We assume that opening tags in HTML have form , as with

. More generally, HTML allows optional attributes to be expressed as part of an opening tag. The general form used for expressing an attribute is ; for example, a table can be given a border and additional padding by using an opening tag of . Modify Code Fragment so that it can properly match tags, even when an opening tag may include one or more such attributes.

1   /** Tests if every opening tag has a matching closing tag in HTML string. */
2   public static boolean isHTMLMatched(String html) { 
3       Stack<String> buffer = new LinkedStack<>( );
4       int j = html.indexOf('<'); // find first ’<’ character (if any)
5       while (j != −1) { 
6           int k = html.indexOf('>', j+1); // find next ’>’ character
7           if (k == −1)
8               return false; // invalid tag
9           String tag = html.substring(j+1, k); // strip away < >
10          if (!tag.startsWith("/")) // this is an opening tag
11              buffer.push(tag);
12          else { // this is a closing tag
13              if (buffer.isEmpty( ))
14                  return false; // no tag to match
15              if (!tag.substring(1).equals(buffer.pop( )))
16                  return false; // mismatched tag
17          } 
18          j = html.indexOf('<', k+1); // find next ’<’ character (if any)
19      } 
20      return buffer.isEmpty( ); // were all opening tags matched?
21  }

Write an HTML code segment that shows the minimal HTML document structure for a Web page.