fastest way to do projection in xsl

Hello,

Basicly what im looking for is how to (fastest possible way) do a project
(relational algebra) operation on a long list of relations in xsl

Let's say I have this document

<all>

    <view name="economy">
        <columns>
            <measure name="economy_estimate"/>
            <measure name="economy_actual"/>
            <measure name="responsible"/>
        </columns>
    </view>

    <projects>
        <project>
            <measure name="responsible"> kav </measure>
            <measure name="economy_actual">991233</measure>
            <measure name="economy_estimate">881123</measure>
            <measure name="schedule_actual">123</measure>
            <measure name="schedule_estimate">823</measure>
        </project>
        <project>
            <measure name="responsible"> pjc </measure>
            <measure name="economy_actual">77123123</measure>
            <measure name="economy_estimate">44123123</measure>
            <measure name="schedule_actual">723</measure>
            <measure name="schedule_estimate">923</measure>
        </project>
        ..... 100's of other projects....
    </projects>
</all>

how do I transform this document into something like this with xsl
The order between measures is as defined in the view part, ie (estimate
before actual) before responsible

<projects>
  <project>
    <measure name="economy_estimate">881123</measure>
    <measure name="economy_actual">991233</measure>
    <measure name="responsible"> kav </measure>
  </project>
  <project>
    <measure name="economy_estimate">44123123</measure>
    <measure name="economy_actual">77123123</measure>
    <measure name="responsible"> pjc </measure>
  </project>
</projects>


regards
  Kasper




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