open-source-search-engine/Json.h
Matt Wells 9642947136 fix so host #0 will delete then re-add collections
that use the same collnum but have a different name.
fixed some unlabelled safebufs.
fix core when deleting collnum from tree/buckets that
is higher than Collectiondb.m_numRecs.
fix File::m_filename safebufs that were not freed on exit.
2015-08-18 14:09:16 -07:00

97 lines
1.9 KiB
C++

#ifndef JSON_H
#define JSON_H
#define JT_NULL 2
#define JT_NUMBER 3
#define JT_STRING 4
#define JT_ARRAY 5
#define JT_OBJECT 6
//#define JT_IsReference 256
#include "gb-include.h"
#include "Unicode.h"
#include "SafeBuf.h"
#define MAXJSONPARENTS 64
bool endsInCurly ( char *s , int32_t slen );
class JsonItem {
public:
// scan the linked list
class JsonItem *m_next,*m_prev;
class JsonItem *m_parent;//child;
// the JT_* values above
int m_type;
// . the NAME of the item
// . points into the ORIGINAL json string
char *m_name;
int32_t m_nameLen;
// for JT_NUMBER
int32_t m_valueLong;
int64_t m_value64;
// for JT_NUMBER
double m_valueDouble;
// for JT_String
int32_t m_valueLen;
char *m_valueArray;
// for JT_String
int32_t getValueLen() { return m_valueLen; };
// for arrays (JT_ARRAY), hack the char ptr into m_valueLong
char *getArrayStart() { return m_valueArray;}; //(char *)m_valueLong; }
int32_t getArrayLen () { return m_valueLen; };
// for JT_String
char *getValue () {
// if value is another json object, then return NULL
// must be string
if ( m_type != JT_STRING ) return NULL;
// otherwie return the string which is stored decoded
// after this object in the same buffer
return (char *)this + sizeof(JsonItem);
};
// convert numbers and bools to strings for this one
char *getValueAsString ( int32_t *valueLen ) ;
// like acme.product.offerPrice if "acme:{product:{offerprice:1.23}}"
bool getCompoundName ( SafeBuf &nameBuf ) ;
bool isInArray ( );
};
class Json {
public:
void test();
JsonItem *parseJsonStringIntoJsonItems ( char *json , int32_t niceness );
JsonItem *getFirstItem ( ) ;
JsonItem *getItem ( char *name );
JsonItem *addNewItem ();
Json() { m_stackPtr = 0; m_prev = NULL; };
SafeBuf m_sb;
JsonItem *m_stack[MAXJSONPARENTS];
int32_t m_stackPtr;
class JsonItem *m_prev;
void reset() { m_sb.purge(); };
};
#endif