Receive Text up to a Match into a StringBuilder

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveUntilMatchSb, which receives bytes until an exact byte sequence is found and appends the received text to a StringBuilder.

func chilkatTest() {
    var success: Bool = false

    let socket = CkoSocket()!

    //  Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
    //  connection succeeds; the 4th is the maximum time to wait, in milliseconds.
    var bTls: Bool = true
    var maxWaitMs: Int = 5000
    success = socket.connect(hostname: "example.com", port: 5000, ssl: bTls, maxWaitMs: maxWaitMs)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    //  StringCharset controls the character encoding used when sending and receiving text.
    socket.stringCharset = "utf-8"
    //  Send a request using a simple application-defined text protocol in which each message ends with a
    //  CRLF.
    var command: String? = "STATUS\r\n"
    success = socket.sendString(str: command)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    //  Receive bytes until an exact byte sequence is found, appending the received text to a
    //  StringBuilder.  The match may span multiple underlying network reads.
    let sb = CkoStringBuilder()!
    success = socket.receive(untilMatchSb: "<EOM>", sb: sb)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    var response: String? = sb.getAsString()
    if sb.lastMethodSuccess == false {
        print("\(sb.lastErrorText!)")
        return
    }

    print("\(response!)")

}