/**
     * A string to replace ;.
     */
    protected String semicolonStr = "_SCLN_";

    /**
     * A string to replace &.
     */
    protected String ampersandStr = "_AMP_";

    protected int maxDuplicatedPath = 100;

    protected String charsetName = Constants.UTF_8;

    /**
     * A directory to store downloaded files.
     */
    protected File baseDir;