1 files changed, 96 insertions, 0 deletions
diff --git a/plugins/SmartAutoReplier/LuaBridge.h b/plugins/SmartAutoReplier/LuaBridge.h
new file mode 100644
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+++ b/plugins/SmartAutoReplier/LuaBridge.h
@@ -0,0 +1,96 @@
+/*
+ *  Smart Auto Replier (SAR) - auto replier plugin for Miranda IM
+ *
+ *  Copyright (C) 2004 - 2012 by Volodymyr M. Shcherbyna <volodymyr@shcherbyna.com>
+ *
+ *  This code is inspired by article of RichardS at http://www.codeproject.com/Articles/11508/Integrating-Lua-into-C
+ *
+ *      This file is part of SAR.
+ *
+ *  SAR is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  SAR is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with SAR.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "luainc.h"
+
+class CLuaBridge
+{
+public:
+	CLuaBridge(void);
+	~CLuaBridge(void);
+
+public:
+	static int LuaDebugMessage(lua_State * pContext);
+	static void HandleLuaAsssert(lua_State * pContext);
+
+	bool RunScript(const char *szScript, size_t nLength, const char *szFuncName = NULL);	
+	bool ExecuteFunction(int nArgs, int nReturns  = 0);
+	operator lua_State *();
+
+protected:
+	lua_State *m_pLuaContext;
+};
+
+class CLuaStack
+{
+public:
+	CLuaStack(CLuaBridge & luaBridge) : m_pState(NULL), m_nTopIndex(0)
+	{
+		m_pState	 = (lua_State*)luaBridge;
+		m_nTopIndex	 = lua_gettop(m_pState);
+	}
+
+	virtual ~CLuaStack()
+	{
+		lua_settop(m_pState, m_nTopIndex);
+	}
+
+protected:
+
+	lua_State *m_pState;
+	int m_nTopIndex;
+};
+
+class CLuaTableThis
+{
+public:
+	CLuaTableThis(CLuaBridge & luaBridge, int nRef) : m_nOldRef(0), m_luaBridge(luaBridge)
+	{
+		lua_State *state = (lua_State*)m_luaBridge;
+
+		lua_getglobal(state, "this");
+		m_nOldRef = luaL_ref(state, LUA_REGISTRYINDEX);
+
+		lua_rawgeti(state, LUA_REGISTRYINDEX, nRef);
+		lua_setglobal(state, "this");
+	}
+
+	virtual ~CLuaTableThis()
+	{
+		lua_State *state = (lua_State*)m_luaBridge;
+
+		if (m_nOldRef > 0)
+		{
+			lua_rawgeti(state, LUA_REGISTRYINDEX, m_nOldRef);
+			lua_setglobal (state, "this");
+			luaL_unref(state, LUA_REGISTRYINDEX, m_nOldRef);
+		}
+	}
+
+protected:
+   int m_nOldRef;
+   CLuaBridge & m_luaBridge;
+};
+