#include "Type.h"
#include "cJSON.h"
#include <math.h>
#include <limits.h>
#include <float.h>
static const char* ep;
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);
void (*cJSON_free)(void* ptr);
// 复制值。
static char* cJSON_strdup(const char* str)
{
// 计算原str 长度。
size_t len = strlen(str) + 1;
// 创建缓冲区
char* rs = (char*)cJSON_malloc(len);
if (rs == NULL)return NULL;
// 复制
memcpy(rs, str, len);
return rs;
}
// 设置 malloc free
void cJSON_InitHooks(cJSON_Hooks* hooks)
{
if (!hooks)
{
cJSON_malloc = GlobleMalloc;
cJSON_free = GlobleFree;
return;
}
cJSON_malloc = (hooks->malloc_fn) ? hooks->malloc_fn : GlobleMalloc;
cJSON_free = (hooks->free_fn) ? hooks->free_fn : GlobleFree;
}
// 创建一个名值对
static cJSON* cJSON_New_Item(void)
{
cJSON* node = (cJSON*)cJSON_malloc(sizeof(cJSON));
if (node != NULL) memset(node, 0, sizeof(cJSON));
return node;
}
// 删除名值对
void cJSON_Delete(cJSON* c)
{
cJSON* next;
while (c)
{
next = c->next;
// 递归释放节点
if (!(c->type & cJSON_IsReference) && c->child) cJSON_Delete(c->child);
// 释放本节点 名值 对
if (!(c->type & cJSON_IsReference) && c->valuestring) cJSON_free(c->valuestring);
if (c->string) cJSON_free(c->string);
// 释放节点结构体
cJSON_free(c);
c = next;
}
}
// 解析数字值。
static const char* parse_number(cJSON* item, const char* num)
{
char* numbak = (char*)num;
// sign 正负数符号
// scale 小数点位置
// subscale 科学计数法 a x 10^n 的 n 值。
// signsubscale 科学计数法 a x 10^n 的 n 符号。
double n = 0, sign = 1, scale = 0; int subscale = 0, signsubscale = 1;
// 负值
if (*num == '-') sign = -1, num++; /* Has sign? */
// 0处理
if (*num == '0') num++; /* is zero */
// 整数
if (*num >= '1' && *num <= '9')
{
do
{
n = (n * 10.0) + (*num++ - '0');
} while (*num >= '0' && *num <= '9'); /* Number? */
}
// 处理小数。
if (*num == '.' && num[1] >= '0' && num[1] <= '9')
{
num++;
do
{
n = (n * 10.0) + (*num++ - '0'), scale--;
} while (*num >= '0' && *num <= '9');
}
// 科学计数法的标志
if (*num == 'e' || *num == 'E') /* Exponent? */
{
num++; if (*num == '+') num++; else if (*num == '-') signsubscale = -1, num++;
while (*num >= '0' && *num <= '9') subscale = (subscale * 10) + (*num++ - '0');
}
// number = +/- number.fraction * 10^+/- exponent
n = sign * n * pow(10.0, (scale + subscale * signsubscale));
int numlen = num - numbak;
char* numstr = (char*)cJSON_malloc(numlen + 1);
if (numstr != NULL)
{
item->valuestring = numstr;
memcpy(numstr, numbak, numlen);
numstr[numlen] = 0x00;
}
item->valuedouble = n;
item->valueint = (int)n;
item->type = cJSON_Number;
return num;
}
// 打印数字
static char* print_number(cJSON* item)
{
char* str;
double d = item->valuedouble;
if (fabs(((double)item->valueint) - d) <= DBL_EPSILON && d <= INT_MAX && d >= INT_MIN)
{
// 2^64+1 can be represented in 21 chars.
