BSD 4_4 release

[unix-history] / usr / src / old / eqn / common_source / move.c

/*-
 * Copyright (c) 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * This module is believed to contain source code proprietary to AT&T.
 * Use and redistribution is subject to the Berkeley Software License
 * Agreement and your Software Agreement with AT&T (Western Electric).
 */

#ifndef lint
static char sccsid[] = "@(#)move.c	4.4 (Berkeley) 4/17/91";
#endif /* not lint */

# include "e.h"
# include "e.def"

move(dir, amt, p) int dir, amt, p; {
	int a;

	yyval = p;
#ifndef NEQN
	a = VERT( (EFFPS(ps) * 6 * amt) / 100);
#else NEQN
	a = VERT( (amt+49)/50 );	/* nearest number of half-lines */
#endif NEQN
	printf(".ds %d ", yyval);
	if( dir == FWD || dir == BACK )	/* fwd, back */
		printf("\\h'%s%du'\\*(%d\n", (dir==BACK) ? "-" : "", a, p);
	else if (dir == UP)
		printf("\\v'-%du'\\*(%d\\v'%du'\n", a, p, a);
	else if (dir == DOWN)
		printf("\\v'%du'\\*(%d\\v'-%du'\n", a, p, a);
	if(dbg)printf(".\tmove %d dir %d amt %d; h=%d b=%d\n", 
		p, dir, a, eht[yyval], ebase[yyval]);
}