CODEWITHSUNDEEP
regex
uvzoeeeey
uvzoeeeey

Reputation: 513

How to find three identical letters in the beginning of a word or inside a word

I want to find all the letters that are repeated more than three times in the beginning of a word, like

wwwhat

then only keeping one repeated letter. Then add a (repeat) at the end.
So wwwhat will become what (repeat beginning).

Also I want to find letters that are repeated more than three times inside a word, like

whaaat

and let it become what (repeat inside).

So far I have tried

(\S+)(\w)\1{2,}(\S+)

for repetition inside a word but it doesn't work.

There are no multiple repetitions like wwwhaaaat.

Thank you very much!

Upvotes: 2

Views: 178

Answers (1)

Paolo
Paolo

Reputation: 26074

You can use the following pattern:

([a-zA-Z])\1{2,}(.*$)
  • ([a-zA-Z]) Match and capture a lower or upper case letter.
  • \1{2,} Match same letter matched by the first capture group, 2 or more times.
  • (.*$) Match and capture the rest of the string.

Replacing with:

\1\2 (repeat)

Check the regex live here.

Upvotes: 3

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