Платон Щукин (Редактор отдела «Экономика»)
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Even so, the results are encouraging.。关于这个话题，PDF资料提供了深入分析
the standard that defines leftmost-longest is called POSIX, and despite the name suggesting it’s specific to unix, it’s really just the most natural interpretation: among all matches starting at the leftmost position, pick the longest one. this is what grep does, what awk does, and what RE# does.