(Tcl) Get XML Attribute Value by Path

Demonstrates how to get an attribute value by path.

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load ./chilkat.dll

# The XML used in this example contains the following:
# This example will get the value of the "spay-neuter" attribute for each pig.

# <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>

set xml [new_CkXml]

set success [CkXml_LoadXmlFile $xml "qa_data/xml/twoPigs.xml"]

# Use the ChilkatPath method to return the value of a particular attribute at a given path.
# A path ending with "(attributeName)" will return the value for the given attribute.
set path "herd|species|animal[0]|gender|(spay-neuter)"
set attrValue [CkXml_chilkatPath $xml $path]
puts "1st pig spay-neuter: $attrValue"

set path "herd|species|animal[1]|gender|(spay-neuter)"
set attrValue [CkXml_chilkatPath $xml $path]
puts "2nd pig spay-neuter: $attrValue"

# We could also do it like this:
set path "herd|species|animal[i]|gender|(spay-neuter)"
set i 0
while {$i < [CkXml_NumChildrenAt $xml "herd|species"]} {
    CkXml_put_I $xml $i
    puts "spay-neuter for pig number [expr $i + 1]: [CkXml_chilkatPath $xml $path]"
    set i [expr $i + 1]
}

delete_CkXml $xml