[unix-history] / usr / src / usr.bin / vgrind / vfontedpr.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
static char sccsid[] = "@(#)vfontedpr.c	5.2 (Berkeley) %G%";
#endif not lint

#include <ctype.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>

#define boolean int
#define TRUE 1
#define FALSE 0
#define NIL 0
#define STANDARD 0
#define ALTERNATE 1

/*
 * Vfontedpr.
 *
 * Dave Presotto 1/12/81 (adapted from an earlier version by Bill Joy)
 *
 */

#define STRLEN 10		/* length of strings introducing things */
#define PNAMELEN 40		/* length of a function/procedure name */
#define PSMAX 20		/* size of procedure name stacking */

/* regular expression routines */

char	*expmatch();		/* match a string to an expression */
char	*STRNCMP();		/* a different kindof strncmp */
char	*convexp();		/* convert expression to internal form */
char	*tgetstr();

boolean	isproc();


char	*ctime();

/*
 *	The state variables
 */

boolean	incomm;			/* in a comment of the primary type */
boolean	instr;			/* in a string constant */
boolean	inchr;			/* in a string constant */
boolean	nokeyw = FALSE;		/* no keywords being flagged */
boolean	index = FALSE;		/* form an index */
boolean filter = FALSE;		/* act as a filter (like eqn) */
boolean pass = FALSE;		/* when acting as a filter, pass indicates
				 * whether we are currently processing
				 * input.
				 */
boolean prccont;		/* continue last procedure */
int	comtype;		/* type of comment */
int	margin;
int	psptr;			/* the stack index of the current procedure */
char	pstack[PSMAX][PNAMELEN+1];	/* the procedure name stack */
int	plstack[PSMAX];		/* the procedure nesting level stack */
int	blklevel;		/* current nesting level */
char	*defsfile = "/usr/lib/vgrindefs";	/* name of language definitions file */
char	pname[BUFSIZ+1];

/*
 *	The language specific globals
 */

char	*language = "c";	/* the language indicator */
char	*l_keywds[BUFSIZ/2];	/* keyword table address */
char	*l_prcbeg;		/* regular expr for procedure begin */
char	*l_combeg;		/* string introducing a comment */
char	*l_comend;		/* string ending a comment */
char	*l_acmbeg;		/* string introducing a comment */
char	*l_acmend;		/* string ending a comment */
char	*l_blkbeg;		/* string begining of a block */
char	*l_blkend;		/* string ending a block */
char    *l_strbeg;		/* delimiter for string constant */
char    *l_strend;		/* delimiter for string constant */
char    *l_chrbeg;		/* delimiter for character constant */
char    *l_chrend;		/* delimiter for character constant */
char	l_escape;		/* character used to  escape characters */
boolean	l_toplex;		/* procedures only defined at top lex level */

/*
 *  global variables also used by expmatch
 */
boolean _escaped;		/* if last character was an escape */
char *_start;			/* start of the current string */
boolean	l_onecase;		/* upper and lower case are equivalent */

#define	ps(x)	printf("%s", x)

main(argc, argv)
    int argc;
    char *argv[];
{
    int lineno;
    char *fname = "";
    char *ptr;
    struct stat stbuf;
    char buf[BUFSIZ];
    char strings[2 * BUFSIZ];
    char defs[2 * BUFSIZ];
    int needbp = 0;

    argc--, argv++;
    do {
	char *cp;
	int i;

	if (argc > 0) {
	    if (!strcmp(argv[0], "-h")) {
		if (argc == 1) {
		    printf("'ds =H\n");
		    argc = 0;
		    goto rest;
		}
		printf("'ds =H %s\n", argv[1]);
		argc--, argv++;
		argc--, argv++;
		if (argc > 0)
		    continue;
		goto rest;
	    }

	    /* act as a filter like eqn */
	    if (!strcmp(argv[0], "-f")) {
		filter++;
		argv[0] = argv[argc-1];
		argv[argc-1] = "-";
		continue;
	    }

	    /* take input from the standard place */
	    if (!strcmp(argv[0], "-")) {
		argc = 0;
		goto rest;
	    }

	    /* build an index */
	    if (!strcmp(argv[0], "-x")) {
		index++;
		argv[0] = "-n";
	    }

	    /* indicate no keywords */
	    if (!strcmp(argv[0], "-n")) {
		nokeyw++;
		argc--, argv++;
		continue;
	    }

	    /* specify the font size */
	    if (!strncmp(argv[0], "-s", 2)) {
		i = 0;
		cp = argv[0] + 2;
		while (*cp)
		    i = i * 10 + (*cp++ - '0');
		printf("'ps %d\n'vs %d\n", i, i+1);
		argc--, argv++;
		continue;
	    }

	    /* specify the language */
	    if (!strncmp(argv[0], "-l", 2)) {
		language = argv[0]+2;
		argc--, argv++;
		continue;
	    }

	    /* specify the language description file */
	    if (!strncmp(argv[0], "-d", 2)) {
		defsfile = argv[1];
		argc--, argv++;
		argc--, argv++;
		continue;
	    }

	    /* open the file for input */
	    if (freopen(argv[0], "r", stdin) == NULL) {
		perror(argv[0]);
		exit(1);
	    }
	    if (index)
		printf("'ta 4i 4.25i 5.5iR\n'in .5i\n");
	    fname = argv[0];
	    argc--, argv++;
	}
    rest:

