[13] | 1 | /**************************************************************************
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| 2 | *
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| 3 | * mgdictlist.c -- Program to list a dictionary
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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: mgdictlist.c 34 1998-11-25 07:55:52Z rjmcnab $
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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 "memlib.h"
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| 28 | #include "local_strings.h"
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| 29 | #include "netorder.h" /* [RPAP - Jan 97: Endian Ordering] */
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| 30 |
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| 31 | #include "mg_files.h"
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| 32 | #include "text.h"
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| 33 | #include "invf.h"
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| 34 | #include "locallib.h"
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| 35 | #include "words.h"
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| 36 |
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| 37 | /*
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| 38 | $Log$
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[34] | 39 | Revision 1.2 1998/11/25 07:55:49 rjmcnab
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| 40 |
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| 41 | Modified mg to that you can specify the stemmer you want
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| 42 | to use via a command line option. You specify it to
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| 43 | mg_passes during the build process. The number of the
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| 44 | stemmer that you used is stored within the inverted
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| 45 | dictionary header and the stemmed dictionary header so
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| 46 | the correct stemmer is used in later stages of building
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| 47 | and querying.
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| 48 |
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[13] | 49 | Revision 1.1 1998/11/17 09:35:24 rjmcnab
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| 50 | *** empty log message ***
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| 51 |
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| 52 | * Revision 1.4 1994/11/29 00:32:07 tes
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| 53 | * Committing the new merged files and changes.
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| 54 | *
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| 55 | * Revision 1.3 1994/10/20 03:57:01 tes
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| 56 | * I have rewritten the boolean query optimiser and abstracted out the
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| 57 | * components of the boolean query.
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| 58 | *
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| 59 | * Revision 1.2 1994/09/20 04:41:56 tes
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| 60 | * For version 1.1
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| 61 | *
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| 62 | */
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| 63 |
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| 64 | static char *RCSID = "$Id: mgdictlist.c 34 1998-11-25 07:55:52Z rjmcnab $";
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| 65 |
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| 66 |
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| 67 | int quick = 0;
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| 68 | int no_of_words[2];
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| 69 | u_long maxcodelen[2];
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| 70 |
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| 71 | char *dictname = "";
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| 72 |
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| 73 |
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| 74 |
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| 75 |
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| 76 | void
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| 77 | DumpStemDict (FILE * f)
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| 78 | {
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| 79 | struct invf_dict_header idh;
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| 80 | int i;
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| 81 | u_char prev[MAXSTEMLEN + 1];
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| 82 |
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| 83 | fread (&idh, sizeof (idh), 1, f);
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| 84 |
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| 85 | /* [RPAP - Jan 97: Endian Ordering] */
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| 86 | NTOHUL(idh.lookback);
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| 87 | NTOHUL(idh.dict_size);
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| 88 | NTOHUL(idh.total_bytes);
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| 89 | NTOHUL(idh.index_string_bytes);
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| 90 | NTOHD(idh.input_bytes); /* [RJM 07/97: 4G limit] */
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| 91 | NTOHUL(idh.num_of_docs);
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| 92 | NTOHUL(idh.static_num_of_docs);
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| 93 | NTOHUL(idh.num_of_words);
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[34] | 94 | NTOHUL(idh.stemmer_num);
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[13] | 95 | NTOHUL(idh.stem_method);
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| 96 |
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| 97 | if (quick)
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| 98 | printf ("%ld\n", idh.dict_size);
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| 99 | else
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| 100 | {
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| 101 | printf ("# lookback = %lu\n", idh.lookback);
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| 102 | printf ("# dict size = %lu\n", idh.dict_size);
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| 103 | printf ("# total bytes = %lu\n", idh.total_bytes);
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| 104 | printf ("# index string bytes = %lu\n", idh.index_string_bytes);
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| 105 | printf ("# input bytes = %.0f\n", idh.input_bytes); /* [RJM 07/97: 4G limit] */
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| 106 | printf ("# num of docs = %lu\n", idh.num_of_docs);
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| 107 | printf ("# static num of docs = %lu\n", idh.static_num_of_docs);
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| 108 | printf ("# num of words = %lu\n", idh.num_of_words);
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| 109 | printf ("#\n");
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| 110 | }
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| 111 |
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| 112 | for (i = 0; i < idh.dict_size; i++)
