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term.h
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1990-11-03
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/* $Header: term.h,v 4.3.2.2 90/04/06 20:35:34 sob Exp $
*
* $Log: term.h,v $
* Revision 4.3.2.2 90/04/06 20:35:34 sob
* Added fixes for SCO Xenix sent by ronald@robobar.co.uk.
*
* Revision 4.3.2.1 89/11/28 01:54:03 sob
* Added better support for SIGWINCH.
*
* Revision 4.3.1.2 85/05/13 15:52:05 lwall
* Declared devtty on TERMIO system.
*
* Revision 4.3.1.1 85/05/10 11:41:24 lwall
* Branch for patches.
*
* Revision 4.3 85/05/01 11:51:36 lwall
* Baseline for release with 4.3bsd.
*
*/
#ifdef PUSHBACK
EXT char circlebuf[PUSHSIZE];
EXT int nextin INIT(0);
EXT int nextout INIT(0);
#ifdef PENDING
#ifndef OSK
#ifdef FIONREAD
EXT long iocount INIT(0);
#ifndef lint
#define input_pending() (nextin!=nextout || (ioctl(0, FIONREAD, &iocount),(int)iocount))
#else
#define input_pending() bizarre
#endif lint
#else /* FIONREAD */
#ifdef RDCHK
#define input_pending() (rdchk(0) > 0) /* boolean only */
#else /* RDCHK */
int circfill();
EXT int devtty INIT(0);
#ifndef lint
#define input_pending() (nextin!=nextout || circfill())
#else
#define input_pending() bizarre
#endif lint
#endif /* RDCHK */
#endif FIONREAD
#else /* OSK */
#define devtty 0
EXT int pendingchars;
#define input_pending() ((pendingchars = _gs_rdy(0)) > 0 ? pendingchars : 0)
#endif /* OSK */
#else PENDING
#ifndef lint
#define input_pending() (nextin!=nextout)
#else
#define input_pending() bizarre
#endif lint
#endif PENDING
#else PUSHBACK
#ifdef PENDING
#ifdef FIONREAD /* must have FIONREAD or O_NDELAY for input_pending() */
#define read_tty(addr,size) read(0,addr,size)
#ifndef lint
#define input_pending() (ioctl(0, FIONREAD, &iocount),(int)iocount)
#else
#define input_pending() bizarre
#endif lint
EXT long iocount INIT(0);
#else FIONREAD
#ifdef RDCHK
#define input_pending() (rdchk(0) > 0) /* boolean only */
#else /* RDCHK */
EXT int devtty INIT(0);
EXT bool is_input INIT(FALSE);
EXT char pending_ch INIT(0);
#ifndef lint
#define input_pending() (is_input || (is_input=read(devtty,&pending_ch,1)))
#else
#define input_pending() bizarre
#endif lint
#endif /* RDCHK */
#endif FIONREAD
#else PENDING
#define read_tty(addr,size) read(0,addr,size)
#define input_pending() (FALSE)
#endif PENDING
#endif PUSHBACK
/* stuff wanted by terminal mode diddling routines */
#ifndef OSK
#ifdef TERMIO
EXT struct termio _tty, _oldtty;
#else
EXT struct sgttyb _tty;
EXT int _res_flg INIT(0);
#endif
#else /* OSK */
EXT struct sgbuf _tty, _oldtty;
#endif /* OSK */
EXT int _tty_ch INIT(2);
EXT bool bizarre INIT(FALSE); /* do we need to restore terminal? */
/* terminal mode diddling routines */
#ifdef TERMIO
#define crmode() ((bizarre=1),_tty.c_lflag &=~ICANON,_tty.c_cc[VMIN] = 1,ioctl(_tty_ch,TCSETAF,&_tty))
