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NetBSD/games/larn/io.c
mycroft 210cab4541 Add RCS identifiers, remove some completely useless RCS logs and patchkit 
headers, and a few other insignificant changes.
1993-08-02 17:18:41 +00:00

920 lines
22 KiB
C
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#ifndef lint
static char rcsid[] = "$Id: io.c,v 1.2 1993/08/02 17:20:05 mycroft Exp $";
#endif /* not lint */
/* io.c Larn is copyrighted 1986 by Noah Morgan.
*
* Below are the functions in this file:
*
* setupvt100() Subroutine to set up terminal in correct mode for game
* clearvt100() Subroutine to clean up terminal when the game is over
* getchar() Routine to read in one character from the terminal
* scbr() Function to set cbreak -echo for the terminal
* sncbr() Function to set -cbreak echo for the terminal
* newgame() Subroutine to save the initial time and seed rnd()
*
* FILE OUTPUT ROUTINES
*
* lprintf(format,args . . .) printf to the output buffer
* lprint(integer) send binary integer to output buffer
* lwrite(buf,len) write a buffer to the output buffer
* lprcat(str) sent string to output buffer
*
* FILE OUTPUT MACROS (in header.h)
*
* lprc(character) put the character into the output buffer
*
* FILE INPUT ROUTINES
*
* long lgetc() read one character from input buffer
* long lrint() read one integer from input buffer
* lrfill(address,number) put input bytes into a buffer
* char *lgetw() get a whitespace ended word from input
* char *lgetl() get a \n or EOF ended line from input
*
* FILE OPEN / CLOSE ROUTINES
*
* lcreat(filename) create a new file for write
* lopen(filename) open a file for read
* lappend(filename) open for append to an existing file
* lrclose() close the input file
* lwclose() close output file
* lflush() flush the output buffer
*
* Other Routines
*
* cursor(x,y) position cursor at [x,y]
* cursors() position cursor at [1,24] (saves memory)
* cl_line(x,y) Clear line at [1,y] and leave cursor at [x,y]
* cl_up(x,y) Clear screen from [x,1] to current line.
* cl_dn(x,y) Clear screen from [1,y] to end of display.
* standout(str) Print the string in standout mode.
* set_score_output() Called when output should be literally printed.
** putchar(ch) Print one character in decoded output buffer.
** flush_buf() Flush buffer with decoded output.
** init_term() Terminal initialization -- setup termcap info
** char *tmcapcnv(sd,ss) Routine to convert VT100 \33's to termcap format
* beep() Routine to emit a beep if enabled (see no-beep in .larnopts)
*
* Note: ** entries are available only in termcap mode.
*/
#include "header.h"
#ifdef SYSV /* system III or system V */
#include <termio.h>
#define sgttyb termio
#define stty(_a,_b) ioctl(_a,TCSETA,_b)
#define gtty(_a,_b) ioctl(_a,TCGETA,_b)
static int rawflg = 0;
static char saveeof,saveeol;
#define doraw(_a) if(!rawflg){++rawflg;saveeof=_a.c_cc[VMIN];saveeol=_a.c_cc[VTIME];}\
_a.c_cc[VMIN]=1;_a.c_cc[VTIME]=1;_a.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL)
#define unraw(_a) _a.c_cc[VMIN]=saveeof;_a.c_cc[VTIME]=saveeol;_a.c_lflag |= ICANON|ECHO|ECHOE|ECHOK|ECHONL
#else not SYSV
#ifndef BSD
#define CBREAK RAW /* V7 has no CBREAK */
#endif
#define doraw(_a) (_a.sg_flags |= CBREAK,_a.sg_flags &= ~ECHO)
#define unraw(_a) (_a.sg_flags &= ~CBREAK,_a.sg_flags |= ECHO)
#include <sgtty.h>
#endif not SYSV
#ifndef NOVARARGS /* if we have varargs */
#include <varargs.h>
#else NOVARARGS /* if we don't have varargs */
typedef char *va_list;
#define va_dcl int va_alist;
#define va_start(plist) plist = (char *) &va_alist
#define va_end(plist)
#define va_arg(plist,mode) ((mode *)(plist += sizeof(mode)))[-1]
#endif NOVARARGS
#define LINBUFSIZE 128 /* size of the lgetw() and lgetl() buffer */
int lfd; /* output file numbers */
int fd; /* input file numbers */
static struct sgttyb ttx; /* storage for the tty modes */
