blob: 21ac10b532468bf16fc2241d48c16cca6e27d664 [file] [log] [blame]
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <float.h>
#include <limits.h>
#include <ctype.h>
#include "cjson.h"
static const char *parse_value(cJSON *item, const char *value);
static char *print_value(cJSON *item, int depth, int fmt);
static const char *parse_array(cJSON *item, const char *value);
static char *print_array(cJSON *item, int depth, int fmt);
static const char *parse_object(cJSON *item, const char *value);
static char *print_object(cJSON *item, int depth, int fmt);
static const char *ep;
static const unsigned char firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
const char *cJSON_GetErrorPtr(void)
{
return ep;
}
static int cJSON_strcasecmp(const char *s1, const char *s2)
{
if (!s1) return (s1 == s2) ? 0 : 1;
if (!s2) return 1;
for (; tolower(*s1) == tolower(*s2); ++s1, ++s2) if (*s1 == 0) return 0;
return tolower(*(const unsigned char *)s1) - tolower(*(const unsigned char *)s2);
}
static void *(*cJSON_malloc)(size_t sz) = malloc;
static void (*cJSON_free)(void *ptr) = free;
static const char *skip(const char *in)
{
while (in && *in && (unsigned char)*in <= 32) in++;
return in;
}
static char* cJSON_strdup(const char* str)
{
size_t len;
char* str_cpy;
len = strlen(str) + 1;
if (!(str_cpy = (char*)cJSON_malloc(len))) return 0;
memcpy(str_cpy, str, len);
return str_cpy;
}
void cJSON_InitHooks(cJSON_Hooks* hooks)
{
if (!hooks) { /*hooks reset*/
cJSON_malloc = malloc;
cJSON_free = free;
return;
}
cJSON_malloc = (hooks->malloc_fn) ? hooks->malloc_fn : malloc;
cJSON_free = (hooks->free_fn) ? hooks->free_fn : free;
}
static cJSON *cJSON_New_Item(void)
{
cJSON* inode = (cJSON*)cJSON_malloc(sizeof(cJSON));
if (inode) memset(inode, 0, sizeof(cJSON));
return inode;
}
void cJSON_Delete(cJSON *c)
{
cJSON *next_node;
while (c) {
next_node = c->next;
if (!(c->type & cJSON_IsReference) && c->child) cJSON_Delete(c->child);
if (!(c->type & cJSON_IsReference) && c->valuestring) cJSON_free(c->valuestring);
if (c->string) cJSON_free(c->string);
cJSON_free(c);
c = next_node;
}
}
static const char *parse_number(cJSON *item, const char *num)
{
int subscale = 0, signsubscale = 1;
double inum = 0, sign = 1, scale = 0;
if (*num == '-') sign = -1, num++;
if (*num == '0') num++;
if (*num >= '1' && *num <= '9') do inum = (inum * 10.0) + (*num++ -'0');
while (*num >= '0' && *num <= '9');
if (*num == '.' && num[1] >= '0' && num[1] <= '9') {
num++;
do inum = (inum * 10.0) + (*num++ -'0'), scale--;
while (*num >= '0' && *num <= '9');
}
if (*num == 'e' || *num == 'E') {
num++;
if (*num == '+') num++;
else if (*num == '-') signsubscale = -1, num++;
while (*num >= '0' && *num <= '9') subscale = (subscale * 10) + (*num++ - '0');
}
inum = sign * inum * pow(10.0, (scale + subscale * signsubscale));
item->valuedouble = inum;
item->valueint = (int)inum;
item->type = cJSON_Number;
return num;
}
static char *print_number(cJSON *item)
{
double d = item->valuedouble;
char *str;
if (fabs(((double)item->valueint) - d) <= DBL_EPSILON && d <= INT_MAX && d >= INT_MIN) {
str = (char*)cJSON_malloc(21); /* 2^64+1 can be represented in 21 chars. */
if (str) sprintf(str, "%d", item->valueint);
} else {
str = (char*)cJSON_malloc(64);
if (str) {
if (fabs(floor(d) - d) <= DBL_EPSILON && fabs(d) < 1.0e60)sprintf(str, "%.0f", d);
