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

#ifndef lint
static char sccsid[] =	"@(#)ul.c	4.5 (Berkeley) %G%";
#endif

#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();
		continue;

	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 if (obuf[col].c_char == c)
			obuf[col].c_mode |= BOLD|mode;
		else {
			obuf[col].c_mode = c;
			obuf[col].c_mode = mode;
		}
		col++;
		if (col > maxcol)
			maxcol = col;
		continue;
	}
	if (maxcol)
		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
476fcd16 SL	1	#ifndef lint
	2	static char sccsid[] = "@(#)ul.c 4.5 (Berkeley) %G%";
	3	#endif
a7878ce2	4
2770968b BJ	5	#include <stdio.h>
2770968b BJ	6
94c88dd0 BJ	7	#define IESC '\033'
	8	#define SO '\016'
	9	#define SI '\017'
	10	#define HFWD '9'
	11	#define HREV '8'
	12	#define FREV '7'
	13	#define MAXBUF 512
	14
	15	#define NORMAL 000
	16	#define ALTSET 001 /* Reverse */
	17	#define SUPERSC 002 /* Dim */
	18	#define SUBSC 004 /* Dim \| Ul */
	19	#define UNDERL 010 /* Ul */
	20	#define BOLD 020 /* Bold */
	21
	22	int must_use_uc, must_overstrike;
	23	char CURS_UP, CURS_RIGHT, *CURS_LEFT,
	24	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE, EXIT_UNDERLINE,
	25	ENTER_DIM, ENTER_BOLD, ENTER_REVERSE, UNDER_CHAR, *EXIT_ATTRIBUTES;
	26
	27	struct CHAR {
	28	char c_mode;
	29	char c_char;
	30	} ;
	31
2770968b	32	char buf[BUFSIZ];
94c88dd0 BJ	33
	34	struct CHAR obuf[MAXBUF];
	35	int col, maxcol;
	36	int mode;
	37	int halfpos;
	38	int upln;
	39	int iflag;
2770968b BJ	40
	41	main(argc, argv)
	42	int argc;
	43	char **argv;
	44	{
94c88dd0 BJ	45	int c;
94c88dd0 BJ	46	char cp, termtype;
2770968b	47	FILE *f;
94c88dd0 BJ	48	char termcap[1024];
	49	char *getenv();
	50	extern int optind;
	51	extern char *optarg;
2770968b	52
2770968b	53	termtype = getenv("TERM");
94c88dd0 BJ	54	if (termtype == NULL \|\| (argv[0][0] == 'c' && !isatty(1)))
	55	termtype = "lpr";
	56	while ((c=getopt(argc, argv, "it:T:")) != EOF)
	57	switch(c) {
2770968b BJ	58
	59	case 't':
	60	case 'T': /* for nroff compatibility */
94c88dd0	61	termtype = optarg;
2770968b BJ	62	break;
2770968b BJ	63	case 'i':
94c88dd0 BJ	64	iflag = 1;
94c88dd0 BJ	65	break;
2770968b BJ	66
2770968b BJ	67	default:
94c88dd0 BJ	68	fprintf(stderr,
	69	"Usage: %s [ -i ] [ -tTerm ] file...\n",
	70	argv[0]);
2770968b BJ	71	exit(1);
2770968b BJ	72	}
94c88dd0	73
2770968b BJ	74	switch(tgetent(termcap, termtype)) {
	75
	76	case 1:
2770968b BJ	77	break;
	78
	79	default:
	80	fprintf(stderr,"trouble reading termcap");
	81	/* fall through to ... */
	82
	83	case 0:
	84	/* No such terminal type - assume dumb */
94c88dd0	85	strcpy(termcap, "dumb:os:col#80:cr=^M:sf=^J:am:");
2770968b BJ	86	break;
2770968b BJ	87	}
94c88dd0 BJ	88	initcap();
	89	if ( (tgetflag("os") && ENTER_BOLD==NULL ) \|\|
	90	(tgetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL))
	91	must_overstrike = 1;
	92	setbuf(stdout, buf);
	93	initbuf();
	94	if (optind == argc)
2770968b	95	filter(stdin);
94c88dd0 BJ	96	else for (; optind<argc; optind++) {
94c88dd0 BJ	97	f = fopen(argv[optind],"r");
2770968b	98	if (f == NULL) {
94c88dd0	99	perror(argv[optind]);
2770968b BJ	100	exit(1);
