trying to toggle off only if the buffer is readonly

[sicr0]

To avoid having the plug-in activated in all files except :help buffers or NERDTree I put this snippet in the .vimrc

augroup rainbow
  autocmd!
  autocmd FileType * if &readonly | RainbowParentheses | RainbowParentheses!
augroup END

Unfortunatly I'm not skilled with VimScript and it does not work. Could you please help me?

[sheldond]

Hi sicr0,

This might work:

augroup rainbow
  autocmd!
  autocmd FileType * if &readonly | RainbowParentheses! | else | RainbowParentheses | endif
augroup END

Or alternatively this:

augroup rainbow
  autocmd!
  autocmd FileType * RainbowParentheses
  autocmd FileType help,nerdtree RainbowParentheses!
augroup END

[satish-chef]

I get this error when using this plugin and this snippet on Mac. Can someone please help:

augroup rainbow
  autocmd!
  autocmd FileType * if &readonly | RainbowParentheses! | else | RainbowParentheses | endif
augroup END

Error detected while processing BufRead Autocommands for "*/etc/passwd"..FileType Autocommands for "*":
E492: Not an editor command: RainbowParentheses

[sicr0]

I use this code now and it works partially.

augroup rainbow
  autocmd!
  let ignore = [ 'help', 'nerdtree', 'tagbar' ]
  autocmd WinEnter,BufEnter,BufWinEnter,TabEnter * if index(ignore, &filetype) < 0 | RainbowParentheses | else | RainbowParentheses! | endif
augroup END

It still presents a problem that I cannot solve. When opening NERDTree for the first time it shows square brackets surrounding the icons. If you close and open NERDTree again they disappear. I don't know why but it is a bit annoying.

[sicr0]

I get this error when using this plugin and this snippet on Mac. Can someone please help:

augroup rainbow
  autocmd!
  autocmd FileType * if &readonly | RainbowParentheses! | else | RainbowParentheses | endif
augroup END

Error detected while processing BufRead Autocommands for "*/etc/passwd"..FileType Autocommands for "*":
E492: Not an editor command: RainbowParentheses

Are you sure you have the plugin installed?

[satish-chef]

@sicr0 I think I have the plugin installed. Below is the output when i run vim +PlugInstall on my Mac:

  Updated. Elapsed time: 0.037616 sec.                         |
  [====]                                                       |~
                                                               |~
  - Finishing ... Done!                                        |~
  - rainbow_parentheses.vim: Already installed                 |~
  - rainbow: Already installed                                 |~
  - vim-go: Already installed                                  |~
  - coc.nvim: Already installed                                |~

Below is the content if my ~/.vimrc file:

" Specify a directory for plugins
" - For Neovim: stdpath('data') . '/plugged'
" - Avoid using standard Vim directory names like 'plugin'
call plug#begin('~/.vim/autoload')

" Make sure you use single quotes

" Shorthand notation; fetches https://github.com/junegunn/vim-easy-align
Plug 'junegunn/vim-easy-align'

" Any valid git URL is allowed
Plug 'https://github.com/junegunn/vim-github-dashboard.git'

" Multiple Plug commands can be written in a single line using | separators
Plug 'SirVer/ultisnips' | Plug 'honza/vim-snippets'

" On-demand loading
Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }
Plug 'tpope/vim-fireplace', { 'for': 'clojure' }

" Using a non-default branch
Plug 'rdnetto/YCM-Generator', { 'branch': 'stable' }

" Using a tagged release; wildcard allowed (requires git 1.9.2 or above)
Plug 'fatih/vim-go', { 'tag': '*' }

" Plugin options
Plug 'nsf/gocode', { 'tag': 'v.20150303', 'rtp': 'vim' }

" Plugin outside ~/.vim/plugged with post-update hook
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }

" Unmanaged plugin (manually installed and updated)
Plug '~/my-prototype-plugin'

" Initialize plugin system
call plug#end()

call plug#begin('~/.vim/plugged')

" < Other Plugins, if they exist >

Plug 'fatih/vim-go'
call plug#end()

call plug#begin('~/.vim/plugged')

" < Other Plugins, if they exist >

Plug 'fatih/vim-go'
Plug 'neoclide/coc.nvim', {'do': 'yarn install --frozen-lockfile'}
call plug#end()


" -------------------------------------------------------------------------------------------------
" coc.nvim default settings
" -------------------------------------------------------------------------------------------------

" if hidden is not set, TextEdit might fail.
set hidden
" Better display for messages
set cmdheight=2
" Smaller updatetime for CursorHold & CursorHoldI
set updatetime=300
" don't give |ins-completion-menu| messages.
set shortmess+=c
" always show signcolumns
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

" Use <c-space> to trigger completion.
inoremap <silent><expr> <c-space> coc#refresh()

" Use `[c` and `]c` to navigate diagnostics
nmap <silent> [c <Plug>(coc-diagnostic-prev)
nmap <silent> ]c <Plug>(coc-diagnostic-next)

" Remap keys for gotos
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

" Use U to show documentation in preview window
nnoremap <silent> U :call <SID>show_documentation()<CR>

" Remap for rename current word
nmap <leader>rn <Plug>(coc-rename)

" Remap for format selected region
vmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)
" Show all diagnostics
nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
" Manage extensions
nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
" Show commands
nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
" Find symbol of current document
nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
" Search workspace symbols
nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
" Do default action for next item.
nnoremap <silent> <space>j  :<C-u>CocNext<CR>
" Do default action for previous item.
nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
" Resume latest coc list
nnoremap <silent> <space>p  :<C-u>CocListResume<CR>

" disable vim-go :GoDef short cut (gd)
" this is handled by LanguageClient [LC]
let g:go_def_mapping_enabled = 0

Plug 'luochen1990/rainbow'
let g:rainbow_active = 1 "set to 0 if you want to enable it later via :RainbowToggle

Plug 'junegunn/rainbow_parentheses.vim'

let g:rainbow#max_level = 16
let g:rainbow#pairs = [['(', ')'], ['[', ']']]

I searched on google for the error Not an editor command: RainbowParentheses but did not find anything that resolves this issue.