[unix-history] / usr / src / usr.bin / pascal / pxp / const.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[] = "@(#)const.c	5.1 (Berkeley) %G%";
#endif not lint

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

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

STATIC	int constcnt = -1;

/*
 * The const declaration part
 */
constbeg(l, cline)
	int l, cline;
{

	line = l;
	if (nodecl)
		printoff();
	puthedr();
	putcm();
	ppnl();
	indent();
	ppkw("const");
	ppgoin(DECL);
	constcnt = 0;
	setline(cline);
}

const(cline, cid, cdecl)
	int cline;
	char *cid;
	int *cdecl;
{

	if (constcnt)
		putcm();
	setline(cline);
	ppitem();
	ppid(cid);
	ppsep(" = ");
	gconst(cdecl);
	ppsep(";");
	constcnt++;
	setinfo(cline);
	putcml();
}

constend()
{

	if (constcnt == -1)
		return;
	if (nodecl)
		return;
	if (constcnt == 0)
		ppid("{const decls}");
	ppgoout(DECL);
	constcnt = -1;
}

/*
 * A constant in an expression
 * or a declaration.
 */
gconst(r)
	int *r;
{
	register *cn;

	cn = r;
loop:
	if (cn == NIL) {
		ppid("{constant}");
		return;
	}
	switch (cn[0]) {
		default:
			panic("gconst");
		case T_PLUSC:
			ppop("+");
			cn = cn[1];
			goto loop;
		case T_MINUSC:
			ppop("-");
			cn = cn[1];
			goto loop;
		case T_ID:
			ppid(cn[1]);
			return;
		case T_CBINT:
		case T_CINT:
		case T_CFINT:
			ppnumb(cn[1]);
			if (cn[0] == T_CBINT)
				ppsep("b");
			return;
		case T_CSTRNG:
			ppstr(cn[1]);
			return;
	}
}
Commit	Line	Data
252367af 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
	8	static char sccsid[] = "@(#)const.c 5.1 (Berkeley) %G%";
	9	#endif not lint
	10
9fad0514 PK	11	/*
	12	* pxp - Pascal execution profiler
	13	*
	14	* Bill Joy UCB
	15	* Version 1.2 January 1979
	16	*/
	17
	18	#include "0.h"
	19	#include "tree.h"
	20
f4e01610	21	STATIC int constcnt = -1;
9fad0514 PK	22
	23	/*
	24	* The const declaration part
	25	*/
	26	constbeg(l, cline)
	27	int l, cline;
	28	{
	29
	30	line = l;
	31	if (nodecl)
	32	printoff();
	33	puthedr();
	34	putcm();
	35	ppnl();
	36	indent();
	37	ppkw("const");
	38	ppgoin(DECL);
	39	constcnt = 0;
	40	setline(cline);
	41	}
	42
	43	const(cline, cid, cdecl)
	44	int cline;
	45	char *cid;
	46	int *cdecl;
	47	{
	48
	49	if (constcnt)
	50	putcm();
	51	setline(cline);
	52	ppitem();
	53	ppid(cid);
	54	ppsep(" = ");
	55	gconst(cdecl);
	56	ppsep(";");
	57	constcnt++;
	58	setinfo(cline);
	59	putcml();
	60	}
	61
	62	constend()
	63	{
	64
	65	if (constcnt == -1)
	66	return;
	67	if (nodecl)
	68	return;
	69	if (constcnt == 0)
	70	ppid("{const decls}");
	71	ppgoout(DECL);
	72	constcnt = -1;
	73	}
	74
	75	/*
	76	* A constant in an expression
	77	* or a declaration.
	78	*/
	79	gconst(r)
	80	int *r;
	81	{
	82	register *cn;
	83
	84	cn = r;
	85	loop:
86	if (cn == NIL) {
87	ppid("{constant}");
88	return;
89	}
90	switch (cn[0]) {
91	default:
92	panic("gconst");
93	case T_PLUSC:
94	ppop("+");
95	cn = cn[1];
96	goto loop;
97	case T_MINUSC:
98	ppop("-");
99	cn = cn[1];
100	goto loop;
101	case T_ID:
102	ppid(cn[1]);
103	return;
104	case T_CBINT:
105	case T_CINT:
106	case T_CFINT:
107	ppnumb(cn[1]);
108	if (cn[0] == T_CBINT)
109	ppsep("b");
110	return;
111	case T_CSTRNG:
112	ppstr(cn[1]);
113	return;
114	}
115	}