static int ipoint=MAXIBUF,iepoint=MAXIBUF; /* input buffering pointers */
static char lgetwbuf[LINBUFSIZE]; /* get line (word) buffer */
/*
* setupvt100() Subroutine to set up terminal in correct mode for game
*
* Attributes off, clear screen, set scrolling region, set tty mode
*/
setupvt100()
{
clear(); setscroll(); scbr(); /* system("stty cbreak -echo"); */
}
/*
* clearvt100() Subroutine to clean up terminal when the game is over
*
* Attributes off, clear screen, unset scrolling region, restore tty mode
*/
clearvt100()
{
resetscroll(); clear(); sncbr(); /* system("stty -cbreak echo"); */
}
/*
* getchar() Routine to read in one character from the terminal
*/
getchar()
{
char byt;
#ifdef EXTRA
c[BYTESIN]++;
#endif
lflush(); /* be sure output buffer is flushed */
read(0,&byt,1); /* get byte from terminal */
return(byt);
}
/*
* scbr() Function to set cbreak -echo for the terminal
*
* like: system("stty cbreak -echo")
*/
scbr()
{
gtty(0,&ttx); doraw(ttx); stty(0,&ttx);
}
/*
* sncbr() Function to set -cbreak echo for the terminal
*
* like: system("stty -cbreak echo")
*/
sncbr()
{
gtty(0,&ttx); unraw(ttx); stty(0,&ttx);
}
/*
* newgame() Subroutine to save the initial time and seed rnd()
*/
newgame()
{
register long *p,*pe;
for (p=c,pe=c+100; p<pe; *p++ =0);
time(&initialtime); srand(initialtime);
lcreat((char*)0); /* open buffering for output to terminal */
}
/*
* lprintf(format,args . . .) printf to the output buffer
* char *format;
* ??? args . . .
*
* Enter with the format string in "format", as per printf() usage
* and any needed arguments following it
* Note: lprintf() only supports %s, %c and %d, with width modifier and left
* or right justification.
* No correct checking for output buffer overflow is done, but flushes
* are done beforehand if needed.
* Returns nothing of value.
*/
#ifdef lint
/*VARARGS*/
lprintf(str)
char *str;
{
char *str2;
str2 = str;
str = str2; /* to make lint happy */
}
/*VARARGS*/
sprintf(str)
char *str;
{
char *str2;
str2 = str;
str = str2; /* to make lint happy */
}
#else lint
/*VARARGS*/
lprintf(va_alist)
va_dcl
{
va_list ap; /* pointer for variable argument list */
register char *fmt;
register char *outb,*tmpb;
register long wide,left,cont,n; /* data for lprintf */
char db[12]; /* %d buffer in lprintf */
va_start(ap); /* initialize the var args pointer */
fmt = va_arg(ap, char *); /* pointer to format string */
if (lpnt >= lpend) lflush();
outb = lpnt;
for ( ; ; )
{
while (*fmt != '%')
if (*fmt) *outb++ = *fmt++; else { lpnt=outb; return; }
wide = 0; left = 1; cont=1;
while (cont)
switch(*(++fmt))
{
case 'd': n = va_arg(ap, long);
if (n<0) { n = -n; *outb++ = '-'; if (wide) --wide; }
tmpb = db+11; *tmpb = (char)(n % 10 + '0');
while (n>9) *(--tmpb) = (char)((n /= 10) % 10 + '0');
if (wide==0) while (tmpb < db+12) *outb++ = *tmpb++;
else
{
wide -= db-tmpb+12;
if (left) while (wide-- > 0) *outb++ = ' ';
while (tmpb < db+12) *outb++ = *tmpb++;
if (left==0) while (wide-- > 0) *outb++ = ' ';
}
cont=0; break;
case 's': tmpb = va_arg(ap, char *);
if (wide==0) { while (*outb++ = *tmpb++); --outb; }
else
{
n = wide - strlen(tmpb);
if (left) while (n-- > 0) *outb++ = ' ';
while (*outb++ = *tmpb++); --outb;
if (left==0) while (n-- > 0) *outb++ = ' ';
}
cont=0; break;
case 'c': *outb++ = va_arg(ap, int); cont=0; break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': wide = 10*wide + *fmt - '0'; break;
case '-': left = 0; break;
default: *outb++ = *fmt; cont=0; break;
};
fmt++;
}
va_end(ap);
}
#endif lint
/*
* lprint(long-integer) send binary integer to output buffer
* long integer;
*
* +---------+---------+---------+---------+
* | high | | | low |
* | order | | | order |
* | byte | | | byte |
* +---------+---------+---------+---------+
* 31 --- 24 23 --- 16 15 --- 8 7 --- 0
*
* The save order is low order first, to high order (4 bytes total)
* and is written to be system independent.
