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Vimscript - get colors programmatically from colorscheme

I am trying to create an autocmd in Vimscript that sets multiple colorscheme attributes the way I want them. In particular, I am trying to make the background NonText

the same color as the normal background.

The problem is I have no idea how to get the background color of the color scheme from vimscript.

Does anyone have any idea?

Edit:

So this is what I am trying to achieve. There are actually a few things:

  • Initially I tried to hide the "~" in front of all non-existent lines. Someone suggested to install it as the same color as the background, so I added the autorun, which made it: hi NonText guifg=bg

    .

  • After that I realized that some colors have a different background color for regular lines and the "non-existent" part of the buffer. This is a problem as my autocmd sets the NonText color to be the same as a normal background, not a special "nonexistent" background.

    Also, I figured that even without the whole "getting rid of the problem ~

    " I didn't like it when the non-existent parts of the buffers had a different color.

Finally, I'm trying to learn about general vim schemas in general, as I'm planning on writing a plugin that will need other tricks like calculating colors from schemas.

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2 answers


There are two approaches here:



  • Use hi NonText

    . Not alone, but with :redir

    , of course. I will not describe this in more detail, because I personally do not like any solution using :redir

    for a number of reasons (they: 1. requires parsing 2. no nested redirects 3. no way to know if a redirect is active).

  • Use synIDattr()

    and hlID()

    :

    let bgcolor=synIDattr(hlID('NonText'), 'bg#')

    will assign something in the form "#rrggbb"

    (just "N"

    in the terminal) to a variable bgcolor

    or -1

    if the background for this group is not defined. You can use this to build a team :hi

    (regular background must be defined in the group Normal

    ).

  • Just use

    hi link NonText Ignore

    ... Works unless your color scheme has overridden the group Ignore

    to actually appear.

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hi NonText guibg=bg

How about this?



EDIT after clarification from OP:

Okey, let go from the start. At the moment, I am adding a plugin to hold the plugin several times until you know the basic settings and the Vim language. The symbols, one of which is the ~

one you are trying to hide, are so called list symbols and can be defined in an option listchars

. What you can see can be seen set listchars?

. They can also be turned on / off (visible or invisible, I mean) with set list

/ set nolist

, or to be turned on / off with set invlist

.

The selection group NonText

is the one that "covers" the display of these symbols, but in fact the way to turn them on or off is through a setting, not by overwriting the background / foreground color of that group. Therefore, my initial confusion is about your intentions. There is also a highlight group SpecialKey

that you may also find interesting as it covers some cases.

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