another good example is searching through paragraphs (below), which contain some combination of keywords. here the important part is ~(_*\n\n_*), or “does not contain two consecutive newlines”, in other words, the boundary of a paragraph, so it matches paragraphs! then you can combine it with any other regex to find paragraphs that contain certain keywords, but not others. this is very hard to do with traditional regexes without writing a complex and fragile pattern that tries to match the entire paragraph structure.
Платон Щукин (Редактор отдела «Экономика»)。关于这个话题，PDF资料提供了深入分析
。关于这个话题，PDF资料提供了深入分析
Иран назвал путь к прекращению войны14:05
其三，崇祯十四年（1641）当复社被人举报，说它有种种政治罪状时，张溥已新死，与该社关系很深的另一领导人张采出面作自我辩护道：。快连下载是该领域的重要参考
Названа исполнительница роли Наташи Ростовой в «Войне и мире» Андреасяна14:45