1  #define JISX0201_R_ENCODE(c, assi)                      \
       2      if ((c) < 0x80 && (c) != 0x5c && (c) != 0x7e) {     \
       3          (assi) = (c);                                   \
       4      }                                                   \
       5      else if ((c) == 0x00a5) {                           \
       6          (assi) = 0x5c;                                  \
       7      }                                                   \
       8      else if ((c) == 0x203e) {                           \
       9          (assi) = 0x7e;                                  \
      10      }
      11  
      12  #define JISX0201_K_ENCODE(c, assi)                      \
      13      if ((c) >= 0xff61 && (c) <= 0xff9f) {               \
      14          (assi) = (c) - 0xfec0;                          \
      15      }
      16  
      17  #define JISX0201_ENCODE(c, assi)                        \
      18      JISX0201_R_ENCODE(c, assi)                          \
      19      else JISX0201_K_ENCODE(c, assi)
      20  
      21  #define JISX0201_R_DECODE_CHAR(c, assi)                 \
      22      if ((c) < 0x5c) {                                   \
      23          (assi) = (c);                                   \
      24      }                                                   \
      25      else if ((c) == 0x5c) {                             \
      26          (assi) = 0x00a5;                                \
      27      }                                                   \
      28      else if ((c) < 0x7e) {                              \
      29          (assi) = (c);                                   \
      30      }                                                   \
      31      else if ((c) == 0x7e) {                             \
      32          (assi) = 0x203e;                                \
      33      }                                                   \
      34      else if ((c) == 0x7f) {                             \
      35          (assi) = 0x7f;                                  \
      36      }
      37  
      38  #define JISX0201_R_DECODE(c, writer)                    \
      39      if ((c) < 0x5c) {                                   \
      40          OUTCHAR(c);                                     \
      41      }                                                   \
      42      else if ((c) == 0x5c) {                             \
      43          OUTCHAR(0x00a5);                                \
      44      }                                                   \
      45      else if ((c) < 0x7e) {                              \
      46          OUTCHAR(c);                                     \
      47      }                                                   \
      48      else if ((c) == 0x7e) {                             \
      49          OUTCHAR(0x203e);                                \
      50      }                                                   \
      51      else if ((c) == 0x7f) {                             \
      52          OUTCHAR(0x7f);                                  \
      53      }
      54  
      55  #define JISX0201_K_DECODE(c, writer)                    \
      56      if ((c) >= 0xa1 && (c) <= 0xdf) {                   \
      57          OUTCHAR(0xfec0 + (c));                          \
      58      }
      59  #define JISX0201_K_DECODE_CHAR(c, assi)                 \
      60      if ((c) >= 0xa1 && (c) <= 0xdf) {                   \
      61          (assi) = 0xfec0 + (c);                          \
      62      }
      63  #define JISX0201_DECODE(c, writer)                      \
      64      JISX0201_R_DECODE(c, writer)                        \
      65      else JISX0201_K_DECODE(c, writer)