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

/*	@(#)vcrt.c	3.13	*/
static char SccsId[] =	"@(#)ul.c	4.3	(Berkeley)	%G%";

#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)
	{
		if (curmode != NORMAL && newmode != NORMAL)
			setmode(NORMAL);
		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 */
a7878ce2 BJ	2	static char SccsId[] = "@(#)ul.c 4.3 (Berkeley) %G%";
a7878ce2 BJ	3
2770968b BJ	4	#include <stdio.h>
2770968b BJ	5
94c88dd0 BJ	6	#define IESC '\033'
	7	#define SO '\016'
	8	#define SI '\017'
	9	#define HFWD '9'
	10	#define HREV '8'
	11	#define FREV '7'
	12	#define MAXBUF 512
	13
	14	#define NORMAL 000
	15	#define ALTSET 001 /* Reverse */
	16	#define SUPERSC 002 /* Dim */
	17	#define SUBSC 004 /* Dim \| Ul */
	18	#define UNDERL 010 /* Ul */
	19	#define BOLD 020 /* Bold */
	20
	21	int must_use_uc, must_overstrike;
	22	char CURS_UP, CURS_RIGHT, *CURS_LEFT,
	23	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE, EXIT_UNDERLINE,
	24	ENTER_DIM, ENTER_BOLD, ENTER_REVERSE, UNDER_CHAR, *EXIT_ATTRIBUTES;
	25
	26	struct CHAR {
	27	char c_mode;
	28	char c_char;
	29	} ;
	30
2770968b	31	char buf[BUFSIZ];
94c88dd0 BJ	32
	33	struct CHAR obuf[MAXBUF];
	34	int col, maxcol;
	35	int mode;
	36	int halfpos;
	37	int upln;
	38	int iflag;
2770968b BJ	39
	40	main(argc, argv)
	41	int argc;
	42	char **argv;
	43	{
94c88dd0 BJ	44	int c;
94c88dd0 BJ	45	char cp, termtype;
2770968b	46	FILE *f;
94c88dd0 BJ	47	char termcap[1024];
	48	char *getenv();
	49	extern int optind;
	50	extern char *optarg;
2770968b	51
2770968b	52	termtype = getenv("TERM");
94c88dd0 BJ	53	if (termtype == NULL \|\| (argv[0][0] == 'c' && !isatty(1)))
	54	termtype = "lpr";
	55	while ((c=getopt(argc, argv, "it:T:")) != EOF)
	56	switch(c) {
2770968b BJ	57
	58	case 't':
	59	case 'T': /* for nroff compatibility */
94c88dd0	60	termtype = optarg;
2770968b BJ	61	break;
2770968b BJ	62	case 'i':
94c88dd0 BJ	63	iflag = 1;
94c88dd0 BJ	64	break;
2770968b BJ	65
2770968b BJ	66	default:
94c88dd0 BJ	67	fprintf(stderr,
	68	"Usage: %s [ -i ] [ -tTerm ] file...\n",
	69	argv[0]);
2770968b BJ	70	exit(1);
2770968b BJ	71	}
94c88dd0	72
2770968b BJ	73	switch(tgetent(termcap, termtype)) {
	74
	75	case 1:
2770968b BJ	76	break;
	77
	78	default:
	79	fprintf(stderr,"trouble reading termcap");
	80	/* fall through to ... */
	81
	82	case 0:
	83	/* No such terminal type - assume dumb */
94c88dd0	84	strcpy(termcap, "dumb:os:col#80:cr=^M:sf=^J:am:");
2770968b BJ	85	break;
2770968b BJ	86	}
94c88dd0 BJ	87	initcap();
	88	if ( (tgetflag("os") && ENTER_BOLD==NULL ) \|\|
	89	(tgetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL))
	90	must_overstrike = 1;
	91	setbuf(stdout, buf);
	92	initbuf();
	93	if (optind == argc)
2770968b	94	filter(stdin);
94c88dd0 BJ	95	else for (; optind<argc; optind++) {
94c88dd0 BJ	96	f = fopen(argv[optind],"r");
2770968b	97	if (f == NULL) {
94c88dd0	98	perror(argv[optind]);
2770968b BJ	99	exit(1);
