1 5cedca1b 2004-05-15 devnull # include "e.h"
 2 5cedca1b 2004-05-15 devnull 
 3 5cedca1b 2004-05-15 devnull void fromto(int p1, int p2, int p3)
 4 5cedca1b 2004-05-15 devnull {
 5 5cedca1b 2004-05-15 devnull 	double b, h1, b1, t;
 6 5cedca1b 2004-05-15 devnull 	int subps;
 7 5cedca1b 2004-05-15 devnull 
 8 5cedca1b 2004-05-15 devnull 	yyval = salloc();
 9 5cedca1b 2004-05-15 devnull 	lfont[yyval] = rfont[yyval] = 0;
10 5cedca1b 2004-05-15 devnull 	h1 = eht[yyval] = eht[p1];
11 5cedca1b 2004-05-15 devnull 	b1 = ebase[p1];
12 5cedca1b 2004-05-15 devnull 	b = 0;
13 5cedca1b 2004-05-15 devnull 	subps = ps;
14 5cedca1b 2004-05-15 devnull 	ps += deltaps;
15 5cedca1b 2004-05-15 devnull 	nrwid(p1, ps, p1);
16 5cedca1b 2004-05-15 devnull 	printf(".nr %d \\n(%d\n", yyval, p1);
17 5cedca1b 2004-05-15 devnull 	if (p2 > 0) {
18 5cedca1b 2004-05-15 devnull 		nrwid(p2, subps, p2);
19 5cedca1b 2004-05-15 devnull 		printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p2, yyval, yyval, p2);
20 5cedca1b 2004-05-15 devnull 		eht[yyval] += eht[p2];
21 5cedca1b 2004-05-15 devnull 		b = eht[p2];
22 5cedca1b 2004-05-15 devnull 	}
23 5cedca1b 2004-05-15 devnull 	if (p3 > 0) {
24 5cedca1b 2004-05-15 devnull 		nrwid(p3, subps, p3);
25 5cedca1b 2004-05-15 devnull 		printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p3, yyval, yyval, p3);
26 5cedca1b 2004-05-15 devnull 		eht[yyval] += eht[p3];
27 5cedca1b 2004-05-15 devnull 	}
28 5cedca1b 2004-05-15 devnull 	printf(".ds %d ", yyval);	/* bottom of middle box */
29 5cedca1b 2004-05-15 devnull 	if (p2 > 0) {
30 5cedca1b 2004-05-15 devnull 		t = eht[p2]-ebase[p2]+b1;
31 5cedca1b 2004-05-15 devnull 		printf("\\v'%gm'\\h'\\n(%du-\\n(%du/2u'%s\\*(%d%s", 
32 5cedca1b 2004-05-15 devnull 			REL(t,ps), yyval, p2, DPS(ps,subps), p2, DPS(subps,ps));
33 5cedca1b 2004-05-15 devnull 		printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%gm'\\\n", 
34 5cedca1b 2004-05-15 devnull 			yyval, p2, REL(-t,ps));
35 5cedca1b 2004-05-15 devnull 	}
36 5cedca1b 2004-05-15 devnull 	printf("\\h'\\n(%du-\\n(%du/2u'\\*(%d\\h'\\n(%du-\\n(%du/2u'\\\n", 
37 5cedca1b 2004-05-15 devnull 		yyval, p1, p1, yyval, p1);
38 5cedca1b 2004-05-15 devnull 	if (p3  >0) {
39 5cedca1b 2004-05-15 devnull 		t = h1-b1+ebase[p3];
40 5cedca1b 2004-05-15 devnull 		printf("\\v'%gm'\\h'-\\n(%du-\\n(%du/2u'%s\\*(%d%s\\h'\\n(%du-\\n(%du/2u'\\v'%gm'\\\n", 
41 5cedca1b 2004-05-15 devnull 			REL(-t,ps), yyval, p3, DPS(ps,subps), p3, DPS(subps,ps), yyval, p3, REL(t,ps));
42 5cedca1b 2004-05-15 devnull 	}
43 5cedca1b 2004-05-15 devnull 	printf("\n");
44 5cedca1b 2004-05-15 devnull 	ebase[yyval] = b + b1;
45 5cedca1b 2004-05-15 devnull 	dprintf(".\tS%d <- %d from %d to %d; h=%g b=%g\n", 
46 5cedca1b 2004-05-15 devnull 		yyval, p1, p2, p3, eht[yyval], ebase[yyval]);
47 5cedca1b 2004-05-15 devnull 	sfree(p1);
48 5cedca1b 2004-05-15 devnull 	if (p2 > 0)
49 5cedca1b 2004-05-15 devnull 		sfree(p2);
50 5cedca1b 2004-05-15 devnull 	if (p3 > 0)
51 5cedca1b 2004-05-15 devnull 		sfree(p3);
52 5cedca1b 2004-05-15 devnull }