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Source Code 1992 March
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Source_Code_CD-ROM_Walnut_Creek_March_1992.iso
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msdos
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j414src.arc
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TERM.C
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C/C++ Source or Header
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1989-10-10
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7KB
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374 lines
/***************************************************************************
* This program is Copyright (C) 1986, 1987, 1988 by Jonathan Payne. JOVE *
* is provided to you without charge, and with no warranty. You may give *
* away copies of JOVE, including sources, provided that this notice is *
* included in all the files. *
***************************************************************************/
#include "jove.h"
#include "fp.h"
#include "disp.h"
#include <ctype.h>
#include <errno.h>
#ifndef MAC /* most of the file... */
# ifdef STDARGS
# include <stdarg.h>
# else
# include <varargs.h>
# endif
#ifndef MSDOS
# ifdef SYSV
# include <termio.h>
# else
# include <sgtty.h>
# endif /* SYSV */
#endif /* MSDOS */
#ifdef IPROCS
# include <signal.h>
#endif
#include "termcap.h"
/* Termcap definitions */
#ifndef IBMPC
char *CS,
*SO,
*SE,
*CM,
*CL,
*CE,
*HO,
*AL,
*DL,
*VS,
*VE,
*KS,
*KE,
*TI,
*TE,
*IC,
*DC,
*IM,
*EI,
*LL,
*M_IC, /* Insert char with arg */
*M_DC, /* Delete char with arg */
*M_AL, /* Insert line with arg */
*M_DL, /* Delete line with arg */
*SF, /* Scroll forward */
*SR,
*SP, /* Send Cursor Position */
*VB,
*BL,
*IP, /* insert pad after character inserted */
*lPC,
*NL,
*DO;
#endif
int LI,
ILI, /* Internal lines, i.e., 23 of LI is 24. */
CO,
UL,
MI,
SG, /* number of magic cookies left by SO and SE */
XS, /* whether standout is braindamaged */
HZ, /* Hazeltine tilde kludge */
TABS,
UPlen,
HOlen,
LLlen;
#ifdef notdef
/*
* Are you sure about this one Jon? On the SYSV system I tried this
* on I got a multiple definition of PC because it was already
* defined in -ltermcap. Similarly for BC and UP ...
*/
# ifdef SYSVR2 /* release 2, at least */
char PC;
# endif /* SYSVR2 */
#endif
#ifndef IBMPC
private char tspace[256];
/* The ordering of ts and meas must agree !! */
private const char ts[] =
"vsvealdlspcssosecmclcehoupbcicimdceillsfsrvbksketiteALDLICDCpcipblnldo";
private char **const meas[] = {
&VS, &VE, &AL, &DL, &SP, &CS, &SO, &SE,
&CM, &CL, &CE, &HO, &UP, &BC, &IC, &IM,
&DC, &EI, &LL, &SF, &SR, &VB, &KS, &KE,
&TI, &TE, &M_AL, &M_DL, &M_IC, &M_DC,
&lPC, &IP, &BL, &NL, &DO, 0
};
private void
TermError()
{
flusho();
_exit(1);
}
void
getTERM()
{
extern char *getenv(), *tgetstr() ;
char termbuf[13],
*termname = NULL,
*termp = tspace,
tbuff[2048]; /* Good grief! */
const char *tsp = ts;
int i;
termname = getenv("TERM");
if ((termname == NULL) || (*termname == '\0') ||
(strcmp(termname, "dumb") == 0) ||
(strcmp(termname, "unknown") == 0) ||
(strcmp(termname, "network") == 0)) {
putstr("Enter terminal type (e.g, vt100): ");
flusho();
termbuf[read(0, termbuf, sizeof(termbuf)) - 1] = '\0';
if (termbuf[0] == 0)
TermError();
termname = termbuf;
}
if (tgetent(tbuff, termname) < 1) {
writef("[\"%s\" unknown terminal type?]", termname);
TermError();
}
if ((CO = tgetnum("co")) == -1) {
wimperr:
