Method LoadMemory

port/cpl_json.cpp:227–265

* Load json document from memory buffer. * @param pabyData Buffer.data. * @param nLength Buffer size. * @return true on success. If error occurred it can be received using * CPLGetLastErrorMsg method. * */

 *
 */
bool CPLJSONDocument::LoadMemory(const GByte *pabyData, int nLength)
{
    if (nullptr == pabyData)
    {
        return false;
    }

    if (m_poRootJsonObject)
        json_object_put(TO_JSONOBJ(m_poRootJsonObject));

    if (nLength == 4 &&
        memcmp(reinterpret_cast<const char *>(pabyData), "true", nLength) == 0)
    {
        m_poRootJsonObject = json_object_new_boolean(true);
        return true;
    }

    if (nLength == 5 &&
        memcmp(reinterpret_cast<const char *>(pabyData), "false", nLength) == 0)
    {
        m_poRootJsonObject = json_object_new_boolean(false);
        return true;
    }

    json_tokener *jstok = json_tokener_new();
    m_poRootJsonObject = json_tokener_parse_ex(
        jstok, reinterpret_cast<const char *>(pabyData), nLength);
    bool bParsed = jstok->err == json_tokener_success;
    if (!bParsed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "JSON parsing error: %s (at offset %d)",
                 json_tokener_error_desc(jstok->err), jstok->char_offset);
        json_tokener_free(jstok);
        return false;
    }
    json_tokener_free(jstok);
    return bParsed;
}

/**
 * Load json document from memory buffer.