1 /*
2 ** $Id: linit.c,v 1.32 2011/04/08 19:17:36 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 {LUA_MATHLIBNAME, luaopen_math},
39 {LUA_DBLIBNAME, luaopen_debug},
40 {NULL, NULL}
41 };
42
43
44 /*
45 ** these libs are preloaded and must be required before used
46 */
47 static const luaL_Reg preloadedlibs[] = {
48 {NULL, NULL}
49 };
50
51
luaL_openlibs(lua_State * L)52 LUALIB_API void luaL_openlibs (lua_State *L) {
53 const luaL_Reg *lib;
54 /* call open functions from 'loadedlibs' and set results to global table */
55 for (lib = loadedlibs; lib->func; lib++) {
56 luaL_requiref(L, lib->name, lib->func, 1);
57 lua_pop(L, 1); /* remove lib */
58 }
59 /* add open functions from 'preloadedlibs' into 'package.preload' table */
60 luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD");
61 for (lib = preloadedlibs; lib->func; lib++) {
62 lua_pushcfunction(L, lib->func);
63 lua_setfield(L, -2, lib->name);
64 }
65 lua_pop(L, 1); /* remove _PRELOAD table */
66 }
67
68