Question

While trying to process and obtain data from an XML document, I want to obtain a number of records using a single FLWOR expression– I am doing this by using the ‘let’ clause to obtain the data– so I have a number of rows of data.

Eg.

<div id="main">
    <p> Text #1</p>
    <p> Text #2</p>
    <p> Text #3</p>
    <p> Text #4</p>
</div>

Now, I understand how to get the 4 ‘p’ elements — however I would like to also assign a sequence number to each line — viz. I want to obtain the text this way–

 <data>Text #1</data><sequence> Sequence #1</sequence>
 <data>Text #2</data><sequence> Sequence #2</sequence>
 <data>Text #3</data><sequence> Sequence #3</sequence>
 <data>Text #4</data><sequence> Sequence #4</sequence>

Answer 1

There sure is a more elegant way than doing it like this…. but it works:

let $t := <div id="main">
  <p>Text A</p>
  <p>Text B</p>
  <p>Text C</p>
  <p>Text D</p>
</div>
for $pos in $t/p/position()
let $p := $t/p[$pos]
return (
  <data>{ $p/text() }</data>,
  <sequence>Sequence { $pos }</sequence>
)