Lua Requires Chilkat v9.5.0.77+

Traverse the XML Tree

See more XML Examples

Demonstrates how to traverse all nodes in an XML tree. Lua

local chilkat = require("chilkat")

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

local xml = chilkat.Xml.new()

local success = xml:load_xml_file("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.
local sbState = chilkat.StringBuilder.new()
while xml:next_in_traversal2(sbState) do
    print(xml.tag)
    print(xml.tag_path)
    print("")
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
--