I want to remove all hashtags from a text but it should keep the first hashtag

Example text:

This is an example #DoNotRemoveThis #removethis #removethis #removethis

Expected result:

This is an example #DoNotRemoveThis

I'm using this

\#\w \s? 

but it remove all the hashtags. I want to keep the first hashtag

CodePudding user response：

This may require further knowledge as to what flavour of regex you are using. For example, if .NET (C#) you can do variable length look-behind, and thus the following pattern will do what you need:

(?<=#.*)(#\w )/g

Test at Regex101

However, this won't work in most other engines.

CodePudding user response：

It sounds to me like you want to match everything up to but not including the second hash symbol, right?

/^[^#]*#[^#]*/

That will match any number of non-hash characters, then a hash character, then more non-hash characters.