Function getProjectFileSets

plugins/grepview/grepfindthread.cpp:230–240

using FileSetCollection = std::queue<QSet<IndexedString>>;

FileSetCollection getProjectFileSets(const QList<QUrl>& dirs)
{
    FileSetCollection fileSets;
    for (const QUrl& dir : dirs) {
        const auto* const project = KDevelop::ICore::self()->projectController()->findProjectForUrl(dir);
        // Store an empty file set when project==nullptr because each element
        // of fileSets must correspond to an element of dirs at the same index.
        fileSets.push(project ? project->fileSet() : FileSetCollection::value_type{});
    }
    return fileSets;
}

const QRegularExpression& splitPatternListRegex()
{