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| <a href="_pattern_analyzer_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"> *</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * with the License. You may obtain a copy of the License at</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"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * under the License.</span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">*/</span></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> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">using</span> System.Collections.Generic;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">using</span> System.IO;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">using</span> System.Text.RegularExpressions;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">using</span> Lucene.Net.Analysis.Tokenattributes;</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"><a class="code" href="_pattern_analyzer_8cs.html#a63c914dcb7d19365ff0f7c6ea7ef77c4"> 27</a></span> <span class="keyword">using</span> <a class="code" href="_arabic_analyzer_8cs.html#a63c914dcb7d19365ff0f7c6ea7ef77c4">Version</a> = Lucene.Net.Util.Version;</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>Lucene.Net.Analysis.Miscellaneous</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * Efficient Lucene analyzer/tokenizer that preferably operates on a String rather than a</span></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * {@link java.io.Reader}, that can flexibly separate text into terms via a regular expression {@link Regex}</span></div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * (with behaviour identical to {@link String#split(String)}),</span></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * and that combines the functionality of</span></div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * {@link org.apache.lucene.analysis.LetterTokenizer},</span></div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * {@link org.apache.lucene.analysis.LowerCaseTokenizer},</span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * {@link org.apache.lucene.analysis.WhitespaceTokenizer},</span></div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * {@link org.apache.lucene.analysis.StopFilter} into a single efficient</span></div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * multi-purpose class.</span></div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * <p></span></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * If you are unsure how exactly a regular expression should look like, consider </span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * prototyping by simply trying various expressions on some test texts via</span></div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * {@link String#split(String)}. Once you are satisfied, give that regex to </span></div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * RegexAnalyzer. Also see <a target="_blank" </span></div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * href="http://java.sun.com/docs/books/tutorial/extra/regex/">Java Regular Expression Tutorial</a>.</span></div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * <p></span></div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * This class can be considerably faster than the "normal" Lucene tokenizers. </span></div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * It can also serve as a building block in a compound Lucene</span></div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> * {@link org.apache.lucene.analysis.TokenFilter} chain. For example as in this </span></div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> * stemming example:</span></div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * <pre></span></div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * RegexAnalyzer pat = ...</span></div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * TokenStream tokenStream = new SnowballFilter(</span></div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * pat.tokenStream("content", "James is running round in the woods"), </span></div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * "English"));</span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * </pre></span></div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00060"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html"> 60</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_miscellaneous_1_1_pattern_analyzer.html">PatternAnalyzer</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="l00061"></a><span class="lineno"> 61</span>  {</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">/* <c>"\\W+"</c>; Divides text at non-letters (NOT char.IsLetter(c)) */</span></div> |
| <div class="line"><a name="l00064"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#a2694f45dbc16c7636b2e8a0cf6245892"> 64</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> readonly Regex NON_WORD_PATTERN = <span class="keyword">new</span> Regex(<span class="stringliteral">"\\W+"</span>, RegexOptions.Compiled);</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">/* <c>"\\s+"</c>; Divides text at whitespaces (char.IsWhitespace(c)) */</span></div> |
| <div class="line"><a name="l00067"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#aa5e8e88bb922674875caffa500bdfdf8"> 67</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> readonly Regex WHITESPACE_PATTERN = <span class="keyword">new</span> Regex(<span class="stringliteral">"\\s+"</span>, RegexOptions.Compiled);</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">private</span> <span class="keyword">static</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_char_array_set.html" title="A simple class that stores Strings as char[]'s in a hash table. Note that this is not a general purpo...">CharArraySet</a> EXTENDED_ENGLISH_STOP_WORDS =</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_char_array_set.html" title="A simple class that stores Strings as char[]'s in a hash table. Note that this is not a general purpo...">CharArraySet</a>.<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_char_array_set.html#a044a75a96e08ce42d40f81f4f160c4e6" title="Returns an unmodifiable CharArraySet. This allows to provide unmodifiable views of internal sets for ...">UnmodifiableSet</a>(<span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_char_array_set.html" title="A simple class that stores Strings as char[]'s in a hash table. Note that this is not a general purpo...">CharArraySet</a>((IEnumerable<string>)<span class="keyword">new</span>[]{</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="stringliteral">"a"</span>, <span class="stringliteral">"about"</span>, <span class="stringliteral">"above"</span>, <span class="stringliteral">"across"</span>, <span class="stringliteral">"adj"</span>, <span class="stringliteral">"after"</span>, <span class="stringliteral">"afterwards"</span>,</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="stringliteral">"again"</span>, <span class="stringliteral">"against"</span>, <span class="stringliteral">"albeit"</span>, <span class="stringliteral">"all"</span>, <span class="stringliteral">"almost"</span>, <span class="stringliteral">"alone"</span>, <span class="stringliteral">"along"</span>,</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="stringliteral">"already"</span>, <span class="stringliteral">"also"</span>, <span class="stringliteral">"although"</span>, <span class="stringliteral">"always"</span>, <span