	100	} else
	101	filter(f);
	102	}
	103	exit(0);
	104	}
	105
	106	filter(f)
	107	FILE *f;
	108	{
94c88dd0	109	register c;
2770968b	110
94c88dd0 BJ	111	while((c = getc(f)) != EOF) switch(c) {
	112
	113	case '\b':
	114	if (col > 0)
	115	col--;
	116	continue;
	117
	118	case '\t':
	119	col = (col+8) & ~07;
	120	if (col > maxcol)
	121	maxcol = col;
	122	continue;
	123
	124	case '\r':
	125	col = 0;
	126	continue;
	127
	128	case SO:
	129	mode \|= ALTSET;
	130	continue;
	131
	132	case SI:
	133	mode &= ~ALTSET;
	134	continue;
	135
	136	case IESC:
	137	switch (c = getc(f)) {
	138
	139	case HREV:
	140	if (halfpos == 0) {
	141	mode \|= SUPERSC;
	142	halfpos--;
	143	} else if (halfpos > 0) {
	144	mode &= ~SUBSC;
	145	halfpos--;
2770968b	146	} else {
94c88dd0 BJ	147	halfpos = 0;
94c88dd0 BJ	148	reverse();
2770968b	149	}
94c88dd0	150	continue;
2770968b	151
94c88dd0 BJ	152	case HFWD:
	153	if (halfpos == 0) {
	154	mode \|= SUBSC;
	155	halfpos++;
	156	} else if (halfpos < 0) {
	157	mode &= ~SUPERSC;
	158	halfpos++;
	159	} else {
	160	halfpos = 0;
	161	fwd();
2770968b	162	}
94c88dd0 BJ	163	continue;
	164
	165	case FREV:
	166	reverse();
	167	continue;
	168
	169	default:
	170	fprintf(stderr,
	171	"Unknown escape sequence in input: %o, %o\n",
	172	IESC, c);
	173	exit(1);
2770968b	174	}
94c88dd0 BJ	175	continue;
	176
	177	case '_':
	178	if (obuf[col].c_char)
	179	obuf[col].c_mode \|= UNDERL \| mode;
	180	else
	181	obuf[col].c_char = '_';
	182	case ' ':
	183	col++;
	184	if (col > maxcol)
	185	maxcol = col;
	186	continue;
	187
	188	case '\n':
	189	flushln();
	190
	191	default:
	192	if (c < ' ') /* non printing */
	193	continue;
	194	if (obuf[col].c_char == '\0') {
	195	obuf[col].c_char = c;
	196	obuf[col].c_mode = mode;
	197	} else if (obuf[col].c_char == '_') {
	198	obuf[col].c_char = c;
	199	obuf[col].c_mode \|= UNDERL\|mode;
	200	} else
	201	obuf[col].c_mode \|= BOLD\|mode;
	202	col++;
	203	if (col > maxcol)
	204	maxcol = col;
	205	continue;
2770968b	206	}
94c88dd0	207	flushln();
2770968b BJ	208	}
2770968b BJ	209
94c88dd0	210	flushln()
2770968b	211	{
94c88dd0 BJ	212	register lastmode;
	213	register i;
	214	int hadmodes = 0;
	215
	216	lastmode = NORMAL;
	217	for (i=0; i<maxcol; i++) {
	218	if (obuf[i].c_mode != lastmode) {
	219	hadmodes++;
	220	setmode(obuf[i].c_mode);
	221	lastmode = obuf[i].c_mode;
	222	}
	223	if (obuf[i].c_char == '\0') {
	224	if (upln) {
	225	puts(CURS_RIGHT);
	226	} else
	227	outc(' ');
	228	} else
	229	outc(obuf[i].c_char);
	230	}
	231	if (lastmode != NORMAL) {
	232	setmode(0);
	233	}
	234	if (must_overstrike && hadmodes)
	235	overstrike();
	236	putchar('\n');
	237	if (iflag && hadmodes)
	238	iattr();
	239	fflush(stdout);
	240	if (upln)
	241	upln--;
	242	initbuf();
2770968b BJ	243	}
2770968b BJ	244
94c88dd0 BJ	245	/*
	246	* For terminals that can overstrike, overstrike underlines and bolds.
	247	* We don't do anything with halfline ups and downs, or Greek.
