AppPkg/Applications/Python/Python-2.7.10/Modules/cjkcodecs/_codecs_tw.c

   1 /*
   2  * _codecs_tw.c: Codecs collection for Taiwan's encodings
   3  *
   4  * Written by Hye-Shik Chang <perky@FreeBSD.org>
   5  */
   6
   7 #include "cjkcodecs.h"
   8 #include "mappings_tw.h"
   9
  10 /*
  11  * BIG5 codec
  12  */
  13
  14 ENCODER(big5)
  15 {
  16     while (inleft > 0) {
  17         Py_UNICODE c = **inbuf;
  18         DBCHAR code;
  19
  20         if (c < 0x80) {
  21             REQUIRE_OUTBUF(1)
  22             **outbuf = (unsigned char)c;
  23             NEXT(1, 1)
  24             continue;
  25         }
  26         UCS4INVALID(c)
  27
  28         REQUIRE_OUTBUF(2)
  29
  30         TRYMAP_ENC(big5, code, c);
  31         else return 1;
  32
  33         OUT1(code >> 8)
  34         OUT2(code & 0xFF)
  35         NEXT(1, 2)
  36     }
  37
  38     return 0;
  39 }
  40
  41 DECODER(big5)
  42 {
  43     while (inleft > 0) {
  44         unsigned char c = IN1;
  45
  46         REQUIRE_OUTBUF(1)
  47
  48         if (c < 0x80) {
  49             OUT1(c)
  50             NEXT(1, 1)
  51             continue;
  52         }
  53
  54         REQUIRE_INBUF(2)
  55         TRYMAP_DEC(big5, **outbuf, c, IN2) {
  56             NEXT(2, 1)
  57         }
  58         else return 2;
  59     }
  60
  61     return 0;
  62 }
  63
  64
  65 /*
  66  * CP950 codec
  67  */
  68
  69 ENCODER(cp950)
  70 {
  71     while (inleft > 0) {
  72         Py_UNICODE c = IN1;
  73         DBCHAR code;
  74
  75         if (c < 0x80) {
  76             WRITE1((unsigned char)c)
  77             NEXT(1, 1)
  78             continue;
  79         }
  80         UCS4INVALID(c)
  81
  82         REQUIRE_OUTBUF(2)
  83         TRYMAP_ENC(cp950ext, code, c);
  84         else TRYMAP_ENC(big5, code, c);
  85         else return 1;
  86
  87         OUT1(code >> 8)
  88         OUT2(code & 0xFF)
  89         NEXT(1, 2)
  90     }
  91
  92     return 0;
  93 }
  94
  95 DECODER(cp950)
  96 {
  97     while (inleft > 0) {
  98         unsigned char c = IN1;
  99
 100         REQUIRE_OUTBUF(1)
 101
 102         if (c < 0x80) {
 103             OUT1(c)
 104             NEXT(1, 1)
 105             continue;
 106         }
 107
 108         REQUIRE_INBUF(2)
 109
 110         TRYMAP_DEC(cp950ext, **outbuf, c, IN2);
 111         else TRYMAP_DEC(big5, **outbuf, c, IN2);
 112         else return 2;
 113
 114         NEXT(2, 1)
 115     }
 116
 117     return 0;
 118 }
 119
 120
 121
 122 BEGIN_MAPPINGS_LIST
 123   MAPPING_ENCDEC(big5)
 124   MAPPING_ENCDEC(cp950ext)
 125 END_MAPPINGS_LIST
 126
 127 BEGIN_CODECS_LIST
 128   CODEC_STATELESS(big5)
 129   CODEC_STATELESS(cp950)
 130 END_CODECS_LIST
 131
 132 I_AM_A_MODULE_FOR(tw)