class="stringliteral">"among"</span>, <span class="stringliteral">"amongst"</span>, <span class="stringliteral">"an"</span>,</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="stringliteral">"and"</span>, <span class="stringliteral">"another"</span>, <span class="stringliteral">"any"</span>, <span class="stringliteral">"anyhow"</span>, <span class="stringliteral">"anyone"</span>, <span class="stringliteral">"anything"</span>,</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="stringliteral">"anywhere"</span>, <span class="stringliteral">"are"</span>, <span class="stringliteral">"around"</span>, <span class="stringliteral">"as"</span>, <span class="stringliteral">"at"</span>, <span class="stringliteral">"be"</span>, <span class="stringliteral">"became"</span>, <span class="stringliteral">"because"</span>,</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="stringliteral">"become"</span>, <span class="stringliteral">"becomes"</span>, <span class="stringliteral">"becoming"</span>, <span class="stringliteral">"been"</span>, <span class="stringliteral">"before"</span>, <span class="stringliteral">"beforehand"</span>,</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="stringliteral">"behind"</span>, <span class="stringliteral">"being"</span>, <span class="stringliteral">"below"</span>, <span class="stringliteral">"beside"</span>, <span class="stringliteral">"besides"</span>, <span class="stringliteral">"between"</span>,</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="stringliteral">"beyond"</span>, <span class="stringliteral">"both"</span>, <span class="stringliteral">"but"</span>, <span class="stringliteral">"by"</span>, <span class="stringliteral">"can"</span>, <span class="stringliteral">"cannot"</span>, <span class="stringliteral">"co"</span>, <span class="stringliteral">"could"</span>,</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="stringliteral">"down"</span>, <span class="stringliteral">"during"</span>, <span class="stringliteral">"each"</span>, <span class="stringliteral">"eg"</span>, <span class="stringliteral">"either"</span>, <span class="stringliteral">"else"</span>, <span class="stringliteral">"elsewhere"</span>,</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="stringliteral">"enough"</span>, <span class="stringliteral">"etc"</span>, <span class="stringliteral">"even"</span>, <span class="stringliteral">"ever"</span>, <span class="stringliteral">"every"</span>, <span class="stringliteral">"everyone"</span>, <span class="stringliteral">"everything"</span>,</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="stringliteral">"everywhere"</span>, <span class="stringliteral">"except"</span>, <span class="stringliteral">"few"</span>, <span class="stringliteral">"first"</span>, <span class="stringliteral">"for"</span>, <span class="stringliteral">"former"</span>,</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="stringliteral">"formerly"</span>, <span class="stringliteral">"from"</span>, <span class="stringliteral">"further"</span>, <span class="stringliteral">"had"</span>, <span class="stringliteral">"has"</span>, <span class="stringliteral">"have"</span>, <span class="stringliteral">"he"</span>, <span class="stringliteral">"hence"</span>,</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="stringliteral">"her"</span>, <span class="stringliteral">"here"</span>, <span class="stringliteral">"hereafter"</span>, <span class="stringliteral">"hereby"</span>, <span class="stringliteral">"herein"</span>, <span class="stringliteral">"hereupon"</span>, <span class="stringliteral">"hers"</span>,</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="stringliteral">"herself"</span>, <span class="stringliteral">"him"</span>, <span class="stringliteral">"himself"</span>, <span class="stringliteral">"his"</span>, <span class="stringliteral">"how"</span>, <span class="stringliteral">"however"</span>, <span class="stringliteral">"i"</span>, <span class="stringliteral">"ie"</span>, <span class="stringliteral">"if"</span>,</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="stringliteral">"in"</span>, <span class="stringliteral">"inc"</span>, <span class="stringliteral">"indeed"</span>, <span class="stringliteral">"into"</span>, <span class="stringliteral">"is"</span>, <span class="stringliteral">"it"</span>, <span class="stringliteral">"its"</span>, <span class="stringliteral">"itself"</span>, <span class="stringliteral">"last"</span>,</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="stringliteral">"latter"</span>, <span class="stringliteral">"latterly"</span>, <span class="stringliteral">"least"</span>, <span class="stringliteral">"less"</span>, <span class="stringliteral">"ltd"</span>, <span class="stringliteral">"many"</span>, <span class="stringliteral">"may"</span>, <span class="stringliteral">"me"</span>,</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="stringliteral">"meanwhile"</span>, <span class="stringliteral">"might"</span>, <span class="stringliteral">"more"</span>, <span class="stringliteral">"moreover"</span>, <span class="stringliteral">"most"</span>, <span class="stringliteral">"mostly"</span>, <span class="stringliteral">"much"</span>,</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="stringliteral">"must"</span>, <span class="stringliteral">"my"</span>, <span class="stringliteral">"myself"</span>, <span class="stringliteral">"namely"</span>, <span class="stringliteral">"neither"</span>, <span class="stringliteral">"never"</span>,</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="stringliteral">"nevertheless"</span>, <span class="stringliteral">"next"</span>, <span class="stringliteral">"no"</span>, <span class="stringliteral">"nobody"</span>, <span class="stringliteral">"none"</span>, <span class="stringliteral">"noone"</span>, <span class="stringliteral">"nor"</span>,</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="stringliteral">"not"</span>, <span class="stringliteral">"nothing"</span>, <span class="stringliteral">"now"</span>, <span class="stringliteral">"nowhere"</span>, <span class="stringliteral">"of"</span>, <span class="stringliteral">"off"</span>, <span class="stringliteral">"often"</span>, <span class="stringliteral">"on"</span>,</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="stringliteral">"once one"</span>, <span class="stringliteral">"only"</span>, <span class="stringliteral">"onto"</span>, <span class="stringliteral">"or"</span>, <span class="stringliteral">"other"</span>, <span class="stringliteral">"others"</span>, <span class="stringliteral">"otherwise"</span>,</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="stringliteral">"our"</span>, <span class="stringliteral">"ours"</span>, <span class="stringliteral">"ourselves"</span>, <span class="stringliteral">"out"</span>, <span class="stringliteral">"over"</span>, <span class="stringliteral">"own"</span>, <span class="stringliteral">"per"</span>, <span class="stringliteral">"perhaps"</span>,</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="stringliteral">"rather"</span>, <span class="stringliteral">"s"</span>, <span class="stringliteral">"same"</span>, <span class="stringliteral">"seem"</span>, <span class="stringliteral">"seemed"</span>, <span class="stringliteral">"seeming"</span>, <span class="stringliteral">"seems"</span>,</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="stringliteral">"several"</span>, <span class="stringliteral">"she"</span>, <span class="stringliteral">"should"</span>, <span