& XSLT Mesdaq, Ali wrote:
>  I am using xml to keep a list of items I need to loop through. But I
>  would like to delete the items as I am looping through. So in case if
>  the system crashes and I boot back up I know where to continue from. So
>  now a few questions I have regarding that. 
>  
>  One is what do I use to delete the node?

it's removeChild, but that is only going to affect the
_in_memory_ tree; it isn't going to help recover
from crashes unless you serialize & write the dom
back to a file after each removal.

I was looking through the
>  documentation for libxml on cpan and I see "replaceNode" in the
>  XML::LibXML::Node library but it seems like it keeps a copy around which
>  seems to be a little inefficient. I am pretty sure there is probably a
>  better function for this but I couldn't find it and I would imagine it
>  would be in the XML::LibXML::Node library. 
>  
>  Second question is about the reliability of either the replaceNode call
>  or whatever the better function call is. How reliable is that call? If I
>  call that is there a chance the document could be in a non-valid state?
>  Or will that call ensure that it only deletes that node and not delete
>  it partially?

Not completely clear what you mean;
You certainly can replace the node by a node that isn't allowed
by the dtd/schema, so it can easily be non valid in that sense.

>  
>  Thanks in advance.
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