Method PopulateTreeUsingSax

src/NppJsonViewer/JsonViewDlg.cpp:404–440

}

auto JsonViewDlg::PopulateTreeUsingSax(HTREEITEM tree_root, const std::string& jsonText) -> std::optional<std::wstring>
{
    std::optional<std::wstring> retVal = std::nullopt;

    auto                    pTS = std::make_shared<TrackingStream>(jsonText);
    RapidJsonHandler        handler(this, tree_root, pTS);
    rapidjson::StringBuffer sb;

    Result res = JsonHandler(m_pSetting->parseOptions).ParseJson<flgBaseReader>(jsonText, sb, handler, pTS);
    if (!res.success)
    {
        if (CheckForTokenUndefined(JsonViewDlg::eMethod::ParseJson, jsonText, res, tree_root))
            return retVal;

        // Intimate user
        if (jsonText.empty())
        {
            retVal = std::make_optional<std::wstring>(JSON_ERR_PARSE);
        }
        else
        {
            // Mark the error position
            size_t start       = m_pEditor->GetSelectionStart();
            size_t errPosition = start + static_cast<size_t>(res.error_pos);
            m_pEditor->MakeSelection(errPosition, errPosition + 1);

            std::string err = std::format("\n\nError: ({} : {})", res.error_code, res.error_str);
            retVal          = std::make_optional<std::wstring>((JSON_ERR_VALIDATE + StringHelper::ToWstring(err)));
        }
    }
    else
    {
        HighlightAsJson();
    }

    return retVal;
}

HTREEITEM JsonViewDlg::InsertToTree(HTREEITEM parent, const std::string& text)
{