Observe only main index entry for keyword

src/tei2imxml.py

@@ -1272,7 +1272,7 @@ def handle_refs_default(ref):
     ############
     # Indexing #
     ############
-    index_entries = xml_tree.xpath("//t:body//t:index", namespaces=NS_MAP)
+    index_entries = xml_tree.xpath("//t:body//t:index[not(ancestor::t:index)]", namespaces=NS_MAP)
     for entry in index_entries:
         index_type = entry.get("indexName")
         tagname = "EOAindex"
@@ -1281,13 +1281,19 @@ def handle_refs_default(ref):
         entry.tag = tagname
         entry_tail = entry.tail
         entry_content = entry.find("t:term", namespaces=NS_MAP)
-        try:
-            sortkey = entry_content.get("sortKey")
-        except AttributeError:
-            sortkey = ""
         entry_text = ""
-        if len(sortkey) > 0:
+
+        sortkey = entry_content.get("sortKey")
+        # try:
+        #     sortkey = entry_content.get("sortKey")
+        # except AttributeError:
+        #     sortkey = ""
+        if sortkey is None:
+            logging.info("No sortkey found")
+        else:
             entry_text = f"{sortkey}@"
+        # if len(sortkey) > 0:
+        #     entry_text = f"{sortkey}@"
         # markup ignored for now
         remainder = libeoaconvert.gettext(entry_content)
         entry_text += remainder