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and this is the crux of why we care: extended operators do not make sense with an ordered OR. if | isn’t commutative, then boolean algebra falls apart. A & B is supposed to equal B & A. ~~A is supposed to equal A. these identities rely on | being true union, not “try left first”. so if you want & and ~ to work correctly, you need commutative semantics. it’s not a style choice, it’s a mathematical necessity. and surprisingly also a reason for our amazing benchmark results - leftmost-longest lets you simplify your regexes without changing the matches, which i will elaborate on in another post, but for now just take my word for it that this is a huge deal for performance.
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第四十五条 自然保护区区域内的单位、个人以及进入自然保护区的人员不服从自然保护区管理机构管理的，自然保护区管理机构有权予以劝阻、制止；构成扰乱公共秩序等违反治安管理行为的，由公安机关依法给予治安管理处罚。。关于这个话题，safew官方下载提供了深入分析