http://blog.gmane.org/gmane.comp.lang.lua.general hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.lang.lua.general/91500 <pre>Hi all, Pioneer[1] is a game written in C++ that uses Lua for its scripting. We expose game objects to the Lua environment using "boxed pointers". We upgraded Lua from 5.1.4 to 5.2.0 a couple of weeks ago and have noticed substantial increases in memory usage since them, to the point that one of our developers on a machine with not much memory now can't play because the game causes his machine to swap to death. Investigating has uncovered a few potential problems with the way our Lua bindings are written which we intend to investigate - mostly that we allocate more game objects than we probably should and we certainly need to limit the amount of memory Lua can use. There is however a definite change in the way the garbage collector behaves, which can be demonstrated by the short program available here: http://pastebin.com/UAgtS3PX As you can see, while the 5.1 collector would regularly clean up and keep memory usage fairly flat, the 5.2 collector rarely runs and when it does it does not clean up much. I have tried to change the pause and step to mimic the old behaviour but have not found a way that helps. I also tried a custom allocator that caps memory usage but since the emergency collector will not clean up objects with finalisers it does not help much. I would like to hear any ideas anyone my have on how to fix this. Tuning the collector would be the nicest thing in the short term, but I'm also prepared to accept that we may be fundamentally doing something wrong in the way we expose our objects to Lua. All ideas gratefully received :) Cheers, Rob. 1. http://pioneerspacesim.net/ </pre> Robert Norris 2012-05-26T11:09:31 http://comments.gmane.org/gmane.comp.lang.lua.general/91493 <pre>Hello All, I got the below while trying to use luarocks. Looks like it was checking out Lua 5.1 while I have moved up to 5.2 rmicro&lt; at &gt;ubuntu:~/Downloads/luarocks-0.1$ luarocks install luasocket Installing http://luarocks.org/repositories/rocks/luasocket-2.0.2-5.src.rock... Archive: /tmp/luarocks_luarocks-rock-luasocket-2.0.2-5-5764/luasocket-2.0.2-5.src.rock inflating: luasocket-2.0.2-5.rockspec inflating: luasocket-2.0.2.tar.gz cd src; make all make[1]: Entering directory `/tmp/luarocks_luasocket-2.0.2-5-3165/luasocket-2.0.2/src' gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o luasocket.o luasocket.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o timeout.o timeout.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o buffer.o buffer.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o io.o io.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o auxiliar.o auxiliar.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o options.o options.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o inet.o inet.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o tcp.o tcp.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o udp.o udp.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o except.o except.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o select.o select.c gcc -O2 -DLUASOCKET_DEBUG -I/usr/include/lua5.1 -c -o usocket.o usocket.c gcc -shared -O -fpic -o socket.so.2.0.2 luasocket.o timeout.o buffer.o io.o auxiliar.o options.o inet.o tcp.o udp.o except.o select.o usocket.o /usr/bin/ld: luasocket.o: relocation R_X86_64_32 against `.data' can not be used when making a shared object; recompile with -fPIC luasocket.o: could not read symbols: Bad value collect2: ld returned 1 exit status make[1]: *** [socket.so.2.0.2] Error 1 make[1]: Leaving directory `/tmp/luarocks_luasocket-2.0.2-5-3165/luasocket-2.0.2/src' make: *** [all] Error 2 Error: Build error: Failed building. rmicro&lt; at &gt;ubuntu:~/Downloads/luarocks-0.1$ lua -v Lua 5.2.0 Copyright (C) 1994-2011 Lua.org, PUC-Rio rmicro&lt; at &gt;ubuntu:~/Downloads/luarocks-0.1$ </pre> Emeka 2012-05-25T23:10:25 http://comments.gmane.org/gmane.comp.lang.lua.general/91477 <pre>What is the essence of the below? local Request = {} Request.