2.11BSD#431 - /usr/src/games/number.c

   1: 
   2: static char sccsid[] = "	number.c	4.1	82/10/24	";
   3: 
   4: #include <stdio.h>
   5: 
   6: int flag;
   7: int max = 21;
   8: char    *card[] =
   9: {
  10:     "hundred",
  11:     "thousand",
  12:     "million",
  13:     "billion",
  14:     "trillion",
  15:     "quadrillion",
  16:     "quintillion",
  17:     "sextillion",
  18:     "septillion",
  19:     "octillion",
  20:     "nonillion",
  21:     "decillion",
  22:     "undecillion",
  23:     "duodecillion",
  24:     "tredecillion",
  25:     "quattuordecillion",
  26:     "quindecillion",
  27:     "sexdecillion",
  28:     "septendecillion",
  29:     "octodecillion",
  30:     "novemdecillion",
  31:     "vigintillion"
  32: };
  33: char *unit[] = {
  34:     "zero",
  35:     "one",
  36:     "two",
  37:     "three",
  38:     "four",
  39:     "five",
  40:     "six",
  41:     "seven",
  42:     "eight",
  43:     "nine"
  44: };
  45: char *teen[] = {
  46:     "ten",
  47:     "eleven",
  48:     "twelve",
  49:     "thirteen",
  50:     "fourteen",
  51:     "fifteen",
  52:     "sixteen",
  53:     "seventeen",
  54:     "eighteen",
  55:     "nineteen"
  56: };
  57: char *decade[] = {
  58:     "zero",
  59:     "ten",
  60:     "twenty",
  61:     "thirty",
  62:     "forty",
  63:     "fifty",
  64:     "sixty",
  65:     "seventy",
  66:     "eighty",
  67:     "ninety"
  68: };
  69: char    line[100];
  70: main()
  71: {
  72:     register c, i, fraction;
  73:     int r;
  74: 
  75: 
  76:     fraction = 0;
  77:     while((c = getchar()) != EOF) {
  78:         if(!digit(c))  {
  79:             fraction = (c == '.');
  80:             putchar(c);
  81:             continue;
  82:         }
  83:         if(fraction) {
  84:             while(digit(c)) {
  85:                 putchar(' ');
  86:                 putchar(c);
  87:                 if((c=getchar()) == EOF)
  88:                     exit(1);
  89:             }
  90:             putchar(' ');
  91:             goto out;
  92:         }
  93: 
  94:         putchar(' ');
  95:         i = 0;
  96:         line[i++] = '0';
  97:         line[i++] = '0';
  98:         while(c == '0')
  99:             if((c=getchar()) == EOF)
 100:                 exit(1);
 101:         while(digit(c)) {
 102:             if(i < 98)
 103:                 line[i++] = c;
 104:             if((c=getchar()) == EOF)
 105:                 exit(1);
 106:         }
 107:         line[i] = 0;
 108:         r = i/3;
 109:         if(r == 0) {
 110:             print("zero");
 111:             goto out;
 112:         }
 113:         conv(line+i-3*r, r);
 114: 
 115: out:
 116:         fraction = (c == '.');
 117:         nline();
 118:         printf("...\n");
 119:         if(c != '\n')
 120:             putchar(c);
 121:     }
 122: }
 123: 
 124: conv(p, c)
 125: char *p;
 126: {
 127: 
 128:     if(c > max) {
 129:         conv(p, c-max);
 130:         print(card[max]);
 131:         nline();
 132:         p += (c-max)*3;
 133:         c = max;
 134:     }
 135:     while(c > 1) {
 136:         c--;
 137:         conv(p, 1);
 138:         cprint(card[c]);
 139:         nline();
 140:         p += 3;
 141:     }
 142:     ones(p[0]);
 143:     cprint(card[0]);
 144:     tens(p);
 145:     ones(p[2]);
 146: }
 147: 
 148: ones(d)
 149: {
 150:     if(d=='0')
 151:         return;
 152:     print(unit[d-'0']);
 153: }
 154: 
 155: tens(p)
 156: char *p;
 157: {
 158: 
 159:     switch(p[1]) {
 160: 
 161:     case '0':
 162:         return;
 163: 
 164:     case '1':
 165:         print(teen[p[2]-'0']);
 166:         p[2] = '0';
 167:         return;
 168:     }
 169: 
 170:     print(decade[p[1]-'0']);
 171: }
 172: 
 173: 
 174: digit(c)
 175: {
 176: 
 177:     if(c < '0' || c > '9')
 178:         return(0);
 179:     return(1);
 180: }
 181: 
 182: nline()
 183: {
 184: 
 185:     if(flag)
 186:         printf(".\n");
 187:     flag = 0;
 188: }
 189: 
 190: cprint(s)
 191: {
 192: 
 193:     if(flag)
 194:         print(s);
 195: }
 196: 
 197: print(s)
 198: {
 199: 
 200:     if(flag)
 201:         printf(" ");
 202:     printf(s);
 203:     flag = 1;
 204: }

Defined functions

Defined variables