[unix-history] / usr / src / usr.bin / ul / ul.c

/*	@(#)vcrt.c	3.13	*/
#include <stdio.h>

#define	IESC	'\033'
#define	SO	'\016'
#define	SI	'\017'
#define	HFWD	'9'
#define	HREV	'8'
#define	FREV	'7'
#define	MAXBUF	512

#define	NORMAL	000
#define	ALTSET	001	/* Reverse */
#define	SUPERSC	002	/* Dim */
#define	SUBSC	004	/* Dim | Ul */
#define	UNDERL	010	/* Ul */
#define	BOLD	020	/* Bold */

int	must_use_uc, must_overstrike;
char	*CURS_UP, *CURS_RIGHT, *CURS_LEFT,
	*ENTER_STANDOUT, *EXIT_STANDOUT, *ENTER_UNDERLINE, *EXIT_UNDERLINE,
	*ENTER_DIM, *ENTER_BOLD, *ENTER_REVERSE, *UNDER_CHAR, *EXIT_ATTRIBUTES;

struct	CHAR	{
	char	c_mode;
	char	c_char;
} ;

char	buf[BUFSIZ];

struct	CHAR	obuf[MAXBUF];
int	col, maxcol;
int	mode;
int	halfpos;
int	upln;
int	iflag;

main(argc, argv)
	int argc;
	char **argv;
{
	int c;
	char *cp, *termtype;
	FILE *f;
	char termcap[1024];
	char *getenv();
	extern int optind;
	extern char *optarg;

	termtype = getenv("TERM");
	if (termtype == NULL || (argv[0][0] == 'c' && !isatty(1)))
		termtype = "lpr";
	while ((c=getopt(argc, argv, "it:T:")) != EOF)
		switch(c) {

		case 't':
		case 'T': /* for nroff compatibility */
				termtype = optarg;
			break;
		case 'i':
			iflag = 1;
			break;

		default:
			fprintf(stderr,
				"Usage: %s [ -i ] [ -tTerm ] file...\n",
				argv[0]);
			exit(1);
		}

	switch(tgetent(termcap, termtype)) {

	case 1:
		break;

	default:
		fprintf(stderr,"trouble reading termcap");
		/* fall through to ... */

	case 0:
		/* No such terminal type - assume dumb */
		strcpy(termcap, "dumb:os:col#80:cr=^M:sf=^J:am:");
		break;
	}
	initcap();
	if (    (tgetflag("os") && ENTER_BOLD==NULL ) ||
		(tgetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL))
			must_overstrike = 1;
	setbuf(stdout, buf);
	initbuf();
	if (optind == argc)
		filter(stdin);
	else for (; optind<argc; optind++) {
		f = fopen(argv[optind],"r");
		if (f == NULL) {
			perror(argv[optind]);
			exit(1);
		} else
			filter(f);
	}
	exit(0);
}

filter(f)
FILE *f;
{
	register c;

	while((c = getc(f)) != EOF) switch(c) {

	case '\b':
		if (col > 0)
			col--;
		continue;

	case '\t':
		col = (col+8) & ~07;
		if (col > maxcol)
			maxcol = col;
		continue;

	case '\r':
		col = 0;
		continue;

	case SO:
		mode |= ALTSET;
		continue;

	case SI:
		mode &= ~ALTSET;
		continue;

	case IESC:
		switch (c = getc(f)) {

		case HREV:
			if (halfpos == 0) {
				mode |= SUPERSC;
				halfpos--;
			} else if (halfpos > 0) {
				mode &= ~SUBSC;
				halfpos--;
			} else {
				halfpos = 0;
				reverse();
			}
			continue;

		case HFWD:
			if (halfpos == 0) {
				mode |= SUBSC;
				halfpos++;
			} else if (halfpos < 0) {
				mode &= ~SUPERSC;
				halfpos++;
			} else {
				halfpos = 0;
				fwd();
			}
			continue;

		case FREV:
			reverse();
			continue;

