Index: abstract.c
===================================================================
--- abstract.c	(revision 687)
+++ abstract.c	(revision 688)
@@ -53,3 +53,25 @@
 	return net;
 }
 
+
+static void dump_attr(const csch_attribs_t *attr, FILE *f, const char *prefix1, const char *prefix2)
+{
+	htsp_entry_t *e;
+	fprintf(f, "%s%sAttributes:\n", prefix1, prefix2);
+	for(e = htsp_first(attr); e != NULL; e = htsp_next(attr, e)) {
+		const csch_attrib_t *a = e->value;
+		fprintf(f, "%s%s%s=%s\n", prefix1, prefix2, a->key, a->val);
+	}
+}
+
+void csch_abstract_dump(const csch_abstract_t *abs, FILE *f, const char *prefix)
+{
+	htsp_entry_t *e;
+
+	fprintf(f, "%sNets:\n", prefix);
+	for(e = htsp_first(&abs->nets); e != NULL; e = htsp_next(&abs->nets, e)) {
+		csch_anet_t *net = e->value;
+		fprintf(f, "%s '%s'\n", prefix, net->netname);
+		dump_attr(&net->hdr.attr, f, prefix, " ");
+	}
+}