src/Lucene.Net.Analysis.Common/Analysis/Ru/RussianLetterTokenizerFactory.cs

using Lucene.Net.Analysis.Util;
using Lucene.Net.Util;
using System;
using System.Collections.Generic;
using System.IO;

namespace Lucene.Net.Analysis.Ru
{
    /*
     * Licensed to the Apache Software Foundation (ASF) under one or more
     * contributor license agreements.  See the NOTICE file distributed with
     * this work for additional information regarding copyright ownership.
     * The ASF licenses this file to You under the Apache License, Version 2.0
     * (the "License"); you may not use this file except in compliance with
     * the License.  You may obtain a copy of the License at
     *
     *     http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */

    /// @deprecated Use <see cref="Standard.StandardTokenizerFactory"/> instead.
    ///  This tokenizer has no Russian-specific functionality. 
    [Obsolete("Use Standard.StandardTokenizerFactory instead.")]
    public class RussianLetterTokenizerFactory : TokenizerFactory
    {
        /// <summary>
        /// Creates a new <see cref="RussianLetterTokenizerFactory"/> </summary>
        public RussianLetterTokenizerFactory(IDictionary<string, string> args) : base(args)
        {
            AssureMatchVersion();
            if (args.Count > 0)
            {
                throw new ArgumentException("Unknown parameters: " + args);
            }
        }

        public override Tokenizer Create(AttributeSource.AttributeFactory factory, TextReader input)
        {
            return new RussianLetterTokenizer(m_luceneMatchVersion, factory, input);
        }
    }
}