Re: Want to fetch inner most child element first

[flexvault]

Welcom dharan,

"...using XML::XPath..."

And the code that you are having a problem with is where?

Regards...Ed

[dharan]

Thanks flex for swift reply, below is the code and not sure how to proceed further.

 use XML::XPath;
 my $xp = XML::XPath->new(filename => 'mathml.txt');
 my $nodeset = $xp->find('/mml:math/*');

 foreach my $node ($nodeset->get_nodelist) {
    $l = XML::XPath::XMLParser::as_string($node),
}

[sundialsvc4]

The XPath expression that you have written merely matches the outermost node.   What you might want to use here are axes.

Try something like this:   (extemporaneous answer, check it yourself)

//xml:msub[count(descendant::xml:msub) = 0] to retrieve all msubs who do not have any descendants of the same type.   These must be the leaves of the structure.

Now, for each of these, perform a separate query for ancestor::xml:msub which will return an ordered list (from closest to farthest, or is it the other way around?) of all ancestors back to the top of the tree.