size.c (1724B)
1 #include "e.h" 2 #include <ctype.h> 3 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((unsigned char)*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 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 (int)yyval, ps, p2, p1, ebase[yyval], eht[yyval]); 34 if (szstack[nszstack] != 0) { 35 printf(".ds %d %s\\*(%d\\s\\n(%d\n", (int)yyval, ABSPS(ps), p2, 99-nszstack); 36 } else 37 printf(".ds %d %s\\*(%d%s\n", (int)yyval, DPS(p1,ps), p2, DPS(ps,p1)); 38 nszstack--; 39 ps = p1; 40 } 41 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((unsigned char)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 }