		default:
			fprintf(stderr,
				"Unknown escape sequence in input: %o, %o\n",
				IESC, c);
			exit(1);
		}
		continue;

	case '_':
		if (obuf[col].c_char)
			obuf[col].c_mode |= UNDERL | mode;
		else
			obuf[col].c_char = '_';
	case ' ':
		col++;
		if (col > maxcol)
			maxcol = col;
		continue;

	case '\n':
		flushln();

	default:
		if (c < ' ')	/* non printing */
			continue;
		if (obuf[col].c_char == '\0') {
			obuf[col].c_char = c;
			obuf[col].c_mode = mode;
		} else if (obuf[col].c_char == '_') {
			obuf[col].c_char = c;
			obuf[col].c_mode |= UNDERL|mode;
		} else
			obuf[col].c_mode |= BOLD|mode;
		col++;
		if (col > maxcol)
			maxcol = col;
		continue;
	}
	flushln();
}

flushln()
{
	register lastmode;
	register i;
	int hadmodes = 0;

	lastmode = NORMAL;
	for (i=0; i<maxcol; i++) {
		if (obuf[i].c_mode != lastmode) {
			hadmodes++;
			setmode(obuf[i].c_mode);
			lastmode = obuf[i].c_mode;
		}
		if (obuf[i].c_char == '\0') {
			if (upln) {
				puts(CURS_RIGHT);
			} else
				outc(' ');
		} else
			outc(obuf[i].c_char);
	}
	if (lastmode != NORMAL) {
		setmode(0);
	}
	if (must_overstrike && hadmodes)
		overstrike();
	putchar('\n');
	if (iflag && hadmodes)
		iattr();
	fflush(stdout);
	if (upln)
		upln--;
	initbuf();
}

/*
 * For terminals that can overstrike, overstrike underlines and bolds.
 * We don't do anything with halfline ups and downs, or Greek.
 */
overstrike()
{
	register int i;
	char lbuf[256];
	register char *cp = lbuf;
	int hadbold=0;

	/* Set up overstrike buffer */
	for (i=0; i<maxcol; i++)
		switch (obuf[i].c_mode) {
		case NORMAL:
		default:
			*cp++ = ' ';
			break;
		case UNDERL:
			*cp++ = '_';
			break;
		case BOLD:
			*cp++ = obuf[i].c_char;
			hadbold=1;
			break;
		}
	putchar('\r');
	for (*cp=' '; *cp==' '; cp--)
		*cp = 0;
	for (cp=lbuf; *cp; cp++)
		putchar(*cp);
	if (hadbold) {
		putchar('\r');
		for (cp=lbuf; *cp; cp++)
			putchar(*cp=='_' ? ' ' : *cp);
		putchar('\r');
		for (cp=lbuf; *cp; cp++)
			putchar(*cp=='_' ? ' ' : *cp);
	}
}

iattr()
{
	register int i;
	char lbuf[256];
	register char *cp = lbuf;

	for (i=0; i<maxcol; i++)
		switch (obuf[i].c_mode) {
		case NORMAL:	*cp++ = ' '; break;
		case ALTSET:	*cp++ = 'g'; break;
		case SUPERSC:	*cp++ = '^'; break;
		case SUBSC:	*cp++ = 'v'; break;
		case UNDERL:	*cp++ = '_'; break;
		case BOLD:	*cp++ = '!'; break;
		default:	*cp++ = 'X'; break;
		}
	for (*cp=' '; *cp==' '; cp--)
		*cp = 0;
	for (cp=lbuf; *cp; cp++)
		putchar(*cp);
	putchar('\n');
}

initbuf()
{
	register i;

	for (i=0; i<MAXBUF; i++) {
		obuf[i].c_char = '\0';
		obuf[i].c_mode = NORMAL;
	}
	col = 0;
	maxcol = 0;
	mode &= ALTSET;
}

fwd()
{
	register oldcol, oldmax;

	oldcol = col;
	oldmax = maxcol;
	flushln();
	col = oldcol;
	maxcol = oldmax;
}

reverse()
{
	upln++;
	fwd();
	puts(CURS_UP);
	puts(CURS_UP);
	upln++;
}

initcap()
{
	static char tcapbuf[512];
	char *termtype;
	char *bp = tcapbuf;
	char *getenv(), *tgetstr();

