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" Use tab for trigger completion with characters ahead and navigate.
" NOTE: There's always complete item selected by default, you may want to enable
" no select by `"suggest.noselect": true` in your configuration file.
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
inoremap <silent><expr> <TAB>
\ coc#pum#visible() ? coc#pum#next(1) :
\ CheckBackspace() ? "\<Tab>" :
\ coc#refresh()
inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"
" Make <CR> to accept selected completion item or notify coc.nvim to format
" <C-g>u breaks current undo, please make your own choice.
inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
\: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"
function! CheckBackspace() abort
let col = col('.') - 1
return !col || getline('.')[col - 1] =~# '\s'
endfunction
" Use K to show documentation in preview window.
nnoremap <silent> H :call ShowDocumentation()<CR>
function! ShowDocumentation()
if CocAction('hasProvider', 'hover')
call CocActionAsync('doHover')
else
call feedkeys('H', 'in')
endif
endfunction
" Highlight the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')
" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)
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