* No checking for output buffer overflow is done, but flushes if needed!
* Returns nothing of value.
*/
lprint(x)
register long x;
{
if (lpnt >= lpend) lflush();
*lpnt++ = 255 & x; *lpnt++ = 255 & (x>>8);
*lpnt++ = 255 & (x>>16); *lpnt++ = 255 & (x>>24);
}
/*
* lwrite(buf,len) write a buffer to the output buffer
* char *buf;
* int len;
*
* Enter with the address and number of bytes to write out
* Returns nothing of value
*/
lwrite(buf,len)
register char *buf;
int len;
{
register char *str;
register int num2;
if (len > 399) /* don't copy data if can just write it */
{
#ifdef EXTRA
c[BYTESOUT] += len;
#endif
#ifndef VT100
for (str=buf; len>0; --len)
lprc(*str++);
#else VT100
lflush();
write(lfd,buf,len);
#endif VT100
}
else while (len)
{
if (lpnt >= lpend) lflush(); /* if buffer is full flush it */
num2 = lpbuf+BUFBIG-lpnt; /* # bytes left in output buffer */
if (num2 > len) num2=len;
str = lpnt; len -= num2;
while (num2--) *str++ = *buf++; /* copy in the bytes */
lpnt = str;
}
}
/*
* long lgetc() Read one character from input buffer
*
* Returns 0 if EOF, otherwise the character
*/
long lgetc()
{
register int i;
if (ipoint != iepoint) return(inbuffer[ipoint++]);
if (iepoint!=MAXIBUF) return(0);
if ((i=read(fd,inbuffer,MAXIBUF))<=0)
{
if (i!=0) write(1,"error reading from input file\n",30);
iepoint = ipoint = 0; return(0);
}
ipoint=1; iepoint=i; return(*inbuffer);
}
/*
* long lrint() Read one integer from input buffer
*
* +---------+---------+---------+---------+
* | high | | | low |
* | order | | | order |
* | byte | | | byte |
* +---------+---------+---------+---------+
* 31 --- 24 23 --- 16 15 --- 8 7 --- 0
*
* The save order is low order first, to high order (4 bytes total)
* Returns the int read
*/
long lrint()
{
register unsigned long i;
i = 255 & lgetc(); i |= (255 & lgetc()) << 8;
i |= (255 & lgetc()) << 16; i |= (255 & lgetc()) << 24;
return(i);
}
/*
* lrfill(address,number) put input bytes into a buffer
* char *address;
* int number;
*
* Reads "number" bytes into the buffer pointed to by "address".
* Returns nothing of value
*/
lrfill(adr,num)
register char *adr;
int num;
{
register char *pnt;
register int num2;
while (num)
{
if (iepoint == ipoint)
{
if (num>5) /* fast way */
{
if (read(fd,adr,num) != num)
write(2,"error reading from input file\n",30);
num=0;
}
else { *adr++ = lgetc(); --num; }
}
else
{
num2 = iepoint-ipoint; /* # of bytes left in the buffer */
if (num2 > num) num2=num;
pnt = inbuffer+ipoint; num -= num2; ipoint += num2;
while (num2--) *adr++ = *pnt++;
}
}
}
/*
* char *lgetw() Get a whitespace ended word from input
*
* Returns pointer to a buffer that contains word. If EOF, returns a NULL
*/
char *lgetw()
{
register char *lgp,cc;
register int n=LINBUFSIZE,quote=0;
lgp = lgetwbuf;
do cc=lgetc(); while ((cc <= 32) && (cc > NULL)); /* eat whitespace */
for ( ; ; --n,cc=lgetc())
{
if ((cc==NULL) && (lgp==lgetwbuf)) return(NULL); /* EOF */
if ((n<=1) || ((cc<=32) && (quote==0))) { *lgp=NULL; return(lgetwbuf); }
if (cc != '"') *lgp++ = cc; else quote ^= 1;
}
}
/*
* char *lgetl() Function to read in a line ended by newline or EOF
*
* Returns pointer to a buffer that contains the line. If EOF, returns NULL
*/
char *lgetl()
{
register int i=LINBUFSIZE,ch;
register char *str=lgetwbuf;
for ( ; ; --i)
{
if ((*str++ = ch = lgetc()) == NULL)
{
if (str == lgetwbuf+1) return(NULL); /* EOF */
ot: *str = NULL; return(lgetwbuf); /* line ended by EOF */
}
if ((ch=='\n') || (i<=1)) goto ot; /* line ended by \n */
}
}
/*
* lcreat(filename) Create a new file for write
* char *filename;
*
* lcreat((char*)0); means to the terminal
* Returns -1 if error, otherwise the file descriptor opened.
