Objective-C

Xml TagPath Property Explained

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Demonstrates and explains the TagPath property. Objective-C

#import <CkoXml.h>
#import <NSString.h>

BOOL success = NO;

CkoXml *xml = [[CkoXml alloc] init];

//  Load some XML:
success = [xml LoadXml: @"<a><bbb><ccc><ddd>1</ddd><ddd><z>zzz</z></ddd><ddd>3</ddd></ccc></bbb></a>"];

NSLog(@"%@",[xml GetXml]);

//  This is what we have:

//  <?xml version="1.0" encoding="utf-8"?>
//  <a>
//      <bbb>
//          <ccc>
//              <ddd>1</ddd>
//              <ddd>
//                  <z>zzz</z>
//              </ddd>
//              <ddd>3</ddd>
//          </ccc>
//      </bbb>
//  </a>

//  The TagPath property is read-only property that returns the unique path to the
//  node from the document root.

//  For example:
BOOL found = [xml SearchForTag2: xml tag: @"z"];
if (found == YES) {
    //  We found a node having the tag "z".
    //  The TagPath property tells us the location in the document.
    NSString *tagPath = xml.TagPath;
    NSLog(@"%@",tagPath);

    //  The tagPath is bbb|ccc|ddd[1]|z

    //  If we to back to the document root, we can get to the given node via the tagPath.
    [xml GetRoot2];
    NSLog(@"%@",xml.Tag);
    //  The root tag is "a".

    //  Follow the tagPath to the "z" node:
    found = [xml FindChild2: tagPath];
    NSLog(@"%@%d%@%@",@"found = ",found,@", tag = ",xml.Tag);
    //  We are now at "z".

}