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| <article class="content wrap" id="_content" data-uid="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter"> |
| |
| |
| <h1 id="Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter" data-uid="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter" class="text-break">Class PatternCaptureGroupTokenFilter |
| </h1> |
| <div class="markdown level0 summary"><p>CaptureGroup uses .NET regexes to emit multiple tokens - one for each capture |
| group in one or more patterns.</p> |
| <p> |
| For example, a pattern like: |
| </p> |
| |
| <p> |
| <code>"(https?://([a-zA-Z-_0-9.]+))"</code> |
| </p> |
| |
| <p> |
| when matched against the string "<a href="http://www.foo.com/index&quot">http://www.foo.com/index"</a>; would return the |
| tokens "https://www.foo.com" and "www.foo.com". |
| </p> |
| |
| <p> |
| If none of the patterns match, or if preserveOriginal is true, the original |
| token will be preserved. |
| </p> |
| <p> |
| Each pattern is matched as often as it can be, so the pattern |
| <code> "(...)"</code>, when matched against <code>"abcdefghi"</code> would |
| produce <code>["abc","def","ghi"]</code> |
| </p> |
| <p> |
| A camelCaseFilter could be written as: |
| </p> |
| <p> |
| <pre><code> "([A-Z]{2,})", |
| "(?<![A-Z])([A-Z][a-z]+)", |
| "(?:^|\\b|(?<=[0-9_])|(?<=[A-Z]{2}))([a-z]+)", |
| "([0-9]+)"</code></pre> |
| </p> |
| <p> |
| plus if <span class="xref">Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.preserveOriginal</span> is true, it would also return |
| <code>camelCaseFilter</code> |
| </p> |
| </div> |
| <div class="markdown level0 conceptual"></div> |
| <div class="inheritance"> |
| <h5>Inheritance</h5> |
| <div class="level0"><span class="xref">System.Object</span></div> |
| <div class="level1"><span class="xref">Lucene.Net.Util.AttributeSource</span></div> |
| <div class="level2"><span class="xref">Lucene.Net.Analysis.TokenStream</span></div> |
| <div class="level3"><span class="xref">Lucene.Net.Analysis.TokenFilter</span></div> |
| <div class="level4"><span class="xref">PatternCaptureGroupTokenFilter</span></div> |
| </div> |
| <div classs="implements"> |
| <h5>Implements</h5> |
| <div><span class="xref">System.IDisposable</span></div> |
| </div> |
| <div class="inheritedMembers"> |
| <h5>Inherited Members</h5> |
| <div> |
| <span class="xref">Lucene.Net.Analysis.TokenFilter.m_input</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Analysis.TokenFilter.End()</span> |
| </div> |
| <div> |
| <a class="xref" href="https://lucenenet.apache.org/docs/4.8.0-beta00013/api/core/Lucene.Net.Analysis.TokenFilter.html#Lucene_Net_Analysis_TokenFilter_Dispose_System_Boolean_">TokenFilter.Dispose(Boolean)</a> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Analysis.TokenStream.Dispose()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.GetAttributeFactory()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.GetAttributeClassesEnumerator()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.GetAttributeImplsEnumerator()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.AddAttributeImpl(Lucene.Net.Util.Attribute)</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.AddAttribute<T>()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.HasAttributes</span> |
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| <span class="xref">Lucene.Net.Util.AttributeSource.HasAttribute<T>()</span> |
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| <span class="xref">Lucene.Net.Util.AttributeSource.GetAttribute<T>()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.ClearAttributes()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.CaptureState()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.RestoreState(Lucene.Net.Util.AttributeSource.State)</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.GetHashCode()</span> |
| </div> |
| <div> |
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| </div> |
| <div> |
| <a class="xref" href="https://lucenenet.apache.org/docs/4.8.0-beta00013/api/core/Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_ReflectAsString_System_Boolean_">AttributeSource.ReflectAsString(Boolean)</a> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.ReflectWith(Lucene.Net.Util.IAttributeReflector)</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.CloneAttributes()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.CopyTo(Lucene.Net.Util.AttributeSource)</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Util.AttributeSource.ToString()</span> |
| </div> |
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| <span class="xref">System.Object.Equals(System.Object, System.Object)</span> |
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| <span class="xref">System.Object.GetType()</span> |
| </div> |
| <div> |
| <span class="xref">System.Object.MemberwiseClone()</span> |
| </div> |
| <div> |
| <span class="xref">System.Object.ReferenceEquals(System.Object, System.Object)</span> |
| </div> |
| </div> |
| <h6><strong>Namespace</strong>: <a class="xref" href="Lucene.Net.Analysis.Pattern.html">Lucene.Net.Analysis.Pattern</a></h6> |
| <h6><strong>Assembly</strong>: Lucene.Net.Analysis.Common.dll</h6> |
| <h5 id="Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter_syntax">Syntax</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public sealed class PatternCaptureGroupTokenFilter : TokenFilter, IDisposable</code></pre> |
| </div> |
| <h3 id="constructors">Constructors |
| </h3> |
