final List<AnalyzeToken> tokens, final StringBuilder buf, final String analyzeType, final boolean isLast) {
        try {
            final List<AnalyzeToken> result = useReading ? analyzer.analyzeAndReading(buf.toString().trim(), field, lang)
                    : analyzer.analyze(buf.toString().trim(), field, lang);
            if (result != null) {
                tokens.addAll(result);
            }