Files
ArduinoJson/JsonParser/JsonObjectBase.cpp
2014-06-24 13:14:07 +02:00

67 lines
1.3 KiB
C++

/*
* malloc-free JSON parser for Arduino
* Benoit Blanchon 2014
* MIT License
*/
#include "JsonObjectBase.h"
#include <stdlib.h> // for strtol, strtod
int JsonObjectBase::getNestedTokenCount(jsmntok_t* token)
{
int end = token->end;
int count = 0;
token++;
while (token->start < end)
{
token++;
count++;
}
return count;
}
bool JsonObjectBase::getBoolFromToken(jsmntok_t* token)
{
if (token->type != JSMN_PRIMITIVE) return 0;
// "true"
if (json[token->start] == 't') return true;
// "false"
if (json[token->start] == 'f') return false;
// "null"
if (json[token->start] == 'n') return false;
// number
return strtol(json + token->start, 0, 0) != 0;
}
double JsonObjectBase::getDoubleFromToken(jsmntok_t* token)
{
if (token == 0 || token->type != JSMN_PRIMITIVE) return 0;
return strtod(json + token->start, 0);
}
long JsonObjectBase::getLongFromToken(jsmntok_t* token)
{
if (token == 0 || token->type != JSMN_PRIMITIVE) return 0;
return strtol(json + token->start, 0, 0);
}
char* JsonObjectBase::getStringFromToken(jsmntok_t* token)
{
if (token == 0 || token->type != JSMN_PRIMITIVE && token->type != JSMN_STRING)
return 0;
// add null terminator to the string
json[token->end] = 0;
return json + token->start;
}