*/
lcreat(str)
char *str;
{
lpnt = lpbuf; lpend = lpbuf+BUFBIG;
if (str==NULL) return(lfd=1);
if ((lfd=creat(str,0644)) < 0)
{
lfd=1; lprintf("error creating file <%s>\n",str); lflush(); return(-1);
}
return(lfd);
}
/*
* lopen(filename) Open a file for read
* char *filename;
*
* lopen(0) means from the terminal
* Returns -1 if error, otherwise the file descriptor opened.
*/
lopen(str)
char *str;
{
ipoint = iepoint = MAXIBUF;
if (str==NULL) return(fd=0);
if ((fd=open(str,0)) < 0)
{
lwclose(); lfd=1; lpnt=lpbuf; return(-1);
}
return(fd);
}
/*
* lappend(filename) Open for append to an existing file
* char *filename;
*
* lappend(0) means to the terminal
* Returns -1 if error, otherwise the file descriptor opened.
*/
lappend(str)
char *str;
{
lpnt = lpbuf; lpend = lpbuf+BUFBIG;
if (str==NULL) return(lfd=1);
if ((lfd=open(str,2)) < 0)
{
lfd=1; return(-1);
}
lseek(lfd,0,2); /* seek to end of file */
return(lfd);
}
/*
* lrclose() close the input file
*
* Returns nothing of value.
*/
lrclose()
{
if (fd > 0) close(fd);
}
/*
* lwclose() close output file flushing if needed
*
* Returns nothing of value.
*/
lwclose()
{
lflush(); if (lfd > 2) close(lfd);
}
/*
* lprcat(string) append a string to the output buffer
* avoids calls to lprintf (time consuming)
*/
lprcat(str)
register char *str;
{
register char *str2;
if (lpnt >= lpend) lflush();
str2 = lpnt;
while (*str2++ = *str++);
lpnt = str2 - 1;
}
#ifdef VT100
/*
* cursor(x,y) Subroutine to set the cursor position
*
* x and y are the cursor coordinates, and lpbuff is the output buffer where
* escape sequence will be placed.
*/
static char *y_num[]= { "\33[","\33[","\33[2","\33[3","\33[4","\33[5","\33[6",
"\33[7","\33[8","\33[9","\33[10","\33[11","\33[12","\33[13","\33[14",
"\33[15","\33[16","\33[17","\33[18","\33[19","\33[20","\33[21","\33[22",
"\33[23","\33[24" };
static char *x_num[]= { "H","H",";2H",";3H",";4H",";5H",";6H",";7H",";8H",";9H",
";10H",";11H",";12H",";13H",";14H",";15H",";16H",";17H",";18H",";19H",
";20H",";21H",";22H",";23H",";24H",";25H",";26H",";27H",";28H",";29H",
";30H",";31H",";32H",";33H",";34H",";35H",";36H",";37H",";38H",";39H",
";40H",";41H",";42H",";43H",";44H",";45H",";46H",";47H",";48H",";49H",
";50H",";51H",";52H",";53H",";54H",";55H",";56H",";57H",";58H",";59H",
";60H",";61H",";62H",";63H",";64H",";65H",";66H",";67H",";68H",";69H",
";70H",";71H",";72H",";73H",";74H",";75H",";76H",";77H",";78H",";79H",
";80H" };
cursor(x,y)
int x,y;
{
register char *p;
if (lpnt >= lpend) lflush();
p = y_num[y]; /* get the string to print */
while (*p) *lpnt++ = *p++; /* print the string */
p = x_num[x]; /* get the string to print */
while (*p) *lpnt++ = *p++; /* print the string */
}
#else VT100
/*
* cursor(x,y) Put cursor at specified coordinates staring at [1,1] (termcap)
*/
cursor (x,y)
int x,y;
{
if (lpnt >= lpend) lflush ();
*lpnt++ = CURSOR; *lpnt++ = x; *lpnt++ = y;
}
#endif VT100
/*
* Routine to position cursor at beginning of 24th line
*/
cursors()
{
cursor(1,24);
}
#ifndef VT100
/*
* Warning: ringing the bell is control code 7. Don't use in defines.
