let g:deoplete#enable_at_startup = 1
if !exists('g:deoplete#omni#input_patterns')
  let g:deoplete#omni#input_patterns = {}
endif

" <C-h>, <BS>: close popup and delete backword char.
inoremap <expr><C-h> deoplete#smart_close_popup()."\<C-h>"
inoremap <expr><BS>  deoplete#smart_close_popup()."\<C-h>"

" <CR>: close popup and save indent.
inoremap <silent> <CR> <C-r>=<SID>my_cr_function()<CR>
function! s:my_cr_function() abort
	return deoplete#close_popup() . "\<CR>"
endfunction

inoremap <silent><expr> <TAB> 
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ "\<C-x><C-o>"

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