iso2022.h

操作系统SunOS 4.1.3版本的源码

/*
 * ISO2022 generic escape sequence handler for graphical characters
 */

/* static  char *sccsid = "@(#)iso2022.h 1.1 92/07/30 SMI"; */

/*
 * single control characters
 */
#define SI	0x0F
#define SO	0x0E

#define ESC	0x1B

#define LS0	0x0F		
#define LS1	0x0E
#define LS1R	0x7E	/* need ESC */
#define LS2	0x6E	/* need ESC */
#define LS2R	0x7D	/* need ESC */
#define LS3	0x6F	/* need ESC */
#define LS3R	0x7C	/* need ESC */
#define SS2_7B	0x4E	/* need ESC */
#define SS2_8B	0x8E
#define SS3_7B	0x4F	/* need ESC */
#define SS3_8B	0x8F

#define C_C0	0
#define C_C1	1

#define G0	0
#define G1	1
#define G2	2
#define G3	3

#define CONT	0
#define SING	1
#define MULT	2
/*
 * code info
 */
typedef struct {
	char g0_len; /* 1 or 2 */
	char g1_len; /* 1 or 2 */
	char g2_len; /* 1 or 2 */
	char g3_len; /* 1 or 2 */
	char bit_env;/* 7 or 8 */

} isowidth_t;