writef("You can't run JOVE on a %s terminal.\n", termname);
TermError();
/*NOTREACHED*/
}
else if (CO > MAXCOLS)
CO = MAXCOLS;
if ((LI = tgetnum("li")) == -1)
goto wimperr;
if ((SG = tgetnum("sg")) == -1)
SG = 0; /* Used for mode line only */
if ((XS = tgetflag("xs")) == -1)
XS = 0; /* Used for mode line only */
if ((HZ = tgetflag("hz")) == -1)
HZ = 0; /* Hazeltine tilde kludge */
for (i = 0; meas[i]; i++) {
static char nm[3] = "xx";
nm[0] = *tsp++;
nm[1] = *tsp++;
*(meas[i]) = (char *) tgetstr(nm, &termp);
if (termp > tspace + sizeof(tspace))
goto wimperr;
}
if (lPC)
PC = *lPC;
if (XS)
SO = SE = 0;
if (CS && !SR)
CS = SR = SF = 0;
if (CS && !SF)
SF = "\n";
if (IM && (*IM == 0))
IM = 0;
else
MI = tgetflag("mi");
UL = tgetflag("ul");
if (NL == 0)
NL = "\n";
else { /* strip stupid padding information */
while (isdigit(*NL))
NL += 1;
if (*NL == '*')
NL += 1;
}
if (!DO)
DO = NL;
if (BL == 0)
BL = "\007";
if (tgetflag("km") > 0) /* has meta-key */
MetaKey = YES;
#ifdef ID_CHAR
disp_opt_init();
#endif
if ((CanScroll = ((AL && DL) || CS)) != 0)
IDline_setup(termname);
}
#else
void
InitCM()
{
}
int EGA;
void
getTERM()
{
char *getenv(), *tgetstr() ;
char *termname;
void init_43(), init_term();
unsigned char lpp(), chpl();
if (getenv("EGA") || (!stricmp(getenv("TERM"), "EGA"))) {
termname = "ega";
init_43();
EGA = 1;
}
else {
termname = "ibmpc";
init_term();
EGA = 0;
}
CO = chpl();
LI = lpp();
SG = 0; /* Used for mode line only */
XS = 0; /* Used for mode line only */
CanScroll = 1;
}
#endif /* IBMPC */
#else /* MAC */
int LI,
ILI, /* Internal lines, i.e., 23 of LI is 24. */
CO,
TABS,
SG;
void getTERM()
{
SG = 0;
CanScroll = 1;
}
#endif /* MAC */
/* put a string with padding */
#ifndef IBMPC
private void
tputc(c)
int c;
{
jputchar(c);
}
#endif /* IBMPC */
#ifndef MAC
void
putpad(str, lines)
char *str;
int lines;
{
#ifndef IBMPC
if (str)
tputs(str, lines, tputc);
#else /* IBMPC */
write_emif(str);
#endif /* IBMPC */
}
void
putargpad(str, arg, lines)
char *str;
int arg,
lines;
{
#ifndef IBMPC
if (str) {
tputs(
#ifdef TERMINFO
tparm(str, arg),
#else /* TERMINFO */
tgoto(str, 0, arg), /* fudge */
#endif /* TERMINFO */
lines, tputc);
}
#else /* IBMPC */
/* This code is only a guess: I don't know if any M_* termcap
* attributes are defined for the PC. If they are not used,
* this routine is not called. Perhaps this routine should
* simply abort.
*/
if (str) {
char buf[16]; /* hope that this is long enough */
swritef(buf, str, arg); /* hope only %d appears in str */
write_em(buf);
}
#endif /* IBMPC */
}
#endif /* MAC */
/* Determine the number of characters to buffer at each baud rate. The
lower the number, the quicker the response when new input arrives. Of
course the lower the number, the more prone the program is to stop in
output. Decide what matters most to you. This sets BufSize to the right
number or chars, and initializes `stdout'. */
void
settout(ttbuf)
char *ttbuf;
{
int speed_chars;
static const int speeds[] = {
1, /* 0 */
1, /* 50 */
1, /* 75 */
1, /* 110 */
1, /* 134 */
1, /* 150 */
1, /* 200 */
2, /* 300 */
4, /* 600 */
8, /* 1200 */
16, /* 1800 */
32, /* 2400 */
128, /* 4800 */
256, /* 9600 */
512, /* EXTA */
1024 /* EXT */
};
#if (defined(MSDOS) || defined(MAC))
speed_chars = 256;
#else
speed_chars = speeds[ospeed];
#endif
flusho(); /* flush the one character buffer */
BufSize = min(MAXTTYBUF, speed_chars * max(LI / 24, 1));
stdout = fd_open("/dev/tty", F_WRITE|F_LOCKED, 1, ttbuf, BufSize);
}