(Ruby) Iterate over Direct Children with a Specific Tag

Demonstrates how to iterate over direct children having a specific tag.

The input XML, available at http://www.chilkatsoft.com/data/fruit.xml, is this:

<root>
    <fruit color="red">apple</fruit>
    <fruit color="green">pear</fruit>
    <veg color="orange">carrot</veg>
    <meat animal="cow">beef</meat>
    <xyz>
        <fruit color="blue">blueberry</fruit>
        <veg color="green">broccoli</veg>
    </xyz>
    <fruit color="purple">grape</fruit>
    <cheese color="yellow">cheddar</cheese>
</root>

Downloads for Windows/Linux and Install Instructions

require 'chilkat'

xml = Chilkat::CkXml.new()

#  The sample input XML is available at http://www.chilkatsoft.com/data/fruit.xml
success = xml.LoadXmlFile("fruit.xml")
if (success != true)
    print xml.lastErrorText() + "\n";
    exit
end

#   Get the number of direct children having the tag "fruit"
numWithTag = xml.NumChildrenHavingTag("fruit")

if (numWithTag > 0)

    for i in 0 .. numWithTag - 1
        # child is a CkXml
        child = xml.GetNthChildWithTag("fruit",i)
        print i.to_s() + ": " + child.tag() + 
            " : " + child.content() + "\n";

    end
    print "-----" + "\n";

    #  Do the same as the above loop, but instead of creating
    #  a new object instance for each child, call GetNthChildWithTag2 to
    #  update the object's reference instead.
    for i in 0 .. numWithTag - 1
        #  Navigate to the Nth child.
        xml.GetNthChildWithTag2("fruit",i)
        print i.to_s() + ": " + xml.tag() + 
            " : " + xml.content() + "\n";
        #  Navigate back up to the parent:
        xml.GetParent2()
    end
    print "-----" + "\n";

end