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annotate lucene/src/luan/modules/lucene/Web_search.luan @ 325:78a6a71afbfd

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use SimplyHTML git-svn-id: https://luan-java.googlecode.com/svn/trunk@326 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Tue, 03 Mar 2015 06:00:59 +0000
parents 7f7708e8fdd4
children fb18724521d2
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321
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1 local Luan = require "luan:Luan"
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2 local load = Luan.load
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3 local to_number = Luan.to_number
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4 local pairs = Luan.pairs
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5 local ipairs = Luan.ipairs
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6 local range = Luan.range
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7 local Io = require "luan:Io"
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8 local Http = require "luan:web/Http"
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9 local String = require "luan:String"
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10 local Html = require "luan:Html"
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11
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12
325
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13 local function form()
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14 Html.simple_html_page{
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15 head = function() %>
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16 <title>Lucene Query</title>
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17 <% end;
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18 body = function() %>
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19 <div container>
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20 <h3 margin-top="1.5em">Lucene Query</h3>
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21 <form horizontal name="form0" method="post" margin-top="2em">
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22 <div row>
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23 <div colspan=2 align="right">
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24 <label>Query:</label>
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25 </div>
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26 <div colspan=10>
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27 <input name="query" size="80" value="Query.all_docs" autofocus />
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28 <div textcolor="#888">Query examples: <i>Query.term{ type = 'user' }</i> or <i>"type:user AND name:Joe"</i></div>
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29 </div>
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30 </div>
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31 <div row margin-top="1em">
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32 <div colspan=2 align="right">
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33 <label>Max Rows:</label>
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34 </div>
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35 <div colspan=10>
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36 <input name="rows" value="100" size="3" maxlength="5" /></p>
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37 </div>
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38 </div>
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39 <div row margin-top="1em">
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40 <div colspan=2 align="right">
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41 <label>Sort:</label>
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42 </div>
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43 <div colspan=10>
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44 <input name="sort" size="60" />
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45 <div textcolor="#888">Sort examples: Query.sort{{ field = 'id', type='int' }}</div>
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46 </div>
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47 </div>
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48 <div row margin-top="1em">
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49 <div colspan=2></div>
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50 <div colspan=10>
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51 <input type="submit" textcolor="white" bgcolor="#337ab7" large/>
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52 </div>
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53 </div>
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54 </form>
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55 </div>
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56 <% end;
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57 }
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58 end
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59
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60
325
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61 local function result(query,sort,headers,table)
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62 Html.simple_html_page{
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63 body = function() %>
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64 <div container>
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65 <h3 margin-top="1.5em">Lucene Query Results</h3>
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66 <div row>
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67 <div colspan=2 align="right">
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68 <label>Query:</label>
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69 </div>
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70 <div colspan=10>
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71 <b><%=query%></b></p>
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72 </div>
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73 </div>
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74 <div row>
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75 <div colspan=2 align="right">
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76 <label>Sort:</label>
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77 </div>
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78 <div colspan=10>
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79 <b><%=sort%></b></p>
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80 </div>
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81 </div>
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82 <table border condensed margin-top="1.5em">
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83 <tr>
325
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84 <th></th>
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85 <% for _, header in ipairs(headers) do %>
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86 <th><%=header%></th>
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87 <% end %>
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88 </tr>
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89 <% for i, row in ipairs(table) do %>
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90 <tr>
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91 <td><%=i%></td>
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92 <% for col in range(1, #headers) do %>
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93 <td><%= row[col] or "" %></td>
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94 <% end %>
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95 </tr>
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96 <% end %>
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97 </table>
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98 </div>
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99 <% end;
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100 }
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101 end
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102
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103
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104 local function index_of(tbl,val)
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105 for i, v in ipairs(tbl) do
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106 if v == val then
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107 return i
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108 end
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109 end
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110 local n = #tbl + 1
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111 tbl[n] = val
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112 return n
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113 end
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114
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115
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116 function of(index)
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117
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118 return { service = function()
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119 Io.stdout = Http.response.text_writer()
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120 local query_string = Http.request.parameters.query
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121 if query_string == nil then
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122 form()
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123 return
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124 end
287
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125 local query = load(query_string,"<query>",{Query=index.Query},true)()
285
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126 local rows = to_number(Http.request.parameters.rows)
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127 local sort = load(Http.request.parameters.sort,"<sort>",{Query=index.Query},true)()
285
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128 index.Searcher( function(searcher)
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129 local results, length, total_hits = searcher.search(query,rows,sort)
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130 local headers = {}
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131 local table = {}
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132 for doc in results do
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133 local row = {}
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134 for field, value in pairs(doc) do
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135 row[index_of(headers,field)] = value
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136 end
582e8db4cdb6 add lucene Web_search
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137 table[#table+1] = row
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138 end
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139 result(query,sort,headers,table)
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140 end )
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141 end }
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142
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143 end