How do I update a single instance of a repeatable element in a xml document?

[Melanie Rouette]

Hi,
If I have something like:
<myfamily>
<member>Father Brian</member>
<member>Mother Elisabeth</member>
<member>Sister Judy</member>
<member>brother Lathan</member>
</myfamily>

and I want to update the <member>Sister Judy</member> element only, based on the fact that I want to update only the element that has the word "Sister" in it's text content. (Let's say I want to change the name of my Sister so what I want as a result is <member>Sister Elisa</member> and I still want to keep all the other <member/> elements as they are).

I use the XML::LibXML library more specifically: XML::LibXML::Document, XML::LibXML::Node, XML::LibXML ::Element.

How do I do that?

I tried to use the findNodes (myfamily/member) (in XML::LibXML::Node) method to extract into an array the list of nodes that follow the xpath expression: myfamily/member. Then I looped through my array until I found the element with the word Sister in it's text context. Once found, I created a new node using new('Sister Elisa') (inXML::LibXML::Element) then I used $oldNode->replaceNode($newNode) (in XML::LibXML::Node). It seems to change the value but my xml document is not being updated...

Melanie


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