Removed element num_children from data1_node. Minor changes in

[yaz-moved-to-github.git] / retrieval / d1_grs.c

diff --git a/retrieval/d1_grs.c b/retrieval/d1_grs.c
index a819d21..30397c9 100644 (file)
--- a/retrieval/d1_grs.c
+++ b/retrieval/d1_grs.c
@@ -1,10 +1,23 @@
 /*
- * Copyright (c) 1995, Index Data.
+ * Copyright (c) 1995-1997, Index Data.
  * See the file LICENSE for details.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: d1_grs.c,v $
- * Revision 1.7  1996-10-11 11:57:23  quinn
+ * Revision 1.11  1997-11-18 09:51:09  adam
+ * Removed element num_children from data1_node. Minor changes in
+ * data1 to Explain.
+ *
+ * Revision 1.10  1997/09/17 12:10:36  adam
+ * YAZ version 1.4.
+ *
+ * Revision 1.9  1997/05/14 06:54:03  adam
+ * C++ support.
+ *
+ * Revision 1.8  1996/12/05 13:17:49  quinn
+ * Fixed GRS-1 null-ref
+ *
+ * Revision 1.7  1996/10/11  11:57:23  quinn
  * Smallish
  *
  * Revision 1.6  1996/07/06  19:58:34  quinn
@@ -38,8 +51,6 @@
 
 #define D1_VARIANTARRAY 20 /* fixed max length on sup'd variant-list. Lazy me */
 
-Z_GenericRecord *data1_nodetogr(data1_node *n, int select, ODR o, int *len);
-
 static Z_ElementMetaData *get_ElementMetaData(ODR o)
 {
     Z_ElementMetaData *r = odr_malloc(o, sizeof(*r));
@@ -86,8 +97,8 @@ static Z_Variant *make_variant(data1_node *n, int num, ODR o)
        assert(p->which == DATA1N_variant);
        t = v->triples[num] = odr_malloc(o, sizeof(*t));
        t->variantSetId = 0;
-       t->class = odr_malloc(o, sizeof(int));
-       *t->class = p->u.variant.type->class->class;
+       t->zclass = odr_malloc(o, sizeof(int));
+       *t->zclass = p->u.variant.type->zclass->zclass;
        t->type = odr_malloc(o, sizeof(int));
        *t->type = p->u.variant.type->type;
 
@@ -139,24 +150,25 @@ static int traverse_triples(data1_node *n, int level, Z_ElementMetaData *m,
     return 0;
 }
 
-static Z_ElementData *nodetoelementdata(data1_node *n, int select, int leaf,
-    ODR o, int *len)
+static Z_ElementData *nodetoelementdata(data1_handle dh, data1_node *n,
+                                       int select, int leaf,
+                                       ODR o, int *len)
 {
     Z_ElementData *res = odr_malloc(o, sizeof(*res));
-    data1_node *p;
-
-    for (p = n->parent; p && p->which != DATA1N_tag; p = p->parent)
-       ;
 
     if (!n)
     {
        res->which = Z_ElementData_elementNotThere;
        res->u.elementNotThere = ODR_NULLVAL;
     }
-    else if (n->which == DATA1N_data && (leaf || n->parent->num_children == 1))
+    else if (n->which == DATA1N_data && (leaf || n->next == NULL))
     {
        char str[512];
        int toget;
+       data1_node *p;
+
+       for (p = n->parent; p && p->which != DATA1N_tag; p = p->parent)
+           ;
 
        switch (n->u.data.what)
        {
@@ -191,14 +203,15 @@ static Z_ElementData *nodetoelementdata(data1_node *n, int select, int leaf,
     else
     {
        res->which = Z_ElementData_subtree;
-       if (!(res->u.subtree = data1_nodetogr(n->parent, select, o, len)))
+       if (!(res->u.subtree = data1_nodetogr (dh, n->parent, select, o, len)))
            return 0;
     }
     return res;
 }
 
-static Z_TaggedElement *nodetotaggedelement(data1_node *n, int select, ODR o,
-    int *len)
+static Z_TaggedElement *nodetotaggedelement(data1_handle dh, data1_node *n,
+                                           int select, ODR o,
+                                           int *len)
 {
     Z_TaggedElement *res = odr_malloc(o, sizeof(*res));
     data1_tag *tag = 0;
@@ -218,8 +231,8 @@ static Z_TaggedElement *nodetotaggedelement(data1_node *n, int select, ODR o,
      */
     else if (n->which == DATA1N_data || n->which == DATA1N_variant)
     {
-       if (!(tag = data1_gettagbyname(n->root->u.root.absyn->tagset,
-           "wellKnown")))
+       if (!(tag = data1_gettagbyname (dh, n->root->u.root.absyn->tagset,
+                                       "wellKnown")))
        {
            logf(LOG_WARN, "Unable to locate tag for 'wellKnown'");
            return 0;
@@ -259,7 +272,7 @@ static Z_TaggedElement *nodetotaggedelement(data1_node *n, int select, ODR o,
     res->appliedVariant = 0;
     res->metaData = 0;
     if (n->which == DATA1N_variant || (data && data->which ==
-       DATA1N_variant && data->parent->num_children == 1))
+       DATA1N_variant && data->next == NULL))
     {
        int nvars = 0;
 
@@ -281,25 +294,31 @@ static Z_TaggedElement *nodetotaggedelement(data1_node *n, int select, ODR o,
        res->content->which = Z_ElementData_noDataRequested;
        res->content->u.noDataRequested = ODR_NULLVAL;
     }
-    else if (!(res->content = nodetoelementdata(data, select, leaf, o, len)))
+    else if (!(res->content = nodetoelementdata (dh, data, select, leaf,
+                                                o, len)))
        return 0;
     *len += 10;
     return res;
 }
 
-Z_GenericRecord *data1_nodetogr(data1_node *n, int select, ODR o, int *len)
+Z_GenericRecord *data1_nodetogr(data1_handle dh, data1_node *n,
+                               int select, ODR o, int *len)
 {
     Z_GenericRecord *res = odr_malloc(o, sizeof(*res));
     data1_node *c;
+    int num_children = 0;
+    
+    for (c = n->child; c; c = c->next)
+       num_children++;
 
-    res->elements = odr_malloc(o, sizeof(Z_TaggedElement *) * n->num_children);
+    res->elements = odr_malloc(o, sizeof(Z_TaggedElement *) * num_children);
     res->num_elements = 0;
     for (c = n->child; c; c = c->next)
     {
        if (c->which == DATA1N_tag && select && !c->u.tag.node_selected)
            continue;
        if (!(res->elements[res->num_elements++] =
-           nodetotaggedelement(c, select, o, len)))
+             nodetotaggedelement (dh, c, select, o, len)))
            return 0;
     }
     return res;