Added check for no transform steps

diff --git a/src/normalize_record.c b/src/normalize_record.c
index c33cd2e..322566e 100644 (file)
--- a/src/normalize_record.c
+++ b/src/normalize_record.c
@@ -124,30 +124,32 @@ int normalize_record_transform(normalize_record_t nt, xmlDoc **doc,
     const char **parms)
 {
     struct normalize_step *m;
-    for (m = nt->steps; m; m = m->next)
-    {
-        xmlNodePtr root = 0;
-        xmlDoc *new;
-        if (m->stylesheet)
-        {
-            new = xsltApplyStylesheet(m->stylesheet, *doc, parms);
-        }
-        else if (m->marcmap)
-        {
-            new = marcmap_apply(m->marcmap, *doc);
-        }
-        
-        root = xmlDocGetRootElement(new);
-        
-        if (!new || !root || !root->children)
-        {
-            if (new)
-                xmlFreeDoc(new);
-            xmlFreeDoc(*doc);
-            return -1;
-        }
-        xmlFreeDoc(*doc);
-        *doc = new;
+    if (nt) {
+       for (m = nt->steps; m; m = m->next)
+       {
+           xmlNodePtr root = 0;
+           xmlDoc *new;
+           if (m->stylesheet)
+           {
+               new = xsltApplyStylesheet(m->stylesheet, *doc, parms);
+           }
+           else if (m->marcmap)
+           {
+               new = marcmap_apply(m->marcmap, *doc);
+           }
+           
+           root = xmlDocGetRootElement(new);
+           
+           if (!new || !root || !root->children)
+           {
+               if (new)
+                   xmlFreeDoc(new);
+               xmlFreeDoc(*doc);
+               return -1;
+           }
+           xmlFreeDoc(*doc);
+           *doc = new;
+       }
     }
     return 0;
 }