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Analyzer analyzer = null;
            //if (isPangu)
            //{
            //    analyzer = new PanGuAnalyzer();//盘古Analyzer
            //}
            //else
            //{
            analyzer = new StandardAnalyzer(Version.LUCENE_CURRENT);
            //}

/// <summary>
        /// 构造常见的几种Analyzer列表
        /// </summary>
        /// <returns></returns>
        public static IList<Analyzer> BuildAnalyzers()
        {
            IList<Analyzer> listAnalyzer = new List<Analyzer>()
            {
                new PanGuAnalyzer(),//盘古分词器  provide by eaglet http://pangusegment.codeplex.com/
                //new StandardAnalyzer(Version.LUCENE_29),
                //new WhitespaceAnalyzer(),
                //new KeywordAnalyzer(),
                //new SimpleAnalyzer(),
                //new StopAnalyzer(Version.LUCENE_29),
            };
            return listAnalyzer;
        }