(Swift 3,4,5...) Unzip Encrypted Text into a String Variable

Demonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable.

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()!

    // Set the password required for decrypting.
    zip.decryptPassword = "myPassword"

    var success: Bool = zip.open("encrypted.zip")
    if success != true {
        print("\(zip.lastErrorText!)")
        return
    }

    // Locate the file within the Zip to be unzipped into a string variable:
    var entry: CkoZipEntry? = zip.first(matchingEntry: "*.csv")
    if zip.lastMethodSuccess == false {
        print("No matching entry found.")
        return
    }

    // lineEndingBehavior:
    // 0 = leave unchanged.
    // 1 = convert all to bare LF's
    // 2 = convert all to CRLF's
    var lineEndingBehavior: Int = 0
    var srcCharset: String? = "utf-8"

    var strCsv: String? = entry!.unzip(toString: lineEndingBehavior, srcCharset: srcCharset)
    print("\(strCsv!)")
    entry = nil

}