-/* $Id: data1.h,v 1.1 2004-09-28 10:15:03 adam Exp $
+/* $Id: data1.h,v 1.4 2004-10-04 09:20:31 adam Exp $
Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
Index Data Aps
#include <yaz/proto.h>
#include <idzebra/version.h>
-#include <d1_attset.h>
-#include <d1_map.h>
#include <yaz/yaz-util.h>
#include <yaz/wrbuf.h>
#define DATA1_MAX_SYMBOL 31
+/*
+ * This structure describes a attset, perhaps made up by inclusion
+ * (supersetting) of other attribute sets. When indexing and searching,
+ * we perform a normalisation, where we associate a given tag with
+ * the set that originally defined it, rather than the superset. This
+ * allows the most flexible access. Eg, the tags common to GILS and BIB-1
+ * should be searchable by both names.
+ */
+
+struct data1_attset;
+
+typedef struct data1_local_attribute
+{
+ int local;
+ struct data1_local_attribute *next;
+} data1_local_attribute;
+
+typedef struct data1_attset data1_attset;
+typedef struct data1_att data1_att;
+typedef struct data1_attset_child data1_attset_child;
+
+struct data1_att
+{
+ data1_attset *parent; /* attribute set */
+ char *name; /* symbolic name of this attribute */
+ int value; /* attribute value */
+ data1_local_attribute *locals; /* local index values */
+ data1_att *next;
+};
+
+struct data1_attset_child {
+ data1_attset *child;
+ data1_attset_child *next;
+};
+
+struct data1_attset
+{
+ char *name; /* symbolic name */
+ oid_value reference; /* external ID of attset */
+ data1_att *atts; /* attributes */
+ data1_attset_child *children; /* included attset */
+ data1_attset *next; /* next in cache */
+};
+
+typedef struct data1_handle_info *data1_handle;
+
+YAZ_EXPORT data1_att *data1_getattbyname(data1_handle dh, data1_attset *s,
+ char *name);
+YAZ_EXPORT data1_attset *data1_read_attset(data1_handle dh, const char *file);
+
+YAZ_EXPORT data1_attset *data1_empty_attset(data1_handle dh);
+
+typedef struct data1_maptag
+{
+ int new_field;
+ int type;
+#define D1_MAPTAG_numeric 1
+#define D1_MAPTAG_string 2
+ int which;
+ union
+ {
+ int numeric;
+ char *string;
+ } value;
+ struct data1_maptag *next;
+} data1_maptag;
+
+typedef struct data1_mapunit
+{
+ int no_data;
+ char *source_element_name;
+ data1_maptag *target_path;
+ struct data1_mapunit *next;
+} data1_mapunit;
+
+typedef struct data1_maptab
+{
+ char *name;
+ oid_value target_absyn_ref;
+ char *target_absyn_name;
+ data1_mapunit *map;
+ struct data1_maptab *next;
+} data1_maptab;
+
typedef struct data1_name
{
char *name;
char *sub_name;
struct data1_element *children;
struct data1_element *next;
+ struct data1_hash_table *hash;
} data1_element;
typedef struct data1_sub_elements {