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| <div class="title">GradientFormatter.cs</div> </div> |
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| <a href="_gradient_formatter_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * this work for additional information regarding copyright ownership.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>Lucene.Net.Search.Highlight</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> {</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html"> 25</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html" title="Formats text with different color intensity depending on the score of the term. ">GradientFormatter</a> : <a class="code" href="interface_lucene_1_1_net_1_1_search_1_1_highlight_1_1_i_formatter.html" title="Processes terms found in the original text, typically by applying some form of mark-up to highlight t...">IFormatter</a></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="keyword">private</span> <span class="keywordtype">float</span> maxScore;</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">protected</span> <span class="keyword">internal</span> <span class="keywordtype">int</span> fgRMin, fgGMin, fgBMin;</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">protected</span> <span class="keyword">internal</span> <span class="keywordtype">int</span> fgRMax, fgGMax, fgBMax;</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html#a1b6873296437ac90756611694b6fadc3"> 31</a></span>  <span class="keyword">protected</span> <span class="keywordtype">bool</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html#a1b6873296437ac90756611694b6fadc3">highlightForeground</a>;</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">protected</span> <span class="keyword">internal</span> <span class="keywordtype">int</span> bgRMin, bgGMin, bgBMin;</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">protected</span> <span class="keyword">internal</span> <span class="keywordtype">int</span> bgRMax, bgGMax, bgBMax;</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html#a22614f768067dc477953f15fbb0b2ec3"> 34</a></span>  <span class="keyword">protected</span> <span class="keywordtype">bool</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html#a22614f768067dc477953f15fbb0b2ec3">highlightBackground</a>;</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div> |
| <div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html#a8e9cd06fd87043c18141e50f1f65247f"> 57</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html" title="Formats text with different color intensity depending on the score of the term. ">GradientFormatter</a>(<span class="keywordtype">float</span> maxScore, <span class="keywordtype">string</span> minForegroundColor, <span class="keywordtype">string</span> maxForegroundColor, <span class="keywordtype">string</span> minBackgroundColor, <span class="keywordtype">string</span> maxBackgroundColor)</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  {</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  highlightForeground = (minForegroundColor != null) && (maxForegroundColor != null);</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span> (highlightForeground)</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="keywordflow">if</span> (minForegroundColor.Length != 7)</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  {</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">"minForegroundColor is not 7 bytes long eg a hex "</span> + <span class="stringliteral">"RGB value such as #FFFFFF"</span>);</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (maxForegroundColor.Length != 7)</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="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">"minForegroundColor is not 7 bytes long eg a hex "</span> + <span class="stringliteral">"RGB value such as #FFFFFF"</span>);</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  fgRMin = HexToInt(minForegroundColor.Substring(1, 2));</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  fgGMin = HexToInt(minForegroundColor.Substring(3, 2));</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  fgBMin = HexToInt(minForegroundColor.Substring(5, 2));</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  fgRMax = HexToInt(maxForegroundColor.Substring(1, 2));</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  fgGMax = HexToInt(maxForegroundColor.Substring(3, 2));</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  fgBMax = HexToInt(maxForegroundColor.Substring(5, 2));</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  highlightBackground = (minBackgroundColor != null) && (maxBackgroundColor != null);</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">if</span> (highlightBackground)</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="keywordflow">if</span> (minBackgroundColor.Length != 7)</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  {</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.ArgumentException(<span class="stringliteral">"minBackgroundColor is not 7 bytes long eg a hex "</span> + <span class="stringliteral">"RGB value such as #FFFFFF"</span>);</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  }</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (maxBackgroundColor.Length != 7)</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  {</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.ArgumentException(<span class="stringliteral">"minBackgroundColor is not 7 bytes long eg a hex "</span> + <span class="stringliteral">"RGB value such as #FFFFFF"</span>);</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>  bgRMin = HexToInt(minBackgroundColor.Substring(1, 2));</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  bgGMin = HexToInt(minBackgroundColor.Substring(3, 2));</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  bgBMin = HexToInt(minBackgroundColor.Substring(5, 2));</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  </div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  bgRMax = HexToInt(maxBackgroundColor.Substring(1, 2));</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  bgGMax = HexToInt(maxBackgroundColor.Substring(3, 2));</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  bgBMax = HexToInt(maxBackgroundColor.Substring(5, 2));</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// this.corpusReader = corpusReader;</span></div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  this.maxScore = maxScore;</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// totalNumDocs = corpusReader.numDocs();</span></div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div> |
| <div class="line"><a name="l00104"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html#a8b4f3a8217fab56248ace5ac7fafc442"> 104</a></span>  <span class="keyword">public</span> <span class="keyword">virtual</span> <span class="keywordtype">string</span> HighlightTerm(<span class="keywordtype">string</span> originalText, <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_token_group.html" title="One, or several overlapping tokens, along with the score(s) and the scope of the original text ...">TokenGroup</a> tokenGroup)</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  {</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (tokenGroup.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_token_group.html#a0f2424ae7328d2d39b948e7faf6229d0" title="All tokens' scores summed up ">TotalScore</a> == 0)</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span> originalText;</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">float</span> score = tokenGroup.