else if (fabs(d) < 1.0e-6 || fabs(d) > 1.0e9) sprintf(str, "%e", d);
else sprintf(str, "%f", d);
}
}
return str;
}
static unsigned parse_hex4(const char *str)
{
unsigned hex = 0;
if (*str >= '0' && *str <= '9')
hex += (*str) - '0';
else if (*str >= 'A' && *str <= 'F')
hex += 10 + (*str) - 'A';
else if (*str >= 'a' && *str <= 'f')
hex += 10 + (*str) - 'a';
else
return 0;
hex = hex << 4;
str++;
if (*str >= '0' && *str <= '9')
hex += (*str) - '0';
else if (*str >= 'A' && *str <= 'F')
hex += 10 + (*str) - 'A';
else if (*str >= 'a' && *str <= 'f')
hex += 10 + (*str) - 'a';
else
return 0;
hex = hex << 4;
str++;
if (*str >= '0' && *str <= '9')
hex += (*str) - '0';
else if (*str >= 'A' && *str <= 'F')
hex += 10 + (*str) - 'A';
else if (*str >= 'a' && *str <= 'f')
hex += 10 + (*str) - 'a';
else
return 0;
hex = hex << 4;
str++;
if (*str >= '0' && *str <= '9')
hex += (*str) - '0';
else if (*str >= 'A' && *str <= 'F')
hex += 10 + (*str) - 'A';
else if (*str >= 'a' && *str <= 'f')
hex += 10 + (*str) - 'a';
else
return 0;
return hex;
}
static const char *parse_string(cJSON *item, const char *str)
{
const char *pstr = str + 1;
char *pstr2;
char *out;
int len = 0;
unsigned uc, uc2;
if (*str != '\"') {
ep = str; /* not a string! */
return 0;
}
while (*pstr != '\"' && *pstr && ++len) if (*pstr++ == '\\') pstr++; /* Skip escaped quotes. */
out = (char*)cJSON_malloc(len + 1); /* This is how long we need for the string, roughly. */
if (!out) return 0;
pstr = str + 1;
pstr2 = out;
while (*pstr != '\"' && *pstr) {
if (*pstr != '\\') *pstr2++ = *pstr++;
else {
pstr++;
switch (*pstr) {
case 'b':
*pstr2++ = '\b';
break;
case 'f':
*pstr2++ = '\f';
break;
case 'n':
*pstr2++ = '\n';
break;
case 'r':
*pstr2++ = '\r';
break;
case 't':
*pstr2++ = '\t';
break;
case 'u':
uc = parse_hex4(pstr + 1);
pstr += 4;
if ((uc >= 0xDC00 && uc <= 0xDFFF) || uc == 0)
break;
if (uc >= 0xD800 && uc <= 0xDBFF) {
if (pstr[1] != '\\' || pstr[2] != 'u')
break;
uc2 = parse_hex4(pstr + 3);
pstr += 6;
if (uc2 < 0xDC00 || uc2 > 0xDFFF)
break;
uc = 0x10000 + (((uc & 0x3FF) << 10) | (uc2 & 0x3FF));
}
len = 4;
if (uc < 0x80) len = 1;
else if (uc < 0x800) len = 2;
else if (uc < 0x10000) len = 3;
pstr2 += len;
switch (len) {
case 4:
*--pstr2 = ((uc | 0x80) & 0xBF);
uc >>= 6;
case 3:
*--pstr2 = ((uc | 0x80) & 0xBF);
uc >>= 6;
case 2:
*--pstr2 = ((uc | 0x80) & 0xBF);
uc >>= 6;
case 1:
*--pstr2 = (uc | firstByteMark[len]);
}
pstr2 += len;
break;
default:
*pstr2++ = *pstr;
break;
}
pstr++;
}
}
*pstr2 = 0;
if (*pstr == '\"') pstr++;
item->valuestring = out;
item->type = cJSON_String;
return pstr;
}
static char *print_string_ptr(const char *str)
{
const char *pstr;
char *pstr2, *out;
int len = 0;
unsigned char token;
if (!str) return cJSON_strdup("");
pstr = str;
while ((token = *pstr) && ++len) {
if (strchr("\"\\\b\f\n\r\t", token)) len++;
else if (token < 32) len += 5;
pstr++;
}
out = (char*)cJSON_malloc(len + 3);
if (!out) return 0;
pstr2 = out;
pstr = str;
*pstr2++ = '\"';
while (*pstr) {
if ((unsigned char)*pstr > 31 && *pstr != '\"' && *pstr != '\\') *pstr2++ = *pstr++;
else {
*pstr2++ = '\\';
switch (token = *pstr++) {
case '\\':
*pstr2++ = '\\';
break;
case '\"':
*pstr2++ = '\"';
break;
case '\b':
*pstr2++ = 'b';
break;
case '\f':
*pstr2++ = 'f';
break;
case '\n':
*pstr2++ = 'n';
break;
case '\r':
*pstr2++ = 'r';
break;
case '\t':
*pstr2++ = 't';
break;
default:
sprintf(pstr2, "u%04x", token);
pstr2 += 5;
break;
}
}
}
*pstr2++ = '\"';
*pstr2++ = 0;
return out;
}
static char *print_string(cJSON *item)
{
return print_string_ptr(item->valuestring);
}
cJSON *cJSON_ParseWithOpts(const char *value, const char **return_parse_end, int require_null_terminated)
{
const char *str_end = 0;
cJSON *c = cJSON_New_Item();
ep = 0;
if (!c)
return 0;
str_end = parse_value(c, skip(value));
if (!str_end) {
cJSON_Delete(c);
return 0;
}
if (require_null_terminated) {
str_end = skip(str_end);
if (*str_end) {
cJSON_Delete(c);
ep = str_end;
return 0;
}
}
if (return_parse_end) *return_parse_end = str_end;
return c;
}
cJSON *cJSON_Parse(const char *value)
{
return cJSON_ParseWithOpts(value, 0, 0);
}
char *cJSON_Print(cJSON *item)
{
return print_value(item, 0, 1);
}
char *cJSON_PrintUnformatted(cJSON *item)
{
return print_value(item, 0, 0);
}
static const char *parse_value(cJSON *item, const char *value)
{
if (!value)
return 0;
if (!strncmp(value, "null", 4)) {
item->type = cJSON_NULL;
return value + 4;
}
if (!strncmp(value, "false", 5)) {
item->type = cJSON_False;
return value + 5;
}
if (!strncmp(value, "true", 4)) {
item->type = cJSON_True;
item->valueint = 1;
return value + 4;
}
if (*value == '\"') {
return parse_string(item, value);
}
if (*value == '-' || (*value >= '0' && *value <= '9')) {
return parse_number(item, value);
}
if (*value == '[') {
return parse_array(item, value);
}
if (*value == '{') {
return parse_object(item, value);
}
ep = value;
return 0;
}
static char *print_value(cJSON *item, int depth, int fmt)
{
char *item_value = 0;
if (!item)
return 0;
switch ((item->type) & 255) {
case cJSON_NULL:
item_value = cJSON_strdup("null");
break;
case cJSON_False:
item_value = cJSON_strdup("false");
break;
case cJSON_True:
item_value = cJSON_strdup("true");
break;
case cJSON_Number:
item_value = print_number(item);
break;
case cJSON_String:
item_value = print_string(item);
break;
case cJSON_Array:
item_value = print_array(item, depth, fmt);
break;
case cJSON_Object:
item_value = print_object(item, depth, fmt);
break;
}
return item_value;
}
static const char *parse_array(cJSON *item, const char *value)
{
cJSON *child;
if (*value != '[') {
ep = value;
return 0;
}
item->type = cJSON_Array;
value = skip(value + 1);
if (*value == ']') return value + 1;
item->child = child = cJSON_New_Item();
if (!item->child) return 0;
value = skip(parse_value(child, skip(value)));
if (!value) return 0;
while (*value == ',') {
cJSON *new_item;
if (!(new_item = cJSON_New_Item()))
return 0;
child->next = new_item;
new_item->prev = child;
child = new_item;
value = skip(parse_value(child, skip(value + 1)));
if (!value)
return 0;
}
if (*value == ']')
return value + 1;
ep = value;
return 0;
}
static char *print_array(cJSON *item, int depth, int fmt)
{
char *oitem = 0, *pstr, *ret;
char **entries;
int len = 5;
int numentries = 0, i = 0, fail = 0;
cJSON *child = item->child;
while (child) numentries++, child = child->next;
if (!numentries) {
oitem = (char*)cJSON_malloc(3);
if (oitem)
strcpy(oitem, "[]");
return oitem;
}
entries = (char**)cJSON_malloc(numentries * sizeof(char*));
if (!entries) return 0;
memset(entries, 0, numentries * sizeof(char*));
child = item->child;
while (child && !fail) {
ret = print_value(child, depth + 1, fmt);
entries[i++] = ret;
if (ret) len += strlen(ret) + 2 + (fmt ? 1 : 0);
else fail = 1;