	248	*/
	249	overstrike()
	250	{
	251	register int i;
	252	char lbuf[256];
	253	register char *cp = lbuf;
	254	int hadbold=0;
2770968b	255
94c88dd0 BJ	256	/* Set up overstrike buffer */
	257	for (i=0; i<maxcol; i++)
	258	switch (obuf[i].c_mode) {
	259	case NORMAL:
	260	default:
	261	*cp++ = ' ';
	262	break;
	263	case UNDERL:
	264	*cp++ = '_';
	265	break;
	266	case BOLD:
	267	*cp++ = obuf[i].c_char;
	268	hadbold=1;
	269	break;
	270	}
	271	putchar('\r');
	272	for (cp=' '; cp==' '; cp--)
	273	*cp = 0;
	274	for (cp=lbuf; *cp; cp++)
	275	putchar(*cp);
	276	if (hadbold) {
	277	putchar('\r');
	278	for (cp=lbuf; *cp; cp++)
	279	putchar(cp=='_' ? ' ' : cp);
	280	putchar('\r');
	281	for (cp=lbuf; *cp; cp++)
	282	putchar(cp=='_' ? ' ' : cp);
	283	}
	284	}
2770968b	285
94c88dd0	286	iattr()
2770968b	287	{
94c88dd0 BJ	288	register int i;
	289	char lbuf[256];
	290	register char *cp = lbuf;
2770968b	291
94c88dd0 BJ	292	for (i=0; i<maxcol; i++)
	293	switch (obuf[i].c_mode) {
	294	case NORMAL: *cp++ = ' '; break;
	295	case ALTSET: *cp++ = 'g'; break;
	296	case SUPERSC: *cp++ = '^'; break;
	297	case SUBSC: *cp++ = 'v'; break;
	298	case UNDERL: *cp++ = '_'; break;
	299	case BOLD: *cp++ = '!'; break;
	300	default: *cp++ = 'X'; break;
2770968b	301	}
94c88dd0 BJ	302	for (cp=' '; cp==' '; cp--)
	303	*cp = 0;
	304	for (cp=lbuf; *cp; cp++)
	305	putchar(*cp);
	306	putchar('\n');
2770968b BJ	307	}
2770968b BJ	308
94c88dd0	309	initbuf()
2770968b	310	{
94c88dd0	311	register i;
2770968b	312
94c88dd0 BJ	313	for (i=0; i<MAXBUF; i++) {
	314	obuf[i].c_char = '\0';
	315	obuf[i].c_mode = NORMAL;
2770968b	316	}
94c88dd0 BJ	317	col = 0;
	318	maxcol = 0;
	319	mode &= ALTSET;
2770968b BJ	320	}
2770968b BJ	321
94c88dd0	322	fwd()
2770968b	323	{
94c88dd0	324	register oldcol, oldmax;
2770968b	325
94c88dd0 BJ	326	oldcol = col;
	327	oldmax = maxcol;
	328	flushln();
	329	col = oldcol;
	330	maxcol = oldmax;
	331	}
	332
	333	reverse()
	334	{
	335	upln++;
	336	fwd();
	337	puts(CURS_UP);
	338	puts(CURS_UP);
	339	upln++;
	340	}
	341
	342	initcap()
	343	{
	344	static char tcapbuf[512];
	345	char *termtype;
	346	char *bp = tcapbuf;
	347	char getenv(), tgetstr();
	348
	349	/* This nonsense attempts to work with both old and new termcap */
	350	CURS_UP = tgetstr("up", &bp);
	351	CURS_RIGHT = tgetstr("ri", &bp);
	352	if (CURS_RIGHT == NULL)
	353	CURS_RIGHT = tgetstr("nd", &bp);
	354	CURS_LEFT = tgetstr("le", &bp);
	355	if (CURS_LEFT == NULL)
	356	CURS_LEFT = tgetstr("bc", &bp);
	357	if (CURS_LEFT == NULL && tgetflag("bs"))
	358	CURS_LEFT = "\b";
	359
	360	ENTER_STANDOUT = tgetstr("so", &bp);
	361	EXIT_STANDOUT = tgetstr("se", &bp);
	362	ENTER_UNDERLINE = tgetstr("us", &bp);
	363	EXIT_UNDERLINE = tgetstr("ue", &bp);
	364	ENTER_DIM = tgetstr("mh", &bp);
	365	ENTER_BOLD = tgetstr("md", &bp);
	366	ENTER_REVERSE = tgetstr("mr", &bp);
	367	EXIT_ATTRIBUTES = tgetstr("me", &bp);
	368
	369	if (!ENTER_BOLD && ENTER_REVERSE)
	370	ENTER_BOLD = ENTER_REVERSE;
	371	if (!ENTER_BOLD && ENTER_STANDOUT)
	372	ENTER_BOLD = ENTER_STANDOUT;
	373	if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
	374	ENTER_UNDERLINE = ENTER_STANDOUT;
	375	EXIT_UNDERLINE = EXIT_STANDOUT;
	376	}
	377	if (!ENTER_DIM && ENTER_STANDOUT)
	378	ENTER_DIM = ENTER_STANDOUT;
	379	if (!ENTER_REVERSE && ENTER_STANDOUT)
	380	ENTER_REVERSE = ENTER_STANDOUT;
	381	if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
	382	EXIT_ATTRIBUTES = EXIT_STANDOUT;
	383
	384	/*
	385	* Note that we use REVERSE for the alternate character set,
	386	* not the as/ae capabilities. This is because we are modelling
	387	* the model 37 teletype (since that's what nroff outputs) and
	388	* the typical as/ae is more of a graphics set, not the greek
	389	* letters the 37 has.
