[2491] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * phindaction.cpp --
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| 4 | *
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| 5 | * Copyright 2001 Gordon W. Paynter
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| 6 | * Copyright 2001 The New Zealand Digital Library Project
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| 7 | *
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| 8 | * A component of the Greenstone digital library software
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| 9 | * from the New Zealand Digital Library Project at the
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| 10 | * University of Waikato, New Zealand.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or modify
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| 13 | * it under the terms of the GNU General Public License as published by
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| 14 | * the Free Software Foundation; either version 2 of the License, or
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| 15 | * (at your option) any later version.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful,
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| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 20 | * GNU General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, write to the Free Software
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| 24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 25 | *
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| 26 | *********************************************************************/
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| 27 |
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[2542] | 28 | // Note that this action uses mgpp to retrieve phind info, calling MGQuery
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| 29 | // etc. directly, not through the protocol. This breaks our receptionist -
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| 30 | // collection server separation and should be fixed some day I guess.
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| 31 |
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[2491] | 32 | #include "phindaction.h"
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| 33 | #include "fileutil.h"
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| 34 |
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| 35 | phindaction::phindaction () {
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| 36 |
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| 37 | cgiarginfo arg_ainfo;
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| 38 |
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| 39 | arg_ainfo.shortname = "pc";
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| 40 | arg_ainfo.longname = "phind classifier";
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| 41 | arg_ainfo.multiplechar = true;
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| 42 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 43 | arg_ainfo.argdefault = "";
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| 44 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 45 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 46 |
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| 47 | arg_ainfo.shortname = "pxml";
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| 48 | arg_ainfo.longname = "phind XML mode";
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| 49 | arg_ainfo.multiplechar = false;
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| 50 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 51 | arg_ainfo.argdefault = "0";
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| 52 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 53 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 54 |
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| 55 | arg_ainfo.shortname = "ppnum";
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| 56 | arg_ainfo.longname = "phind phrase number";
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| 57 | arg_ainfo.multiplechar = true;
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| 58 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 59 | arg_ainfo.argdefault = "0";
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| 60 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 61 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 62 |
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| 63 | arg_ainfo.shortname = "pptext";
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| 64 | arg_ainfo.longname = "phind phrase text";
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| 65 | arg_ainfo.multiplechar = true;
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| 66 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 67 | arg_ainfo.argdefault = "";
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| 68 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 69 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 70 |
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| 71 | arg_ainfo.shortname = "pfe";
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| 72 | arg_ainfo.longname = "phind first_e";
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| 73 | arg_ainfo.multiplechar = true;
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| 74 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 75 | arg_ainfo.argdefault = "0";
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| 76 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 77 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 78 |
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| 79 | arg_ainfo.shortname = "ple";
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| 80 | arg_ainfo.longname = "phind last_e";
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| 81 | arg_ainfo.multiplechar = true;
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| 82 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 83 | arg_ainfo.argdefault = "10";
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| 84 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 85 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 86 |
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| 87 | arg_ainfo.shortname = "pfl";
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| 88 | arg_ainfo.longname = "phind first_l";
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| 89 | arg_ainfo.multiplechar = true;
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| 90 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 91 | arg_ainfo.argdefault = "0";
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| 92 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 93 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 94 |
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| 95 | arg_ainfo.shortname = "pll";
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| 96 | arg_ainfo.longname = "phind last_l";
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| 97 | arg_ainfo.multiplechar = true;
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| 98 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 99 | arg_ainfo.argdefault = "10";
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| 100 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 101 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 102 |
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| 103 | arg_ainfo.shortname = "pfd";
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| 104 | arg_ainfo.longname = "phind first_d";
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| 105 | arg_ainfo.multiplechar = true;
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| 106 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 107 | arg_ainfo.argdefault = "0";
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| 108 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 109 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 110 |
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| 111 | arg_ainfo.shortname = "pld";
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| 112 | arg_ainfo.longname = "phind last_d";
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| 113 | arg_ainfo.multiplechar = true;
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| 114 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 115 | arg_ainfo.argdefault = "10";
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| 116 | arg_ainfo.savedarginfo = cgiarginfo::mustnot;
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| 117 | argsinfo.addarginfo (NULL, arg_ainfo);
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| 118 | }
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| 119 |
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| 120 | phindaction::~phindaction () {
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| 121 | }
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| 122 |
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| 123 | void phindaction::get_cgihead_info (cgiargsclass &/*args*/, recptprotolistclass * /*protos*/,
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| 124 | response_t &response,text_t &response_data,
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| 125 | ostream &/*logout*/) {
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| 126 | response = content;
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| 127 | response_data = "text/html";
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| 128 | }
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| 129 |
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| 130 | bool phindaction::do_action (cgiargsclass &args, recptprotolistclass *protos,
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| 131 | browsermapclass * /*browsers*/, displayclass &disp,
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| 132 | outconvertclass &outconvert, ostream &textout,
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| 133 | ostream &logout) {
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| 134 |
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| 135 | unsigned long count_l, count_e, count_d;
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| 136 | unsigned long phrase = args["ppnum"].getulong();
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| 137 | text_t &word = args["pptext"];
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| 138 | unsigned long first_e = args["pfe"].getulong();
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| 139 | unsigned long last_e = args["ple"].getulong();
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| 140 | unsigned long first_l = args["pfl"].getulong();
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| 141 | unsigned long last_l = args["pll"].getulong();
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| 142 | unsigned long first_d = args["pfd"].getulong();
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| 143 | unsigned long last_d = args["pld"].getulong();
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| 144 | bool XMLmode = false;
