Lua 5.2 version

[dunstad]

Hey, just wanted to say I'm really glad I found your library here! I think it'll be very convenient for me, but I was disappointed to discover that Lua 5.3 is not the default architecture for a CPU in OpenComputers. Is it possible to make this work on the older version? What would that require?

[feldim2425]

It would require a rewrite of the websocket frame encoder and decoder. Because Lua 5.3 supports bit operations. In 5.2 bit operations are possible with the bit32 library. But from what I know, using bit32 will not work on Lua 5.3.

[dunstad]

Interesting. I might give that a shot when I find some time. If I succeeded, I would probably want to add in some sort of check for which Lua version is being used, so this library would work for either version.

[feldim2425]

I think if you make a version check the code would be much bigger. https://github.com/feldim2425/OC-Programs/blob/master/websocket_client/websocket/ws_tools.lua#L57-L189

This are the two methods that encode and decode websocket frames.

[dunstad]

My reading online shows me that in most cases Lua 5.3 still contains the bit32 library, is this not the case in OpenComputers?

Also thank you for the link!

[feldim2425]

I used some libraries that required bit32 and they failed on OpenComputers Lua 5.3....
But I just found out that they changed it since my last test. Seems like that was 2 years ago.
MightyPirates/OpenComputers#1338

EDIT: I tested again and it seems like bit32 is now also available on OpenComputers Lua 5.3

[CoolCat467]

MineOS for OpenComputers has a bit32 library substitute in the event that it is not present. You can find it here.