pullRulesets(style, sheet);
CSSRuleList rl = style.getCssRules(); pullRulesets(rl, sheet, info);
    public Stylesheet parse(java.io.Reader reader, StylesheetInfo info) {        InputSource is = new InputSource(reader);        CSSStyleSheet style = null;        try {            style = parser.parseStyleSheet(is);        } catch (java.io.IOException e) {            throw new XRRuntimeException("IOException on parsing style seet from a Reader; don't know the URI.", e);        }        Stylesheet sheet = new Stylesheet(info);        pullRulesets(style, sheet);        return sheet;    }