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