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

/*-
 * Copyright (c) 1980 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       5.2 (Berkeley) 4/16/91";
#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(":");
}