	101	} else
	102	filter(f);
	103	}
	104	exit(0);
	105	}
	106
	107	filter(f)
	108	FILE *f;
	109	{
94c88dd0	110	register c;
2770968b	111
94c88dd0 BJ	112	while((c = getc(f)) != EOF) switch(c) {
	113
	114	case '\b':
	115	if (col > 0)
	116	col--;
	117	continue;
	118
	119	case '\t':
	120	col = (col+8) & ~07;
	121	if (col > maxcol)
	122	maxcol = col;
	123	continue;
	124
	125	case '\r':
	126	col = 0;
	127	continue;
	128
	129	case SO:
	130	mode \|= ALTSET;
	131	continue;
	132
	133	case SI:
	134	mode &= ~ALTSET;
	135	continue;
	136
	137	case IESC:
	138	switch (c = getc(f)) {
	139
	140	case HREV:
	141	if (halfpos == 0) {
	142	mode \|= SUPERSC;
	143	halfpos--;
	144	} else if (halfpos > 0) {
	145	mode &= ~SUBSC;
	146	halfpos--;
2770968b	147	} else {
94c88dd0 BJ	148	halfpos = 0;
94c88dd0 BJ	149	reverse();
2770968b	150	}
94c88dd0	151	continue;
2770968b	152
94c88dd0 BJ	153	case HFWD:
	154	if (halfpos == 0) {
	155	mode \|= SUBSC;
	156	halfpos++;
	157	} else if (halfpos < 0) {
	158	mode &= ~SUPERSC;
	159	halfpos++;
	160	} else {
	161	halfpos = 0;
	162	fwd();
2770968b	163	}
94c88dd0 BJ	164	continue;
	165
	166	case FREV:
	167	reverse();
	168	continue;
	169
	170	default:
	171	fprintf(stderr,
	172	"Unknown escape sequence in input: %o, %o\n",
	173	IESC, c);
	174	exit(1);
2770968b	175	}
94c88dd0 BJ	176	continue;
	177
	178	case '_':
	179	if (obuf[col].c_char)
	180	obuf[col].c_mode \|= UNDERL \| mode;
	181	else
	182	obuf[col].c_char = '_';
	183	case ' ':
	184	col++;
	185	if (col > maxcol)
	186	maxcol = col;
	187	continue;
	188
	189	case '\n':
	190	flushln();
5041df75	191	continue;
94c88dd0 BJ	192
	193	default:
	194	if (c < ' ') /* non printing */
	195	continue;
	196	if (obuf[col].c_char == '\0') {
	197	obuf[col].c_char = c;
	198	obuf[col].c_mode = mode;
	199	} else if (obuf[col].c_char == '_') {
	200	obuf[col].c_char = c;
	201	obuf[col].c_mode \|= UNDERL\|mode;
5041df75	202	} else if (obuf[col].c_char == c)
94c88dd0	203	obuf[col].c_mode \|= BOLD\|mode;
5041df75 RC	204	else {
	205	obuf[col].c_mode = c;
	206	obuf[col].c_mode = mode;
	207	}
94c88dd0 BJ	208	col++;
	209	if (col > maxcol)
	210	maxcol = col;
	211	continue;
2770968b	212	}
5041df75 RC	213	if (maxcol)
5041df75 RC	214	flushln();
2770968b BJ	215	}
2770968b BJ	216
94c88dd0	217	flushln()
2770968b	218	{
94c88dd0 BJ	219	register lastmode;
	220	register i;
	221	int hadmodes = 0;
	222
	223	lastmode = NORMAL;
	224	for (i=0; i<maxcol; i++) {
	225	if (obuf[i].c_mode != lastmode) {
	226	hadmodes++;
	227	setmode(obuf[i].c_mode);
	228	lastmode = obuf[i].c_mode;
	229	}
	230	if (obuf[i].c_char == '\0') {
	231	if (upln) {
	232	puts(CURS_RIGHT);
	233	} else
	234	outc(' ');
	235	} else
	236	outc(obuf[i].c_char);
	237	}
	238	if (lastmode != NORMAL) {
	239	setmode(0);
	240	}
	241	if (must_overstrike && hadmodes)
	242	overstrike();
	243	putchar('\n');
	244	if (iflag && hadmodes)
	245	iattr();
	246	fflush(stdout);
	247	if (upln)
	248	upln--;
	249	initbuf();
2770968b BJ	250	}
2770968b BJ	251
94c88dd0 BJ	252	/*
	253	* For terminals that can overstrike, overstrike underlines and bolds.
	254	* We don't do anything with halfline ups and downs, or Greek.
