1 | /**************************************************************************
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2 | *
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3 | * mg_invf_dump.c -- Program to dump uot an inverted fil
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4 | * Copyright (C) 1994 Neil Sharman
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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: mg_invf_dump.c 3745 2003-02-20 21:20:24Z mdewsnip $
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21 | *
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22 | **************************************************************************/
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23 |
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24 | #include "sysfuncs.h"
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25 |
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26 | #include "messages.h"
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27 | #include "timing.h"
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28 | #include "bitio_m.h"
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29 | #include "bitio_m_stdio.h"
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30 | #include "bitio_gen.h"
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31 | #include "netorder.h" /* [RPAP - Jan 97: Endian Ordering] */
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32 |
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33 | #include "mg_files.h"
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34 | #include "locallib.h"
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35 | #include "words.h"
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36 | #include "invf.h"
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37 |
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38 | extern unsigned long S_btg;
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39 |
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40 | /*
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41 | $Log$
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42 | Revision 1.1 2003/02/20 21:18:24 mdewsnip
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43 | Addition of MG package for search and retrieval
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44 |
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45 | Revision 1.2 2001/06/12 01:41:39 kjm18
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46 | changed the help message
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47 |
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48 | Revision 1.1 1999/08/10 21:18:09 sjboddie
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49 | renamed mg-1.3d directory mg
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50 |
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51 | Revision 1.2 1998/11/25 07:55:46 rjmcnab
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52 |
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53 | Modified mg to that you can specify the stemmer you want
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54 | to use via a command line option. You specify it to
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55 | mg_passes during the build process. The number of the
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56 | stemmer that you used is stored within the inverted
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57 | dictionary header and the stemmed dictionary header so
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58 | the correct stemmer is used in later stages of building
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59 | and querying.
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60 |
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61 | Revision 1.1 1998/11/17 09:35:05 rjmcnab
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62 | *** empty log message ***
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63 |
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64 | * Revision 1.3 1994/11/29 00:32:01 tes
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65 | * Committing the new merged files and changes.
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66 | *
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67 | * Revision 1.2 1994/09/20 04:41:50 tes
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68 | * For version 1.1
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69 | *
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70 | */
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71 |
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72 | static char *RCSID = "$Id: mg_invf_dump.c 3745 2003-02-20 21:20:24Z mdewsnip $";
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73 |
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74 |
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75 |
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76 | static void process_files (char *filename);
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77 |
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78 | int binary = 0;
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79 | int word_counts = 0;
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80 | int term_dump = 0;
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81 |
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82 |
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83 | int main (int argc, char **argv)
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84 | {
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85 | ProgTime start;
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86 | char *dir_name, *file_name = "";
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87 | int ch;
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88 | msg_prefix = argv[0];
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89 | dir_name = getenv ("MGDATA");
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90 | opterr = 0;
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91 | msg_prefix = argv[0];
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92 | while ((ch = getopt (argc, argv, "hbwtf:d:")) != -1)
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93 | switch (ch)
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94 | {
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95 | case 'f': /* input file */
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96 | file_name = optarg;
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97 | break;
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98 | case 'd':
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99 | set_basepath(optarg);
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100 | break;
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101 | case 'b':
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102 | binary = 1;
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103 | break;
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104 | case 'w':
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105 | word_counts = 1;
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106 | break;
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107 | case 't':
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108 | term_dump = 1;
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109 | break;
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110 | case 'h':
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111 | case '?':
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112 | fprintf (stderr, "usage: %s [-h] [-b] [-w] [-t] [-f input_file]"
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113 | "[-d data directory]\n"
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114 | "(b - binary mode, w - wordcount, t - term dump)\n", argv[0]);
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115 | exit (1);
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116 | }
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117 | GetTime (&start);
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118 | process_files (file_name);
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119 | Message ("%s\n", ElapsedTime (&start, NULL));
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120 | return 0;
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121 | }
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122 |
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123 | static void
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124 | process_files (char *name)
