Re: Standard Lua modules in 5.2.1
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- Subject: Re: Standard Lua modules in 5.2.1
- From: "John D. Ramsdell" <ramsdell0@...>
- Date: Thu, 5 Jul 2012 18:56:57 -0400
The following works for me in both 5.1 and 5.2.
John
static const luaL_Reg lualibs[] = {
#if LUA_VERSION_NUM < 502
{"", luaopen_base},
#else
{"_G", luaopen_base},
#endif
{LUA_TABLIBNAME, luaopen_table},
{LUA_STRLIBNAME, luaopen_string},
{NULL, NULL}
};
lua_State *
dl_open(void)
{
lua_State *L = luaL_newstate();
const luaL_Reg *lib = lualibs; /* Load libraries used by the */
for (; lib->func; lib++) { /* Lua datalog program. */
#if LUA_VERSION_NUM < 502
lua_pushcfunction(L, lib->func);
lua_pushstring(L, lib->name);
lua_call(L, 1, 0);
#else
luaL_requiref(L, lib->name, lib->func, 1);
lua_pop(L, 1); /* remove lib */
#endif
}
if (dl_lua(L)) /* Load the Lua program. */
return NULL;
else
return L;
}
On Thu, Jul 5, 2012 at 5:48 PM, Luiz Henrique de Figueiredo
<lhf@tecgraf.puc-rio.br> wrote:
>> The following minimal code does not set the modules.( OOLUA::run_chunk
>> just runs the chunk checking for error etc it is not important.)
>
> In Lua 5.2, libraries no longer create globals; they just return
> the library table.
>
> luaL_openlibs calls luaL_requiref instead of calling luaopen_*,
> and luaL_requiref sets the corresponding globals.
>