	/* This nonsense attempts to work with both old and new termcap */
	CURS_UP =		tgetstr("up", &bp);
	CURS_RIGHT =		tgetstr("ri", &bp);
	if (CURS_RIGHT == NULL)
		CURS_RIGHT =	tgetstr("nd", &bp);
	CURS_LEFT =		tgetstr("le", &bp);
	if (CURS_LEFT == NULL)
		CURS_LEFT =	tgetstr("bc", &bp);
	if (CURS_LEFT == NULL && tgetflag("bs"))
		CURS_LEFT =	"\b";

	ENTER_STANDOUT =	tgetstr("so", &bp);
	EXIT_STANDOUT =		tgetstr("se", &bp);
	ENTER_UNDERLINE =	tgetstr("us", &bp);
	EXIT_UNDERLINE =	tgetstr("ue", &bp);
	ENTER_DIM =		tgetstr("mh", &bp);
	ENTER_BOLD =		tgetstr("md", &bp);
	ENTER_REVERSE =		tgetstr("mr", &bp);
	EXIT_ATTRIBUTES =	tgetstr("me", &bp);

	if (!ENTER_BOLD && ENTER_REVERSE)
		ENTER_BOLD = ENTER_REVERSE;
	if (!ENTER_BOLD && ENTER_STANDOUT)
		ENTER_BOLD = ENTER_STANDOUT;
	if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
		ENTER_UNDERLINE = ENTER_STANDOUT;
		EXIT_UNDERLINE = EXIT_STANDOUT;
	}
	if (!ENTER_DIM && ENTER_STANDOUT)
		ENTER_DIM = ENTER_STANDOUT;
	if (!ENTER_REVERSE && ENTER_STANDOUT)
		ENTER_REVERSE = ENTER_STANDOUT;
	if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
		EXIT_ATTRIBUTES = EXIT_STANDOUT;
	
	/*
	 * Note that we use REVERSE for the alternate character set,
	 * not the as/ae capabilities.  This is because we are modelling
	 * the model 37 teletype (since that's what nroff outputs) and
	 * the typical as/ae is more of a graphics set, not the greek
	 * letters the 37 has.
	 */

#ifdef notdef
printf("so %s se %s us %s ue %s me %s\n",
	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE,
	EXIT_UNDERLINE, EXIT_ATTRIBUTES);
#endif
	UNDER_CHAR =		tgetstr("uc", &bp);
	must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
}

outchar(c)
char c;
{
	putchar(c&0177);
}

puts(str)
char *str;
{
	if (str)
		tputs(str, 1, outchar);
}

static curmode = 0;
outc(c)
char c;
{
	putchar(c);
	if (must_use_uc &&  (curmode&UNDERL)) {
		puts(CURS_LEFT);
		puts(UNDER_CHAR);
	}
}

setmode(newmode)
int newmode;
{
	if (!iflag)
		switch (newmode) {
		case NORMAL:
			switch(curmode) {
			case NORMAL:
				break;
			case UNDERL:
				puts(EXIT_UNDERLINE);
				break;
			default:
				/* This includes standout */
				puts(EXIT_ATTRIBUTES);
				break;
			}
			break;
		case ALTSET:
			puts(ENTER_REVERSE);
			break;
		case SUPERSC:
			/*
			 * This only works on a few terminals.
			 * It should be fixed.
			 */
			puts(ENTER_UNDERLINE);
			puts(ENTER_DIM);
			break;
		case SUBSC:
			puts(ENTER_DIM);
			break;
		case UNDERL:
			puts(ENTER_UNDERLINE);
			break;
		case BOLD:
			puts(ENTER_BOLD);
			break;
		default:
			/*
			 * We should have some provision here for multiple modes
			 * on at once.  This will have to come later.
			 */
			puts(ENTER_STANDOUT);
			break;
		}
	curmode = newmode;
}
/*	@(#)getopt.c	3.2	*/
#define	ERR(s, c)	if(opterr){\
	fputs(argv[0], stderr);\
	fputs(s, stderr);\
	fputc(c, stderr);\
	fputc('\n', stderr);}

