vim techs

yank abs path or relative path in NerdTree

add key mapping yourself

save below as xxx.vim in /path/to/nerdtree/nerdtree_plugin/xxx.vim

yy for abs path of current node, yr for rel path

```{vimscript}
call NERDTreeAddKeyMap({
        \ 'key': 'yy',
        \ 'callback': 'NERDTreeYankFullPath',
        \ 'quickhelpText': 'put full path of current node into the default register' })

function! NERDTreeYankFullPath()
    let n = g:NERDTreeFileNode.GetSelected()
    if n != {}
        call setreg('"', n.path.str())
    endif
    call nerdtree#echo("Node full path yanked!")
endfunction

call NERDTreeAddKeyMap({
        \ 'key': 'yr',
        \ 'callback': 'NERDTreeYankRelativePath',
        \ 'quickhelpText': 'put relative path of current node into the default register' })


function! NERDTreeYankRelativePath()
    let n = g:NERDTreeFileNode.GetSelected()
    if n != {}
        call setreg('"', fnamemodify(n.path.str(), ':.'))
    endif
    call nerdtree#echo("Node relative path yanked!")
endfunction
```

add sth. surround

ys takes a motion or text object, and then the char you want to put surround with

like ysiw" surr current word with "