4.4BSD/usr/src/usr.bin/pascal/pxp/lab.c

/*-
 * Copyright (c) 1980, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)lab.c	8.1 (Berkeley) 6/6/93";
#endif /* not lint */

/*
 * pxp - Pascal execution profiler
 *
 * Bill Joy UCB
 * Version 1.2 January 1979
 */

#include "0.h"

/*
 * Label declaration part
 */
label(r, l)
	int *r, l;
{
	register *ll;

	if (nodecl)
		printoff();
	puthedr();
	setline(l);
	ppnl();
	indent();
	ppkw("label");
	ppgoin(DECL);
	ppnl();
	indent();
	ppbra(NIL);
	ll = r;
	if (ll != NIL)
		for (;;) {
			pplab(ll[1]);
			ll = ll[2];
			if (ll == NIL)
				break;
			ppsep(", ");
		}
	else
		ppid("{label list}");
	ppket(";");
	putcml();
	ppgoout(DECL);
}

/*
 * Goto statement
 */
gotoop(s)
	char *s;
{

	gocnt++;
	ppkw("goto");
	ppspac();
	pplab(s);
}

/*
 * A label on a statement
 */
labeled(s)
	char *s;
{

	linopr();
	indentlab();
	pplab(s);
	ppsep(":");
}