NetBSD/usr.bin/window/tt.h

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/* $NetBSD: tt.h,v 1.6 1999/10/04 23:31:30 lukem Exp $ */
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/*
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* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
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*
* This code is derived from software contributed to Berkeley by
* Edward Wang at The University of California, Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
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* @(#)tt.h 8.1 (Berkeley) 6/6/93
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*/
#include <unistd.h>
#ifndef EXTERN
#define EXTERN extern
#endif
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/*
* Interface structure for the terminal drivers.
*/
struct tt {
/* startup and cleanup */
void (*tt_start) __P((void));
void (*tt_reset) __P((void));
void (*tt_end) __P((void));
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/* terminal functions */
void (*tt_move) __P((int, int));
void (*tt_insline) __P((int));
void (*tt_delline) __P((int));
void (*tt_inschar) __P((char));
void (*tt_insspace) __P((int));
void (*tt_delchar) __P((int));
void (*tt_write) __P((char *, int)); /* write a whole block */
void (*tt_putc) __P((char)); /* write one character */
void (*tt_clreol) __P((void));
void (*tt_clreos) __P((void));
void (*tt_clear) __P((void));
void (*tt_scroll_down) __P((int));
void (*tt_scroll_up) __P((int));
void (*tt_setscroll) __P((int, int));/* set scrolling region */
void (*tt_setmodes) __P((int)); /* set display modes */
void (*tt_set_token) __P((int, char *, int));
/* define a token */
void (*tt_put_token) __P((int, char *, int));
/* refer to a defined token */
void (*tt_compress) __P((int)); /* begin, end compression */
void (*tt_checksum) __P((char *, int));
/* compute checksum */
void (*tt_checkpoint) __P((void)); /* checkpoint protocol */
int (*tt_rint) __P((char *, int)); /* input processing */
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/* 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) */
short tt_padc; /* the pad character */
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 */
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int tt_ack; /* checkpoint ack-nack flag */
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/* the frame characters */
short *tt_frame;
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/* ttflush() hook */
void (*tt_flush) __P((void));
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};
EXTERN struct tt tt;
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/*
* tt_padc is used by the compression routine.
* It is a short to allow the driver to indicate that there is no padding.
*/
#define TT_PADC_NONE 0x100
/*
* List of terminal drivers.
*/
struct tt_tab {
char *tt_name;
int tt_len;
int (*tt_func) __P((void));
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};
EXTERN struct tt_tab tt_tab[];
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/*
* Clean interface to termcap routines.
* Too may t's.
*/
EXTERN char tt_strings[1024]; /* string buffer */
EXTERN char *tt_strp; /* pointer for it */
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struct tt_str {
char *ts_str;
int ts_n;
};
struct tt_str *tttgetstr __P((char *));
struct tt_str *ttxgetstr __P((char *)); /* tgetstr() and expand delays */
int tt_f100 __P((void));
int tt_generic __P((void));
int tt_h19 __P((void));
int tt_h29 __P((void));
int tt_tvi925 __P((void));
int tt_wyse60 __P((void));
int tt_wyse75 __P((void));
int tt_zapple __P((void));
int tt_zentec __P((void));
void ttflush __P((void));
struct tt_str *tttgetstr __P((char *));
int ttinit __P((void));
void ttpgoto __P((struct tt_str *, int, int, int));
void ttputs __P((char *));
int ttstrcmp __P((struct tt_str *, struct tt_str *));
void tttgoto __P((struct tt_str *, int, int));
int tttputc __P((int));
void ttwrite __P((char *, int));
int ttxputc __P((int));
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#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* variables.
* But I'm too lazy to think up different names.
*/
EXTERN char *tt_ob;
EXTERN char *tt_obp;
EXTERN char *tt_obe;
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#define ttputc(c) (tt_obp < tt_obe ? (*tt_obp++ = (c)) \
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: (ttflush(), *tt_obp++ = (c)))
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/*
* Convenience macros for the drivers
* They require char.h
*/
#define ttctrl(c) ttputc(ctrl(c))
#define ttesc(c) (ttctrl('['), ttputc(c))