loadsrc_action.h

00001 /*************************************************************************
00002  *              ESLA: Embeddable Scripting LAnguage
00003  *                  Copyright (C) 2003 Frantz Maerten
00004  *
00005  *   This  program  is  free  software;  you  can  redistribute it and/or
00006  *   modify  it  under  the  terms  of  the GNU General Public License as
00007  *   published  by  the Free Software Foundation; either version 2 of the
00008  *   License, or (at your option) any later version.
00009  *
00010  *   If  you modify this software, you should contact the author, include
00011  *   a  notice giving the name of the person performing the modification,
00012  *   the date of modification, and the reason for such modification.
00013  *
00014  *   Note   that   the   GNU  General  Public  License  does  not  permit
00015  *   incorporating the Software into proprietary programs.
00016  *
00017  *  Contact: Frantz Maerten
00018  *     frantz@pangea.stanford.edu
00019  *
00020  *     Dept. of Geological & Environmental Sciences
00021  *     Stanford University 
00022  *     Stanford, CA 94305-2115
00023  *     USA
00024  *************************************************************************/
00025 
00026 
00027 #ifndef LOADSRC_ACTION
00028 #define LOADSRC_ACTION
00029 
00030 #include "../esla_namespace.h"
00031 #include "common.h"
00032 #include "gen_action.h"
00033 #include "local_string_var_registry.h"
00034 #include "local_fct_registry.h"
00035 #include <string>
00036 
00037 BEGIN_LIB_NAMESPACE 
00038 
00039 class LoadSrcAction: public GenAction {
00040 public:
00041   virtual RET_TYPE set_parameters(IfStream*, const std::string& params) ;
00042   virtual RET_TYPE execute() ;
00043 
00044   virtual std::string args() const ;
00045   virtual std::string command_name() const ;
00046 
00047   virtual GenAction* get_function(const std::string& name) ;
00048   virtual void add_function(GenAction*, const std::string& name) ;
00049 
00050   void set_logger(Logger& log) ;
00051 
00052 protected:
00053   virtual bool bind(const std::string& expression) ;
00054   virtual bool rebind(const std::string& name, const std::string& new_value) ;
00055   virtual std::string resolve(const std::string& name) ;
00056   virtual bool parse(const std::string& expr, std::string& res) ;
00057 
00058   LocalFunctionRegistry fct_registry_ ;
00059   LocalStringVarRegistry var_registry_ ;
00060   std::string file_ ;
00061 } ;
00062 //----------------------------------
00063 DECLARE_SMART_OBJECT(LoadSrcAction) ;
00064 //----------------------------------
00065 
00066 END_LIB_NAMESPACE
00067 
00068 #endif