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| 145 | if (args["pxml"] == "1") XMLmode = true;
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| 146 |
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[2502] | 147 | // must have a valid collection server
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| 148 | recptproto *collectproto = protos->getrecptproto (args["c"], logout);
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| 149 | if (collectproto == NULL) {
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| 150 | output_error("phindaction: ERROR: collection not set", textout,
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| 151 | outconvert, disp, logout, XMLmode);
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| 152 | return true;
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| 153 | }
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[2491] | 154 |
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| 155 | // the frequency and occurances of the phrase
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| 156 | unsigned long tf;
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| 157 | vector <unsigned long> el, linkdest, docNums, docfreq;
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| 158 | vector <UCArray> linktype;
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| 159 |
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| 160 | // the number of occurances to display
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| 161 | unsigned long ef, lf, df;
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| 162 |
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| 163 | text_t basepath = filename_cat(gsdlhome, "collect", args["c"],
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| 164 | "index", "phind" + args["pc"]);
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| 165 |
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| 166 | // If we don't know the phrase number, look it up
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| 167 | if (phrase == 0) {
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| 168 |
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| 169 | if (word.empty()) {
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[2502] | 170 | output_error("phindaction: ERROR: no phrase number or word", textout,
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| 171 | outconvert, disp, logout, XMLmode);
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[2491] | 172 | return true;
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| 173 | }
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| 174 |
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| 175 | DocNumArray result;
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| 176 | find_phrase_number_from_word(basepath, word, result);
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| 177 |
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| 178 | if (result.empty()) {
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[2502] | 179 | output_error("phindaction: The search term does not occur in the collection",
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| 180 | textout, outconvert, disp, logout, XMLmode);
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[2491] | 181 | return true;
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| 182 | } else {
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| 183 | phrase = result[0];
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| 184 | }
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| 185 | }
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| 186 |
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| 187 | // Create a TextData object to read the phrase data (pdata)
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| 188 | TextData textdata;
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| 189 |
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| 190 | text_t fullpath = filename_cat(basepath, "pdata");
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| 191 | char *fullpathc = fullpath.getcstr();
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| 192 | #if defined __WIN32__
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| 193 | char *base = "";
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| 194 | #else
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| 195 | char *base = "/";
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| 196 | #endif
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| 197 |
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| 198 | if (!textdata.LoadData (base, fullpathc)) {
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| 199 | // FatalError (1, "Couldn't load text information for \"%s\"", fullpathc);
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| 200 | exit (0);
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| 201 | }
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| 202 |
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| 203 | delete fullpathc;
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| 204 |
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| 205 | get_phrase_all_data(textdata, phrase, word, tf, ef, lf, df, el,
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| 206 | linkdest, linktype, docNums, docfreq);
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| 207 |
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| 208 | // Output the header
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| 209 | if (XMLmode) {
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| 210 | textout << "Content-type: text/plain\n\n"
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| 211 | << "<phinddata id=\"" << phrase
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| 212 | << "\" text=\"" << word
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| 213 | << "\" tf=\"" << tf
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| 214 | << "\" ef=\"" << ef
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| 215 | << "\" df=\"" << df
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| 216 | << "\" lf=\"" << lf
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| 217 | << "\">\n";
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| 218 | } else {
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| 219 | textout << "Content-type: text/html\n\n"
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| 220 | << "<html><head><title>" << word << "</title></head>\n"
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| 221 | << "<body><center>\n"
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| 222 | << "<p><h1>" << word << "</h1>\n"
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| 223 | << "<p><b>"<< word << "</b> occurs "
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| 224 | << tf << " times in " << df << " documents\n";
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| 225 | }
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| 226 |
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| 227 | // Output the thesaurus links
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| 228 | if ((lf > 0) && (first_l < last_l)) {
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| 229 |
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| 230 | // figure out the number of phrases to output
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| 231 | if (last_l > lf) {
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| 232 | last_l = lf;
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| 233 | }
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| 234 | count_l = last_l - first_l;
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| 235 |
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| 236 | if (XMLmode) {
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| 237 | textout << "<thesauruslist length=\"" << lf
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| 238 | << "\" start=\"" << first_l
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| 239 | << "\" end=\"" << last_l << "\">\n";
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| 240 | print_thesaurus_links(args["c"], XMLmode, textdata, linkdest, linktype,
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| 241 | first_l, last_l, disp, outconvert, textout);
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| 242 | textout << "</thesauruslist>\n";
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| 243 | }
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| 244 |
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| 245 | // output links as HTML
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| 246 | else {
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| 247 | if (count_l == lf) {
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| 248 | textout << "<p><b> " << count_l << " thesaurus links</b>\n";
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| 249 | } else {
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| 250 | textout << "<p><b>" << count_l << " of " << lf << " thesaurus links</b>\n";
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| 251 | }
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| 252 |
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| 253 | textout << "<p><table border=1><tr><th>type</th><th>topic</th><th>freq</th><th>docs</th></tr>\n";
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| 254 | print_thesaurus_links(args["c"], XMLmode, textdata, linkdest, linktype,
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| 255 | first_l, last_l, disp, outconvert, textout);
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| 256 | textout << "</table>\n";
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| 257 |
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| 258 | if (last_l < lf) {
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| 259 | if ((last_l + 10) < lf) {
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| 260 | textout << outconvert << disp
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| 261 | << "<br><a href=\"_gwcgi_?"
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| 262 | << "c=" << args["c"]
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| 263 | << "&ppnum=" << phrase
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| 264 | << "&pfe=" << first_e
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| 265 | << "&ple=" << last_e
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| 266 | << "&pfd=" << first_d
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| 267 | << "&pld=" << last_d
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| 268 | << "&pfl=" << first_l
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| 269 | << "&pll=" << (last_l + 10)
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| 270 | << "\">Get more thesaurus links</a>\n";
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| 271 | }
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| 272 | textout << outconvert << disp
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| 273 | << "<br><a href=\"_gwcgi_?"
