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