regex - Is there a way to get the beginning of a word based on the match of the end of the word?

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问题描述

I'm trying to create a regex that can find all words that end with "Ctrl" and get only the beginning of the word. So for "QuestionCtrl" I would only want to get "Question".

So far I've boiled it down to something like this: \b(\w*(Ctrl)\w*)\b

标签： regex

解决方案

听起来你正在寻找前瞻：

\b\w+(?=Ctrl\b)

regex - Is there a way to get the beginning of a word based on the match of the end of the word?

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