str = (char*)cJSON_malloc(21);
if (str) sprintf(str, "%d", item->valueint);
}
else
{
/* This is a nice tradeoff. */
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;
}
// BCD 编码？
// 16进制 4 字节字符串，变成 ushort 二进制。
// "89AB" => 0x89ab => byte[]{ 0xab, 0xab }
static unsigned parse_hex4(const char* str)
{
unsigned h = 0;
if (*str >= '0' && *str <= '9') h += (*str) - '0';
else if (*str >= 'A' && *str <= 'F') h += 10 + (*str) - 'A';
else if (*str >= 'a' && *str <= 'f') h += 10 + (*str) - 'a';
else return 0;
h = h << 4; str++;
if (*str >= '0' && *str <= '9') h += (*str) - '0';
else if (*str >= 'A' && *str <= 'F') h += 10 + (*str) - 'A';
else if (*str >= 'a' && *str <= 'f') h += 10 + (*str) - 'a';
else return 0;
h = h << 4; str++;
if (*str >= '0' && *str <= '9') h += (*str) - '0';
else if (*str >= 'A' && *str <= 'F') h += 10 + (*str) - 'A';
else if (*str >= 'a' && *str <= 'f') h += 10 + (*str) - 'a';
else return 0;
h = h << 4; str++;
if (*str >= '0' && *str <= '9') h += (*str) - '0';
else if (*str >= 'A' && *str <= 'F') h += 10 + (*str) - 'A';
else if (*str >= 'a' && *str <= 'f') h += 10 + (*str) - 'a';
else return 0;
return h;
}
/* Parse the input text into an unescaped cstring, and populate item. */
static const unsigned char firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
// 解析字符串
static const char* parse_string(cJSON* item, const char* str)
{
const char* ptr = str + 1;
char* ptr2;
char* out;
int len = 0;
unsigned uc, uc2;
// 判误
if (*str != '\"') { ep = str; return 0; }
// 跳过转义符号
while (*ptr != '\"' && *ptr && ++len) if (*ptr++ == '\\') ptr++;
// 创建输出字符串。
out = (char*)cJSON_malloc(len + 1);
if (!out) return 0;
ptr = str + 1; ptr2 = out;
while (*ptr != '\"' && *ptr)
{
if (*ptr != '\\') *ptr2++ = *ptr++;
else
{
ptr++;
switch (*ptr)
{
case 'b': *ptr2++ = '\b'; break;
case 'f': *ptr2++ = '\f'; break;
case 'n': *ptr2++ = '\n'; break;
case 'r': *ptr2++ = '\r'; break;
case 't': *ptr2++ = '\t'; break;
case 'u':
{
/* transcode utf16 to utf8. */
/* get the unicode char. */
uc = parse_hex4(ptr + 1); ptr += 4;
// 判断是否合法
if ((uc >= 0xDC00 && uc <= 0xDFFF) || uc == 0) break; /* check for invalid. */
// UTF16 范围
if (uc >= 0xD800 && uc <= 0xDBFF) /* UTF16 surrogate pairs. */
{
if (ptr[1] != '\\' || ptr[2] != 'u') break; /* missing second-half of surrogate. */
uc2 = parse_hex4(ptr + 3); ptr += 6;
if (uc2 < 0xDC00 || uc2>0xDFFF) break; /* invalid second-half of surrogate. */
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; ptr2 += len;
switch (len) {
case 4: *--ptr2 = ((uc | 0x80) & 0xBF); uc >>= 6;
case 3: *--ptr2 = ((uc | 0x80) & 0xBF); uc >>= 6;
case 2: *--ptr2 = ((uc | 0x80) & 0xBF); uc >>= 6;
case 1: *--ptr2 = (uc | firstByteMark[len]);
}
ptr2 += len;
}
break;
default: *ptr2++ = *ptr; break;
}
ptr++;
}
}
*ptr2 = 0;
if (*ptr == '\"') ptr++;
item->valuestring = out;
item->type = cJSON_String;
return ptr;
}
/* Render the cstring provided to an escaped version that can be printed. */
static char* print_string_ptr(const char* str)
{
const char* ptr;
char* ptr2, * out;
int len = 0;
unsigned char token;
if (!str) return cJSON_strdup("");
ptr = str;
while (true)
{
token = *ptr;
++len;
if (token == '\0')break;
if (strchr("\"\\\b\f\n\r\t", token))
len++;
else if (token < 32)
len += 5;
ptr++;
}
out = (char*)cJSON_malloc(len + 3);
if (!out) return 0;
ptr2 = out; ptr = str;
*ptr2++ = '\"';
while (*ptr)
{
if ((unsigned char)*ptr > 31 && *ptr != '\"' && *ptr != '\\')
{
*ptr2++ = *ptr++;
}
else
{
*ptr2++ = '\\';
switch (token = *ptr++)
{
case '\\': *ptr2++ = '\\'; break;
case '\"': *ptr2++ = '\"'; break;
case '\b': *ptr2++ = 'b'; break;
case '\f': *ptr2++ = 'f'; break;
case '\n': *ptr2++ = 'n'; break;
case '\r': *ptr2++ = 'r'; break;
case '\t': *ptr2++ = 't'; break;
default:
sprintf(ptr2, "u%04x", token);
ptr2 += 5;
break;
}
}
}
*ptr2++ = '\"'; *ptr2++ = 0;
return out;
}
/* Invote print_string_ptr (which is useful) on an item. */
static char* print_string(cJSON* item) { return print_string_ptr(item->valuestring); }
/* Predeclare these prototypes. */
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);
/* Utility to jump whitespace and cr/lf */
