#define JISX0201_R_ENCODE(c, assi) \
if ((c) < 0x80 && (c) != 0x5c && (c) != 0x7e) \
(assi) = (c); \
else if ((c) == 0x00a5) (assi) = 0x5c; \
else if ((c) == 0x203e) (assi) = 0x7e;
#define JISX0201_K_ENCODE(c, assi) \
if ((c) >= 0xff61 && (c) <= 0xff9f) \
(assi) = (c) - 0xfec0;
#define JISX0201_ENCODE(c, assi) \
JISX0201_R_ENCODE(c, assi) \
else JISX0201_K_ENCODE(c, assi)
#define JISX0201_R_DECODE(c, assi) \
if ((c) < 0x5c) (assi) = (c); \
else if ((c) == 0x5c) (assi) = 0x00a5; \
else if ((c) < 0x7e) (assi) = (c); \
else if ((c) == 0x7e) (assi) = 0x203e; \
else if ((c) == 0x7f) (assi) = 0x7f;
#define JISX0201_K_DECODE(c, assi) \
if ((c) >= 0xa1 && (c) <= 0xdf) \
(assi) = 0xfec0 + (c);
#define JISX0201_DECODE(c, assi) \
JISX0201_R_DECODE(c, assi) \
else JISX0201_K_DECODE(c, assi)