Emmet.vim function

gistfile1.vim

" Remapping <C-y>, just doesn't cut it.
" This is a bit better and works for 
" angular directives or web components

function! s:expand_html_tab()
  " try to determine if we're within quotes or tags.
  " if so, assume we're in an emmet fill area.
  let line = getline('.')
  if col('.') < len(line)
    let line = matchstr(line, '[">][^<"]*\%'.col('.').'c[^>"]*[<"]')

    if len(line) >= 2
      return "\<C-y>n"
    endif
  endif

  " go to next item in a popup menu.
  " this will insert a snippet if it's selected in the menu
  " due to neosnippets being the first check.
  if pumvisible()
    return "\<C-n>"
  endif

  " expand anything emmet thinks is expandable.
  " I'm not sure anything happens below this block.
  if emmet#isExpandable()
    return "\<C-y>,"
  endif

  " return a regular tab character
  return "\<tab>"
endfunction

autocmd FileType html imap <buffer><expr><tab> <sid>expand_html_tab()