Rust

AddAttribute - Insert New Attribute in an XML Node

Demonstrates adding an name=value attribute to an XML element.

This example uses the XML sample file here: sample1.xml. The sample1.xml file contains this content:

Rust

let xml = chilkat::Xml::new();

if xml.load_xml_file("qa_data/xml/sample1.xml").is_err() {
    println!("{}", xml.last_error_text());
    return;
}

// Navigate to the "books" element:
if xml.find_child2("books").is_err() {
    println!("No books child found!");
    return;
}

let num_children = xml.num_children();

let mut i = 0;
while i < num_children {

    // Navigate to the Nth book 
    let _ = xml.get_child2(i);

    // Display the book title:
    println!("{}", xml.get_attr_value("title").unwrap_or_default());

    // Add a new integer attribute:
    // Should never fail..
    let _ = xml.add_attribute_int("bookId", i);

    // Add a new unread="yes" attribute:
    let _ = xml.add_attribute("unread", "yes");

    // Navigate back up to the parent:
    let _ = xml.get_parent2();

    i = i + 1;
}

// Navigate back to the document root:
xml.get_root2();

// Save the updated document:
if xml.save_xml("modified.xml").is_err() {
    println!("{}", xml.last_error_text());
    return;
}

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