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(Swift 3,4,5...) Compress and Decompress a StringDemonstrates how to compress and decompress a string.
func chilkatTest() { // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. var success: Bool let sb = CkoStringBuilder()! var i: Int for i = 1; i <= 20; i++ { sb.append("This is the original uncompressed string.\r\n") } let compress = CkoCompression()! compress.algorithm = "deflate" // Indicate that the utf-8 byte representation of the string should be compressed. compress.charset = "utf-8" var compressedBytes: NSData compressedBytes = compress.compressString(sb.getAsString()) // If the compressed data is desired in string format, then get the base64 representation of the bytes. compress.encodingMode = "base64" var compressedBase64: String? = compress.compressStringENC(sb.getAsString()) print("Compressed Bytes as Base64: \(compressedBase64!)") // Now decompress... var decompressedString: String? = compress.decompressString(compressedBytes) print("The original string after decompressing from binary compressed data:") print("\(decompressedString!)") // To decompress from Base64... compress.encodingMode = "base64" decompressedString = compress.decompressStringENC(compressedBase64) print("The original string after decompressing from Base64:") print("\(decompressedString!)") } |
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