X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=index%2Fkcompare.c;h=981a485d9731acf13d64dcb09c95422382e7c4a1;hb=b0507b858a53d4fccea867fadb060ba1ef8ecace;hp=6f9bbfd1866f0f804dd2e6f50a67e5d643faa335;hpb=9765f689118107e45f5fba7261363980d378f7b3;p=idzebra-moved-to-github.git diff --git a/index/kcompare.c b/index/kcompare.c index 6f9bbfd..981a485 100644 --- a/index/kcompare.c +++ b/index/kcompare.c @@ -4,7 +4,27 @@ * Sebastian Hammer, Adam Dickmeiss * * $Log: kcompare.c,v $ - * Revision 1.4 1995-09-08 14:52:27 adam + * Revision 1.10 1995-09-29 14:01:41 adam + * Bug fixes. + * + * Revision 1.9 1995/09/28 12:10:32 adam + * Bug fixes. Field prefix used in queries. + * + * Revision 1.8 1995/09/28 09:19:42 adam + * xfree/xmalloc used everywhere. + * Extract/retrieve method seems to work for text records. + * + * Revision 1.7 1995/09/27 12:22:28 adam + * More work on extract in record control. + * Field name is not in isam keys but in prefix in dictionary words. + * + * Revision 1.6 1995/09/14 07:48:23 adam + * Record control management. + * + * Revision 1.5 1995/09/11 13:09:34 adam + * More work on relevance feedback. + * + * Revision 1.4 1995/09/08 14:52:27 adam * Minor changes. Dictionary is lower case now. * * Revision 1.3 1995/09/07 13:58:36 adam @@ -31,29 +51,36 @@ #include "index.h" +void key_logdump (int logmask, const void *p) +{ + struct it_key key; + + memcpy (&key, p, sizeof(key)); + logf (logmask, "%7d s=%-4d", key.sysno, key.seqno); +} + int key_compare (const void *p1, const void *p2) { - struct it_key i1, i2; - memcpy (&i1, p1, sizeof(i1)); - memcpy (&i2, p2, sizeof(i2)); - if (i1.sysno != i2.sysno) + const struct it_key *i1 = p1, *i2 = p2; + if (i1->sysno != i2->sysno) { - if (i1.sysno > i2.sysno) + if (i1->sysno > i2->sysno) return 2; else return -2; } - if (i1.seqno != i2.seqno) +#if IT_KEY_HAVE_SEQNO + if (i1->seqno != i2->seqno) { - if (i1.seqno > i2.seqno) + if (i1->seqno > i2->seqno) return 1; else return -1; } -#if IT_KEY_HAVE_FIELD - if (i1.field != i2.field) +#else + if (i1->freq != i2->freq) { - if (i1.field > i2.field) + if (i1->freq > i2->freq) return 1; else return -1; @@ -62,7 +89,28 @@ int key_compare (const void *p1, const void *p2) return 0; } +int key_qsort_compare (const void *p1, const void *p2) +{ + int r; + size_t l; + char *cp1 = *(char **) p1; + char *cp2 = *(char **) p2; + + if ((r = strcmp (cp1, cp2))) + return r; + l = strlen(cp1)+1; + if ((r = key_compare (cp1+l+1, cp2+l+1))) + return r; + return cp1[l] - cp2[l]; +} + int index_char_cvt (int c) { return tolower (c); } + +int index_word_prefix (char *string, int attrSet, int attrUse) +{ + sprintf (string, "%c%04d", attrSet + '0', attrUse); + return 5; +}