(PowerShell) Compress XML Tree

Demonstrates how to compress and restore the entire subtree rooted at an XML node.

The input XML, available at http://www.chilkatsoft.com/data/compress2.xml, is this:

<root>
    <lazydog>
        <fox>The quick brown fox jumps over the lazy dog</fox>
    </lazydog>
    <fox>The quick brown fox jumps over the lazy dog</fox>
    <child>
        <grandchild>The quick brown fox jumps over the lazy dog</grandchild>
    </child>
    <child>
        <grandchild>The quick brown fox jumps over the lazy dog</grandchild>
    </child>
</root>

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

$xml = New-Object Chilkat.Xml

# The sample input XML is available at http://www.chilkatsoft.com/data/compress2.xml
$success = $xml.LoadXmlFile("compress2.xml")
if ($success -ne $true) {
    $($xml.LastErrorText)
    exit
}

# Zip compress the root node's entire subtree:
$success = $xml.ZipTree()

# Examine the new XML document:
$($xml.GetXml())

# This is the XML w/ the compressed subtree in Base64 encoded format:

# <root><![CDATA[4+WyKcrPL7Hj5VIAApucxKrKlPx0KBcslJZfYReSkapQWJqZnK2QVJRfnqcAFFPIKs0tKFbIL0st
# UigBSoN0KgC12uiDNECN00c1jyKzkjMyc1KQHZZelJiXAhElyUwkfTBnovDoYZGNPjTUAQ==
# ]]></root>

# Now uncompress and show that the original subtree was restored:
$success = $xml.UnzipTree()
$($xml.GetXml())