vim - 更改为缓冲区父目录的简单方法？

Question

如果我的缓冲区列表如下所示:

:ls  1 %a   "Application/PowerModeServer/test/testTimer.cpp" line 1  2      "Application/PowerModeServer/test/fakeClient.cpp" line 0  3      "Application/PowerModeServer/test/fakeVp.cpp" line 0  7      "Application/PowerModeServer/private/IMsgSender.h" line 0  9      "Application/PowerModeServer/private/UdpSocket.h" line 0 17      "Application/PowerModeServer/src/PowerFsm.cpp" line 0 18      "Application/PowerModeServer/src/lua/src/lfunc.h" line 0 19      "Application/PowerModeServer/src/lua/src/lmem.h" line 0 20      "Application/PowerModeServer/src/lua/src/ltable.h" line 0 41      "Application/PowerModeServer/src/PowerModeServer.cpp" line 0 42      "Application/PowerModeServer/src/UdpSocket.cpp" line 0 43      "Application/PowerModeServer/src/Timer.cpp" line 0

what's the easiest way to change vim's current working directory to the parent directory of, say, buffer 19? I'm used to finger-mumbling my way there using:

:cd A<TAB>P<TAB>s<TAB>l<TAB>s<TAB>

but this requires quite a few keystrokes---especially if the completions are ambiguous. I'd like something more concise, like:

:cd ~19

Any recommendations?

EDIT: Added mods suggested by ZyX here since I don't have sufficient points to edit Jeet's answer directly:

function! CdBufWorkingDir(target)
    if empty(a:target)
        let targetdir = expand("%:p:h")
    else
        if a:target =~# '^\~\d'
            let targetdir = fnamemodify(bufname(str2nr(a:target[1:])), ":p:h")
        else
            let targetdir = a:target
        endif
    endif
    execute "cd ".fnameescape(targetdir)
    echo targetdir
endfunction
command! -nargs=? Cdbuf :call CdBufWorkingDir(<q-args>)

Answer 1

我使用这个脚本 http://www.vim.org/scripts/script.php?script_id=1325在我的 .vimrc 中

map <silent> <F3> :call BufferList()<CR>
let g:BufferListWidth = 25     
let g:BufferListMaxWidth = 50

然后按 f3，你可以只使用/filenname + enter

或者您可以使用 :ls <enter> :buffer BufferNumber <enter>如果您不想安装脚本或 map

为了使最后一个更容易，将它添加到您的 .vimrc nmap <F3> :ls<CR>:buffer然后你可以按 f3 并直接输入你想要的缓冲区的编号。