PureBasic

Find Direct Child with Specific Tag

See more XML Examples

Demonstrates how to find a direct child 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

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

    ; Find the direct child node having the tag "meat", and 
    ; return a new instance of the XML object referencing the
    ; child node, if found.
    child.i = CkXml::ckFindChild(xml,"meat")
    If CkXml::ckLastMethodSuccess(xml) = 0
        Debug "No direct child having the tag " + Chr(34) + "meat" + Chr(34) + " was found."
    Else
        Debug "Content = " + CkXml::ckContent(child)
        CkXml::ckDispose(child)

    EndIf

    ; The same can be accomplished without creating a new 
    ; XML object instance.  Instead, the FindChild2 method updates
    ; the caller's internal reference to the found child, if successful.
    success = CkXml::ckFindChild2(xml,"meat")
    If success = 1
        ; Success!  The xml object now references the found child.
        Debug "Content = " + CkXml::ckContent(xml)
        ; Restore the reference back to the parent.
        success = CkXml::ckGetParent2(xml)
    Else
        Debug "No direct child having the tag " + Chr(34) + "meat" + Chr(34) + " was found."
    EndIf



    CkXml::ckDispose(xml)


    ProcedureReturn
EndProcedure