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| 274 | << "c=" << args["c"]
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| 275 | << "&ppnum=" << phrase
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| 276 | << "&pfe=" << first_e
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| 277 | << "&ple=" << last_e
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| 278 | << "&pfd=" << first_d
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| 279 | << "&pld=" << last_d
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| 280 | << "&pfl=" << first_l
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| 281 | << "&pll=" << lf
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| 282 | << "\">Get every thesaurus link</a>\n" ;
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| 283 | }
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| 284 | }
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| 285 | }
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| 286 |
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| 287 | // Output the expansions
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| 288 | if ((ef > 0) && (first_e < last_e)) {
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| 289 |
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| 290 | // figure out the number of phrases to output
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| 291 | if (last_e > el.size()) {
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| 292 | last_e = el.size();
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| 293 | }
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| 294 | count_e = last_e - first_e;
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| 295 |
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| 296 | // output expansions as XML
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| 297 | if (XMLmode) {
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| 298 | textout << "<expansionlist length=\"" << ef
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| 299 | << "\" start=\"" << first_e
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| 300 | << "\" end=\"" << last_e << "\">" << endl;
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| 301 |
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| 302 | print_expansions(args["c"], XMLmode, word, textdata, el, first_e,
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| 303 | last_e, disp, outconvert, textout);
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| 304 |
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| 305 | textout << "</expansionlist>\n";
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| 306 | }
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| 307 |
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| 308 | // output expansions as HTML
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| 309 | else {
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| 310 | if (count_e == el.size()) {
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| 311 | textout << "<p><b> " << count_e << " expansions</b>\n";
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| 312 | } else {
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| 313 | textout << "<p><b>" << count_e << " of " << ef << " expansions</b>\n";
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| 314 | }
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| 315 |
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| 316 | textout << "<p><table border=1><tr><th colspan=3>phrase</th><th>freq</th><th>docs</th></tr>\n";
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| 317 | print_expansions(args["c"], XMLmode, word, textdata, el, first_e,
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| 318 | last_e, disp, outconvert, textout);
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| 319 | textout << "</table>\n";
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| 320 |
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| 321 | if (last_e < ef) {
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| 322 | if ((last_e + 10) < ef) {
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| 323 | textout << outconvert << disp
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| 324 | << "<br><a href=\"_gwcgi_?"
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| 325 | << "c=" << args["c"]
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| 326 | << "&ppnum=" << phrase
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| 327 | << "&pfe=" << first_e
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| 328 | << "&ple=" << (last_e + 10)
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| 329 | << "&pfd=" << first_d
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| 330 | << "&pld=" << last_d
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| 331 | << "&pfl=" << first_l
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| 332 | << "&pll=" << last_l
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| 333 | << "\">Get more expansions</a>\n";
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| 334 | }
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| 335 | textout << outconvert << disp
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| 336 | << "<br><a href=\"_gwcgi_?"
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| 337 | << "c=" << args["c"]
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| 338 | << "&ppnum=" << phrase
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| 339 | << "&pfe=" << first_e
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| 340 | << "&ple=" << ef
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| 341 | << "&pfd=" << first_d
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| 342 | << "&pld=" << last_d
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| 343 | << "&pfl=" << first_l
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| 344 | << "&pll=" << last_l
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| 345 | << "\">Get every expansion</a>\n";
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| 346 | }
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| 347 | }
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| 348 | }
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| 349 |
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| 350 | // Output the document occurances
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| 351 | if ((df > 0) && (first_d < last_d)) {
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| 352 |
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| 353 | // figure out the phrases to output
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| 354 | if (last_d > docNums.size()) {
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| 355 | last_d = docNums.size();
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| 356 | }
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| 357 | count_d = last_d - first_d;
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| 358 |
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| 359 | // output document list as XML
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| 360 | if (XMLmode) {
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| 361 | textout << "<documentlist length=\"" << df
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| 362 | << "\" start=\"" << first_d
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| 363 | << "\" end=\"" << last_d << "\">\n";
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| 364 |
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| 365 | print_documents(XMLmode, basepath, args["c"], docNums, docfreq,
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| 366 | first_d, last_d, disp, outconvert, textout);
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| 367 |
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| 368 | textout << "</documentlist>\n";
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| 369 | }
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| 370 |
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| 371 | // output document list as HTML
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| 372 | else {
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| 373 |
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| 374 | if (count_d == docNums.size()) {
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| 375 | textout << "<p><b> " << count_d << " documents</b>\n";
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| 376 | } else {
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| 377 | textout << "<p><b>" << count_d << " of " << df << " documents</b>\n";
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| 378 | }
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| 379 |
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| 380 | textout << "<p><table border=1><tr><th align=left>document</th><th>freq</th></tr>\n";
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| 381 | print_documents(XMLmode, basepath, args["c"], docNums, docfreq,
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| 382 | first_d, last_d, disp, outconvert, textout);
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| 383 | textout << "</table>\n";
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| 384 |
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| 385 | if (last_d < df) {
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| 386 | if ((last_d + 10) < df) {
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| 387 | textout << outconvert << disp
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| 388 | << "<br><a href=\"_gwcgi_?"
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| 389 | << "c=" << args["c"]
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| 390 | << "&ppnum=" << phrase
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| 391 | << "&pfe=" << first_e
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| 392 | << "&ple=" << last_e
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| 393 | << "&pfd=" << first_d
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| 394 | << "&pld=" << (last_d + 10)
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| 395 | << "&pfl=" << first_l
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| 396 | << "&pll=" << last_l
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| 397 | << "\">Get more documents</a>\n";
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| 398 | }
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| 399 | textout << outconvert << disp
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| 400 | << "<br><a href=\"_gwcgi_?"
