XML Beautifier for vim?

Question

Is there a vim command or plugin that quickly "beautifies" XML?

I have a file that looks like

<parent><child attr="bla"><subitem>Hello!
</subitem></child>
</parent>

and I want to make it look like

<parent>
  <child attr="bla">
    <subitem>Hello!
    </subitem>
  <child>
<parent>

Answer 1

Using only vim builtins:

First replace all >< with > [newline] < :

:%s/></>\r</g

Then to reindent:

gg=G

These steps give me the right output for your example data.