public TagletManager(boolean nosince, boolean showversion,
                         boolean showauthor, MessageRetriever message){
        overridenStandardTags = new HashSet();
        potentiallyConflictingTags = new HashSet();
        standardTags = new HashSet();
        standardTagsLowercase = new HashSet();
        unseenCustomTags = new HashSet();
        customTags = new LinkedHashMap();
        this.nosince = nosince;
        this.showversion = showversion;
        this.showauthor = showauthor;
        this.message = message;
        initStandardTags();
        initStandardTagsLowercase();
    }