|Perl: the Markov chain saw|
XML::Twig -vs- XML::XPathby buttroast (Scribe)
|on Oct 13, 2004 at 02:10 UTC||Need Help??|
buttroast has asked for the
wisdom of the Perl Monks concerning the following question:
I am writing a program that reads a large GEDCOM XML 6.0 file and pulls out a specific individual based on an Id parameter passed to the script.
I decided to use XML::Twig because it only stores the selected individual's node in memory, instead of storing the entire XML file in memory. Since XML::Twig does not allow all of the XPath functionality as far as w3 is concerned, I started looking into using XML::XPath instead of XML::Twig.
My question is, does XML::XPath keep the entire XML file in memory? or does it work like XML::Twig? or do I just not understand either of them correctly :-) Also, if there are any better suggestions as far as reading XML efficiently, please let me know.
My thanks ahead of time...
So, to make sure I understand this, would I be correct in saying both XML::Twig and XML::XPath each read the entire XML file into memory once, with the difference being that XML::Twig gets rid of it as soon as it gets the node(s) it wants to further process?