| <span class="small pull-right mobile-hide"> |
| <span class="divider">|</span> |
| <a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter__ctor_Lucene_Net_Analysis_TokenStream_System_Boolean_System_Text_RegularExpressions_Regex___.md&value=---%0Auid%3A%20Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.%23ctor(Lucene.Net.Analysis.TokenStream%2CSystem.Boolean%2CSystem.Text.RegularExpressions.Regex%5B%5D)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a> |
| </span> |
| <span class="small pull-right mobile-hide"> |
| <a href="https://github.com/NightOwl888/lucenenet/blob/fix/apidocs-layout/src/Lucene.Net.Analysis.Common/Analysis/Pattern/PatternCaptureGroupTokenFilter.cs/#L91">View Source</a> |
| </span> |
| <a id="Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter__ctor_" data-uid="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.#ctor*"></a> |
| <h4 id="Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter__ctor_Lucene_Net_Analysis_TokenStream_System_Boolean_System_Text_RegularExpressions_Regex___" data-uid="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.#ctor(Lucene.Net.Analysis.TokenStream,System.Boolean,System.Text.RegularExpressions.Regex[])">PatternCaptureGroupTokenFilter(TokenStream, Boolean, Regex[])</h4> |
| <div class="markdown level1 summary"><p>Creates a new <a class="xref" href="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.html">PatternCaptureGroupTokenFilter</a></p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public PatternCaptureGroupTokenFilter(TokenStream input, bool preserveOriginal, params Regex[] patterns)</code></pre> |
| </div> |
| <h5 class="parameters">Parameters</h5> |
| <table class="table table-bordered table-striped table-condensed"> |
| <thead> |
| <tr> |
| <th>Type</th> |
| <th>Name</th> |
| <th>Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td><span class="xref">Lucene.Net.Analysis.TokenStream</span></td> |
| <td><span class="parametername">input</span></td> |
| <td><p>the input <span class="xref">Lucene.Net.Analysis.TokenStream</span> </p> |
| </td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Boolean</span></td> |
| <td><span class="parametername">preserveOriginal</span></td> |
| <td><p>set to true to return the original token even if one of the |
| patterns matches </p> |
| </td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Text.RegularExpressions.Regex</span>[]</td> |
| <td><span class="parametername">patterns</span></td> |
| <td><p>an array of <a class="xref" href="Lucene.Net.Analysis.Pattern.html">Lucene.Net.Analysis.Pattern</a> objects to match against each token </p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <h3 id="methods">Methods |
| </h3> |
| <span class="small pull-right mobile-hide"> |
| <span class="divider">|</span> |
| <a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter_IncrementToken.md&value=---%0Auid%3A%20Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.IncrementToken%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a> |
| </span> |
| <span class="small pull-right mobile-hide"> |
| <a href="https://github.com/NightOwl888/lucenenet/blob/fix/apidocs-layout/src/Lucene.Net.Analysis.Common/Analysis/Pattern/PatternCaptureGroupTokenFilter.cs/#L154">View Source</a> |
| </span> |
| <a id="Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter_IncrementToken_" data-uid="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.IncrementToken*"></a> |
| <h4 id="Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter_IncrementToken" data-uid="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.IncrementToken">IncrementToken()</h4> |
| <div class="markdown level1 summary"></div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public override bool IncrementToken()</code></pre> |
| </div> |
| <h5 class="returns">Returns</h5> |
| <table class="table table-bordered table-striped table-condensed"> |
| <thead> |
| <tr> |
| <th>Type</th> |
| <th>Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td><span class="xref">System.Boolean</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 class="overrides">Overrides</h5> |
| <div><span class="xref">Lucene.Net.Analysis.TokenStream.IncrementToken()</span></div> |
| <span class="small pull-right mobile-hide"> |
| <span class="divider">|</span> |
| <a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter_Reset.md&value=---%0Auid%3A%20Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.Reset%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a> |
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| <a href="https://github.com/NightOwl888/lucenenet/blob/fix/apidocs-layout/src/Lucene.Net.Analysis.Common/Analysis/Pattern/PatternCaptureGroupTokenFilter.cs/#L212">View Source</a> |
| </span> |
| <a id="Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter_Reset_" data-uid="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.Reset*"></a> |
| <h4 id="Lucene_Net_Analysis_Pattern_PatternCaptureGroupTokenFilter_Reset" data-uid="Lucene.Net.Analysis.Pattern.PatternCaptureGroupTokenFilter.Reset">Reset()</h4> |
| <div class="markdown level1 summary"></div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public override void Reset()</code></pre> |
| </div> |
| <h5 class="overrides">Overrides</h5> |
| <div><span class="xref">Lucene.Net.Analysis.TokenFilter.Reset()</span></div> |
| <h3 id="implements">Implements</h3> |
| <div> |
| <span class="xref">System.IDisposable</span> |
| </div> |
| </article> |
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