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1866
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1 /*
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2 ** $Id: linit.c,v 1.32 2011/04/08 19:17:36 roberto Exp $
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3 ** Initialization of libraries for lua.c and other clients
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4 ** See Copyright Notice in lua.h
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5 */
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6
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7
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8 /*
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9 ** If you embed Lua in your program and need to open the standard
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10 ** libraries, call luaL_openlibs in your program. If you need a
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11 ** different set of libraries, copy this file to your project and edit
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12 ** it to suit your needs.
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13 */
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14
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15
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16 #define linit_c
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17 #define LUA_LIB
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18
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19 #include "lua.h"
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20
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21 #include "lualib.h"
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22 #include "lauxlib.h"
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23
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24
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25 /*
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26 ** these libs are loaded by lua.c and are readily available to any Lua
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27 ** program
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28 */
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29 static const luaL_Reg loadedlibs[] = {
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30 {"_G", luaopen_base},
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31 {LUA_LOADLIBNAME, luaopen_package},
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32 {LUA_COLIBNAME, luaopen_coroutine},
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33 {LUA_TABLIBNAME, luaopen_table},
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34 {LUA_IOLIBNAME, luaopen_io},
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35 {LUA_OSLIBNAME, luaopen_os},
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36 {LUA_STRLIBNAME, luaopen_string},
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37 {LUA_BITLIBNAME, luaopen_bit32},
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38 {LUA_MATHLIBNAME, luaopen_math},
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39 {LUA_DBLIBNAME, luaopen_debug},
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40 {NULL, NULL}
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41 };
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42
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43
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44 /*
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45 ** these libs are preloaded and must be required before used
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46 */
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47 static const luaL_Reg preloadedlibs[] = {
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48 {NULL, NULL}
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49 };
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50
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51
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52 LUALIB_API void luaL_openlibs (lua_State *L) {
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53 const luaL_Reg *lib;
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54 /* call open functions from 'loadedlibs' and set results to global table */
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55 for (lib = loadedlibs; lib->func; lib++) {
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56 luaL_requiref(L, lib->name, lib->func, 1);
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57 lua_pop(L, 1); /* remove lib */
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58 }
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59 /* add open functions from 'preloadedlibs' into 'package.preload' table */
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60 luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD");
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61 for (lib = preloadedlibs; lib->func; lib++) {
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62 lua_pushcfunction(L, lib->func);
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63 lua_setfield(L, -2, lib->name);
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64 }
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65 lua_pop(L, 1); /* remove _PRELOAD table */
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66 }
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67
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