	/*
	 *  get the  language definition from the defs file
	 */
	i = tgetent (defs, language, defsfile);
	if (i == 0) {
	    fprintf (stderr, "no entry for language %s\n", language);
	    exit (0);
	} else  if (i < 0) {
	    fprintf (stderr,  "cannot find vgrindefs file %s\n", defsfile);
	    exit (0);
	}
	cp = strings;
	if (tgetstr ("kw", &cp) == NIL)
	    nokeyw = TRUE;
	else  {
	    char **cpp;

	    cpp = l_keywds;
	    cp = strings;
	    while (*cp) {
		while (*cp == ' ' || *cp =='\t')
		    *cp++ = NULL;
		if (*cp)
		    *cpp++ = cp;
		while (*cp != ' ' && *cp  != '\t' && *cp)
		    cp++;
	    }
	    *cpp = NIL;
	}
	cp = buf;
	l_prcbeg = convexp (tgetstr ("pb", &cp));
	cp = buf;
	l_combeg = convexp (tgetstr ("cb", &cp));
	cp = buf;
	l_comend = convexp (tgetstr ("ce", &cp));
	cp = buf;
	l_acmbeg = convexp (tgetstr ("ab", &cp));
	cp = buf;
	l_acmend = convexp (tgetstr ("ae", &cp));
	cp = buf;
	l_strbeg = convexp (tgetstr ("sb", &cp));
	cp = buf;
	l_strend = convexp (tgetstr ("se", &cp));
	cp = buf;
	l_blkbeg = convexp (tgetstr ("bb", &cp));
	cp = buf;
	l_blkend = convexp (tgetstr ("be", &cp));
	cp = buf;
	l_chrbeg = convexp (tgetstr ("lb", &cp));
	cp = buf;
	l_chrend = convexp (tgetstr ("le", &cp));
	l_escape = '\\';
	l_onecase = tgetflag ("oc");
	l_toplex = tgetflag ("tl");

	/* initialize the program */

	incomm = FALSE;
	instr = FALSE;
	inchr = FALSE;
	_escaped = FALSE;
	blklevel = 0;
	for (psptr=0; psptr<PSMAX; psptr++) {
	    pstack[psptr][0] = NULL;
	    plstack[psptr] = 0;
	}
	psptr = -1;
	ps("'-F\n");
	if (!filter) {
	    printf(".ds =F %s\n", fname);
	    ps("'wh 0 vH\n");
	    ps("'wh -1i vF\n");
	}
	if (needbp) {
	    needbp = 0;
	    printf(".()\n");
	    printf(".bp\n");
	}
	if (!filter) {
	    fstat(fileno(stdin), &stbuf);
	    cp = ctime(&stbuf.st_mtime);
	    cp[16] = '\0';
	    cp[24] = '\0';
	    printf(".ds =M %s %s\n", cp+4, cp+20);
	}

	/*
	 *	MAIN LOOP!!!
	 */
	while (fgets(buf, sizeof buf, stdin) != NULL) {
	    if (buf[0] == '\f') {
		printf(".bp\n");
	    }
	    if (buf[0] == '.') {
		printf("%s", buf);
		if (!strncmp (buf+1, "vS", 2))
		    pass = TRUE;
		if (!strncmp (buf+1, "vE", 2))
		    pass = FALSE;
		continue;
	    }
	    prccont = FALSE;
	    if (!filter || pass)
		putScp(buf);
	    else
		printf("%s", buf);
	    if (prccont && (psptr >= 0)) {
		ps("'FC ");
		ps(pstack[psptr]);
		ps("\n");
	    }
#ifdef DEBUG
	    printf ("com %o str %o chr %o ptr %d\n", incomm, instr, inchr, psptr);
#endif
	    margin = 0;
	}
	needbp = 1;
    } while (argc > 0);
    exit(0);
}

#define isidchr(c) (isalnum(c) || (c) == '_')

putScp(os)
    char *os;
{
    register char *s = os;		/* pointer to unmatched string */
    char dummy[BUFSIZ];			/* dummy to be used by expmatch */
    char *comptr;			/* end of a comment delimiter */
    char *acmptr;			/* end of a comment delimiter */
    char *strptr;			/* end of a string delimiter */
    char *chrptr;			/* end of a character const delimiter */
    char *blksptr;			/* end of a lexical block start */
    char *blkeptr;			/* end of a lexical block end */

    _start = os;			/* remember the start for expmatch */
    _escaped = FALSE;
    if (nokeyw || incomm || instr)
	goto skip;
    if (isproc(s)) {
	ps("'FN ");
	ps(pname);
        ps("\n");
	if (psptr < PSMAX) {
	    ++psptr;
	    strncpy (pstack[psptr], pname, PNAMELEN);
	    pstack[psptr][PNAMELEN] = NULL;
	    plstack[psptr] = blklevel;
	}
    } 
skip:
    do {
	/* check for string, comment, blockstart, etc */
	if (!incomm && !instr && !inchr) {

	    blkeptr = expmatch (s, l_blkend, dummy);
	    blksptr = expmatch (s, l_blkbeg, dummy);
	    comptr = expmatch (s, l_combeg, dummy);
	    acmptr = expmatch (s, l_acmbeg, dummy);
	    strptr = expmatch (s, l_strbeg, dummy);
	    chrptr = expmatch (s, l_chrbeg, dummy);

