CODEWITHSUNDEEP
regex
dahaka5
dahaka5

Reputation: 1

Regex remove duplicates

I have a bit of a problem trying to remove duplicate strings in regex. Here are some example strings, followed by my code and then followed by what im getting vs what I want.

Examples

Test1; Test3; Test3; Test12
Test3; Test3

My code 

\b(\w+); (?=.*\b\1;?) replaceing with blanks

Gives me

Test3; Test12
Test3

I want 

Test1; Test3; Test12 
Test3

Any help would be greatly appreciated!

Thanks

Upvotes: 0

Views: 63

Answers (1)

Tim Pietzcker
Tim Pietzcker

Reputation: 336158

Your problem is that Test1 also matches part of Test12. You already used word boundary anchors, just not in all the necessary spots:

\b(\w+)\b; (?=.*\b\1\b)

Test it live on regex101.com.

Upvotes: 1

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