Ruby

Traverse the XML Tree

See more XML Examples

Demonstrates how to traverse all nodes in an XML tree.

Note: This example requires Chilkat v9.5.0.77 or greater.

Ruby

require 'chilkat'

success = false

# Use the NextInTraversal2 method to traverse all nodes in the XML tree rooted at the caller.

xml = Chilkat::CkXml.new()

success = xml.LoadXmlFile("qa_data/xml/twoPigs.xml")

# This is the XML traversed in this example:

# <pig-rescue>
#   <herd name="Cathy">
# 	<species name="pot belly pig">
# 	    <animal>
# 	        <name>Molly II</name>
# 	        <birth>February, 1998</birth>
# 			<in-date>January, 2000</in-date>
# 			<from>Middle Ave.</from>
# 			<gender spay-neuter="yes">F</gender>
# 			<info>Molly came from a place where an old, ill man had too many animals.
# 	              	The animals were seldom fed and rats would eat the newborn piglets.
# 	             	 When Molly was found at one week old, she was the only piglet of 
# 	              	her siblings who did not get stepped on by a cow. She is a sweet, 
# 	              	friendly pig who likes to hang out on Cathy's porch on the lounge 
# 	              	pad.
# 			</info>
# 		</animal>
# 	    <animal>
# 			<name>Nigel</name>
# 			<birth>June, 1991</birth>
# 			<in-date>August, 1991</in-date>
# 			<from>Breeder</from>
# 			<gender spay-neuter="no">M</gender>
# 			<info>
# 			 	Nigel was the first pig and the reason for the rescue in the
# 			 	first place. He is 13 now and doing well, but takes a number 
# 				of medications, as you can see below.
# 			</info>
# 		</animal>		
# 	</species>
#   </herd>
# </pig-rescue>

# The sbState is an object used to keep track of the current state of the traversal.
sbState = Chilkat::CkStringBuilder.new()
while xml.NextInTraversal2(sbState) != false

    print xml.tag() + "\n";
    print xml.tagPath() + "\n";
    print "" + "\n";

end

# Produces the following output:

# herd
# herd
# 
# species
# herd|species
# 
# animal
# herd|species|animal[0]
# 
# name
# herd|species|animal[0]|name
# 
# birth
# herd|species|animal[0]|birth
# 
# in-date
# herd|species|animal[0]|in-date
# 
# from
# herd|species|animal[0]|from
# 
# gender
# herd|species|animal[0]|gender
# 
# info
# herd|species|animal[0]|info
# 
# animal
# herd|species|animal[1]
# 
# name
# herd|species|animal[1]|name
# 
# birth
# herd|species|animal[1]|birth
# 
# in-date
# herd|species|animal[1]|in-date
# 
# from
# herd|species|animal[1]|from
# 
# gender
# herd|species|animal[1]|gender
# 
# info
# herd|species|animal[1]|info
#