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| 401 | << "c=" << args["c"]
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| 402 | << "&ppnum=" << phrase
|
---|
| 403 | << "&pfe=" << first_e
|
---|
| 404 | << "&ple=" << last_e
|
---|
| 405 | << "&pfd=" << first_d
|
---|
| 406 | << "&pld=" << df
|
---|
| 407 | << "&pfl=" << first_l
|
---|
| 408 | << "&pll=" << last_l
|
---|
| 409 | << "\">Get every document</a>\n";
|
---|
| 410 | }
|
---|
| 411 | }
|
---|
| 412 | }
|
---|
| 413 |
|
---|
| 414 | // Close the document
|
---|
| 415 | if (XMLmode) {
|
---|
| 416 | textout << "</phinddata>\n";
|
---|
| 417 | } else {
|
---|
| 418 | textout << "</center></body></html>\n";
|
---|
| 419 | }
|
---|
| 420 |
|
---|
| 421 | textdata.UnloadData ();
|
---|
| 422 |
|
---|
| 423 | return true;
|
---|
| 424 | }
|
---|
| 425 |
|
---|
| 426 | // Find the phrase number of a word in the index file
|
---|
| 427 | void phindaction::find_phrase_number_from_word(const text_t &basepath,
|
---|
| 428 | const text_t &query,
|
---|
| 429 | DocNumArray &result) {
|
---|
| 430 |
|
---|
| 431 | // Open the index file for searching
|
---|
| 432 | IndexData indexData;
|
---|
| 433 |
|
---|
| 434 | text_t fullpath = filename_cat(basepath, "pword");
|
---|
| 435 | char *fullpathc = fullpath.getcstr();
|
---|
| 436 | #if defined __WIN32__
|
---|
| 437 | char *base = "";
|
---|
| 438 | #else
|
---|
| 439 | char *base = "/";
|
---|
| 440 | #endif
|
---|
| 441 |
|
---|
| 442 | if (!indexData.LoadData (base, fullpathc)) {
|
---|
| 443 | // FatalError (1, "Couldn't load index information for \"%s\"", fullpathc);
|
---|
| 444 | exit (0);
|
---|
| 445 | }
|
---|
| 446 |
|
---|
| 447 | delete fullpathc;
|
---|
| 448 |
|
---|
| 449 | // set up the query object
|
---|
| 450 | QueryInfo queryInfo;
|
---|
| 451 | SetCStr (queryInfo.docLevel, "Document");
|
---|
| 452 | queryInfo.maxDocs = 5;
|
---|
| 453 | queryInfo.sortByRank = true;
|
---|
| 454 | queryInfo.exactWeights = false;
|
---|
| 455 | queryInfo.needRankInfo = true;
|
---|
| 456 | queryInfo.needTermFreqs = true;
|
---|
| 457 |
|
---|
| 458 | // mode 1 = casefolded, unstemmed search
|
---|
| 459 | UCArray ucquery;
|
---|
| 460 | toUCArray(query, ucquery);
|
---|
| 461 | QueryNode *queryTree = ParseQuery(ucquery, 1, 1);
|
---|
| 462 |
|
---|
| 463 | // perform the query
|
---|
| 464 | ExtQueryResult queryResult;
|
---|
| 465 | MGQuery (indexData, queryInfo, queryTree, queryResult);
|
---|
| 466 | // cout << "-- word lookup result -- " << endl << queryResult << endl ;
|
---|
| 467 |
|
---|
| 468 | result.clear();
|
---|
| 469 | result = queryResult.docs;
|
---|
| 470 |
|
---|
| 471 | // delete the query
|
---|
| 472 | if (queryTree != NULL) delete queryTree;
|
---|
[2542] | 473 |
|
---|
| 474 | indexData.UnloadData();
|
---|
[2491] | 475 | }
|
---|
| 476 |
|
---|
| 477 | // Get all the data about a phrase
|
---|
| 478 | //
|
---|
| 479 | // The phrase is stored in textData as record phrase.
