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<article class="content wrap" id="_content" data-uid="Lucene.Net.Analysis.Tokenizer">
<h1 id="Lucene_Net_Analysis_Tokenizer" data-uid="Lucene.Net.Analysis.Tokenizer" class="text-break">Class Tokenizer
</h1>
<div class="markdown level0 summary"><p>A <a class="xref" href="Lucene.Net.Analysis.Tokenizer.html">Tokenizer</a> is a <a class="xref" href="Lucene.Net.Analysis.TokenStream.html">TokenStream</a> whose input is a <span class="xref">System.IO.TextReader</span>.
<p>
This is an abstract class; subclasses must override <a class="xref" href="Lucene.Net.Analysis.TokenStream.html#Lucene_Net_Analysis_TokenStream_IncrementToken">IncrementToken()</a>
<p>
NOTE: Subclasses overriding <a class="xref" href="Lucene.Net.Analysis.TokenStream.html#Lucene_Net_Analysis_TokenStream_IncrementToken">IncrementToken()</a> must
call <a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_ClearAttributes">ClearAttributes()</a> before
setting attributes.</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"><a class="xref" href="Lucene.Net.Util.AttributeSource.html">AttributeSource</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.Analysis.TokenStream.html">TokenStream</a></div>
<div class="level3"><span class="xref">Tokenizer</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>
<a class="xref" href="Lucene.Net.Analysis.TokenStream.html#Lucene_Net_Analysis_TokenStream_IncrementToken">TokenStream.IncrementToken()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Analysis.TokenStream.html#Lucene_Net_Analysis_TokenStream_End">TokenStream.End()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Analysis.TokenStream.html#Lucene_Net_Analysis_TokenStream_Dispose">TokenStream.Dispose()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_GetAttributeFactory">AttributeSource.GetAttributeFactory()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_GetAttributeClassesEnumerator">AttributeSource.GetAttributeClassesEnumerator()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_GetAttributeImplsEnumerator">AttributeSource.GetAttributeImplsEnumerator()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_AddAttributeImpl_Lucene_Net_Util_Attribute_">AttributeSource.AddAttributeImpl(Attribute)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_AddAttribute__1">AttributeSource.AddAttribute&lt;T&gt;()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_HasAttributes">AttributeSource.HasAttributes</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_HasAttribute__1">AttributeSource.HasAttribute&lt;T&gt;()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_GetAttribute__1">AttributeSource.GetAttribute&lt;T&gt;()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_ClearAttributes">AttributeSource.ClearAttributes()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_CaptureState">AttributeSource.CaptureState()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_RestoreState_Lucene_Net_Util_AttributeSource_State_">AttributeSource.RestoreState(AttributeSource.State)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_GetHashCode">AttributeSource.GetHashCode()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_Equals_System_Object_">AttributeSource.Equals(Object)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_ReflectAsString_System_Boolean_">AttributeSource.ReflectAsString(Boolean)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_ReflectWith_Lucene_Net_Util_IAttributeReflector_">AttributeSource.ReflectWith(IAttributeReflector)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_CloneAttributes">AttributeSource.CloneAttributes()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_CopyTo_Lucene_Net_Util_AttributeSource_">AttributeSource.CopyTo(AttributeSource)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Util.AttributeSource.html#Lucene_Net_Util_AttributeSource_ToString">AttributeSource.ToString()</a>
</div>
<div>
<span class="xref">System.Object.Equals(System.Object, System.Object)</span>
</div>
<div>
<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.html">Lucene.Net.Analysis</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.dll</h6>
<h5 id="Lucene_Net_Analysis_Tokenizer_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public abstract class Tokenizer : TokenStream, 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-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Analysis_Tokenizer__ctor_Lucene_Net_Util_AttributeSource_AttributeFactory_System_IO_TextReader_.md&amp;value=---%0Auid%3A%20Lucene.Net.Analysis.Tokenizer.%23ctor(Lucene.Net.Util.AttributeSource.AttributeFactory%2CSystem.IO.TextReader)%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 id="Lucene_Net_Analysis_Tokenizer__ctor_" data-uid="Lucene.Net.Analysis.Tokenizer.#ctor*"></a>
<h4 id="Lucene_Net_Analysis_Tokenizer__ctor_Lucene_Net_Util_AttributeSource_AttributeFactory_System_IO_TextReader_" data-uid="Lucene.Net.Analysis.Tokenizer.#ctor(Lucene.Net.Util.AttributeSource.AttributeFactory,System.IO.TextReader)">Tokenizer(AttributeSource.AttributeFactory, TextReader)</h4>
<div class="markdown level1 summary"><p>Construct a token stream processing the given input using the given <a class="xref" href="Lucene.Net.Util.AttributeSource.AttributeFactory.html">AttributeSource.AttributeFactory</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected Tokenizer(AttributeSource.AttributeFactory factory, TextReader input)</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><a class="xref" href="Lucene.Net.Util.AttributeSource.AttributeFactory.html">AttributeSource.AttributeFactory</a></td>
<td><span class="parametername">factory</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.IO.TextReader</span></td>
<td><span class="parametername">input</span></td>
<td></td>
</tr>
</tbody>
</table>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
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<a id="Lucene_Net_Analysis_Tokenizer__ctor_" data-uid="Lucene.Net.Analysis.Tokenizer.#ctor*"></a>