int	opterr = 1;
int	optind = 1;
char	*optarg;
char	*index();

int
getopt (argc, argv, opts)
	char **argv, *opts;
{
	static int sp = 1;
	char c;
	char *cp;

	if (sp == 1)
		if (optind >= argc ||
		   argv[optind][0] != '-' || argv[optind][1] == '\0')
			return EOF;
		else if (strcmp(argv[optind], "--") == NULL) {
			optind++;
			return EOF;
		}
		else if (strcmp(argv[optind], "-?") == NULL) {
			optind++;
			return '?';
		}
	c = argv[optind][sp];
	if (c == ':' || (cp=index(opts, c)) == NULL) {
		ERR (": illegal option -- ", c);
		if (argv[optind][++sp] == '\0') {
			optind++;
			sp = 1;
		}
		return '?';
	}
	if (*++cp == ':') {
		if (argv[optind][2] != '\0')
			optarg = &argv[optind++][sp+1];
		else if (++optind >= argc) {
			ERR (": option requires an argument -- ", c);
			sp = 1;
			return '?';
		} else
			optarg = argv[optind++];
		sp = 1;
	}
	else if (argv[optind][++sp] == '\0') {
		sp = 1;
		optind++;
	}
	return c;
}
Commit	Line	Data
94c88dd0	1	/* @(#)vcrt.c 3.13 */
2770968b BJ	2	#include <stdio.h>
2770968b BJ	3
94c88dd0 BJ	4	#define IESC '\033'
	5	#define SO '\016'
	6	#define SI '\017'
	7	#define HFWD '9'
	8	#define HREV '8'
	9	#define FREV '7'
	10	#define MAXBUF 512
	11
	12	#define NORMAL 000
	13	#define ALTSET 001 /* Reverse */
	14	#define SUPERSC 002 /* Dim */
	15	#define SUBSC 004 /* Dim \| Ul */
	16	#define UNDERL 010 /* Ul */
	17	#define BOLD 020 /* Bold */
	18
	19	int must_use_uc, must_overstrike;
	20	char CURS_UP, CURS_RIGHT, *CURS_LEFT,
	21	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE, EXIT_UNDERLINE,
	22	ENTER_DIM, ENTER_BOLD, ENTER_REVERSE, UNDER_CHAR, *EXIT_ATTRIBUTES;
	23
	24	struct CHAR {
	25	char c_mode;
	26	char c_char;
	27	} ;
	28
2770968b	29	char buf[BUFSIZ];
94c88dd0 BJ	30
	31	struct CHAR obuf[MAXBUF];
	32	int col, maxcol;
	33	int mode;
	34	int halfpos;
	35	int upln;
	36	int iflag;
2770968b BJ	37
	38	main(argc, argv)
	39	int argc;
	40	char **argv;
	41	{
94c88dd0 BJ	42	int c;
94c88dd0 BJ	43	char cp, termtype;
2770968b	44	FILE *f;
94c88dd0 BJ	45	char termcap[1024];
	46	char *getenv();
	47	extern int optind;
	48	extern char *optarg;
2770968b	49
2770968b	50	termtype = getenv("TERM");
94c88dd0 BJ	51	if (termtype == NULL \|\| (argv[0][0] == 'c' && !isatty(1)))
	52	termtype = "lpr";
	53	while ((c=getopt(argc, argv, "it:T:")) != EOF)
	54	switch(c) {
2770968b BJ	55
	56	case 't':
	57	case 'T': /* for nroff compatibility */
94c88dd0	58	termtype = optarg;
2770968b BJ	59	break;
2770968b BJ	60	case 'i':
94c88dd0 BJ	61	iflag = 1;
94c88dd0 BJ	62	break;
2770968b BJ	63
2770968b BJ	64	default:
94c88dd0 BJ	65	fprintf(stderr,
	66	"Usage: %s [ -i ] [ -tTerm ] file...\n",
