title: VIM: how to set "errorformat" in my specified error message format?
body: <p>In my system, we re-formatted all the build error message to have this format:</p>
  
  <pre><code>[2016-02-10 13:17:56.885597]    [WARNING]   [53171] [src/root/mylinux/test01.cpp:300]
  </code></pre>
  
  <p>As you could see, this format contain several parts:</p>
  
  <pre><code>1. The time stamp, day+hour+minute+second+microsecond
  2. Some spaces and the [WARNING] or [ERROR] or [INFO] or [DEBUG], etc.
  3. A process ID number like [53171]
  4. The source file name + line number
  </code></pre>
  
  <p>I wish to use vim+quickfix to open this build error file, and navigate to source files+line number. So how to set 'errorformat' string in my .vimrc?</p>
  
  <p>Thanks a lot.</p>