Regex match exact character unlimitedly, and that character only

Question

For example:

• Match:

   wzzzp wzzp wrrrrp

• Skip

  wsap

w.*p matches all of the above, but I only want the first 3. It has to match any token unlimitedly, but only that exact token .

AFAIK, this seems to be pumping lemma, and can't be matched using classical Regex.

Answer 1

Perhaps this is what you are looking for.

w([a-zA-Z])\1{1,}p

• ([a-zA-Z]) Match a single character present in the list a to z
• and \\1 matches the same text as most recently matched by the 1st capturing group
• {1,} mean is repeat 1 or more