Re: [xsl] Figuring out for-group-by

[Barry Lay <blay@xxxxxxxxxxxxxxxxxxx>]

I am getting a little closer.  I have managed to pull out more-or-less 
what I am after with

<xsl:value-of select="current-group()/key[string() = 
'Kind']/following-sibling::string[1][string() = 'Apple Lossless audio 
file']/preceding-sibling::key[string() = 'Track 
ID']/following-sibling::integer[1]"/>

but I am concerned that the various keys may not always be in this order 
so the "preceding-sibling" search may not work.  I can see that I can 
use for-each with current-group to iterate through the sets of keys so 
that may be more efficient than chasing up and down the tree.

Barry Lay wrote:

> I am running into trouble doing a transform with for-group-by.  I am 
> currently running Saxon 7.9.1 and am in the process of upgrading to 
> 8.0.  I thought I would post what I am up to in case my approach is 
> wrong.
>
> I have an XML file that looks like this:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <plist version="1.0">
> <dict>
>    <key>Major Version</key><integer>1</integer>
>    <key>Minor Version</key><integer>1</integer>
>    <key>Application Version</key><string>4.6</string>
>    <key>Music 
> Folder</key><string>file://localhost/Volumes/120%20GB/Music/iTunes/iTunes%20Music/</string> 
>
>    <key>Library Persistent ID</key><string>4AB531F8615308F0</string>
>    <key>Tracks</key>
>    <dict>
>        <key>35</key>
>        <dict>
>            <key>Track ID</key><integer>35</integer>
>            <key>Name</key><string>Last Time</string>
>            <key>Artist</key><string>Fuel</string>
>            <key>Album</key><string>Something Like Human</string>
>            <key>Genre</key><string>Rock</string>
>            <key>Kind</key><string>AIFF audio file</string>
>            <key>Size</key><integer>39233574</integer>
>             <!-- more key-value pairs -->
>        </dict>
>         <!-- more dict groups -->
>    </dict>
> </dict>
> </plist>