ScriptInterpreter.h

//	VirtualDub - Video processing and capture application
//	Copyright (C) 1998-2002 Avery Lee
//
//	This program 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 2 of the License, or
//	(at your option) any later version.
//
//	This program 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 this program; if not, write to the Free Software
//	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
//
//	FILTER EXEMPTION:
//
//	As a special exemption to the GPL in order to permit creation of
//	filters that work with multiple programs as well as VirtualDub,
//	compiling with this header file shall not be considered creation
//	of a derived work; that is, the act of compiling with this header
//	file does not require your source code or the resulting module
//	to be released in source code form or under a GPL-compatible
//	license according to parts (2) and (3) of the GPL.  A filter built
//	using this header file may thus be licensed or dual-licensed so
//	that it may be used with VirtualDub as well as an alternative
//	product whose license is incompatible with the GPL.
//
//	Nothing in this exemption shall be construed as applying to
//	VirtualDub itself -- that is, this exemption does not give you
//	permission to use parts of VirtualDub's source besides this
//	header file, or to dynamically link with VirtualDub as part
//	of the filter load process, in a fashion not permitted by the
//	GPL.

#ifndef f_SYLIA_SCRIPTINTERPRETER_H
#define f_SYLIA_SCRIPTINTERPRETER_H

class CScriptValue;
class CScriptError;
struct CScriptObject;
class IScriptInterpreter;

typedef CScriptValue (*ScriptRootHandlerPtr)(IScriptInterpreter *,char *,void *);

class IScriptInterpreter {
public:
	virtual	void Destroy()										=0;

	virtual void SetRootHandler(ScriptRootHandlerPtr, void *)	=0;

	virtual void ExecuteLine(char *s)							=0;

	virtual void ScriptError(int e)								=0;
	virtual char* TranslateScriptError(CScriptError& cse)		=0;
	virtual char** AllocTempString(long l)						=0;

	virtual CScriptValue LookupObjectMember(CScriptObject *obj, void *, char *szIdent) = 0;
};

extern "C" __declspec(dllexport) IScriptInterpreter * __stdcall CreateScriptInterpreter();

#define GETPROC_CREATESCRIPTINTERPRETER(hInst)	((IScriptInterpreter *(__stdcall *)())GetProcAddress(hInst, "_CreateScriptInterpreter@0"))

#define EXT_SCRIPT_ERROR(x)	(isi->ScriptError((CScriptError::x)))

#endif