|
---|
| 480 | // We retrieve:
|
---|
| 481 | // word - the text of the phrase
|
---|
| 482 | // tf - the total frequency of the phrase
|
---|
| 483 | // ef - the expansion frequency of the phrase
|
---|
| 484 | // lf - the thesaurus link frequency of the phrase
|
---|
| 485 | // df - the document frequency of the phrase
|
---|
| 486 | // el - the list of phrases that are expansions of phrase
|
---|
| 487 | // ll - the list of phrases that are thesaurus links
|
---|
| 488 | // dl - the list of documents that contain phrase
|
---|
| 489 | void phindaction::get_phrase_all_data(TextData &textdata, unsigned long phrase,
|
---|
| 490 | text_t &word, unsigned long &tf, unsigned long &ef,
|
---|
| 491 | unsigned long &lf, unsigned long &df,
|
---|
| 492 | vector <unsigned long> &el,
|
---|
| 493 | vector <unsigned long> &linkdest,
|
---|
| 494 | vector <UCArray> &linktype,
|
---|
| 495 | vector <unsigned long> &docnum,
|
---|
| 496 | vector <unsigned long> &docfrq) {
|
---|
| 497 | UCArray text;
|
---|
| 498 | UCArray docLevel;
|
---|
| 499 | SetCStr(docLevel, "Document");
|
---|
| 500 |
|
---|
| 501 | // Look the word up in the textData
|
---|
| 502 | if (!GetDocText (textdata, docLevel, phrase, text)) {
|
---|
| 503 | // FatalError (1, "Error while trying to get phrase %u", phrase);
|
---|
| 504 | exit (0);
|
---|
| 505 | }
|
---|
| 506 |
|
---|
| 507 | // Ignore everything up to the first colon
|
---|
| 508 | UCArray::iterator next = text.begin();
|
---|
| 509 | while (*next++ != ':');
|
---|
| 510 |
|
---|
| 511 | // ignore training carriage returns
|
---|
| 512 | while (text.back() == '\n') {
|
---|
| 513 | text.pop_back();
|
---|
| 514 | }
|
---|
| 515 |
|
---|
| 516 | // Get the word
|
---|
| 517 | word.clear();
|
---|
| 518 | for (; *next != ':'; next++) {
|
---|
| 519 | word.push_back(*next);
|
---|
| 520 | }
|
---|
| 521 |
|
---|
| 522 | // Get total frequency
|
---|
| 523 | tf = 0;
|
---|
| 524 | for (next++; *next != ':'; next++) {
|
---|
| 525 | tf *= 10;
|
---|
| 526 | tf += (*next - '0');
|
---|
| 527 | }
|
---|
| 528 |
|
---|
| 529 | // Get expansion frequency
|
---|
| 530 | ef = 0;
|
---|
| 531 | for (next++; *next != ':'; next++) {
|
---|
| 532 | ef *= 10;
|
---|
| 533 | ef += (*next - '0');
|
---|
| 534 | }
|
---|
| 535 |
|
---|
| 536 | // Get document frequency
|
---|
| 537 | df = 0;
|
---|
| 538 | for (next++; *next != ':'; next++) {
|
---|
| 539 | df *= 10;
|
---|
| 540 | df += (*next - '0');
|
---|
| 541 | }
|
---|
| 542 |
|
---|
| 543 | // Get expansion list
|
---|
| 544 | el.clear();
|
---|
| 545 | unsigned long e = 0;
|
---|
| 546 | for (next++; *next != ':'; next++) {
|
---|
| 547 | if (*next == ',') {
|
---|
| 548 | el.push_back(e);
|
---|
| 549 | e = 0;
|
---|
| 550 | } else {
|
---|
| 551 | e *= 10;
|
---|
| 552 | e += (*next - '0');
|
---|
| 553 | }
|
---|
| 554 | }
|
---|
| 555 |
|
---|
| 556 | // Get document list & the document frequency list
|
---|
| 557 | docnum.clear();
|
---|
| 558 | docfrq.clear();
|
---|
| 559 | bool readnum = false;
|
---|
| 560 | unsigned long d = 0;
|
---|
| 561 | for (next++; *next != ':'; next++) {
|
---|
| 562 | if (*next == ',') {
|
---|
| 563 | docnum.push_back(d);
|
---|
| 564 | readnum = true;
|
---|
| 565 | d = 0;
|
---|
| 566 | } else if (*next == ';') {
|
---|
| 567 | if (readnum) {
|
---|
| 568 | docfrq.push_back(d);
|
---|
| 569 | } else {
|
---|
| 570 | docnum.push_back(d);
|
---|
| 571 | docfrq.push_back(1);
|
---|
| 572 | }
|
---|
| 573 | readnum = false;
|
---|
| 574 | d = 0;
|
---|
| 575 | } else {
|
---|
| 576 | d *= 10;
|
---|
| 577 | d += (*next - '0');
|
---|
| 578 | }
|
---|
| 579 | }
|
---|
| 580 |
|
---|
| 581 | // Get thesaurus link frequency & link list
|
---|
| 582 | text.push_back(':');
|
---|
| 583 | text.push_back(':');
|
---|
| 584 |
|
---|
| 585 | // link frequency
|
---|
| 586 | lf = 0;
|
---|
| 587 | for (next++; *next != ':'; next++) {
|
---|
| 588 | lf *= 10;
|
---|
| 589 | lf += (*next - '0');
|
---|
| 590 | }
|
---|
| 591 |
|
---|
| 592 | // two lists of link data
|
---|
| 593 | linkdest.clear();
|
---|
| 594 | linktype.clear();
|
---|
| 595 |
|
---|
| 596 | UCArray thistype;
|
---|
| 597 | thistype.clear();
|
---|
| 598 | bool typedone = false;
|
---|
| 599 | unsigned long l = 0;
|
---|
| 600 | for (next++; *next != ':'; next++) {
|
---|
| 601 |
|
---|
| 602 | if (!typedone) {
|
---|
| 603 | // first read the link type, a charactor string
|
---|
