-/* $Id: rset.h,v 1.33 2004-09-01 15:01:32 heikki Exp $
+/* $Id: rset.h,v 1.36 2004-09-30 13:07:06 heikki Exp $
Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
Index Data Aps
void (*f_delete)(RSET ct);
RSFD (*f_open)(RSET ct, int wflag);
void (*f_close)(RSFD rfd);
- void (*f_rewind)(RSFD rfd);
int (*f_forward)(RSFD rfd, void *buf, const void *untilbuf);
void (*f_pos)(RSFD rfd, double *current, double *total);
/* returns -1,-1 if pos function not implemented for this type */
struct key_control {
int key_size;
+ int scope; /* default for what level we operate (book/chapter/verse) on*/
+ /* usual sysno/seqno is 2 */
int (*cmp) (const void *p1, const void *p2);
void (*key_logdump_txt) (int logmask, const void *p, const char *txt);
zint (*getseq)(const void *p);
char my_nmem; /* Should the nmem be destroyed with the rset? */
/* 1 if created with it, 0 if passed from above */
RSFD free_list; /* all rfd's allocated but not currently in use */
+ int scope; /* On what level do we count hits and compare them? */
} rset;
-/* rset is a "virtual base class", which will never exist on its own */
-/* all instances are rsets of some specific type, like rsisamb, or rsbool */
-/* They keep their own stuff behind the priv pointer. */
+/* rset is a "virtual base class", which will never exist on its own
+ * all instances are rsets of some specific type, like rsisamb, or rsbool
+ * They keep their own stuff behind the priv pointer. */
+
+/* On the old sysno-seqno type isams, the scope was hard-coded to be 2.
+ * This means that we count hits on the sysno level, and when matching an
+ * 'and', we consider it a match if both term occur within the same sysno.
+ * In more complex isams we can specify on what level we wish to do the
+ * matching and counting of hits. For example, we can have book / chapter /
+ * verse, and a seqno. Scope 2 means then "give me all verses that match",
+ * 3 would be chapters, 4 books.
+ * The resolution tells how much of the occurences we need to return. If we
+ * are doing some sort of proximity, we need to get the seqnos of all
+ * occurences, whereas if we are only counting hits, we do not need anything
+ * below the scope. Again 1 is seqnos, 2 sysnos (or verses), 3 books, etc.
+ */
+/* FIXME - Add a resolution, to decide on what level we want to return */
+/* hits. That can well be below scope, if we need to get seqnos for prox */
+/* or suchlike... */
RSFD rfd_create_base(RSET rs);
void rfd_delete_base(RSFD rfd);
RSET rset_create_base(const struct rset_control *sel,
NMEM nmem,
- const struct key_control *kcontrol);
+ const struct key_control *kcontrol,
+ int scope );
void rset_delete(RSET rs);
RSET rset_dup (RSET rs);
/* void rset_close(RSFD rfd); */
#define rset_close(rfd) (*(rfd)->rset->control->f_close)(rfd)
-/* void rset_rewind(RSFD rfd); */
-#define rset_rewind(rfd) (*(rfd)->rset->control->f_rewind)((rfd))
-
/* int rset_forward(RSFD rfd, void *buf, void *untilbuf); */
#define rset_forward(rfd, buf, untilbuf) \
(*(rfd)->rset->control->f_forward)((rfd),(buf),(untilbuf))
#define rset_type(rs) ((rs)->control->desc)
RSET rstemp_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
const char *temp_path);
RSET rsnull_create(NMEM nmem, const struct key_control *kcontrol);
RSET rsbool_create_and( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
RSET rset_l, RSET rset_r);
RSET rsbool_create_or ( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
RSET rset_l, RSET rset_r);
RSET rsbool_create_not( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
RSET rset_l, RSET rset_r);
-RSET rsbetween_create( NMEM nmem, const struct key_control *kcontrol,
+RSET rsbetween_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
RSET rset_l, RSET rset_m, RSET rset_r,
RSET rset_attr);
-RSET rsmultior_create( NMEM nmem, const struct key_control *kcontrol,
- int no_rsets, RSET* rsets);
+RSET rsmultior_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
+ int no_rsets, RSET* rsets);
+
+RSET rsmultiand_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
+ int no_rsets, RSET* rsets);
RSET rsprox_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
int rset_no, RSET *rset,
int ordered, int exclusion,
int relation, int distance);
RSET rsisamb_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
ISAMB is, ISAMB_P pos);
RSET rsisamc_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
ISAMC is, ISAMC_P pos);
RSET rsisams_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
ISAMS is, ISAMS_P pos);
projects / idzebra-moved-to-github.git / blobdiff