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| 113 | {
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| 114 | register unsigned long copy, suff;
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| 115 | unsigned long wcnt, fcnt;
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| 116 |
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| 117 | /* build a new word on top of prev */
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| 118 | copy = getc (f);
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| 119 | suff = getc (f);
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| 120 | *prev = copy + suff;
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| 121 | fread (prev + copy + 1, sizeof (u_char), suff, f);
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| 122 |
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| 123 | /* read other data, but no need to store it */
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| 124 | fread (&fcnt, sizeof (fcnt), 1, f);
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| 125 | fread (&wcnt, sizeof (wcnt), 1, f);
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| 126 |
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| 127 | /* [RPAP - Jan 97: Endian Ordering] */
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| 128 | NTOHUL(fcnt);
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| 129 | NTOHUL(wcnt);
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| 130 |
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| 131 | if (!quick)
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| 132 | {
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| 133 | printf ("%d: %8ld ", i, wcnt);
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| 134 | printf ("/ %5ld ", fcnt);
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| 135 | printf ("%2d %2ld\t\"", *prev, copy);
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| 136 | }
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| 137 | printf ("%s", word2str (prev));
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| 138 | if (quick)
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| 139 | printf (" %ld %ld\n", wcnt, fcnt);
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| 140 | else
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| 141 | {
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| 142 | putchar ('"');
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| 143 | putchar ('\n');
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| 144 | }
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| 145 | }
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| 146 | }
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| 147 |
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| 148 |
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| 149 |
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| 150 |
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| 151 | void
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| 152 | ReadInWords (FILE * f)
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| 153 | {
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| 154 | comp_frags_header cfh;
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| 155 | u_long *codes;
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| 156 | u_char prev[MAXSTEMLEN + 1];
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| 157 | int i;
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| 158 |
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| 159 | if (Read_cfh (f, &cfh, NULL, NULL) == -1)
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| 160 | FatalError (1, "Unable to read in the dictionary");
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| 161 |
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| 162 | printf ("#\n");
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| 163 | printf ("# max code len = %u\n", cfh.hd.maxcodelen);
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| 164 | printf ("# total bytes = %lu\n", cfh.uncompressed_size);
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| 165 | printf ("#\n");
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| 166 |
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| 167 | if (!(codes = Generate_Huffman_Codes (&cfh.hd, NULL)))
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| 168 | FatalError (1, "no memory for huffman codes\n");
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| 169 |
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| 170 | for (i = 0; i < cfh.hd.num_codes; i++)
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| 171 | {
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| 172 | register int val, copy, j, k;
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| 173 | char code[33];
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| 174 | val = fgetc (f);
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| 175 | copy = (val >> 4) & 0xf;
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| 176 | val &= 0xf;
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| 177 |
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| 178 | fread (prev + copy + 1, sizeof (u_char), val, f);
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| 179 | *prev = val + copy;
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| 180 |
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| 181 | for (k = 0, j = cfh.hd.clens[i] - 1; j >= 0; j--, k++)
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| 182 | code[k] = '0' + ((codes[i] >> j) & 1);
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| 183 | code[k] = '\0';
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| 184 |
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| 185 | printf ("%d: %2d : %*s : \"%s\"\n", i, cfh.hd.clens[i],
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| 186 | cfh.hd.maxcodelen, code, word2str (prev));
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| 187 | }
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| 188 | Xfree (codes);
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| 189 | Xfree (cfh.hd.clens);
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| 190 | }
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| 191 |
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| 192 |
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| 193 | void
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| 194 | ReadCharHuffman (FILE * f, char *title)
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| 195 | {
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| 196 | int i;
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| 197 | huff_data hd;
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| 198 | u_long *codes;
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| 199 |
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| 200 | if (Read_Huffman_Data (f, &hd, NULL, NULL) == -1)
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| 201 | FatalError (1, "Unable to read huffman data");
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| 202 |
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| 203 | if (!(codes = Generate_Huffman_Codes (&hd, NULL)))
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| 204 | FatalError (1, "no memory for huffman codes\n");
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| 205 |
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| 206 | printf ("#\n# %s\n#\n", title);
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| 207 | for (i = 0; i < hd.num_codes; i++)
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| 208 | if (hd.clens[i])
