Yes, I understand the purpose of escaping the \E to prevent your \Q..\E from breaking. It can also still be broken by a backward slash preceding the \E.
Feel free to test a string "\E " against regex "\Q\E\E" and "\Q\\E\E" which are your options here.
Are you sure you want to unfollow this person?
Are you sure you want to delete this?
Click "Unsubscribe" to stop receiving notices pertaining to this post.
Click "Subscribe" to resume notices pertaining to this post.