Шествие «Защити беженцев — останови крайне правых», Ливерпуль, Великобритания, 9 августа 2025 года
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..).
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The market reacted positively to the news, with Block's shares rising by nearly 30 percent in extended trading following the announcement.
Израиль может устроить наземную операцию против Тегерана через иранскую часть Курдистана, воспользовавшись помощью сепаратистских движений и создав там постоянный плацдарм. Об этом в беседе с «Лентой.ру» рассказал британский политолог, президент Проекта «США — Ближний Восток» Даниэль Леви.
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