source: trunk/tests/lualib_test/lualib_test.cc @ 74

#include <nv/lib/lua.hh>
#include <nv/lua/lua_state.hh>
#include <nv/lua/lua_raw.hh>
#include <nv/lua/lua_glm.hh>
#include <nv/logger.hh>
#include <nv/types.hh>
#include <nv/object.hh>
#include <string>
#include <iostream>
#include <functional>
#include <nv/gui/gui_element.hh>

struct test_struct
{
        std::string f;
        int i;
};

NV_REGISTER_NAME( test_struct )

int main(int, char* [])
{
        nv::type_database db;
        nv::object::register_type( &db );

        db.create_type<int>();
        db.create_type<std::string>();
        nv::type_field fields[] = { 
                nv::type_field("f", &test_struct::f ),
                nv::type_field("i", &test_struct::i ),
        };
        db.create_type<test_struct>().fields( fields );

        nv::logger log(nv::LOG_TRACE);
        log.add_sink( new nv::log_file_sink("log.txt"), nv::LOG_TRACE );
        log.add_sink( new nv::log_console_sink(), nv::LOG_TRACE );
        
        NV_LOG( nv::LOG_NOTICE, "Logging started" );

        // create new Lua state
        {
                nv::lua::state state( true );
                state.log_stack();
                nlua_register_glm( state.get_raw() );
                // run the Lua script
                state.do_file( "init.lua" );

                for (;;)
                {
                        nv::lua::stack_guard guard( &state );
                        int stack = guard.get_level();
                        std::string input;
                        std::cout << "LUA (" << stack << ") > ";
                        std::getline( std::cin, input );
                        if (input == "quit")
                        {
                                break;
                        }

                        if (input.find("=", 0) == std::string::npos && 
                                input.find("if", 0) == std::string::npos && 
                                input.find("return", 0) == std::string::npos)
                        {
                                input = "return " + input;
                        }

                        std::cout << "> " << input << std::endl;

                        int code = luaL_loadstring( state.get_raw(), input.c_str() );
                        if (code == 0) code = lua_pcall( state.get_raw(), 0, LUA_MULTRET, 0);
                        if (code != 0)
                        {
                                std::string error = lua_tostring( state.get_raw(), -1 );
                                std::cout << "ERROR : " << error << std::endl;
                                continue;
                        }

                        if (lua_gettop( state.get_raw() ) > stack)
                        {
                                for ( int i = stack+1; i <= lua_gettop( state.get_raw() ); ++i )
                                {
                                        std::cout << nlua_typecontent( state.get_raw(), i ) << std::endl;
                                }
                        }
                }
        }
        NV_LOG( nv::LOG_NOTICE, "Logging stopped" );

        return 0;
}