__index = Request Regards, \Emeka </pre> Emeka 2012-05-25T04:25:02 http://comments.gmane.org/gmane.comp.lang.lua.general/91476 <pre>Hello All, I would need example,that is use case before the below would sink. *__mode* - Control weak references. A string value with one or both of the characters 'k' and 'v' which specifies that the the *k*eys and/or *v*alues in the table are weak references. Regards, \Emeka </pre> Emeka 2012-05-25T04:18:37 http://comments.gmane.org/gmane.comp.lang.lua.general/91475 <pre>-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 See &lt;http://lua-users.org/wiki/LuaUsersLottery&gt; for an opportunity to be immortalized on the lua-users.org Acknowledgments page. There went five years-- it's again time to pick members of the community to pay the domain registration fee. Two winners will be selected, paying $25 USD each. That amount will cover the domain name until 2017. The last lottery, in 2007, had 27 participants-- that's the number to beat The drawing will be held at the start of Wednesday, May 30th (midnight UTC). Good luck (having an email titled "you won the lottery!" properly land in your inbox)! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk++1yQACgkQ5Nfg6kxAQQqEEQCfTZ8bKgp9gCYS8hSF1fIgs0g2 nl4Ani3qbse+dHyfZ5+oiAs0FpeI4/RA =A3rp -----END PGP SIGNATURE----- </pre> John Belmonte 2012-05-25T00:52:22 http://comments.gmane.org/gmane.comp.lang.lua.general/91473 <pre>I try to use socket.http to send a SOAP message with POST in the body of http. See the following code: local http = require("socket.http") body = [[&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"&gt; &lt;soap:Body&gt; &lt;ViewLogStatus xmlns="http://www.thermo.com/informatics/xmlns/limswebservice" /&gt; &lt;/soap:Body&gt; &lt;/soap:Envelope&gt;]] local r,c,h = http.request{ url = "http://xx/LimsWebService/default.asmx?op=ViewLogStatus", sink = ltn12.sink.file(io.open("test.out", "w")), headers = { ["Content-Type"] = "text/xml; charset=utf-8", ["content-length"] = tostring(body:len()), ["SOAPAction"]="\"http://www.thermo.com/informatics/xmlns/limswebservice/ViewLogStatus\"" ["Host"] = "xx", }, body = ltn12.source.string(body), method = "POST" } This leads always to a timeout and using a wireshark i can see the http headers only - no body. I tried a 'trick' to insert the body in the header telegram: local r,c,h = http.request{ url = "http://xx/LimsWebService/default.asmx?op=ViewLogStatus", sink = ltn12.sink.file(io.open("test.out", "w")), headers = { ["Content-Type"] = "text/xml; charset=utf-8", ["content-length"] = tostring(body:len()+4), ["SOAPAction"] = "\"http://www.thermo.com/informatics/xmlns/limswebservice/ViewLogStatus \"", ["Host"] = "xx\r\n\r\n\r\n"..body }, method = "POST" } This works (more or less) and the server is responding. Do I misunderstand something with the first (the 'official') version? Is there a known bug? Any help is welcome. Wilhelm </pre> Wilhelm Pflüger 2012-05-24T21:15:07 http://comments.gmane.org/gmane.comp.lang.lua.general/91465 <pre>Would anyone like to comment on the behavior of this code? It prints "local x" and "nil", which is probably correct, but odd. I understand that "load()" compiles code in a global context, but when I have the output of string.dump() its not really being compiled again, is it? It's just packaged VM bytecodes. Given that, what happens to the upvalues? The ref manual for 5.2 simply says "with new upvalues" when a dumped function is loaded, but makes no mention of what this means, and of course in the code sample there ARE no upvalues to bind to the function anyway. x = "global x" do local x = "local x" function foo() print(x) end end foo() sf = string.dump(foo) f2 = load(sf, "", "bt", _ENV) f2() </pre> Tim Hill 2012-05-24T17:14:45 http://comments.gmane.org/gmane.comp.lang.lua.general/91462 <pre>Excuse me if this is a problem on my end, but I recently noticed that whenever I reply to a message on this list, the message gets delivered correctly but shortly after that, I get a mail from lua.to.typisch&lt; at &gt;xoxy.net with the subject "Undelivered Mail Returned to Sender". Part of the message follows: ~~~~~~~~~~~~~~~~~~~~ This is the mail system at host mx1.nonlin.de. