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

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1980 Regents of the University of California.\n\
 All rights reserved.\n";
#endif not lint

#ifndef lint
static char sccsid[] = "@(#)ul.c	5.1 (Berkeley) %G%";
#endif not lint

#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;
} ;

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;
	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()
{

	bzero(obuf, sizeof (obuf));		/* depends on NORMAL == 0 */
	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.
	 */

	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
22e155fc DF	1	/*
	2	* Copyright (c) 1980 Regents of the University of California.
	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*/
	6
	7	#ifndef lint
	8	char copyright[] =
	9	"@(#) Copyright (c) 1980 Regents of the University of California.\n\
	10	All rights reserved.\n";
	11	#endif not lint
	12
476fcd16	13	#ifndef lint
22e155fc DF	14	static char sccsid[] = "@(#)ul.c 5.1 (Berkeley) %G%";
22e155fc DF	15	#endif not lint
a7878ce2	16
2770968b BJ	17	#include <stdio.h>
2770968b BJ	18
94c88dd0 BJ	19	#define IESC '\033'
	20	#define SO '\016'
	21	#define SI '\017'
	22	#define HFWD '9'
	23	#define HREV '8'
	24	#define FREV '7'
	25	#define MAXBUF 512
	26
	27	#define NORMAL 000
	28	#define ALTSET 001 /* Reverse */
	29	#define SUPERSC 002 /* Dim */
	30	#define SUBSC 004 /* Dim \| Ul */
	31	#define UNDERL 010 /* Ul */
	32	#define BOLD 020 /* Bold */
	33
	34	int must_use_uc, must_overstrike;
	35	char CURS_UP, CURS_RIGHT, *CURS_LEFT,
	36	ENTER_STANDOUT, EXIT_STANDOUT, ENTER_UNDERLINE, EXIT_UNDERLINE,
	37	ENTER_DIM, ENTER_BOLD, ENTER_REVERSE, UNDER_CHAR, *EXIT_ATTRIBUTES;
	38
	39	struct CHAR {
	40	char c_mode;
	41	char c_char;
	42	} ;
	43
94c88dd0 BJ	44	struct CHAR obuf[MAXBUF];
	45	int col, maxcol;
	46	int mode;
	47	int halfpos;
	48	int upln;
	49	int iflag;
2770968b BJ	50
	51	main(argc, argv)
	52	int argc;
	53	char **argv;
	54	{
94c88dd0 BJ	55	int c;
94c88dd0 BJ	56	char cp, termtype;
2770968b	57	FILE *f;
94c88dd0 BJ	58	char termcap[1024];
	59	char *getenv();
	60	extern int optind;
	61	extern char *optarg;
2770968b	62
2770968b	63	termtype = getenv("TERM");
94c88dd0 BJ	64	if (termtype == NULL \|\| (argv[0][0] == 'c' && !isatty(1)))
	65	termtype = "lpr";
	66	while ((c=getopt(argc, argv, "it:T:")) != EOF)
	67	switch(c) {
2770968b BJ	68
	69	case 't':
	70	case 'T': /* for nroff compatibility */
94c88dd0	71	termtype = optarg;
2770968b BJ	72	break;
2770968b BJ	73	case 'i':
94c88dd0 BJ	74	iflag = 1;
94c88dd0 BJ	75	break;
2770968b BJ	76
2770968b BJ	77	default:
94c88dd0 BJ	78	fprintf(stderr,
	79	"Usage: %s [ -i ] [ -tTerm ] file...\n",
	80	argv[0]);
2770968b BJ	81	exit(1);
2770968b BJ	82	}
94c88dd0	83
2770968b BJ	84	switch(tgetent(termcap, termtype)) {
	85
	86	case 1:
2770968b BJ	87	break;
	88
	89	default:
	90	fprintf(stderr,"trouble reading termcap");
	91	/* fall through to ... */
	92
	93	case 0:
	94	/* No such terminal type - assume dumb */
94c88dd0	95	strcpy(termcap, "dumb:os:col#80:cr=^M:sf=^J:am:");
2770968b BJ	96	break;
2770968b BJ	97	}
94c88dd0 BJ	98	initcap();
	99	if ( (tgetflag("os") && ENTER_BOLD==NULL ) \|\|
	100	(tgetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL))
	101	must_overstrike = 1;
94c88dd0 BJ	102	initbuf();
94c88dd0 BJ	103	if (optind == argc)
2770968b	104	filter(stdin);
94c88dd0 BJ	105	else for (; optind<argc; optind++) {
94c88dd0 BJ	106	f = fopen(argv[optind],"r");
