1 #define JISX0201_R_ENCODE(c, assi)			\

     2 	if ((c) < 0x80 && (c) != 0x5c && (c) != 0x7e)	\

     3 		(assi) = (c);				\

     4 	else if ((c) == 0x00a5) (assi) = 0x5c;		\

     5 	else if ((c) == 0x203e) (assi) = 0x7e;

     6 #define JISX0201_K_ENCODE(c, assi)			\

     7 	if ((c) >= 0xff61 && (c) <= 0xff9f)		\

     8 		(assi) = (c) - 0xfec0;

     9 #define JISX0201_ENCODE(c, assi)			\

    10 	JISX0201_R_ENCODE(c, assi)			\

    11 	else JISX0201_K_ENCODE(c, assi)

    12 

    13 #define JISX0201_R_DECODE(c, assi)			\

    14 	if ((c) < 0x5c) (assi) = (c);			\

    15 	else if ((c) == 0x5c) (assi) = 0x00a5;		\

    16 	else if ((c) < 0x7e) (assi) = (c);		\

    17 	else if ((c) == 0x7e) (assi) = 0x203e;		\

    18 	else if ((c) == 0x7f) (assi) = 0x7f;

    19 #define JISX0201_K_DECODE(c, assi)			\

    20 	if ((c) >= 0xa1 && (c) <= 0xdf)			\

    21 	(assi) = 0xfec0 + (c);

    22 #define JISX0201_DECODE(c, assi)			\

    23 	JISX0201_R_DECODE(c, assi)			\

    24 	else JISX0201_K_DECODE(c, assi)