	67	argv[0]);
2770968b BJ	68	exit(1);
2770968b BJ	69	}
94c88dd0	70
2770968b BJ	71	switch(tgetent(termcap, termtype)) {
	72
	73	case 1:
2770968b BJ	74	break;
	75
	76	default:
	77	fprintf(stderr,"trouble reading termcap");
	78	/* fall through to ... */
	79
	80	case 0:
	81	/* No such terminal type - assume dumb */
94c88dd0	82	strcpy(termcap, "dumb:os:col#80:cr=^M:sf=^J:am:");
2770968b BJ	83	break;
2770968b BJ	84	}
94c88dd0 BJ	85	initcap();
	86	if ( (tgetflag("os") && ENTER_BOLD==NULL ) \|\|
	87	(tgetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL))
	88	must_overstrike = 1;
	89	setbuf(stdout, buf);
	90	initbuf();
	91	if (optind == argc)
2770968b	92	filter(stdin);
94c88dd0 BJ	93	else for (; optind<argc; optind++) {
94c88dd0 BJ	94	f = fopen(argv[optind],"r");
2770968b	95	if (f == NULL) {
94c88dd0	96	perror(argv[optind]);
2770968b BJ	97	exit(1);
	98	} else
	99	filter(f);
	100	}
	101	exit(0);
	102	}
	103
	104	filter(f)
	105	FILE *f;
	106	{
94c88dd0	107	register c;
2770968b	108
94c88dd0 BJ	109	while((c = getc(f)) != EOF) switch(c) {
	110
	111	case '\b':
	112	if (col > 0)
	113	col--;
	114	continue;
	115
	116	case '\t':
	117	col = (col+8) & ~07;
	118	if (col > maxcol)
	119	maxcol = col;
	120	continue;
	121
	122	case '\r':
	123	col = 0;
	124	continue;
	125
	126	case SO:
	127	mode \|= ALTSET;
	128	continue;
	129
	130	case SI:
	131	mode &= ~ALTSET;
	132	continue;
	133
	134	case IESC:
	135	switch (c = getc(f)) {
	136
	137	case HREV:
	138	if (halfpos == 0) {
	139	mode \|= SUPERSC;
	140	halfpos--;
	141	} else if (halfpos > 0) {
	142	mode &= ~SUBSC;
	143	halfpos--;
2770968b	144	} else {
94c88dd0 BJ	145	halfpos = 0;
94c88dd0 BJ	146	reverse();
2770968b	147	}
94c88dd0	148	continue;
2770968b	149
94c88dd0 BJ	150	case HFWD:
	151	if (halfpos == 0) {
	152	mode \|= SUBSC;
	153	halfpos++;
	154	} else if (halfpos < 0) {
	155	mode &= ~SUPERSC;
	156	halfpos++;
	157	} else {
	158	halfpos = 0;
	159	fwd();
2770968b	160	}
94c88dd0 BJ	161	continue;
	162
	163	case FREV:
	164	reverse();
	165	continue;
	166
	167	default:
	168	fprintf(stderr,
	169	"Unknown escape sequence in input: %o, %o\n",
	170	IESC, c);
	171	exit(1);
2770968b	172	}
94c88dd0 BJ	173	continue;
	174
	175	case '_':
	176	if (obuf[col].c_char)
	177	obuf[col].c_mode \|= UNDERL \| mode;
	178	else
	179	obuf[col].c_char = '_';
	180	case ' ':
	181	col++;
	182	if (col > maxcol)
	183	maxcol = col;
	184	continue;
	185
	186	case '\n':
	187	flushln();
	188
	189	default:
	190	if (c < ' ') /* non printing */
	191	continue;
	192	if (obuf[col].c_char == '\0') {
	193	obuf[col].c_char = c;
	194	obuf[col].c_mode = mode;
