anchor.diff:  	| controlProperties;
   
   cp_SingleProperty 
  -	: WS? cp_PropertyName WS? EQ WS? '$'? literal FRX_OFFSET? NEWLINE+
  +	: WS? implicitCallStmt_InStmt WS? EQ WS? '$'? literal FRX_OFFSET? NEWLINE+
   	;
   
   cp_PropertyName 
  
positive.code:    ;
  
  // atomic call statements ----------------------------------
  argsCall
     : (argCall? WS? (COMMA | SEMICOLON) WS?)* argCall (WS? (COMMA | SEMICOLON) WS? argCall?)*
     ;
  
negative.code: // letters
  
  fragment LETTER
     : [a-zA-Z_äöüÄÖÜáéíóúÁÉÍÓÚâêîôûÂÊÎÔÛàèìòùÀÈÌÒÙãẽĩõũÃẼĨÕŨçÇ]
     ;
  
  
  fragment LETTERORDIGIT
     : [a-zA-Z0-9_äöüÄÖÜáéíóúÁÉÍÓÚâêîôûÂÊÎÔÛàèìòùÀÈÌÒÙãẽĩõũÃẼĨÕŨçÇ]
     ;
  
  // case insensitive chars
  