usr/src/usr.bin/window/tt.h

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *	@(#)tt.h	3.23 (Berkeley) %G%
 */

/*
 * Interface structure for the terminal drivers.
 */
struct tt {
		/* startup and cleanup */
	int (*tt_start)();
	int (*tt_end)();

		/* terminal functions */
	int (*tt_move)();
	int (*tt_insline)();
	int (*tt_delline)();
	int (*tt_inschar)();
	int (*tt_insspace)();
	int (*tt_delchar)();
	int (*tt_write)();		/* write a whole block */
	int (*tt_putc)();		/* write one character */
	int (*tt_clreol)();
	int (*tt_clreos)();
	int (*tt_clear)();
	int (*tt_scroll_down)();
	int (*tt_scroll_up)();
	int (*tt_setscroll)();		/* set scrolling region */
	int (*tt_setmodes)();		/* set display modes */
	int (*tt_set_token)();		/* define a token */
	int (*tt_put_token)();		/* refer to a defined token */

		/* internal variables */
	char tt_modes;			/* the current display modes */
	char tt_nmodes;			/* the new modes for next write */
	char tt_insert;			/* currently in insert mode */
	int tt_row;			/* cursor row */
	int tt_col;			/* cursor column */
	int tt_scroll_top;		/* top of scrolling region */
	int tt_scroll_bot;		/* bottom of scrolling region */

		/* terminal info */
	int tt_nrow;			/* number of display rows */
	int tt_ncol;			/* number of display columns */
	char tt_availmodes;		/* the display modes supported */
	char tt_wrap;			/* has auto wrap around */
	char tt_retain;			/* can retain below (db flag) */
	int tt_ntoken;			/* number of compression tokens */
	int tt_token_min;		/* minimun token size */
	int tt_token_max;		/* maximum token size */
	int tt_set_token_cost;		/* cost in addition to string */
	int tt_put_token_cost;		/* constant cost */

		/* the frame characters */
	short *tt_frame;
};
struct tt tt;

/*
 * List of terminal drivers.
 */
struct tt_tab {
	char *tt_name;
	int tt_len;
	int (*tt_func)();
};
extern struct tt_tab tt_tab[];

/*
 * Clean interface to termcap routines.
 * Too may t's.
 */
char tt_strings[1024];		/* string buffer */
char *tt_strp;			/* pointer for it */

struct tt_str {
	char *ts_str;
	int ts_n;
};

struct tt_str *tttgetstr();
struct tt_str *ttxgetstr();	/* tgetstr() and expand delays */

int tttputc();
#define tttputs(s, n)	tputs((s)->ts_str, (n), tttputc)
#define ttxputs(s)	ttwrite((s)->ts_str, (s)->ts_n)

/*
 * Buffered output without stdio.
 * These variables have different meanings from the ww_ob* variabels.
 * But I'm too lazy to think up different names.
 */
char tt_ob[512];
char *tt_obp;
char *tt_obe;
#define ttputc(c)	(tt_obp < tt_obe ? (*tt_obp++ = (c)) \
				: (ttflush(), *tt_obp++ = (c)))
Commit	Line	Data
	1	/*
	2	* Copyright (c) 1983 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms are permitted
	6	* provided that the above copyright notice and this paragraph are
	7	* duplicated in all such forms and that any documentation,
	8	* advertising materials, and other materials related to such
	9	* distribution and use acknowledge that the software was developed
	10	* by the University of California, Berkeley. The name of the
	11	* University may not be used to endorse or promote products derived
	12	* from this software without specific prior written permission.
	13	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	14	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	15	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	16	*
	17	* @(#)tt.h 3.23 (Berkeley) %G%
	18	*/
	19
	20	/*
	21	* Interface structure for the terminal drivers.
	22	*/
	23	struct tt {
	24	/* startup and cleanup */
	25	int (*tt_start)();
	26	int (*tt_end)();
	27
	28	/* terminal functions */
	29	int (*tt_move)();
	30	int (*tt_insline)();
	31	int (*tt_delline)();
	32	int (*tt_inschar)();
	33	int (*tt_insspace)();
	34	int (*tt_delchar)();
	35	int (tt_write)(); / write a whole block */
	36	int (tt_putc)(); / write one character */
	37	int (*tt_clreol)();
	38	int (*tt_clreos)();
	39	int (*tt_clear)();
	40	int (*tt_scroll_down)();
	41	int (*tt_scroll_up)();
	42	int (tt_setscroll)(); / set scrolling region */
	43	int (tt_setmodes)(); / set display modes */
	44	int (tt_set_token)(); / define a token */
	45	int (tt_put_token)(); / refer to a defined token */
	46
	47	/* internal variables */
	48	char tt_modes; /* the current display modes */
	49	char tt_nmodes; /* the new modes for next write */
	50	char tt_insert; /* currently in insert mode */
	51	int tt_row; /* cursor row */
	52	int tt_col; /* cursor column */
	53	int tt_scroll_top; /* top of scrolling region */
	54	int tt_scroll_bot; /* bottom of scrolling region */
	55
	56	/* terminal info */
	57	int tt_nrow; /* number of display rows */
	58	int tt_ncol; /* number of display columns */
	59	char tt_availmodes; /* the display modes supported */
	60	char tt_wrap; /* has auto wrap around */
	61	char tt_retain; /* can retain below (db flag) */
	62	int tt_ntoken; /* number of compression tokens */
	63	int tt_token_min; /* minimun token size */
	64	int tt_token_max; /* maximum token size */
	65	int tt_set_token_cost; /* cost in addition to string */
	66	int tt_put_token_cost; /* constant cost */
	67
	68	/* the frame characters */
	69	short *tt_frame;
	70	};
	71	struct tt tt;
	72
	73	/*
	74	* List of terminal drivers.
	75	*/
	76	struct tt_tab {
	77	char *tt_name;
	78	int tt_len;
	79	int (*tt_func)();
	80	};
	81	extern struct tt_tab tt_tab[];
	82
	83	/*
	84	* Clean interface to termcap routines.
	85	* Too may t's.
	86	*/
	87	char tt_strings[1024]; /* string buffer */
	88	char tt_strp; / pointer for it */
	89
	90	struct tt_str {
	91	char *ts_str;
	92	int ts_n;
	93	};
	94
	95	struct tt_str *tttgetstr();
	96	struct tt_str ttxgetstr(); / tgetstr() and expand delays */
	97
	98	int tttputc();
	99	#define tttputs(s, n) tputs((s)->ts_str, (n), tttputc)
	100	#define ttxputs(s) ttwrite((s)->ts_str, (s)->ts_n)
	101
	102	/*
	103	* Buffered output without stdio.
	104	* These variables have different meanings from the ww_ob* variabels.
	105	* But I'm too lazy to think up different names.
	106	*/
	107	char tt_ob[512];
	108	char *tt_obp;
	109	char *tt_obe;
	110	#define ttputc(c) (tt_obp < tt_obe ? (*tt_obp++ = (c)) \
	111	: (ttflush(), *tt_obp++ = (c)))