| 604 | if (*next == ',') {
|
---|
| 605 | typedone = true;
|
---|
| 606 | } else {
|
---|
| 607 | thistype.push_back(*next);
|
---|
| 608 | }
|
---|
| 609 | } else {
|
---|
| 610 | // having read the link type, read the list of link destinations
|
---|
| 611 | if (*next == ',') {
|
---|
| 612 | linkdest.push_back(l);
|
---|
| 613 | linktype.push_back(thistype);
|
---|
| 614 | l = 0;
|
---|
| 615 | } else if (*next == ';') {
|
---|
| 616 | linkdest.push_back(l);
|
---|
| 617 | linktype.push_back(thistype);
|
---|
| 618 | l = 0;
|
---|
| 619 | thistype.clear();
|
---|
| 620 | typedone = false;
|
---|
| 621 | } else {
|
---|
| 622 | l *= 10;
|
---|
| 623 | l += (*next - '0');
|
---|
| 624 | }
|
---|
| 625 | }
|
---|
| 626 | }
|
---|
| 627 | }
|
---|
| 628 |
|
---|
| 629 | void phindaction::print_thesaurus_links(const text_t &collection, bool XMLmode,
|
---|
| 630 | TextData &textdata, vector <unsigned long> &linkdest,
|
---|
| 631 | vector <UCArray> &linktype, unsigned long first,
|
---|
| 632 | unsigned long last, displayclass &disp,
|
---|
| 633 | outconvertclass &outconvert, ostream &textout) {
|
---|
| 634 |
|
---|
| 635 | // information describing each link in the list
|
---|
| 636 | unsigned long phrase, tf, ef, df;
|
---|
| 637 | UCArray type, text;
|
---|
| 638 |
|
---|
| 639 | for (unsigned long l = first; l < last; l++) {
|
---|
| 640 |
|
---|
| 641 | // get the phrase data
|
---|
| 642 | phrase = linkdest[l];
|
---|
| 643 | type = linktype[l];
|
---|
| 644 | get_phrase_freq_data(textdata, phrase, text, tf, ef, df);
|
---|
| 645 |
|
---|
| 646 | if (XMLmode) {
|
---|
| 647 | textout << "<thesaurus num=\"" << l
|
---|
| 648 | << "\" id=\"" << phrase
|
---|
| 649 | << "\" tf=\"" << tf
|
---|
| 650 | << "\" df=\"" << df
|
---|
| 651 | << "\" type=\"" << type
|
---|
| 652 | << "\" text=\"" << text
|
---|
| 653 | << "\"/>\n";
|
---|
| 654 | } else {
|
---|
| 655 | textout << "<tr valign=top><td>" << type << "</td><td>";
|
---|
| 656 | textout << outconvert << disp
|
---|
| 657 | << "<a href=\"_gwcgi_?c=" << collection;
|
---|
| 658 | textout << "&ppnum=" << phrase << "\">" << text << "</a>"
|
---|
| 659 | << "</td><td>" << tf << "</td><td>" << df << "</td></tr>\n";
|
---|
| 660 | }
|
---|
| 661 | }
|
---|
| 662 | }
|
---|
| 663 |
|
---|
| 664 | // Get the frequency data about a phrase
|
---|
| 665 | //
|
---|
| 666 | // The phrase is stored in textData as record phrase.
|
---|
| 667 | // We retrieve:
|
---|
| 668 | // word - the text of the phrase
|
---|
| 669 | // tf - the total frequency of the phrase
|
---|
| 670 | // ef - the expansion frequency of the phrase
|
---|
| 671 | // df - the document frequency of the phrase
|
---|
| 672 | void phindaction::get_phrase_freq_data(TextData &textdata, unsigned long phrase,
|
---|
| 673 | UCArray &word, unsigned long &tf,
|
---|
| 674 | unsigned long &ef, unsigned long &df) {
|
---|
| 675 |
|
---|
| 676 | UCArray text;
|
---|
| 677 | UCArray docLevel;
|
---|
| 678 | SetCStr(docLevel, "Document");
|
---|
| 679 |
|
---|
| 680 | // Look the word up in the textData
|
---|
| 681 | if (!GetDocText (textdata, docLevel, phrase, text)) {
|
---|
| 682 | // FatalError (1, "Error while trying to get phrase %u", phrase);
|
---|
| 683 | exit (0);
|
---|
| 684 | }
|
---|
| 685 |
|
---|
| 686 | // Ignore everything up to the first colon
|
---|
| 687 | UCArray::iterator next = text.begin();
|
---|
| 688 | while (*next++ != ':');
|
---|
| 689 |
|
---|
| 690 | // Get the word
|
---|
| 691 | word.clear();
|
---|
| 692 | for (; *next != ':'; next++) {
|
---|
| 693 | word.push_back(*next);
|
---|
| 694 | }
|
---|
| 695 |
|
---|
| 696 | // Get total frequency
|
---|
| 697 | tf = 0;
|
---|
| 698 | for (next++; *next != ':'; next++) {
|
---|
| 699 | tf *= 10;
|
---|
| 700 | tf += (*next - '0');
|
---|
| 701 | }
|
---|
| 702 |
|
---|
| 703 | // Get expansion frequency
|
---|
| 704 | ef = 0;
|
---|
| 705 | for (next++; *next != ':'; next++) {
|
---|
| 706 | ef *= 10;
|
---|
| 707 | ef += (*next - '0');
|
---|
| 708 | }
|
---|
| 709 |
|
---|
| 710 | // Get document frequency
|
---|
| 711 | df = 0;
|
---|
| 712 | for (next++; *next != ':'; next++) {
|
---|
| 713 | df *= 10;
|
---|
| 714 | df += (*next - '0');
|
---|
| 715 | }
|
---|
| 716 | }
|
---|
| 717 |
|
---|
| 718 | // Print a list of expansions
|
---|
| 719 | //
|
---|
| 720 | // Given the textData and a list of phrase numbers, print out each of the
|
---|
| 721 | // expansions.
