1 /* $NetBSD: linit.c,v 1.3 2014/07/19 18:38:34 lneto Exp $ */ 2 3 /* 4 ** $Id: linit.c,v 1.3 2014/07/19 18:38:34 lneto Exp $ 5 ** Initialization of libraries for lua.c and other clients 6 ** See Copyright Notice in lua.h 7 */ 8 9 10 /* 11 ** If you embed Lua in your program and need to open the standard 12 ** libraries, call luaL_openlibs in your program. If you need a 13 ** different set of libraries, copy this file to your project and edit 14 ** it to suit your needs. 15 */ 16 17 18 #define linit_c 19 #define LUA_LIB 20 21 #include "lua.h" 22 23 #include "lualib.h" 24 #include "lauxlib.h" 25 26 27 /* 28 ** these libs are loaded by lua.c and are readily available to any Lua 29 ** program 30 */ 31 static const luaL_Reg loadedlibs[] = { 32 {"_G", luaopen_base}, 33 #ifndef _KERNEL 34 {LUA_LOADLIBNAME, luaopen_package}, 35 #endif 36 {LUA_COLIBNAME, luaopen_coroutine}, 37 {LUA_TABLIBNAME, luaopen_table}, 38 #ifndef _KERNEL 39 {LUA_IOLIBNAME, luaopen_io}, 40 {LUA_OSLIBNAME, luaopen_os}, 41 #endif 42 {LUA_STRLIBNAME, luaopen_string}, 43 #ifndef _KERNEL 44 {LUA_MATHLIBNAME, luaopen_math}, 45 #endif 46 {LUA_DBLIBNAME, luaopen_debug}, 47 {LUA_UTF8LIBNAME, luaopen_utf8}, 48 #if defined(LUA_COMPAT_BITLIB) 49 {LUA_BITLIBNAME, luaopen_bit32}, 50 #endif 51 {NULL, NULL} 52 }; 53 54 55 /* 56 ** these libs are preloaded and must be required before used 57 */ 58 static const luaL_Reg preloadedlibs[] = { 59 {NULL, NULL} 60 }; 61 62 63 LUALIB_API void luaL_openlibs (lua_State *L) { 64 const luaL_Reg *lib; 65 /* call open functions from 'loadedlibs' and set results to global table */ 66 for (lib = loadedlibs; lib->func; lib++) { 67 luaL_requiref(L, lib->name, lib->func, 1); 68 lua_pop(L, 1); /* remove lib */ 69 } 70 /* add open functions from 'preloadedlibs' into 'package.preload' table */ 71 luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); 72 for (lib = preloadedlibs; lib->func; lib++) { 73 lua_pushcfunction(L, lib->func); 74 lua_setfield(L, -2, lib->name); 75 } 76 lua_pop(L, 1); /* remove _PRELOAD table */ 77 } 78 79