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| <div class="title">RussianStemmer.cs</div> </div> |
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| <a href="_analyzers_2_ru_2_russian_stemmer_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.Text;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span>Lucene.Net.Analysis.Ru</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> {</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * Russian stemming algorithm implementation (see http://snowball.sourceforge.net for detailed description).</span></div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00030"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ru_1_1_russian_stemmer.html"> 30</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_ru_1_1_russian_stemmer.html">RussianStemmer</a></div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  {</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="comment">// positions of RV, R1 and R2 respectively</span></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">private</span> <span class="keywordtype">int</span> RV, R1, R2;</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="comment">// letters (currently unused letters are commented out)</span></div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> A = <span class="stringliteral">'\u0430'</span>;</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">//private const char B = '\u0431';</span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> V = <span class="stringliteral">'\u0432'</span>;</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> G = <span class="stringliteral">'\u0433'</span>;</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">//private const char D = '\u0434';</span></div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> E = <span class="stringliteral">'\u0435'</span>;</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">//private const char ZH = '\u0436';</span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="comment">//private const char Z = '\u0437';</span></div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> I = <span class="stringliteral">'\u0438'</span>;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> I_ = <span class="stringliteral">'\u0439'</span>;</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="comment">//private const char K = '\u043A';</span></div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> L = <span class="stringliteral">'\u043B'</span>;</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> M = <span class="stringliteral">'\u043C'</span>;</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> N = <span class="stringliteral">'\u043D'</span>;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> O = <span class="stringliteral">'\u043E'</span>;</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">//private const char P = '\u043F';</span></div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">//private const char R = '\u0440';</span></div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> S = <span class="stringliteral">'\u0441'</span>;</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> T = <span class="stringliteral">'\u0442'</span>;</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> U = <span class="stringliteral">'\u0443'</span>;</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">//private const char F = '\u0444';</span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> X = <span class="stringliteral">'\u0445'</span>;</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">//private const char TS = '\u0446';</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="comment">//private const char CH = '\u0447';</span></div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> SH = <span class="stringliteral">'\u0448'</span>;</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> SHCH = <span class="stringliteral">'\u0449'</span>;</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">//private const char HARD = '\u044A';</span></div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> Y = <span class="stringliteral">'\u044B'</span>;</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> SOFT = <span class="stringliteral">'\u044C'</span>;</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> AE = <span class="stringliteral">'\u044D'</span>;</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> IU = <span class="stringliteral">'\u044E'</span>;</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> IA = <span class="stringliteral">'\u044F'</span>;</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="comment">// stem definitions</span></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[] vowels = { A, E, I, O, U, Y, AE, IU, IA };</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] perfectiveGerundEndings1 = {</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">new</span>[] {V},</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">new</span>[] {V, SH, I},</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">new</span>[] {V, SH, I, S, SOFT}</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  };</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] perfectiveGerund1Predessors = {</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">new</span>[] {A},</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">new</span>[] {IA}</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  };</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="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] perfectiveGerundEndings2 = {</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">new</span>[] {I, V},</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">new</span>[] {Y, V},</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">new</span>[] {I, V, SH, I},</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">new</span>[] {Y, V, SH, I},</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">new</span>[] {I, V, SH, I, S, SOFT},</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">new</span>[] {Y, V, SH, I, S, SOFT}</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  };</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] adjectiveEndings = {</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">new</span>[] {E, E},</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">new</span>[] {I, E},</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keyword">new</span>[] {Y, E},</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">new</span>[] {O, E},</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">new</span>[] {E, I_},</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">new</span>[] {I, I_},</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keyword">new</span>[] {Y, I_},</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">new</span>[] {O, I_},</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keyword">new</span>[] {E, M},</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">new</span>[] {I, M},</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">new</span>[] {Y, M},</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">new</span>[] {O, M},</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">new</span>[] {I, X},</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">new</span>[] {Y, X},</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">new</span>[] {U, IU},</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">new</span>[] {IU, IU},</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">new</span>[] {A, IA},</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">new</span>[] {IA, IA},</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">new</span>[] {O, IU},</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">new</span>[] {E, IU},</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">new</span>[] {I, M, I},</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">new</span>[] {Y, M, I},</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">new</span>[] {E, G, O},</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">new</span>[] {O, G, O},</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">new</span>[] {E, M, U},</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">new</span>[] {O, M, U}</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  };</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="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] participleEndings1 = {</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">new</span>[] {SHCH},</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">new</span>[] {E, M},</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">new</span>[] {N, N},</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">new</span>[] {V, SH},</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">new</span>[] {IU, SHCH}</div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  };</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] participleEndings2 = {</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">new</span>[] {I, V, SH},</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">new</span>[] {Y, V, SH},</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">new</span>[] {U, IU, SHCH}</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  };</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> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] participle1Predessors = {</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">new</span>[] {A},</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">new</span>[] {IA}</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> </div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] reflexiveEndings = {</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">new</span>[] {S, IA},</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">new</span>[] {S, SOFT}</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> </div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] verbEndings1 = {</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">new</span>[] {I_},</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">new</span>[] {L},</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">new</span>[] {N},</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">new</span>[] {L, O},</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">new</span>[] {N, O},</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">new</span>[] {E, T},</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keyword">new</span>[] {IU, T},</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">new</span>[] {L, A},</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">new</span>[] {N, A},</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">new</span>[] {L, I},</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">new</span>[] {E, M},</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">new</span>[] {N, Y},</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">new</span>[] {E, T, E},</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">new</span>[] {I_, T, E},</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">new</span>[] {T, SOFT},</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">new</span>[] {E, SH, SOFT},</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">new</span>[] {N, N, O}</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> </div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] verbEndings2 = {</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">new</span>[] {IU},</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">new</span>[] {U, IU},</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keyword">new</span>[] {E, N},</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">new</span>[] {E, I_},</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">new</span>[] {IA, T},</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">new</span>[] {U, I_},</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">new</span>[] {I, L},</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keyword">new</span>[] {Y, L},</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">new</span>[] {I, M},</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">new</span>[] {Y, M},</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keyword">new</span>[] {I, T},</div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">new</span>[] {Y, T},</div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keyword">new</span>[] {I, L, A},</div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keyword">new</span>[] {Y, L, A},</div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">new</span>[] {E, N, A},</div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">new</span>[] {I, T, E},</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">new</span>[] {I, L, I},</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">new</span>[] {Y, L, I},</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">new</span>[] {I, L, O},</div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">new</span>[] {Y, L, O},</div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">new</span>[] {E, N, O},</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">new</span>[] {U, E, T},</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">new</span>[] {U, IU, T},</div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keyword">new</span>[] {E, N, Y},</div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keyword">new</span>[] {I, T, SOFT},</div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">new</span>[] {Y, T, SOFT},</div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keyword">new</span>[] {I, SH, SOFT},</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">new</span>[] {E, I_, T, E},</div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keyword">new</span>[] {U, I_, T, E}</div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  };</div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] verb1Predessors = {</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keyword">new</span>[] {A},</div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">new</span>[] {IA}</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  };</div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] nounEndings = {</div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keyword">new</span>[] {A},</div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keyword">new</span>[] {U},</div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">new</span>[] {I_},</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">new</span>[] {O},</div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">new</span>[] {U},</div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keyword">new</span>[] {E},</div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">new</span>[] {Y},</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keyword">new</span>[] {I},</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">new</span>[] {SOFT},</div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keyword">new</span>[] {IA},</div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keyword">new</span>[] {E, V},</div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">new</span>[] {O, V},</div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">new</span>[] {I, E},</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keyword">new</span>[] {SOFT, E},</div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">new</span>[] {IA, X},</div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">new</span>[] {I, IU},</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">new</span>[] {E, I},</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">new</span>[] {I, I},</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keyword">new</span>[] {E, I_},</div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">new</span>[] {O, I_},</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">new</span>[] {E, M},</div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keyword">new</span>[] {A, M},</div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keyword">new</span>[] {O, M},</div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keyword">new</span>[] {A, X},</div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">new</span>[] {SOFT, IU},</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keyword">new</span>[] {I, IA},</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keyword">new</span>[] {SOFT, IA},</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keyword">new</span>[] {I, I_},</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">new</span>[] {IA, M},</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">new</span>[] {IA, M, I},</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keyword">new</span>[] {A, M, I},</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">new</span>[] {I, E, I_},</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keyword">new</span>[] {I, IA, M},</div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">new</span>[] {I, E, M},</div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">new</span>[] {I, IA, X},</div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">new</span>[] {I, IA, M, I}</div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  };</div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span> </div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] superlativeEndings = {</div> |
| <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keyword">new</span>[] {E, I_, SH},</div> |
| <div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keyword">new</span>[] {E, I_, SH, E}</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> </div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[][] derivationalEndings = {</div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keyword">new</span>[] {O, S, T},</div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keyword">new</span>[] {O, S, T, SOFT}</div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  };</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>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> * RussianStemmer constructor comment.</span></div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00254"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ru_1_1_russian_stemmer.html#adbcd179ceaf2015b6a622042d456d59d"> 254</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ru_1_1_russian_stemmer.html">RussianStemmer</a>()</div> |
| <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  {</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> </div> |
| <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="comment"> * Adjectival ending is an adjective ending,</span></div> |
| <div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment"> * optionally preceded by participle ending.</span></div> |
| <div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> adjectival(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  {</div> |
| <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="comment">// look for adjective ending in a stemming zone</span></div> |
| <div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">if</span> (!findAndRemoveEnding(stemmingZone, adjectiveEndings))</div> |
| <div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// if adjective ending was found, try for participle ending.</span></div> |
| <div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">// variable r is unused, we are just interested in the side effect of</span></div> |
| <div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// findAndRemoveEnding():</span></div> |
| <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordtype">bool</span> r =</div> |
| <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  findAndRemoveEnding(stemmingZone, participleEndings1, participle1Predessors)</div> |
| <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  ||</div> |
| <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  findAndRemoveEnding(stemmingZone, participleEndings2);</div> |
| <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">return</span> <span class="keyword">true</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> </div> |
| <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment"> * Derivational endings</span></div> |
| <div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> derivational(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  {</div> |
| <div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordtype">int</span> endingLength = findEnding(stemmingZone, derivationalEndings);</div> |
| <div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (endingLength == 0)</div> |
| <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="comment">// no derivational ending found</span></div> |
| <div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div> |
| <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// Ensure that the ending locates in R2</span></div> |
| <div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">if</span> (R2 - RV <= stemmingZone.Length - endingLength)</div> |
| <div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  {</div> |
| <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  stemmingZone.Length = stemmingZone.Length - endingLength;</div> |
| <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</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">else</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="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  }</div> |
| <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  }</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> </div> |
| <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="comment"> * Finds ending among given ending class and returns the length of ending found(0, if not found).</span></div> |
| <div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="comment"> * Creation date: (17/03/2002 8:18:34 PM)</span></div> |
| <div class="line"><a name="l00308"></a><span class="lineno"> 308</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keyword">private</span> <span class="keywordtype">int</span> findEnding(StringBuilder stemmingZone, <span class="keywordtype">int</span> startIndex, <span class="keywordtype">char</span>[][] theEndingClass)</div> |
| <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  {</div> |
| <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordtype">bool</span> match = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = theEndingClass.Length - 1; i >= 0; i--)</div> |
