final Matcher m = p.matcher(cache);
        final String[] regexQueries = new String[queries.length];
        final String[] hlQueries = new String[queries.length];
        for (int i = 0; i < queries.length; i++) {
            regexQueries[i] = Pattern.quote(queries[i]);
            hlQueries[i] = highlightTagPre + queries[i] + highlightTagPost;
        }
        while (m.find()) {
            segBuf.setLength(0);