title: Parsing file with custom tags
body: <p>I am having file with structure something like this</p>
  
  <pre><code>&lt;review&gt;
  &lt;unique_id&gt;
  6301968972:just_as_true_today!:gary_d._thomas_"brass_crass"
  &lt;/unique_id&gt;
  &lt;unique_id&gt;
  5139
  &lt;/unique_id&gt;
  &lt;asin&gt;
  6301968972
  &lt;/asin&gt;
  &lt;product_name&gt;
  Hucksters: Video: Clark Gable,Deborah Kerr,Sydney Greenstreet,Adolphe Menjou,Ava Gardner,Keenan Wynn,Edward Arnold,Aubrey Mather,Richard Gaines,Frank Albertson,Douglas Fowley,Clinton Sundberg,Gloria Holden,Connie Gilchrist,Kathryn Card,Lillian Bronson,Vera Marshe,Ralph Bunker,Virginia Dale,Jimmy Conlin,Jack Conway
  &lt;/product_name&gt;
  &lt;product_type&gt;
  video
  &lt;/product_type&gt;
  &lt;product_type&gt;
  video
  &lt;/product_type&gt;
  &lt;helpful&gt;
  1 of 1
  &lt;/helpful&gt;
  &lt;rating&gt;
  5.0
  &lt;/rating&gt;
  &lt;title&gt;
  Just as true today!
  &lt;/title&gt;
  &lt;date&gt;
  August 4, 2000
  &lt;/date&gt;
  &lt;reviewer&gt;
  Gary D. Thomas "Brass Crass"
  &lt;/reviewer&gt;
  &lt;reviewer_location&gt;
  Studio City, CaliforniA
  &lt;/reviewer_location&gt;
  &lt;review_text&gt;
  Picture this: Clark Gable and the whole passle of MGM stars and starlets!  Spins a great story, and all this in 1947, could be today, except they  dressed better. You will not forget the characterizations, especially  Sydney Greenstreet, eat your heart out Eddie Murphy, just a marvy little  film for all ages (God I love cliches!
  &lt;/review_text&gt;
  &lt;/review&gt;
  </code></pre>
  
  <p>and I want it to parse and convert this to datadframe. What are some easy ways to do this?</p>
  
  <p>I have tried XML and HTML parsers but no lucks.
  The file contains repetitions of the snippet above,
  If there exists any library out there, please mention it.</p>
  
  <p>Thanks</p>