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| 209 | {
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| 210 | int j, k;
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| 211 | char code[33];
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| 212 | for (k = 0, j = hd.clens[i] - 1; j >= 0; j--, k++)
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| 213 | code[k] = '0' + ((codes[i] >> j) & 1);
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| 214 | code[k] = '\0';
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| 215 | printf ("%2d : %*s : \"%s\"\n", hd.clens[i],
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| 216 | hd.maxcodelen, code, char2str (i));
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| 217 | }
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| 218 | Xfree (codes);
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| 219 | Xfree (hd.clens);
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| 220 | }
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| 221 |
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| 222 |
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| 223 | void
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| 224 | ReadLenHuffman (FILE * f, char *title)
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| 225 | {
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| 226 | int i;
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| 227 | huff_data hd;
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| 228 | u_long *codes;
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| 229 |
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| 230 | if (Read_Huffman_Data (f, &hd, NULL, NULL) == -1)
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| 231 | FatalError (1, "Unable to read huffman data");
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| 232 |
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| 233 | if (!(codes = Generate_Huffman_Codes (&hd, NULL)))
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| 234 | FatalError (1, "no memory for huffman codes\n");
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| 235 |
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| 236 | printf ("#\n# %s\n#\n", title);
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| 237 | for (i = 0; i < hd.num_codes; i++)
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| 238 | if (hd.clens[i])
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| 239 | {
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| 240 | int j, k;
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| 241 | char code[33];
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| 242 | for (k = 0, j = hd.clens[i] - 1; j >= 0; j--, k++)
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| 243 | code[k] = '0' + ((codes[i] >> j) & 1);
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| 244 | code[k] = '\0';
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| 245 | printf ("%2d : %*s : %d\n", hd.clens[i],
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| 246 | hd.maxcodelen, code, i);
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| 247 | }
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| 248 | Xfree (codes);
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| 249 | Xfree (hd.clens);
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| 250 | }
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| 251 |
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| 252 |
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| 253 |
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| 254 |
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| 255 |
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| 256 | void
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| 257 | DumpTextDict (FILE * f)
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| 258 | {
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| 259 | struct compression_dict_header cdh;
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| 260 | int which;
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| 261 |
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| 262 | if (Read_cdh (f, &cdh, NULL, NULL) == -1)
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| 263 | FatalError (1, "Unable to read dictionary header");
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| 264 | switch (cdh.dict_type)
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| 265 | {
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| 266 | case MG_COMPLETE_DICTIONARY:
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| 267 | printf ("# COMPLETE DICTIONARY\n");
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| 268 | break;
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| 269 | case MG_PARTIAL_DICTIONARY:
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| 270 | printf ("# PARTIAL DICTIONARY\n");
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| 271 | break;
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| 272 | case MG_SEED_DICTIONARY:
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| 273 | printf ("# SEED DICTIONARY\n");
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| 274 | break;
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| 275 | }
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| 276 | printf ("# num words = %lu\n", cdh.num_words[1]);
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| 277 | printf ("# num word chars = %lu\n", cdh.num_word_chars[1]);
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| 278 | printf ("# num non-words = %lu\n", cdh.num_words[0]);
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| 279 | printf ("# num non-word chars = %lu\n", cdh.num_word_chars[0]);
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| 280 | printf ("# lookback = %lu\n", cdh.lookback);
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| 281 |
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| 282 | for (which = 0; which < 2; which++)
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| 283 | switch (cdh.dict_type)
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| 284 | {
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| 285 | case MG_COMPLETE_DICTIONARY:
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| 286 | {
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| 287 | ReadInWords (f);
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| 288 | }
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| 289 | break;
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| 290 | case MG_PARTIAL_DICTIONARY:
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| 291 | {
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| 292 | if (cdh.num_words[which])
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| 293 | ReadInWords (f);
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| 294 |
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| 295 | ReadCharHuffman (f, "Characters");
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| 296 | ReadLenHuffman (f, "Lengths");
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| 297 | }
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| 298 | break;
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| 299 | case MG_SEED_DICTIONARY:
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| 300 | {
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| 301 | if (cdh.num_words[which])
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| 302 | ReadInWords (f);
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| 303 |
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| 304 | ReadCharHuffman (f, "Characters");
