diff --git a/Unvirt/CmdHelper.cpp b/Unvirt/CmdHelper.cpp
new file mode 100644
index 0000000..3e6acb8
--- /dev/null
+++ b/Unvirt/CmdHelper.cpp
@@ -0,0 +1,100 @@
+#include "CmdHelper.hpp"
+
+namespace Unvirt {
+	namespace CmdHelper {
+
+#pragma region cmd splitter
+
+		CmdSplitter::CmdSplitter() :
+			mCmdChar(0), mBuffer(nullptr), mResult(nullptr),
+			mState(StateType::NORMAL), mPreState(StateType::NORMAL) {
+			;
+		}
+		CmdSplitter::~CmdSplitter() {
+			;
+		}
+
+		std::vector<std::string> CmdSplitter::Convert(std::string& u8cmd) {
+			// set up variables
+			std::vector<std::string> result;
+			std::string buffer;
+			mBuffer = &buffer;
+			mResult = &result;
+			mState = mPreState = StateType::SPACE;
+
+			// split
+			for (auto it = u8cmd.begin(); it != u8cmd.end(); ++it) {
+				mCmdChar = (*it);
+
+				switch (mState) {
+					case StateType::SPACE:
+						ProcSpace();
+						break;
+					case StateType::SINGLE:
+						ProcSingle();
+						break;
+					case StateType::DOUBLE:
+						ProcDouble();
+						break;
+					case StateType::ESCAPE:
+						ProcEscape();
+						break;
+					case StateType::NORMAL:
+						ProcNormal();
+						break;
+				}
+			}
+
+			// final proc
+			switch (mState) {
+				case StateType::SPACE:
+					break;
+				case StateType::NORMAL:
+					// push the last one
+					mResult->push_back(*mBuffer);
+					break;
+				case StateType::SINGLE:
+				case StateType::DOUBLE:
+				case StateType::ESCAPE:
+					// error
+					result.clear();
+					break;
+			}
+
+			// return value
+			return result;
+		}
+
+#pragma endregion
+
+#pragma region interactive cmd helper classes
+
+		SubCmd::SubCmd() {
+		}
+
+		SubCmd::~SubCmd() {
+		}
+
+#pragma endregion
+
+
+#pragma region interactive cmd
+
+		InteractiveCmd::InteractiveCmd() {
+
+		}
+
+		InteractiveCmd::~InteractiveCmd() {
+
+		}
+
+		void InteractiveCmd::Run(void) {
+
+		}
+
+#pragma endregion
+
+
+
+	}
+}
\ No newline at end of file
diff --git a/Unvirt/CmdHelper.hpp b/Unvirt/CmdHelper.hpp
new file mode 100644
index 0000000..3ef3927
--- /dev/null
+++ b/Unvirt/CmdHelper.hpp
@@ -0,0 +1,146 @@
+#pragma once
+
+#include <unordered_map>
+#include <string>
+#include <functional>
+#include <vector>
+
+namespace Unvirt {
+	namespace CmdHelper {
+
+		class CmdSplitter {
+		public:
+			CmdSplitter();
+			CmdSplitter(const CmdSplitter&) = delete;
+			CmdSplitter& operator=(const CmdSplitter&) = delete;
+			~CmdSplitter();
+
+			std::vector<std::string> Convert(std::string& u8cmd);
+		private:
+			char mCmdChar;
+			std::string* mBuffer;
+			std::vector<std::string>* mResult;
+
+			enum class StateType : int {
+				SPACE,
+				SINGLE,
+				DOUBLE,
+				ESCAPE,
+				NORMAL
+			};
+			StateType mState, mPreState;
+
+			inline void ProcSpace(void) {
+				switch (mCmdChar) {
+					case '\'':
+						mState = StateType::SINGLE;
+						break;
+					case '"':
+						mState = StateType::DOUBLE;
+						break;
+					case '\\':
+						mState = StateType::ESCAPE;
+						mPreState = StateType::NORMAL;
+						break;
+					case ' ':
+						break;	// skip blank
+					default:
+						mBuffer->push_back(mCmdChar);
+						mState = StateType::NORMAL;
+						break;
+				}
+			}
+			inline void ProcSingle(void) {
+				switch (mCmdChar) {
+					case '\'':
+						mState = StateType::NORMAL;
+						break;
+					case '"':
+						mBuffer->push_back('"');
+						break;
+					case '\\':
+						mState = StateType::ESCAPE;
+						mPreState = StateType::SINGLE;
+						break;
+					case ' ':
+						mBuffer->push_back(' ');
+						break;
+					default:
+						mBuffer->push_back(mCmdChar);
+						break;
+				}
+			}
+			inline void ProcDouble(void) {
+				switch (mCmdChar) {
+					case '\'':
+						mBuffer->push_back('\'');
+						break;
+					case '"':
+						mState = StateType::NORMAL;
+						break;
+					case '\\':
+						mState = StateType::ESCAPE;
+						mPreState = StateType::DOUBLE;
+						break;
+					case ' ':
+						mBuffer->push_back(' ');
+						break;
+					default:
+						mBuffer->push_back(mCmdChar);
+						break;
+				}
+			}
+			inline void ProcEscape(void) {
+				// add itself
+				mBuffer->push_back(mCmdChar);
+				// restore state
+				mState = mPreState;
+			}
+			inline void ProcNormal(void) {
+				switch (mCmdChar) {
+					case '\'':
+						mBuffer->push_back('\'');
+						break;
+					case '"':
+						mBuffer->push_back('"');
+						break;
+					case '\\':
+						mState = StateType::ESCAPE;
+						mPreState = StateType::NORMAL;
+						break;
+					case ' ':
+						mResult->push_back(*mBuffer);
+						mBuffer->clear();
+						mState = StateType::SPACE;
+						break;
+					default:
+						mBuffer->push_back(mCmdChar);
+						break;
+				}
+			}
+		};
+
+		class SubCmd {
+		public:
+			SubCmd();
+			~SubCmd();
+
+		private:
+
+		};
+
+		class InteractiveCmd {
+		public:
+			InteractiveCmd();
+			~InteractiveCmd();
+
+			void Run(void);
+
+		private:
+			//std::unordered_map<std::string, CmdRegisteryEntry> mCmdDispatcher;
+
+
+		};
+
+	}
+}
\ No newline at end of file
diff --git a/Unvirt/InteractiveCmd.cpp b/Unvirt/InteractiveCmd.cpp
deleted file mode 100644
index 319c193..0000000
--- a/Unvirt/InteractiveCmd.cpp
+++ /dev/null
@@ -1,14 +0,0 @@
-#include "InteractiveCmd.hpp"
-
-namespace Unvirt {
-
-	InteractiveCmd::InteractiveCmd() {
-
-	}
-
-	InteractiveCmd::~InteractiveCmd() {
-
-	}
-
-
-}
diff --git a/Unvirt/InteractiveCmd.hpp b/Unvirt/InteractiveCmd.hpp
deleted file mode 100644
index 5704f6a..0000000
--- a/Unvirt/InteractiveCmd.hpp
+++ /dev/null
@@ -1,32 +0,0 @@
-#pragma once
-
-#include <unordered_map>
-#include <string>
-#include <functional>
-//#include <boost/program_options/options_description.hpp>
-//#include <boost/program_options/positional_options.hpp>
-//#include <boost/program_options/parsers.hpp>
-//#include <boost/program_options/variables_map.hpp>
-
-namespace Unvirt {
-
-	//struct CmdRegisteryEntry {
-	//	boost::program_options::options_description mOptDesc;
-	//	boost::program_options::positional_options_description mPosOptDesc;
-	//	std::function<void(boost::program_options::options_description&, boost::program_options::variables_map&)> mBindProc;
-	//};
-
-	class InteractiveCmd {
-	public:
-		InteractiveCmd();
-		~InteractiveCmd();
-
-		void Run(void) { ; }
-
-	private:
-		//std::unordered_map<std::string, CmdRegisteryEntry> mCmdDispatcher;
-
-		
-	};
-
-}
diff --git a/Unvirt/Unvirt.cpp b/Unvirt/Unvirt.cpp
index 7f46a9b..24e92de 100644
--- a/Unvirt/Unvirt.cpp
+++ b/Unvirt/Unvirt.cpp
@@ -1,5 +1,6 @@
 #include "AccessibleValue.hpp"
 #include "TerminalHelper.hpp"
+#include "CmdHelper.hpp"
 #include "VTStruct.hpp"
 #include <cstdio>
 #include <iostream>
@@ -12,9 +13,12 @@ int main(int argc, char* argv[]) {
 	LibCmo::CKFile vtfile(vtctx);
 	vtfile.Load("Language.old.nmo", LibCmo::CK_LOAD_FLAGS::CK_LOAD_DEFAULT);
 
