mirror of
https://github.com/lua/lua
synced 2024-11-25 14:20:41 +03:00
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/*
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** $Id: linit.c $
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** Initialization of libraries for lua.c and other clients
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** See Copyright Notice in lua.h
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*/
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#define linit_c
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#define LUA_LIB
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#include "lprefix.h"
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#include <stddef.h>
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#include "lua.h"
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#include "lualib.h"
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#include "lauxlib.h"
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/*
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** Standard Libraries
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*/
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static const luaL_Reg stdlibs[] = {
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{LUA_GNAME, luaopen_base},
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{LUA_LOADLIBNAME, luaopen_package},
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{LUA_COLIBNAME, luaopen_coroutine},
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{LUA_DBLIBNAME, luaopen_debug},
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{LUA_IOLIBNAME, luaopen_io},
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{LUA_MATHLIBNAME, luaopen_math},
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{LUA_OSLIBNAME, luaopen_os},
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{LUA_STRLIBNAME, luaopen_string},
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{LUA_TABLIBNAME, luaopen_table},
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{LUA_UTF8LIBNAME, luaopen_utf8},
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{NULL, NULL}
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};
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/*
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** require selected standard libraries and add the others to the
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** preload table.
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*/
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LUALIB_API void luaL_openselectedlibs (lua_State *L, int what) {
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int mask = 1;
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const luaL_Reg *lib;
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luaL_getsubtable(L, LUA_REGISTRYINDEX, LUA_PRELOAD_TABLE);
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for (lib = stdlibs; lib->func; (lib++, mask <<= 1)) {
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if (what & mask) { /* selected? */
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luaL_requiref(L, lib->name, lib->func, 1); /* require library */
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lua_pop(L, 1); /* remove result from the stack */
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}
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else { /* add library to PRELOAD table */
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lua_pushcfunction(L, lib->func);
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lua_setfield(L, -2, lib->name);
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}
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}
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lua_assert((mask >> 1) == LUA_UTF8LIBK);
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lua_pop(L, 1); // remove PRELOAD table
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}
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