	    /* start of a comment? */
	    if (comptr != NIL)
		if ((comptr < strptr || strptr == NIL)
		  && (comptr < acmptr || acmptr == NIL)
		  && (comptr < chrptr || chrptr == NIL)
		  && (comptr < blksptr || blksptr == NIL)
		  && (comptr < blkeptr || blkeptr == NIL)) {
		    putKcp (s, comptr-1, FALSE);
		    s = comptr;
		    incomm = TRUE;
		    comtype = STANDARD;
		    if (s != os)
			ps ("\\c");
		    ps ("\\c\n'+C\n");
		    continue;
		}

	    /* start of a comment? */
	    if (acmptr != NIL)
		if ((acmptr < strptr || strptr == NIL)
		  && (acmptr < chrptr || chrptr == NIL)
		  && (acmptr < blksptr || blksptr == NIL)
		  && (acmptr < blkeptr || blkeptr == NIL)) {
		    putKcp (s, acmptr-1, FALSE);
		    s = acmptr;
		    incomm = TRUE;
		    comtype = ALTERNATE;
		    if (s != os)
			ps ("\\c");
		    ps ("\\c\n'+C\n");
		    continue;
		}

	    /* start of a string? */
	    if (strptr != NIL)
		if ((strptr < chrptr || chrptr == NIL)
		  && (strptr < blksptr || blksptr == NIL)
		  && (strptr < blkeptr || blkeptr == NIL)) {
		    putKcp (s, strptr-1, FALSE);
		    s = strptr;
		    instr = TRUE;
		    continue;
		}

	    /* start of a character string? */
	    if (chrptr != NIL)
		if ((chrptr < blksptr || blksptr == NIL)
		  && (chrptr < blkeptr || blkeptr == NIL)) {
		    putKcp (s, chrptr-1, FALSE);
		    s = chrptr;
		    inchr = TRUE;
		    continue;
		}

	    /* end of a lexical block */
	    if (blkeptr != NIL) {
		if (blkeptr < blksptr || blksptr == NIL) {
		    putKcp (s, blkeptr - 1, FALSE);
		    s = blkeptr;
		    blklevel--;
		    if (psptr >= 0 && plstack[psptr] >= blklevel) {

			/* end of current procedure */
			if (s != os)
			    ps ("\\c");
			ps ("\\c\n'-F\n");
			blklevel = plstack[psptr];

			/* see if we should print the last proc name */
			if (--psptr >= 0)
			    prccont = TRUE;
			else
			    psptr = -1;
		    }
		    continue;
		}
	    }

	    /* start of a lexical block */
	    if (blksptr != NIL) {
		putKcp (s, blksptr - 1, FALSE);
		s = blksptr;
		blklevel++;
		continue;
	    }

	/* check for end of comment */
	} else if (incomm) {
	    comptr = expmatch (s, l_comend, dummy);
	    acmptr = expmatch (s, l_acmend, dummy);
	    if (((comtype == STANDARD) && (comptr != NIL)) ||
	        ((comtype == ALTERNATE) && (acmptr != NIL))) {
		if (comtype == STANDARD) {
		    putKcp (s, comptr-1, TRUE);
		    s = comptr;
		} else {
		    putKcp (s, acmptr-1, TRUE);
		    s = acmptr;
		}
		incomm = FALSE;
		ps("\\c\n'-C\n");
		continue;
	    } else {
		putKcp (s, s + strlen(s) -1, TRUE);
		s = s + strlen(s);
		continue;
	    }

	/* check for end of string */
	} else if (instr) {
	    if ((strptr = expmatch (s, l_strend, dummy)) != NIL) {
		putKcp (s, strptr-1, TRUE);
		s = strptr;
		instr = FALSE;
		continue;
	    } else {
		putKcp (s, s+strlen(s)-1, TRUE);
		s = s + strlen(s);
		continue;
	    }

	/* check for end of character string */
	} else if (inchr) {
	    if ((chrptr = expmatch (s, l_chrend, dummy)) != NIL) {
		putKcp (s, chrptr-1, TRUE);
		s = chrptr;
		inchr = FALSE;
		continue;
	    } else {
		putKcp (s, s+strlen(s)-1, TRUE);
		s = s + strlen(s);
		continue;
	    }
	}

	/* print out the line */
	putKcp (s, s + strlen(s) -1, FALSE);
	s = s + strlen(s);
    } while (*s);
}

putKcp (start, end, force)
    char	*start;		/* start of string to write */
    char	*end;		/* end of string to write */
    boolean	force;		/* true if we should force nokeyw */
{
    int i;
    int xfld = 0;

    while (start <= end) {
	if (index) {
	    if (*start == ' ' || *start == '\t') {
		if (xfld == 0)	
		    printf("\ 1");
		printf("\t");
		xfld = 1;
		while (*start == ' ' || *start == '\t')
		    start++;
		continue;
	    }
	}

