1 /* 2 ** $Id: linit.c,v 1.32.1.1 2013/04/12 18:48:47 roberto Exp $ 3 ** Initialization of libraries for lua.c and other clients 4 ** See Copyright Notice in lua.h 5 */ 6 7 8 /* 9 ** If you embed Lua in your program and need to open the standard 10 ** libraries, call luaL_openlibs in your program. If you need a 11 ** different set of libraries, copy this file to your project and edit 12 ** it to suit your needs. 13 */ 14 15 16 #define linit_c 17 #define LUA_LIB 18 19 #include "lua.h" 20 21 #include "lualib.h" 22 #include "lauxlib.h" 23 24 25 /* 26 ** these libs are loaded by lua.c and are readily available to any Lua 27 ** program 28 */ 29 static const luaL_Reg loadedlibs[] = { 30 {"_G", luaopen_base}, 31 {LUA_LOADLIBNAME, luaopen_package}, 32 {LUA_COLIBNAME, luaopen_coroutine}, 33 {LUA_TABLIBNAME, luaopen_table}, 34 {LUA_IOLIBNAME, luaopen_io}, 35 {LUA_OSLIBNAME, luaopen_os}, 36 {LUA_STRLIBNAME, luaopen_string}, 37 {LUA_BITLIBNAME, luaopen_bit32}, 38 #ifndef LUA_NUMBER_INTEGRAL 39 {LUA_MATHLIBNAME, luaopen_math}, 40 #endif 41 {LUA_DBLIBNAME, luaopen_debug}, 42 {NULL, NULL} 43 }; 44 45 46 /* 47 ** these libs are preloaded and must be required before used 48 */ 49 static const luaL_Reg preloadedlibs[] = { 50 {NULL, NULL} 51 }; 52 53 54 LUALIB_API void luaL_openlibs (lua_State *L) { 55 const luaL_Reg *lib; 56 /* call open functions from 'loadedlibs' and set results to global table */ 57 for (lib = loadedlibs; lib->func; lib++) { 58 luaL_requiref(L, lib->name, lib->func, 1); 59 lua_pop(L, 1); /* remove lib */ 60 } 61 /* add open functions from 'preloadedlibs' into 'package.preload' table */ 62 luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); 63 for (lib = preloadedlibs; lib->func; lib++) { 64 lua_pushcfunction(L, lib->func); 65 lua_setfield(L, -2, lib->name); 66 } 67 lua_pop(L, 1); /* remove _PRELOAD table */ 68 } 69 70
