum EmojiProperties : byte
  {
      /// <summary>
      /// No emoji properties.
      /// </summary>
      None = 0,

      /// <summary>
      /// The scalar has the Emoji property.
      /// </summary>
      Emoji = 1 << 0,

      /// <summary>
      /// The scalar defaults to emoji presentation.
      /// </summary>
      EmojiPresentation = 1 << 1,

      /// <summary>
      /// The scalar is an emoji modifier.
      /// </summary>
      EmojiModifier = 1 << 2,

      /// <summary>
      /// The scalar can be followed by an emoji modifier.
      /// </summary>
      EmojiModifierBase = 1 << 3,

      /// <summary>
      /// The scalar is used as a component in emoji sequences.
      /// </summary>
      EmojiComponent = 1 << 4,

      /// <summary>
      /// The scalar can be followed by U+FE0E to request text presentation.
      /// </summary>
      TextPresentationSequenceBase = 1 << 5,

      /// <summary>
      /// The scalar can be followed by U+FE0F to request emoji presentation.
      /// </summary>
      EmojiPresentationSequenceBase = 1 << 6,

      /// <summary>
      /// The scalar can start an emoji keycap sequence.
      /// </summary>
      EmojiKeycapSequenceBase = 1 << 7
  }
}