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- Subject: Re: [ANN] Lua 5.2.0 (beta-rc1) now available
- From: Drake Wilson <drake@...>
- Date: Wed, 15 Jun 2011 11:34:33 -0700
Quoth Luiz Henrique de Figueiredo <firstname.lastname@example.org>, on 2011-06-13 15:33:19 -0300:
> The main changes since Lua 5.1 are listed in
> All feedback welcome. Thanks.
I think "isvarag" is a typo in the change list, no?
It may be advisable to have an os.exit variant that is guaranteed to
not close the state; _exit in C exists for a reason. (Mainly, forked
processes that need to exit without prematurely doing a cleanup that
will otherwise be done in the parent.) I'm not sure how common this
is in Lua.
Perhaps I missed an earlier discussion, but why a \* escape rather
than using \ before a newline? Using \ plus a non-alphanumeric
printing character as an escape can be confusing, in my experience.
Things I strongly approve of: better metamethod support re __len,
__pairs, __ipairs, __gc, __weak (ephemeron); the _ENV mechanism; light
C functions; emergency GC.
Things that I still would like but that appear to be unlikely to make
it: non-copying string construction. This has been rehashed a few
times already. I'm not absolutely certain it's worth the complexity,
but a large every-time allocation and write seems likely to be much
more expensive than a few random reads and a large occasional full
comparison. If only I had the energy to look more thoroughly...
---> Drake Wilson