child = child->next;
}
if (!fail)
oitem = (char*)cJSON_malloc(len);
if (!oitem)
fail = 1;
if (fail) {
for (i = 0; i < numentries; i++) if (entries[i]) cJSON_free(entries[i]);
cJSON_free(entries);
return 0;
}
*oitem = '[';
pstr = oitem + 1;
*pstr = 0;
for (i = 0; i < numentries; i++) {
strcpy(pstr, entries[i]);
pstr += strlen(entries[i]);
if (i != numentries - 1) {
*pstr++ = ',';
if (fmt)*pstr++ = ' ';
*pstr = 0;
}
cJSON_free(entries[i]);
}
cJSON_free(entries);
*pstr++ = ']';
*pstr++ = 0;
return oitem;
}
static const char *parse_object(cJSON *item, const char *value)
{
cJSON *child;
if (*value != '{') {
ep = value;
return 0;
}
item->type = cJSON_Object;
value = skip(value + 1);
if (*value == '}') return value + 1;
item->child = child = cJSON_New_Item();
if (!item->child) return 0;
value = skip(parse_string(child, skip(value)));
if (!value) return 0;
child->string = child->valuestring;
child->valuestring = 0;
if (*value != ':') {
ep = value;
return 0;
}
value = skip(parse_value(child, skip(value + 1)));
if (!value) return 0;
while (*value == ',') {
cJSON *new_item;
if (!(new_item = cJSON_New_Item())) return 0;
child->next = new_item;
new_item->prev = child;
child = new_item;
value = skip(parse_string(child, skip(value + 1)));
if (!value) return 0;
child->string = child->valuestring;
child->valuestring = 0;
if (*value != ':') {
ep = value;
return 0;
}
value = skip(parse_value(child, skip(value + 1)));
if (!value) return 0;
}
if (*value == '}') return value + 1;
ep = value;
return 0;
}
static char *print_object(cJSON *item, int depth, int fmt)
{
char *oitem = 0, *pstr, *ret, *str;
char **entries = 0, **names = 0;
int len = 7, i = 0, j;
int numentries = 0, fail = 0;
cJSON *child = item->child;
while (child) numentries++, child = child->next;
if (!numentries) {
oitem = (char*)cJSON_malloc(fmt ? depth + 4 : 3);
if (!oitem) return 0;
pstr = oitem;
*pstr++ = '{';
if (fmt) {
*pstr++ = '\n';
for (i = 0; i < depth - 1; i++) *pstr++ = '\t';
}
*pstr++ = '}';
*pstr++ = 0;
return oitem;
}
entries = (char**)cJSON_malloc(numentries * sizeof(char*));
if (!entries)
return 0;
names = (char**)cJSON_malloc(numentries * sizeof(char*));
if (!names) {
cJSON_free(entries);
return 0;
}
memset(entries, 0, sizeof(char*)*numentries);
memset(names, 0, sizeof(char*)*numentries);
child = item->child;
depth++;
if (fmt) len += depth;
while (child) {
names[i] = str = print_string_ptr(child->string);
entries[i++] = ret = print_value(child, depth, fmt);
if (str && ret)
len += strlen(ret) + strlen(str) + 2 + (fmt ? 2 + depth : 0);
else
fail = 1;
child = child->next;
}
if (!fail) oitem = (char*)cJSON_malloc(len);
if (!oitem) fail = 1;
if (fail) {
for (i = 0; i < numentries; i++) {
if (names[i]) cJSON_free(names[i]);
if (entries[i]) cJSON_free(entries[i]);
}
cJSON_free(names);
cJSON_free(entries);
return 0;
}
*oitem = '{';
pstr = oitem + 1;
if (fmt)*pstr++ = '\n';
*pstr = 0;
for (i = 0; i < numentries; i++) {
if (fmt) for (j = 0; j < depth; j++) *pstr++ = '\t';
strcpy(pstr, names[i]);
pstr += strlen(names[i]);
*pstr++ = ':';
if (fmt) *pstr++ = '\t';
strcpy(pstr, entries[i]);
pstr += strlen(entries[i]);
if (i != numentries - 1) *pstr++ = ',';
if (fmt) *pstr++ = '\n';
*pstr = 0;
cJSON_free(names[i]);
cJSON_free(entries[i]);
}
cJSON_free(names);
cJSON_free(entries);
if (fmt) for (i = 0; i < depth - 1; i++) *pstr++ = '\t';
