在.vimrc中运行shell脚本(并处理输出)

时间:2010-02-20 16:36:07

标签: vim shell

我正在尝试从.vimrc文件中运行一个shell脚本(脚本中标记了三个问题):

function! CheckMe(file)
    let shellcmd = 'checkme '.a:file

    " Start the command and return 0 on success.
    " XXX: How do you evaluate the return code?
    execute '!'.shellcmd
    if !result
        return 0
    endif

    " Ending up here, the command returned an error.
    " XXX: Where to you get the output?
    let pair = split(output, '\S')
    let line = pair[0]
    let char = pair[1]

    " Jump to the errenous column and line.
    " XXX: Why does this not work?
    normal '/\%'.line.'l\%'.char.'c'
    return 1
endfunction

总而言之,如何获得脚本的结果/输出,以及为什么跳转语句不起作用?

其他详情:

  • shell脚本在成功时返回0,在失败时返回1。如果失败,脚本会将两个数字(行号和列号)打印到stdout,并以空格字符分隔。
  • 根据Vim docs,“普通”关键字的参数是“按类型执行”,但显然情况并非如此。当我输入它时(在正常命令模式下,没有前导':')它工作正常,但在脚本中没有(“E78:未知标记”)。

2 个答案:

答案 0 :(得分:6)

function! CheckMe(file)
    let shellcmd = 'checkme '.a:file

    let output=system(shellcmd)
    if !v:shell_error
        return 0
    endif

    " Are you sure you want to split on non-blanks? This 
    " will result in list of blank strings.
    " My variant:
    let [line, char]=split(output)

    " Normal is not an execute: this is what it will do:
    " «'/» means «Go to mark /», produces an error E78 because /
    " is not a valid symbol for mark. Than normal stops after error occured.
    " If you need to use variables in nomal use «execute 'normal '.ncmd».
    " And you can not use «normal» to perform search
    execute '/\%'.line.'l\%'.char.'c'
    " or
    call setpos('.', [0, line, char, 0])
    return 1
endfunction
  

根据Vim文档,“普通”关键字的参数是“像打字一样执行”,但显然情况并非如此。我键入它时工作正常(在正常命令模式下,没有前导':'),但在脚本中没有(“E78:未知标记”)。

只需输入«'/»即可收到此错误。

答案 1 :(得分:6)

我认为你想使用system() function而不是! shell命令。

从链接页面:

The result is a String.  Example:
            :let files = system("ls " .  shellescape(expand('%:h')))

The resulting error code can be found in |v:shell_error|.

因此,output来自系统调用的结果,result来自v:shell_error。然后你的跳跃应该有效。