Lua Requires Chilkat v9.5.0.64+

Demonstrate the XML UpdateAttrAt Method

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Demonstrates the XML UpdateAttrAt method to update attribute name/value pairs in XML. Lua

local chilkat = require("chilkat")

local xml = chilkat.Xml.new()

xml.tag = "animals"

local autoCreate = true

-- When the autoCreate argument equals true, the UpdateAttrAt
-- method auto-creates the children as needed:
xml:update_attr_at("penguin", autoCreate, "feature", "flightless bird")
xml:update_attr_at("mammal|rodent|squirrel", autoCreate, "feature", "bushy tail")
xml:update_attr_at("mammal|rodent|rat", autoCreate, "feature", "long hairless tail")

-- Show the XML
print(xml:get_xml())

--     <?xml version="1.0" encoding="utf-8" ?>
--     <animals>
--         <penguin feature="flightless bird" />
--         <mammal>
--             <rodent>
--                 <squirrel feature="bushy tail" />
--                 <rat feature="long hairless tail" />
--             </rodent>
--         </mammal>
--     </animals>
--

-- Now update each node's "feature" attribute..
xml:update_attr_at("penguin", autoCreate, "feature", "black and white")
xml:update_attr_at("mammal|rodent|squirrel", autoCreate, "feature", "grey, red, or black")
xml:update_attr_at("mammal|rodent|rat", autoCreate, "feature", "brown, grey, white, or black")

print(xml:get_xml())

--     <?xml version="1.0" encoding="utf-8" ?>
--     <animals>
--         <penguin feature="black and white" />
--         <mammal>
--             <rodent>
--                 <squirrel feature="grey, red, or black" />
--                 <rat feature="brown, grey, white, or black" />
--             </rodent>
--         </mammal>
--     </animals>
--