anchor.diff:  ;
   
   OTHER
  -: . 
  +: .
   ;
   
   HEX
  
positive.code: 
  lexer grammar TinyosLexer;
  
  //Keywords
  @lexer::members {
      public static final int WHITESPACE = 1;
  }
  
  ABSTRACT:           'abstract';
  
negative.code: ;
  
  FLOAT
  : [0-9]+ '.' [0-9]*
  | '.' [0-9]+
  ;
  
  