static const char* skip(const char* in)
{
while (in && *in && (unsigned char)*in <= 32)
{
in++;
}
return in;
}
/* Parse an object - create a new root, and populate. */
cJSON* cJSON_ParseWithOpts(const char* value, const char** return_parse_end, int require_null_terminated)
{
const char* end = 0;
cJSON* c = cJSON_New_Item();
ep = 0;
if (!c) return 0; /* memory fail */
end = parse_value(c, skip(value));
if (!end) { cJSON_Delete(c); return 0; } /* parse failure. ep is set. */
/* if we require null-terminated JSON without appended garbage, skip and then check for a null terminator */
if (require_null_terminated)
{
end = skip(end);
if (*end)
{
cJSON_Delete(c);
ep = end; return 0;
}
}
if (return_parse_end) *return_parse_end = end;
return c;
}
/* Default options for cJSON_Parse */
cJSON* cJSON_Parse(const char* value) { return cJSON_ParseWithOpts(value, 0, 0); }
/* Render a cJSON item/entity/structure to text. */
char* cJSON_Print(cJSON* item) { return print_value(item, 0, 1); }
char* cJSON_PrintUnformatted(cJSON* item) { return print_value(item, 0, 0); }
/* Parser core - when encountering text, process appropriately. */
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, "Null", 4)) { item->type = cJSON_NULL; return value + 4; }
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, "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 (!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); }
// 错误定位
ep = value;
return NULL;
}
/* Render a value to text. */
static char* print_value(cJSON* item, int depth, int fmt)
{
char* out = 0;
if (!item) return NULL;
switch ((item->type) & 255)
{
case cJSON_NULL: out = cJSON_strdup("null"); break;
case cJSON_False: out = cJSON_strdup("false"); break;
case cJSON_True: out = cJSON_strdup("true"); break;
case cJSON_Number: out = print_number(item); break;
case cJSON_String: out = print_string(item); break;
case cJSON_BareString: out = cJSON_strdup(item->valuestring); break;
case cJSON_Array: out = print_array(item, depth, fmt); break;
case cJSON_Object: out = print_object(item, depth, fmt); break;
}
return out;
}
/* Build an array from input text. */
static const char* parse_array(cJSON* item, const char* value)
{
cJSON* child;
/* not an array! */
if (*value != '[') { ep = value; return 0; }
item->type = cJSON_Array;
value = skip(value + 1);
/* empty array. */
if (*value == ']') return value + 1;
item->child = child = cJSON_New_Item();
if (!item->child) return NULL;
/* skip any spacing, get the value. */
value = skip(parse_value(child, skip(value)));
if (!value) return NULL;
while (*value == ',')
{
cJSON* new_item;
/* memory fail */
new_item = cJSON_New_Item();
if (new_item == NULL) return NULL;
child->next = new_item; new_item->prev = child; child = new_item;
value = skip(parse_value(child, skip(value + 1)));
/* memory fail */
if (!value) return NULL;
}
/* end of array */
if (*value == ']') return value + 1;
ep = value;
return NULL;
}
/* Render an array to text */
static char* print_array(cJSON* item, int depth, int fmt)
{
char** entries;
char* out = 0, * ptr, * ret; int len = 5;
cJSON* child = item->child;
int numentries = 0, i = 0, fail = 0;
/* How many entries in the array? */
while (child) numentries++, child = child->next;
/* Explicitly handle numentries==0 */
if (!numentries)
{
out = (char*)cJSON_malloc(3);
if (out) strcpy(out, "[]");
return out;
}
/* Allocate an array to hold the values for each */
entries = (char**)cJSON_malloc(numentries * sizeof(char*));
if (!entries) return NULL;
memset(entries, 0, numentries * sizeof(char*));
/* Retrieve all the results: */
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 we didn't fail, try to malloc the output string */
if (!fail) out = (char*)cJSON_malloc(len);
/* If that fails, we fail. */
if (!out) fail = 1;
/* Handle failure. */
if (fail)
{
for (i = 0; i < numentries; i++) if (entries[i]) cJSON_free(entries[i]);
cJSON_free(entries);
return NULL;
}
/* Compose the output array. */
*out = '[';
ptr = out + 1; *ptr = 0;
for (i = 0; i < numentries; i++)
{
strcpy(ptr, entries[i]); ptr += strlen(entries[i]);
if (i != numentries - 1)
