private void errNoNamedCharacterMatch() throws SAXException {
        if (getErrorHandler() == null) {
            return;
        }
        SAXParseException spe = new SAXParseException(
                "\u201C&\u201D did not start a character reference."
                        + " (\u201C&\u201D probably should have been escaped as"
                        + " \u201C&amp;\u201D.)",
                getDocumentLocator());
        getErrorHandler().error(spe);
    }
Collect a set of attribues and values from the data part of a PI.

<p>
The bulk of this method and associated methods that follow it here are
copied from the nu.validator.htmlparser.impl.Tokenizer class, with
appropriate modifications.
</p>

@see nu.validator.htmlparser.impl.Tokenizer
@see nu.validator.htmlparser.impl.ErrorReportingTokenizer
src/nu/validator/checker/XmlPiChecker.java