frandsoh · August 25, 2020 21:11 · Aug 25, 2020
diff --git a/nvim-coc.md b/nvim-coc.md
@@ -0,0 +1,61 @@
+# coc completion keymap
+
+```vim
+" Function to check if character before cursor is a " " (empty) or not
+function! s:check_back_space() abort
+  let col = col('.') - 1
+  return !col || getline('.')[col - 1]  =~# '\s'
+endfunction
+
+let g:coc_snippet_next = '<C-j>'
+let g:coc_snippet_prev = '<C-k>'
+
+"""" <TAB>
+inoremap <silent><S-Space> <C-o>l
+inoremap <silent><expr> <TAB>
+      \ pumvisible() ? "\<C-n>" :
+      \ coc#expandableOrJumpable() ? "\<C-r>=coc#rpc#request('doKeymap', ['snippets-expand-jump',''])\<CR>" :
+      \ <SID>check_back_space() ? "\<TAB>" :
+      \ coc#refresh()
+
+
+
+"""" <S-TAB>
+inoremap <expr><S-TAB>
+      \ pumvisible() ? "\<C-p>" : "\<C-O>b"
+
+"""" <C-SPACE>
+
+    inoremap <silent><expr> <c-space>
+      \ pumvisible() ? coc#_select_confirm() :
+      \ coc#expandableOrJumpable() ? "\<C-r>=coc#rpc#request('doKeymap', ['snippets-expand-jump',''])\<CR>" :
+      \ <SID>check_back_space() ? "\<SPACE>" :
+      \ coc#refresh()
+
+"""" <SPACE>
+
+  if exists('*complete_info')
+    inoremap <silent><expr> <space>
+          \ complete_info()["selected"] == "-1" ? "\<SPACE>" :
+          \ coc#expandableOrJumpable() ? "\<C-r>=coc#rpc#request('doKeymap', ['snippets-expand-jump',''])\<CR>" :
+          \ "\<SPACE>"
+    " inoremap <silent><expr> <BS>
+    "       \ complete_info()["selected"] != "-1" ? "\<C-E>" :
+    "       \ "\<C-g>u\<BS>"
+  endif
+
+"""" snippet select
+  vmap <C-j> <Plug>(coc-snippets-select)
+
+"""" <CR>
+  " Use <cr> to confirm completion, `<C-g>u` means break undo chain at current
+  " position. Coc only does snippet and additional edit on confirm.
+  " <cr> could be remapped by other vim plugin, try `:verbose imap <CR>`.
+
+  if exists('*complete_info')
+    "if something from the pum is selected confirm with Enter key
+    inoremap <expr><cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"
+  else
+    inoremap <expr><cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
+  endif
+```