# key causing delay in Neovim

Question

Whenever I input # in Neovim I get delay. I tried to fix this with

nnoremap # <nop>
vnoremap # <nop>

In my init.vim but that seemed to only fix it in non .tex environments. I assume this has something to do with the plugins I am using. Specifically, I suspect this is an issue with vimtex / ultisnips.

Question: Can someone help me diagnose where this is comming from and to disable it?

Extra: To :verbose imap #

I am getting

i  #B          *@vimtex#imaps#wrap_math("#B", vimtex#imaps#style_math("mathbb")
)
        Last set from ~/.config/nvim/pack/plugins/start/vimtex/autoload/vimtex/
imaps.vim line 119
i  #-          *@vimtex#imaps#wrap_math("#-", vimtex#imaps#style_math("overline
"))
        Last set from ~/.config/nvim/pack/plugins/start/vimtex/autoload/vimtex/
imaps.vim line 119
i  #c          *@vimtex#imaps#wrap_math("#c", vimtex#imaps#style_math("mathcal"
))
        Last set from ~/.config/nvim/pack/plugins/start/vimtex/autoload/vimtex/
imaps.vim line 119
i  #f          *@vimtex#imaps#wrap_math("#f", vimtex#imaps#style_math("mathfrak
"))
        Last set from ~/.config/nvim/pack/plugins/start/vimtex/autoload/vimtex/
imaps.vim line 119
i  #b          *@vimtex#imaps#wrap_math("#b", vimtex#imaps#style_math("mathbf")
)
        Last set from ~/.config/nvim/pack/plugins/start/vimtex/autoload/vimtex/
imaps.vim line 119
i  #/          *@vimtex#imaps#wrap_math("#/", vimtex#imaps#style_math("slashed"
))
        Last set from ~/.config/nvim/pack/plugins/start/vimtex/autoload/vimtex/
imaps.vim line 119

Hi. The input is in input mode. For example when I type #, nvim displays it with the cursor like |# waits one second and becomes #| — Maths Wizzard, Oct 08 '23 at 12:53
Do you still have something open in your question? How can we help you further? Otherwise may be could you accept one solution using the v button next to the arrow voting buttons. It allow the quesrion to rest :-) — Vivian De Smedt, Oct 08 '23 at 20:07

Vivian De Smedt · Accepted Answer · 2023-10-10T04:22:07.223

2

This probably means that you have a mapping or several mapping that starts with # and that Vim is waiting you type another key to solve the ambiguity.

To know more about the mapping that starts with # you can use:

:verbose nmap #

If the problem you have is input mode you can use:

:verbose imap #

VimTex comes with several mapping in insert mode that starts with #

#B
#b
#c
#f
#-
#/

More information about the insert mode mapping that comes with vimtex with :help vimtex-imaps.

You can list all the vimtex insert mode mapping with:

:VimtexImapsList

Unless you deactivate all of them when you hit # you have to type an additional character such that Vim knows what to do.

You can disable these mapping by setting the following variable into your init.vim file:

let g:vimtex_imaps_disabled = ['b', 'B', 'c', 'f', '/', '-']

That should solve your problem.

But if you fail to prevent them to be created you can delete them by adding a ~/.config/nvim/after/ftplugin/tex.vim with the following content:

~/.config/nvim/after/ftplugin/tex.vim:

iunmap <buffer> #B
iunmap <buffer> #b
iunmap <buffer> #c
iunmap <buffer> #f
iunmap <buffer> #-
iunmap <buffer> #/

edited Oct 10 '23 at 04:22

answered Oct 08 '23 at 12:50

Vivian De Smedt

16,336
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1

Hi I am afraid this doesn't work. I have added an additional comment bellow my question. I can also provide a gif if nothing comes to mind as to what could be causing it. – Maths Wizzard Oct 08 '23 at 12:54
Could you provide the result of the command proposed? It will not solve your problem per se but will give the source of the problem such that a solution could be proposed :-) – Vivian De Smedt Oct 08 '23 at 12:59
1

Of course. When I execute I get No mapping found. – Maths Wizzard Oct 08 '23 at 13:05
1

Add what is the output of :verbose imap #? – Vivian De Smedt Oct 08 '23 at 13:09
1

Hi. Appologies for the delay. I added the above to my init.vim but I still get errors. They are too long for the comment so I have added them to the question. – Maths Wizzard Oct 08 '23 at 21:32
1

I assume for some reason the above command is not dissabling the options – Maths Wizzard Oct 08 '23 at 21:34
I can't reproduce your problem. Could you verify that let g:vimtex_imaps_disabled = ['b', 'B', 'c', 'f', '/', '-'] is in your init.vim command. Can you tell us what is the result of the :echo g:vimtex_imaps_disabled command? – Vivian De Smedt Oct 09 '23 at 17:27
1

Hi, yes I have double checked. When I execute the echo command I get ['b', 'B', 'c', 'f', '/', '-']. – Maths Wizzard Oct 09 '23 at 18:29
Do you have a recent version of vimtex? – Vivian De Smedt Oct 09 '23 at 19:14
1

Yes. I cloned it from github. I can provide video of me doing any ctions you think could help diagnose this. – Maths Wizzard Oct 09 '23 at 22:58
I don't think the video would help. I'll propose you another solution :-) – Vivian De Smedt Oct 10 '23 at 02:43
1

Is the new solution working for you? – Vivian De Smedt Oct 12 '23 at 18:10
1

I am so blind, I didn't see that you updated your answer - I was waiting for a notifcation that you have posted another one. This worked! I am not sure what was going on here. Thank you very much – Maths Wizzard Oct 13 '23 at 10:39
1

Thanks for the feedback :-) – Vivian De Smedt Oct 13 '23 at 12:12

# key causing delay in Neovim

1 Answers1