[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	5.3 (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 = 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
eda93319	14	static char sccsid[] = "@(#)ul.c 5.3 (Berkeley) %G%";
22e155fc	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;
eda93319	213	else
5041df75	214	obuf[col].c_mode = mode;
94c88dd0 BJ	215	col++;
	216	if (col > maxcol)
	217	maxcol = col;
	218	continue;
2770968b	219	}
5041df75 RC	220	if (maxcol)
5041df75 RC	221	flushln();
2770968b BJ	222	}
2770968b BJ	223
94c88dd0	224	flushln()
2770968b	225	{
94c88dd0 BJ	226	register lastmode;
	227	register i;
	228	int hadmodes = 0;
	229
	230	lastmode = NORMAL;
	231	for (i=0; i<maxcol; i++) {
	232	if (obuf[i].c_mode != lastmode) {
	233	hadmodes++;
	234	setmode(obuf[i].c_mode);
	235	lastmode = obuf[i].c_mode;
	236	}
	237	if (obuf[i].c_char == '\0') {
	238	if (upln) {
	239	puts(CURS_RIGHT);
	240	} else
	241	outc(' ');
	242	} else
	243	outc(obuf[i].c_char);
	244	}
	245	if (lastmode != NORMAL) {
	246	setmode(0);
	247	}
	248	if (must_overstrike && hadmodes)
	249	overstrike();
	250	putchar('\n');
	251	if (iflag && hadmodes)
	252	iattr();
	253	fflush(stdout);
	254	if (upln)
	255	upln--;
	256	initbuf();
2770968b BJ	257	}
2770968b BJ	258
94c88dd0 BJ	259	/*
	260	* For terminals that can overstrike, overstrike underlines and bolds.
	261	* We don't do anything with halfline ups and downs, or Greek.
	262	*/
	263	overstrike()
	264	{
	265	register int i;
	266	char lbuf[256];
	267	register char *cp = lbuf;
	268	int hadbold=0;
2770968b	269
94c88dd0 BJ	270	/* Set up overstrike buffer */
	271	for (i=0; i<maxcol; i++)
	272	switch (obuf[i].c_mode) {
	273	case NORMAL:
	274	default:
	275	*cp++ = ' ';
	276	break;
	277	case UNDERL:
	278	*cp++ = '_';
	279	break;
	280	case BOLD:
	281	*cp++ = obuf[i].c_char;
	282	hadbold=1;
	283	break;
	284	}
	285	putchar('\r');
	286	for (cp=' '; cp==' '; cp--)
	287	*cp = 0;
	288	for (cp=lbuf; *cp; cp++)
	289	putchar(*cp);
	290	if (hadbold) {
	291	putchar('\r');
	292	for (cp=lbuf; *cp; cp++)
	293	putchar(cp=='_' ? ' ' : cp);
	294	putchar('\r');
	295	for (cp=lbuf; *cp; cp++)
	296	putchar(cp=='_' ? ' ' : cp);
	297	}
	298	}
2770968b	299
94c88dd0	300	iattr()
2770968b	301	{
94c88dd0 BJ	302	register int i;
	303	char lbuf[256];
	304	register char *cp = lbuf;
2770968b	305
94c88dd0 BJ	306	for (i=0; i<maxcol; i++)
	307	switch (obuf[i].c_mode) {
	308	case NORMAL: *cp++ = ' '; break;
	309	case ALTSET: *cp++ = 'g'; break;
	310	case SUPERSC: *cp++ = '^'; break;
	311	case SUBSC: *cp++ = 'v'; break;
