making it work with torch

[kwon-young]

Hi,
I would like to use this plugin with the framework torch.
For now, i installed the plugin with vim-plug and the plugin doesn't seem to work well.
After rapidly reading the doc, i set these settings in my vimrc:

let g:lua_interpreter_path = '/home/username/torch/install/bin/qlua'
let g:lua_internal = 0
let g:lua_complete_omni = 1

Torch installation embed a custom lua interpreter, however i'm a new to lua so i don't really know how to configure the plugin to make things work.

When i try the omni completion, i have the following error:

E121: Undefined Variable: Torch

Also the gf mapping doesn't really work

[vzhong]

Hi @kwon-young ,

I would really love to use this plugin with Torch as well. I can reproduce your error with a fresh install of Torch. After digging around a bit, I think the problem is happening in

https://github.com/xolox/vim-lua-ftplugin/blob/master/autoload/xolox/lua.vim#L447

Namely, the returned output list variable has two elements that are:

Torch 7.0  Copyright (C) 2001-2011 Idiap, NEC Labs, NYU
Torch 7.0  Copyright (C) 2001-2011 Idiap, NEC Labs, NYU

Then, these two lines are passed to the eval call and we end up with the Undefined Variable: Torch error.

@xolox do you have any pointers on how we can debug this further?

Edit: Ah ok! I think I know what is happening. This vimscript takes as output everything that is printed by omnicomplete.lua. However, one of the Torch scripts prints Torch 7.0 ... to stdout when included.

[vzhong]

So, this plugin works if you comment out the print statement in the beginning of ~/torch/install/share/lua/5.1/env/init.lua (your path will likely vary).