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from __future__ import print_function
import numbers
import crcmod.predefined
table_data = [
[ "Name", 'name', 32, ],
[ "Polynomial", 'poly', 22, ],
[ "Reversed?", 'reverse', 10, ],
[ "Init-value", 'init', 20, ],
[ "XOR-out", 'xor_out', 20, ],
[ "Check", 'check', 20, ],
]
ccitt_defns = [
'kermit',
'crc-ccitt-false',
'crc-aug-ccitt',
]
column_dashes = ' '.join(('=' * table_data_item[2] for table_data_item in table_data))
print(column_dashes)
print(' '.join(("%-*s" % (table_data_item[2], table_data_item[0]) for table_data_item in table_data)).strip())
print(column_dashes)
for defn in crcmod.predefined._crc_definitions:
poly_width = crcmod.crcmod._verifyPoly(defn['poly'])
hex_width = (poly_width + 3) // 4
defn_data_list = []
for (header_text, key, width) in table_data:
if isinstance(defn[key], bool):
item = "%s" % (defn[key],)
elif isinstance(defn[key], numbers.Integral):
item = "0x%0*X" % (hex_width, defn[key])
else:
item = "``%s``" % (defn[key])
if defn['name'] in ccitt_defns:
item = ' '.join([item, '[#ccitt]_'])
item = "%-*s" % (width, item)
defn_data_list.append(item)
print(' '.join(defn_data_list).strip())
print(column_dashes)