2 * Copyright (C) 1994-1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.11 1995-10-06 16:33:37 adam
8 * Use attribute mappings.
10 * Revision 1.10 1995/09/29 14:01:41 adam
13 * Revision 1.9 1995/09/28 12:10:32 adam
14 * Bug fixes. Field prefix used in queries.
16 * Revision 1.8 1995/09/28 09:19:42 adam
17 * xfree/xmalloc used everywhere.
18 * Extract/retrieve method seems to work for text records.
20 * Revision 1.7 1995/09/27 12:22:28 adam
21 * More work on extract in record control.
22 * Field name is not in isam keys but in prefix in dictionary words.
24 * Revision 1.6 1995/09/14 07:48:23 adam
25 * Record control management.
27 * Revision 1.5 1995/09/11 13:09:34 adam
28 * More work on relevance feedback.
30 * Revision 1.4 1995/09/08 14:52:27 adam
31 * Minor changes. Dictionary is lower case now.
33 * Revision 1.3 1995/09/07 13:58:36 adam
34 * New parameter: result-set file descriptor (RSFD) to support multiple
35 * positions within the same result-set.
36 * Boolean operators: and, or, not implemented.
37 * Result-set references.
39 * Revision 1.2 1995/09/06 16:11:17 adam
40 * Option: only one word key per file.
42 * Revision 1.1 1995/09/04 09:10:36 adam
43 * More work on index add/del/update.
44 * Merge sort implemented.
45 * Initial work on z39 server.
57 void key_logdump (int logmask, const void *p)
61 memcpy (&key, p, sizeof(key));
62 logf (logmask, "%7d s=%-4d", key.sysno, key.seqno);
65 int key_compare (const void *p1, const void *p2)
67 const struct it_key *i1 = p1, *i2 = p2;
68 if (i1->sysno != i2->sysno)
70 if (i1->sysno > i2->sysno)
76 if (i1->seqno != i2->seqno)
78 if (i1->seqno > i2->seqno)
84 if (i1->freq != i2->freq)
86 if (i1->freq > i2->freq)
95 int key_qsort_compare (const void *p1, const void *p2)
99 char *cp1 = *(char **) p1;
100 char *cp2 = *(char **) p2;
102 if ((r = strcmp (cp1, cp2)))
105 if ((r = key_compare (cp1+l+1, cp2+l+1)))
107 return cp1[l] - cp2[l];
110 int index_char_cvt (int c)
115 int index_word_prefix (char *string, int attset_ordinal,
118 sprintf (string, "%c%04d", attset_ordinal + '0', local_attribute);