Rust

Demonstrate the XML UpdateAttrAt Method

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

Note: This example requires Chilkat v9.5.0.64 or later.

Rust

// Note: This example requires Chilkat v9.5.0.64 or later.
let xml = chilkat::Xml::new();

xml.set_tag("animals");

let auto_create = true;

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

// Show the XML
println!("{}", xml.get_xml().unwrap_or_default());

// 	<?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..
let _ = xml.update_attr_at("penguin", auto_create, "feature", "black and white");
let _ = xml.update_attr_at("mammal|rodent|squirrel", auto_create, "feature", "grey, red, or black");
let _ = xml.update_attr_at("mammal|rodent|rat", auto_create, "feature", "brown, grey, white, or black");

println!("{}", xml.get_xml().unwrap_or_default());

// 	<?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>
//