| 63 | } |
| 64 | |
| 65 | static char *number(char *str, long num, int base, int size, int precision, int type) |
| 66 | { |
| 67 | char c, sign, tmp[66]; |
| 68 | char *dig = digits; |
| 69 | int i; |
| 70 | |
| 71 | if (type & UPPERCASE) dig = upper_digits; |
| 72 | if (type & LEFT) type &= ~ZEROPAD; |
| 73 | if (base < 2 || base > 36) return 0; |
| 74 | |
| 75 | c = (type & ZEROPAD) ? '0' : ' '; |
| 76 | sign = 0; |
| 77 | if (type & SIGN) |
| 78 | { |
| 79 | if (num < 0) |
| 80 | { |
| 81 | sign = '-'; |
| 82 | num = -num; |
| 83 | size--; |
| 84 | } |
| 85 | else if (type & PLUS) |
| 86 | { |
| 87 | sign = '+'; |
| 88 | size--; |
| 89 | } |
| 90 | else if (type & SPACE) |
| 91 | { |
| 92 | sign = ' '; |
| 93 | size--; |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | if (type & HEX_PREP) |
| 98 | { |
| 99 | if (base == 16) |
| 100 | size -= 2; |
| 101 | else if (base == 8) |
| 102 | size--; |
| 103 | } |
| 104 | |
| 105 | i = 0; |
| 106 | |
| 107 | if (num == 0) |
| 108 | tmp[i++] = '0'; |
| 109 | else |
| 110 | { |
| 111 | while (num != 0) |
| 112 | { |
| 113 | tmp[i++] = dig[((unsigned long) num) % (unsigned) base]; |
| 114 | num = ((unsigned long) num) / (unsigned) base; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | if (i > precision) precision = i; |
| 119 | size -= precision; |
| 120 | if (!(type & (ZEROPAD | LEFT))) while (size-- > 0) *str++ = ' '; |
| 121 | if (sign) *str++ = sign; |
| 122 | |