	312	case UNDERL: *cp++ = '_'; break;
	313	case BOLD: *cp++ = '!'; break;
	314	default: *cp++ = 'X'; break;
2770968b	315	}
94c88dd0 BJ	316	for (cp=' '; cp==' '; cp--)
	317	*cp = 0;
	318	for (cp=lbuf; *cp; cp++)
	319	putchar(*cp);
	320	putchar('\n');
2770968b BJ	321	}
2770968b BJ	322
94c88dd0	323	initbuf()
2770968b	324	{
2770968b	325
33ce36f1	326	bzero(obuf, sizeof (obuf)); /* depends on NORMAL == 0 */
94c88dd0 BJ	327	col = 0;
	328	maxcol = 0;
	329	mode &= ALTSET;
2770968b BJ	330	}
2770968b BJ	331
94c88dd0	332	fwd()
2770968b	333	{
94c88dd0	334	register oldcol, oldmax;
2770968b	335
94c88dd0 BJ	336	oldcol = col;
	337	oldmax = maxcol;
	338	flushln();
	339	col = oldcol;
	340	maxcol = oldmax;
	341	}
	342
	343	reverse()
	344	{
	345	upln++;
	346	fwd();
	347	puts(CURS_UP);
	348	puts(CURS_UP);
	349	upln++;
	350	}
	351
	352	initcap()
	353	{
	354	static char tcapbuf[512];
	355	char *termtype;
	356	char *bp = tcapbuf;
	357	char getenv(), tgetstr();
	358
	359	/* This nonsense attempts to work with both old and new termcap */
	360	CURS_UP = tgetstr("up", &bp);
	361	CURS_RIGHT = tgetstr("ri", &bp);
	362	if (CURS_RIGHT == NULL)
	363	CURS_RIGHT = tgetstr("nd", &bp);
	364	CURS_LEFT = tgetstr("le", &bp);
	365	if (CURS_LEFT == NULL)
	366	CURS_LEFT = tgetstr("bc", &bp);
	367	if (CURS_LEFT == NULL && tgetflag("bs"))
	368	CURS_LEFT = "\b";
	369
	370	ENTER_STANDOUT = tgetstr("so", &bp);
	371	EXIT_STANDOUT = tgetstr("se", &bp);
	372	ENTER_UNDERLINE = tgetstr("us", &bp);
	373	EXIT_UNDERLINE = tgetstr("ue", &bp);
	374	ENTER_DIM = tgetstr("mh", &bp);
	375	ENTER_BOLD = tgetstr("md", &bp);
	376	ENTER_REVERSE = tgetstr("mr", &bp);
	377	EXIT_ATTRIBUTES = tgetstr("me", &bp);
	378
	379	if (!ENTER_BOLD && ENTER_REVERSE)
	380	ENTER_BOLD = ENTER_REVERSE;
	381	if (!ENTER_BOLD && ENTER_STANDOUT)
	382	ENTER_BOLD = ENTER_STANDOUT;
	383	if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
	384	ENTER_UNDERLINE = ENTER_STANDOUT;
	385	EXIT_UNDERLINE = EXIT_STANDOUT;
	386	}
	387	if (!ENTER_DIM && ENTER_STANDOUT)
	388	ENTER_DIM = ENTER_STANDOUT;
	389	if (!ENTER_REVERSE && ENTER_STANDOUT)
	390	ENTER_REVERSE = ENTER_STANDOUT;
	391	if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
	392	EXIT_ATTRIBUTES = EXIT_STANDOUT;
	393
	394	/*
	395	* Note that we use REVERSE for the alternate character set,
	396	* not the as/ae capabilities. This is because we are modelling
	397	* the model 37 teletype (since that's what nroff outputs) and
	398	* the typical as/ae is more of a graphics set, not the greek
	399	* letters the 37 has.