2770968b	107	if (f == NULL) {
94c88dd0	108	perror(argv[optind]);
2770968b BJ	109	exit(1);
	110	} else
	111	filter(f);
	112	}
	113	exit(0);
	114	}
	115
	116	filter(f)
	117	FILE *f;
	118	{
94c88dd0	119	register c;
2770968b	120
94c88dd0 BJ	121	while((c = getc(f)) != EOF) switch(c) {
	122
	123	case '\b':
	124	if (col > 0)
	125	col--;
	126	continue;
	127
	128	case '\t':
	129	col = (col+8) & ~07;
	130	if (col > maxcol)
	131	maxcol = col;
	132	continue;
	133
	134	case '\r':
	135	col = 0;
	136	continue;
	137
	138	case SO:
	139	mode \|= ALTSET;
	140	continue;
	141
	142	case SI:
	143	mode &= ~ALTSET;
	144	continue;
	145
	146	case IESC:
	147	switch (c = getc(f)) {
	148
	149	case HREV:
	150	if (halfpos == 0) {
	151	mode \|= SUPERSC;
	152	halfpos--;
	153	} else if (halfpos > 0) {
	154	mode &= ~SUBSC;
	155	halfpos--;
2770968b	156	} else {
94c88dd0 BJ	157	halfpos = 0;
94c88dd0 BJ	158	reverse();
2770968b	159	}
94c88dd0	160	continue;
2770968b	161
94c88dd0 BJ	162	case HFWD:
	163	if (halfpos == 0) {
	164	mode \|= SUBSC;
	165	halfpos++;
	166	} else if (halfpos < 0) {
	167	mode &= ~SUPERSC;
	168	halfpos++;
	169	} else {
	170	halfpos = 0;
	171	fwd();
2770968b	172	}
94c88dd0 BJ	173	continue;
	174
	175	case FREV:
	176	reverse();
	177	continue;
	178
	179	default:
	180	fprintf(stderr,
	181	"Unknown escape sequence in input: %o, %o\n",
	182	IESC, c);
	183	exit(1);
2770968b	184	}
94c88dd0 BJ	185	continue;
	186
	187	case '_':
	188	if (obuf[col].c_char)
	189	obuf[col].c_mode \|= UNDERL \| mode;
	190	else
	191	obuf[col].c_char = '_';
	192	case ' ':
	193	col++;
	194	if (col > maxcol)
	195	maxcol = col;
	196	continue;
	197
	198	case '\n':
	199	flushln();
5041df75	200	continue;
94c88dd0 BJ	201
	202	default:
	203	if (c < ' ') /* non printing */
	204	continue;
	205	if (obuf[col].c_char == '\0') {
	206	obuf[col].c_char = c;
	207	obuf[col].c_mode = mode;
	208	} else if (obuf[col].c_char == '_') {
	209	obuf[col].c_char = c;
	210	obuf[col].c_mode \|= UNDERL\|mode;
5041df75	211	} else if (obuf[col].c_char == c)
94c88dd0	212	obuf[col].c_mode \|= BOLD\|mode;
5041df75 RC	213	else {
	214	obuf[col].c_mode = c;
	215	obuf[col].c_mode = mode;
	216	}
94c88dd0 BJ	217	col++;
	218	if (col > maxcol)
	219	maxcol = col;
	220	continue;
2770968b	221	}
5041df75 RC	222	if (maxcol)
5041df75 RC	223	flushln();
2770968b BJ	224	}
2770968b BJ	225
94c88dd0	226	flushln()
2770968b	227	{
94c88dd0 BJ	228	register lastmode;
	229	register i;
	230	int hadmodes = 0;
	231
	232	lastmode = NORMAL;
	233	for (i=0; i<maxcol; i++) {
	234	if (obuf[i].c_mode != lastmode) {
	235	hadmodes++;
	236	setmode(obuf[i].c_mode);
	237	lastmode = obuf[i].c_mode;
	238	}
	239	if (obuf[i].c_char == '\0') {
	240	if (upln) {
	241	puts(CURS_RIGHT);
	242	} else
	243	outc(' ');
	244	} else
	245	outc(obuf[i].c_char);
	246	}
	247	if (lastmode != NORMAL) {
	248	setmode(0);
	249	}
	250	if (must_overstrike && hadmodes)
	251	overstrike();
	252	putchar('\n');
	253	if (iflag && hadmodes)
	254	iattr();
	255	fflush(stdout);
	256	if (upln)
	257	upln--;
	258	initbuf();
2770968b BJ	259	}
2770968b BJ	260
94c88dd0 BJ	261	/*
	262	* For terminals that can overstrike, overstrike underlines and bolds.
	263	* We don't do anything with halfline ups and downs, or Greek.
	264	*/
	265	overstrike()
	266	{
	267	register int i;
	268	char lbuf[256];
	269	register char *cp = lbuf;
	270	int hadbold=0;
2770968b	271
94c88dd0 BJ	272	/* Set up overstrike buffer */
	273	for (i=0; i<maxcol; i++)
	274	switch (obuf[i].c_mode) {
	275	case NORMAL:
