Printing Siblings in Functions

Wei, Alice J. ajwei at indiana.edu
Sun Mar 2 14:03:29 PST 2008

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Play the video

Hi,

  I have an XQuery as follows:

declare variable $data :=
<ad>
<head type ="main">High School
<lb/>
Diploma &amp; Ring</head>
<head type ="sub">YOURS Through Home Study</head>
<description>
<p>Prepare for GED or College Entrance
<address>
<addressLine>400 N. Interurban Richardson,</addressLine>
<addressLine>Texas 75080</addressLine>
</address>
</p>
<p>
<emph rend ="bold">Texts Purchased by: Departments of Education·Private
Schools·Colleges</emph>
Mail this Coupon NOW. For Persons 18 or Over
<address>
<addressLine>United Schools and Services Dept. M676</addressLine>
<addressLine>Box 1068, Richardson, Texas 75080</addressLine>
</address>
</p>
<p>Please rush FREE information about High School</p>
</description>
</ad>;
declare variable $s := $data/head[contains(upper-case(.),
'SCHOOL')];
declare function local:unique-nodes-by-value($seq as element()*) as
element()*
{
for $d in distinct-values($seq)
let $head := $seq/parent::ad/descendant::head
 return  <ad>{$head[. = $d][1]}</ad>
};
local:unique-nodes-by-value($s)


What I want to do is to extract the entire <head> node and have it ordered by the "content within the first position of the head node,"
However, when I run the script, this is what it gives me:

<?xml version="1.0" encoding="UTF-8"?>
<ad>
   <head type="main">High School
<lb/>
Diploma &amp; Ring</head>
</ad>

 My intended output is as follows:

<ad>
<head type ="main">High School
<lb/>
Diploma & Ring</head>
<head type ="sub">YOURS Through Home Study</head>
</ad>

Have I done something wrong?
 Any suggestion is appreciated.

Alice
======================================================
Alice Wei
MIS 2008
School of Library and Information Science
Indiana University Bloomington
http://x-query.com/mailman/listinfo/talk

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