* Sebastian Hammer, Adam Dickmeiss
*
* $Log: d1_map.c,v $
- * Revision 1.1 1995-11-01 11:56:08 quinn
+ * Revision 1.7 1995-12-13 13:44:31 quinn
+ * Modified Data1-system to use nmem
+ *
+ * Revision 1.6 1995/12/12 16:37:08 quinn
+ * Added destroy element to data1_node.
+ *
+ * Revision 1.5 1995/12/12 14:11:31 quinn
+ * More work on the large-record problem.
+ *
+ * Revision 1.4 1995/12/11 15:22:37 quinn
+ * Added last_child field to the node.
+ * Rewrote schema-mapping.
+ *
+ * Revision 1.3 1995/11/01 16:34:56 quinn
+ * Making data1 look for tables in data1_tabpath
+ *
+ * Revision 1.2 1995/11/01 13:54:46 quinn
+ * Minor adjustments
+ *
+ * Revision 1.1 1995/11/01 11:56:08 quinn
* Added Retrieval (data management) functions en masse.
*
*
#include <log.h>
#include <readconf.h>
-#include "data1.h"
+#include <tpath.h>
+#include <data1.h>
#include "d1_map.h"
data1_maptab *data1_read_maptab(char *file)
char *argv[50], line[512];
data1_mapunit **mapp;
- if (!(f = fopen(file, "r")))
+ if (!(f = yaz_path_fopen(data1_tabpath, file, "r")))
{
logf(LOG_WARN|LOG_ERRNO, "%s", file);
return 0;
{
int type, np;
char valstr[512], parm[512];
- int numval;
if (ep)
ep++;
return res;
}
+#if 1
+
/*
* Locate node with givel elementname.
* NOTE: This is stupid - we don't find repeats this way.
return 1;
}
-static int map_children(data1_node *n, data1_maptab *map, data1_node *res)
+static int map_children(data1_node *n, data1_maptab *map, data1_node *res,
+ NMEM mem)
{
data1_node *c;
data1_mapunit *m;
c->u.tag.element->name))
{
data1_node *pn = res;
+ data1_node *cur = pn->last_child;
data1_maptag *mt;
- data1_node *l;
/*
* process the target path specification.
*/
for (mt = m->target_path; mt; mt = mt->next)
{
- int match = 0;
- data1_node *cur;
- data1_node *last;
-
- for (l = pn->child, last = 0; l; last = l, l = l->next)
- if (!match)
- match = tagmatch(l, mt);
- else
- if (!tagmatch(l, mt))
- break;
- if (!match || !mt->next || mt->new_field)
+ if (!cur || mt->new_field || !tagmatch(cur, mt))
{
- cur = data1_mk_node();
+ cur = data1_mk_node(mem);
cur->which = DATA1N_tag;
cur->u.tag.element = 0;
cur->u.tag.tag = mt->value.string;
cur->u.tag.node_selected = 0;
cur->parent = pn;
cur->root = pn->root;
- if (!last)
- {
- cur->next = pn->child;
+ if (!pn->child)
pn->child = cur;
- }
- else
- {
- cur->next = last->next;
- last->next = cur;
- }
+ if (pn->last_child)
+ pn->last_child->next = cur;
+ pn->last_child = cur;
pn->num_children++;
}
- else
- cur = last ? last : pn->child;
- if (mt ->next)
+ if (mt->next)
pn = cur;
else if (!m->no_data)
{
cur->child = c->child;
+ cur->last_child = c->last_child;
cur->num_children = c->num_children;
c->child = 0;
+ c->last_child = 0;
c->num_children = 0;
}
}
+ break;
}
}
- if (map_children(c, map, res) < 0)
+ if (map_children(c, map, res, mem) < 0)
return -1;
}
return 0;
}
+
+#else
+
+/*
+ * See if the node n is equivalent to the tag t.
+ */
+static int tagmatch(data1_node *n, data1_maptag *t)
+{
+ if (n->which != DATA1N_tag)
+ return 0;
+ if (n->u.tag.element)
+ {
+ if (n->u.tag.element->tag->tagset->type != t->type)
+ return 0;
+ if (n->u.tag.element->tag->which == DATA1T_numeric)
+ {
+ if (t->which != D1_MAPTAG_numeric)
+ return 0;
+ if (n->u.tag.element->tag->value.numeric != t->value.numeric)
+ return 0;
+ }
+ else
+ {
+ if (t->which != D1_MAPTAG_string)
+ return 0;
+ if (data1_matchstr(n->u.tag.element->tag->value.string,
+ t->value.string))
+ return 0;
+ }
+ }
+ else /* local tag */
+ {
+ char str[10];
+
+ if (t->type != 3)
+ return 0;
+ if (t->which == D1_MAPTAG_numeric)
+ sprintf(str, "%d", t->value.numeric);
+ else
+ strcpy(str, t->value.string);
+ if (data1_matchstr(n->u.tag.tag, str))
+ return 0;
+ }
+ return 1;
+}
+
+static int map_elements(data1_node *res, data1_node *n, data1_mapunit *m)
+{
+ data1_node *c;
+
+ for (c = n->child; c; c = c->next)
+ {
+ if (c->which == DATA1N_tag)
+ {
+ if (c->u.tag.element && !data1_matchstr(c->u.tag.element->name,
+ m->source_element_name))
+ {
+ /* Process target path specification */
+ data1_maptag *mt;
+ data1_node *pn = res, *cur = pn->last_child;
+
+ for (mt = m->target_path; mt; mt = mt->next)
+ {
+ if (!cur || !tagmatch(cur, mt))
+ {
+ cur = data1_mk_node();
+ cur->which = DATA1N_tag;
+ cur->u.tag.element = 0;
+ cur->u.tag.tag = mt->value.string;
+ cur->u.tag.node_selected = 0;
+ cur->parent = pn;
+ cur->root = pn->root;
+ if (!pn->child)
+ pn->child = cur;
+ if (pn->last_child)
+ pn->last_child->next = cur;
+ pn->last_child = cur;
+ pn->num_children++;
+ }
+ if (mt->next)
+ pn = cur;
+ else if (!m->no_data)
+ {
+ cur->child = c->child;
+ cur->num_children = c->num_children;
+ c->child = 0;
+ c->num_children = 0;
+ }
+ }
+ }
+ else if (map_elements(res, c, m) < 0)
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int map_record(data1_node *res, data1_node *n, data1_maptab *map)
+{
+ data1_mapunit *m;
+
+ for (m = map->map; m; m = m->next)
+ if (map_elements(res, n, m) < 0)
+ return -1;
+ return 0;
+}
+
+#endif
+
/*
* Create a (possibly lossy) copy of the given record based on the
* table. The new copy will refer back to the data of the original record,
* which should not be discarded during the lifetime of the copy.
*/
-data1_node *data1_map_record(data1_node *n, data1_maptab *map)
+data1_node *data1_map_record(data1_node *n, data1_maptab *map, NMEM m)
{
- data1_node *res = data1_mk_node();
+ data1_node *res = data1_mk_node(m);
res->which = DATA1N_root;
res->u.root.type = map->target_absyn_name;
res->parent = 0;
res->root = res;
- if (map_children(n, map, res) < 0)
+ if (map_children(n, map, res, m) < 0)
{
data1_free_tree(res);
return 0;
}
return res;
}
+