class="stringliteral">"since"</span>, <span class="stringliteral">"so"</span>, <span class="stringliteral">"some"</span>, <span class="stringliteral">"somehow"</span>,</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="stringliteral">"someone"</span>, <span class="stringliteral">"something"</span>, <span class="stringliteral">"sometime"</span>, <span class="stringliteral">"sometimes"</span>, <span class="stringliteral">"somewhere"</span>,</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="stringliteral">"still"</span>, <span class="stringliteral">"such"</span>, <span class="stringliteral">"t"</span>, <span class="stringliteral">"than"</span>, <span class="stringliteral">"that"</span>, <span class="stringliteral">"the"</span>, <span class="stringliteral">"their"</span>, <span class="stringliteral">"them"</span>,</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="stringliteral">"themselves"</span>, <span class="stringliteral">"then"</span>, <span class="stringliteral">"thence"</span>, <span class="stringliteral">"there"</span>, <span class="stringliteral">"thereafter"</span>, <span class="stringliteral">"thereby"</span>,</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="stringliteral">"therefor"</span>, <span class="stringliteral">"therein"</span>, <span class="stringliteral">"thereupon"</span>, <span class="stringliteral">"these"</span>, <span class="stringliteral">"they"</span>, <span class="stringliteral">"this"</span>,</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="stringliteral">"those"</span>, <span class="stringliteral">"though"</span>, <span class="stringliteral">"through"</span>, <span class="stringliteral">"throughout"</span>, <span class="stringliteral">"thru"</span>, <span class="stringliteral">"thus"</span>, <span class="stringliteral">"to"</span>,</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="stringliteral">"together"</span>, <span class="stringliteral">"too"</span>, <span class="stringliteral">"toward"</span>, <span class="stringliteral">"towards"</span>, <span class="stringliteral">"under"</span>, <span class="stringliteral">"until"</span>, <span class="stringliteral">"up"</span>,</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="stringliteral">"upon"</span>, <span class="stringliteral">"us"</span>, <span class="stringliteral">"very"</span>, <span class="stringliteral">"via"</span>, <span class="stringliteral">"was"</span>, <span class="stringliteral">"we"</span>, <span class="stringliteral">"well"</span>, <span class="stringliteral">"were"</span>, <span class="stringliteral">"what"</span>,</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="stringliteral">"whatever"</span>, <span class="stringliteral">"whatsoever"</span>, <span class="stringliteral">"when"</span>, <span class="stringliteral">"whence"</span>, <span class="stringliteral">"whenever"</span>,</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="stringliteral">"whensoever"</span>, <span class="stringliteral">"where"</span>, <span class="stringliteral">"whereafter"</span>, <span class="stringliteral">"whereas"</span>, <span class="stringliteral">"whereat"</span>,</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="stringliteral">"whereby"</span>, <span class="stringliteral">"wherefrom"</span>, <span class="stringliteral">"wherein"</span>, <span class="stringliteral">"whereinto"</span>, <span class="stringliteral">"whereof"</span>,</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="stringliteral">"whereon"</span>, <span class="stringliteral">"whereto"</span>, <span class="stringliteral">"whereunto"</span>, <span class="stringliteral">"whereupon"</span>, <span class="stringliteral">"wherever"</span>,</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="stringliteral">"wherewith"</span>, <span class="stringliteral">"whether"</span>, <span class="stringliteral">"which"</span>, <span class="stringliteral">"whichever"</span>, <span class="stringliteral">"whichsoever"</span>,</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="stringliteral">"while"</span>, <span class="stringliteral">"whilst"</span>, <span class="stringliteral">"whither"</span>, <span class="stringliteral">"who"</span>, <span class="stringliteral">"whoever"</span>, <span class="stringliteral">"whole"</span>, <span class="stringliteral">"whom"</span>,</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="stringliteral">"whomever"</span>, <span class="stringliteral">"whomsoever"</span>, <span class="stringliteral">"whose"</span>, <span class="stringliteral">"whosoever"</span>, <span class="stringliteral">"why"</span>, <span class="stringliteral">"will"</span>,</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="stringliteral">"with"</span>, <span class="stringliteral">"within"</span>, <span class="stringliteral">"without"</span>, <span class="stringliteral">"would"</span>, <span class="stringliteral">"xsubj"</span>, <span class="stringliteral">"xcal"</span>, <span class="stringliteral">"xauthor"</span>,</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="stringliteral">"xother "</span>, <span class="stringliteral">"xnote"</span>, <span class="stringliteral">"yet"</span>, <span class="stringliteral">"you"</span>, <span class="stringliteral">"your"</span>, <span class="stringliteral">"yours"</span>, <span class="stringliteral">"yourself"</span>,</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="stringliteral">"yourselves"</span></div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }, <span class="keyword">true</span>));</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>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> * A lower-casing word analyzer with English stop words (can be shared</span></div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> * freely across threads without harm); global per class loader.</span></div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00118"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#a844dd30b1102d9b4b4e2af0da41bac09"> 118</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html">PatternAnalyzer</a> DEFAULT_ANALYZER = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html">PatternAnalyzer</a>(</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="_arabic_analyzer_8cs.html#a63c914dcb7d19365ff0f7c6ea7ef77c4">Version</a>.LUCENE_CURRENT, NON_WORD_PATTERN, <span class="keyword">true</span>, <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_analyzer.html" title="Filters LetterTokenizer with LowerCaseFilter and StopFilter.">StopAnalyzer</a>.<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_analyzer.html#a0025ccacf9cc663348b25d827d3a7473" title="An unmodifiable set containing some common English words that are not usually useful for searching...">ENGLISH_STOP_WORDS_SET</a>);</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"> * A lower-casing word analyzer with <b>extended </b> English stop words</span></div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"> * (can be shared freely across threads without harm); global per class</span></div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> * loader. The stop words are borrowed from</span></div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> * http://thomas.loc.gov/home/stopwords.html, see</span></div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> * http://thomas.loc.gov/home/all.about.inquery.html</span></div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#a1ed298ca513421f9be999e151804b452"> 128</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html">PatternAnalyzer</a> EXTENDED_ANALYZER = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html">PatternAnalyzer</a>(</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="_arabic_analyzer_8cs.html#a63c914dcb7d19365ff0f7c6ea7ef77c4">Version</a>.LUCENE_CURRENT, NON_WORD_PATTERN, <span class="keyword">true</span>, EXTENDED_ENGLISH_STOP_WORDS);</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">private</span> readonly Regex Regex;</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">private</span> readonly <span class="keywordtype">bool</span> toLowerCase;</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keyword">private</span> readonly ISet<string> stopWords;</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">private</span> readonly <a class="code" href="_arabic_analyzer_8cs.html#a63c914dcb7d19365ff0f7c6ea7ef77c4">Version</a> matchVersion;</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> * Constructs a new instance with the given parameters.