projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3257aa99 DM |
1 | #!/usr/bin/env python\r |
| 2 | """ Python Character Mapping Codec for ROT13.\r | |
| 3 | \r | |
| 4 | See http://ucsub.colorado.edu/~kominek/rot13/ for details.\r | |
| 5 | \r | |
| 6 | Written by Marc-Andre Lemburg (mal@lemburg.com).\r | |
| 7 | \r | |
| 8 | """#"\r | |
| 9 | \r | |
| 10 | import codecs\r | |
| 11 | \r | |
| 12 | ### Codec APIs\r | |
| 13 | \r | |
| 14 | class Codec(codecs.Codec):\r | |
| 15 | \r | |
| 16 | def encode(self,input,errors='strict'):\r | |
| 17 | return codecs.charmap_encode(input,errors,encoding_map)\r | |
| 18 | \r | |
| 19 | def decode(self,input,errors='strict'):\r | |
| 20 | return codecs.charmap_decode(input,errors,decoding_map)\r | |
| 21 | \r | |
| 22 | class IncrementalEncoder(codecs.IncrementalEncoder):\r | |
| 23 | def encode(self, input, final=False):\r | |
| 24 | return codecs.charmap_encode(input,self.errors,encoding_map)[0]\r | |
| 25 | \r | |
| 26 | class IncrementalDecoder(codecs.IncrementalDecoder):\r | |
| 27 | def decode(self, input, final=False):\r | |
| 28 | return codecs.charmap_decode(input,self.errors,decoding_map)[0]\r | |
| 29 | \r | |
| 30 | class StreamWriter(Codec,codecs.StreamWriter):\r | |
| 31 | pass\r | |
| 32 | \r | |
| 33 | class StreamReader(Codec,codecs.StreamReader):\r | |
| 34 | pass\r | |
| 35 | \r | |
| 36 | ### encodings module API\r | |
| 37 | \r | |
| 38 | def getregentry():\r | |
| 39 | return codecs.CodecInfo(\r | |
| 40 | name='rot-13',\r | |
| 41 | encode=Codec().encode,\r | |
| 42 | decode=Codec().decode,\r | |
| 43 | incrementalencoder=IncrementalEncoder,\r | |
| 44 | incrementaldecoder=IncrementalDecoder,\r | |
| 45 | streamwriter=StreamWriter,\r | |
| 46 | streamreader=StreamReader,\r | |
| 47 | )\r | |
| 48 | \r | |
| 49 | ### Decoding Map\r | |
| 50 | \r | |
| 51 | decoding_map = codecs.make_identity_dict(range(256))\r | |
| 52 | decoding_map.update({\r | |
| 53 | 0x0041: 0x004e,\r | |
| 54 | 0x0042: 0x004f,\r | |
| 55 | 0x0043: 0x0050,\r | |
| 56 | 0x0044: 0x0051,\r | |
| 57 | 0x0045: 0x0052,\r | |
| 58 | 0x0046: 0x0053,\r | |
| 59 | 0x0047: 0x0054,\r | |
| 60 | 0x0048: 0x0055,\r | |
| 61 | 0x0049: 0x0056,\r | |
| 62 | 0x004a: 0x0057,\r | |
| 63 | 0x004b: 0x0058,\r | |
| 64 | 0x004c: 0x0059,\r | |
| 65 | 0x004d: 0x005a,\r | |
| 66 | 0x004e: 0x0041,\r | |
| 67 | 0x004f: 0x0042,\r | |
| 68 | 0x0050: 0x0043,\r | |
| 69 | 0x0051: 0x0044,\r | |
| 70 | 0x0052: 0x0045,\r | |
| 71 | 0x0053: 0x0046,\r | |
| 72 | 0x0054: 0x0047,\r | |
| 73 | 0x0055: 0x0048,\r | |
| 74 | 0x0056: 0x0049,\r | |
| 75 | 0x0057: 0x004a,\r | |
| 76 | 0x0058: 0x004b,\r | |
| 77 | 0x0059: 0x004c,\r | |
| 78 | 0x005a: 0x004d,\r | |
| 79 | 0x0061: 0x006e,\r | |
| 80 | 0x0062: 0x006f,\r | |
| 81 | 0x0063: 0x0070,\r | |
| 82 | 0x0064: 0x0071,\r | |
| 83 | 0x0065: 0x0072,\r | |
| 84 | 0x0066: 0x0073,\r | |
| 85 | 0x0067: 0x0074,\r | |
| 86 | 0x0068: 0x0075,\r | |
| 87 | 0x0069: 0x0076,\r | |
| 88 | 0x006a: 0x0077,\r | |
| 89 | 0x006b: 0x0078,\r | |
| 90 | 0x006c: 0x0079,\r | |
| 91 | 0x006d: 0x007a,\r | |
| 92 | 0x006e: 0x0061,\r | |
| 93 | 0x006f: 0x0062,\r | |
| 94 | 0x0070: 0x0063,\r | |
| 95 | 0x0071: 0x0064,\r | |
| 96 | 0x0072: 0x0065,\r | |
| 97 | 0x0073: 0x0066,\r | |
| 98 | 0x0074: 0x0067,\r | |
| 99 | 0x0075: 0x0068,\r | |
| 100 | 0x0076: 0x0069,\r | |
| 101 | 0x0077: 0x006a,\r | |
| 102 | 0x0078: 0x006b,\r | |
| 103 | 0x0079: 0x006c,\r | |
| 104 | 0x007a: 0x006d,\r | |
| 105 | })\r | |
| 106 | \r | |
| 107 | ### Encoding Map\r | |
| 108 | \r | |
| 109 | encoding_map = codecs.make_encoding_map(decoding_map)\r | |
| 110 | \r | |
| 111 | ### Filter API\r | |
| 112 | \r | |
| 113 | def rot13(infile, outfile):\r | |
| 114 | outfile.write(infile.read().encode('rot-13'))\r | |
| 115 | \r | |
| 116 | if __name__ == '__main__':\r | |
| 117 | import sys\r | |
| 118 | rot13(sys.stdin, sys.stdout)\r |