[unix-history] / usr / src / cmd / pxp / case.c

/* Copyright (c) 1979 Regents of the University of California */
#
/*
 * pxp - Pascal execution profiler
 *
 * Bill Joy UCB
 * Version 1.2 January 1979
 */

#include "0.h"
#include "tree.h"

/*
 * Case statement
 */
caseop(r)
	int *r;
{
	register *cl, *cs, i;
	struct pxcnt scnt;

	savecnt(&scnt);
	ppkw("case");
	ppspac();
	rvalue(r[2], NIL);
	ppspac();
	ppkw("of");
	for (cl = r[3]; cl != NIL;) {
		cs = cl[1];
		if (cs == NIL)
			continue;
		baroff();
		ppgoin(DECL);
		setline(cs[1]);
		ppnl();
		indent();
		ppbra(NIL);
		cs = cs[2];
		if (cs != NIL) {
			i = 0;
			for (;;) {
				gconst(cs[1]);
				cs = cs[2];
				if (cs == NIL)
					break;
				i++;
				if (i == 7) {
					ppsep(",");
					ppitem();
					i = 0;
				} else
					ppsep(", ");
			}
		} else
			ppid("{case label list}");
		ppket(":");
		cs = cl[1];
		cs = cs[3];
		getcnt();
		ppgoin(STAT);
		if (cs != NIL && cs[0] == T_BLOCK) {
			ppnl();
			indent();
			baron();
			ppstbl1(cs, STAT);
			baroff();
			ppstbl2();
			baron();
		} else {
			baron();
			statement(cs);
		}
		ppgoout(STAT);
		ppgoout(DECL);
		cl = cl[2];
		if (cl == NIL)
			break;
		ppsep(";");
	}
	if (rescnt(&scnt))
		getcnt();
	ppnl();
	indent();
	ppkw("end");
}
Commit	Line	Data
49e8dbd7 BJ	1	/* Copyright (c) 1979 Regents of the University of California */
	2	#
	3	/*
	4	* pxp - Pascal execution profiler
	5	*
	6	* Bill Joy UCB
	7	* Version 1.2 January 1979
	8	*/
	9
	10	#include "0.h"
	11	#include "tree.h"
	12
	13	/*
	14	* Case statement
	15	*/
	16	caseop(r)
	17	int *r;
	18	{
	19	register cl, cs, i;
	20	struct pxcnt scnt;
	21
	22	savecnt(&scnt);
	23	ppkw("case");
	24	ppspac();
	25	rvalue(r[2], NIL);
	26	ppspac();
	27	ppkw("of");
	28	for (cl = r[3]; cl != NIL;) {
	29	cs = cl[1];
	30	if (cs == NIL)
	31	continue;
	32	baroff();
	33	ppgoin(DECL);
	34	setline(cs[1]);
	35	ppnl();
	36	indent();
	37	ppbra(NIL);
	38	cs = cs[2];
	39	if (cs != NIL) {
	40	i = 0;
	41	for (;;) {
	42	gconst(cs[1]);
	43	cs = cs[2];
	44	if (cs == NIL)
	45	break;
	46	i++;
	47	if (i == 7) {
	48	ppsep(",");
	49	ppitem();
	50	i = 0;
	51	} else
	52	ppsep(", ");
	53	}
	54	} else
	55	ppid("{case label list}");
	56	ppket(":");
	57	cs = cl[1];
	58	cs = cs[3];
	59	getcnt();
	60	ppgoin(STAT);
	61	if (cs != NIL && cs[0] == T_BLOCK) {
	62	ppnl();
	63	indent();
	64	baron();
65	ppstbl1(cs, STAT);
66	baroff();
67	ppstbl2();
68	baron();
69	} else {
70	baron();
71	statement(cs);
72	}
73	ppgoout(STAT);
74	ppgoout(DECL);
75	cl = cl[2];
76	if (cl == NIL)
77	break;
78	ppsep(";");
79	}
80	if (rescnt(&scnt))
81	getcnt();
82	ppnl();
83	indent();
84	ppkw("end");
85	}