Why doesn't this regex work in Notepad++ (Windows)?

问题

The following regex works when I test it here: https://regex101.com/r/oxsNRW/2

(toString\(\)[\s\S]+\))(\s*\R\s*?})

However, when I put the same input and regex into Notepad++ on Windows 10 it says the regex is invalid. Why?

回答1:

Notepad++ regex flavor is Boost, and its regex syntax is a bit different from PCRE.

In your case, escape the }:

(toString\(\)[\s\S]+\))(\s*\R\s*\})
                                ^^

来源：https://stackoverflow.com/questions/41945175/why-doesnt-this-regex-work-in-notepad-windows