-	printf(UNVIRT_TERMCOL_LIGHT_YELLOW(("Hello, %s\n")), u8"㴮!");
-
+	//printf(UNVIRT_TERMCOL_LIGHT_YELLOW(("Hello, %s\n")), u8"㴮!");
 
+	//std::string bbb("load \"Language. 㴮!old.nmo\" utf8 ");
+	//Unvirt::CmdHelper::CmdSplitter sp;
+	//auto a = sp.Convert(bbb);
+	//printf(UNVIRT_TERMCOL_LIGHT_YELLOW(("%s\n")), a[1].c_str());
 
 	return 0;
 }
diff --git a/Unvirt/Unvirt.vcxproj b/Unvirt/Unvirt.vcxproj
index e17fefa..91f3083 100644
--- a/Unvirt/Unvirt.vcxproj
+++ b/Unvirt/Unvirt.vcxproj
@@ -172,14 +172,14 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="AccessibleValue.cpp" />
-    <ClCompile Include="InteractiveCmd.cpp" />
+    <ClCompile Include="CmdHelper.cpp" />
     <ClCompile Include="TerminalHelper.cpp" />
     <ClCompile Include="StringHelper.cpp" />
     <ClCompile Include="Unvirt.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="AccessibleValue.hpp" />
-    <ClInclude Include="InteractiveCmd.hpp" />
+    <ClInclude Include="CmdHelper.hpp" />
     <ClInclude Include="TerminalHelper.hpp" />
     <ClInclude Include="StringHelper.hpp" />
   </ItemGroup>
diff --git a/Unvirt/Unvirt.vcxproj.filters b/Unvirt/Unvirt.vcxproj.filters
index 6f340fb..c92a160 100644
--- a/Unvirt/Unvirt.vcxproj.filters
+++ b/Unvirt/Unvirt.vcxproj.filters
@@ -27,7 +27,7 @@
     <ClCompile Include="TerminalHelper.cpp">
       <Filter>Sources</Filter>
     </ClCompile>
-    <ClCompile Include="InteractiveCmd.cpp">
+    <ClCompile Include="CmdHelper.cpp">
       <Filter>Sources</Filter>
     </ClCompile>
   </ItemGroup>
@@ -41,7 +41,7 @@
     <ClInclude Include="TerminalHelper.hpp">
       <Filter>Headers</Filter>
     </ClInclude>
-    <ClInclude Include="InteractiveCmd.hpp">
+    <ClInclude Include="CmdHelper.hpp">
       <Filter>Headers</Filter>
     </ClInclude>
   </ItemGroup>