Added some basic HTTP and ip address parsing.

source/mijin/io/stream.hpp

@@ -68,6 +68,7 @@ enum class [[nodiscard]] StreamError
     IO_ERROR          = 1,
     NOT_SUPPORTED     = 2,
     CONNECTION_CLOSED = 3,
+    PROTOCOL_ERROR    = 4,
     UNKNOWN_ERROR     = -1
 };
 
@@ -430,6 +431,8 @@ inline const char* errorName(StreamError error) noexcept
             return "not supported";
         case StreamError::CONNECTION_CLOSED:
             return "connection closed";
+        case StreamError::PROTOCOL_ERROR:
+            return "protocol error";
         case StreamError::UNKNOWN_ERROR:
             return "unknown error";
     }