" plugins: neocomplete
let g:neocomplete#enable_at_startup = 1
let g:neocomplete#enable_smart_case = 1
"" <CR>: close popup and save indent.
inoremap <silent> <CR> <C-r>=<SID>my_cr_function()<CR>
function! s:my_cr_function()
  return (pumvisible() ? "\<C-y>" : "" ) . "\<CR>"
endfunction
"" <TAB>: completion.
inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"