</span></div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> * @param matchVersion If >= {@link Version#LUCENE_29}, StopFilter.enablePositionIncrement is set to true</span></div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> * @param Regex</span></div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> * a regular expression delimiting tokens</span></div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> * @param toLowerCase</span></div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"> * if <c>true</c> returns tokens after applying</span></div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment"> * String.toLowerCase()</span></div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"> * @param stopWords</span></div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment"> * if non-null, ignores all tokens that are contained in the</span></div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment"> * given stop set (after previously having applied toLowerCase()</span></div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment"> * if applicable). For example, created via</span></div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment"> * {@link StopFilter#makeStopSet(String[])}and/or</span></div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment"> * {@link org.apache.lucene.analysis.WordlistLoader}as in</span></div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment"> * <c>WordlistLoader.getWordSet(new File("samples/fulltext/stopwords.txt")</c></span></div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment"> * or <a href="http://www.unine.ch/info/clef/">other stop words</span></div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment"> * lists </a>.</span></div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00156"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#a1b84b5fb5d32ad2fb0e1569ebabf8d7c"> 156</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html">PatternAnalyzer</a>(<a class="code" href="_arabic_analyzer_8cs.html#a63c914dcb7d19365ff0f7c6ea7ef77c4">Version</a> matchVersion, Regex Regex, <span class="keywordtype">bool</span> toLowerCase, ISet<string> stopWords)</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>  <span class="keywordflow">if</span> (Regex == null)</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">"Regex must not be null"</span>);</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">if</span> (EqRegex(NON_WORD_PATTERN, Regex)) Regex = NON_WORD_PATTERN;</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (EqRegex(WHITESPACE_PATTERN, Regex)) Regex = WHITESPACE_PATTERN;</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (stopWords != null && stopWords.Count == 0) stopWords = null;</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>  this.Regex = Regex;</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  this.toLowerCase = toLowerCase;</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  this.stopWords = stopWords;</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  this.matchVersion = matchVersion;</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  }</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"> * Creates a token stream that tokenizes the given string into token terms</span></div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> * (aka words).</span></div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> * @param fieldName</span></div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> * the name of the field to tokenize (currently ignored).</span></div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> * @param text</span></div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"> * the string to tokenize</span></div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment"> * @return a new token stream</span></div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00182"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#ad0fcedef210f7950475b3efec6b59ac7"> 182</a></span>  <span class="keyword">public</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>(String fieldName, String text)</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  {</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// Ideally the Analyzer superclass should have a method with the same signature, </span></div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// with a default impl that simply delegates to the StringReader flavour. </span></div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">if</span> (text == null)</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">"text must not be null"</span>);</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</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> stream;</div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (Regex == NON_WORD_PATTERN)</div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  { <span class="comment">// fast path</span></div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  stream = <span class="keyword">new</span> FastStringTokenizer(text, <span class="keyword">true</span>, toLowerCase, stopWords);</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (Regex == WHITESPACE_PATTERN)</div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  { <span class="comment">// fast path</span></div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  stream = <span class="keyword">new</span> FastStringTokenizer(text, <span class="keyword">false</span>, toLowerCase, stopWords);</div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  {</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  stream = <span class="keyword">new</span> RegexTokenizer(text, Regex, toLowerCase);</div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (stopWords != null) stream = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html" title="Removes stop words from a token stream.">StopFilter</a>(<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html" title="Removes stop words from a token stream.">StopFilter</a>.<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html#ab11fb0a8f9564b60ae61e29bef912ca8" title="Returns version-dependent default for enablePositionIncrements. Analyzers that embed StopFilter use t...">GetEnablePositionIncrementsVersionDefault</a>(matchVersion), stream, stopWords);</div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">return</span> stream;</div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  }</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> * Creates a token stream that tokenizes all the text in the given Reader;</span></div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> * This implementation forwards to <c>tokenStream(String, String)</c> and is</span></div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> * less efficient than <c>tokenStream(String, String)</c>.