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

/*	@(#)ul.c	4.4	%G%	*/
static char SccsId[] =	"@(#)ul.c	4.4 (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();
		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
5041df75 RC	1	/* @(#)ul.c 4.4 %G% */
5041df75 RC	2	static char SccsId[] = "@(#)ul.c 4.4 (Berkeley) %G%";
a7878ce2	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();
5041df75	190	continue;
94c88dd0 BJ	191
	192	default:
	193	if (c < ' ') /* non printing */
	194	continue;
	195	if (obuf[col].c_char == '\0') {
	196	obuf[col].c_char = c;
	197	obuf[col].c_mode = mode;
	198	} else if (obuf[col].c_char == '_') {
	199	obuf[col].c_char = c;
	200	obuf[col].c_mode \|= UNDERL\|mode;
5041df75	201	} else if (obuf[col].c_char == c)
94c88dd0	202	obuf[col].c_mode \|= BOLD\|mode;
5041df75 RC	203	else {
	204	obuf[col].c_mode = c;
	205	obuf[col].c_mode = mode;
	206	}
94c88dd0 BJ	207	col++;
	208	if (col > maxcol)
	209	maxcol = col;
	210	continue;
2770968b	211	}
5041df75 RC	212	if (maxcol)
5041df75 RC	213	flushln();
2770968b BJ	214	}
2770968b BJ	215
94c88dd0	216	flushln()
2770968b	217	{
94c88dd0 BJ	218	register lastmode;
	219	register i;
	220	int hadmodes = 0;
	221
	222	lastmode = NORMAL;
	223	for (i=0; i<maxcol; i++) {
	224	if (obuf[i].c_mode != lastmode) {
	225	hadmodes++;
	226	setmode(obuf[i].c_mode);
	227	lastmode = obuf[i].c_mode;
	228	}
	229	if (obuf[i].c_char == '\0') {
	230	if (upln) {
	231	puts(CURS_RIGHT);
	232	} else
	233	outc(' ');
	234	} else
	235	outc(obuf[i].c_char);
	236	}
	237	if (lastmode != NORMAL) {
	238	setmode(0);
	239	}
	240	if (must_overstrike && hadmodes)
	241	overstrike();
	242	putchar('\n');
	243	if (iflag && hadmodes)
	244	iattr();
	245	fflush(stdout);
	246	if (upln)
	247	upln--;
	248	initbuf();
2770968b BJ	249	}
2770968b BJ	250
94c88dd0 BJ	251	/*
	252	* For terminals that can overstrike, overstrike underlines and bolds.
	253	* We don't do anything with halfline ups and downs, or Greek.
	254	*/
	255	overstrike()
	256	{
	257	register int i;
	258	char lbuf[256];
	259	register char *cp = lbuf;
	260	int hadbold=0;
2770968b	261
94c88dd0 BJ	262	/* Set up overstrike buffer */
	263	for (i=0; i<maxcol; i++)
	264	switch (obuf[i].c_mode) {
	265	case NORMAL:
	266	default:
	267	*cp++ = ' ';
	268	break;
	269	case UNDERL:
	270	*cp++ = '_';
	271	break;
	272	case BOLD:
	273	*cp++ = obuf[i].c_char;
	274	hadbold=1;
	275	break;
	276	}
	277	putchar('\r');
	278	for (cp=' '; cp==' '; cp--)
	279	*cp = 0;
	280	for (cp=lbuf; *cp; cp++)
	281	putchar(*cp);
	282	if (hadbold) {
	283	putchar('\r');
	284	for (cp=lbuf; *cp; cp++)
	285	putchar(cp=='_' ? ' ' : cp);
	286	putchar('\r');
	287	for (cp=lbuf; *cp; cp++)
	288	putchar(cp=='_' ? ' ' : cp);
	289	}
	290	}
2770968b	291
94c88dd0	292	iattr()
2770968b	293	{
94c88dd0 BJ	294	register int i;
	295	char lbuf[256];
	296	register char *cp = lbuf;
