Scraper Scripts "how to loop" (1 Viewer)

[flixx]

Maybe it's to late. Maybe i don't understand the instructions on the Google Code site...

Please can someone help me how to loop though this to set the "language" field in moving pictures:

<movie>
.
.
.

  <fileinfo>
    <streamdetails>
      <audio>
        <channels>2</channels>
        <codec>ac3</codec>
        <language>eng</language>
        <longlanguage>English</longlanguage>
      </audio>
      <audio>
        <channels>2</channels>
        <codec>ac3</codec>
        <language>deu</language>
        <longlanguage>German</longlanguage>
      </audio>
      <audio>
        <channels>2</channels>
        <codec>ac3</codec>
        <language>spa</language>
        <longlanguage>Spanish</longlanguage>
      </audio>
    </streamdetails>
  </fileinfo>
</movie>

I tried to loop that to extract

|English|German|Spanish|

as a result from the longlanguage tags to store this in the "language" field of a movie.

This works:

<parse name="language" input="${file}" xpath="//movie/fileinfo/streamdetails/audio" />
 <set name="movie.language" value="|${language[0].longlanguage}|${language[1].longlanguage}|${language[2].longlanguage}|${language[3].longlanguage}|${language[4].longlanguage}" />

in the "get_details" section of my Ember XML / NFO script. But i'd like to have a clean loop and not such an ugly workaround. Regardless of what i've tried. It didn't work... i know it's me but i don't understand why and where

Pleaseeee..