{
*ptr++ = ',';
if (fmt)*ptr++ = ' ';
*ptr = 0;
}
cJSON_free(entries[i]);
}
cJSON_free(entries);
*ptr++ = ']';
*ptr++ = 0;
return out;
}
/* Build an object from the text. */
static const char* parse_object(cJSON* item, const char* value)
{
cJSON* child;
/* not an object! */
if (*value != '{')
{
ep = value;
return NULL;
}
item->type = cJSON_Object;
value = skip(value + 1);
/* empty array. */
if (*value == '}') return value + 1;
item->child = child = cJSON_New_Item();
if (!item->child) return NULL;
value = skip(parse_string(child, skip(value)));
if (!value) return NULL;
child->string = child->valuestring; child->valuestring = 0;
if (*value != ':')
{
ep = value;
return NULL;
}
/* skip any spacing, get the value. */
value = skip(parse_value(child, skip(value + 1)));
if (!value) return NULL;
while (*value == ',')
{
cJSON* new_item = cJSON_New_Item();
/* memory fail */
if (new_item == NULL) return NULL;
child->next = new_item; new_item->prev = child; child = new_item;
value = skip(parse_string(child, skip(value + 1)));
if (!value) return NULL;
child->string = child->valuestring; child->valuestring = 0;
if (*value != ':')
{
ep = value;
return NULL;
}
/* skip any spacing, get the value. */
value = skip(parse_value(child, skip(value + 1)));
if (!value) return NULL;
}
if (*value == '}') return value + 1; /* end of array */
ep = value;
return NULL;
}
/* Render an object to text. */
static char* print_object(cJSON* item, int depth, int fmt)
{
char** entries = 0, ** names = 0;
char* out = 0, * ptr, * ret, * str;
int len = 7, i = 0, j;
cJSON* child = item->child;
int numentries = 0, fail = 0;
/* Count the number of entries. */
while (child) numentries++, child = child->next;
/* Explicitly handle empty object case */
if (!numentries)
{
out = (char*)cJSON_malloc(fmt ? depth + 4 : 3);
if (!out) return NULL;
ptr = out; *ptr++ = '{';
if (fmt)
{
*ptr++ = '\n';
for (i = 0; i < depth - 1; i++) *ptr++ = '\t';
}
*ptr++ = '}';
*ptr++ = 0;
return out;
}
/* Allocate space for the names and the objects */
entries = (char**)cJSON_malloc(numentries * sizeof(char*));
if (!entries) return NULL;
names = (char**)cJSON_malloc(numentries * sizeof(char*));
if (!names)
{
cJSON_free(entries);
return NULL;
}
memset(entries, 0, sizeof(char*) * numentries);
memset(names, 0, sizeof(char*) * numentries);
/* Collect all the results into our arrays: */
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;
}
/* Try to allocate the output string */
if (!fail) out = (char*)cJSON_malloc(len);
if (!out) fail = 1;
/* Handle failure */
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;
}
/* Compose the output: */
*out = '{'; ptr = out + 1; if (fmt)*ptr++ = '\n'; *ptr = 0;
for (i = 0; i < numentries; i++)
{
if (fmt)
{
for (j = 0; j < depth; j++) *ptr++ = '\t';
}
// key
strcpy(ptr, names[i]);
ptr += strlen(names[i]);
// :
*ptr++ = ':';
// value
if (fmt) *ptr++ = '\t';
strcpy(ptr, entries[i]);
ptr += strlen(entries[i]);
// 分割
if (i != numentries - 1) *ptr++ = ',';
if (fmt) *ptr++ = '\n'; *ptr = 0;
cJSON_free(names[i]); cJSON_free(entries[i]);
}
cJSON_free(names); cJSON_free(entries);
if (fmt)
{
for (i = 0; i < depth - 1; i++) *ptr++ = '\t';
}
*ptr++ = '}';
*ptr++ = 0;
return out;
}
/* Get Array size/item / object item. */
int cJSON_GetArraySize(cJSON* array) { cJSON* c = array->child; int i = 0; while (c)i++, c = c->next; return i; }
cJSON* cJSON_GetArrayItem(cJSON* array, int item) { cJSON* c = array->child; while (c && item > 0) item--, c = c->next; return c; }
cJSON* cJSON_GetObjectItem(cJSON* object, const char* string) { cJSON* c = object->child; while (c && cJSON_strcasecmp(c->string, string)) c = c->next; return c; }
/* Utility for array list handling. */
static void suffix_object(cJSON* prev, cJSON* item) { prev->next = item; item->prev = prev; }
/* Utility for handling references. */
static cJSON* create_reference(cJSON* item)
{
cJSON* ref = cJSON_New_Item();
if (!ref) return NULL;
memcpy(ref, item, sizeof(cJSON));
ref->string = 0;
ref->type |= cJSON_IsReference;
ref->next = ref->prev = 0;
return ref;
}
/* Add item to array/object. */