	/* take care of nice tab stops */
	if (*start == '\t') {
	    while (*start == '\t')
		start++;
	    i = tabs(_start, start) - margin / 8;
	    printf("\\h'|%dn'", i * 10 + 1 - margin % 8);
	    continue;
	}

	if (!nokeyw && !force)
	    if ((*start == '#' || isidchr(*start)) 
	    && (start == _start || !isidchr(start[-1]))) {
		i = iskw(start);
		if (i > 0) {
		    ps("\\*(+K");
		    do 
			putcp(*start++);
		    while (--i > 0);
		    ps("\\*(-K");
		    continue;
		}
	    }

	putcp (*start++);
    }
}


tabs(s, os)
    char *s, *os;
{

    return (width(s, os) / 8);
}

width(s, os)
	register char *s, *os;
{
	register int i = 0;

	while (s < os) {
		if (*s == '\t') {
			i = (i + 8) &~ 7;
			s++;
			continue;
		}
		if (*s < ' ')
			i += 2;
		else
			i++;
		s++;
	}
	return (i);
}

putcp(c)
	register int c;
{

	switch(c) {

	case 0:
		break;

	case '\f':
		break;

	case '{':
		ps("\\*(+K{\\*(-K");
		break;

	case '}':
		ps("\\*(+K}\\*(-K");
		break;

	case '\\':
		ps("\\e");
		break;

	case '_':
		ps("\\*_");
		break;

	case '-':
		ps("\\*-");
		break;

	case '`':
		ps("\\`");
		break;

	case '\'':
		ps("\\'");
		break;

	case '.':
		ps("\\&.");
		break;

	case '*':
		ps("\\fI*\\fP");
		break;

	case '/':
		ps("\\fI\\h'\\w' 'u-\\w'/'u'/\\fP");
		break;

	default:
		if (c < 040)
			putchar('^'), c |= '@';
	case '\t':
	case '\n':
		putchar(c);
	}
}

/*
 *	look for a process beginning on this line
 */
boolean
isproc(s)
    char *s;
{
    pname[0] = NULL;
    if (!l_toplex || blklevel == 0)
	if (expmatch (s, l_prcbeg, pname) != NIL) {
	    return (TRUE);
	}
    return (FALSE);
}


/*  iskw -	check to see if the next word is a keyword
 */

iskw(s)
	register char *s;
{
	register char **ss = l_keywds;
	register int i = 1;
	register char *cp = s;

