mirror/cJSON
1
0
Fork 0
mirror of https://github.com/DaveGamble/cJSON.git synced 2023-08-10 21:13:26 +03:00
Code Issues Projects Releases Wiki Activity

add cJSON_Utils which includes JSON Pointer implementation

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/cjson/code@63 e3330c51-1366-4df0-8b21-3ccf24e3d50e
This commit is contained in:
Dave Gamble
2015-02-09 18:29:05 +00:00
parent 2abfb716d1
commit c0f5e2056b
3 changed files with 78 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
cJSON_Utils.c Normal file
View File

@ -0,0 +1,43 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cJSON_Utils.h"
cJSON *cJSONUtils_GetPointer(cJSON *object,const char *pointer)
{
cJSON *target=object;int which=0;const char *s=0;int len=0;char *element=0,*e=0;
while (*pointer=='/' && object)
{
pointer++;
if (object->type==cJSON_Array)
{
which=0;
while (*pointer>='0' && *pointer<='9') {which*=10;which+=*pointer++ - '0';}
if (*pointer && *pointer!='/') return 0;
object=cJSON_GetArrayItem(object,which);
}
else if (object->type==cJSON_Object)
{
s=pointer;len=0;
while (*s && *s!='/') {if (*s!='~') len++; s++;}
e=element=malloc(len+1); if (!element) return 0;
element[len]=0;
while (*pointer && *pointer!='/')
{
if (*pointer=='~' && pointer[1]=='0') *e++='~',pointer+=2;
else if (*pointer=='~' && pointer[1]=='1') *e++='/',pointer+=2;
else if (*pointer=='~') {free(element); return 0;} // Invalid encoding.
else *e++=*pointer++;
}
object=cJSON_GetObjectItem(object,element);
free(element);
}
else return 0;
}
return object;
}