*pstr++ = '}';
*pstr++ = 0;
return oitem;
}
int cJSON_GetArraySize(cJSON *array)
{
int i = 0;
cJSON *citem = array->child;
while (citem)i++, citem = citem->next;
return i;
}
cJSON *cJSON_GetArrayItem(cJSON *array, int item)
{
cJSON *citem = array->child;
while (citem && item > 0) item--, citem = citem->next;
return citem;
}
cJSON *cJSON_GetObjectItem(cJSON *object, const char *string)
{
cJSON *citem = object->child;
while (citem && cJSON_strcasecmp(citem->string, string)) citem = citem->next;
return citem;
}
static void suffix_object(cJSON *prev, cJSON *item)
{
prev->next = item;
item->prev = prev;
}
static cJSON *create_reference(cJSON *item)
{
cJSON *refer = cJSON_New_Item();
if (!refer)
return 0;
memcpy(refer, item, sizeof(cJSON));
refer->string = 0;
refer->type |= cJSON_IsReference;
refer->next = refer->prev = 0;
return refer;
}
void cJSON_AddItemToArray(cJSON *array, cJSON *item)
{
cJSON *citem = array->child;
if (!item)
return;
if (!citem) {
array->child = item;
} else {
while (citem && citem->next) citem = citem->next;
suffix_object(citem, item);
}
}
void cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
{
if (!item)
return;
if (item->string) cJSON_free(item->string);
item->string = cJSON_strdup(string);
cJSON_AddItemToArray(object, item);
}
void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item)
{
cJSON_AddItemToArray(array, create_reference(item));
}
void cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item)
{
cJSON_AddItemToObject(object, string, create_reference(item));
}
cJSON *cJSON_DetachItemFromArray(cJSON *array, int which)
{
cJSON *citem = array->child;
while (citem && which > 0) citem = citem->next, which--;
if (!citem)
return 0;
if (citem->prev) citem->prev->next = citem->next;
if (citem->next) citem->next->prev = citem->prev;
if (citem == array->child) array->child = citem->next;
citem->prev = citem->next = 0;
return citem;
}
void cJSON_DeleteItemFromArray(cJSON *array, int which)
{
cJSON_Delete(cJSON_DetachItemFromArray(array, which));
}
cJSON *cJSON_DetachItemFromObject(cJSON *object, const char *string)
{
int i = 0;
cJSON *citem = object->child;
while (citem && cJSON_strcasecmp(citem->string, string)) i++, citem = citem->next;
if (citem)
return cJSON_DetachItemFromArray(object, i);
return 0;
}
void cJSON_DeleteItemFromObject(cJSON *object, const char *string)
{
cJSON_Delete(cJSON_DetachItemFromObject(object, string));
}
void cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem)
{
cJSON *citem = array->child;
while (citem && which > 0) citem = citem->next, which--;
if (!citem)
return;
newitem->next = citem->next;
newitem->prev = citem->prev;
if (newitem->next) newitem->next->prev = newitem;
if (citem == array->child) array->child = newitem;
else newitem->prev->next = newitem;
citem->next = citem->prev = 0;
cJSON_Delete(citem);
}
void cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem)
{
int i = 0;
cJSON *citem = object->child;
while (citem && cJSON_strcasecmp(citem->string, string))i++, citem = citem->next;
if (citem) {
newitem->string = cJSON_strdup(string);
cJSON_ReplaceItemInArray(object, i, newitem);
}
}
cJSON *cJSON_CreateNull(void)
{
cJSON *item = cJSON_New_Item();
if (item)item->type = cJSON_NULL;
return item;
}
cJSON *cJSON_CreateTrue(void)
{
cJSON *item = cJSON_New_Item();
if (item)item->type = cJSON_True;
return item;
}
cJSON *cJSON_CreateFalse(void)
