Swift

Compress a String and Save as a Gzip File

See more Gzip Examples

This example demonstrates how to use the CompressStringToFile method to compress a string and write the result directly to a Gzip (.gz) file.

The input string is first converted to its byte representation using the specified character set (in this case, UTF-8). The resulting bytes are then compressed using the Gzip format, and the compressed output is written directly to the specified file.

This method is convenient when you want to generate a compressed file from in-memory text without needing intermediate objects such as BinData or StringBuilder.

Swift

func chilkatTest() {
    var success: Bool = false

    // This example demonstrates how to compress a string and save the result
    // directly to a Gzip (.gz) file.

    let gzip = CkoGzip()!

    // The string to be compressed:
    var inputStr: String? = "The quick brown fox jumps over the lazy dog."

    // Compress the string using UTF-8 and write to a file:
    success = gzip.compressString(toFile: inputStr, destCharset: "utf-8", destPath: "output.gz")
    if success == false {
        print("\(gzip.lastErrorText!)")
        return
    }

    print("Compression successful.")
    print("Gzip file written to output.gz")

}