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system &lt;+public/amavis&lt; at &gt;nonlin.de&gt;: host mx1.nonlin.de[/var/run/cyrus/socket/lmtp] said: 550-Mailbox unknown. Either there is no mailbox associated with this 550-name or you do not have authorization to see it. 550 5.1.1 User unknown (in reply to RCPT TO command) Final-Recipient: rfc822; +public/amavis&lt; at &gt;nonlin.de Original-Recipient: rfc822;+public/amavis&lt; at &gt;nonlin.de Action: failed Status: 5.1.1 Remote-MTA: dns; mx1.nonlin.de Diagnostic-Code: smtp; 550-Mailbox unknown. Either there is no mailbox associated with this 550-name or you do not have authorization to see it. 550 5.1.1 User unknown ~~~~~~~~~~~~~~~~~~~~ </pre> Ignacio Burgueño 2012-05-24T15:18:20 http://comments.gmane.org/gmane.comp.lang.lua.general/91460 <pre>Hi hello. I get some bug report for lua-openssl, I can't finger out the reason of the bugs, Please give me some advice. Issue at https://github.com/zhaozg/lua-openssl/issues/7#issuecomment-5894470 Code at https://github.com/zhaozg/lua-openssl I test it on centos5/centos6 32 bits, Windows 32bits, I works for me. But I don't have a OpenSuse box, I need someone's help. Here is a traceback,that make me trouble. ---------------------------------------------------------------------------------- $ lua a.lua lua: malloc.c:3096: sYSMALLOc: Assertion (old*top == (((mbinptr) (((char *) &amp;((av)-&gt;bins[((1) - 1) * 2])) - __builtin_offsetof (struct malloc_chunk, fd)))) &amp;&amp; old_size == 0) || ((unsigned long) (old_size) &gt;= (unsigned long)((((*_builtin_offsetof (struct malloc_chunk, fd_nextsize))+((2 * (sizeof(size_t))) - 1)) &amp; ~((2 * (sizeof(size_t))) - 1))) &amp;&amp; ((old_top)-&gt;size &amp; 0x1) &amp;&amp; ((unsigned long)old_end &amp; pagemask) == 0)' failed. Aborted (core dumped) Stack trace: #0 0xb754e8c5 in raise () from /lib/libc.so.6 #1 &lt;https://github.com/zhaozg/lua-openssl/issues/1&gt; 0xb75501d5 in abort () from /lib/libc.so.6 #2 &lt;https://github.com/zhaozg/lua-openssl/issues/2&gt; 0xb758f294 in __malloc_assert () from /lib/libc.so.6 #3 &lt;https://github.com/zhaozg/lua-openssl/issues/3&gt; 0xb75921ec in _int_malloc () from /lib/libc.so.6 #4 &lt;https://github.com/zhaozg/lua-openssl/issues/4&gt; 0xb7593cdc in malloc () from /lib/libc.so.6 #5 &lt;https://github.com/zhaozg/lua-openssl/issues/5&gt; 0xb739b2bc in ?? () from /lib/libcrypto.so.1.0.0 #6 &lt;https://github.com/zhaozg/lua-openssl/issues/6&gt; 0xb739b94c in CRYPTO_malloc () from /lib/libcrypto.so.1.0.0 #7 &lt;https://github.com/zhaozg/lua-openssl/issues/7&gt; 0xb740d13c in lh_new () from /lib/libcrypto.so.1.0.0 #8 0xb739e99c in OBJ_NAME_init () from /lib/libcrypto.so.1.0.0 #9 0xb739ed05 in OBJ_NAME_add () from /lib/libcrypto.so.1.0.0 #10 0xb74177e8 in EVP_add_cipher () from /lib/libcrypto.so.1.0.0 #11 0xb741cb93 in OpenSSL_add_all_ciphers () from /lib/libcrypto.so.1.0.0 #12 0xb750f71d in luaopen_openssl () from ./openssl.so #13 0x0804f76e in luaD_precall () #14 0x0804fb38 in luaD_call () #15 0x0804d4d7 in lua_call () #16 0x08065a08 in ll_require () #17 0x0804f76e in luaD_precall () #18 0x08058605 in luaV_execute () #19 0x0804fb88 in luaD_call () #20 0x0804c0e0 in f_call () #21 0x0804eeb2 in luaD_rawrunprotected () #22 0x0804fd20 in luaD_pcall () #23 0x0804d572 