</span></div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> * @param fieldName</span></div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> * the name of the field to tokenize (currently ignored).</span></div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> * @param reader</span></div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment"> * the reader delivering the text</span></div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment"> * @return a new token stream</span></div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00218"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#ad278c06160de04493b2c5ae66c632c2d"> 218</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>(String fieldName, TextReader reader)</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  {</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">if</span> (reader is FastStringReader)</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  { <span class="comment">// fast path</span></div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span> <a class="code" href="_more_like_this_8cs.html#a205730fc8c2839cf92051d131140dae0">TokenStream</a>(fieldName, ((FastStringReader)reader).GetString());</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  }</div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  {</div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  String text = ToString(reader);</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">return</span> <a class="code" href="_more_like_this_8cs.html#a205730fc8c2839cf92051d131140dae0">TokenStream</a>(fieldName, text);</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">catch</span> (IOException e)</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  {</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> Exception(<span class="stringliteral">"Wrapped Exception"</span>, e);</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment"> * Indicates whether some other object is "equal to" this one.</span></div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"> * @param other</span></div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"> * the reference object with which to compare.</span></div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> * @return true if equal, false otherwise</span></div> |
| <div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00243"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#abecfa7788544977325bf1b2638522368"> 243</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> Equals(Object other)</div> |
| <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  {</div> |
| <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">if</span> (<span class="keyword">this</span> == other) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">if</span> (<span class="keyword">this</span> == DEFAULT_ANALYZER && other == EXTENDED_ANALYZER) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">if</span> (other == DEFAULT_ANALYZER && <span class="keyword">this</span> == EXTENDED_ANALYZER) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">if</span> (other is <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html">PatternAnalyzer</a>)</div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  {</div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  PatternAnalyzer p2 = (PatternAnalyzer)other;</div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">return</span></div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  toLowerCase == p2.toLowerCase &&</div> |
| <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  EqRegex(Regex, p2.Regex) &&</div> |
| <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  Eq(stopWords, p2.stopWords);</div> |
| <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  }</div> |
| <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</div> |
| <div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div> |
| <div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment"> * Returns a hash code value for the object.</span></div> |
| <div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> * @return the hash code.</span></div> |
| <div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00265"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_miscellaneous_1_1_pattern_analyzer.html#ad9e8fa00c8364419adee57023c2f15bc"> 265</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetHashCode()</div> |
| <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  {</div> |
| <div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">if</span> (<span class="keyword">this</span> == DEFAULT_ANALYZER) <span class="keywordflow">return</span> -1218418418; <span class="comment">// fast path</span></div> |
| <div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordflow">if</span> (<span class="keyword">this</span> == EXTENDED_ANALYZER) <span class="keywordflow">return</span> 1303507063; <span class="comment">// fast path</span></div> |
| <div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div> |
| <div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordtype">int</span> h = 1;</div> |
| <div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  h = 31 * h + Regex.GetHashCode();</div> |
| <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  h = 31 * h + (int)Regex.Options;</div> |
| <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  h = 31 * h + (toLowerCase ? 1231 : 1237);</div> |
| <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  h = 31 * h + (stopWords != null ? stopWords.GetHashCode() : 0);</div> |
| <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">return</span> h;</div> |
| <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  }</div> |
| <div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div> |
| <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">/* equality where o1 and/or o2 can be null */</span></div> |
| <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> Eq(Object o1, Object o2)</div> |
| <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  {</div> |
| <div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">return</span> (o1 == o2) || (o1 != null ? o1.Equals(o2) : <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  }</div> |
| <div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div> |
| <div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">/* assumes p1 and p2 are not null */</span></div> |
| <div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> EqRegex(Regex p1, Regex p2)</div> |
| <div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  {</div> |
| <div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">return</span> p1 == p2 || (p1.Options == p2.Options && p1.ToString() == p2.ToString());</div> |
| <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  }</div> |
| <div class="line"><a name="l00289"></a><span class="lineno"> 289</span> </div> |
| <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment"> * Reads until end-of-stream and returns all read chars, finally closes the stream.</span></div> |
| <div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment"> * @param input the input stream</span></div> |
| <div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment"> * @throws IOException if an I/O error occurs while reading the stream</span></div> |
