AutoIt

Iterate over Direct Child Nodes by Index

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Demonstrates some ways to iterate over direct child nodes by index.

The input XML, available at http://www.chilkatsoft.com/data/get_child.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>

AutoIt

Local $bSuccess = False

$oXml = ObjCreate("Chilkat.Xml")
Local $oChild

; The sample input XML is available at http://www.chilkatsoft.com/data/get_child.xml
$bSuccess = $oXml.LoadXmlFile("get_child.xml")
If ($bSuccess <> True) Then
    ConsoleWrite($oXml.LastErrorText & @CRLF)
    Exit
EndIf

; The NumChildren property contains the number of direct
; child nodes.  Note: The child nodes under "xyz" are NOT
; direct children of "root".  Therefore, the "root" node has
; 7 direct children
ConsoleWrite("NumChildren = " & $oXml.NumChildren & @CRLF)

; Iterate over the direct children by index. The first child
; is at index 0.
Local $i
For $i = 0 To $oXml.NumChildren - 1
    ;  access the tag and content directly by index:
    ConsoleWrite($i & ": " & $oXml.GetChildTagByIndex($i) & " : " & $oXml.GetChildContentByIndex($i) & @CRLF)

Next
ConsoleWrite("-----" & @CRLF)

; Do the same as the above loop, but get the child node
; and access the Tag and Content properties:
For $i = 0 To $oXml.NumChildren - 1
    $oChild = $oXml.GetChild($i)
    ConsoleWrite($i & ": " & $oChild.Tag & " : " & $oChild.Content & @CRLF)

Next
ConsoleWrite("-----" & @CRLF)

; Do the same as the above loop, but instead of creating
; a new object instance for each child, call GetChild2 to
; update the object's reference instead.
For $i = 0 To $oXml.NumChildren - 1
    ; Navigate to the Nth child.  
    $bSuccess = $oXml.GetChild2($i)
    ConsoleWrite($i & ": " & $oXml.Tag & " : " & $oXml.Content & @CRLF)
    ; Navigate back up to the parent:
    $bSuccess = $oXml.GetParent2()
Next
ConsoleWrite("-----" & @CRLF)

; Notice that the Content of the "xyz" node is empty.  This is correct.
; The "xyz" node has no Content, but 2 direct children