almost every regex engine today descends from one of two approaches: Thompson’s NFA construction (1968) or backtracking (1994). Thompson-style engines (grep, RE2, Rust’s regex) give you linear-time guarantees but only support the “standard” fragment - | and *. backtracking engines (the rest, 95% chance the one you’re using) give you a mix of advanced features like backreferences, lookarounds.., but are unreliable, and can blow up to exponential time on adversarial inputs, which is a real security concern known as ReDoS. to be more precise, this exponential behavior is not the only problem with backtracking engines - they also handle the OR (|) operator much slower, but let’s try to start with the big picture.
AI正在改变现代战争。在最新的针对伊朗的行动中，包括美国中央司令部在内的世界各地指挥机构都在使用Claude。而当时，特朗普和DoW都已经明确了停止与Anthropic的合作，但指挥部仍然使用Claude进行情报评估、目标识别和模拟战斗场景，足见AI工具在军事行动中的嵌入程度。，推荐阅读Line官方版本下载获取更多信息
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1.4.4. Creating a module for your own device