Fix another bug

heideltime_util.py

@@ -42,13 +42,16 @@ def mentioned_dates_by_sentence(filename, pub_date):
         if not sentence.strip():
             continue
         dates_for_this_sentence = []
-        root = ET.fromstring('<root>' + sentence + '</root>')
-        for child in root:
-            if child.tag == 'TIMEX3' and child.attrib['type'] in ['DATE', 'TIME']:
-                match = date_format_regex.match(child.attrib['value'])
-                if match is not None:
-                    dates_for_this_sentence.append(match[0])
-        dates_by_sentences.append(dates_for_this_sentence)
+        try:
+            root = ET.fromstring('<root>' + sentence + '</root>')
+            for child in root:
+                if child.tag == 'TIMEX3' and child.attrib['type'] in ['DATE', 'TIME']:
+                    match = date_format_regex.match(child.attrib['value'])
+                    if match is not None:
+                        dates_for_this_sentence.append(match[0])
+            dates_by_sentences.append(dates_for_this_sentence)
+        except ET.ParseError:
+            continue
 
     # change directory back
     os.chdir(working_dir)