* Don't change the order of these defines.
* Also used in helpfiles. Codes used in helpfiles should be \E[1 to \E[7 with
* obvious meanings.
*/
static char cap[256];
char *CM, *CE, *CD, *CL, *SO, *SE, *AL, *DL;/* Termcap capabilities */
static char *outbuf=0; /* translated output buffer */
int putchar ();
/*
* init_term() Terminal initialization -- setup termcap info
*/
init_term()
{
char termbuf[1024];
char *capptr = cap+10;
char *term;
switch (tgetent(termbuf, term = getenv("TERM")))
{
case -1:
write(2, "Cannot open termcap file.\n", 26); exit();
case 0:
write(2, "Cannot find entry of ", 21);
write(2, term, strlen (term));
write(2, " in termcap\n", 12);
exit();
};
CM = tgetstr("cm", &capptr); /* Cursor motion */
CE = tgetstr("ce", &capptr); /* Clear to eoln */
CL = tgetstr("cl", &capptr); /* Clear screen */
/* OPTIONAL */
AL = tgetstr("al", &capptr); /* Insert line */
DL = tgetstr("dl", &capptr); /* Delete line */
SO = tgetstr("so", &capptr); /* Begin standout mode */
SE = tgetstr("se", &capptr); /* End standout mode */
CD = tgetstr("cd", &capptr); /* Clear to end of display */
if (!CM) /* can't find cursor motion entry */
{
write(2, "Sorry, for a ",13); write(2, term, strlen(term));
write(2, ", I can't find the cursor motion entry in termcap\n",50);
exit();
}
if (!CE) /* can't find clear to end of line entry */
{
write(2, "Sorry, for a ",13); write(2, term, strlen(term));
write(2,", I can't find the clear to end of line entry in termcap\n",57);
exit();
}
if (!CL) /* can't find clear entire screen entry */
{
write(2, "Sorry, for a ",13); write(2, term, strlen(term));
write(2, ", I can't find the clear entire screen entry in termcap\n",56);
exit();
}
if ((outbuf=malloc(BUFBIG+16))==0) /* get memory for decoded output buffer*/
{
write(2,"Error malloc'ing memory for decoded output buffer\n",50);
died(-285); /* malloc() failure */
}
}
#endif VT100
/*
* cl_line(x,y) Clear the whole line indicated by 'y' and leave cursor at [x,y]
*/
cl_line(x,y)
int x,y;
{
#ifdef VT100
cursor(x,y); lprcat("\33[2K");
#else VT100
cursor(1,y); *lpnt++ = CL_LINE; cursor(x,y);
#endif VT100
}
/*
* cl_up(x,y) Clear screen from [x,1] to current position. Leave cursor at [x,y]
*/
cl_up(x,y)
register int x,y;
{
#ifdef VT100
cursor(x,y); lprcat("\33[1J\33[2K");
#else VT100
register int i;
cursor(1,1);
for (i=1; i<=y; i++) { *lpnt++ = CL_LINE; *lpnt++ = '\n'; }
cursor(x,y);
#endif VT100
}
/*
* cl_dn(x,y) Clear screen from [1,y] to end of display. Leave cursor at [x,y]
*/
cl_dn(x,y)
register int x,y;
{
#ifdef VT100
cursor(x,y); lprcat("\33[J\33[2K");
#else VT100
register int i;
cursor(1,y);
if (!CD)
{
*lpnt++ = CL_LINE;
for (i=y; i<=24; i++) { *lpnt++ = CL_LINE; if (i!=24) *lpnt++ = '\n'; }
cursor(x,y);
}
else
*lpnt++ = CL_DOWN;
cursor(x,y);
#endif VT100
}
/*
* standout(str) Print the argument string in inverse video (standout mode).
*/
standout(str)
register char *str;
{
#ifdef VT100
setbold();
while (*str)
*lpnt++ = *str++;
resetbold();
#else VT100
*lpnt++ = ST_START;
while (*str)
*lpnt++ = *str++;
*lpnt++ = ST_END;
#endif VT100
}
/*
* set_score_output() Called when output should be literally printed.