void cJSON_AddItemToArray(cJSON* array, cJSON* item)
{
cJSON* c = array->child;
if (!item) return;
if (!c)
{
array->child = item;
}
else
{
while (c && c->next) c = c->next;
suffix_object(c, 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* c = array->child;
while (c && which > 0) c = c->next, which--;
if (!c) return NULL;
if (c->prev) c->prev->next = c->next;
if (c->next) c->next->prev = c->prev;
if (c == array->child) array->child = c->next;
c->prev = c->next = 0;
return c;
}
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* c = object->child;
while (c && cJSON_strcasecmp(c->string, string)) i++, c = c->next;
if (c) return cJSON_DetachItemFromArray(object, i);
return NULL;
}
void cJSON_DeleteItemFromObject(cJSON* object, const char* string) { cJSON_Delete(cJSON_DetachItemFromObject(object, string)); }
/* Replace array/object items with new ones. */
void cJSON_ReplaceItemInArray(cJSON* array, int which, cJSON* newitem)
{
cJSON* c = array->child;
while (c && which > 0) c = c->next, which--;
if (!c) return;
newitem->next = c->next;
newitem->prev = c->prev;
if (newitem->next) newitem->next->prev = newitem;
if (c == array->child)
array->child = newitem;
else
newitem->prev->next = newitem;
c->next = c->prev = 0;
cJSON_Delete(c);
}
void cJSON_ReplaceItemInObject(cJSON* object, const char* string, cJSON* newitem)
{
int i = 0;
cJSON* c = object->child;
while (c && cJSON_strcasecmp(c->string, string))i++, c = c->next;
if (c)
{
newitem->string = cJSON_strdup(string);
cJSON_ReplaceItemInArray(object, i, newitem);
}
}
/* Create basic types: */
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_CreateBareString(const char* string) { cJSON* item = cJSON_New_Item(); if (item) { item->type = cJSON_BareString; 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; }
/* Create Arrays: */
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;
}
// 复制
cJSON* cJSON_Duplicate(cJSON* item, int recurse)
{
if (!item) return 0;
cJSON* newitem, * cptr, * nptr = 0, * newchild;
/* Create new item */
newitem = cJSON_New_Item();
if (!newitem) return 0;
/* Copy over all vars */
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 non-recursive, then we're done! */
if (!recurse) return newitem;
/* Walk the ->next chain for the child. */
cptr = item->child;
while (cptr)
{
// Duplicate (with recurse) each item in the ->next chain。
// 递归遍历
newchild = cJSON_Duplicate(cptr, 1);
if (!newchild)
{
cJSON_Delete(newitem);
return 0;
}
// If newitem->child already set, then crosswire ->prev and ->next and move on
if (nptr)
{
nptr->next = newchild, newchild->prev = nptr; nptr = newchild;
}
else
{
/* Set newitem->child and move to it */
newitem->child = newchild; nptr = newchild;
}
cptr = cptr->next;
}
return newitem;
}
// 缩小， 删除一堆不可见字符，回车换行等。
void cJSON_Minify(char* json)
{
char* into = 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] == '/')
{
// double-slash comments, to end of line.
while (*json && *json != '\n') json++;
}
else if (*json == '/' && json[1] == '*')
{
// multiline comments.
while (*json && !(*json == '*' && json[1] == '/')) json++; json += 2;
}
else if (*json == '\"')
{
// string literals, which are \" sensitive.
*into++ = *json++;
while (*json && *json != '\"')
{
if (*json == '\\') *into++ = *json++;
*into++ = *json++;
}
*into++ = *json++;
}
// All other characters.
else *into++ = *json++;
}
*into = 0; // and null-terminate.
}
int JsonTryGetValue_Int(cJSON* json, char* name, int def)
{
if (json == NULL)return def;
if (name == NULL)return def;
cJSON* obj = cJSON_GetObjectItem(json, name);
if (obj == NULL)return def;
return obj->valueint;
}
double JsonTryGetValue_Double(cJSON* json, char* name, double def)
{
if (json == NULL)return def;
if (name == NULL)return def;
cJSON* obj = cJSON_GetObjectItem(json, name);
if (obj == NULL)return def;
return obj->valuedouble;
}
char* JsonTryGetValue_String(cJSON* json, char* name, char* def)
{
if (json == NULL)return def;
if (name == NULL)return def;
cJSON* obj = cJSON_GetObjectItem(json, name);
if (obj == NULL)return def;
return obj->valuestring;
}
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