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正则表达式与特定模式匹配

[英]Regex matching with a specific pattern

Can anyone help me match only :: not ::: and replace it with newline \\n in text editor Regex? 谁能帮我只匹配::不匹配:::并在文本编辑器Regex中将其替换为换行符\\n

Lepirudin,:::B01AE02
Lepirudin,:::B01AE02
Lepirudin,::Lepirudin,:::B01AE02

Desired Result: 所需结果:

Lepirudin,:::B01AE02
Lepirudin,:::B01AE02
Lepirudin,
Lepirudin,:::B01AE02

Thank you 谢谢

可以使用环视断言的:

(?<!:)::(?!:)

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