Sorting on Multiple Elements

[Gadrin]

is it possible to sort a node-set on multiple elements or attributes using XMLStarlet ?

you wouldn't happen to have a sample command line example ?

Thanks, Gadrin

[Mikhail Grushinskiy]

For an input XML

<x>
    <a p='1'>1</a>
    <t p='2'>4</t>
    <t p='1'>3</t>
    <b>2</b>
</x>

you cound apply a stylesheet

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:for-each select="x/*">
<xsl:sort select="name()"/>
<xsl:sort select="@p"/>
<xsl:value-of select="."/>
<xsl:value-of select="'&#10;'"/>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

to print

1
2
3
4

I can see a problem with 'select' option. It should have allowed something like this:

xml sel -C -t -m "x/*" -s A:T:U "name()" -s A:N:L "@p" -v . -n to-sort.xml

Unfortunately currently it allows only one -s (--sort) after
-m. I would say it is a bug and should be fixed in next release.

Thanks,
--MG

[Giles Cope]

You could concaternate the values that you'd like to sort on for text (with a deliminator), though this would not work for numbers.

xml ls | xml sel -t -m &quot;//f&quot; -s A:N:U &quot;concat(@a,concat('|',@m))&quot; -c &quot;.&quot;