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| <div class="title">LowerCaseTokenizer.cs</div> </div> |
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| <a href="_lower_case_tokenizer_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* </span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * this work for additional information regarding copyright ownership.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"><a class="code" href="_lower_case_tokenizer_8cs.html#aed60c4e663aea1a7dec59cf4c3710058"> 18</a></span> <span class="keyword">using</span> <a class="code" href="_char_tokenizer_8cs.html#aed60c4e663aea1a7dec59cf4c3710058">AttributeSource</a> = Lucene.Net.Util.AttributeSource;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>Lucene.Net.Analysis</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> {</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div> |
| <div class="line"><a name="l00032"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_tokenizer.html"> 32</a></span>  <span class="keyword">public</span> sealed <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_tokenizer.html" title="LowerCaseTokenizer performs the function of LetterTokenizer and LowerCaseFilter together. It divides text at non-letters and converts them to lower case. While it is functionally equivalent to the combination of LetterTokenizer and LowerCaseFilter, there is a performance advantage to doing the two tasks at once, hence this (redundant) implementation. Note: this does a decent job for most European languages, but does a terrible job for some Asian languages, where words are not separated by spaces. ">LowerCaseTokenizer</a>:<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_letter_tokenizer.html" title="A LetterTokenizer is a tokenizer that divides text at non-letters. That's to say, it defines tokens a...">LetterTokenizer</a></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  {</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_tokenizer.html#addefde5348078ad10a3de048d73c8351"> 35</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_tokenizer.html" title="LowerCaseTokenizer performs the function of LetterTokenizer and LowerCaseFilter together. It divides text at non-letters and converts them to lower case. While it is functionally equivalent to the combination of LetterTokenizer and LowerCaseFilter, there is a performance advantage to doing the two tasks at once, hence this (redundant) implementation. Note: this does a decent job for most European languages, but does a terrible job for some Asian languages, where words are not separated by spaces. ">LowerCaseTokenizer</a>(System.IO.TextReader @in)</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  : base(@in)</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  }</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div> |
| <div class="line"><a name="l00041"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_tokenizer.html#ae8202122be2d80657fd696fc7e341875"> 41</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_tokenizer.html" title="LowerCaseTokenizer performs the function of LetterTokenizer and LowerCaseFilter together. It divides text at non-letters and converts them to lower case. While it is functionally equivalent to the combination of LetterTokenizer and LowerCaseFilter, there is a performance advantage to doing the two tasks at once, hence this (redundant) implementation. Note: this does a decent job for most European languages, but does a terrible job for some Asian languages, where words are not separated by spaces. ">LowerCaseTokenizer</a>(<a class="code" href="_char_tokenizer_8cs.html#aed60c4e663aea1a7dec59cf4c3710058">AttributeSource</a> source, System.IO.TextReader @in)</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  : base(source, @in)</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  {</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div> |
| <div class="line"><a name="l00047"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_tokenizer.html#aff6b26ab82bcc96ee1de12209b1490c7"> 47</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_tokenizer.html" title="LowerCaseTokenizer performs the function of LetterTokenizer and LowerCaseFilter together. It divides text at non-letters and converts them to lower case. While it is functionally equivalent to the combination of LetterTokenizer and LowerCaseFilter, there is a performance advantage to doing the two tasks at once, hence this (redundant) implementation. Note: this does a decent job for most European languages, but does a terrible job for some Asian languages, where words are not separated by spaces. ">LowerCaseTokenizer</a>(<a class="code" href="class_lucene_1_1_net_1_1_util_1_1_attribute_source_1_1_attribute_factory.html" title="An AttributeFactory creates instances of Attributes.">AttributeFactory</a> factory, System.IO.TextReader @in)</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  : base(factory, @in)</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  {</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  </div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">protected</span> <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">char</span> Normalize(<span class="keywordtype">char</span> c)</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">return</span> System.Char.ToLower(c);</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> }</div> |
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