anchor.diff:  //                      They comment close is therfore ignored by the CSS parser and we hide
   //                      it from the ANLTR parser.
   //
  -CDC             : '-->' { $channel = 4; }  // CDC on channel 4 in case we want it later
  +CDC             : '-->' { $channel=HIDDEN; }  // CDC on channel 4 in case we want it later
                   ;
                   
   INCLUDES        : '~=' ;
  
positive.code: //                      They comment open is therfore ignored by the CSS parser and we hide
  //                      it from the ANLTR parser.
  //
  CDO             : '<!--' { $channel = 3; }  // CDO on channel 3 in case we want it later
                  ;
      
  // ---------------------            
  
negative.code: //              COMMENTS are hidden from the parser which simplifies the parser 
  //              grammar a lot.
  //
  COMMENT         
      : '/*' ( options { greedy=false; } : .*) '*/' { $channel=HIDDEN; } 
      ;
                  
  LINE_COMMENT    
      : '//' (~('\n'|'\r'|'\f'))* ('\r' | '\r'? '\n' | EOF) { $channel=HIDDEN; }
      ;
  
  // ---------------------
  // HTML comment open.   HTML/XML comments may be placed around style sheets so that they
  