PureBasic

Iterate over Direct Children with a Specific Tag

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Demonstrates how to iterate over direct children having a specific tag.

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

<root>
    <fruit color="red">apple</fruit>
    <fruit color="green">pear</fruit>
    <veg color="orange">carrot</veg>
    <meat animal="cow">beef</meat>
    <xyz>
        <fruit color="blue">blueberry</fruit>
        <veg color="green">broccoli</veg>
    </xyz>
    <fruit color="purple">grape</fruit>
    <cheese color="yellow">cheddar</cheese>
</root>

PureBasic

IncludeFile "CkXml.pb"

Procedure ChilkatExample()

    success.i = 0

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

    child.i
    numWithTag.i
    i.i

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

    ;  Get the number of direct children having the tag "fruit"
    numWithTag = CkXml::ckNumChildrenHavingTag(xml,"fruit")

    If numWithTag > 0

        For i = 0 To numWithTag - 1
            child = CkXml::ckGetNthChildWithTag(xml,"fruit",i)
            Debug Str(i) + ": " + CkXml::ckTag(child) + " : " + CkXml::ckContent(child)
            CkXml::ckDispose(child)

        Next
        Debug "-----"

        ; Do the same as the above loop, but instead of creating
        ; a new object instance for each child, call GetNthChildWithTag2 to
        ; update the object's reference instead.
        For i = 0 To numWithTag - 1
            ; Navigate to the Nth child.  
            success = CkXml::ckGetNthChildWithTag2(xml,"fruit",i)
            Debug Str(i) + ": " + CkXml::ckTag(xml) + " : " + CkXml::ckContent(xml)
            ; Navigate back up to the parent:
            success = CkXml::ckGetParent2(xml)
        Next
        Debug "-----"
    EndIf



    CkXml::ckDispose(xml)


    ProcedureReturn
EndProcedure