2026-03-02 17:00:00
One of the nice things about Ostrich is that it contains an extension to the SMT-LIB constraint standard to parse and handle ECMA regular expressions. Well, not all of them; ECMA and other PCRE-derived regexes are in fact not regular (2022 paper) and cannot in theory be represented accurately for string-solving purposes. In practice, though, that's rarely a problem. Ostrich also contains cool tricks to some of the traditionally difficult/impossible regex features, developed for Black Ostrich. You can read about them in the director's cut version of our paper!
。同城约会对此有专业解读
小狗照片。南方周末记者姜博文摄
第一百四十三条 承租人应当保证船舶在约定航区内的安全港口或者地点之间从事约定的海上运输。