| <div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  {</div> |
| <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordtype">char</span>[] theEnding = theEndingClass[i];</div> |
| <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">// check if the ending is bigger than stemming zone</span></div> |
| <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">if</span> (startIndex < theEnding.Length - 1)</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>  match = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  }</div> |
| <div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  match = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordtype">int</span> stemmingIndex = startIndex;</div> |
| <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = theEnding.Length - 1; j >= 0; j--)</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">if</span> (stemmingZone[stemmingIndex--] != theEnding[j])</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>  match = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordflow">break</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>  <span class="comment">// check if ending was found</span></div> |
| <div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keywordflow">if</span> (match)</div> |
| <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  {</div> |
| <div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordflow">return</span> theEndingClass[i].Length; <span class="comment">// cut ending</span></div> |
| <div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div> |
| <div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  }</div> |
| <div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">return</span> 0;</div> |
| <div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  }</div> |
| <div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div> |
| <div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keyword">private</span> <span class="keywordtype">int</span> findEnding(StringBuilder stemmingZone, <span class="keywordtype">char</span>[][] theEndingClass)</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="keywordflow">return</span> findEnding(stemmingZone, stemmingZone.Length - 1, theEndingClass);</div> |
| <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  }</div> |
| <div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div> |
| <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="comment"> * Finds the ending among the given class of endings and removes it from stemming zone.</span></div> |
| <div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="comment"> * Creation date: (17/03/2002 8:18:34 PM)</span></div> |
| <div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> findAndRemoveEnding(StringBuilder stemmingZone, <span class="keywordtype">char</span>[][] theEndingClass)</div> |
| <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  {</div> |
| <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordtype">int</span> endingLength = findEnding(stemmingZone, theEndingClass);</div> |
| <div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">if</span> (endingLength == 0)</div> |
| <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// not found</span></div> |
| <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  {</div> |
| <div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  stemmingZone.Length = stemmingZone.Length - endingLength;</div> |
| <div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="comment">// cut the ending found</span></div> |
| <div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</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>  }</div> |
| <div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div> |
| <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="comment"> * Finds the ending among the given class of endings, then checks if this ending was</span></div> |
| <div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="comment"> * preceded by any of given predecessors, and if so, removes it from stemming zone.</span></div> |
| <div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="comment"> * Creation date: (17/03/2002 8:18:34 PM)</span></div> |
| <div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> findAndRemoveEnding(StringBuilder stemmingZone,</div> |
| <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordtype">char</span>[][] theEndingClass, <span class="keywordtype">char</span>[][] thePredessors)</div> |
| <div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  {</div> |
| <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordtype">int</span> endingLength = findEnding(stemmingZone, theEndingClass);</div> |
| <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">if</span> (endingLength == 0)</div> |
| <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="comment">// not found</span></div> |
| <div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  {</div> |
| <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordtype">int</span> predessorLength =</div> |
| <div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  findEnding(stemmingZone,</div> |
| <div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  stemmingZone.Length - endingLength - 1,</div> |
| <div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  thePredessors);</div> |
| <div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">if</span> (predessorLength == 0)</div> |
| <div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  {</div> |
| <div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  stemmingZone.Length = stemmingZone.Length - endingLength;</div> |
| <div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="comment">// cut the ending found</span></div> |
| <div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00388"></a><span class="lineno"> 388</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> </div> |
| <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="comment"> * Marks positions of RV, R1 and R2 in a given word.</span></div> |
| <div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="comment"> * Creation date: (16/03/2002 3:40:11 PM)</span></div> |
| <div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keyword">private</span> <span class="keywordtype">void</span> markPositions(String word)</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>  RV = 0;</div> |
| <div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  R1 = 0;</div> |
| <div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  R2 = 0;</div> |
| <div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordtype">int</span> i = 0;</div> |
| <div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="comment">// find RV</span></div> |
| <div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">while</span> (word.Length > i && !isVowel(word[i]))</div> |
| <div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  {</div> |
| <div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  i++;</div> |
| <div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  }</div> |
| <div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">if</span> (word.Length - 1 < ++i)</div> |
| <div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keywordflow">return</span>; <span class="comment">// RV zone is empty</span></div> |
| <div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  RV = i;</div> |
| <div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="comment">// find R1</span></div> |