|
---|
| 722 | void phindaction::print_expansions(const text_t &collection, bool XMLmode,
|
---|
| 723 | const text_t &body, TextData &textdata,
|
---|
| 724 | const vector <unsigned long> &elist,
|
---|
| 725 | unsigned long first, unsigned long last,
|
---|
| 726 | displayclass &disp, outconvertclass &outconvert,
|
---|
| 727 | ostream &textout) {
|
---|
| 728 |
|
---|
| 729 | UCArray word;
|
---|
| 730 | unsigned long phrase, tf, df, ef;
|
---|
| 731 |
|
---|
| 732 | UCArray suffix, prefix, ucbody;
|
---|
| 733 |
|
---|
| 734 | toUCArray(body, ucbody);
|
---|
| 735 |
|
---|
| 736 | for (unsigned long e = first; e < last; e++) {
|
---|
| 737 |
|
---|
| 738 | phrase = elist[e];
|
---|
| 739 | get_phrase_freq_data(textdata, phrase, word, tf, ef, df);
|
---|
| 740 |
|
---|
| 741 | split_phrase(word, ucbody, prefix, suffix);
|
---|
| 742 |
|
---|
| 743 | if (XMLmode) {
|
---|
| 744 | // body is always the same as the text of the phrase, so no need to send it
|
---|
| 745 | textout << "<expansion num=\"" << e
|
---|
| 746 | << "\" id=\"" << phrase
|
---|
| 747 | << "\" tf=\"" << tf
|
---|
| 748 | << "\" df=\"" << df;
|
---|
| 749 | if (!prefix.empty()) {
|
---|
| 750 | textout << "\" prefix=\"" << prefix;
|
---|
| 751 | }
|
---|
| 752 | if (!suffix.empty()) {
|
---|
| 753 | textout << "\" suffix=\"" << suffix;
|
---|
| 754 | }
|
---|
| 755 | textout << "\"/>\n";
|
---|
| 756 | } else {
|
---|
| 757 | textout << outconvert << disp
|
---|
| 758 | << "<tr valign=top><td align=right><a href=\"_gwcgi_?"
|
---|
| 759 | << "c=" << collection << "&ppnum=" << phrase << "\">";
|
---|
| 760 | textout << prefix << "</a></td>";
|
---|
| 761 | textout <<outconvert << disp
|
---|
| 762 | << "<td align=center><a href=\"_gwcgi_?"
|
---|
| 763 | << "c=" << collection << "&ppnum=" << phrase << "\">"
|
---|
| 764 | << body << "</a></td>"
|
---|
| 765 | << "<td align=left><a href=\"_gwcgi_?"
|
---|
| 766 | << "c=" << collection << "&ppnum=" << phrase << "\">";
|
---|
| 767 | textout << suffix << "</a></td>"
|
---|
| 768 | << "<td>" << tf << "</td><td>" << df << "</td></tr>\n";
|
---|
| 769 | }
|
---|
| 770 | }
|
---|
| 771 | }
|
---|
| 772 |
|
---|
| 773 | // split an expansion into prefix and suffix
|
---|
| 774 | void phindaction::split_phrase(const UCArray &word, const UCArray &body,
|
---|
| 775 | UCArray &prefix, UCArray &suffix) {
|
---|
| 776 |
|
---|
| 777 | prefix.clear();
|
---|
| 778 | suffix.clear();
|
---|
| 779 |
|
---|
| 780 | bool readingPrefix = true;
|
---|
| 781 | UCArray::const_iterator here = word.begin();
|
---|
| 782 | UCArray::const_iterator end = word.end();
|
---|
| 783 |
|
---|
| 784 | while (here != end) {
|
---|
| 785 |
|
---|
| 786 | // if we've not read all the prefix, add the next char to the prefix
|
---|
| 787 | if (readingPrefix) {
|
---|
| 788 | if (phrase_match(body, here, end)) {
|
---|
| 789 | readingPrefix = false;
|
---|
| 790 | // trim whitespace from end of prefix & start of suffix
|
---|
| 791 | if (!prefix.empty()) {
|
---|
| 792 | prefix.pop_back();
|
---|
| 793 | }
|
---|
| 794 | if ((here != end) && (*here == ' ')) {
|
---|
| 795 | here++;
|
---|
| 796 | }
|
---|
| 797 | } else {
|
---|
| 798 | prefix.push_back(*here);
|
---|
| 799 | here++;
|
---|
| 800 | }
|
---|
| 801 | }
|
---|
| 802 | // if we've finished with the prefix, update the suffix
|
---|
| 803 | else {
|
---|
| 804 | suffix.push_back(*here);
|
---|
| 805 | here++;
|
---|
| 806 | }
|
---|
| 807 | }
|
---|
| 808 | }
|
---|
| 809 |
|
---|
| 810 | // phrase_match
|
---|
| 811 | //
|
---|
| 812 | // compare two strings, one represented as an UCArray, the other as two
|
---|
| 813 | // UCArray iterators.
|
---|
| 814 | //
|
---|
| 815 | // Return true if the UCArray is the same as the phrase the iterators point
|
---|
| 816 | // to for the length of the UCArray.
|
---|
| 817 | bool phindaction::phrase_match(const UCArray &text, UCArray::const_iterator &here,
|
---|
| 818 | UCArray::const_iterator end) {
|
---|
| 819 |
|
---|
| 820 | UCArray::const_iterator one_here = text.begin();
|
---|
| 821 | UCArray::const_iterator one_end = text.end();
|
---|
| 822 | UCArray::const_iterator two_here = here;
|
---|
| 823 |
|
---|
| 824 | // iterate over the length of the first string, comparing each element to
|
---|
| 825 | // the corresponding element in the second string.
