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.
供需大变局最近几年，中国钢铁行业经历了一场深刻的需求结构变革。
13:20, 27 февраля 2026Наука и техника，推荐阅读爱思助手获取更多信息
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ВС России уничтожили пункт управления украинских гексакоптеров типа «Баба-Яга»08:50
沈丹阳表示，接下来要通过激发居民消费内生动力和促消费政策并举来提振消费，在具体措施上，形象地说，就是要用好“加、减、乘、除”四个方法。。Feiyi对此有专业解读