From 602ac134e5c88f200815736573162145b7134b74 Mon Sep 17 00:00:00 2001
From: RogueException <rogueexception@gmail.com>
Date: Sun, 26 Jun 2016 22:54:12 -0300
Subject: [PATCH] Added Prefix check extensions to IMessage

---
 .../Extensions/MessageExtensions.cs           | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 src/Discord.Net.Commands/Extensions/MessageExtensions.cs

diff --git a/src/Discord.Net.Commands/Extensions/MessageExtensions.cs b/src/Discord.Net.Commands/Extensions/MessageExtensions.cs
new file mode 100644
index 000000000..2ba4973fe
--- /dev/null
+++ b/src/Discord.Net.Commands/Extensions/MessageExtensions.cs
@@ -0,0 +1,44 @@
+namespace Discord.Commands
+{
+    public static class MessageExtensions
+    {
+        public static bool HasCharPrefix(this IMessage msg, char c, ref int argPos)
+        {
+            var text = msg.RawText;
+            if (text.Length > 0 && text[0] == c)
+            {
+                argPos = 1;
+                return true;
+            }
+            return false;
+        }
+        public static bool HasStringPrefix(this IMessage msg, string str, ref int argPos)
+        {
+            var text = msg.RawText;
+            str = str + ' ';
+            if (text.StartsWith(str))
+            {
+                argPos = str.Length;
+                return true;
+            }
+            return false;
+        }
+        public static bool HasMentionPrefix(this IMessage msg, IUser user, ref int argPos)
+        {
+            var text = msg.RawText;
+            string mention = user.Mention + ' ';
+            if (text.StartsWith(mention))
+            {
+                argPos = mention.Length;
+                return true;
+            }
+            string nickMention = user.NicknameMention + ' ';
+            if (text.StartsWith(mention))
+            {
+                argPos = nickMention.Length;
+                return true;
+            }
+            return false;
+        }
+    }
+}
\ No newline at end of file