/*
** $Id: linit.c,v 1.32.1.1 2013/04/12 18:48:47 roberto Exp $
** Initialization of libraries for lua.c and other clients
** See Copyright Notice in lua.h
*/

/*
** If you embed Lua in your program and need to open the standard
** libraries, call luaL_openlibs in your program. If you need a
** different set of libraries, copy this file to your project and edit
** it to suit your needs.
*/

#define linit_c
#define LUA_LIB

#include "lua.h"

#include "lualib.h"
#include "lauxlib.h"

/*
** these libs are loaded by lua.c and are readily available to any Lua
** program
*/
static const luaL_Reg loadedlibs[] = {
	{"_G", luaopen_base},
	{LUA_LOADLIBNAME, luaopen_package},
	{LUA_COLIBNAME, luaopen_coroutine},
	{LUA_TABLIBNAME, luaopen_table},
	{LUA_IOLIBNAME, luaopen_io},
	{LUA_OSLIBNAME, luaopen_os},
	{LUA_STRLIBNAME, luaopen_string},
	{LUA_BITLIBNAME, luaopen_bit32},
	{LUA_MATHLIBNAME, luaopen_math},
	{LUA_DBLIBNAME, luaopen_debug},
	{NULL, NULL}};

/*
** these libs are preloaded and must be required before used
*/
static const luaL_Reg preloadedlibs[] = {
	{NULL, NULL}};

LUALIB_API void luaL_openlibs(lua_State *L)
{
	const luaL_Reg *lib;
	/* call open functions from 'loadedlibs' and set results to global table */
	for (lib = loadedlibs; lib->func; lib++)
	{
		luaL_requiref(L, lib->name, lib->func, 1);
		lua_pop(L, 1); /* remove lib */
	}
	/* add open functions from 'preloadedlibs' into 'package.preload' table */
	luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD");
	for (lib = preloadedlibs; lib->func; lib++)
	{
		lua_pushcfunction(L, lib->func);
		lua_setfield(L, -2, lib->name);
	}
	lua_pop(L, 1); /* remove _PRELOAD table */
}
