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2013/11/20 Rena <>:

> I wonder if there's a good reason for Lua 5.3 or a third-party library to
> add, nrec) (as seen in LuaJIT) to Lua? It seems like a useful
> optimization, and its implementation should only take a couple of lines
> (call lua_createtable() and return).

While we are on the subject of API functions that would be nice to
have directly from Lua:

1. getmetafield(tbl,key)  -- calls luaL_getmetafield.
2. concat(...) -- calls lua_concat, which respects __tostring.