*/
set_score_output()
{
enable_scroll = -1;
}
/*
* lflush() Flush the output buffer
*
* Returns nothing of value.
* for termcap version: Flush output in output buffer according to output
* status as indicated by `enable_scroll'
*/
#ifndef VT100
static int scrline=18; /* line # for wraparound instead of scrolling if no DL */
lflush ()
{
register int lpoint;
register char *str;
static int curx = 0;
static int cury = 0;
if ((lpoint = lpnt - lpbuf) > 0)
{
#ifdef EXTRA
c[BYTESOUT] += lpoint;
#endif
if (enable_scroll <= -1)
{
flush_buf();
if (write(lfd,lpbuf,lpoint) != lpoint)
write(2,"error writing to output file\n",29);
lpnt = lpbuf; /* point back to beginning of buffer */
return;
}
for (str = lpbuf; str < lpnt; str++)
{
if (*str>=32) { putchar (*str); curx++; }
else switch (*str)
{
case CLEAR: tputs (CL, 0, putchar); curx = cury = 0;
break;
case CL_LINE: tputs (CE, 0, putchar);
break;
case CL_DOWN: tputs (CD, 0, putchar);
break;
case ST_START: tputs (SO, 0, putchar);
break;
case ST_END: tputs (SE, 0, putchar);
break;
case CURSOR: curx = *++str - 1; cury = *++str - 1;
tputs (tgoto (CM, curx, cury), 0, putchar);
break;
case '\n': if ((cury == 23) && enable_scroll)
{
if (!DL || !AL) /* wraparound or scroll? */
{
if (++scrline > 23) scrline=19;
if (++scrline > 23) scrline=19;
tputs (tgoto (CM, 0, scrline), 0, putchar);
tputs (CE, 0, putchar);
if (--scrline < 19) scrline=23;
tputs (tgoto (CM, 0, scrline), 0, putchar);
tputs (CE, 0, putchar);
}
else
{
tputs (tgoto (CM, 0, 19), 0, putchar);
tputs (DL, 0, putchar);
tputs (tgoto (CM, 0, 23), 0, putchar);
/* tputs (AL, 0, putchar); */
}
}
else
{
putchar ('\n'); cury++;
}
curx = 0;
break;
default: putchar (*str); curx++;
};
}
}
lpnt = lpbuf;
flush_buf(); /* flush real output buffer now */
}
#else VT100
/*
* lflush() flush the output buffer
*
* Returns nothing of value.
*/
lflush()
{
register int lpoint;
if ((lpoint = lpnt - lpbuf) > 0)
{
#ifdef EXTRA
c[BYTESOUT] += lpoint;
#endif
if (write(lfd,lpbuf,lpoint) != lpoint)
write(2,"error writing to output file\n",29);
}
lpnt = lpbuf; /* point back to beginning of buffer */
}
#endif VT100
#ifndef VT100
static int index=0;
/*
* putchar(ch) Print one character in decoded output buffer.
*/
int putchar(c)
int c;
{
outbuf[index++] = c;
if (index >= BUFBIG) flush_buf();
}
/*
* flush_buf() Flush buffer with decoded output.
*/
flush_buf()
{
if (index) write(lfd, outbuf, index);
index = 0;
}
/*
* char *tmcapcnv(sd,ss) Routine to convert VT100 escapes to termcap format
*
* Processes only the \33[#m sequence (converts . files for termcap use
*/
char *tmcapcnv(sd,ss)
register char *sd,*ss;
{
register int tmstate=0; /* 0=normal, 1=\33 2=[ 3=# */
char tmdigit=0; /* the # in \33[#m */
while (*ss)
{
switch(tmstate)
{
case 0: if (*ss=='\33') { tmstate++; break; }
ign: *sd++ = *ss;
ign2: tmstate = 0;
break;
case 1: if (*ss!='[') goto ign;
tmstate++;
break;
case 2: if (isdigit(*ss)) { tmdigit= *ss-'0'; tmstate++; break; }
if (*ss == 'm') { *sd++ = ST_END; goto ign2; }
goto ign;
case 3: if (*ss == 'm')
{
if (tmdigit) *sd++ = ST_START;
else *sd++ = ST_END;
goto ign2;
}
default: goto ign;
};
ss++;
}
*sd=0; /* NULL terminator */
return(sd);
}
#endif VT100
/*
* beep() Routine to emit a beep if enabled (see no-beep in .larnopts)
*/
beep()
{
if (!nobeep) *lpnt++ = '\7';
}
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