lua/linit.c
2009-05-01 10:46:35 -03:00

64 lines
1.5 KiB
C

/*
** $Id: linit.c,v 1.17 2009/05/01 13:37:11 roberto Exp roberto $
** Initialization of libraries for lua.c
** See Copyright Notice in lua.h
*/
#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 program
*/
static const luaL_Reg loadedlibs[] = {
{"_G", luaopen_base},
{LUA_LOADLIBNAME, luaopen_package},
{LUA_TABLIBNAME, luaopen_table},
{LUA_IOLIBNAME, luaopen_io},
{LUA_OSLIBNAME, luaopen_os},
{LUA_STRLIBNAME, luaopen_string},
{LUA_MATHLIBNAME, luaopen_math},
{NULL, NULL}
};
/*
** these libs are preloaded and must be required before used
*/
static const luaL_Reg preloadedlibs[] = {
{LUA_DBLIBNAME, luaopen_debug},
{NULL, NULL}
};
LUALIB_API void luaL_openlibs (lua_State *L) {
/* call open functions from 'loadedlibs' */
const luaL_Reg *lib = loadedlibs;
for (; lib->func; lib++) {
lua_pushcfunction(L, lib->func);
lua_pushstring(L, lib->name);
lua_call(L, 1, 0);
}
/* add open functions from 'preloadedlibs' into 'package.preload' table */
lib = preloadedlibs;
luaL_findtable(L, LUA_GLOBALSINDEX, "package.preload", 0);
for (; lib->func; lib++) {
lua_pushcfunction(L, lib->func);
lua_setfield(L, -2, lib->name);
}
lua_pop(L, 1); /* remove package.preload table */
#ifdef LUA_COMPAT_DEBUGLIB
lua_getglobal(L, "require");
lua_pushliteral(L, LUA_DBLIBNAME);
lua_call(L, 1, 0); /* call 'require"debug"' */
#endif
}