(Swift 3,4,5...) Iterate over Matching Filenames

Iterates over files within a .zip that match a pattern. In this case, the pattern is "*.pem". This example will open a .zip containing files of type .txt, .cer, .pem, and possibly others, and will iterate over only the .pem files.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let zip = CkoZip()!

    // Open a .zip containing PEM files, among other things..
    var success: Bool = zip.open("qa_data/certs/thawte-roots.zip")
    if success != true {
        print("\(zip.lastErrorText!)")
        return
    }

    var entry: CkoZipEntry? = zip.first(matchingEntry: "*.pem")
    if zip.lastMethodSuccess != true {
        print("No PEM entries found.")
        return
    }

    var nextEntry: CkoZipEntry?
    var pemStr: String?

    var bContinue: Bool = true
    while (bContinue == true) {

        print("Entry: \(entry!.fileName!)")

        // Get the uncommpressed contents of the entry:
        pemStr = entry!.unzip(toString: 0, srcCharset: "utf-8")
        print("\(pemStr!)")

        nextEntry = entry!.next(matchingEntry: "*.pem")
        bContinue = entry!.lastMethodSuccess
        entry = nil
        entry = nextEntry
    }


}