in reply to How to parse a xml file using XML::DOM??

Personally, I would use XML::DOM::XPath, locate the element through the appropriate XPath query (//signal[@sigid="3464"]) and then output its value.

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Re^2: How to parse a xml file using XML::DOM??
by ankit.tayal560 (Beadle) on Sep 22, 2016 at 09:31 UTC

    Got your point but for some reason have to use XML::DOM only. Can you help me with that ?

[reply]

      Looking at the documentation of XML::DOM, it shows the use of ->getElementsByTagName. The simplest approach would then be something like:

      my $signals = $doc->getElementsByTagName('signal');
my @by_id = grep {
                my $sigid= $_->getAttributeNode('sigid');
                if( $sigid ) {
                    $sigid == 3464
                } else {
                    0  # no sigid attribute, no match
                }
            } map { $signals->item($_) } 0..$signals->getLength()-1

      [download]

      I still recommend using an XPath query.

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