}

            if (closed) {
              throw IOException("stream closed")
            } else if (readBuffer.size > 0L) {
              // Prepare to read bytes. Start by moving them to the caller's buffer.
              readBytesDelivered = readBuffer.read(sink, minOf(byteCount, readBuffer.size))
              readBytes.update(total = readBytesDelivered)

    int readCharFromBuffer() throws IOException {
        if (readBufferIndex >= readBufferLen) {
            readBufferLen = input.read(readBuffer);
            if (readBufferLen == -1) {
                return -1;
            }
            readBufferIndex = 0;
        }
        final int c = readBuffer[readBufferIndex++];
        nextBlkStart++;
        return c;
    }

    boolean isDelimiter(final int c) {