	while (++cp, isidchr(*cp))
		i++;
	while (cp = *ss++)
		if (!STRNCMP(s,cp,i) && !isidchr(cp[i]))
			return (i);
	return (0);
}
Commit	Line	Data
76797561 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
546e1f78	8	static char sccsid[] = "@(#)vfontedpr.c 5.2 (Berkeley) %G%";
76797561	9	#endif not lint
edd148a9	10
0b79a041 BJ	11	#include <ctype.h>
	12	#include <stdio.h>
	13	#include <sys/types.h>
	14	#include <sys/stat.h>
	15
a388f2af BJ	16	#define boolean int
	17	#define TRUE 1
	18	#define FALSE 0
	19	#define NIL 0
d72dd43f DP	20	#define STANDARD 0
d72dd43f DP	21	#define ALTERNATE 1
a388f2af	22
0b79a041 BJ	23	/*
	24	* Vfontedpr.
	25	*
a388f2af	26	* Dave Presotto 1/12/81 (adapted from an earlier version by Bill Joy)
f5fa559c BJ	27	*
f5fa559c BJ	28	*/
f5fa559c BJ	29
	30	#define STRLEN 10 /* length of strings introducing things */
	31	#define PNAMELEN 40 /* length of a function/procedure name */
a388f2af	32	#define PSMAX 20 /* size of procedure name stacking */
f5fa559c	33
a388f2af	34	/* regular expression routines */
b48967e6	35
a388f2af BJ	36	char expmatch(); / match a string to an expression */
	37	char STRNCMP(); / a different kindof strncmp */
	38	char convexp(); / convert expression to internal form */
1a8c1b81	39	char *tgetstr();
a388f2af BJ	40
a388f2af BJ	41	boolean isproc();
f5fa559c	42
f5fa559c	43
0b79a041	44	char *ctime();
a388f2af BJ	45
	46	/*
	47	* The state variables
	48	*/
	49
	50	boolean incomm; /* in a comment of the primary type */
	51	boolean instr; /* in a string constant */
	52	boolean inchr; /* in a string constant */
	53	boolean nokeyw = FALSE; /* no keywords being flagged */
	54	boolean index = FALSE; /* form an index */
	55	boolean filter = FALSE; /* act as a filter (like eqn) */
	56	boolean pass = FALSE; /* when acting as a filter, pass indicates
	57	* whether we are currently processing
	58	* input.
	59	*/
	60	boolean prccont; /* continue last procedure */
d72dd43f	61	int comtype; /* type of comment */
0b79a041	62	int margin;
a388f2af BJ	63	int psptr; /* the stack index of the current procedure */
	64	char pstack[PSMAX][PNAMELEN+1]; /* the procedure name stack */
	65	int plstack[PSMAX]; /* the procedure nesting level stack */
	66	int blklevel; /* current nesting level */
	67	char defsfile = "/usr/lib/vgrindefs"; / name of language definitions file */
	68	char pname[BUFSIZ+1];
b48967e6	69
a388f2af BJ	70	/*
	71	* The language specific globals
	72	*/
	73
	74	char language = "c"; / the language indicator */
	75	char l_keywds[BUFSIZ/2]; / keyword table address */
	76	char l_prcbeg; / regular expr for procedure begin */
	77	char l_combeg; / string introducing a comment */
	78	char l_comend; / string ending a comment */
d72dd43f DP	79	char l_acmbeg; / string introducing a comment */
d72dd43f DP	80	char l_acmend; / string ending a comment */
a388f2af BJ	81	char l_blkbeg; / string begining of a block */
	82	char l_blkend; / string ending a block */
	83	char l_strbeg; / delimiter for string constant */
	84	char l_strend; / delimiter for string constant */
	85	char l_chrbeg; / delimiter for character constant */
	86	char l_chrend; / delimiter for character constant */
	87	char l_escape; /* character used to escape characters */
	88	boolean l_toplex; /* procedures only defined at top lex level */
	89
	90	/*
	91	* global variables also used by expmatch
	92	*/
	93	boolean _escaped; /* if last character was an escape */
	94	char _start; / start of the current string */
	95	boolean l_onecase; /* upper and lower case are equivalent */
f5fa559c BJ	96
f5fa559c BJ	97	#define ps(x) printf("%s", x)
0b79a041 BJ	98
0b79a041 BJ	99	main(argc, argv)
a388f2af BJ	100	int argc;
a388f2af BJ	101	char *argv[];
0b79a041	102	{
a388f2af BJ	103	int lineno;
	104	char *fname = "";
	105	char *ptr;
	106	struct stat stbuf;
	107	char buf[BUFSIZ];
	108	char strings[2 * BUFSIZ];
	109	char defs[2 * BUFSIZ];
	110	int needbp = 0;
	111
	112	argc--, argv++;
	113	do {
	114	char *cp;
	115	int i;
	116
	117	if (argc > 0) {
	118	if (!strcmp(argv[0], "-h")) {
	119	if (argc == 1) {
	120	printf("'ds =H\n");
	121	argc = 0;
	122	goto rest;
0b79a041	123	}
a388f2af	124	printf("'ds =H %s\n", argv[1]);
91146c92 DP	125	argc--, argv++;
91146c92 DP	126	argc--, argv++;
a388f2af BJ	127	if (argc > 0)
	128	continue;
	129	goto rest;
