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Wire in ParseWithOpts to allow detection of JSON with following garbage.

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git-svn-id: http://svn.code.sf.net/p/cjson/code@50 e3330c51-1366-4df0-8b21-3ccf24e3d50e
This commit is contained in:
Dave Gamble 2013-02-06 12:44:17 +00:00
parent d755436ba7
commit 96c59f3e49
2 changed files with 14 additions and 2 deletions
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12
cJSON.c
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@ -249,15 +249,23 @@ static char *print_object(cJSON *item,int depth,int fmt);
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_Parse(const char *value)
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 */
if (!parse_value(c,skip(value))) {cJSON_Delete(c);return 0;}
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);}

4
cJSON.h
View File

@ -120,6 +120,10 @@ extern cJSON *cJSON_Duplicate(cJSON *item,int recurse);
need to be released. With recurse!=0, it will duplicate any children connected to the item.
The item->next and ->prev pointers are always zero on return from Duplicate. */
/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed */
extern cJSON *cJSON_ParseWithOpts(const char *value,const char **return_parse_end,int require_null_terminated);
#define cJSON_AddNullToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateNull())
#define cJSON_AddTrueToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateTrue())
#define cJSON_AddFalseToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateFalse())