Kind of ugly, but it would work. When the guess is small, you use a
old_value = self._value
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a very common use case for regexes is to find matches that are preceded or followed by some context. a classical example being all lines that end with ‘a’. this requirement is usually expressed with a lookahead, where upon finding an ‘a’, you look ahead to check if it’s the end of the line. in a backtracking engine, this is very easy to implement - you just duct-tape the logic that checks the next character, but in a DFA-based engine, this is impossible because you cannot report “the match is here” if the next character is not even known yet. and by the time you know the next character, the position information is lost, so you can’t report the match retroactively (well, unless the distance is fixed of course..).
第二百零四条 为代替可以列为共同海损的特殊费用而支付的额外费用，可以作为代替费用列入共同海损；但是，列入共同海损的代替费用的金额，不得超过被代替的共同海损的特殊费用。
，详情可参考Line官方版本下载
第三条 平等主体的自然人、法人、非法人组织之间发生的合同纠纷和其他财产权益纠纷，可以仲裁。，这一点在PDF资料中也有详细论述
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