[855] | 1 | /**************************************************************************
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| 2 | *
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| 3 | * Queryer.cpp -- simple interactive query program
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| 4 | * Copyright (C) 1999 Rodger McNab
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or modify
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| 7 | * it under the terms of the GNU General Public License as published by
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| 8 | * the Free Software Foundation; either version 2 of the License, or
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| 9 | * (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, write to the Free Software
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| 18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 19 | *
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| 20 | * $Id: Queryer.cpp 879 2000-01-31 03:01:25Z rjmcnab $
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| 21 | *
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| 22 | **************************************************************************/
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| 23 |
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| 24 | #include "MGQuery.h"
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| 25 | #include "TextGet.h"
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| 26 |
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| 27 | #include "messages.h"
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| 28 | #include "mg_files.h"
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| 29 |
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| 30 | #include "QueryParser.h"
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| 31 |
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| 32 |
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| 33 | int main (int argc, char **argv) {
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| 34 | int ch;
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| 35 | char *filename = "";
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| 36 | char *basePath = "";
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| 37 |
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| 38 | opterr = 0;
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| 39 | msg_prefix = argv[0];
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| 40 |
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| 41 | // process the command line arguments
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| 42 | while ((ch = getopt (argc, argv, "f:d:h")) != -1) {
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| 43 | switch (ch) {
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| 44 | case 'f': /* input file */
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| 45 | filename = optarg;
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| 46 | break;
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| 47 | case 'd':
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| 48 | basePath = optarg;
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| 49 | set_basepath (basePath);
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| 50 | break;
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| 51 | case 'h':
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| 52 | case '?':
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| 53 | fprintf (stderr, "usage: %s [-h] [-d directory] -f name\n", argv[0]);
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| 54 | exit (1);
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| 55 | }
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| 56 | }
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| 57 |
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| 58 | if (filename[0] == '\0') {
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| 59 | FatalError (1, "A file name must be specified with -f\n");
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| 60 | }
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| 61 |
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| 62 | // init the text system
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| 63 | TextData textData;
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| 64 | if (!textData.LoadData (filename)) {
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| 65 | FatalError (1, "Couldn't load text information for \"%s\"", filename);
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| 66 | }
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| 67 |
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| 68 | // init the query system
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| 69 | IndexData indexData;
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| 70 | if (!indexData.LoadData (basePath, filename)) {
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| 71 | FatalError (1, "Couldn't load index information for \"%s\"", filename);
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| 72 | }
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| 73 |
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| 74 | // do querying
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| 75 | QueryInfo queryInfo;
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[879] | 76 | SetCStr (queryInfo.docLevel, "Chapter");
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[861] | 77 | queryInfo.maxDocs = 10;
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[855] | 78 | queryInfo.sortByRank = true;
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| 79 | queryInfo.exactWeights = false;
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| 80 | queryInfo.needRankInfo = true;
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| 81 | queryInfo.needTermFreqs = true;
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| 82 |
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| 83 | QueryResult queryResult;
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| 84 | char query[2048];
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| 85 | UCArray queryArray;
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| 86 | QueryNode *queryTree = NULL;
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| 87 |
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| 88 | while (true) {
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| 89 | // cerr << "getting next line\n";
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| 90 | cout << "> ";
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| 91 | cin.getline(query, 2048, '\n');
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| 92 | SetCStr (queryArray, query);
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| 93 |
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| 94 | // check for commands
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| 95 | if (queryArray.size() >= 2 && queryArray[0] == '.') {
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| 96 | if (queryArray[1] == 'q') break; // quit
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[860] | 97 |
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| 98 | if (queryArray[1] == 'p') {
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| 99 | // print
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| 100 | UCArray docText;
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| 101 | unsigned long docNum = 0;
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| 102 | cin >> docNum;
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| 103 | cin.getline(query, 2048, '\n'); // eat up return
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| 104 |
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| 105 | if (!GetDocText (textData, queryInfo.docLevel, docNum, docText)) {
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| 106 | FatalError (1, "Error while trying to get document %u", docNum);
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| 107 | }
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| 108 |
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| 109 | cout << docText << "\n";
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| 110 | }
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[855] | 111 |
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| 112 | } else {
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| 113 | // regular query
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| 114 | queryTree = ParseQuery (queryArray);
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| 115 |
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| 116 | // print the query
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| 117 | PrintNode (cout, queryTree);
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| 118 |
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| 119 | MGQuery (indexData, queryInfo, queryTree, queryResult);
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| 120 | cout << queryResult;
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| 121 | cout << "\n";
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| 122 |
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| 123 | // delete the query
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| 124 | if (queryTree != NULL) delete queryTree;
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| 125 | queryTree = NULL;
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| 126 | }
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| 127 | }
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| 128 |
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| 129 |
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| 130 | // clean up, everybody clean up
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| 131 | textData.UnloadData ();
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| 132 | indexData.UnloadData ();
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| 133 | }
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[860] | 134 |
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