#define nocrmode() ((bizarre=1),_tty.c_lflag |= ICANON,_tty.c_cc[VEOF] = CEOF,stty(_tty_ch,&_tty))
#define echo() ((bizarre=1),_tty.c_lflag |= ECHO, ioctl(_tty_ch, TCSETA, &_tty))
#define noecho() ((bizarre=1),_tty.c_lflag &=~ECHO, ioctl(_tty_ch, TCSETA, &_tty))
#define nl() ((bizarre=1),_tty.c_iflag |= ICRNL,_tty.c_oflag |= ONLCR,ioctl(_tty_ch, TCSETAW, &_tty))
#define nonl() ((bizarre=1),_tty.c_iflag &=~ICRNL,_tty.c_oflag &=~ONLCR,ioctl(_tty_ch, TCSETAW, &_tty))
#define savetty() (ioctl(_tty_ch, TCGETA, &_oldtty),ioctl(_tty_ch, TCGETA, &_tty))
#define resetty() ((bizarre=0),ioctl(_tty_ch, TCSETAF, &_oldtty))
#define unflush_output()
#else
#ifndef OSK
#define raw() ((bizarre=1),_tty.sg_flags|=RAW, stty(_tty_ch,&_tty))
#define noraw() ((bizarre=1),_tty.sg_flags&=~RAW,stty(_tty_ch,&_tty))
#define crmode() ((bizarre=1),_tty.sg_flags |= CBREAK, stty(_tty_ch,&_tty))
#define nocrmode() ((bizarre=1),_tty.sg_flags &= ~CBREAK,stty(_tty_ch,&_tty))
#define echo() ((bizarre=1),_tty.sg_flags |= ECHO, stty(_tty_ch, &_tty))
#define noecho() ((bizarre=1),_tty.sg_flags &= ~ECHO, stty(_tty_ch, &_tty))
#define nl() ((bizarre=1),_tty.sg_flags |= CRMOD,stty(_tty_ch, &_tty))
#define nonl() ((bizarre=1),_tty.sg_flags &= ~CRMOD, stty(_tty_ch, &_tty))
#define savetty() (gtty(_tty_ch, &_tty), _res_flg = _tty.sg_flags)
#define resetty() ((bizarre=0),_tty.sg_flags = _res_flg, stty(_tty_ch, &_tty))
#ifdef LFLUSHO
#ifndef lint
EXT int lflusho INIT(LFLUSHO);
#else
EXT long lflusho INIT(LFLUSHO);
#endif lint
#define unflush_output() (ioctl(_tty_ch,TIOCLBIC,&lflusho))
#else
#define unflush_output()
#endif LFLUSHO
#else /* OSK */
/* raw() and noraw() arn't used */
#define crmode() ((bizarre=1), _tty.sg_bspch=0, _tty.sg_dlnch=0,\
_tty.sg_rlnch=0, _tty.sg_dulnch=0, _tty.sg_kbich=0, _tty.sg_kbach=0,\
_tty.sg_bsech=0, _tty.sg_bellch=0, _tty.sg_pause=0,\
_ss_opt(_tty_ch,&_tty))
/* nocrmode() isn't used either */
#define echo() ((bizarre=1), _tty.sg_echo=1, _ss_opt(_tty_ch, &_tty))
#define noecho() ((bizarre=1), _tty.sg_echo=0, _ss_opt(_tty_ch, &_tty))
#define nl() ((bizarre=1), _tty.sg_alf=1, _ss_opt(_tty_ch, &_tty))
#define nonl() ((bizarre=1), _tty.sg_alf=0, _ss_opt(_tty_ch, &_tty))
#define savetty() (_gs_opt(_tty_ch, &_tty), _gs_opt(_tty_ch, &_oldtty))
#define resetty() ((bizarre=0), _ss_opt(_tty_ch, &_oldtty))
#define unflush_output()
#endif /* OSK */
#endif /* TERMIO */
#ifdef TIOCSTI
#ifdef lint
#define forceme(c) ioctl(_tty_ch,TIOCSTI,Null(long*)) /* ghad! */
#else
#define forceme(c) ioctl(_tty_ch,TIOCSTI,c) /* pass character in " " */
#endif lint
#else
#define forceme(c)
#endif
/* termcap stuff */
/*
* NOTE: if you don't have termlib you'll either have to define these strings
* and the tputs routine, or you'll have to redefine the macros below
*/
#ifdef HAVETERMLIB
