1 /* 2 ** $Id: linit.c,v 1.39 2016/12/04 20:17:24 roberto Exp $ 3 ** Initialization of libraries for lua.c and other clients 4 ** See Copyright Notice in lua.h 5 */ 6 7 8 #define linit_c 9 #define LUA_LIB 10 11 /* 12 ** If you embed Lua in your program and need to open the standard 13 ** libraries, call luaL_openlibs in your program. If you need a 14 ** different set of libraries, copy this file to your project and edit 15 ** it to suit your needs. 16 ** 17 ** You can also *preload* libraries, so that a later 'require' can 18 ** open the library, which is already linked to the application. 19 ** For that, do the following code: 20 ** 21 ** luaL_getsubtable(L, LUA_REGISTRYINDEX, LUA_PRELOAD_TABLE); 22 ** lua_pushcfunction(L, luaopen_modname); 23 ** lua_setfield(L, -2, modname); 24 ** lua_pop(L, 1); // remove PRELOAD table 25 */ 26 27 #include "lprefix.h" 28 29 30 #include <stddef.h> 31 32 #include "lua.h" 33 34 #include "lualib.h" 35 #include "lauxlib.h" 36 37 38 /* 39 ** these libs are loaded by lua.c and are readily available to any Lua 40 ** program 41 */ 42 static const luaL_Reg loadedlibs[] = { 43 {"_G", luaopen_base}, 44 {LUA_LOADLIBNAME, luaopen_package}, 45 {LUA_COLIBNAME, luaopen_coroutine}, 46 {LUA_TABLIBNAME, luaopen_table}, 47 {LUA_IOLIBNAME, luaopen_io}, 48 {LUA_OSLIBNAME, luaopen_os}, 49 {LUA_STRLIBNAME, luaopen_string}, 50 {LUA_MATHLIBNAME, luaopen_math}, 51 {LUA_UTF8LIBNAME, luaopen_utf8}, 52 {LUA_DBLIBNAME, luaopen_debug}, 53 #if defined(LUA_COMPAT_BITLIB) 54 {LUA_BITLIBNAME, luaopen_bit32}, 55 #endif 56 {NULL, NULL} 57 }; 58 59 60 LUALIB_API void luaL_openlibs (lua_State *L) { 61 const luaL_Reg *lib; 62 /* "require" functions from 'loadedlibs' and set results to global table */ 63 for (lib = loadedlibs; lib->func; lib++) { 64 luaL_requiref(L, lib->name, lib->func, 1); 65 lua_pop(L, 1); /* remove lib */ 66 } 67 } 68 69