yank_filename_mapping.vim

if exists("g:loaded_nerdree_yank_filename_mapping")
  finish
endif
let g:loaded_nerdree_yank_filename_mapping = 1

call NERDTreeAddKeyMap({
      \ 'key':           'Y',
      \ 'callback':      'NERDTreeYankFilename',
      \ 'quickhelpText': 'Yank filename to unnamed register',
      \ })

function! NERDTreeYankFilename()
  let current_node = g:NERDTreeFileNode.GetSelected()

  if current_node == {}
    return
  else
    let @" = fnamemodify(current_node.path.str(), ':t')
  endif
endfunction