4.4BSD/usr/src/contrib/news/trn3/term.h
/* $Id: term.h,v 3.0 1992/02/01 03:09:32 davison Trn $
*/
/* This software is Copyright 1991 by Stan Barber.
*
* Permission is hereby granted to copy, reproduce, redistribute or otherwise
* use this software as long as: there is no monetary profit gained
* specifically from the use or reproduction of this software, it is not
* sold, rented, traded or otherwise marketed, and this copyright notice is
* included prominently in any copy made.
*
* The author make no claims as to the fitness or correctness of this software
* for any use whatsoever, and it is provided as is. Any use of this software
* is at the user's own risk.
*/
EXT char circlebuf[PUSHSIZE];
EXT int nextin INIT(0);
EXT int nextout INIT(0);
EXT char lastchar;
#ifdef PENDING
# 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 HAS_RDCHK
#define input_pending() (rdchk(0) > 0) /* boolean only */
# else /* HAS_RDCHK */
int circfill();
EXT int devtty INIT(0);
# ifndef lint
#define input_pending() (nextin!=nextout || circfill())
# else
#define input_pending() bizarre
# endif /* lint */
# endif /* HAS_RDCHK */
# endif /* FIONREAD */
#else /* PENDING */
# ifndef lint
#define input_pending() (nextin!=nextout)
# else
#define input_pending() bizarre
# endif /* lint */
#endif /* PENDING */
/* stuff wanted by terminal mode diddling routines */
#ifdef I_TERMIO
EXT struct termio _tty, _oldtty;
#else
# ifdef I_TERMIOS
EXT struct termios _tty, _oldtty;
# else
EXT struct sgttyb _tty;
EXT int _res_flg INIT(0);
# endif
#endif
EXT int _tty_ch INIT(2);
EXT bool bizarre INIT(FALSE); /* do we need to restore terminal? */
/* terminal mode diddling routines */
#ifdef I_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 /* !I_TERMIO */
# ifdef I_TERMIOS
#define crmode() ((bizarre=1), _tty.c_lflag &= ~ICANON,_tty.c_cc[VMIN]=1,tcsetattr(_tty_ch, TCSAFLUSH, &_tty))
#define nocrmode() ((bizarre=1),_tty.c_lflag |= ICANON,_tty.c_cc[VEOF] = CEOF,tcsetattr(_tty_ch, TCSAFLUSH,&_tty))
#define echo() ((bizarre=1),_tty.c_lflag |= ECHO, tcsetattr(_tty_ch, TCSAFLUSH, &_tty))
#define noecho() ((bizarre=1),_tty.c_lflag &=~ECHO, tcsetattr(_tty_ch, TCSAFLUSH, &_tty))
#define nl() ((bizarre=1),_tty.c_iflag |= ICRNL,_tty.c_oflag |= ONLCR,tcsetattr(_tty_ch, TCSAFLUSH, &_tty))
#define nonl() ((bizarre=1),_tty.c_iflag &=~ICRNL,_tty.c_oflag &=~ONLCR,tcsetattr(_tty_ch, TCSAFLUSH, &_tty))
#define savetty() (tcgetattr(_tty_ch, &_oldtty),tcgetattr(_tty_ch, &_tty))
#define resetty() ((bizarre=0),tcsetattr(_tty_ch, TCSAFLUSH, &_oldtty))
#define unflush_output()
# else /* !I_TERMIOS */
#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 */
# endif /* I_TERMIOS */
#endif /* I_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 HAS_TERMLIB
EXT int GT; /* hardware tabs */
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 */
EXT char *TI INIT(Nullch); /* initialize terminal */
EXT char *TE INIT(Nullch); /* reset terminal */
EXT char *CM INIT(Nullch); /* cursor motion */
EXT char *HO INIT(Nullch); /* home cursor */
#ifdef CLEAREOL
EXT char *CD INIT(Nullch); /* clear to end of display */
#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? */
EXT char PC INIT(0); /* pad character for use by tputs() */
#ifdef _POSIX_SOURCE
EXT speed_t outspeed INIT(0); /* terminal output speed, */
#else
EXT long outspeed INIT(0); /* for use by tputs() */
#endif
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
#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));
void term_set _((char*));
void pushchar _((char_int));
void pushstring _((char*,char_int));
void mac_init _((char*));
void mac_line _((char*,char*,int));
void show_macros _((void));
char putchr _((char_int)); /* routine for tputs to call */
bool finish_command _((int));
bool finish_dblchar _((void));
void eat_typeahead _((void));
void save_typeahead _((char*, int));
void settle_down _((void));
#ifdef HAS_TERMLIB
void termlib_init _((void));
void termlib_reset _((void));
#endif
#ifndef read_tty
int read_tty _((char*,int));
#endif
void underprint _((char*));
#ifdef NOFIREWORKS
void no_sofire _((void));
void no_ulfire _((void));
#endif
void getcmd _((char*));
int get_anything _((void));
int pause_getcmd _((void));
void in_char _((char*,char_int));
void in_answer _((char*,char_int));
int print_lines _((char*,int));
void page_init _((void));
void pad _((int));
void printcmd _((void));
void rubout _((void));
void reprint _((void));
void home_cursor _((void));
void goto_line _((int,int));
#ifdef SIGWINCH
Signal_t winch_catcher _((int));
#endif /* SIGWINCH */