| using Lucene.Net.Analysis.Util; |
| using System.Collections.Generic; |
| using System.Text.RegularExpressions; |
| |
| namespace Lucene.Net.Analysis.Pattern |
| { |
| /* |
| * 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. |
| */ |
| |
| /// <summary> |
| /// Factory for <see cref="PatternCaptureGroupTokenFilter"/>. |
| /// <code> |
| /// <fieldType name="text_ptncapturegroup" class="solr.TextField" positionIncrementGap="100"> |
| /// <analyzer> |
| /// <tokenizer class="solr.KeywordTokenizerFactory"/> |
| /// <filter class="solr.PatternCaptureGroupFilterFactory" pattern="([^a-z])" preserve_original="true"/> |
| /// </analyzer> |
| /// </fieldType></code> |
| /// </summary> |
| /// <seealso cref="PatternCaptureGroupTokenFilter"/> |
| public class PatternCaptureGroupFilterFactory : TokenFilterFactory |
| { |
| private Regex pattern; |
| private bool preserveOriginal = true; |
| |
| public PatternCaptureGroupFilterFactory(IDictionary<string, string> args) |
| : base(args) |
| { |
| pattern = GetPattern(args, "pattern"); |
| preserveOriginal = args.TryGetValue("preserve_original", out string value) ? bool.Parse(value) : true; |
| } |
| |
| public override TokenStream Create(TokenStream input) |
| { |
| return new PatternCaptureGroupTokenFilter(input, preserveOriginal, pattern); |
| } |
| } |
| } |