in lua_pcall () #24 0x0804b5f6 in docall () #25 0x0804be8c in pmain () #26 0x0804f76e in luaD_precall () #27 0x0804fb38 in luaD_call () #28 0x0804c0a8 in f_Ccall () #29 0x0804eeb2 in luaD_rawrunprotected () #30 0x0804fd20 in luaD_pcall () #31 0x0804d601 in lua_cpcall () #32 0x0804b22c in main () -------------------------------------------------------------------------------------------------------------------- I hope this bugs can be fixed. Thanks </pre> zhiguo zhao 2012-05-24T14:49:08 http://comments.gmane.org/gmane.comp.lang.lua.general/91458 <pre>Hello Lua hackers, lgi 0.6 (alpha series) was released. As usual, it is available either from its github homepage[1], [2], luarocks (by 'luarocks install lgi'), and newly it is also packaged in debian/unstable (lua-lgi and lua-lgi-dev packages). lgi is gobject-introspection based dynamic Lua binding to GObject libraries. It allows using GObject-based libraries directly from Lua. If it sounds gibberish to you, ten simly said it allows easy usage of GTK+ and similar libraries from Lua. The main improvement in this version is cairo drawing library support. With cairo support in place, lgi's support of GTK+ is now fairly complete. Other than that, there were a few fixes mainly for supporting of some 'exotic' architectures (s390x, mips). Any comments or other feedback will be greatly appreciated, use github issue tracker [3] for reporting bugs. Happy hacking! Pavel [1] http://github.com/pavouk/lgi [2] http://github.com/downloads/pavouk/lgi/lgi-0.6.tar.gz [3] http://github.com/pavouk/lgi/issues </pre> Pavel Holejsovsky 2012-05-24T14:33:12 http://comments.gmane.org/gmane.comp.lang.lua.general/91444 <pre>Lua 5.2.1 (rc1) is now available at http://www.lua.org/work/lua-5.2.1-rc1.tar.gz MD51f0b1d1f184afec7d081909671cbf478 - SHA16f12b8296962c20cc78d3d8e1f39417622017dc8 - Lua 5.2.1 fixes all bugs listed in http://www.lua.org/bugs.html#5.2.0 . Lua 5.2.1 also fixes several other minor glitches and includes a revised reference manual. The complete diffs from lua-5.2.0 to 5.2.1 are available at http://www.lua.org/work/diffs-lua-5.2.0-lua-5.2.1-rc1.txt We thank everyone for their feedback on Lua 5.2 till now. All feedback welcome. Thanks. --lhf </pre> Luiz Henrique de Figueiredo 2012-05-23T17:09:38 http://comments.gmane.org/gmane.comp.lang.lua.general/91437 <pre>I don't know if Roberto accepts custom orders ;), but here are a couple of things I would really like to see in the third edition of PiL: * a brief mention of the major Lua extensions, with their main features. Since Lua does not come with a standard library of its own, having a schematic table of the most popular extensions is essential for the beginners. * something about the use of Lua on portable devices (Android, microcontrollers, etc) By the way, is the book release still scheduled for August 2012? Cheers Sergei </pre> sergei karhof 2012-05-23T13:10:16 http://comments.gmane.org/gmane.comp.lang.lua.general/91424 <pre>I'm writing a Lua module in C, but I want to store some Lua code in it as well to perform some initialization, and use lua_load() to run it as needed. However, I'm wondering about the best way to store this code. If I store it compiled, it may not work, because the bytecode format differs from one system to the next, correct? But if I store it as text, it requires the compiler, which may not be available e.g. in embedded systems? How does lua_load() react if Lua was compiled without the ability to compile code? Is there a reliable way to embed Lua code in a C library? </pre> Rena 2012-05-23T00:18:30 http://comments.gmane.org/gmane.comp.lang.lua.general/91415 <pre>Hi, I'm using luajit ffi for a month now. I found that it's not just a library as it extends the language in some key semantics: (1) values of different types can be compared (Lua can't do that); this makes things easier most of the