| <div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keyword">private</span> <span class="keyword">static</span> String ToString(TextReader input)</div> |
| <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  {</div> |
| <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  {</div> |
| <div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordtype">int</span> len = 256;</div> |
| <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordtype">char</span>[] buffer = <span class="keyword">new</span> <span class="keywordtype">char</span>[len];</div> |
| <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordtype">char</span>[] output = <span class="keyword">new</span> <span class="keywordtype">char</span>[len];</div> |
| <div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div> |
| <div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  len = 0;</div> |
| <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordtype">int</span> n;</div> |
| <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">while</span> ((n = input.Read(buffer, 0, buffer.Length)) != 0)</div> |
| <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  {</div> |
| <div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">if</span> (len + n > output.Length)</div> |
| <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  { <span class="comment">// grow capacity</span></div> |
| <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordtype">char</span>[] tmp = <span class="keyword">new</span> <span class="keywordtype">char</span>[Math.Max(output.Length << 1, len + n)];</div> |
| <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  Array.Copy(output, 0, tmp, 0, len);</div> |
| <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  Array.Copy(buffer, 0, tmp, len, n);</div> |
| <div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  buffer = output; <span class="comment">// use larger buffer for future larger bulk reads</span></div> |
| <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  output = tmp;</div> |
| <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  }</div> |
| <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  {</div> |
| <div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  Array.Copy(buffer, 0, output, len, n);</div> |
| <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div> |
| <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  len += n;</div> |
| <div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  }</div> |
| <div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div> |
| <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> String(output, 0, len);</div> |
| <div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  }</div> |
| <div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordflow">finally</span></div> |
| <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  {</div> |
| <div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">if</span> (input != null) input.Dispose();</div> |
| <div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div> |
| <div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  }</div> |
| <div class="line"><a name="l00330"></a><span class="lineno"> 330</span> </div> |
| <div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div> |
| <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// Nested classes:</span></div> |
| <div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="comment"></span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="comment"> * The work horse; performance isn't fantastic, but it's not nearly as bad</span></div> |
| <div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="comment"> * as one might think - kudos to the Sun regex developers.</span></div> |
| <div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keyword">private</span> sealed <span class="keyword">class </span>RegexTokenizer : <a class="code" href="_more_like_this_8cs.html#a205730fc8c2839cf92051d131140dae0">TokenStream</a></div> |
| <div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  {</div> |
| <div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div> |
| <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keyword">private</span> readonly String str;</div> |
| <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keyword">private</span> readonly <span class="keywordtype">bool</span> toLowerCase;</div> |
| <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keyword">private</span> Match matcher;</div> |
| <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keyword">private</span> <span class="keywordtype">int</span> pos = 0;</div> |
| <div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keyword">private</span> <span class="keyword">static</span> readonly System.Globalization.CultureInfo locale = System.Globalization.CultureInfo.CurrentCulture;</div> |
| <div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keyword">private</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> termAtt;</div> |
| <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keyword">private</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> offsetAtt;</div> |
| <div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div> |
| <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keyword">public</span> RegexTokenizer(String str, Regex regex, <span class="keywordtype">bool</span> toLowerCase)</div> |
| <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  {</div> |
| <div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  this.str = str;</div> |
| <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  this.matcher = regex.Match(str);</div> |
| <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  this.toLowerCase = toLowerCase;</div> |
| <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  this.termAtt = AddAttribute<ITermAttribute>();</div> |
| <div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  this.offsetAtt = AddAttribute<IOffsetAttribute>();</div> |
| <div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div> |
| <div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div> |
| <div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keyword">public</span> sealed <span class="keyword">override</span> <span class="keywordtype">bool</span> IncrementToken()</div> |
| <div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  {</div> |
| <div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">if</span> (matcher == null) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  ClearAttributes();</div> |
| <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div> |
| <div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  { <span class="comment">// loop takes care of leading and trailing boundary cases</span></div> |
| <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordtype">int</span> start = pos;</div> |
| <div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordtype">int</span> end;</div> |
| <div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keywordtype">bool</span> isMatch = matcher.Success;</div> |
| <div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">if</span> (isMatch)</div> |
| <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  {</div> |
| <div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  end = matcher.Index;</div> |
| <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  pos = matcher.Index + matcher.Length;</div> |
| <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  matcher = matcher.NextMatch();</div> |
