RegEx - Regular Expression for single operator matching,  default : <pre>^[\\+\\-\\*/%&amp;|\\^~&lt;&gt;!]</pre> including <pre>@</pre> on Python 3</li>
      <li>singleDelimiters - RegEx - Regular Expression for single delimiter matching, default :  <pre>^[\\(\\)\\[\\]\\{\\}@,:`=;\\.]</pre></li>
      <li>doubleOperators - RegEx - Regular Expression for double operators matching, default : <pre>^((==)|(!=)|(&lt;=)|(&gt;=)|(&lt;&gt;)|(&lt;&lt;)|(&gt;&gt;)|(//)|(\\*\\*))</pre></li>
      <li>doubleDelimiters