code: function SyntaxUnit(text, line, col){
  
  
      /**
       * The column of text on which the unit resides.
       * @type int
       * @property col
       */
      this.col = col;
  
      /**
       * The line of text on which the unit resides.
       * @type int
       * @property line
       */
      this.line = line;
  
      /**
       * The text representation of the unit.
       * @type String
       * @property text
       */
      this.text = text;
  
  }
docs: Base type to represent a single syntactic unit.
  @class SyntaxUnit
  @namespace parserlib.util
  @constructor
  @param {String} text The text of the unit.
  @param {int} line The line of text on which the unit resides.
  @param {int} col The column of text on which the unit resides.