code: def parse(self, filename, verbose=0):
          
          run_completed, start_datetime, end_datetime = False, None, None
          filename = os.path.abspath(filename)
          report = EventReport(filename)
  
          w = WildCard("*Error|*Warning|*Comment|*Bug|*ERROR|*WARNING|*COMMENT|*BUG")
          import warnings
          warnings.simplefilter('ignore', yaml.error.UnsafeLoaderWarning)
          with YamlTokenizer(filename) as tokens:
              for doc in tokens:
                  if w.match(doc.tag):
                      #print("got doc.tag", doc.tag,"--")
                      try:
                          #print(doc.text)
                          event = yaml.load(doc.text)   # Can't use ruamel safe_load!
                          #yaml.load(doc.text, Loader=ruamel.yaml.Loader)
                          #print(event.yaml_tag, type(event))
                      except:
                          #raise
                          # Wrong YAML doc. Check tha doc tag and instantiate the proper event.
                          message = "Malformatted YAML document at line: %d\n" % doc.lineno
                          message += doc.text
  
                          # This call is very expensive when we have many exceptions due to malformatted YAML docs.
                          if verbose:
                              message += "Traceback:\n %s" % straceback()
  
                          if "error" in doc.tag.lower():
                              print("It seems an error. doc.tag:", doc.tag)
                              event = AbinitYamlError(message=message, src_file=__file__, src_line=0)
                          else:
                              event = AbinitYamlWarning(message=message, src_file=__file__, src_line=0)
  
                      event.lineno = doc.lineno
                      report.append(event)
  
                  # Check whether the calculation completed.
                  if doc.tag == "!FinalSummary":
                      #print(doc)
                      run_completed = True
                      d = doc.as_dict()
                      #print(d)
                      start_datetime, end_datetime = d["start_datetime"], d["end_datetime"]
  
          report.set_run_completed(run_completed, start_datetime, end_datetime)
          return report
docs: Parse the given file. Return :class:`EventReport`.