| <div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">while</span> (word.Length > i && isVowel(word[i]))</div> |
| <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  {</div> |
| <div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  i++;</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="keywordflow">if</span> (word.Length - 1 < ++i)</div> |
| <div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">return</span>; <span class="comment">// R1 zone is empty</span></div> |
| <div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  R1 = i;</div> |
| <div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="comment">// find R2</span></div> |
| <div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordflow">while</span> (word.Length > i && !isVowel(word[i]))</div> |
| <div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  {</div> |
| <div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  i++;</div> |
| <div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  }</div> |
| <div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">if</span> (word.Length - 1 < ++i)</div> |
| <div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">return</span>; <span class="comment">// R2 zone is empty</span></div> |
| <div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">while</span> (word.Length > i && isVowel(word[i]))</div> |
| <div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  {</div> |
| <div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  i++;</div> |
| <div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  }</div> |
| <div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keywordflow">if</span> (word.Length - 1 < ++i)</div> |
| <div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">return</span>; <span class="comment">// R2 zone is empty</span></div> |
| <div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  R2 = i;</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="comment">/*</span></div> |
| <div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="comment"> * Checks if character is a vowel..</span></div> |
| <div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="comment"> * Creation date: (16/03/2002 10:47:03 PM)</span></div> |
| <div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="comment"> * @return bool</span></div> |
| <div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <span class="comment"> * @param letter char</span></div> |
| <div class="line"><a name="l00440"></a><span class="lineno"> 440</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> isVowel(<span class="keywordtype">char</span> letter)</div> |
| <div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  {</div> |
| <div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < vowels.Length; i++)</div> |
| <div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  {</div> |
| <div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordflow">if</span> (letter == vowels[i])</div> |
| <div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">return</span> <span class="keyword">true</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="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  }</div> |
| <div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div> |
| <div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="comment"> * Noun endings.</span></div> |
| <div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> noun(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  {</div> |
| <div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">return</span> findAndRemoveEnding(stemmingZone, nounEndings);</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> </div> |
| <div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="comment"> * Perfective gerund endings.</span></div> |
| <div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> perfectiveGerund(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  {</div> |
| <div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">return</span> findAndRemoveEnding(</div> |
| <div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  stemmingZone,</div> |
| <div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  perfectiveGerundEndings1,</div> |
| <div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  perfectiveGerund1Predessors)</div> |
| <div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  || findAndRemoveEnding(stemmingZone, perfectiveGerundEndings2);</div> |
| <div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  }</div> |
| <div class="line"><a name="l00474"></a><span class="lineno"> 474</span> </div> |
| <div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="comment"> * Reflexive endings.</span></div> |
| <div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> reflexive(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  {</div> |
| <div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">return</span> findAndRemoveEnding(stemmingZone, reflexiveEndings);</div> |
| <div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  }</div> |
| <div class="line"><a name="l00484"></a><span class="lineno"> 484</span> </div> |
| <div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="comment"> * Insert the method's description here.</span></div> |
| <div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> removeI(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  {</div> |
| <div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">if</span> (stemmingZone.Length > 0</div> |
| <div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  && stemmingZone[stemmingZone.Length - 1] == I)</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>  stemmingZone.Length = stemmingZone.Length - 1;</div> |
| <div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  }</div> |
| <div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">else</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="keywordflow">return</span> <span class="keyword">false</span>;</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>  }</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>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="comment"> * Insert the method's description here.</span></div> |
| <div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> removeSoft(StringBuilder stemmingZone)</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>  <span class="keywordflow">if</span> (stemmingZone.Length > 0</div> |
| <div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  && stemmingZone[stemmingZone.Length - 1] == SOFT)</div> |
| <div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  {</div> |
| <div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  stemmingZone.Length = stemmingZone.Length - 1;</div> |
| <div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  }</div> |
| <div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  {</div> |
| <div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  }</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="comment">/*</span></div> |
| <div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="comment"> * Finds the stem for given Russian word.</span></div> |
| <div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="comment"> * Creation date: (16/03/2002 3:36:48 PM)</span></div> |
| <div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="comment"> * @return java.lang.String</span></div> |
| <div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="comment"> * @param input java.lang.String</span></div> |
