(Objective-C) List Files in Zip using FirstEntry/NextEntry

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Demonstrates how to iterate over the files and directories in a zip archive using the FirstEntry and NextEntry functions.

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#import <CkoZip.h>
#import <CkoZipEntry.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoZip *zip = [[CkoZip alloc] init];

BOOL success = [zip OpenZip: @"qa_data/zips/xml_files.zip"];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

CkoZipEntry *entry = [zip FirstEntry];
if (zip.LastMethodSuccess == NO) {
    NSLog(@"%@",@"This zip archive is empty.");
    return;
}

BOOL finished = NO;
while (finished == NO) {

    if (entry.IsDirectory == NO) {
        NSLog(@"%@",entry.FileName);
    }
    else {
        NSLog(@"%@%@",@"(directory) ",entry.FileName);
    }

    CkoZipEntry *next = [entry NextEntry];
    if (entry.LastMethodSuccess == NO) {
        finished = YES;
    }

    entry = next;
}

// Sample output showing both file and directory entries:

// a1.xml
// b1.xml
// c1.xml
// (directory) dir1/
// dir1/a2.xml
// dir1/c2.xml
// (directory) dir2/
// (directory) dir2/dir3/
// dir2/dir3/c3.xml