craftbeerpi4-pione/venv/lib/python3.8/site-packages/asn1crypto/_teletex_codec.py

331 lines
4.9 KiB
Python

# coding: utf-8
"""
Implementation of the teletex T.61 codec. Exports the following items:
- register()
"""
from __future__ import unicode_literals, division, absolute_import, print_function
import codecs
class TeletexCodec(codecs.Codec):
def encode(self, input_, errors='strict'):
return codecs.charmap_encode(input_, errors, ENCODING_TABLE)
def decode(self, input_, errors='strict'):
return codecs.charmap_decode(input_, errors, DECODING_TABLE)
class TeletexIncrementalEncoder(codecs.IncrementalEncoder):
def encode(self, input_, final=False):
return codecs.charmap_encode(input_, self.errors, ENCODING_TABLE)[0]
class TeletexIncrementalDecoder(codecs.IncrementalDecoder):
def decode(self, input_, final=False):
return codecs.charmap_decode(input_, self.errors, DECODING_TABLE)[0]
class TeletexStreamWriter(TeletexCodec, codecs.StreamWriter):
pass
class TeletexStreamReader(TeletexCodec, codecs.StreamReader):
pass
def teletex_search_function(name):
"""
Search function for teletex codec that is passed to codecs.register()
"""
if name != 'teletex':
return None
return codecs.CodecInfo(
name='teletex',
encode=TeletexCodec().encode,
decode=TeletexCodec().decode,
incrementalencoder=TeletexIncrementalEncoder,
incrementaldecoder=TeletexIncrementalDecoder,
streamreader=TeletexStreamReader,
streamwriter=TeletexStreamWriter,
)
def register():
"""
Registers the teletex codec
"""
codecs.register(teletex_search_function)
# http://en.wikipedia.org/wiki/ITU_T.61
DECODING_TABLE = (
'\u0000'
'\u0001'
'\u0002'
'\u0003'
'\u0004'
'\u0005'
'\u0006'
'\u0007'
'\u0008'
'\u0009'
'\u000A'
'\u000B'
'\u000C'
'\u000D'
'\u000E'
'\u000F'
'\u0010'
'\u0011'
'\u0012'
'\u0013'
'\u0014'
'\u0015'
'\u0016'
'\u0017'
'\u0018'
'\u0019'
'\u001A'
'\u001B'
'\u001C'
'\u001D'
'\u001E'
'\u001F'
'\u0020'
'\u0021'
'\u0022'
'\ufffe'
'\ufffe'
'\u0025'
'\u0026'
'\u0027'
'\u0028'
'\u0029'
'\u002A'
'\u002B'
'\u002C'
'\u002D'
'\u002E'
'\u002F'
'\u0030'
'\u0031'
'\u0032'
'\u0033'
'\u0034'
'\u0035'
'\u0036'
'\u0037'
'\u0038'
'\u0039'
'\u003A'
'\u003B'
'\u003C'
'\u003D'
'\u003E'
'\u003F'
'\u0040'
'\u0041'
'\u0042'
'\u0043'
'\u0044'
'\u0045'
'\u0046'
'\u0047'
'\u0048'
'\u0049'
'\u004A'
'\u004B'
'\u004C'
'\u004D'
'\u004E'
'\u004F'
'\u0050'
'\u0051'
'\u0052'
'\u0053'
'\u0054'
'\u0055'
'\u0056'
'\u0057'
'\u0058'
'\u0059'
'\u005A'
'\u005B'
'\ufffe'
'\u005D'
'\ufffe'
'\u005F'
'\ufffe'
'\u0061'
'\u0062'
'\u0063'
'\u0064'
'\u0065'
'\u0066'
'\u0067'
'\u0068'
'\u0069'
'\u006A'
'\u006B'
'\u006C'
'\u006D'
'\u006E'
'\u006F'
'\u0070'
'\u0071'
'\u0072'
'\u0073'
'\u0074'
'\u0075'
'\u0076'
'\u0077'
'\u0078'
'\u0079'
'\u007A'
'\ufffe'
'\u007C'
'\ufffe'
'\ufffe'
'\u007F'
'\u0080'
'\u0081'
'\u0082'
'\u0083'
'\u0084'
'\u0085'
'\u0086'
'\u0087'
'\u0088'
'\u0089'
'\u008A'
'\u008B'
'\u008C'
'\u008D'
'\u008E'
'\u008F'
'\u0090'
'\u0091'
'\u0092'
'\u0093'
'\u0094'
'\u0095'
'\u0096'
'\u0097'
'\u0098'
'\u0099'
'\u009A'
'\u009B'
'\u009C'
'\u009D'
'\u009E'
'\u009F'
'\u00A0'
'\u00A1'
'\u00A2'
'\u00A3'
'\u0024'
'\u00A5'
'\u0023'
'\u00A7'
'\u00A4'
'\ufffe'
'\ufffe'
'\u00AB'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\u00B0'
'\u00B1'
'\u00B2'
'\u00B3'
'\u00D7'
'\u00B5'
'\u00B6'
'\u00B7'
'\u00F7'
'\ufffe'
'\ufffe'
'\u00BB'
'\u00BC'
'\u00BD'
'\u00BE'
'\u00BF'
'\ufffe'
'\u0300'
'\u0301'
'\u0302'
'\u0303'
'\u0304'
'\u0306'
'\u0307'
'\u0308'
'\ufffe'
'\u030A'
'\u0327'
'\u0332'
'\u030B'
'\u0328'
'\u030C'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\ufffe'
'\u2126'
'\u00C6'
'\u00D0'
'\u00AA'
'\u0126'
'\ufffe'
'\u0132'
'\u013F'
'\u0141'
'\u00D8'
'\u0152'
'\u00BA'
'\u00DE'
'\u0166'
'\u014A'
'\u0149'
'\u0138'
'\u00E6'
'\u0111'
'\u00F0'
'\u0127'
'\u0131'
'\u0133'
'\u0140'
'\u0142'
'\u00F8'
'\u0153'
'\u00DF'
'\u00FE'
'\u0167'
'\u014B'
'\ufffe'
)
ENCODING_TABLE = codecs.charmap_build(DECODING_TABLE)