EXT char *BC INIT(Nullch); /* backspace character */
EXT char *UP INIT(Nullch); /* move cursor up one line */
EXT char *CR INIT(Nullch); /* get to left margin, somehow */
EXT char *VB INIT(Nullch); /* visible bell */
EXT char *CL INIT(Nullch); /* home and clear screen */
EXT char *CE INIT(Nullch); /* clear to end of line */
#ifdef CLEAREOL
EXT char *CM INIT(Nullch); /* cursor motion -- PWP */
EXT char *HO INIT(Nullch); /* home cursor -- PWP */
EXT char *CD INIT(Nullch); /* clear to end of display -- PWP */
#endif CLEAREOL
EXT char *SO INIT(Nullch); /* begin standout mode */
EXT char *SE INIT(Nullch); /* end standout mode */
EXT int SG INIT(0); /* blanks left by SO and SE */
EXT char *US INIT(Nullch); /* start underline mode */
EXT char *UE INIT(Nullch); /* end underline mode */
EXT char *UC INIT(Nullch); /* underline a character, if that's how it's done */
EXT int UG INIT(0); /* blanks left by US and UE */
EXT bool AM INIT(FALSE); /* does terminal have automatic margins? */
EXT bool XN INIT(FALSE); /* does it eat 1st newline after automatic wrap? */
#ifdef OSK /* compiler bug */
#define PC PC_
#endif
EXT char PC INIT(0); /* pad character for use by tputs() */
EXT short ospeed INIT(0); /* terminal output speed, for use by tputs() */
EXT int LINES INIT(0), COLS INIT(0); /* size of screen */
EXT int just_a_sec INIT(960); /* 1 sec at current baud rate */
/* (number of nulls) */
/* define a few handy macros */
#define backspace() tputs(BC,0,putchr) FLUSH
#define clear() tputs(CL,LINES,putchr) FLUSH
#define erase_eol() tputs(CE,1,putchr) FLUSH
#ifdef CLEAREOL
#define clear_rest() tputs(CD,LINES,putchr) FLUSH /* PWP */
#define maybe_eol() if(erase_screen&&can_home_clear)tputs(CE,1,putchr) FLUSH
#endif CLEAREOL
#define underline() tputs(US,1,putchr) FLUSH
#define un_underline() tputs(UE,1,putchr) FLUSH
#define underchar() tputs(UC,0,putchr) FLUSH
#define standout() tputs(SO,1,putchr) FLUSH
#define un_standout() tputs(SE,1,putchr) FLUSH
#define up_line() tputs(UP,1,putchr) FLUSH
#define carriage_return() tputs(CR,1,putchr) FLUSH
#define dingaling() tputs(VB,1,putchr) FLUSH
#else
???????? /* up to you */
#endif
EXT int page_line INIT(1); /* line number for paging in print_line (origin 1) */
void term_init();
void term_set();
#ifdef PUSHBACK
void pushchar();
void mac_init();
void mac_line();
void show_macros();
#endif
char putchr(); /* routine for tputs to call */
bool finish_command();
void eat_typeahead();
void settle_down();
#ifndef read_tty
int read_tty();
#endif
void underprint();
#ifdef NOFIREWORKS
void no_sofire();
void no_ulfire();
#endif
void getcmd();
int get_anything();
void in_char();
int print_lines();
void page_init();
void pad();
void printcmd();
void rubout();
void reprint();
#ifdef CLEAREOL
void home_cursor();
#endif CLEAREOL
#ifdef SIGWINCH
int winch_catcher();
#endif /* SIGWINCH */