anchor.diff:    TOKEN
   ;
   
  -attributes:
  +cat_attributes_attr:
     CAT_ATTR_SEP ATTRIBUTES_ATTR VAL_ASSIGN QUOTE attributes_names QUOTE
   ;
   attributes_names:
  
positive.code: @lexer::header {
    package be.edmonds.occi;
  }
  // ----------------------------------------
  // ---------- All OCCI Headers ------------
  // ----------------------------------------
  
negative.code:   CATEGORY_HEADER category_header_val
  ;
  category_header_val:
    term_attr scheme_attr class_attr (title_attr | rel_attr | location_attr | cat_attributes_attr)*
  ;
  term_attr:
    TOKEN
  