Hello everyone, I've recently been charged with the task of manipulating some XHTML (XML compliant HTML). I've gotten a hang of changing certain fields with the attr function, but I'm having trouble inserting new fields into the existing tree.

For example, lets say my XHTML looks like this:
<html>
 <body>
   What is Foo?
 </body>
</html>

Now let's say I wanted to do two things. One is to insert a form tag which would make anything that is currently the child of 'body', to be a child of 'form' and make 'form' a child of 'body'. This can be done like this:

my $xml = XML::Twig->new(
              twig_roots => { 
                  'body' => \&insert_form_tags, 
              },
          );
$xml->parsefile('index.html');
$xml->print;

sub insert_form_tags() {
    my ($t, $body) = @_;
    $body->insert(
        form => {
            method => "Post",
            action => "submit.cgi"
            },
        );
}

The outputted XHTML will have the form tags inserted.
<html>
 <body>
  <form method="Post" action="submit.cgi">
   What is Foo?
  </form>
 </body>
</html>

However, the other thing I'd like to do is insert a stand alone field. Something with no children. In the case of this example, insert a form field <input type="text" /> right after form. Notice the ending / in the tag. (So the text 'What is Foo?' is not a child of the input tag.

I'd like my html to look like this:
<html>
 <body>
  <form method="Post" action="submit.cgi">
   <input type="text" name="foo_is" />
   What is Foo?
  </form>
 </body>
</html>

Can someone help me with the code to do this? I've looked at much XML::Twig documentation but haven't found any examples of people needing to do this (although I'm sure it's a common practice).

All help greatly appreciated.

- Nick

In reply to XHTML with XML::Twig - tree manipulation problem by nick

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