Coc config changes

.config/nvim/coc.vim

@@ -15,17 +15,24 @@ else
 endif
 
 " 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>
-      \ pumvisible() ? "\<C-n>" :
-      \ <SID>check_back_space() ? "\<TAB>" :
+      \ coc#pum#visible() ? coc#pum#next(1) :
+      \ CheckBackspace() ? "\<Tab>" :
       \ coc#refresh()
-inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
+inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"
 
-function! s:check_back_space() abort
-    let col = col('.') - 1
-    return !col || getline('.')[col - 1]  =~ '\s'
+" 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 <c-space> to trigger completion.
@@ -145,19 +152,6 @@ command! -nargs=0 OR   :call     CocActionAsync('runCommand', 'editor.action.org
 set statusline=%f\ %h%w%m%r%=%{coc#status()}%{get(b:,'coc_current_function','')}\ %(%l,%c%V\ %=\ %P%)
 
 " Mappings for CoCList
-" Show all diagnostics.
 nnoremap <silent><nowait> <leader>d  :<C-u>CocList diagnostics<cr>
-" Manage extensions.
-" nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
-" Show commands.
-" nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
-" Find symbol of current document.
-" nnoremap <silent><nowait> <space>o  :<C-u>CocList --normal outline<cr>
-" Search workspace symbols.
-" nnoremap <silent><nowait> <space>s  :<C-u>CocList -I symbols<cr>
-" Do default action for next item.
-" nnoremap <silent><nowait> <space>j  :<C-u>CocNext<CR>
-" Do default action for previous item.
-" nnoremap <silent><nowait> <space>k  :<C-u>CocPrev<CR>
-" Resume latest coc list.
-" nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>
+nnoremap <silent><nowait> <leader>f  :<C-u>CocList files<cr>
+nnoremap <silent><nowait> <leader>s  :<C-u>CocList grep<cr>

.vimrc

@@ -3,10 +3,10 @@ call plug#begin('~/.vim/plugged')
 
 " IDE: Coc, Conquer of completion. Requires nodejs.
 Plug 'neoclide/coc.nvim', {'branch': 'release',
-            \ 'for': ['rust', 'tex', 'markdown', 'typescript', 'solidity'],
-            \ 'on': 'CocInfo',
-            \ 'do': ':CocInstall coc-rust-analyzer coc-ltex coc-tsserver coc-solidity',
-            \ }
+  \ 'for': ['rust', 'tex', 'markdown', 'typescript', 'solidity'],
+  \ 'on': 'CocInfo',
+  \ 'do': ':CocInstall coc-rust-analyzer coc-ltex coc-tsserver coc-solidity coc-lists',
+  \ }
 autocmd! User coc.nvim source ~/.config/nvim/coc.vim
 
 " Theme: