Added IMessage.Emojis

src/Discord.Net.Rest/Entities/Messages/MessageHelper.cs

@@ -1,11 +1,18 @@
 using Discord.API.Rest;
 using System;
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.Globalization;
+using System.Linq;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 namespace Discord.Rest
 {
     internal static class MessageHelper
     {
+        private static readonly Regex _emojiRegex = new Regex(@"<:(.+?):(\d+?)>", RegexOptions.Compiled);
+
         public static async Task ModifyAsync(IMessage msg, BaseDiscordClient client, Action<ModifyMessageParams> func,
             RequestOptions options)
         {
@@ -29,5 +36,18 @@ namespace Discord.Rest
         {
             await client.ApiClient.RemovePinAsync(msg.ChannelId, msg.Id, options);
         }
+
+        public static ImmutableArray<Emoji> GetEmojis(string text)
+        {
+            var matches = _emojiRegex.Matches(text);
+            var builder = ImmutableArray.CreateBuilder<Emoji>(matches.Count);
+            foreach (var match in matches.OfType<Match>())
+            {
+                ulong id;
+                if (ulong.TryParse(match.Groups[2].Value, NumberStyles.None, CultureInfo.InvariantCulture, out id))
+                    builder.Add(new Emoji(id, match.Groups[1].Value, match.Index));
+            }
+            return builder.ToImmutable();
+        }
     }
 }