| <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  }</div> |
| <div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  {</div> |
| <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  end = str.Length;</div> |
| <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  matcher = null; <span class="comment">// we're finished</span></div> |
| <div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  }</div> |
| <div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div> |
| <div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordflow">if</span> (start != end)</div> |
| <div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  { <span class="comment">// non-empty match (header/trailer)</span></div> |
| <div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  String text = str.Substring(start, end - start);</div> |
| <div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">if</span> (toLowerCase) text = text.ToLower(locale);</div> |
| <div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  termAtt.SetTermBuffer(text);</div> |
| <div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  offsetAtt.SetOffset(start, end);</div> |
| <div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  }</div> |
| <div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  }</div> |
| <div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  }</div> |
| <div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div> |
| <div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keyword">public</span> <span class="keyword">override</span> sealed <span class="keywordtype">void</span> End()</div> |
| <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  {</div> |
| <div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// set final offset</span></div> |
| <div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordtype">int</span> finalOffset = str.Length;</div> |
| <div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  this.offsetAtt.SetOffset(finalOffset, finalOffset);</div> |
| <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  }</div> |
| <div class="line"><a name="l00398"></a><span class="lineno"> 398</span> </div> |
| <div class="line"><a name="l00399"></a><span class="lineno"> 399</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="l00400"></a><span class="lineno"> 400</span>  {</div> |
| <div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="comment">// Do Nothing</span></div> |
| <div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  }</div> |
| <div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  }</div> |
| <div class="line"><a name="l00404"></a><span class="lineno"> 404</span> </div> |
| <div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div> |
| <div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="comment">// Nested classes:</span></div> |
| <div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="comment"></span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="comment"> * Special-case class for best performance in common cases; this class is</span></div> |
| <div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="comment"> * otherwise unnecessary.</span></div> |
| <div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keyword">private</span> sealed <span class="keyword">class </span>FastStringTokenizer : <a class="code" href="_more_like_this_8cs.html#a205730fc8c2839cf92051d131140dae0">TokenStream</a></div> |
| <div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  {</div> |
| <div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div> |
| <div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keyword">private</span> readonly String str;</div> |
| <div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keyword">private</span> <span class="keywordtype">int</span> pos;</div> |
| <div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keyword">private</span> readonly <span class="keywordtype">bool</span> isLetter;</div> |
| <div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keyword">private</span> readonly <span class="keywordtype">bool</span> toLowerCase;</div> |
| <div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keyword">private</span> readonly ISet<string> stopWords;</div> |
| <div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keyword">private</span> <span class="keyword">static</span> readonly System.Globalization.CultureInfo locale = System.Globalization.CultureInfo.CurrentCulture;</div> |
| <div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keyword">private</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> termAtt;</div> |
| <div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keyword">private</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> offsetAtt;</div> |
| <div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div> |
| <div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keyword">public</span> FastStringTokenizer(String str, <span class="keywordtype">bool</span> isLetter, <span class="keywordtype">bool</span> toLowerCase, ISet<string> stopWords)</div> |
| <div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  {</div> |
| <div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  this.str = str;</div> |
| <div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  this.isLetter = isLetter;</div> |
| <div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  this.toLowerCase = toLowerCase;</div> |
| <div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  this.stopWords = stopWords;</div> |
| <div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  this.termAtt = AddAttribute<ITermAttribute>();</div> |
| <div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  this.offsetAtt = AddAttribute<IOffsetAttribute>();</div> |
| <div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  }</div> |
| <div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div> |
| <div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> IncrementToken()</div> |
| <div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  {</div> |
| <div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  ClearAttributes();</div> |
| <div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">// cache loop instance vars (performance)</span></div> |
| <div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  String s = str;</div> |
| <div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordtype">int</span> len = s.Length;</div> |
| <div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordtype">int</span> i = pos;</div> |
| <div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordtype">bool</span> letter = isLetter;</div> |
| <div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div> |
| <div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keywordtype">int</span> start = 0;</div> |
| <div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  String text;</div> |
| <div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">do</span></div> |
| <div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  {</div> |
| <div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="comment">// find beginning of token</span></div> |
| <div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  text = null;</div> |
| <div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keywordflow">while</span> (i < len && !IsTokenChar(s[i], letter))</div> |
| <div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  {</div> |
| <div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  i++;</div> |