2770968b	297
94c88dd0 BJ	298	for (i=0; i<maxcol; i++)
	299	switch (obuf[i].c_mode) {
	300	case NORMAL: *cp++ = ' '; break;
	301	case ALTSET: *cp++ = 'g'; break;
	302	case SUPERSC: *cp++ = '^'; break;
	303	case SUBSC: *cp++ = 'v'; break;
	304	case UNDERL: *cp++ = '_'; break;
	305	case BOLD: *cp++ = '!'; break;
	306	default: *cp++ = 'X'; break;
2770968b	307	}
94c88dd0 BJ	308	for (cp=' '; cp==' '; cp--)
	309	*cp = 0;
	310	for (cp=lbuf; *cp; cp++)
	311	putchar(*cp);
	312	putchar('\n');
2770968b BJ	313	}
2770968b BJ	314
94c88dd0	315	initbuf()
2770968b	316	{
94c88dd0	317	register i;
2770968b	318
94c88dd0 BJ	319	for (i=0; i<MAXBUF; i++) {
	320	obuf[i].c_char = '\0';
	321	obuf[i].c_mode = NORMAL;
2770968b	322	}
94c88dd0 BJ	323	col = 0;
	324	maxcol = 0;
	325	mode &= ALTSET;
2770968b BJ	326	}
2770968b BJ	327
94c88dd0	328	fwd()
2770968b	329	{
94c88dd0	330	register oldcol, oldmax;
2770968b	331
94c88dd0 BJ	332	oldcol = col;
	333	oldmax = maxcol;
	334	flushln();
	335	col = oldcol;
	336	maxcol = oldmax;
	337	}
	338
	339	reverse()
	340	{
	341	upln++;
	342	fwd();
	343	puts(CURS_UP);
	344	puts(CURS_UP);
	345	upln++;
	346	}
	347
	348	initcap()
	349	{
	350	static char tcapbuf[512];
	351	char *termtype;
	352	char *bp = tcapbuf;
	353	char getenv(), tgetstr();
	354
	355	/* This nonsense attempts to work with both old and new termcap */
	356	CURS_UP = tgetstr("up", &bp);
	357	CURS_RIGHT = tgetstr("ri", &bp);
	358	if (CURS_RIGHT == NULL)
	359	CURS_RIGHT = tgetstr("nd", &bp);
	360	CURS_LEFT = tgetstr("le", &bp);
	361	if (CURS_LEFT == NULL)
	362	CURS_LEFT = tgetstr("bc", &bp);
	363	if (CURS_LEFT == NULL && tgetflag("bs"))
	364	CURS_LEFT = "\b";
	365
	366	ENTER_STANDOUT = tgetstr("so", &bp);
	367	EXIT_STANDOUT = tgetstr("se", &bp);
	368	ENTER_UNDERLINE = tgetstr("us", &bp);
	369	EXIT_UNDERLINE = tgetstr("ue", &bp);
	370	ENTER_DIM = tgetstr("mh", &bp);
	371	ENTER_BOLD = tgetstr("md", &bp);
	372	ENTER_REVERSE = tgetstr("mr", &bp);
	373	EXIT_ATTRIBUTES = tgetstr("me", &bp);
	374
	375	if (!ENTER_BOLD && ENTER_REVERSE)
	376	ENTER_BOLD = ENTER_REVERSE;
	377	if (!ENTER_BOLD && ENTER_STANDOUT)
	378	ENTER_BOLD = ENTER_STANDOUT;
	379	if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
	380	ENTER_UNDERLINE = ENTER_STANDOUT;
	381	EXIT_UNDERLINE = EXIT_STANDOUT;
	382	}
	383	if (!ENTER_DIM && ENTER_STANDOUT)
	384	ENTER_DIM = ENTER_STANDOUT;
	385	if (!ENTER_REVERSE && ENTER_STANDOUT)
	386	ENTER_REVERSE = ENTER_STANDOUT;
	387	if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
	388	EXIT_ATTRIBUTES = EXIT_STANDOUT;
	389
	390	/*
	391	* Note that we use REVERSE for the alternate character set,
	392	* not the as/ae capabilities. This is because we are modelling
	393	* the model 37 teletype (since that's what nroff outputs) and
	394	* the typical as/ae is more of a graphics set, not the greek
	395	* letters the 37 has.
