JSONStatus_t JSON_Iterate()

in source/core_json.c [1762:1813]

• 44 lines of code
• 12 McCabe index (conditional complexity)

JSONStatus_t JSON_Iterate( const char * buf,
                           size_t max,
                           size_t * start,
                           size_t * next,
                           JSONPair_t * outPair )
{
    JSONStatus_t ret;
    size_t key, keyLength, value, valueLength;

    if( ( buf == NULL ) || ( start == NULL ) || ( next == NULL ) ||
        ( outPair == NULL ) )
    {
        ret = JSONNullParameter;
    }
    else if( ( max == 0U ) || ( *start >= max ) || ( *next > max ) )
    {
        ret = JSONBadParameter;
    }
    else
    {
        skipSpace( buf, start, max );

        if( *next <= *start )
        {
            *next = *start + 1U;
            skipSpace( buf, next, max );
        }

        ret = iterate( buf, max, start, next, &key, &keyLength,
                       &value, &valueLength );
    }

    if( ret == JSONSuccess )
    {
        JSONTypes_t t = getType( buf[ value ] );

        if( t == JSONString )
        {
            /* strip the surrounding quotes */
            value++;
            valueLength -= 2U;
        }

        outPair->key = ( key == 0U ) ? NULL : &buf[ key ];
        outPair->keyLength = keyLength;
        outPair->value = &buf[ value ];
        outPair->valueLength = valueLength;
        outPair->jsonType = t;
    }

    return ret;
}