private void errQuoteOrLtInAttributeNameOrNull(char c) throws SAXException {
        if (c != '\uFFFD') {
            err("Quote \u201C" + c
                    + "\u201D in pseudo-attribute name. Probable cause:"
                    + " Matching quote missing somewhere earlier.");
        }
    }
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