here’s a subtle but important consequence: in RE#, rewriting your regex using boolean algebra is always safe. factor out common prefixes, distribute over union, apply de Morgan’s laws - the matches won’t change. your regex is a specification of a set of strings, and the engine faithfully finds the leftmost-longest element of that set in the input. no surprises from alternation order, no “well it depends on how PCRE explores this search tree”. just set theory.
Кирилл ДмитриевСпецпредставитель президента России
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第一百二十七条 担保人应当符合下列条件：
No more hoping producers cooperate. The policy you choose determines what happens when the buffer fills.