	195	} else if (obuf[col].c_char == '_') {
	196	obuf[col].c_char = c;
	197	obuf[col].c_mode \|= UNDERL\|mode;
	198	} else
	199	obuf[col].c_mode \|= BOLD\|mode;
	200	col++;
	201	if (col > maxcol)
	202	maxcol = col;
	203	continue;
2770968b	204	}
94c88dd0	205	flushln();
2770968b BJ	206	}
2770968b BJ	207
94c88dd0	208	flushln()
2770968b	209	{
94c88dd0 BJ	210	register lastmode;
	211	register i;
	212	int hadmodes = 0;
	213
	214	lastmode = NORMAL;
	215	for (i=0; i<maxcol; i++) {
	216	if (obuf[i].c_mode != lastmode) {
	217	hadmodes++;
	218	setmode(obuf[i].c_mode);
	219	lastmode = obuf[i].c_mode;
	220	}
	221	if (obuf[i].c_char == '\0') {
	222	if (upln) {
	223	puts(CURS_RIGHT);
	224	} else
	225	outc(' ');
	226	} else
	227	outc(obuf[i].c_char);
	228	}
	229	if (lastmode != NORMAL) {
	230	setmode(0);
	231	}
	232	if (must_overstrike && hadmodes)
	233	overstrike();
	234	putchar('\n');
	235	if (iflag && hadmodes)
	236	iattr();
	237	fflush(stdout);
	238	if (upln)
	239	upln--;
	240	initbuf();
2770968b BJ	241	}
2770968b BJ	242
94c88dd0 BJ	243	/*
	244	* For terminals that can overstrike, overstrike underlines and bolds.
	245	* We don't do anything with halfline ups and downs, or Greek.
	246	*/
	247	overstrike()
	248	{
	249	register int i;
	250	char lbuf[256];
	251	register char *cp = lbuf;
	252	int hadbold=0;
2770968b	253
94c88dd0 BJ	254	/* Set up overstrike buffer */
	255	for (i=0; i<maxcol; i++)
	256	switch (obuf[i].c_mode) {
	257	case NORMAL:
	258	default:
	259	*cp++ = ' ';
	260	break;
	261	case UNDERL:
	262	*cp++ = '_';
	263	break;
	264	case BOLD:
	265	*cp++ = obuf[i].c_char;
	266	hadbold=1;
	267	break;
	268	}
	269	putchar('\r');
	270	for (cp=' '; cp==' '; cp--)
	271	*cp = 0;
	272	for (cp=lbuf; *cp; cp++)
	273	putchar(*cp);
	274	if (hadbold) {
	275	putchar('\r');
	276	for (cp=lbuf; *cp; cp++)
	277	putchar(cp=='_' ? ' ' : cp);
	278	putchar('\r');
	279	for (cp=lbuf; *cp; cp++)
	280	putchar(cp=='_' ? ' ' : cp);
	281	}
	282	}
2770968b	283
94c88dd0	284	iattr()
2770968b	285	{
94c88dd0 BJ	286	register int i;
	287	char lbuf[256];
	288	register char *cp = lbuf;
2770968b	289
94c88dd0 BJ	290	for (i=0; i<maxcol; i++)
	291	switch (obuf[i].c_mode) {
	292	case NORMAL: *cp++ = ' '; break;
	293	case ALTSET: *cp++ = 'g'; break;
	294	case SUPERSC: *cp++ = '^'; break;
	295	case SUBSC: *cp++ = 'v'; break;
	296	case UNDERL: *cp++ = '_'; break;
	297	case BOLD: *cp++ = '!'; break;
	298	default: *cp++ = 'X'; break;
2770968b	299	}
94c88dd0 BJ	300	for (cp=' '; cp==' '; cp--)
	301	*cp = 0;
	302	for (cp=lbuf; *cp; cp++)
	303	putchar(*cp);
	304	putchar('\n');
2770968b BJ	305	}
2770968b BJ	306
94c88dd0	307	initbuf()
2770968b	308	{