{
cJSON *item = cJSON_New_Item();
if (item)item->type = cJSON_False;
return item;
}
cJSON *cJSON_CreateBool(int b)
{
cJSON *item = cJSON_New_Item();
if (item)item->type = b ? cJSON_True : cJSON_False;
return item;
}
cJSON *cJSON_CreateNumber(double num)
{
cJSON *item = cJSON_New_Item();
if (item) {
item->type = cJSON_Number;
item->valuedouble = num;
item->valueint = (int)num;
}
return item;
}
cJSON *cJSON_CreateString(const char *string)
{
cJSON *item = cJSON_New_Item();
if (item) {
item->type = cJSON_String;
item->valuestring = cJSON_strdup(string);
}
return item;
}
cJSON *cJSON_CreateArray(void)
{
cJSON *item = cJSON_New_Item();
if (item)item->type = cJSON_Array;
return item;
}
cJSON *cJSON_CreateObject(void)
{
cJSON *item = cJSON_New_Item();
if (item)item->type = cJSON_Object;
return item;
}
cJSON *cJSON_CreateIntArray(const int *numbers, int count)
{
int i;
cJSON *n = 0, *p = 0, *a = cJSON_CreateArray();
for (i = 0; a && i < count; i++) {
n = cJSON_CreateNumber(numbers[i]);
if (!i)a->child = n;
else suffix_object(p, n);
p = n;
}
return a;
}
cJSON *cJSON_CreateFloatArray(const float *numbers, int count)
{
int i;
cJSON *n = 0, *p = 0, *a = cJSON_CreateArray();
for (i = 0; a && i < count; i++) {
n = cJSON_CreateNumber(numbers[i]);
if (!i)a->child = n;
else suffix_object(p, n);
p = n;
}
return a;
}
cJSON *cJSON_CreateDoubleArray(const double *numbers, int count)
{
int i;
cJSON *n = 0, *p = 0, *a = cJSON_CreateArray();
for (i = 0; a && i < count; i++) {
n = cJSON_CreateNumber(numbers[i]);
if (!i)a->child = n;
else suffix_object(p, n);
p = n;
}
return a;
}
cJSON *cJSON_CreateStringArray(const char **strings, int count)
{
int i;
cJSON *n = 0, *p = 0, *a = cJSON_CreateArray();
for (i = 0; a && i < count; i++) {
n = cJSON_CreateString(strings[i]);
if (!i)a->child = n;
else suffix_object(p, n);
p = n;
}
return a;
}
cJSON *cJSON_Duplicate(cJSON *item, int recurse)
{
cJSON *newitem, *cptr, *nptr = 0, *newchild;
if (!item)
return 0;
newitem = cJSON_New_Item();
if (!newitem)
return 0;
newitem->type = item->type & (~cJSON_IsReference), newitem->valueint = item->valueint, newitem->valuedouble = item->valuedouble;
if (item->valuestring) {
newitem->valuestring = cJSON_strdup(item->valuestring);
if (!newitem->valuestring) {
cJSON_Delete(newitem);
return 0;
}
}
if (item->string) {
newitem->string = cJSON_strdup(item->string);
if (!newitem->string) {
cJSON_Delete(newitem);
return 0;
}
}
if (!recurse)
return newitem;
cptr = item->child;
while (cptr) {
newchild = cJSON_Duplicate(cptr, 1);
if (!newchild) {
cJSON_Delete(newitem);
return 0;
}
if (nptr) {
nptr->next = newchild, newchild->prev = nptr;
nptr = newchild;
} else {
newitem->child = newchild;
nptr = newchild;
}
cptr = cptr->next;
}
return newitem;
}
void cJSON_Minify(char *json)
{
char *cpr_str = json;
while (*json) {
if (*json == ' ') json++;
else if (*json == '\t') json++;
else if (*json == '\r') json++;
else if (*json == '\n') json++;
else if (*json == '/' && json[1] == '/') while (*json && *json != '\n') json++;
else if (*json == '/' && json[1] == '*') {
while (*json && !(*json == '*' && json[1] == '/')) json++;
json += 2;
} else if (*json == '\"') {
*cpr_str++ = *json++;
while (*json && *json != '\"') {
if (*json == '\\') *cpr_str++ = *json++;
*cpr_str++ = *json++;
}
*cpr_str++ = *json++;
} else *cpr_str++ = *json++;
}
*cpr_str = 0;
}