390	*/
391
392	#ifdef notdef
393	printf("so %s se %s us %s ue %s me %s\n",
394	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE,
395	EXIT_UNDERLINE, EXIT_ATTRIBUTES);
396	#endif
397	UNDER_CHAR = tgetstr("uc", &bp);
398	must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
399	}
400
401	outchar(c)
402	char c;
403	{
404	putchar(c&0177);
405	}
406
407	puts(str)
408	char *str;
409	{
410	if (str)
411	tputs(str, 1, outchar);
412	}
413
414	static curmode = 0;
415	outc(c)
416	char c;
417	{
418	putchar(c);
419	if (must_use_uc && (curmode&UNDERL)) {
420	puts(CURS_LEFT);
421	puts(UNDER_CHAR);
422	}
423	}
424
425	setmode(newmode)
426	int newmode;
427	{
428	if (!iflag)
a7878ce2 BJ	429	{
	430	if (curmode != NORMAL && newmode != NORMAL)
	431	setmode(NORMAL);
94c88dd0 BJ	432	switch (newmode) {
	433	case NORMAL:
	434	switch(curmode) {
	435	case NORMAL:
2770968b	436	break;
94c88dd0 BJ	437	case UNDERL:
94c88dd0 BJ	438	puts(EXIT_UNDERLINE);
2770968b	439	break;
94c88dd0 BJ	440	default:
	441	/* This includes standout */
	442	puts(EXIT_ATTRIBUTES);
2770968b	443	break;
94c88dd0 BJ	444	}
	445	break;
	446	case ALTSET:
	447	puts(ENTER_REVERSE);
	448	break;
	449	case SUPERSC:
	450	/*
	451	* This only works on a few terminals.
	452	* It should be fixed.
	453	*/
	454	puts(ENTER_UNDERLINE);
	455	puts(ENTER_DIM);
	456	break;
	457	case SUBSC:
	458	puts(ENTER_DIM);
	459	break;
	460	case UNDERL:
	461	puts(ENTER_UNDERLINE);
	462	break;
	463	case BOLD:
	464	puts(ENTER_BOLD);
	465	break;
	466	default:
	467	/*
	468	* We should have some provision here for multiple modes
	469	* on at once. This will have to come later.
	470	*/
	471	puts(ENTER_STANDOUT);
	472	break;
2770968b	473	}
a7878ce2	474	}
94c88dd0 BJ	475	curmode = newmode;
	476	}
	477	/* @(#)getopt.c 3.2 */
	478	#define ERR(s, c) if(opterr){\
	479	fputs(argv[0], stderr);\
	480	fputs(s, stderr);\
	481	fputc(c, stderr);\
	482	fputc('\n', stderr);}
	483
	484	int opterr = 1;
	485	int optind = 1;
	486	char *optarg;
	487	char *index();
	488
	489	int
	490	getopt (argc, argv, opts)
	491	char *argv, opts;
	492	{
	493	static int sp = 1;
	494	char c;
	495	char *cp;
	496
	497	if (sp == 1)
	498	if (optind >= argc \|\|
	499	argv[optind][0] != '-' \|\| argv[optind][1] == '\0')
	500	return EOF;
	501	else if (strcmp(argv[optind], "--") == NULL) {
	502	optind++;
	503	return EOF;
2770968b	504	}
94c88dd0 BJ	505	else if (strcmp(argv[optind], "-?") == NULL) {
	506	optind++;
	507	return '?';
	508	}
	509	c = argv[optind][sp];
	510	if (c == ':' \|\| (cp=index(opts, c)) == NULL) {
	511	ERR (": illegal option -- ", c);
	512	if (argv[optind][++sp] == '\0') {
	513	optind++;
	514	sp = 1;
	515	}
	516	return '?';
2770968b	517	}
94c88dd0 BJ	518	if (*++cp == ':') {
	519	if (argv[optind][2] != '\0')
	520	optarg = &argv[optind++][sp+1];
	521	else if (++optind >= argc) {
	522	ERR (": option requires an argument -- ", c);
	523	sp = 1;
	524	return '?';
2770968b	525	} else
94c88dd0 BJ	526	optarg = argv[optind++];
	527	sp = 1;
	528	}
	529	else if (argv[optind][++sp] == '\0') {
	530	sp = 1;
	531	optind++;
	532	}
	533	return c;
2770968b	534	}