title: Lua string.gsub with Multiple Patterns
body: <p>I am working on renaming the Movie titles that has unwanted letters. The <code>string.gsub</code> can replace a string with "" nil value but I have around 200 string patterns that need to be replaces with "".</p>
  
  <p>Right now I have to <code>string.gsub</code> for every pattern. I was thinking is there is a way to put all the string patterns in to single <code>string.gsub</code> line. I have searched around the web for the solution but still didn't got anything.</p>
  
  <p>The movie title is like this <code>B.A.Pass 2013 Hindi 720p DvDRip CROPPED AAC x264 RickyKT</code>
  and I want to remove the extra characters like <code>2013</code>, <code>Hindi</code>, <code>720p</code>, <code>DvDRip</code>, <code>CROPPED</code>, <code>AAC</code>, <code>x264</code>, <code>RickyKT</code>.</p>