title: Using a Regex Pattern that finds Abbrevations
body: <p>I am looking through volumes of data and need to identify certain patterns one of which is abbreviations. The basic rules to identify them in the content I am going through is</p>
  
  <ul>
  <li>They are all is capital letters.</li>
  <li>They are separated by dots.</li>
  <li>They may be one or more alphabets</li>
  <li>They may or may not end with a dot.</li>
  <li>I am looking at individual words therefore looking for multiple occurrences in the string is not required.</li>
  </ul>
  
  <p>Examples
  U.S., U.S, U.S.S.R., V.</p>
  
  <p>Can someone help construct a regex search pattern for me?</p>
  
  <p>Many thanks
  MS</p>