| using Lucene.Net.Analysis.Util; |
| using System; |
| using System.Collections.Generic; |
| using System.IO; |
| using System.Text.RegularExpressions; |
| |
| namespace Lucene.Net.Analysis.CharFilters |
| { |
| /* |
| * 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="HTMLStripCharFilter"/>. |
| /// <code> |
| /// <fieldType name="text_html" class="solr.TextField" positionIncrementGap="100"> |
| /// <analyzer> |
| /// <charFilter class="solr.HTMLStripCharFilterFactory" escapedTags="a, title" /> |
| /// <tokenizer class="solr.WhitespaceTokenizerFactory"/> |
| /// </analyzer> |
| /// </fieldType> |
| /// </code> |
| /// </summary> |
| public class HTMLStripCharFilterFactory : CharFilterFactory |
| { |
| private readonly ICollection<string> escapedTags; |
| private static readonly Regex TAG_NAME_PATTERN = new Regex(@"[^\\s,]+", RegexOptions.Compiled); |
| |
| /// <summary> |
| /// Creates a new <see cref="HTMLStripCharFilterFactory"/> </summary> |
| public HTMLStripCharFilterFactory(IDictionary<string, string> args) : base(args) |
| { |
| escapedTags = GetSet(args, "escapedTags"); |
| if (args.Count > 0) |
| { |
| throw new ArgumentException("Unknown parameters: " + args); |
| } |
| } |
| |
| public override TextReader Create(TextReader input) |
| { |
| HTMLStripCharFilter charFilter; |
| if (null == escapedTags) |
| { |
| charFilter = new HTMLStripCharFilter(input); |
| } |
| else |
| { |
| charFilter = new HTMLStripCharFilter(input, escapedTags); |
| } |
| return charFilter; |
| } |
| } |
| } |