	130	}
	131
	132	/* act as a filter like eqn */
	133	if (!strcmp(argv[0], "-f")) {
	134	filter++;
	135	argv[0] = argv[argc-1];
	136	argv[argc-1] = "-";
	137	continue;
	138	}
	139
	140	/* take input from the standard place */
	141	if (!strcmp(argv[0], "-")) {
	142	argc = 0;
	143	goto rest;
	144	}
	145
	146	/* build an index */
	147	if (!strcmp(argv[0], "-x")) {
	148	index++;
	149	argv[0] = "-n";
	150	}
	151
	152	/* indicate no keywords */
	153	if (!strcmp(argv[0], "-n")) {
	154	nokeyw++;
	155	argc--, argv++;
	156	continue;
	157	}
	158
	159	/* specify the font size */
	160	if (!strncmp(argv[0], "-s", 2)) {
	161	i = 0;
	162	cp = argv[0] + 2;
	163	while (*cp)
	164	i = i * 10 + (*cp++ - '0');
	165	printf("'ps %d\n'vs %d\n", i, i+1);
	166	argc--, argv++;
	167	continue;
	168	}
	169
	170	/* specify the language */
	171	if (!strncmp(argv[0], "-l", 2)) {
	172	language = argv[0]+2;
	173	argc--, argv++;
	174	continue;
	175	}
	176
	177	/* specify the language description file */
	178	if (!strncmp(argv[0], "-d", 2)) {
	179	defsfile = argv[1];
	180	argc--, argv++;
	181	argc--, argv++;
	182	continue;
	183	}
	184
	185	/* open the file for input */
	186	if (freopen(argv[0], "r", stdin) == NULL) {
	187	perror(argv[0]);
	188	exit(1);
	189	}
	190	if (index)
191	printf("'ta 4i 4.25i 5.5iR\n'in .5i\n");
192	fname = argv[0];
193	argc--, argv++;
194	}
195	rest:
196
197	/*
198	* get the language definition from the defs file
199	*/
200	i = tgetent (defs, language, defsfile);
201	if (i == 0) {
202	fprintf (stderr, "no entry for language %s\n", language);
203	exit (0);
204	} else if (i < 0) {
205	fprintf (stderr, "cannot find vgrindefs file %s\n", defsfile);
206	exit (0);
207	}
208	cp = strings;
209	if (tgetstr ("kw", &cp) == NIL)
210	nokeyw = TRUE;
211	else {
212	char **cpp;
213
214	cpp = l_keywds;
215	cp = strings;
216	while (*cp) {
217	while (cp == ' ' \|\| cp =='\t')
218	*cp++ = NULL;
219	if (*cp)
220	*cpp++ = cp;
221	while (cp != ' ' && cp != '\t' && *cp)
222	cp++;
223	}
224	*cpp = NIL;
225	}
226	cp = buf;
227	l_prcbeg = convexp (tgetstr ("pb", &cp));
228	cp = buf;
229	l_combeg = convexp (tgetstr ("cb", &cp));
230	cp = buf;
231	l_comend = convexp (tgetstr ("ce", &cp));
232	cp = buf;
d72dd43f DP	233	l_acmbeg = convexp (tgetstr ("ab", &cp));
	234	cp = buf;
	235	l_acmend = convexp (tgetstr ("ae", &cp));
	236	cp = buf;
a388f2af BJ	237	l_strbeg = convexp (tgetstr ("sb", &cp));
	238	cp = buf;
	239	l_strend = convexp (tgetstr ("se", &cp));
	240	cp = buf;
	241	l_blkbeg = convexp (tgetstr ("bb", &cp));
	242	cp = buf;
	243	l_blkend = convexp (tgetstr ("be", &cp));
	244	cp = buf;
	245	l_chrbeg = convexp (tgetstr ("lb", &cp));
	246	cp = buf;
	247	l_chrend = convexp (tgetstr ("le", &cp));
	248	l_escape = '\\';
	249	l_onecase = tgetflag ("oc");
	250	l_toplex = tgetflag ("tl");
d72dd43f	251
a388f2af BJ	252	/* initialize the program */
	253
	254	incomm = FALSE;
	255	instr = FALSE;
	256	inchr = FALSE;
	257	_escaped = FALSE;
	258	blklevel = 0;
	259	for (psptr=0; psptr<PSMAX; psptr++) {
	260	pstack[psptr][0] = NULL;
	261	plstack[psptr] = 0;
	262	}
	263	psptr = -1;
	264	ps("'-F\n");
	265	if (!filter) {
	266	printf(".ds =F %s\n", fname);
91146c92 DP	267	ps("'wh 0 vH\n");
91146c92 DP	268	ps("'wh -1i vF\n");
a388f2af BJ	269	}
	270	if (needbp) {
	271	needbp = 0;
	272	printf(".()\n");
	273	printf(".bp\n");
	274	}
546e1f78 DS	275	if (!filter) {
	276	fstat(fileno(stdin), &stbuf);
	277	cp = ctime(&stbuf.st_mtime);
	278	cp[16] = '\0';
	279	cp[24] = '\0';
	280	printf(".ds =M %s %s\n", cp+4, cp+20);
	281	}
a388f2af BJ	282
	283	/*
	284	* MAIN LOOP!!!
	285	*/
	286	while (fgets(buf, sizeof buf, stdin) != NULL) {
	287	if (buf[0] == '\f') {
	288	printf(".bp\n");
	289	}
	290	if (buf[0] == '.') {
	291	printf("%s", buf);
	292	if (!strncmp (buf+1, "vS", 2))
	293	pass = TRUE;
	294	if (!strncmp (buf+1, "vE", 2))
	295	pass = FALSE;
	296	continue;
	297	}
	298	prccont = FALSE;
	299	if (!filter \|\| pass)
	300	putScp(buf);
	301	else
	302	printf("%s", buf);
	303	if (prccont && (psptr >= 0)) {
	304	ps("'FC ");
	305	ps(pstack[psptr]);
	306	ps("\n");
	307	}
	308	#ifdef DEBUG
	309	printf ("com %o str %o chr %o ptr %d\n", incomm, instr, inchr, psptr);
	310	#endif
	311	margin = 0;
	312	}
	313	needbp = 1;
	314	} while (argc > 0);
	315	exit(0);
