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annotate lucene/src/luan/modules/lucene/Web_search.luan @ 550:b2139b21b49c 0.10

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use Io.repr() in lucene/Web_search
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 17 Jun 2015 19:50:32 -0600
parents c69b4833a3a3
children 363d07e26549
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1 local Luan = require "luan:Luan"
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2 local error = Luan.error
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3 local pairs = Luan.pairs or error()
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4 local ipairs = Luan.ipairs or error()
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5 local range = Luan.range or error()
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6 local to_string = Luan.to_string or error()
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7 local Io = require "luan:Io"
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8 local repr = Io.repr or error()
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9 local Http = require "luan:http/Http"
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10 local String = require "luan:String"
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11 local string_to_number = String.to_number or error()
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12 local Html = require "luan:Html"
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13
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14 local M = {}
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16 local function form() %>
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17 <html>
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18 <head>
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19 <% Html.simply_html_head() %>
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20 <title>Lucene Query</title>
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21 </head>
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22 <body>
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23 <div container>
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24 <h3 margin-top="1.5em">Lucene Query</h3>
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25 <form horizontal name="form0" method="post" margin-top="2em">
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26 <div row>
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27 <div colspan=2 align="right">
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28 <label>Query:</label>
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29 </div>
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30 <div colspan=10>
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31 <input name="query" size="80" autofocus />
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32 <div textcolor="#888">Query examples: <i>type:user</i> or <i>+type:user +name:Joe"</i></div>
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33 </div>
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34 </div>
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35 <div row margin-top="1em">
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36 <div colspan=2 align="right">
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37 <label>Max Rows:</label>
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38 </div>
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39 <div colspan=10>
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40 <input name="rows" value="100" size="3" maxlength="5" /></p>
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41 </div>
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42 </div>
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43 <div row margin-top="1em">
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44 <div colspan=2 align="right">
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45 <label>Sort:</label>
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46 </div>
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47 <div colspan=10>
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48 <input name="sort" size="60" />
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49 <div textcolor="#888">Sort examples: <i>name, id</i></div>
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50 </div>
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51 </div>
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52 <div row margin-top="1em">
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53 <div colspan=2></div>
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54 <div colspan=10>
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55 <input type="submit" textcolor="white" bgcolor="#337ab7" large/>
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56 </div>
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57 </div>
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58 </form>
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59 </div>
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60 <% Html.simply_html_body_bottom() %>
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61 </body>
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62 </html>
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63 <% end
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64
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65
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66 local function result(query,sort,headers,table) %>
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67 <html>
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68 <head>
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69 <% Html.simply_html_head() %>
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70 <title>Lucene Query</title>
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71 </head>
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72 <body>
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73 <div container>
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74 <h3 margin-top="1.5em">Lucene Query Results</h3>
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75 <div row>
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76 <div colspan=2 align="right">
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77 <label>Query:</label>
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78 </div>
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79 <div colspan=10>
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80 <b><%=Html.encode(to_string(query))%></b></p>
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81 </div>
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82 </div>
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83 <div row>
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84 <div colspan=2 align="right">
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85 <label>Sort:</label>
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86 </div>
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87 <div colspan=10>
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88 <b><%=Html.encode(to_string(sort))%></b></p>
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89 </div>
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90 </div>
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91 <table border condensed margin-top="1.5em">
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92 <tr>
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93 <th></th>
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94 <% for _, header in ipairs(headers) do %>
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95 <th><%=header%></th>
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96 <% end %>
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97 </tr>
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98 <% for i, row in ipairs(table) do %>
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99 <tr>
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100 <td><%=i%></td>
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101 <%
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102 for col in range(1, #headers) do
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103 local val = row[col]
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104 %><td><%= val and repr(val) or "" %></td><%
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105 end
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106 %>
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107 </tr>
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108 <% end %>
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109 </table>
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110 </div>
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111 <% Html.simply_html_body_bottom() %>
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112 </body>
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113 </html>
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114 <% end
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115
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117 local function index_of(tbl,val)
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118 for i, v in ipairs(tbl) do
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119 if v == val then
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120 return i
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121 end
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122 end
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123 local n = #tbl + 1
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124 tbl[n] = val
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125 return n
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126 end
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128
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129 function M.of(index)
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130 index or error "index is nil"
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131
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132 return function()
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133 Io.stdout = Http.response.text_writer()
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134 local query = Http.request.parameter.query
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135 if query == nil then
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136 form()
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137 return
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138 end
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139 local rows = string_to_number(Http.request.parameter.rows)
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140 local sort = Http.request.parameter.sort
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141 local results = index.search(query,1,rows,sort)
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142 local headers = {}
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143 local table = {}
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144 for _, doc in ipairs(results) do
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145 local row = {}
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146 for field, value in pairs(doc) do
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147 row[index_of(headers,field)] = value
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148 end
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149 table[#table+1] = row
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150 end
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151 result(query,sort,headers,table)
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152 end
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153
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154 end
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155
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156 return M