396	*/
397
398	#ifdef notdef
399	printf("so %s se %s us %s ue %s me %s\n",
400	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE,
401	EXIT_UNDERLINE, EXIT_ATTRIBUTES);
402	#endif
403	UNDER_CHAR = tgetstr("uc", &bp);
404	must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
405	}
406
407	outchar(c)
408	char c;
409	{
410	putchar(c&0177);
411	}
412
413	puts(str)
414	char *str;
415	{
416	if (str)
417	tputs(str, 1, outchar);
418	}
419
420	static curmode = 0;
421	outc(c)
422	char c;
423	{
424	putchar(c);
425	if (must_use_uc && (curmode&UNDERL)) {
426	puts(CURS_LEFT);
427	puts(UNDER_CHAR);
428	}
429	}
430
431	setmode(newmode)
432	int newmode;
433	{
434	if (!iflag)
a7878ce2 BJ	435	{
	436	if (curmode != NORMAL && newmode != NORMAL)
	437	setmode(NORMAL);
94c88dd0 BJ	438	switch (newmode) {
	439	case NORMAL:
	440	switch(curmode) {
	441	case NORMAL:
2770968b	442	break;
94c88dd0 BJ	443	case UNDERL:
94c88dd0 BJ	444	puts(EXIT_UNDERLINE);
2770968b	445	break;
94c88dd0 BJ	446	default:
	447	/* This includes standout */
	448	puts(EXIT_ATTRIBUTES);
2770968b	449	break;
94c88dd0 BJ	450	}
	451	break;
	452	case ALTSET:
	453	puts(ENTER_REVERSE);
	454	break;
	455	case SUPERSC:
	456	/*
	457	* This only works on a few terminals.
	458	* It should be fixed.
	459	*/
	460	puts(ENTER_UNDERLINE);
	461	puts(ENTER_DIM);
	462	break;
	463	case SUBSC:
	464	puts(ENTER_DIM);
	465	break;
	466	case UNDERL:
	467	puts(ENTER_UNDERLINE);
	468	break;
	469	case BOLD:
	470	puts(ENTER_BOLD);
	471	break;
	472	default:
	473	/*
	474	* We should have some provision here for multiple modes
	475	* on at once. This will have to come later.
	476	*/
	477	puts(ENTER_STANDOUT);
	478	break;
2770968b	479	}
a7878ce2	480	}
94c88dd0 BJ	481	curmode = newmode;
	482	}
	483	/* @(#)getopt.c 3.2 */
	484	#define ERR(s, c) if(opterr){\
	485	fputs(argv[0], stderr);\
	486	fputs(s, stderr);\
	487	fputc(c, stderr);\
	488	fputc('\n', stderr);}
	489
	490	int opterr = 1;
	491	int optind = 1;
	492	char *optarg;
	493	char *index();
	494
	495	int
	496	getopt (argc, argv, opts)
	497	char *argv, opts;
	498	{
	499	static int sp = 1;
	500	char c;
	501	char *cp;
	502
	503	if (sp == 1)
	504	if (optind >= argc \|\|
	505	argv[optind][0] != '-' \|\| argv[optind][1] == '\0')
	506	return EOF;
	507	else if (strcmp(argv[optind], "--") == NULL) {
	508	optind++;
	509	return EOF;
2770968b	510	}
94c88dd0 BJ	511	else if (strcmp(argv[optind], "-?") == NULL) {
	512	optind++;
	513	return '?';
	514	}
	515	c = argv[optind][sp];
	516	if (c == ':' \|\| (cp=index(opts, c)) == NULL) {
	517	ERR (": illegal option -- ", c);
	518	if (argv[optind][++sp] == '\0') {
	519	optind++;
	520	sp = 1;
	521	}
	522	return '?';
2770968b	523	}
94c88dd0 BJ	524	if (*++cp == ':') {
	525	if (argv[optind][2] != '\0')
	526	optarg = &argv[optind++][sp+1];
	527	else if (++optind >= argc) {
	528	ERR (": option requires an argument -- ", c);
	529	sp = 1;
	530	return '?';
2770968b	531	} else
94c88dd0 BJ	532	optarg = argv[optind++];
	533	sp = 1;
	534	}
	535	else if (argv[optind][++sp] == '\0') {
	536	sp = 1;
	537	optind++;
	538	}
	539	return c;
2770968b	540	}