Can't get the plugin to work

[ybbuc]

Describe the bug
Using the Neovim 0.7.2 and the latest treesitter, I cannot get it to color anything.

Steps to reproduce
Install plugin and configure, then nothing. See dotfiles

Expected behavior
Coloring nested enclosing characters like {{}}

Screenshots

[p00f]

Also paste the text

[p00f]

It doesn't look like you require your plugins file? Does :PackerStatus show nvim-ts-rainbow?

[ybbuc]

It doesn't work for any text, not just that text. I can just write a bunch of curly brackets in a lua file and get nothing.

[ybbuc]

Here's some nested tex code that should use the rainbow: \lim_{t\to0}\frac{1}{\sqrt{t^{2}+9}+3}

[p00f]

works for me

Can't reproduce, sorry. I'll keep this open so that someone who has this issue can help

[cathaysia]

load plugins by this order:

1. this plugin
2. bufferline
3. colorschema

this plugins will not work when

1. this plugin
2. colorschema
3. bufferline

[cathaysia]

emm, It's weird that it doesn't work in my first Buffer, but the second one works fine. But like I said above, tweaking Bufferline and colorschema has a chance to make this plugin work

[ybbuc]

@cathaysia Appreciate the suggestion, but no dice. I wonder if it's because I'm not using Neovim nightly.

[kostafey]

Can reproduce for both NVIM v0.7.2 and NVIM v0.8.0-dev+1027-g4bf005e9f.
plugins.lua:

vim.cmd [[packadd packer.nvim]]

return require('packer').startup(function(use)
  -- Packer can manage itself
  use 'wbthomason/packer.nvim'

  use 'nvim-treesitter/nvim-treesitter'
  require("nvim-treesitter.configs").setup {
    ensure_installed = { "c", "lua", "rust", "java", "clojure" },
     -- Automatically install missing parsers when entering buffer
    auto_install = true,
    highlight = {        
	    enable = true,
      additional_vim_regex_highlighting = false,
    },
    rainbow = {
      enable = true,
      extended_mode = true, -- Also highlight non-bracket delimiters like html tags, boolean or table: lang -> boolean
      max_file_lines = nil, -- Do not enable for files with more than n lines, int
      colors = {"#666666", "#5544EE", "#2265DC", "#00A89B", "#229900", "#999900", "#F57900", "#EE66E8"}, -- table of hex strings
      -- termcolors = {} -- table of colour name strings
    }
  }
  -- Colorscheme
  use 'kostafey/organicgreen.nvim'
  vim.cmd[[colorscheme organicgreen]]
end)

:PackerStatus

                packer.nvim - Total plugins: 7
 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 • neovim-session-manager
 • notifier.nvim
 • nvim-colorizer.lua
 • organicgreen.nvim
 • packer.nvim
 • plenary.nvim
 • telescope.nvim

No highlight brackets:

[adoyle-h]

If you defined {colors = { "#cc241d", "#a89984" }, termcolors = {}}, you can't reproduce the issue. Because there are seven colors and termcolors in default config.

nvim-ts-rainbow/lua/rainbow.lua

Lines 29 to 46 in c641e22

	colors = {
	"#cc241d",
	"#a89984",
	"#b16286",
	"#d79921",
	"#689d6a",
	"#d65d0e",
	"#458588",
	},
	termcolors = {
	"Red",
	"Green",
	"Yellow",
	"Blue",
	"Magenta",
	"Cyan",
	"White",
	},

If you defined colors more than seven,

colors = { "#cc241d", "#a89984", "#b16286", "#d79921", "#689d6a", "#d65d0e", "#458588", "#005f87" },
termcolors = {},

Or colors' length more than termcolors',

colors = { "#cc241d", "#a89984"},
termcolors = { 3 },

then the issue can be reproduced.

nvim-ts-rainbow/lua/rainbow/internal.lua

Lines 160 to 166 in c641e22

	local s = string.format(
	"highlight default rainbowcol%d guifg=%s ctermfg=%s",
	i,
	colors[i],
	termcolors[i]
	)
	vim.cmd(s)

When termcolors[i] is nil, setting highlight group will fail.

[kostafey]

adoyle-h looks like I'm doing something completely wrong. But I can't enable plugin for seven colors too. The same story if I remove colors and termcolors lines from config at all.

nvim --version
NVIM v0.8.0-dev+1027-g4bf005e9f

:PackerStatus

                packer.nvim - Total plugins: 2
 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 • nvim-treesitter
 • packer.nvim

The total config for test case:
~/.config/nvim/init.vim:

lua require('plugins')

~/.config/nvim/lua/plugins.lua:

vim.cmd [[packadd packer.nvim]]

return require('packer').startup(function(use)
  -- Packer can manage itself
  use 'wbthomason/packer.nvim'

  use 'nvim-treesitter/nvim-treesitter'
  -- use 'p00f/nvim-ts-rainbow'
  require("nvim-treesitter.configs").setup {
    ensure_installed = { "c", "lua", "rust", "java", "clojure" },
     -- Automatically install missing parsers when entering buffer
    auto_install = true,
    highlight = {        
	    enable = true,
      -- additional_vim_regex_highlighting = false,
    },
    rainbow = {
      enable = true,
      colors = { 
        "#cc241d", 
        "#a89984", 
        "#b16286", 
        "#d79921", 
        "#689d6a", 
        "#d65d0e", 
        "#458588", 
    }, 
    termcolors = { 
        "Red", 
        "Green", 
        "Yellow", 
        "Blue", 
        "Magenta", 
        "Cyan", 
        "White", 
    },
    }
  }
end)

Result:

[p00f]

use 'p00f/nvim-ts-rainbow is commented out @kostafey

[kostafey]

@p00f oh, really. It works now. Thank you!