1 #include "e.h"
2 #include <ctype.h>
3
setsize(char * p)4 void setsize(char *p) /* set size as found in p */
5 {
6 nszstack++;
7 szstack[nszstack] = 0; /* assume relative */
8 if (*p == '+') {
9 ps += atoi(p+1);
10 if (szstack[nszstack-1] != 0) /* propagate absolute size */
11 szstack[nszstack] = ps;
12 } else if (*p == '-') {
13 ps -= atoi(p+1);
14 if (szstack[nszstack-1] != 0)
15 szstack[nszstack] = ps;
16 } else if (isdigit(*p)) {
17 if (szstack[nszstack-1] == 0)
18 printf(".nr %d \\n(.s\n", 99-nszstack);
19 else
20 printf(".nr %d %d\n", 99-nszstack, ps);
21 szstack[nszstack] = ps = atoi(p);
22 } else {
23 ERROR "illegal size %s ignored", p WARNING;
24 }
25 dprintf(".\tsetsize %s; ps = %d\n", p, ps);
26 }
27
size(int p1,int p2)28 void size(int p1, int p2)
29 {
30 /* old size in p1, new in ps */
31 yyval = p2;
32 dprintf(".\tS%d <- \\s%d %d \\s%d; b=%g, h=%g\n",
33 yyval, ps, p2, p1, ebase[yyval], eht[yyval]);
34 if (szstack[nszstack] != 0) {
35 printf(".ds %d %s\\*(%d\\s\\n(%d\n", yyval, ABSPS(ps), p2, 99-nszstack);
36 } else
37 printf(".ds %d %s\\*(%d%s\n", yyval, DPS(p1,ps), p2, DPS(ps,p1));
38 nszstack--;
39 ps = p1;
40 }
41
globsize(void)42 void globsize(void)
43 {
44 char temp[20];
45
46 getstr(temp, sizeof(temp));
47 if (temp[0] == '+') {
48 gsize += atoi(temp+1);
49 if (szstack[0] != 0)
50 szstack[0] = gsize;
51 } else if (temp[0] == '-') {
52 gsize -= atoi(temp+1);
53 if (szstack[0] != 0)
54 szstack[0] = gsize;
55 } else if (isdigit(temp[0])) {
56 gsize = atoi(temp);
57 szstack[0] = gsize;
58 printf(".nr 99 \\n(.s\n");
59 } else {
60 ERROR "illegal gsize %s ignored", temp WARNING;
61 }
62 yyval = eqnreg = 0;
63 ps = gsize;
64 if (gsize < 12 && !dps_set) /* sub and sup size change */
65 deltaps = gsize / 3;
66 else if (gsize < 20)
67 deltaps = gsize / 4;
68 else
69 deltaps = gsize / 5;
70 }
71