*/
			*q = '\0';
			if (bslashmode)
			{
				bslashmode = FALSE;

				/* kludge \! for naive users */
				if (cmntcnt > 0)
				{
					c = NOCHAR;
					continue;
				}
				else if (c != '!' || state == QST)
				{
					*q++ = '\\';
					continue;
				}
			}

			if (c == '\\')
			{
				bslashmode = TRUE;
			}
			else if (state == QST)
			{
				/* do nothing, just avoid next clauses */
			}
			else if (c == '(')
			{
				cmntcnt++;
				c = NOCHAR;
			}
			else if (c == ')')
			{
				if (cmntcnt <= 0)
				{
					usrerr("653 Unbalanced ')'");
					c = NOCHAR;
				}
				else
					cmntcnt--;
			}
			else if (cmntcnt > 0)
				c = NOCHAR;
			else if (c == '<')
				anglecnt++;
			else if (c == '>')
			{
				if (anglecnt <= 0)
				{
					usrerr("653 Unbalanced '>'");
					c = NOCHAR;
				}
				else
					anglecnt--;
			}
			else if (delim == ' ' && isascii(c) && isspace(c))
				c = ' ';

			if (c == NOCHAR)
				continue;

			/* see if this is end of input */
			if (c == delim && anglecnt <= 0 && state != QST)
				break;

			newstate = StateTab[state][toktype(c)];
			if (tTd(22, 101))
				printf("ns=%02o\n", newstate);
			state = newstate & TYPE;
			if (bitset(M, newstate))
				c = NOCHAR;
			if (bitset(B, newstate))
				break;
		}

		/* new token */
		if (tok != q)
		{
			*q++ = '\0';
			if (tTd(22, 36))
			{
				printf("tok=");
				xputs(tok);
				(void) putchar('\n');
			}
			if (avp >= &av[MAXATOM])
			{
				syserr("553 prescan: too many tokens");
				goto returnnull;
			}
			if (q - tok > MAXNAME)
			{
				syserr("553 prescan: token too long");
				goto returnnull;
			}
			*avp++ = tok;
		}
	} while (c != '\0' && (c != delim || anglecnt > 0));
	*avp = NULL;
	p--;
	if (delimptr != NULL)
		*delimptr = p;
	if (tTd(22, 12))
	{
		printf("prescan==>");
		printav(av);
	}
	CurEnv->e_to = saveto;
	if (av[0] == NULL)
	{
		if (tTd(22, 1))
			printf("prescan: null leading token\n");
		return (NULL);
	}
	return (av);
}
/*
**  REWRITE -- apply rewrite rules to token vector.
**
**	This routine is an ordered production system.  Each rewrite
**	rule has a LHS (called the pattern) and a RHS (called the
**	rewrite); 'rwr' points the the current rewrite rule.
**
**	For each rewrite rule, 'avp' points the address vector we
**	are trying to match against, and 'pvp' points to the pattern.
**	If pvp points to a special match value (MATCHZANY, MATCHANY,
**	MATCHONE, MATCHCLASS, MATCHNCLASS) then the address in avp
**	matched is saved away in the match vector (pointed to by 'mvp').
**
**	When a match between avp & pvp does not match, we try to
**	back out.  If we back up over MATCHONE, MATCHCLASS, or MATCHNCLASS
**	we must also back out the match in mvp.  If we reach a
**	MATCHANY or MATCHZANY we just extend the match and start
**	over again.
**
**	When we finally match, we rewrite the address vector
**	and try over again.
**
**	Parameters:
**		pvp -- pointer to token vector.
**		ruleset -- the ruleset to use for rewriting.
**		reclevel -- recursion level (to catch loops).
**		e -- the current envelope.
**
**	Returns:
**		A status code.  If EX_TEMPFAIL, higher level code should
**			attempt recovery.
**
**	Side Effects:
**		pvp is modified.
*/

struct match
{
	char	**first;	/* first token matched */
	char	**last;		/* last token matched */
	char	**pattern;	/* pointer to pattern */
};

# define MAXMATCH	9	/* max params per rewrite */

# ifndef MAXRULERECURSION
#  define MAXRULERECURSION	50	/* max recursion depth */
# endif


int
rewrite(pvp, ruleset, reclevel, e)
	char **pvp;
	int ruleset;
	int reclevel;
	register ENVELOPE *e;
{
	register char *ap;		/* address pointer */
	register char *rp;		/* rewrite pointer */
	register char **avp;		/* address vector pointer */
	register char **rvp;		/* rewrite vector pointer */
	register struct match *mlp;	/* cur ptr into mlist */
	register struct rewrite *rwr;	/* pointer to current rewrite rule */
	int ruleno;			/* current rule number */
	int rstat = EX_OK;		/* return status */
	int loopcount;
	struct match mlist[MAXMATCH];	/* stores match on LHS */
	char *npvp[MAXATOM+1];		/* temporary space for rebuild */

	if (OpMe, '/')))
			cp = source;
		else
			++cp;
		(void)sprintf(path, "%s/%s", target, cp);
		target = path;
	}

	/* Remove existing file if -f is was specified */
	if (forceflag && unlink (target) && errno != ENOENT) {
		warn("%s", target);
		return (1);
	}

	if ((*linkf)(source, target)) {
		warn("%s", target);
		return(1);
	}

	return(0);
}

static void
usage()
{
	(void)fprintf(stderr,
	    "usage:\tln [-fs] file1 file2\n\tln [-fs] file ... directory\n");
	exit(1);
}