anchor.diff:    // link and image
     //
   
  -  // TODO support for html and autolinks
     Parser linkWhitespace = (blankline > whitespace) | whitespace;
     Parser get linkInline => (char('(') > (
         (
  
positive.code:   CommonMarkParser();
  
    Map<String, Target> _references;
  
    Map<String, Target> get references => _references; // TODO remove later
  
    Document parse(String s) {
      // TODO separate preprocess option
  
negative.code:       List<Block> innerBlocks;
        if (s == "\n" && blocks.length == 0) {
          // Test for empty items
          blocks = [new Plain(new _UnparsedInlines(""))];
          buffer = [];
          return;
        }
  