*
 * <p>Usage example:</p>
 * <pre>
 * {@code
 * DefaultContentsParser parser = new DefaultContentsParser();
 * SuggestItem item = parser.parseSearchWords(words, readings, fields, tags, roles, score, readingConverter, normalizer, analyzer, langs);
 * }
 * </pre>
 *
 * @see ContentsParser
 * @see SuggestItem
 * @see ReadingConverter
 * @see Normalizer

            }
            prev = c;
        }
        final String[] words = buf.toString().trim().split(" ");
        try {
            final SuggestItem item =
                    contentsParser.parseSearchWords(words, null, fields, tags, roles, num, readingConverter, normalizer, analyzer, langs);
            if (item == null) {
                return new SuggestIndexResponse(0, 1, null, System.currentTimeMillis() - start);