	255	*/
	256	overstrike()
	257	{
	258	register int i;
	259	char lbuf[256];
	260	register char *cp = lbuf;
	261	int hadbold=0;
2770968b	262
94c88dd0 BJ	263	/* Set up overstrike buffer */
	264	for (i=0; i<maxcol; i++)
	265	switch (obuf[i].c_mode) {
	266	case NORMAL:
	267	default:
	268	*cp++ = ' ';
	269	break;
	270	case UNDERL:
	271	*cp++ = '_';
	272	break;
	273	case BOLD:
	274	*cp++ = obuf[i].c_char;
	275	hadbold=1;
	276	break;
	277	}
	278	putchar('\r');
	279	for (cp=' '; cp==' '; cp--)
	280	*cp = 0;
	281	for (cp=lbuf; *cp; cp++)
	282	putchar(*cp);
	283	if (hadbold) {
	284	putchar('\r');
	285	for (cp=lbuf; *cp; cp++)
	286	putchar(cp=='_' ? ' ' : cp);
	287	putchar('\r');
	288	for (cp=lbuf; *cp; cp++)
	289	putchar(cp=='_' ? ' ' : cp);
	290	}
	291	}
2770968b	292
94c88dd0	293	iattr()
2770968b	294	{
94c88dd0 BJ	295	register int i;
	296	char lbuf[256];
	297	register char *cp = lbuf;
2770968b	298
94c88dd0 BJ	299	for (i=0; i<maxcol; i++)
	300	switch (obuf[i].c_mode) {
	301	case NORMAL: *cp++ = ' '; break;
	302	case ALTSET: *cp++ = 'g'; break;
	303	case SUPERSC: *cp++ = '^'; break;
	304	case SUBSC: *cp++ = 'v'; break;
	305	case UNDERL: *cp++ = '_'; break;
	306	case BOLD: *cp++ = '!'; break;
	307	default: *cp++ = 'X'; break;
2770968b	308	}
94c88dd0 BJ	309	for (cp=' '; cp==' '; cp--)
	310	*cp = 0;
	311	for (cp=lbuf; *cp; cp++)
	312	putchar(*cp);
	313	putchar('\n');
2770968b BJ	314	}
2770968b BJ	315
94c88dd0	316	initbuf()
2770968b	317	{
94c88dd0	318	register i;
2770968b	319
94c88dd0 BJ	320	for (i=0; i<MAXBUF; i++) {
	321	obuf[i].c_char = '\0';
	322	obuf[i].c_mode = NORMAL;
2770968b	323	}
94c88dd0 BJ	324	col = 0;
	325	maxcol = 0;
	326	mode &= ALTSET;
2770968b BJ	327	}
2770968b BJ	328
94c88dd0	329	fwd()
2770968b	330	{
94c88dd0	331	register oldcol, oldmax;
2770968b	332
94c88dd0 BJ	333	oldcol = col;
	334	oldmax = maxcol;
	335	flushln();
	336	col = oldcol;
	337	maxcol = oldmax;
	338	}
	339
	340	reverse()
	341	{
	342	upln++;
	343	fwd();
	344	puts(CURS_UP);
	345	puts(CURS_UP);
	346	upln++;
	347	}
	348
	349	initcap()
	350	{
	351	static char tcapbuf[512];
	352	char *termtype;
	353	char *bp = tcapbuf;
	354	char getenv(), tgetstr();
	355
	356	/* This nonsense attempts to work with both old and new termcap */
	357	CURS_UP = tgetstr("up", &bp);
	358	CURS_RIGHT = tgetstr("ri", &bp);
	359	if (CURS_RIGHT == NULL)
	360	CURS_RIGHT = tgetstr("nd", &bp);
	361	CURS_LEFT = tgetstr("le", &bp);
	362	if (CURS_LEFT == NULL)
	363	CURS_LEFT = tgetstr("bc", &bp);
	364	if (CURS_LEFT == NULL && tgetflag("bs"))
	365	CURS_LEFT = "\b";
	366
	367	ENTER_STANDOUT = tgetstr("so", &bp);
	368	EXIT_STANDOUT = tgetstr("se", &bp);
	369	ENTER_UNDERLINE = tgetstr("us", &bp);
	370	EXIT_UNDERLINE = tgetstr("ue", &bp);
	371	ENTER_DIM = tgetstr("mh", &bp);
	372	ENTER_BOLD = tgetstr("md", &bp);
	373	ENTER_REVERSE = tgetstr("mr", &bp);
	374	EXIT_ATTRIBUTES = tgetstr("me", &bp);
	375
	376	if (!ENTER_BOLD && ENTER_REVERSE)
	377	ENTER_BOLD = ENTER_REVERSE;
	378	if (!ENTER_BOLD && ENTER_STANDOUT)
	379	ENTER_BOLD = ENTER_STANDOUT;
	380	if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
	381	ENTER_UNDERLINE = ENTER_STANDOUT;
	382	EXIT_UNDERLINE = EXIT_STANDOUT;
	383	}
	384	if (!ENTER_DIM && ENTER_STANDOUT)
	385	ENTER_DIM = ENTER_STANDOUT;
	386	if (!ENTER_REVERSE && ENTER_STANDOUT)
	387	ENTER_REVERSE = ENTER_STANDOUT;
	388	if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
	389	EXIT_ATTRIBUTES = EXIT_STANDOUT;
	390
	391	/*
	392	* Note that we use REVERSE for the alternate character set,
	393	* not the as/ae capabilities. This is because we are modelling
	394	* the model 37 teletype (since that's what nroff outputs) and
	395	* the typical as/ae is more of a graphics set, not the greek
	396	* letters the 37 has.
