Parsing a plain text file with nodejs and rearranging it into JSON by hand?

Say I have a document like this:

<Section>
  <Some Stuff attribute="something1"/> Some text
  <Some Stuff attribute="something2"/> Some more text
  <Some Stuff attribute="something3"/> Some other text
</Section>

It does not seem to be valid XML, at least that's what I was told. I would now like to go through this document and grab the tags as well as the text and create some new structure from this. I do not want to keep this order, but re-arrange things in a systematic manner. - So I simple parser function (to JSON or so) won't do.

How could I grab / go through all the elements in nodejs and then rearrange them anew?

I would like to find some kind of library with which I can say, e.g.:

Go to the first section, if there are elements, grab what comes after them until the next element comes and so on.

via George Welder