NSRegularExpression says its flavor of regex is "ICU." I have RegexBuddy, which supports a bunch of different flavors, but none of them calls itself "ICU." But is one of them ICU under another name? says its flavor of regex is
阅读背景：
Regex Buddy中的任何正则表达式都与NSRegularExpression（ICU）正则表达式一致吗？
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