	276	default:
	277	*cp++ = ' ';
	278	break;
	279	case UNDERL:
	280	*cp++ = '_';
	281	break;
	282	case BOLD:
	283	*cp++ = obuf[i].c_char;
	284	hadbold=1;
	285	break;
	286	}
	287	putchar('\r');
	288	for (cp=' '; cp==' '; cp--)
	289	*cp = 0;
	290	for (cp=lbuf; *cp; cp++)
	291	putchar(*cp);
	292	if (hadbold) {
	293	putchar('\r');
	294	for (cp=lbuf; *cp; cp++)
	295	putchar(cp=='_' ? ' ' : cp);
	296	putchar('\r');
	297	for (cp=lbuf; *cp; cp++)
	298	putchar(cp=='_' ? ' ' : cp);
	299	}
	300	}
2770968b	301
94c88dd0	302	iattr()
2770968b	303	{
94c88dd0 BJ	304	register int i;
	305	char lbuf[256];
	306	register char *cp = lbuf;
2770968b	307
94c88dd0 BJ	308	for (i=0; i<maxcol; i++)
	309	switch (obuf[i].c_mode) {
	310	case NORMAL: *cp++ = ' '; break;
	311	case ALTSET: *cp++ = 'g'; break;
	312	case SUPERSC: *cp++ = '^'; break;
	313	case SUBSC: *cp++ = 'v'; break;
	314	case UNDERL: *cp++ = '_'; break;
	315	case BOLD: *cp++ = '!'; break;
	316	default: *cp++ = 'X'; break;
2770968b	317	}
94c88dd0 BJ	318	for (cp=' '; cp==' '; cp--)
	319	*cp = 0;
	320	for (cp=lbuf; *cp; cp++)
	321	putchar(*cp);
	322	putchar('\n');
2770968b BJ	323	}
2770968b BJ	324
94c88dd0	325	initbuf()
2770968b	326	{
2770968b	327
33ce36f1	328	bzero(obuf, sizeof (obuf)); /* depends on NORMAL == 0 */
94c88dd0 BJ	329	col = 0;
	330	maxcol = 0;
	331	mode &= ALTSET;
2770968b BJ	332	}
2770968b BJ	333
94c88dd0	334	fwd()
2770968b	335	{
94c88dd0	336	register oldcol, oldmax;
2770968b	337
94c88dd0 BJ	338	oldcol = col;
	339	oldmax = maxcol;
	340	flushln();
	341	col = oldcol;
	342	maxcol = oldmax;
	343	}
	344
	345	reverse()
	346	{
	347	upln++;
	348	fwd();
	349	puts(CURS_UP);
	350	puts(CURS_UP);
	351	upln++;
	352	}
	353
	354	initcap()
	355	{
	356	static char tcapbuf[512];
	357	char *termtype;
	358	char *bp = tcapbuf;
	359	char getenv(), tgetstr();
	360
	361	/* This nonsense attempts to work with both old and new termcap */
	362	CURS_UP = tgetstr("up", &bp);
	363	CURS_RIGHT = tgetstr("ri", &bp);
	364	if (CURS_RIGHT == NULL)
	365	CURS_RIGHT = tgetstr("nd", &bp);
	366	CURS_LEFT = tgetstr("le", &bp);
	367	if (CURS_LEFT == NULL)
	368	CURS_LEFT = tgetstr("bc", &bp);
	369	if (CURS_LEFT == NULL && tgetflag("bs"))
	370	CURS_LEFT = "\b";
	371
	372	ENTER_STANDOUT = tgetstr("so", &bp);
	373	EXIT_STANDOUT = tgetstr("se", &bp);
	374	ENTER_UNDERLINE = tgetstr("us", &bp);
	375	EXIT_UNDERLINE = tgetstr("ue", &bp);
	376	ENTER_DIM = tgetstr("mh", &bp);
	377	ENTER_BOLD = tgetstr("md", &bp);
	378	ENTER_REVERSE = tgetstr("mr", &bp);
	379	EXIT_ATTRIBUTES = tgetstr("me", &bp);
	380
	381	if (!ENTER_BOLD && ENTER_REVERSE)
	382	ENTER_BOLD = ENTER_REVERSE;
	383	if (!ENTER_BOLD && ENTER_STANDOUT)
	384	ENTER_BOLD = ENTER_STANDOUT;
	385	if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
	386	ENTER_UNDERLINE = ENTER_STANDOUT;
	387	EXIT_UNDERLINE = EXIT_STANDOUT;
	388	}
	389	if (!ENTER_DIM && ENTER_STANDOUT)
	390	ENTER_DIM = ENTER_STANDOUT;
	391	if (!ENTER_REVERSE && ENTER_STANDOUT)
	392	ENTER_REVERSE = ENTER_STANDOUT;
	393	if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
	394	EXIT_ATTRIBUTES = EXIT_STANDOUT;
	395
	396	/*
	397	* Note that we use REVERSE for the alternate character set,
	398	* not the as/ae capabilities. This is because we are modelling
	399	* the model 37 teletype (since that's what nroff outputs) and
	400	* the typical as/ae is more of a graphics set, not the greek
	401	* letters the 37 has.
402	*/
403
94c88dd0 BJ	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	}