code: function( input ) {
  
  		if ( input == null ) {
  
  			input = this.result;
  
  		}
  		 	this.result = input;
  
  		  this.alphaNum(this.result);
  
  			this.halfSpace( this.result );
  
  			this.removeArabicChar( this.result );
  
  			return this;
  
  		}
docs: ********************************************************************
  Convert inputs to valid persian format with all options
  **********************************************************************
  @since 08 July 2015
  @var input string
  @return string