* Ensure that buffer has a decimal point in it. The decimal point * will not be in the current locale, it will always be '.' */
| 114 | * will not be in the current locale, it will always be '.' |
| 115 | */ |
| 116 | static void |
| 117 | ensure_decimal_point(char* buffer, size_t buf_size) |
| 118 | { |
| 119 | int insert_count = 0; |
| 120 | char* chars_to_insert; |
| 121 | |
| 122 | /* search for the first non-digit character */ |
| 123 | char *p = buffer; |
| 124 | if (*p == '-' || *p == '+') |
| 125 | /* |
| 126 | * Skip leading sign, if present. I think this could only |
| 127 | * ever be '-', but it can't hurt to check for both. |
| 128 | */ |
| 129 | ++p; |
| 130 | while (*p && isdigit(Py_CHARMASK(*p))) { |
| 131 | ++p; |
| 132 | } |
| 133 | if (*p == '.') { |
| 134 | if (isdigit(Py_CHARMASK(*(p+1)))) { |
| 135 | /* |
| 136 | * Nothing to do, we already have a decimal |
| 137 | * point and a digit after it. |
| 138 | */ |
| 139 | } |
| 140 | else { |
| 141 | /* |
| 142 | * We have a decimal point, but no following |
| 143 | * digit. Insert a zero after the decimal. |
| 144 | */ |
| 145 | ++p; |
| 146 | chars_to_insert = "0"; |
| 147 | insert_count = 1; |
| 148 | } |
| 149 | } |
| 150 | else { |
| 151 | chars_to_insert = ".0"; |
| 152 | insert_count = 2; |
| 153 | } |
| 154 | if (insert_count) { |
| 155 | size_t buf_len = strlen(buffer); |
| 156 | if (buf_len + insert_count + 1 >= buf_size) { |
| 157 | /* |
| 158 | * If there is not enough room in the buffer |
| 159 | * for the additional text, just skip it. It's |
| 160 | * not worth generating an error over. |
| 161 | */ |
| 162 | } |
| 163 | else { |
| 164 | memmove(p + insert_count, p, buffer + strlen(buffer) - p + 1); |
| 165 | memcpy(p, chars_to_insert, insert_count); |
| 166 | } |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | /* see FORMATBUFLEN in unicodeobject.c */ |
| 171 | #define FLOAT_FORMATBUFLEN 120 |
no test coverage detected