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)
66