Zig

Traverse the XML Tree

See more XML Examples

Demonstrates how to traverse all nodes in an XML tree.

Note: This example requires Chilkat v9.5.0.77 or greater.

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    const xml = try chilkat.Xml.init();
    defer xml.deinit();

    try xml.loadXmlFile("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.
    const sb_state = try chilkat.StringBuilder.init();
    defer sb_state.deinit();
    while (xml.nextInTraversal2(sb_state)) {
        std.debug.print("{s}\n", .{try xml.getTag(alloc)});
        std.debug.print("{s}\n", .{try xml.getTagPath(alloc)});
        std.debug.print("\n", .{});
    }

    // 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
    //
}