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PureBasic Examples

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(PureBasic) 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 PureBasic Module Download

Chilkat PureBasic Module

IncludeFile "CkXml.pb"

Procedure ChilkatExample()

    xml.i = CkXml::ckCreate()
    If xml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success.i
    ;  The sample input XML is available at http://www.chilkatsoft.com/data/compress2.xml
    success = CkXml::ckLoadXmlFile(xml,"compress2.xml")
    If success <> 1
        Debug CkXml::ckLastErrorText(xml)
        CkXml::ckDispose(xml)
        ProcedureReturn
    EndIf

    ;  Zip compress the root node's entire subtree:
    success = CkXml::ckZipTree(xml)

    ;  Examine the new XML document:
    Debug CkXml::ckGetXml(xml)

    ;  This is the XML w/ the compressed subtree in Base64 encoded format:
    ; --1--

    ;  Now uncompress and show that the original subtree was restored:
    success = CkXml::ckUnzipTree(xml)
    Debug CkXml::ckGetXml(xml)


    CkXml::ckDispose(xml)


    ProcedureReturn
EndProcedure

 

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