there’s a ton of bugs in industrial applications that come from this kind of “it depends” behavior, and it’s a nightmare for testing and maintenance. even LLMs get this wrong all the time because they’ve been trained for an eternity of people getting it wrong all the time - you wouldn’t believe the types of human-hallucinated answers there are out there on stack overflow. perhaps one last thing to say here is that leftmost-longest can express every single pattern that leftmost-greedy can. it is a more general form. want to return the same results from (a|ab)+ as PCRE? just rewrite it as (a)+ - that’s what it is. the very fact that there is a difference at all means that there was a bug in the PCRE pattern, ab is an unreachable branch.
刚刚过去的春节，刘震云没能回延津老家，他去了意大利。2026年2月20日，中国的农历初四，意大利国际南北文学奖（Premio Internazionale Nord-Sud ) 的颁奖仪式在佩斯卡拉举行，刘震云成为中国小说家中首个获此殊荣的人。在意大利国际南北文学奖过往的获奖名单中，有我们熟知的阿摩司·奥兹、胡安·何塞·米利亚斯，以及诺贝尔文学奖获得者埃利亚斯·卡内蒂和彼得·汉德克。
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