title: text - find all lines without the specific expression
body: <p>how can i find all lines in text file, which do not(!) fit this pattern:</p>
  
  <p><code>xxx-xx-xxx.xxx</code> </p>
  
  <p>(no matter the lenght of each part; 'x' can be any char)</p>
  
  <p>i can find lines with this pattern by searching the regular expression <code>^(.*-.*-.*\.+.*)$</code> (using EmEditor),</p>
  
  <p>but i couldnt find a way to find the negative case.</p>
  
  <p>thanks!</p>