| <div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00529"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ru_1_1_russian_stemmer.html#a48309ac20b0f42a40cd980ba120f2248"> 529</a></span>  <span class="keyword">public</span> <span class="keyword">virtual</span> String Stem(String input)</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>  markPositions(input);</div> |
| <div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="keywordflow">if</span> (RV == 0)</div> |
| <div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">return</span> input; <span class="comment">//RV wasn't detected, nothing to stem</span></div> |
| <div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  StringBuilder stemmingZone = <span class="keyword">new</span> StringBuilder(input.Substring(RV));</div> |
| <div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="comment">// stemming goes on in RV</span></div> |
| <div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="comment">// Step 1</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>  <span class="keywordflow">if</span> (!perfectiveGerund(stemmingZone))</div> |
| <div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  {</div> |
| <div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  reflexive(stemmingZone);</div> |
| <div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="comment">// variable r is unused, we are just interested in the flow that gets</span></div> |
| <div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="comment">// created by logical expression: apply adjectival(); if that fails,</span></div> |
| <div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="comment">// apply verb() etc</span></div> |
| <div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keywordtype">bool</span> r =</div> |
| <div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  adjectival(stemmingZone)</div> |
| <div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  || Verb(stemmingZone)</div> |
| <div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  || noun(stemmingZone);</div> |
| <div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  }</div> |
| <div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="comment">// Step 2</span></div> |
| <div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  removeI(stemmingZone);</div> |
| <div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="comment">// Step 3</span></div> |
| <div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  derivational(stemmingZone);</div> |
| <div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="comment">// Step 4</span></div> |
| <div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  Superlative(stemmingZone);</div> |
| <div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  UndoubleN(stemmingZone);</div> |
| <div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  removeSoft(stemmingZone);</div> |
| <div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <span class="comment">// return result</span></div> |
| <div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keywordflow">return</span> input.Substring(0, RV) + stemmingZone.ToString();</div> |
| <div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  }</div> |
| <div class="line"><a name="l00560"></a><span class="lineno"> 560</span> </div> |
| <div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <span class="comment"> * Superlative endings.</span></div> |
| <div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> Superlative(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  {</div> |
| <div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keywordflow">return</span> findAndRemoveEnding(stemmingZone, superlativeEndings);</div> |
| <div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  }</div> |
| <div class="line"><a name="l00570"></a><span class="lineno"> 570</span> </div> |
| <div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="comment"> * Undoubles N.</span></div> |
| <div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> UndoubleN(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  {</div> |
| <div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordtype">char</span>[][] doubleN = {</div> |
| <div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keyword">new</span>[] {N, N}</div> |
| <div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  };</div> |
| <div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keywordflow">if</span> (findEnding(stemmingZone, doubleN) != 0)</div> |
| <div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  {</div> |
| <div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  stemmingZone.Length = stemmingZone.Length - 1;</div> |
| <div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  }</div> |
| <div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  {</div> |
| <div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  }</div> |
| <div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  }</div> |
| <div class="line"><a name="l00591"></a><span class="lineno"> 591</span> </div> |
| <div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="comment"> * Verb endings.</span></div> |
| <div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="comment"> * Creation date: (17/03/2002 12:14:58 AM)</span></div> |
| <div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="comment"> * @param stemmingZone java.lang.StringBuilder</span></div> |
| <div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keyword">private</span> <span class="keywordtype">bool</span> Verb(StringBuilder stemmingZone)</div> |
| <div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  {</div> |
| <div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <span class="keywordflow">return</span> findAndRemoveEnding(</div> |
| <div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  stemmingZone,</div> |
| <div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  verbEndings1,</div> |
| <div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  verb1Predessors)</div> |
| <div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  || findAndRemoveEnding(stemmingZone, verbEndings2);</div> |
| <div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  }</div> |
| <div class="line"><a name="l00605"></a><span class="lineno"> 605</span> </div> |
| <div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="comment"> * Static method for stemming.</span></div> |
| <div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00609"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ru_1_1_russian_stemmer.html#ad6e6e1393d3203e9c3875cc3d5d6250b"> 609</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> String StemWord(String theWord)</div> |
| <div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  {</div> |
| <div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ru_1_1_russian_stemmer.html">RussianStemmer</a> stemmer = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ru_1_1_russian_stemmer.html">RussianStemmer</a>();</div> |
| <div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="keywordflow">return</span> stemmer.<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_ru_1_1_russian_stemmer.html#a48309ac20b0f42a40cd980ba120f2248">Stem</a>(theWord);</div> |
| <div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  }</div> |
| <div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  }</div> |
| <div class="line"><a name="l00615"></a><span class="lineno"> 615</span> }</div> |
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