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_token_group.html#a0f2424ae7328d2d39b948e7faf6229d0" title="All tokens' scores summed up ">TotalScore</a>;</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (score == 0)</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  {</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> originalText;</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</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>  var sb = <span class="keyword">new</span> System.Text.StringBuilder();</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  sb.Append(<span class="stringliteral">"<font "</span>);</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (highlightForeground)</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  {</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  sb.Append(<span class="stringliteral">"color=\""</span>);</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  sb.Append(GetForegroundColorString(score));</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  sb.Append(<span class="stringliteral">"\" "</span>);</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">if</span> (highlightBackground)</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  {</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  sb.Append(<span class="stringliteral">"bgcolor=\""</span>);</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  sb.Append(GetBackgroundColorString(score));</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  sb.Append(<span class="stringliteral">"\" "</span>);</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>  sb.Append(<span class="stringliteral">">"</span>);</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  sb.Append(originalText);</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  sb.Append(<span class="stringliteral">"</font>"</span>);</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> sb.ToString();</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</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>  <span class="keyword">protected</span> <span class="keyword">internal</span> <span class="keyword">virtual</span> <span class="keywordtype">string</span> GetForegroundColorString(<span class="keywordtype">float</span> score)</div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  {</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">int</span> rVal = GetColorVal(fgRMin, fgRMax, score);</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordtype">int</span> gVal = GetColorVal(fgGMin, fgGMax, score);</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">int</span> bVal = GetColorVal(fgBMin, fgBMax, score);</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  var sb = <span class="keyword">new</span> System.Text.StringBuilder();</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  sb.Append(<span class="stringliteral">"#"</span>);</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  sb.Append(IntToHex(rVal));</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  sb.Append(IntToHex(gVal));</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  sb.Append(IntToHex(bVal));</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">return</span> sb.ToString();</div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  </div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">protected</span> <span class="keyword">internal</span> <span class="keyword">virtual</span> <span class="keywordtype">string</span> GetBackgroundColorString(<span class="keywordtype">float</span> score)</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  {</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">int</span> rVal = GetColorVal(bgRMin, bgRMax, score);</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordtype">int</span> gVal = GetColorVal(bgGMin, bgGMax, score);</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">int</span> bVal = GetColorVal(bgBMin, bgBMax, score);</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  var sb = <span class="keyword">new</span> System.Text.StringBuilder();</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  sb.Append(<span class="stringliteral">"#"</span>);</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  sb.Append(IntToHex(rVal));</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  sb.Append(IntToHex(gVal));</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  sb.Append(IntToHex(bVal));</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> sb.ToString();</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  </div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">private</span> <span class="keywordtype">int</span> GetColorVal(<span class="keywordtype">int</span> colorMin, <span class="keywordtype">int</span> colorMax, <span class="keywordtype">float</span> score)</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  {</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (colorMin == colorMax)</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">return</span> colorMin;</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>  <span class="keywordtype">float</span> scale = Math.Abs(colorMin - colorMax);</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">float</span> relScorePercent = Math.Min(maxScore, score) / maxScore;</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">float</span> colScore = scale * relScorePercent;</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">return</span> Math.Min(colorMin, colorMax) + (int) colScore;</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="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">char</span>[] hexDigits = <span class="keyword">new</span> <span class="keywordtype">char</span>[]{<span class="charliteral">'0'</span>, <span class="charliteral">'1'</span>, <span class="charliteral">'2'</span>, <span class="charliteral">'3'</span>, <span class="charliteral">'4'</span>, <span class="charliteral">'5'</span>, <span class="charliteral">'6'</span>, <span class="charliteral">'7'</span>, <span class="charliteral">'8'</span>, <span class="charliteral">'9'</span>, <span class="charliteral">'A'</span>, <span class="charliteral">'B'</span>, <span class="charliteral">'C'</span>, <span class="charliteral">'D'</span>, <span class="charliteral">'E'</span>, <span class="charliteral">'F'</span>};</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  </div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">string</span> IntToHex(<span class="keywordtype">int</span> i)</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  {</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> <span class="stringliteral">""</span> + hexDigits[(i & 0xF0) >> 4] + hexDigits[i & 0x0F];</div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  </div> |
| <div class="line"><a name="l00194"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_highlight_1_1_gradient_formatter.html#afd072131c91ac935019b71dfa24d8240"> 194</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">int</span> HexToInt(<span class="keywordtype">string</span> hex)</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>  <span class="keywordtype">int</span> len = hex.Length;</div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (len > 16)</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> FormatException();</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>  <span class="keywordtype">int</span> l = 0;</div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < len; i++)</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>  l <<= 4;</div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">int</span> c = (int) System.Char.GetNumericValue(hex[i]);</div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (c < 0)</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> FormatException();</div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  l |= c;</div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> l;</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span> }</div> |
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