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| 305 | ReadLenHuffman (f, "Lengths");
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| 306 | }
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| 307 | break;
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| 308 | }
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| 309 | }
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| 310 |
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| 311 |
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| 312 |
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| 313 |
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| 314 | void
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| 315 | DumpStatsDict (FILE * f)
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| 316 | {
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| 317 | int i;
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| 318 | compression_stats_header csh;
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| 319 |
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| 320 | fread (&csh, sizeof (csh), 1, f);
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| 321 |
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| 322 | for (i = 0; i < 2; i++)
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| 323 | {
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| 324 | int j;
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| 325 | frags_stats_header fsh;
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| 326 |
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| 327 | fread (&fsh, sizeof (fsh), 1, f);
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| 328 |
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| 329 | /* [RPAP - Jan 97: Endian Ordering] */
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| 330 | NTOHUL(fsh.num_frags);
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| 331 | NTOHUL(fsh.mem_for_frags);
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| 332 |
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| 333 | if (!quick)
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| 334 | printf ("#\n# num %9s = %lu\n#\n", i ? "words" : "non-words",
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| 335 | fsh.num_frags);
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| 336 |
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| 337 | for (j = 0; j < fsh.num_frags; j++)
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| 338 | {
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| 339 | u_char Word[16];
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| 340 | u_long freq, occur_num;
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| 341 |
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| 342 | fread (&freq, sizeof (freq), 1, f);
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| 343 | fread (&occur_num, sizeof (occur_num), 1, f);
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| 344 |
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| 345 | /* [RPAP - Jan 97: Endian Ordering] */
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| 346 | NTOHUL(freq);
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| 347 | NTOHUL(occur_num);
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| 348 |
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| 349 | Word[0] = fgetc (f);
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| 350 | fread (Word + 1, Word[0], 1, f);
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| 351 | printf ("%d: %7ld : %7ld : \"%s\"\n", j, freq,
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| 352 | occur_num, word2str (Word));
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| 353 | }
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| 354 | }
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| 355 | }
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| 356 |
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| 357 |
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[34] | 358 | int main (int argc, char **argv)
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[13] | 359 | {
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| 360 | FILE *fp;
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| 361 | unsigned long magic = 0;
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| 362 |
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| 363 | if (argc < 2)
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| 364 | FatalError (1, "A file name must be specified");
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| 365 | dictname = argv[1];
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| 366 | if (strcmp (dictname, "-q") == 0)
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| 367 | {
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| 368 | quick = 1;
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| 369 | if (argc < 3)
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| 370 | FatalError (1, "A file name must be specified");
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| 371 | dictname = argv[2];
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| 372 | }
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| 373 | if (!(fp = fopen (dictname, "rb"))) /* [RPAP - Feb 97: WIN32 Port] */
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| 374 | FatalError (1, "Unable to open \"%s\"", dictname);
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| 375 |
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| 376 | fread (&magic, sizeof (magic), 1, fp);
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| 377 |
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| 378 | NTOHUL(magic); /* [RPAP - Jan 97: Endian Ordering] */
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| 379 |
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| 380 | switch (magic)
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| 381 | {
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| 382 | case MAGIC_STEM_BUILD:
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| 383 | if (!quick)
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| 384 | printf ("# Contents of STEM file \"%s\"\n#\n", dictname);
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| 385 | DumpStemDict (fp);
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| 386 | break;
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| 387 | case MAGIC_DICT:
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| 388 | if (!quick)
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| 389 | printf ("# Contents of DICT file \"%s\"\n#\n", dictname);
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| 390 | DumpTextDict (fp);
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| 391 | break;
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| 392 | case MAGIC_STATS_DICT:
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| 393 | if (!quick)
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| 394 | printf ("# Contents of STATS file \"%s\"\n#\n", dictname);
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| 395 | DumpStatsDict (fp);
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| 396 | break;
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| 397 | default:
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| 398 | FatalError (1, "Bad magic number. \"%s\" cannot be dumped", dictname);
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| 399 | }
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| 400 | fclose (fp);
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[34] | 401 | return 0;
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[13] | 402 | }
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