time, and a tricky sometimes[1] (2) type(cdata) == "cdata" -- so now we have the 9th Lua type -- ok you can overload type(), but maybe ffi.type() similar to io.type() would have been better, dunno. I don't think you can make luaffi a drop-in replacement for lj ffi without patching Lua to address (1) am I right? [1] for a null pointer a, `a == nil` is true but `not a` is false and `a = a or default` is not the same for a null pointer a and for a nil value a. </pre> Cosmin Apreutesei 2012-05-22T16:03:01 http://comments.gmane.org/gmane.comp.lang.lua.general/91405 <pre>I just stumbled on LiveScript (http://gkz.github.com/LiveScript/), yet another CoffeeScript fork. The language has locals by default, and has an interesting solution to the local/upvalue definition and assignment conundrum. `a = 5` is always a local assignment. a is declared as local if it wasn't already. To assingn to an upvalue, you use the := operator. The language doesn't have globals. Transposed to Lua, this would be. make_incr = function() acc=0 --local, by default return function() acc = acc + 1 -- a local acc shadows the upvalue. -- this always add 1 to nil, or 1 to 0, -- depending on when you decide to declare the local, -- before or after the evaluation of the right hand side. return acc end end incr= make_incr() incr() --&gt; 1 incr() --&gt; 1 -- This works as intended make_incr = function() acc=0 --local, by default return function() acc := acc + 1 -- upvalue assignment return acc end end Marking assignment to non-locals explicit makes IMO the code easier to read. Globals could use yet another token. This would prevent a lot of bugs, and make strict.lua obsolete. If not for Lua, this could be a nice improvement in MoonScript. Kind regards, </pre> Pierre-Yves Gérardy 2012-05-22T12:55:51 http://comments.gmane.org/gmane.comp.lang.lua.general/91365 <pre>We are pleased to announce that the Lua Workshop 2012 will be hosted by Verisign and organized by John Rodriguez. The Workshop will take place on Nov 29 and 30 at Verisign's headquartes in Reston, Virginia, 15 minutes from Dulles International Airport. A weg page for the Workshop will be up soon at http://www.lua.org/wshop12.html As in previous workshops, the workshop is open to everyone interested in Lua. We hope to see many of you there. --lhf </pre> Luiz Henrique de Figueiredo 2012-05-21T17:05:17 http://comments.gmane.org/gmane.comp.lang.lua.general/91357 <pre>I am integrating Network Simulator 3 and Lua. I wrote a Mobile File in Lua script. that file will go on the network, visit certain nodes and collect information from them. The problem I am facing is that dont know how to keep the information that was collected from the nodes, i.e. I dont know how to save that information I am getting in the variables of Luascript !!! let me explain , for simplicity reasons, say my MobileAgent.lua script initially contains : array1 ={"10.10.2.3", "10.10.4.3"} array2={ ip1="10.2.3.4", ip2="10.3.2.4"} function update_array1 (t) (some code ) end function update_array2 (t) (some code ) end So remember, my MobileAgent.lua will travel to some nodes on the network and update the arrays. say MobileAgent.lua has to visit node1 ,node2 and node3. so first, the file arrives at node 1. node1 calls the script and add the element "255.255.255.0" to both arrays. What I want it for the MobileAgent.lua to look like this : *array1 ={"10.10.2.3", "10.10.4.3" , "255.255.255.0"}* *array2={ ip1="10.2.3.4", ip2="10.3.2.4", ip3="255.255.255.0"}* function update_array1 (t) (some code ) end function update_array2 (t) (some code ) end then, MobileAgent.luav arrives at node 2 node2 calls the updated script and add the element "255.255.255.2" to both arrays. so MobileAgent.lua should look like this : *array1 ={"10.10.2.3", "10.10.4.3" , "255.255.255.0",**"255.255.255.2"**}* *array2={ ip1="10.2.3.4", ip2="10.3.2.4", ip3="255.255.255.0",** ip4=** ** "255.255.255.2"**}* function update_array1 (t) (some code ) end function update_array2 (t) (some code ) end I was able to successfully pass the arrays to the C ++ code in the node, an that node updates them, pushes them on the stack, lua takes them from the stack and update the array in memory, but i dont know how to WRITE those on the lua script itself in the right place ! Kindly note that I have more than 2 arrays and some associative arrays in my script. but i gave that example for simplicity reasons. Any idea what I can do in lua to achieve what I want ? its very urgent !! And nobody has asked this question in ANY of the lua forums, so i couldnt find and help. is it doable in lua in the first place :s ??? thank you . </pre> Maha Akkari 2012-05-21T13:27:45 http://comments.gmane.org/gmane.comp.lang.lua.general/91354 <pre>Hi, I would like to store passwords in my Lua 5.1 application. For example as an MD5 hash. I managed to do that with luacrypto. I wish to continue my developing on a server which doesn't have the crypto C library installed which luacrypto depends on, so I cannot use luacrypto here. Is it possible to do hash encrypting in a Lua-only manner? On the Lua wiki I saw an article: it is possible with Lua 5.2. Can I switch to Lua 5.2 and still use Lua modules/libs that are written for Lua 5.1? (luasocket, coxpcall, copas) Any tips are welcome. Have a nice day, :-) Paco </pre> Paco Willers 2012-05-21T13:04:02 http://comments.gmane.org/gmane.comp.lang.lua.general/91347 <pre>LuaPosix (https://github.com/rrthomas/luaposix) is, for those who don't know, a binding of POSIX APIs for Lua. It's been around since at least Lua 3.1 (1998), but for much of its life has been unmaintained. I took it over a few years ago from Natanael Copa so I could work on it for the Lua version of the GNU Zile editor. At that time, there was very little development activity. In the past few months I've had a great deal of interest, and many fixes and additions to the library. Many thanks to the various contributors! However, looking after the library and keeping its design and coding coherent in the face of additions while allowing it to grow is not really something that interests me, or to which I'm suited: I still have only the one application that uses it (Zile) and I am not regularly using the library apart from that. Hence, I'd very much like to hand over to a new maintainer. Could anyone interested please write to me off-list? In the mean time, contributors (and users) should not worry: I don't plan to abandon LuaPosix, and will continue to integrate patches and fixes, though I'm afraid that they really must be pre-digested (preferably in the form of a github pull request, and definitely in the form of patches I can apply automatically, if they're not trivial). Similarly, I'm no longer prepared to re-work patches that don't fit with my standards for the library, though I'm happy to help contributors fix them (discussion is much quicker for me than coding!). I've added some notes to the project's README on coding style, which you can read at the bottom of the main github page (URL above). </pre> Reuben Thomas 2012-05-21T12:32:47 http://comments.gmane.org/gmane.comp.lang.lua.general/91345 <pre>I have some trouble with removing keys from tables. t = {a = 10} How can I remove these kind of table keys? I tried many table.remove() variations of course but none worked. Is it possible to remove this kind of key at all? </pre> forume 2012-05-21T08:59:25 http://comments.gmane.org/gmane.comp.lang.lua.general/91340 <pre>hi list :-) I just have a idea that replace lua_Number as a GMP number or MAPM number, is that possible? I mean, A lua with native big number support? regards, Xaiver Wang. </pre> Xavier Wang 2012-05-21T11:57:47 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.lang.lua.general