400	*/
401
94c88dd0 BJ	402	UNDER_CHAR = tgetstr("uc", &bp);
	403	must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
	404	}
	405
	406	outchar(c)
	407	char c;
	408	{
	409	putchar(c&0177);
	410	}
	411
	412	puts(str)
	413	char *str;
	414	{
	415	if (str)
	416	tputs(str, 1, outchar);
	417	}
	418
	419	static curmode = 0;
	420	outc(c)
	421	char c;
	422	{
	423	putchar(c);
	424	if (must_use_uc && (curmode&UNDERL)) {
	425	puts(CURS_LEFT);
	426	puts(UNDER_CHAR);
	427	}
	428	}
	429
	430	setmode(newmode)
	431	int newmode;
	432	{
	433	if (!iflag)
a7878ce2 BJ	434	{
	435	if (curmode != NORMAL && newmode != NORMAL)
	436	setmode(NORMAL);
94c88dd0 BJ	437	switch (newmode) {
	438	case NORMAL:
	439	switch(curmode) {
	440	case NORMAL:
2770968b	441	break;
94c88dd0 BJ	442	case UNDERL:
94c88dd0 BJ	443	puts(EXIT_UNDERLINE);
2770968b	444	break;
94c88dd0 BJ	445	default:
	446	/* This includes standout */
	447	puts(EXIT_ATTRIBUTES);
2770968b	448	break;
94c88dd0 BJ	449	}
	450	break;
	451	case ALTSET:
	452	puts(ENTER_REVERSE);
	453	break;
	454	case SUPERSC:
	455	/*
	456	* This only works on a few terminals.
	457	* It should be fixed.
	458	*/
	459	puts(ENTER_UNDERLINE);
	460	puts(ENTER_DIM);
	461	break;
	462	case SUBSC:
	463	puts(ENTER_DIM);
	464	break;
	465	case UNDERL:
	466	puts(ENTER_UNDERLINE);
	467	break;
	468	case BOLD:
	469	puts(ENTER_BOLD);
	470	break;
	471	default:
	472	/*
	473	* We should have some provision here for multiple modes
	474	* on at once. This will have to come later.
	475	*/
	476	puts(ENTER_STANDOUT);
	477	break;
2770968b	478	}
a7878ce2	479	}
94c88dd0 BJ	480	curmode = newmode;
	481	}
	482	/* @(#)getopt.c 3.2 */
	483	#define ERR(s, c) if(opterr){\
	484	fputs(argv[0], stderr);\
	485	fputs(s, stderr);\
	486	fputc(c, stderr);\
	487	fputc('\n', stderr);}
	488
	489	int opterr = 1;
	490	int optind = 1;
	491	char *optarg;
	492	char *index();
	493
	494	int
	495	getopt (argc, argv, opts)
	496	char *argv, opts;
	497	{
	498	static int sp = 1;
	499	char c;
	500	char *cp;
	501
	502	if (sp == 1)
	503	if (optind >= argc \|\|
	504	argv[optind][0] != '-' \|\| argv[optind][1] == '\0')
	505	return EOF;
	506	else if (strcmp(argv[optind], "--") == NULL) {
	507	optind++;
	508	return EOF;
2770968b	509	}
94c88dd0 BJ	510	else if (strcmp(argv[optind], "-?") == NULL) {
	511	optind++;
	512	return '?';
	513	}
	514	c = argv[optind][sp];
	515	if (c == ':' \|\| (cp=index(opts, c)) == NULL) {
	516	ERR (": illegal option -- ", c);
	517	if (argv[optind][++sp] == '\0') {
	518	optind++;
	519	sp = 1;
	520	}
	521	return '?';
2770968b	522	}
94c88dd0 BJ	523	if (*++cp == ':') {
	524	if (argv[optind][2] != '\0')
	525	optarg = &argv[optind++][sp+1];
	526	else if (++optind >= argc) {
	527	ERR (": option requires an argument -- ", c);
	528	sp = 1;
	529	return '?';
2770968b	530	} else
94c88dd0 BJ	531	optarg = argv[optind++];
	532	sp = 1;
	533	}
	534	else if (argv[optind][++sp] == '\0') {
	535	sp = 1;
	536	optind++;
	537	}
	538	return c;
2770968b	539	}