(Swift 2) Demonstrate Binary Data Encoding Methods

Demonstrates binary data encoding methods.

Note: This example requires Chilkat v9.5.0.64 or later.

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

func chilkatTest() {
    let binData = CkoBinData()

    // Append 10 bytes: 00, 01, 02, 03, 04, 05, 06, 07, 08, 09
    binData.AppendEncoded("00010203040506070809", encoding: "hex")

    // Show that binData contains 10 bytes.
    print("num bytes = \(binData.NumBytes.intValue)")

    // Get as base64
    print("base64: \(binData.GetEncoded("base64"))")

    // Get a chunk of the binary data.
    // The 1st byte is at index 0.
    // The output should be "02030405"
    var offset: Int = 2
    var numBytes: Int = 4
    print("chunk: \(binData.GetEncodedChunk(offset, numBytes: numBytes, encoding: "hex"))")

    // Copy the bytes to a StringBuilder using the base64url encoding
    let sb = CkoStringBuilder()
    binData.GetEncodedSb("base64url", sb: sb)
    print("base64url: \(sb.GetAsString())")

    // Remove a chunk from the binary data
    offset = 2
    numBytes = 4
    binData.RemoveChunk(offset, numBytes: numBytes)
    // The bytes remaining are 00,01,06,07,08,and 09
    print("after removing chunk: \(binData.GetEncoded("hex"))")

}