397	*/
398
399	#ifdef notdef
400	printf("so %s se %s us %s ue %s me %s\n",
401	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE,
402	EXIT_UNDERLINE, EXIT_ATTRIBUTES);
403	#endif
404	UNDER_CHAR = tgetstr("uc", &bp);
405	must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
406	}
407
408	outchar(c)
409	char c;
410	{
411	putchar(c&0177);
412	}
413
414	puts(str)
415	char *str;
416	{
417	if (str)
418	tputs(str, 1, outchar);
419	}
420
421	static curmode = 0;
422	outc(c)
423	char c;
424	{
425	putchar(c);
426	if (must_use_uc && (curmode&UNDERL)) {
427	puts(CURS_LEFT);
428	puts(UNDER_CHAR);
429	}
430	}
431
432	setmode(newmode)
433	int newmode;
434	{
435	if (!iflag)
a7878ce2 BJ	436	{
	437	if (curmode != NORMAL && newmode != NORMAL)
	438	setmode(NORMAL);
94c88dd0 BJ	439	switch (newmode) {
	440	case NORMAL:
	441	switch(curmode) {
	442	case NORMAL:
2770968b	443	break;
94c88dd0 BJ	444	case UNDERL:
94c88dd0 BJ	445	puts(EXIT_UNDERLINE);
2770968b	446	break;
94c88dd0 BJ	447	default:
	448	/* This includes standout */
	449	puts(EXIT_ATTRIBUTES);
2770968b	450	break;
94c88dd0 BJ	451	}
	452	break;
	453	case ALTSET:
	454	puts(ENTER_REVERSE);
	455	break;
	456	case SUPERSC:
	457	/*
	458	* This only works on a few terminals.
	459	* It should be fixed.
	460	*/
	461	puts(ENTER_UNDERLINE);
	462	puts(ENTER_DIM);
	463	break;
	464	case SUBSC:
	465	puts(ENTER_DIM);
	466	break;
	467	case UNDERL:
	468	puts(ENTER_UNDERLINE);
	469	break;
	470	case BOLD:
	471	puts(ENTER_BOLD);
	472	break;
	473	default:
	474	/*
	475	* We should have some provision here for multiple modes
	476	* on at once. This will have to come later.
	477	*/
	478	puts(ENTER_STANDOUT);
	479	break;
2770968b	480	}
a7878ce2	481	}
94c88dd0 BJ	482	curmode = newmode;
	483	}
	484	/* @(#)getopt.c 3.2 */
	485	#define ERR(s, c) if(opterr){\
	486	fputs(argv[0], stderr);\
	487	fputs(s, stderr);\
	488	fputc(c, stderr);\
	489	fputc('\n', stderr);}
	490
	491	int opterr = 1;
	492	int optind = 1;
	493	char *optarg;
	494	char *index();
	495
	496	int
	497	getopt (argc, argv, opts)
	498	char *argv, opts;
	499	{
	500	static int sp = 1;
	501	char c;
	502	char *cp;
	503
	504	if (sp == 1)
	505	if (optind >= argc \|\|
	506	argv[optind][0] != '-' \|\| argv[optind][1] == '\0')
	507	return EOF;
	508	else if (strcmp(argv[optind], "--") == NULL) {
	509	optind++;
	510	return EOF;
2770968b	511	}
94c88dd0 BJ	512	else if (strcmp(argv[optind], "-?") == NULL) {
	513	optind++;
	514	return '?';
	515	}
	516	c = argv[optind][sp];
	517	if (c == ':' \|\| (cp=index(opts, c)) == NULL) {
	518	ERR (": illegal option -- ", c);
	519	if (argv[optind][++sp] == '\0') {
	520	optind++;
	521	sp = 1;
	522	}
	523	return '?';
2770968b	524	}
94c88dd0 BJ	525	if (*++cp == ':') {
	526	if (argv[optind][2] != '\0')
	527	optarg = &argv[optind++][sp+1];
	528	else if (++optind >= argc) {
	529	ERR (": option requires an argument -- ", c);
	530	sp = 1;
	531	return '?';
2770968b	532	} else
94c88dd0 BJ	533	optarg = argv[optind++];
	534	sp = 1;
	535	}
	536	else if (argv[optind][++sp] == '\0') {
	537	sp = 1;
	538	optind++;
	539	}
	540	return c;
2770968b	541	}