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*/
29static 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*/
49static const luaL_Reg preloadedlibs[] = {
50  {NULL, NULL}
51};
52
53
54LUALIB_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