94c88dd0	309	register i;
2770968b	310
94c88dd0 BJ	311	for (i=0; i<MAXBUF; i++) {
	312	obuf[i].c_char = '\0';
	313	obuf[i].c_mode = NORMAL;
2770968b	314	}
94c88dd0 BJ	315	col = 0;
	316	maxcol = 0;
	317	mode &= ALTSET;
2770968b BJ	318	}
2770968b BJ	319
94c88dd0	320	fwd()
2770968b	321	{
94c88dd0	322	register oldcol, oldmax;
2770968b	323
94c88dd0 BJ	324	oldcol = col;
	325	oldmax = maxcol;
	326	flushln();
	327	col = oldcol;
	328	maxcol = oldmax;
	329	}
	330
	331	reverse()
	332	{
	333	upln++;
	334	fwd();
	335	puts(CURS_UP);
	336	puts(CURS_UP);
	337	upln++;
	338	}
	339
	340	initcap()
	341	{
	342	static char tcapbuf[512];
	343	char *termtype;
	344	char *bp = tcapbuf;
	345	char getenv(), tgetstr();
	346
	347	/* This nonsense attempts to work with both old and new termcap */
	348	CURS_UP = tgetstr("up", &bp);
	349	CURS_RIGHT = tgetstr("ri", &bp);
	350	if (CURS_RIGHT == NULL)
	351	CURS_RIGHT = tgetstr("nd", &bp);
	352	CURS_LEFT = tgetstr("le", &bp);
	353	if (CURS_LEFT == NULL)
	354	CURS_LEFT = tgetstr("bc", &bp);
	355	if (CURS_LEFT == NULL && tgetflag("bs"))
	356	CURS_LEFT = "\b";
	357
	358	ENTER_STANDOUT = tgetstr("so", &bp);
	359	EXIT_STANDOUT = tgetstr("se", &bp);
	360	ENTER_UNDERLINE = tgetstr("us", &bp);
	361	EXIT_UNDERLINE = tgetstr("ue", &bp);
	362	ENTER_DIM = tgetstr("mh", &bp);
	363	ENTER_BOLD = tgetstr("md", &bp);
	364	ENTER_REVERSE = tgetstr("mr", &bp);
	365	EXIT_ATTRIBUTES = tgetstr("me", &bp);
	366
	367	if (!ENTER_BOLD && ENTER_REVERSE)
	368	ENTER_BOLD = ENTER_REVERSE;
	369	if (!ENTER_BOLD && ENTER_STANDOUT)
	370	ENTER_BOLD = ENTER_STANDOUT;
	371	if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
	372	ENTER_UNDERLINE = ENTER_STANDOUT;
	373	EXIT_UNDERLINE = EXIT_STANDOUT;
	374	}
	375	if (!ENTER_DIM && ENTER_STANDOUT)
	376	ENTER_DIM = ENTER_STANDOUT;
	377	if (!ENTER_REVERSE && ENTER_STANDOUT)
	378	ENTER_REVERSE = ENTER_STANDOUT;
	379	if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
	380	EXIT_ATTRIBUTES = EXIT_STANDOUT;
	381
	382	/*
	383	* Note that we use REVERSE for the alternate character set,
	384	* not the as/ae capabilities. This is because we are modelling
	385	* the model 37 teletype (since that's what nroff outputs) and
	386	* the typical as/ae is more of a graphics set, not the greek
	387	* letters the 37 has.
388	*/
389
390	#ifdef notdef
391	printf("so %s se %s us %s ue %s me %s\n",
392	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE,
393	EXIT_UNDERLINE, EXIT_ATTRIBUTES);
394	#endif
395	UNDER_CHAR = tgetstr("uc", &bp);
396	must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
397	}
398
399	outchar(c)
400	char c;
401	{
402	putchar(c&0177);
