def process_oeis_entry(oeis_entry):
(oeis_id, main_content, bfile_content) = oeis_entry
parsed_entry = parse_oeis_entry(oeis_id, main_content, bfile_content)
result = (
parsed_entry.oeis_id,
parsed_entry.identification,
",".join(str(value) for value in parsed_entry.values),
parsed_entry.name,
parsed_entry.comments,
parsed_entry.detailed_references,
parsed_entry.links,
parsed_entry.formulas,
parsed_entry.examples,
parsed_entry.maple_programs,
parsed_entry.mathematica_programs,
parsed_entry.other_programs,
parsed_entry.cross_references,
",".join(str(keyword) for keyword in parsed_entry.keywords),
parsed_entry.offset_a,
parsed_entry.offset_b,
parsed_entry.author,
parsed_entry.extensions_and_errors
)
return result
def process_oeis_entry(work):
(oeis_id, main_content, bfile_content, terms) = work
parsed_entry = parse_oeis_entry(oeis_id, main_content, bfile_content)
if parsed_entry.offset_a is None:
logger.warning("A{:06d} Skipping sequence without declared first index.".format(parsed_entry.oeis_id))
solution = None
else:
max_value = max(abs(v) for v in parsed_entry.values)
max_value_digit_count = len(str(max_value))
if max_value_digit_count >= 10000:
logger.info("[A{:06d}] Skipping sequence with very large values ({} digits).".format(parsed_entry.oeis_id, max_value_digit_count))
solution = None
else:
first_index = parsed_entry.offset_a
# Turn the sequence data in a lookup dictionary.
lookup = OrderedDict((first_index + i, value) for (i, value) in enumerate(parsed_entry.values))
solution = solve_lineair_equation(parsed_entry.oeis_id, lookup, terms)
return (parsed_entry, solution)