|
---|
| 826 | while (one_here != one_end) {
|
---|
| 827 |
|
---|
| 828 | if (two_here == end) {
|
---|
| 829 | return false;
|
---|
| 830 | } else if (*one_here != *two_here) {
|
---|
| 831 | return false;
|
---|
| 832 | }
|
---|
| 833 | one_here++;
|
---|
| 834 | two_here++;
|
---|
| 835 | }
|
---|
| 836 |
|
---|
| 837 | here = two_here;
|
---|
| 838 | return true;
|
---|
| 839 | }
|
---|
| 840 |
|
---|
| 841 | void phindaction::print_documents(bool XMLmode, const text_t &basepath,
|
---|
| 842 | const text_t &collection,
|
---|
| 843 | const vector <unsigned long> &docNums,
|
---|
| 844 | const vector <unsigned long> &docFreq,
|
---|
| 845 | unsigned long first, unsigned long last,
|
---|
| 846 | displayclass &disp, outconvertclass &outconvert,
|
---|
| 847 | ostream &textout) {
|
---|
| 848 |
|
---|
| 849 | // Create a TextData object to read the document data
|
---|
| 850 | TextData docdata;
|
---|
| 851 |
|
---|
| 852 | text_t fullpath = filename_cat(basepath, "docs");
|
---|
| 853 | char *fullpathc = fullpath.getcstr();
|
---|
| 854 | #if defined __WIN32__
|
---|
| 855 | char *base = "";
|
---|
| 856 | #else
|
---|
| 857 | char *base = "/";
|
---|
| 858 | #endif
|
---|
| 859 |
|
---|
| 860 | if (!docdata.LoadData (base, fullpathc)) {
|
---|
| 861 | // FatalError (1, "Couldn't load text information for \"%s\"", fullpathc);
|
---|
| 862 | exit (0);
|
---|
| 863 | }
|
---|
| 864 |
|
---|
| 865 | delete fullpathc;
|
---|
| 866 |
|
---|
| 867 | UCArray title, hash;
|
---|
| 868 | unsigned long freq, doc;
|
---|
| 869 |
|
---|
| 870 | for (unsigned long d = first; d < last; d++) {
|
---|
| 871 | doc = docNums[d];
|
---|
| 872 | freq = docFreq[d];
|
---|
| 873 |
|
---|
| 874 | get_document_all_data(docdata, doc, title, hash);
|
---|
| 875 |
|
---|
| 876 | if (XMLmode) {
|
---|
| 877 | textout << "<document num=\"" << d
|
---|
| 878 | << "\" hash=\"" << hash
|
---|
| 879 | << "\" freq=\"" << freq
|
---|
| 880 | << "\" title=\"" << title << "\"/>\n";
|
---|
| 881 | } else {
|
---|
| 882 | textout << outconvert << disp
|
---|
| 883 | << "<tr valign=top><td><a href=\"_gwcgi_?"
|
---|
| 884 | << "c=" << collection;
|
---|
| 885 | textout << "&a=d&d=" << hash << "\">" << title << "</a>"
|
---|
| 886 | << "</td><td>" << freq << "</td></tr>\n";
|
---|
| 887 | }
|
---|
| 888 | }
|
---|
[2542] | 889 |
|
---|
| 890 | docdata.UnloadData();
|
---|
[2491] | 891 | }
|
---|
| 892 |
|
---|
| 893 | // Get all the data about a docment
|
---|
| 894 | //
|
---|
| 895 | // The document's details are stored in docData as record docNum.
|
---|
| 896 | // We retrieve:
|
---|
| 897 | // title - the document's title
|
---|
| 898 | // hash - the document's unique OID
|
---|
| 899 | void phindaction::get_document_all_data(TextData &docdata, unsigned long docNum,
|
---|
| 900 | UCArray &title, UCArray &hash) {
|
---|
| 901 |
|
---|
| 902 | UCArray text;
|
---|
| 903 | UCArray docLevel;
|
---|
| 904 | SetCStr(docLevel, "Document");
|
---|
| 905 |
|
---|
| 906 | // Look the word up in the textData
|
---|
| 907 | if (!GetDocText (docdata, docLevel, docNum, text)) {
|
---|
| 908 | // FatalError (1, "Error while trying to get document %u", docNum);
|
---|
| 909 | exit (0);
|
---|
| 910 | }
|
---|
| 911 |
|
---|
| 912 | // Ignore everything up to the first colon
|
---|
| 913 | UCArray::iterator next = text.begin();
|
---|
| 914 | while (*next++ != '\t');
|
---|
| 915 |
|
---|
| 916 | // Get the document OID (hash)
|
---|
| 917 | hash.clear();
|
---|
| 918 | for (; *next != '\t'; next++) {
|
---|
| 919 | hash.push_back(*next);
|
---|
| 920 | }
|
---|
| 921 |
|
---|
| 922 | // Get the title
|
---|
| 923 | text.push_back('\n');
|
---|
| 924 | title.clear();
|
---|
| 925 | for (next++; *next != '\n'; next++) {
|
---|
| 926 | title.push_back(*next);
|
---|
| 927 | }
|
---|
| 928 | }
|
---|
| 929 |
|
---|
| 930 | void phindaction::toUCArray(const text_t &in, UCArray &out) {
|
---|
| 931 | out.clear();
|
---|
| 932 | text_t::const_iterator here = in.begin();
|
---|
| 933 | text_t::const_iterator end = in.end();
|
---|
| 934 | while (here != end) {
|
---|
| 935 | out.push_back((unsigned char) *here);
|
---|
| 936 | here++;
|
---|
| 937 | }
|
---|
| 938 | }
|
---|
| 939 |
|
---|
[2502] | 940 | void phindaction::output_error (const text_t &message, ostream &textout,
|
---|
| 941 | outconvertclass &outconvert,
|
---|
| 942 | displayclass & disp, ostream &logout,
|
---|
| 943 | bool XMLmode) {
|
---|
| 944 |
|
---|
| 945 | logout << outconvert << message << "\n";
|
---|
| 946 | if (XMLmode) {
|
---|
| 947 | textout << outconvert
|
---|
| 948 | << "<phinddata>\n"
|
---|
| 949 | << "<phinderror>" << message << "</phinderror>\n"
|
---|
| 950 | << "</phinddata>\n";
|
---|
| 951 | } else {
|
---|
| 952 | textout << outconvert << disp
|
---|
| 953 | << "_header_\n"
|
---|
| 954 | << message
|
---|
| 955 | << "_footer_\n";
|
---|
| 956 | }
|
---|
| 957 | }
|
---|