Add string lua 5.3 compat apis, pack,unpack,packsize

[zhaozg]

No description provided.

[creationix]

I think this is missing a file. Is there a reason this needs to be in core and not as an addon?

[zhaozg]

pack,unpack,packsize are lua 5.3 office api, It's useful to handle structure data and communication protocol, I think luvi should enhance this abilities from core layer.
But these apis not support by luajit, and because this need include other projects, so please keep this RP open, maybe I can find better solutions.

[zhaozg]

Finished, add string.unpack, string.pack,string.packsize to support structure being created or read.

http://www.lua.org/manual/5.3/manual.html#pdf-string.unpack
http://www.lua.org/manual/5.3/manual.html#pdf-string.pack
http://www.lua.org/manual/5.3/manual.html#pdf-string.packsize
http://www.lua.org/manual/5.3/manual.html#6.4.2

[imzyxwvu]

I agree with it that this would help a lot working with binary data and binary protocol streams and should be included in luvi as an extension to the Lua standard library. You could port the implement of Lua 5.3. I have also an fifo in-memory stream implement which works better than decoders with binary protocol streams and planning to open an PR.

在 2015年4月14日，09:07，George Zhao notifications@github.com 写道：

pack,unpack,packsize are lua 5.3 office api, It's useful to handle structure data and communication protocol, I think luvi should enhance this abilities from core layer.
But these apis not support by luajit, and because this need include other projects, so please keep this RP open, maybe I can find better solutions.

―
Reply to this email directly or view it on GitHub.

[creationix]

+1