Encoding problem

[ehenneken]

During the execution of python3 run.py RESOLVE -p /proj/ads/references/sources/PNAS -e *.xml the following exception was thrown:

Traceback (most recent call last):
  File "/app/adsrefpipe/refparsers/unicode.py", line 222, in __sub_hexnumasc_entity
    if self.unicode[entno]:
IndexError: list index out of range

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "run.py", line 323, in <module>
    process_files(source_filenames)
  File "run.py", line 107, in process_files
    parsed_references = toREFs.process_and_dispatch()
  File "/app/adsrefpipe/refparsers/JATSxml.py", line 348, in process_and_dispatch
    jats_reference = JATSreference(reference)
  File "/app/adsrefpipe/refparsers/reference.py", line 390, in __init__
    Reference.__init__(self, reference_str, unicode)
  File "/app/adsrefpipe/refparsers/reference.py", line 118, in __init__
    self.parse()
  File "/app/adsrefpipe/refparsers/JATSxml.py", line 37, in parse
    refstr = self.dexml(self.reference_str.toxml())
  File "/app/adsrefpipe/refparsers/reference.py", line 721, in dexml
    return self.unicode.ent2asc(self.strip_tags(refstr)).strip()
  File "/app/adsrefpipe/refparsers/unicode.py", line 171, in ent2asc
    result = self.re_hexnumentity.sub(self.__sub_hexnumasc_entity, result)
  File "/app/adsrefpipe/refparsers/unicode.py", line 227, in __sub_hexnumasc_entity
    raise UnicodeHandlerError('Unknown hexadecimal entity: %s' % match.group(0))
adsrefpipe.refparsers.unicode.UnicodeHandlerError: Unknown hexadecimal entity: &#x1d463;

Apparently this happened during the process of PNAS volume 112, possibly issue 43.