Function luaL_requiref

third-party/lua-5.2.4/src/lauxlib.c:886–899

** stripped-down 'require'. Calls 'openf' to open a module, ** registers the result in 'package.loaded' table and, if 'glb' ** is true, also registers the result in the global table. ** Leaves resulting module on the top. */

** Leaves resulting module on the top.
*/
LUALIB_API void luaL_requiref (lua_State *L, const char *modname,
                               lua_CFunction openf, int glb) {
  lua_pushcfunction(L, openf);
  lua_pushstring(L, modname);  /* argument to open function */
  lua_call(L, 1, 1);  /* open module */
  luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED");
  lua_pushvalue(L, -2);  /* make copy of module (call result) */
  lua_setfield(L, -2, modname);  /* _LOADED[modname] = module */
  lua_pop(L, 1);  /* remove _LOADED table */
  if (glb) {
    lua_pushvalue(L, -1);  /* copy of 'mod' */
    lua_setglobal(L, modname);  /* _G[modname] = module */
  }
}


LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p,