0b79a041 BJ	316	}
0b79a041 BJ	317
0b79a041 BJ	318	#define isidchr(c) (isalnum(c) \|\| (c) == '_')
	319
	320	putScp(os)
a388f2af	321	char *os;
0b79a041	322	{
a388f2af BJ	323	register char s = os; / pointer to unmatched string */
a388f2af BJ	324	char dummy[BUFSIZ]; /* dummy to be used by expmatch */
a388f2af	325	char comptr; / end of a comment delimiter */
d72dd43f	326	char acmptr; / end of a comment delimiter */
a388f2af BJ	327	char strptr; / end of a string delimiter */
	328	char chrptr; / end of a character const delimiter */
	329	char blksptr; / end of a lexical block start */
	330	char blkeptr; / end of a lexical block end */
	331
	332	_start = os; /* remember the start for expmatch */
	333	_escaped = FALSE;
	334	if (nokeyw \|\| incomm \|\| instr)
	335	goto skip;
	336	if (isproc(s)) {
	337	ps("'FN ");
	338	ps(pname);
09aabb70	339	ps("\n");
a388f2af BJ	340	if (psptr < PSMAX) {
	341	++psptr;
	342	strncpy (pstack[psptr], pname, PNAMELEN);
	343	pstack[psptr][PNAMELEN] = NULL;
a388f2af BJ	344	plstack[psptr] = blklevel;
	345	}
	346	}
0b79a041	347	skip:
a388f2af	348	do {
a388f2af BJ	349	/* check for string, comment, blockstart, etc */
	350	if (!incomm && !instr && !inchr) {
	351
	352	blkeptr = expmatch (s, l_blkend, dummy);
	353	blksptr = expmatch (s, l_blkbeg, dummy);
	354	comptr = expmatch (s, l_combeg, dummy);
d72dd43f	355	acmptr = expmatch (s, l_acmbeg, dummy);
a388f2af BJ	356	strptr = expmatch (s, l_strbeg, dummy);
	357	chrptr = expmatch (s, l_chrbeg, dummy);
	358
	359	/* start of a comment? */
	360	if (comptr != NIL)
	361	if ((comptr < strptr \|\| strptr == NIL)
d72dd43f	362	&& (comptr < acmptr \|\| acmptr == NIL)
a388f2af BJ	363	&& (comptr < chrptr \|\| chrptr == NIL)
	364	&& (comptr < blksptr \|\| blksptr == NIL)
	365	&& (comptr < blkeptr \|\| blkeptr == NIL)) {
	366	putKcp (s, comptr-1, FALSE);
	367	s = comptr;
	368	incomm = TRUE;
d72dd43f DP	369	comtype = STANDARD;
	370	if (s != os)
	371	ps ("\\c");
	372	ps ("\\c\n'+C\n");
	373	continue;
	374	}
	375
	376	/* start of a comment? */
	377	if (acmptr != NIL)
	378	if ((acmptr < strptr \|\| strptr == NIL)
	379	&& (acmptr < chrptr \|\| chrptr == NIL)
	380	&& (acmptr < blksptr \|\| blksptr == NIL)
	381	&& (acmptr < blkeptr \|\| blkeptr == NIL)) {
	382	putKcp (s, acmptr-1, FALSE);
	383	s = acmptr;
	384	incomm = TRUE;
	385	comtype = ALTERNATE;
a388f2af BJ	386	if (s != os)
	387	ps ("\\c");
	388	ps ("\\c\n'+C\n");
	389	continue;
cca8d17e	390	}
a388f2af BJ	391
	392	/* start of a string? */
	393	if (strptr != NIL)
	394	if ((strptr < chrptr \|\| chrptr == NIL)
d81ba424 BJ	395	&& (strptr < blksptr \|\| blksptr == NIL)
d81ba424 BJ	396	&& (strptr < blkeptr \|\| blkeptr == NIL)) {
a388f2af BJ	397	putKcp (s, strptr-1, FALSE);
	398	s = strptr;
	399	instr = TRUE;
	400	continue;
0b79a041	401	}
b48967e6	402
a388f2af BJ	403	/* start of a character string? */
a388f2af BJ	404	if (chrptr != NIL)
d81ba424 BJ	405	if ((chrptr < blksptr \|\| blksptr == NIL)
d81ba424 BJ	406	&& (chrptr < blkeptr \|\| blkeptr == NIL)) {
a388f2af BJ	407	putKcp (s, chrptr-1, FALSE);
	408	s = chrptr;
	409	inchr = TRUE;
	410	continue;
0b79a041	411	}
b48967e6	412
a388f2af BJ	413	/* end of a lexical block */
	414	if (blkeptr != NIL) {
	415	if (blkeptr < blksptr \|\| blksptr == NIL) {
	416	putKcp (s, blkeptr - 1, FALSE);
	417	s = blkeptr;
	418	blklevel--;
	419	if (psptr >= 0 && plstack[psptr] >= blklevel) {
b48967e6	420
a388f2af	421	/* end of current procedure */
b48967e6	422	if (s != os)
a388f2af BJ	423	ps ("\\c");
	424	ps ("\\c\n'-F\n");
	425	blklevel = plstack[psptr];
	426
	427	/* see if we should print the last proc name */
	428	if (--psptr >= 0)
	429	prccont = TRUE;
	430	else
	431	psptr = -1;
	432	}
	433	continue;
0b79a041	434	}
a388f2af	435	}
b48967e6	436
a388f2af BJ	437	/* start of a lexical block */
	438	if (blksptr != NIL) {
	439	putKcp (s, blksptr - 1, FALSE);
	440	s = blksptr;
	441	blklevel++;
	442	continue;
	443	}
	444
	445	/* check for end of comment */
	446	} else if (incomm) {
d72dd43f DP	447	comptr = expmatch (s, l_comend, dummy);
	448	acmptr = expmatch (s, l_acmend, dummy);
	449	if (((comtype == STANDARD) && (comptr != NIL)) \|\|
	450	((comtype == ALTERNATE) && (acmptr != NIL))) {
	451	if (comtype == STANDARD) {
	452	putKcp (s, comptr-1, TRUE);
	453	s = comptr;
	454	} else {