| <div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  }</div> |
| <div class="line"><a name="l00454"></a><span class="lineno"> 454</span> </div> |
| <div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="keywordflow">if</span> (i < len)</div> |
| <div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  { <span class="comment">// found beginning; now find end of token</span></div> |
| <div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  start = i;</div> |
| <div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">while</span> (i < len && IsTokenChar(s[i], letter))</div> |
| <div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  {</div> |
| <div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  i++;</div> |
| <div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  }</div> |
| <div class="line"><a name="l00462"></a><span class="lineno"> 462</span> </div> |
| <div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  text = s.Substring(start, i - start);</div> |
| <div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordflow">if</span> (toLowerCase) text = text.ToLower(locale);</div> |
| <div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="comment">// if (toLowerCase) { </span></div> |
| <div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="comment"></span> <span class="comment">// text = s.substring(start, i).toLowerCase(); </span></div> |
| <div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="comment"></span> <span class="comment">// } else {</span></div> |
| <div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="comment">// text = s.substring(start, i);</span></div> |
| <div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="comment">// }</span></div> |
| <div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  }</div> |
| <div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  } <span class="keywordflow">while</span> (text != null && IsStopWord(text));</div> |
| <div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div> |
| <div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  pos = i;</div> |
| <div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordflow">if</span> (text == null)</div> |
| <div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  {</div> |
| <div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  }</div> |
| <div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  termAtt.SetTermBuffer(text);</div> |
| <div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  offsetAtt.SetOffset(start, i);</div> |
| <div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  }</div> |
| <div class="line"><a name="l00487"></a><span class="lineno"> 487</span> </div> |
| <div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="keyword">public</span> <span class="keyword">override</span> sealed <span class="keywordtype">void</span> End()</div> |
| <div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  {</div> |
| <div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="comment">// set final offset</span></div> |
| <div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordtype">int</span> finalOffset = str.Length;</div> |
| <div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  this.offsetAtt.SetOffset(finalOffset, finalOffset);</div> |
| <div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  }</div> |
| <div class="line"><a name="l00494"></a><span class="lineno"> 494</span> </div> |
| <div class="line"><a name="l00495"></a><span class="lineno"> 495</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="l00496"></a><span class="lineno"> 496</span>  {</div> |
| <div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="comment">// Do Nothing</span></div> |
| <div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  }</div> |
| <div class="line"><a name="l00499"></a><span class="lineno"> 499</span> </div> |
| <div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> IsTokenChar(<span class="keywordtype">char</span> c, <span class="keywordtype">bool</span> isLetter)</div> |
| <div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  {</div> |
| <div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keywordflow">return</span> isLetter ? <span class="keywordtype">char</span>.IsLetter(c) : !<span class="keywordtype">char</span>.IsWhiteSpace(c);</div> |
| <div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  }</div> |
| <div class="line"><a name="l00504"></a><span class="lineno"> 504</span> </div> |
| <div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> IsStopWord(<span class="keywordtype">string</span> text)</div> |
| <div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  {</div> |
| <div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">return</span> stopWords != null && stopWords.Contains(text);</div> |
| <div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  }</div> |
| <div class="line"><a name="l00509"></a><span class="lineno"> 509</span> </div> |
| <div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  }</div> |
| <div class="line"><a name="l00511"></a><span class="lineno"> 511</span> </div> |
| <div class="line"><a name="l00512"></a><span class="lineno"> 512</span> </div> |
| <div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="comment">// Nested classes:</span></div> |
| <div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="comment"></span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <span class="comment"> * A StringReader that exposes it's contained string for fast direct access.</span></div> |
| <div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="comment"> * Might make sense to generalize this to CharSequence and make it public?</span></div> |
| <div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keyword">internal</span> sealed <span class="keyword">class </span>FastStringReader : StringReader</div> |
| <div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  {</div> |
| <div class="line"><a name="l00522"></a><span class="lineno"> 522</span> </div> |
| <div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keyword">private</span> readonly <span class="keywordtype">string</span> s;</div> |
| <div class="line"><a name="l00524"></a><span class="lineno"> 524</span> </div> |
| <div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keyword">protected</span> <span class="keyword">internal</span> FastStringReader(<span class="keywordtype">string</span> s)</div> |
| <div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  : base(s)</div> |
| <div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  {</div> |
| <div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  this.s = s;</div> |
| <div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  }</div> |
| <div class="line"><a name="l00530"></a><span class="lineno"> 530</span> </div> |
| <div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keyword">internal</span> <span class="keywordtype">string</span> GetString()</div> |
| <div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  {</div> |
| <div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">return</span> s;</div> |
| <div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  }</div> |
| <div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  }</div> |
| <div class="line"><a name="l00536"></a><span class="lineno"> 536</span> </div> |
| <div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  }</div> |
| <div class="line"><a name="l00538"></a><span class="lineno"> 538</span> }</div> |
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