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|  <span id="projectnumber">3.0.3</span> |
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| <a href="_analysis_8_ext_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"> 18</span> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">using</span> System.Collections;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">using</span> System.Collections.Generic;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">using</span> System.Text;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">using</span> System.IO;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">using</span> Lucene.Net.Analysis;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">using</span> Lucene.Net.Analysis.Tokenattributes;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">using</span> Lucene.Net.Util;</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> |
| <div class="line"><a name="l00029"></a><span class="lineno"><a class="code" href="namespace_lucene_1_1_net_1_1_analysis_1_1_ext.html"> 29</a></span> <span class="keyword">namespace </span>Lucene.Net.Analysis.Ext</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_single_char_token_analyzer.html"> 45</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_single_char_token_analyzer.html" title="This analyzer targets short fields where word like searches are required. [SomeUser@GMAIL.com 1234567890] will be tokenized as [s.o.m.e.u.s.e.r..g.m.a.i.l..com..1.2.3.4.5.6.7.8.9.0] (read .'s as blank)">SingleCharTokenAnalyzer</a> : <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_analyzer.html" title="An Analyzer builds TokenStreams, which analyze text. It thus represents a policy for extracting index...">Analyzer</a></div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  {</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_single_char_token_analyzer.html#a967c7e1892d74c94e02c9d89e3f2a312"> 49</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> <a class="code" href="_more_like_this_8cs.html#a205730fc8c2839cf92051d131140dae0">TokenStream</a>(<span class="keywordtype">string</span> fieldName, TextReader reader)</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>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> t = null;</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  t = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_letter_or_digit_tokenizer.html" title="if a char is not a letter or digit, it is a word separator ">LetterOrDigitTokenizer</a>(reader);</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  t = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_filter.html" title="Normalizes token text to lower case.">LowerCaseFilter</a>(t);</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  t = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_a_s_c_i_i_folding_filter.html" title="This class converts alphabetic, numeric, and symbolic Unicode characters which are not in the first 1...">ASCIIFoldingFilter</a>(t);</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  t = <span class="keyword">new</span> SingleCharTokenizer(t);</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> t;</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>  <span class="keyword">class </span>SingleCharTokenizer : <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_tokenizer.html" title="A Tokenizer is a TokenStream whose input is a Reader. This is an abstract class; subclasses must over...">Tokenizer</a></div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  {</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> _input = null;</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="interface_lucene_1_1_net_1_1_analysis_1_1_tokenattributes_1_1_i_term_attribute.html" title="The term text of a Token.">ITermAttribute</a> _termAttribute = null;</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="interface_lucene_1_1_net_1_1_analysis_1_1_tokenattributes_1_1_i_offset_attribute.html" title="The start and end character offset of a Token. ">IOffsetAttribute</a> _offsetAttribute = null;</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="interface_lucene_1_1_net_1_1_analysis_1_1_tokenattributes_1_1_i_position_increment_attribute.html" title="The positionIncrement determines the position of this token relative to the previous Token in a Token...">IPositionIncrementAttribute</a> _positionIncrementAttribute = null;</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">char</span>[] _buffer = null;</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">int</span> _offset = -1;</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">int</span> _length = -1;</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">int</span> _offsetInStream = -1;</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">public</span> SingleCharTokenizer(<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> input): base(input)</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  {</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  _input = input;</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  _termAttribute = AddAttribute<ITermAttribute>();</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  _offsetAttribute = AddAttribute<IOffsetAttribute>();</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  _positionIncrementAttribute = AddAttribute<IPositionIncrementAttribute>();</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> IncrementToken()</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  {</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">int</span> positionIncrement = 0;</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (_buffer == null || _offset >= _length)</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  {</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (!_input.IncrementToken()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  _offset = 0;</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  _buffer = _termAttribute.TermBuffer();</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  _length = _termAttribute.TermLength();</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  positionIncrement++;</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  _offsetInStream++;</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  _offsetAttribute.SetOffset(_offsetInStream, _offsetInStream + 1);</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  _offsetInStream++;</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  positionIncrement++;</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  _positionIncrementAttribute.PositionIncrement = positionIncrement;</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  _termAttribute.SetTermLength(1);</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  _termAttribute.SetTermBuffer(_buffer[_offset++].ToString());</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Reset()</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  {</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  _buffer = null;</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  _offset = -1;</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  _length = -1;</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  _offsetInStream = -1;</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  base.<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html#af7c4a3464dc78b1d0451492d9c520965" title="Resets this stream to the beginning. This is an optional operation, so subclasses may or may not impl...">Reset</a>();</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">protected</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Dispose(<span class="keywordtype">bool</span> disposing)</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  {</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  _input.Close();</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  base.Dispose(disposing);</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  }</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div> |
| <div class="line"><a name="l00133"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_unaccented_word_analyzer.html"> 133</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_unaccented_word_analyzer.html" title="Another Analyzer. Every char which is not a letter or digit is treated as a word separator. [Name.Surname@gmail.com 123.456 ğüşıöçĞÜŞİÖÇ$ΑΒΓΔΕΖ::АБВГДЕ SSß] will be tokenized as [name surname gmail com 123 456 gusioc gusioc αβγδεζ абвгде ssss]">UnaccentedWordAnalyzer</a> : <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_analyzer.html" title="An Analyzer builds TokenStreams, which analyze text. It thus represents a policy for extracting index...">Analyzer</a></div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  {</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_unaccented_word_analyzer.html#ab715694617300de2ad21e7dbdd5e80e2"> 137</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> <a class="code" href="_more_like_this_8cs.html#a205730fc8c2839cf92051d131140dae0">TokenStream</a>(<span class="keywordtype">string</span> fieldName, TextReader reader)</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  {</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> t = null;</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  t = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_letter_or_digit_tokenizer.html" title="if a char is not a letter or digit, it is a word separator ">LetterOrDigitTokenizer</a>(reader);</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  t = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_lower_case_filter.html" title="Normalizes token text to lower case.">LowerCaseFilter</a>(t);</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  t = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_a_s_c_i_i_folding_filter.html" title="This class converts alphabetic, numeric, and symbolic Unicode characters which are not in the first 1...">ASCIIFoldingFilter</a>(t);</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">return</span> t;</div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div> |
| <div class="line"><a name="l00151"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_letter_or_digit_tokenizer.html"> 151</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_letter_or_digit_tokenizer.html" title="if a char is not a letter or digit, it is a word separator ">LetterOrDigitTokenizer</a> : <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_char_tokenizer.html" title="An abstract base class for simple, character-oriented tokenizers.">CharTokenizer</a></div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  {</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_letter_or_digit_tokenizer.html#a925f06cbe3cffa8bffe734dc2c554e0b"> 155</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_letter_or_digit_tokenizer.html" title="if a char is not a letter or digit, it is a word separator ">LetterOrDigitTokenizer</a>(TextReader reader): base(reader)</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  {</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div> |
| <div class="line"><a name="l00161"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ext_1_1_letter_or_digit_tokenizer.html#a331923853becac1c2f13ccd10f2e893a"> 161</a></span>  <span class="keyword">protected</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> IsTokenChar(<span class="keywordtype">char</span> c)</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  {</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> <span class="keywordtype">char</span>.IsLetterOrDigit(c);</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> }</div> |
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