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#include <Python.h>
#include <string.h>
char *
PyMem_Strndup(const char *str, size_t len)
{
if (str != NULL) {
char *copy = PyMem_New(char, len + 1);
if (copy != NULL) {
memcpy(copy, str, len);
copy[len] = '\0';
return copy;
}
}
return NULL;
}
char *
PyMem_Strdup(const char *str)
{
return PyMem_Strndup(str, strlen(str));
}
char *
reprn(char *str, size_t len) {
static char strings[10240];
static size_t current = 0;
size_t reqlen = 2;
unsigned char c;
char
*out,
*write,
*begin = str,
*end = str + len;
while (begin < end) {
c = *begin;
if (c == '\'') {
reqlen += 2;
} else if (c == '\r') {
reqlen += 2;
} else if (c == '\n') {
reqlen += 2;
} else if (c == '\t') {
reqlen += 2;
} else if (c < ' ') {
reqlen += 3;
} else {
reqlen++;
}
begin++;
}
if (reqlen > 10240) {
reqlen = 10240;
}
if (current + reqlen > 10240) {
current = 0;
}
begin = str;
end = str + len;
out = write = strings + current;
*write++ = '\'';
while (begin < end) {
c = *begin;
if (c == '\'') {
if (write + 5 >= strings + 10240) break;
sprintf(write, "\\'");
write += 2;
} else if (c == '\r') {
if (write + 5 >= strings + 10240) break;
sprintf(write, "\\r");
write += 2;
} else if (c == '\n') {
if (write + 5 >= strings + 10240) break;
sprintf(write, "\\n");
write += 2;
} else if (c == '\t') {
if (write + 5 >= strings + 10240) break;
sprintf(write, "\\t");
write += 2;
} else if (c < ' ' || c > 126) {
if (write + 6 >= strings + 10240) break;
sprintf(write, "\\x%02x", c);
write += 4;
} else {
if (write + 4 >= strings + 10240) break;
*write++ = c;
}
begin++;
}
*write++ = '\'';
*write++ = '\0';
current += (size_t)(write - out);
return out;
}
char *
repr(char *str) {
return reprn(str, strlen(str));
}
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