From 06efa23c85a2964644fd0b45ad2cdda48c9ee1eb Mon Sep 17 00:00:00 2001
From: "Tristan B. Velloza Kildaire" <deavmi@redxen.eu>
Date: Wed, 21 Jun 2023 14:09:32 +0200
Subject: [PATCH] Messages

- Implemented `stripIllegalCharacters(string)` which provided an input string this will strip any illegal characters present within it
---
 source/birchwood/protocol/messages.d | 38 +++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/source/birchwood/protocol/messages.d b/source/birchwood/protocol/messages.d
index 9cfdd8e..e143181 100644
--- a/source/birchwood/protocol/messages.d
+++ b/source/birchwood/protocol/messages.d
@@ -146,13 +146,49 @@ public final class Message
         parameterParse();
     }
 
-    /* TODO: Implement encoder function */
+    /** 
+     * Encodes this `Message` into a CRLF delimited
+     * byte array
+     *
+     * If `ChecksMode` is set to `EASY` (default) then
+     * any invalid characters will be stripped prior
+     * to encoding
+     *
+     * Throws: 
+     *  `BirchwoodException` if `ChecksMode` is set to
+     *  `HARDCORE` and invalid characters are present
+     * Returns: 
+     */
     public string encode()
     {
         string fullLine = from~" "~command~" "~params;
         return fullLine;
     }
 
+    /** 
+     * Provided an input string this will strip any illegal
+     * characters present within it
+     *
+     * Params:
+     *   input = the string to filter
+     * Returns: the filtered string
+     */
+    private static string stripIllegalCharacters(string input)
+    {
+        string stripped;
+        foreach(char character; input)
+        {
+            if(character == '\n' || character == '\r')
+            {
+                continue;
+            }
+
+            stripped ~= character;
+        }
+
+        return stripped;
+    }
+
     public static Message parseReceivedMessage(string message)
     {
         /* TODO: testing */