}
    }

    private static boolean isWindows() {
        return System.getProperty("os.name").toLowerCase().contains("windows");
    }

    private static boolean isMacOS() {
        return System.getProperty("os.name").toLowerCase().contains("mac");
    }

    private static class ExecResult {
        private final String[] args;
        private final int code;

    private void addAnchorsForHeadings(Document document) {
        // add anchors for all of the headings
        for (Element heading : document.body().select("h2,h3,h4")) {
            String anchorName = heading.text().toLowerCase().replaceAll(" ", "-");
            heading.attr("id", anchorName);
        }
    }

    public void setJqueryFiles(Set<File> jqueryFiles) {
        this.jqueryFiles = jqueryFiles;
    }