(Objective-C) Demonstrates the ChilkatPath XML Method

Demonstrates how to use the ChilkatPath method. This example uses the XML sample file pigs.xml. The pigs.xml file contains this content:

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

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

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

BOOL success = [xml LoadXmlFile: @"qa_data/xml/pigs.xml"];
if (success != YES) {
    NSLog(@"%@",xml.LastErrorText);
    return;
}

// Get the content of the "species" node for the 1st animal:
NSString *result = 0;
result = [xml ChilkatPath: @"animal|species|*"];
// Output should be "pot belly pig"
NSLog(@"%@",result);

// Get the content of the "type" node for the 2nd animal:
// Indexing begins at 0.  Therefore, the 2nd direct child having
// the tag "animal" is at index 1
result = [xml ChilkatPath: @"animal[1]|type|*"];
// Output should be "House Pig"
NSLog(@"%@",result);

// Find the pig having the name "Nigel" and display the
// birth date.  To do this, we&apos;ll navigate to the node having
// tag="name" with the exact content "Nigel", then navigate up, 
// and finally navigate back down to the "birth" node:
result = [xml ChilkatPath: @"/C/name,Nigel|..|birth|*"];
// Output should be "June, 1991"
NSLog(@"%@",result);

// Navigate to the 1st animal&apos;s picture and print the filename,
// description, and caption.
// The "$" updates the caller&apos;s internal pointer to reference
// the node that is the result of evaluating the path.
// An empty string is returned for success, and a NULL/nil/0
// pointer (reference) is returned on failure.  
result = [xml ChilkatPath: @"animal|picture|$"];
if (xml.LastMethodSuccess != YES) {
    NSLog(@"%@",@"Failed to navigate to animal|picture.");
    return;
}

// Display the contents of the file/description/caption child nodes
NSLog(@"%@",@"Picture Info:");
NSLog(@"%@",[xml GetChildContent: @"file"]);
NSLog(@"%@",[xml GetChildContent: @"description"]);
NSLog(@"%@",[xml GetChildContent: @"caption"]);

// Return back to the root of the XML document:
[xml GetRoot2];

// Display the value of the "spay-neuter" attribute of the 1st animal:
NSLog(@"%@",@"----");
result = [xml ChilkatPath: @"animal|gender|(spay-neuter)"];
NSLog(@"%@",result);