/*

** $Id: linit.c $

** Initialization of libraries for lua.c and other clients

** See Copyright Notice in lua.h

*/

#define linit_c

#define LUA_LIB

#include "lprefix.h"

#include <stddef.h>

#include "lua.h"

#include "lualib.h"

#include "lauxlib.h"

#include "llimits.h"

/*

** Standard Libraries. (Must be listed in the same ORDER of their

** respective constants LUA_<libname>K.)

*/

static const luaL_Reg stdlibs[] = {

{LUA_GNAME, luaopen_base},

{LUA_LOADLIBNAME, luaopen_package},

{LUA_COLIBNAME, luaopen_coroutine},

{LUA_DBLIBNAME, luaopen_debug},

{LUA_IOLIBNAME, luaopen_io},

{LUA_MATHLIBNAME, luaopen_math},

{LUA_OSLIBNAME, luaopen_os},

{LUA_STRLIBNAME, luaopen_string},

{LUA_TABLIBNAME, luaopen_table},

{LUA_UTF8LIBNAME, luaopen_utf8},

{NULL, NULL}

};

/*

** require and preload selected standard libraries

*/

LUALIB_API void luaL_openselectedlibs (lua_State *L, int load, int preload) {

int mask;

const luaL_Reg *lib;

luaL_getsubtable(L, LUA_REGISTRYINDEX, LUA_PRELOAD_TABLE);

for (lib = stdlibs, mask = 1; lib->name != NULL; lib++, mask <<= 1) {

if (load & mask) { /* selected? */

luaL_requiref(L, lib->name, lib->func, 1); /* require library */

lua_pop(L, 1); /* remove result from the stack */

}

else if (preload & mask) { /* selected? */

lua_pushcfunction(L, lib->func);

lua_setfield(L, -2, lib->name); /* add library to PRELOAD table */

}

}

lua_assert((mask >> 1) == LUA_UTF8LIBK);

lua_pop(L, 1); /* remove PRELOAD table */

}