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125 | {
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126 | unsigned long N, Nstatic, k;
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127 | FILE *dict;
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128 | FILE *invf;
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129 | struct invf_dict_header idh;
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130 | struct invf_file_header ifh;
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131 | int i; /* [RPAP - Jan 97: Endian Ordering] */
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132 |
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133 | dict = open_file (name, INVF_DICT_SUFFIX, "rb", MAGIC_STEM_BUILD, MG_ABORT); /* [RPAP - Feb 97: WIN32 Port] */
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134 |
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135 | fread ((char *) &idh, sizeof (idh), 1, dict);
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136 |
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137 | /* [RPAP - Jan 97: Endian Ordering] */
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138 | NTOHUL(idh.lookback);
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139 | NTOHUL(idh.dict_size);
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140 | NTOHUL(idh.total_bytes);
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141 | NTOHUL(idh.index_string_bytes);
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142 | NTOHD(idh.input_bytes); /* [RJM 07/97: 4G limit] */
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143 | NTOHUL(idh.num_of_docs);
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144 | NTOHUL(idh.static_num_of_docs);
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145 | NTOHUL(idh.num_of_words);
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146 | NTOHUL(idh.stemmer_num);
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147 | NTOHUL(idh.stem_method);
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148 |
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149 | if (!(invf = open_file (name, INVF_SUFFIX ".ORG", "rb", MAGIC_INVF, MG_CONTINUE))) /* [RPAP - Feb 97: WIN32 Port] */
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150 | invf = open_file (name, INVF_SUFFIX, "rb", MAGIC_INVF, MG_ABORT); /* [RPAP - Feb 97: WIN32 Port] */
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151 |
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152 | fread ((char *) &ifh, sizeof (ifh), 1, invf);
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153 |
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154 | /* [RPAP - Jan 97: Endian Ordering] */
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155 | NTOHUL(ifh.no_of_words);
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156 | NTOHUL(ifh.no_of_ptrs);
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157 | NTOHUL(ifh.skip_mode);
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158 | for (i = 0; i < 16; i++)
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159 | NTOHUL(ifh.params[i]);
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160 | NTOHUL(ifh.InvfLevel);
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161 |
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162 | if (ifh.skip_mode != 0)
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163 | FatalError (1, "The invf file contains skips. Unable to dump.");
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164 |
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165 | DECODE_START (invf)
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166 | N = idh.num_of_docs;
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167 | Nstatic = idh.static_num_of_docs;
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168 | if (binary)
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169 | {
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170 | fwrite ((char *) &N, sizeof (N), 1, stdout);
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171 | fwrite ((char *) &ifh.no_of_words, sizeof (ifh.no_of_words), 1, stdout);
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172 | }
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173 | else
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174 | printf ("%ld %ld\n", N, ifh.no_of_words);
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175 | for (k = 0; k < ifh.no_of_words; k++)
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176 | {
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177 | int i, blk, doc;
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178 | register unsigned long suff, prefix;
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179 | unsigned long fcnt, wcnt;
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180 | char term[MAXSTEMLEN + 1];
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181 |
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182 | prefix = fgetc (dict);
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183 | suff = fgetc (dict);
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184 | fread (&term[prefix], sizeof (char), suff, dict);
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185 | fread ((char *) &fcnt, sizeof (fcnt), 1, dict);
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186 | fread ((char *) &wcnt, sizeof (wcnt), 1, dict);
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187 | term[prefix + suff] = '\0';
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188 |
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189 | /* [RPAP - Jan 97: Endian Ordering] */
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190 | NTOHUL(fcnt);
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191 | NTOHUL(wcnt);
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192 |
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193 | if (binary)
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194 | fwrite ((char *) &fcnt, sizeof (fcnt), 1, stdout);
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195 | else
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196 | {
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197 | if (term_dump)
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198 | printf ("%ld \"%s\"\n", fcnt, term);
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199 | else
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200 | printf ("%ld\n", fcnt);
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201 | }
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202 | blk = BIO_Bblock_Init (Nstatic, fcnt);
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203 | for (doc = i = 0; i < fcnt; i++)
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204 | {
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205 | int num;
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206 | BBLOCK_DECODE (num, blk);
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207 | doc += num;
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208 | if (binary)
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209 | fwrite ((char *) &doc, sizeof (doc), 1, stdout);
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210 | else
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211 | printf (" %d", doc);
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212 | if (ifh.InvfLevel >= 2)
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213 | {
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214 | int count;
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215 | GAMMA_DECODE (count);
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216 | if (word_counts)
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217 | if (binary)
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218 | fwrite ((char *) &count, sizeof (count), 1, stdout);
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219 | else
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220 | printf (" %d", count);
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221 | }
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222 | if (!binary)
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223 | putchar ('\n');
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224 | }
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225 | while (__btg)
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226 | DECODE_BIT;
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227 | }
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228 | DECODE_DONE
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229 | }
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