	455	putKcp (s, acmptr-1, TRUE);
	456	s = acmptr;
	457	}
a388f2af BJ	458	incomm = FALSE;
	459	ps("\\c\n'-C\n");
	460	continue;
	461	} else {
1a8c1b81	462	putKcp (s, s + strlen(s) -1, TRUE);
a388f2af BJ	463	s = s + strlen(s);
	464	continue;
	465	}
	466
	467	/* check for end of string */
	468	} else if (instr) {
	469	if ((strptr = expmatch (s, l_strend, dummy)) != NIL) {
	470	putKcp (s, strptr-1, TRUE);
	471	s = strptr;
	472	instr = FALSE;
	473	continue;
	474	} else {
	475	putKcp (s, s+strlen(s)-1, TRUE);
	476	s = s + strlen(s);
	477	continue;
	478	}
	479
	480	/* check for end of character string */
	481	} else if (inchr) {
	482	if ((chrptr = expmatch (s, l_chrend, dummy)) != NIL) {
	483	putKcp (s, chrptr-1, TRUE);
	484	s = chrptr;
	485	inchr = FALSE;
	486	continue;
	487	} else {
	488	putKcp (s, s+strlen(s)-1, TRUE);
	489	s = s + strlen(s);
	490	continue;
	491	}
0b79a041	492	}
a388f2af BJ	493
	494	/* print out the line */
	495	putKcp (s, s + strlen(s) -1, FALSE);
	496	s = s + strlen(s);
	497	} while (*s);
0b79a041 BJ	498	}
0b79a041 BJ	499
a388f2af BJ	500	putKcp (start, end, force)
	501	char start; / start of string to write */
	502	char end; / end of string to write */
	503	boolean force; /* true if we should force nokeyw */
	504	{
	505	int i;
d22f197f	506	int xfld = 0;
a388f2af BJ	507
a388f2af BJ	508	while (start <= end) {
d22f197f BJ	509	if (index) {
	510	if (start == ' ' \|\| start == '\t') {
	511	if (xfld == 0)
	512	printf("\ 1");
	513	printf("\t");
	514	xfld = 1;
	515	while (start == ' ' \|\| start == '\t')
	516	start++;
	517	continue;
	518	}
	519	}
a388f2af BJ	520
	521	/* take care of nice tab stops */
	522	if (*start == '\t') {
	523	while (*start == '\t')
	524	start++;
	525	i = tabs(_start, start) - margin / 8;
	526	printf("\\h'\|%dn'", i * 10 + 1 - margin % 8);
	527	continue;
	528	}
	529
	530	if (!nokeyw && !force)
	531	if ((start == '#' \|\| isidchr(start))
	532	&& (start == _start \|\| !isidchr(start[-1]))) {
	533	i = iskw(start);
	534	if (i > 0) {
	535	ps("\\*(+K");
	536	do
	537	putcp(*start++);
	538	while (--i > 0);
	539	ps("\\*(-K");
	540	continue;
	541	}
	542	}
	543
	544	putcp (*start++);
	545	}
	546	}
	547
	548
0b79a041	549	tabs(s, os)
a388f2af	550	char s, os;
0b79a041 BJ	551	{
0b79a041 BJ	552
a388f2af	553	return (width(s, os) / 8);
0b79a041 BJ	554	}
	555
	556	width(s, os)
	557	register char s, os;
	558	{
	559	register int i = 0;
	560
	561	while (s < os) {
	562	if (*s == '\t') {
	563	i = (i + 8) &~ 7;
	564	s++;
	565	continue;
	566	}
	567	if (*s < ' ')
	568	i += 2;
	569	else
	570	i++;
	571	s++;
	572	}
	573	return (i);
	574	}
	575
	576	putcp(c)
	577	register int c;
	578	{
	579
	580	switch(c) {
	581
a388f2af BJ	582	case 0:
	583	break;
	584
	585	case '\f':
	586	break;
	587
0b79a041 BJ	588	case '{':
	589	ps("\\(+K{\\(-K");
	590	break;
	591
	592	case '}':
	593	ps("\\(+K}\\(-K");
	594	break;
	595
	596	case '\\':
	597	ps("\\e");
	598	break;
	599
	600	case '_':
	601	ps("\\*_");
	602	break;
	603
	604	case '-':
	605	ps("\\*-");
	606	break;
	607
	608	case '`':
	609	ps("\\`");
	610	break;
	611
	612	case '\'':
	613	ps("\\'");
	614	break;
	615
	616	case '.':
	617	ps("\\&.");
	618	break;
	619
341765b5 BJ	620	case '*':
	621	ps("\\fI*\\fP");
	622	break;
	623
a388f2af	624	case '/':
341765b5	625	ps("\\fI\\h'\\w' 'u-\\w'/'u'/\\fP");
a388f2af BJ	626	break;
a388f2af BJ	627
0b79a041 BJ	628	default:
	629	if (c < 040)
	630	putchar('^'), c \|= '@';
	631	case '\t':
	632	case '\n':
	633	putchar(c);
	634	}
	635	}
	636
a388f2af BJ	637	/*
a388f2af BJ	638	* look for a process beginning on this line
b48967e6	639	*/
a388f2af BJ	640	boolean
	641	isproc(s)
	642	char *s;
b48967e6	643	{
a388f2af BJ	644	pname[0] = NULL;
	645	if (!l_toplex \|\| blklevel == 0)
	646	if (expmatch (s, l_prcbeg, pname) != NIL) {
	647	return (TRUE);
	648	}
	649	return (FALSE);
b48967e6 BJ	650	}
b48967e6 BJ	651
a388f2af	652
b48967e6 BJ	653	/* iskw - check to see if the next word is a keyword
	654	*/
	655
0b79a041 BJ	656	iskw(s)
	657	register char *s;
	658	{
a388f2af	659	register char **ss = l_keywds;
0b79a041 BJ	660	register int i = 1;
	661	register char *cp = s;
	662
	663	while (++cp, isidchr(*cp))
	664	i++;
	665	while (cp = *ss++)
a388f2af	666	if (!STRNCMP(s,cp,i) && !isidchr(cp[i]))
0b79a041 BJ	667	return (i);
	668	return (0);
	669	}