(Objective-C) Demonstrate the XML "I" Property

Demonstrates the XML "I" property. The properties I, J, and K can be used in paths to access the I'th, J'th, or K'th child in a path. Three indexing properties are provided to allow for triple-nested loops using this feature.

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

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

// This example uses the XML document at https://www.chilkatsoft.com/exampleData/xero_accounts.xml
// The data is a download of the Xero accounts for the sandbox company test data (it's not real data).

// We'll use Chilkat HTTP to download the XML.
// This example assumes the Chilkat HTTP API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoStringBuilder *sbXml = [[CkoStringBuilder alloc] init];

// Download the XML from https://www.chilkatsoft.com/exampleData/xero_accounts.xml
// into sbXml
NSString *url = @"https://www.chilkatsoft.com/exampleData/xero_accounts.xml";
CkoHttp *http = [[CkoHttp alloc] init];
BOOL success = [http QuickGetSb: url sbContent: sbXml];
if (success != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

BOOL bAutoTrim = NO;
CkoXml *xml = [[CkoXml alloc] init];
[xml LoadSb: sbXml autoTrim: bAutoTrim];

// How many accounts exist?
int numAccounts = [[xml NumChildrenAt: @"Accounts"] intValue];
NSLog(@"%@%d",@"numAccounts = ",numAccounts);

int i = 0;
while (i < numAccounts) {
    xml.I = [NSNumber numberWithInt: i];
    NSLog(@"%@%@",@"AccountID: ",[xml GetChildContent: @"Accounts|Account[i]|AccountID"]);
    NSLog(@"%@%@",@"Name: ",[xml GetChildContent: @"Accounts|Account[i]|Name"]);
    NSLog(@"%@%d",@"Code: ",[[xml GetChildIntValue: @"Accounts|Account[i]|Code"] intValue]);
    NSLog(@"%@%d",@"EnablePaymentsToAccount: ",[xml GetChildBoolValue: @"Accounts|Account[i]|EnablePaymentsToAccount"]);
    NSLog(@"%@",@"----");
    i = i + 1;
}

// The output looks like this:

// 	numAccounts = 69
// 	AccountID: ceef66a5-a545-413b-9312-78a53caadbc4
// 	Name: Checking Account
// 	Code: 90
// 	EnablePaymentsToAccount: False
// 	----
// 	AccountID: 3d09fd49-434d-4c18-a57b-831663ab70d2
// 	Name: Savings Account
// 	Code: 91
// 	EnablePaymentsToAccount: False
// 	----
// 	AccountID: 5f5e1b00-5331-4ee5-bc84-39dbd9a27db3
// 	Name: Accounts Receivable
// 	Code: 120
// 	EnablePaymentsToAccount: False
// 	----
// 	AccountID: b0a23f8d-1b6d-4209-96f9-8046f794e1f4
// 	Name: Prepayments
// 	Code: 130
// 	EnablePaymentsToAccount: False
// 	----
// 	...

// The xero_accounts.xml file contains data that looks like this:

// 	<Response xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
// 	  <Id>409d062b-d3c2-4062-99a6-31b7c1c14662</Id>
// 	  <Status>OK</Status>
// 	  <ProviderName>ChilkatPrivate</ProviderName>
// 	  <DateTimeUTC>2016-11-01T22:30:13.3606258Z</DateTimeUTC>
// 	  <Accounts>
// 	    <Account>
// 	      <AccountID>ceef66a5-a545-413b-9312-78a53caadbc4</AccountID>
// 	      <Code>090</Code>
// 	      <Name>Checking Account</Name>
// 	      <Status>ACTIVE</Status>
// 	      <Type>BANK</Type>
// 	      <TaxType>NONE</TaxType>
// 	      <Class>ASSET</Class>
// 	      <EnablePaymentsToAccount>false</EnablePaymentsToAccount>
// 	      <ShowInExpenseClaims>false</ShowInExpenseClaims>
// 	      <BankAccountNumber>132435465</BankAccountNumber>
// 	      <BankAccountType>BANK</BankAccountType>
// 	      <CurrencyCode>USD</CurrencyCode>
// 	      <ReportingCode>ASS</ReportingCode>
// 	      <ReportingCodeName>Assets</ReportingCodeName>
// 	      <HasAttachments>false</HasAttachments>
// 	      <UpdatedDateUTC>2016-10-15T22:22:44.53</UpdatedDateUTC>
// 	    </Account>
// 	    <Account>
// 	      <AccountID>3d09fd49-434d-4c18-a57b-831663ab70d2</AccountID>
// 	      <Code>091</Code>
// 	      <Name>Savings Account</Name>
// 	      <Status>ACTIVE</Status>
// 	      <Type>BANK</Type>
// 	      <TaxType>NONE</TaxType>
// 	      <Class>ASSET</Class>
// 	      <EnablePaymentsToAccount>false</EnablePaymentsToAccount>
// 	      <ShowInExpenseClaims>false</ShowInExpenseClaims>
// 	      <BankAccountNumber>987654321</BankAccountNumber>
// 	      <BankAccountType>BANK</BankAccountType>
// 	      <CurrencyCode>USD</CurrencyCode>
// 	      <ReportingCode>ASS</ReportingCode>
// 	      <HasAttachments>false</HasAttachments>
// 	      <UpdatedDateUTC>2016-10-15T22:22:44.53</UpdatedDateUTC>
// 	    </Account>
// 	    ...
//