Method GetPrediffPlugin

Src/FileTransform.cpp:676–767

// transformation prediffing

bool PrediffingInfo::GetPrediffPlugin(const String& filteredFilenames, bool bReverse,
	std::vector<std::tuple<PluginInfo*, uint8_t, std::vector<String>, bool>>& plugins,
	String *pPluginPipelineResolved, String& errorMessage) const
{
	auto result = ExpandAliases(this->m_PluginPipeline, filteredFilenames, L"ALIAS_PREDIFF", errorMessage);
	if (!errorMessage.empty())
		return false;
	std::vector<PluginForFile::PipelineItem> pipelineResolved;
	for (auto& [pluginName, targetFlags, args, quoteChar] : result)
	{
		PluginInfo* plugin = nullptr;
		if (pluginName == _T("<None>") || pluginName == _("<None>"))
			;
		else if (pluginName == _T("<Automatic>") || pluginName == _("<Automatic>"))
		{
			const auto filenames = strutils::split(filteredFilenames, '|');
			std::vector<std::pair<PluginInfo*, bool>> pluginInfos;
			for (int i = 0; i < filenames.size(); ++i)
			{
				bool bWithFile = true;
				const String filename{ filenames[i].data(), filenames[i].size() };
				plugin = CAllThreadsScripts::GetActiveSet()->GetAutomaticPluginByFilter(L"FILE_PREDIFF", filename);
				if (plugin == nullptr)
				{
					plugin = CAllThreadsScripts::GetActiveSet()->GetAutomaticPluginByFilter(L"BUFFER_PREDIFF", filename);
					if (plugin)
						bWithFile = false;
				}
				pluginInfos.push_back({ plugin, bWithFile });
			}
			if (!filenames.empty() &&
				std::all_of(pluginInfos.begin() + 1, pluginInfos.end(), 
					[&](const auto& elem) { return elem == pluginInfos.front(); }))
			{
				const auto& pluginInfo = pluginInfos.front();
				if (pluginInfo.first)
				{
					pipelineResolved.push_back({ pluginInfo.first->m_name, targetFlags, args, quoteChar });
					plugins.insert(bReverse ? plugins.begin() : plugins.end(),
						{ pluginInfo.first, targetFlags, args, pluginInfo.second });
				}
			}
			else
			{
				for (int i = 0; i < pluginInfos.size(); ++i)
				{
					const auto& pluginInfo = pluginInfos[i];
					if (isTargetInFlags(i, targetFlags) && pluginInfo.first)
					{
						uint8_t targetFlags2 = 1 << i;
						pipelineResolved.push_back({ pluginInfo.first->m_name, targetFlags2, args, quoteChar });
						plugins.insert(bReverse ? plugins.begin() : plugins.end(),
							{ pluginInfo.first, targetFlags2, args, pluginInfo.second });
					}
				}
			}
		}
		else