<h4 id="Lucene_Net_Analysis_Tokenizer__ctor_System_IO_TextReader_" data-uid="Lucene.Net.Analysis.Tokenizer.#ctor(System.IO.TextReader)">Tokenizer(TextReader)</h4>
<div class="markdown level1 summary"><p>Construct a token stream processing the given input. </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected Tokenizer(TextReader input)</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">System.IO.TextReader</span></td>
<td><span class="parametername">input</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="fields">Fields
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Analysis_Tokenizer_m_input.md&amp;value=---%0Auid%3A%20Lucene.Net.Analysis.Tokenizer.m_input%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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</span>
<h4 id="Lucene_Net_Analysis_Tokenizer_m_input" data-uid="Lucene.Net.Analysis.Tokenizer.m_input">m_input</h4>
<div class="markdown level1 summary"><p>The text source for this <a class="xref" href="Lucene.Net.Analysis.Tokenizer.html">Tokenizer</a>. </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected TextReader m_input</code></pre>
</div>
<h5 class="fieldValue">Field Value</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.IO.TextReader</span></td>
<td></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-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Analysis_Tokenizer_CorrectOffset_System_Int32_.md&amp;value=---%0Auid%3A%20Lucene.Net.Analysis.Tokenizer.CorrectOffset(System.Int32)%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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</span>
<a id="Lucene_Net_Analysis_Tokenizer_CorrectOffset_" data-uid="Lucene.Net.Analysis.Tokenizer.CorrectOffset*"></a>
<h4 id="Lucene_Net_Analysis_Tokenizer_CorrectOffset_System_Int32_" data-uid="Lucene.Net.Analysis.Tokenizer.CorrectOffset(System.Int32)">CorrectOffset(Int32)</h4>
<div class="markdown level1 summary"><p>Return the corrected offset. If <a class="xref" href="Lucene.Net.Analysis.Tokenizer.html#Lucene_Net_Analysis_Tokenizer_m_input">m_input</a> is a <a class="xref" href="Lucene.Net.Analysis.CharFilter.html">CharFilter</a> subclass
this method calls <a class="xref" href="Lucene.Net.Analysis.CharFilter.html#Lucene_Net_Analysis_CharFilter_CorrectOffset_System_Int32_">CorrectOffset(Int32)</a>, else returns <code data-dev-comment-type="paramref" class="paramref">currentOff</code>. </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected int CorrectOffset(int currentOff)</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">System.Int32</span></td>
<td><span class="parametername">currentOff</span></td>
<td><p>offset as seen in the output </p>
</td>
</tr>
</tbody>
</table>
<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.Int32</span></td>
<td><p>corrected offset based on the input </p>
</td>
</tr>
</tbody>
</table>
<h5 id="Lucene_Net_Analysis_Tokenizer_CorrectOffset_System_Int32__seealso">See Also</h5>
<div class="seealso">
<div><a class="xref" href="Lucene.Net.Analysis.CharFilter.html#Lucene_Net_Analysis_CharFilter_CorrectOffset_System_Int32_">CorrectOffset(Int32)</a></div>
</div>
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<a id="Lucene_Net_Analysis_Tokenizer_Dispose_" data-uid="Lucene.Net.Analysis.Tokenizer.Dispose*"></a>
<h4 id="Lucene_Net_Analysis_Tokenizer_Dispose_System_Boolean_" data-uid="Lucene.Net.Analysis.Tokenizer.Dispose(System.Boolean)">Dispose(Boolean)</h4>
<div class="markdown level1 summary"><p>Releases resources associated with this stream.
<p>
If you override this method, always call <code>base.Dispose(disposing)</code>, otherwise
some internal state will not be correctly reset (e.g., <a class="xref" href="Lucene.Net.Analysis.Tokenizer.html">Tokenizer</a> will
throw <span class="xref">System.InvalidOperationException</span> on reuse).</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected override void Dispose(bool disposing)</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">System.Boolean</span></td>
<td><span class="parametername">disposing</span></td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="Lucene.Net.Analysis.TokenStream.html#Lucene_Net_Analysis_TokenStream_Dispose_System_Boolean_">TokenStream.Dispose(Boolean)</a></div>
<h5 id="Lucene_Net_Analysis_Tokenizer_Dispose_System_Boolean__remarks">Remarks</h5>
<div class="markdown level1 remarks"><p><strong>NOTE:</strong>
The default implementation closes the input <span class="xref">System.IO.TextReader</span>, so
be sure to call <code>base.Dispose(disposing)</code> when overriding this method.</p>
</div>
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<a id="Lucene_Net_Analysis_Tokenizer_Reset_" data-uid="Lucene.Net.Analysis.Tokenizer.Reset*"></a>
<h4 id="Lucene_Net_Analysis_Tokenizer_Reset" data-uid="Lucene.Net.Analysis.Tokenizer.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><a class="xref" href="Lucene.Net.Analysis.TokenStream.html#Lucene_Net_Analysis_TokenStream_Reset">TokenStream.Reset()</a></div>
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<a id="Lucene_Net_Analysis_Tokenizer_SetReader_" data-uid="Lucene.Net.Analysis.Tokenizer.SetReader*"></a>
<h4 id="Lucene_Net_Analysis_Tokenizer_SetReader_System_IO_TextReader_" data-uid="Lucene.Net.Analysis.Tokenizer.SetReader(System.IO.TextReader)">SetReader(TextReader)</h4>
<div class="markdown level1 summary"><p>Expert: Set a new reader on the <a class="xref" href="Lucene.Net.Analysis.Tokenizer.html">Tokenizer</a>. Typically, an
analyzer (in its tokenStream method) will use
this to re-use a previously created tokenizer.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public void SetReader(TextReader input)</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">System.IO.TextReader</span></td>
<td><span class="parametername">input</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="implements">Implements</h3>
<div>
<span class="xref">System.IDisposable</span>
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