403	}
404
405	puts(str)
406	char *str;
407	{
408	if (str)
409	tputs(str, 1, outchar);
410	}
411
412	static curmode = 0;
413	outc(c)
414	char c;
415	{
416	putchar(c);
417	if (must_use_uc && (curmode&UNDERL)) {
418	puts(CURS_LEFT);
419	puts(UNDER_CHAR);
420	}
421	}
422
423	setmode(newmode)
424	int newmode;
425	{
426	if (!iflag)
427	switch (newmode) {
428	case NORMAL:
429	switch(curmode) {
430	case NORMAL:
2770968b	431	break;
94c88dd0 BJ	432	case UNDERL:
94c88dd0 BJ	433	puts(EXIT_UNDERLINE);
2770968b	434	break;
94c88dd0 BJ	435	default:
	436	/* This includes standout */
	437	puts(EXIT_ATTRIBUTES);
2770968b	438	break;
94c88dd0 BJ	439	}
	440	break;
	441	case ALTSET:
	442	puts(ENTER_REVERSE);
	443	break;
	444	case SUPERSC:
	445	/*
	446	* This only works on a few terminals.
	447	* It should be fixed.
	448	*/
	449	puts(ENTER_UNDERLINE);
	450	puts(ENTER_DIM);
	451	break;
	452	case SUBSC:
	453	puts(ENTER_DIM);
	454	break;
	455	case UNDERL:
	456	puts(ENTER_UNDERLINE);
	457	break;
	458	case BOLD:
	459	puts(ENTER_BOLD);
	460	break;
	461	default:
	462	/*
	463	* We should have some provision here for multiple modes
	464	* on at once. This will have to come later.
	465	*/
	466	puts(ENTER_STANDOUT);
	467	break;
2770968b	468	}
94c88dd0 BJ	469	curmode = newmode;
	470	}
	471	/* @(#)getopt.c 3.2 */
	472	#define ERR(s, c) if(opterr){\
	473	fputs(argv[0], stderr);\
	474	fputs(s, stderr);\
	475	fputc(c, stderr);\
	476	fputc('\n', stderr);}
	477
	478	int opterr = 1;
	479	int optind = 1;
	480	char *optarg;
	481	char *index();
	482
	483	int
	484	getopt (argc, argv, opts)
	485	char *argv, opts;
	486	{
	487	static int sp = 1;
	488	char c;
	489	char *cp;
	490
	491	if (sp == 1)
	492	if (optind >= argc \|\|
	493	argv[optind][0] != '-' \|\| argv[optind][1] == '\0')
	494	return EOF;
	495	else if (strcmp(argv[optind], "--") == NULL) {
	496	optind++;
	497	return EOF;
2770968b	498	}
94c88dd0 BJ	499	else if (strcmp(argv[optind], "-?") == NULL) {
	500	optind++;
	501	return '?';
	502	}
	503	c = argv[optind][sp];
	504	if (c == ':' \|\| (cp=index(opts, c)) == NULL) {
	505	ERR (": illegal option -- ", c);
	506	if (argv[optind][++sp] == '\0') {
	507	optind++;
	508	sp = 1;
	509	}
	510	return '?';
2770968b	511	}
94c88dd0 BJ	512	if (*++cp == ':') {
	513	if (argv[optind][2] != '\0')
	514	optarg = &argv[optind++][sp+1];
	515	else if (++optind >= argc) {
	516	ERR (": option requires an argument -- ", c);
	517	sp = 1;
	518	return '?';
2770968b	519	} else
94c88dd0 BJ	520	optarg = argv[optind++];
	521	sp = 1;
	522	}
	523	else if (argv[optind][++sp] == '\0') {
	524	sp = 1;
	525	optind++;
	526	}
	527	return c;
2770968b	528	}