public void registerRandeEnd(Locator locator) {
        String systemId = locator.getSystemId();
        if (uri == systemId || (uri != null && uri.equals(systemId))) {
            rangeLasts.add(newLocatorLocation(locator.getLineNumber(), locator.getColumnNumber()));
        }
    }
@see org.xml.sax.ContentHandler#characters(char[], int, int)
@see java.lang.StringBuffer#append(char[], int, int)
src/nu/validator/source/SourceCode.java